Turbine bucket
First Claim
Patent Images
1. A turbine bucket which is formed in such a manner that the blade sectional configuration is twisted from a blade root portion to a blade tip side, characterized in that when assuming two axial directions in a blade section of the bucket along horizontal plane and taking one axial direction as X axis and the other axial direction perpendicular to X axis as Y axis, the blade sections at the following heights from the blade root portion of the turbine bucket are formed in a range of ±
- 0.3 mm from series of points defining blade section configurations as defined in the following charts;
the blade section at the blade root portion of the turbine bucket being as follows,back sidefront side No.XYNo.XY 153.99−
the blade section at height 106 mm from the blade root portion of the turbine bucket being as follows,
24.71152.62−
25.77250.02−
17.17247.80−
20.24345.14−
10.18342.25−
15.44439.48−
3.82436.20−
11.29533.071.81529.78−
7.73625.976.52623.07−
4.77718.2910.21716.11−
2.45810.1512.7488.95−
0.8391.7314.0691.66−
0.0310−
6.7913.8710−
5.68−
0.1211−
15.1612.2811−
12.95−
1.0912−
23.159.3212−
20.07−
2.8713−
30.515.0213−
26.93−
5.4814−
37.09−
0.4114−
33.39−
8.9515−
42.73−
6.7915−
39.49−
13.0416−
47.73−
13.7016−
45.16−
17.6917−
52.03−
21.0517−
50.35−
22.87back sidefront side No.XYNo.XY 148.84−
the blade section at height 215 mm from the blade root portion of the turbine bucket being as follows,
14.22147.62−
15.33245.047.24242.70−
10.44339.981.13336.97−
6.55433.934.03430.70−
3.59527.178.18524.12−
1.42619.8311.20617.340.03712.1013.00710.460.7784.1613.3083.530.839−
3.6912.199−
3.360.1110−
11.299.8910−
10.12−
1.4211−
18.466.4911−
16.65−
3.7312−
25.092.1212−
22.87−
6.7813−
31.11−
3.0513−
28.72−
10.5014−
36.37−
8.9914−
34.16−
14.7915−
41.17−
15.3215−
39.16−
19.5916−
45.44−
22.0116−
43.72−
24.8017−
49.16−
29.0117−
47.82−
30.39back sidefront side No.XYNo.XY 144.68−
the blade section at height 340 mm from the blade root portion of the turbine bucket being as follows,
3.59143.82−
4.91239.781.83238.27−
1.43334.016.30332.231.10427.559.70425.852.57520.5811.89519.333.17613.3312.82612.783.1376.0312.5976.282.348−
1.0610.878−
0.070.759−
7.798.029−
6.25−
1.4110−
14.024.2310−
12.15−
4.2511−
19.83−
0.2111−
17.68−
7.7512−
25.17−
5.1912−
22.83−
11.8013−
29.98−
10.6813−
27.66−
16.2214−
34.41−
16.4814−
32.18−
20.9515−
38.43−
22.5715−
36.40−
25.9616−
42.01−
28.9416−
40.29−
31.2317−
45.13−
35.5417−
43.84−
36.73back sidefront side No.XYNo.XY 137.6913.97137.8012.45231.6416.22231.7912.04325.2116.73325.8511.01418.7616.27420.029.47512.4414.91514.347.4866.3712.7068.795.1170.559.8673.422.398−
the blade section at height 470 mm from the blade root portion of the turbine bucket being as follows,
4.926.428−
1.69−
0.809−
9.962.379−
6.66−
4.2210−
14.57−
2.1710−
11.36−
8.0011−
18.80−
7.0711−
15.71−
12.1612−
22.72−
12.2112−
19.74−
16.6513−
26.37−
17.5513−
23.50−
21.3514−
29.70−
23.1014−
27.08−
26.2115−
32.68−
28.8415−
30.43−
31.2216−
35.38−
34.7216−
33.57−
36.3617−
37.79−
40.7217−
36.49−
41.64back sidefront side No.XYNo.XY 126.2525.52127.1224.37220.9924.07223.2820.71316.0421.69319.2417.22411.4218.70415.1213.8157.0715.29511.0610.3463.0011.5467.136.717−
the blade section at height 589 mm from the blade root portion of the turbine bucket being as follows,
0.827.5173.352.928−
4.373.248−
0.27−
1.039−
7.72−
1.209−
3.72−
5.1510−
10.76−
5.8610−
7.04−
9.3711−
13.58−
10.6611−
10.18−
13.7312−
16.24−
15.5512−
13.16−
18.2113−
18.73−
20.5413−
15.96−
22.8014−
21.05−
25.6114−
18.60−
27.4915−
23.20−
30.7515−
21.12−
32.2516−
25.17−
35.9716−
23.50−
37.0817−
26.96−
41.2617−
25.76−
41.97back sidefront side No.XYNo.XY 117.3029.70118.4428.95213.5826.72216.8624.50310.4523.13314.4820.4247.6419.28411.8016.5355.0415.2859.1212.6562.6311.1766.528.7170.366.9874.004.728−
the blade section at height 660.4 mm from the blade root portion of the turbine bucket being as follows,
1.792.7381.550.689−
3.90−
1.559−
0.81−
3.4110−
5.95−
5.8510−
3.09−
7.5411−
7.93−
10.1811−
5.31−
11.7112−
9.86−
14.5412−
7.47−
15.9013−
11.72−
18.9313−
9.59−
20.1314−
13.51−
23.3414−
11.64−
24.3815−
15.24−
27.7815−
13.64−
28.6516−
16.90−
32.2516−
15.57−
32.9617−
18.49−
36.7417−
17.44−
37.30back sidefront side No.XYNo.XY 115.2930.21116.3829.26212.0627.20215.3325.0139.3923.68313.5321.0347.1819.86411.3917.2255.2315.8959.1713.4563.3711.8966.999.6671.487.9074.885.838−
0.333.8882.772.009−
2.14−
0.1590.71−
1.8510−
3.94−
4.1910−
1.29−
5.7411−
5.71−
8.2311−
3.27−
9.6412−
7.44−
12.2912−
5.22−
13.5513−
9.14−
16.3713−
7.16−
17.4714−
10.80−
20.4614−
9.07−
21.4115−
12.44−
24.5615−
10.94−
25.3616−
14.02−
28.6816−
12.76−
29.3317−
15.55−
32.8217−
14.54−
33.33
2 Assignments
0 Petitions
Accused Products
Abstract
The present invention relates to a turbine bucket to be provided at the low pressure last stage of a steam turbine and an object of the present invention is to provide a turbine bucket in which the adjacent blades are connected without using a connecting member at a blade intermediate portion. In order to achieve the object of the present invention, a turbine bucket of the present invention is formed in such a manner that the blade sectional configuration is twisted from a blade root portion to a blade tip side, and when assuming two axial directions in a blade section of the bucket on horizontal plane and taking one axial direction as X axis and the other axial direction perpendicular to X axis as Y axis, the blade sections at predetermined heights from the blade root portion of the turbine bucket are formed in a range of ±0.3 mm from respective points defining blade section configurations as shown respectively in chart 1, chart 4, chart 7, chart 10, chart 13, chart 16 and chart 18.
14 Citations
20 Claims
-
1. A turbine bucket which is formed in such a manner that the blade sectional configuration is twisted from a blade root portion to a blade tip side, characterized in that when assuming two axial directions in a blade section of the bucket along horizontal plane and taking one axial direction as X axis and the other axial direction perpendicular to X axis as Y axis, the blade sections at the following heights from the blade root portion of the turbine bucket are formed in a range of ±
- 0.3 mm from series of points defining blade section configurations as defined in the following charts;
the blade section at the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 53.99 −
24.711 52.62 −
25.772 50.02 −
17.172 47.80 −
20.243 45.14 −
10.183 42.25 −
15.444 39.48 −
3.824 36.20 −
11.295 33.07 1.81 5 29.78 −
7.736 25.97 6.52 6 23.07 −
4.777 18.29 10.21 7 16.11 −
2.458 10.15 12.74 8 8.95 −
0.839 1.73 14.06 9 1.66 −
0.0310 −
6.7913.87 10 −
5.68−
0.1211 −
15.1612.28 11 −
12.95−
1.0912 −
23.159.32 12 −
20.07−
2.8713 −
30.515.02 13 −
26.93−
5.4814 −
37.09−
0.4114 −
33.39−
8.9515 −
42.73−
6.7915 −
39.49−
13.0416 −
47.73−
13.7016 −
45.16−
17.6917 −
52.03−
21.0517 −
50.35−
22.87the blade section at height 106 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 48.84 −
14.221 47.62 −
15.332 45.04 7.24 2 42.70 −
10.443 39.98 1.13 3 36.97 −
6.554 33.93 4.03 4 30.70 −
3.595 27.17 8.18 5 24.12 −
1.426 19.83 11.20 6 17.34 0.03 7 12.10 13.00 7 10.46 0.77 8 4.16 13.30 8 3.53 0.83 9 −
3.6912.19 9 −
3.360.11 10 −
11.299.89 10 −
10.12−
1.4211 −
18.466.49 11 −
16.65−
3.7312 −
25.092.12 12 −
22.87−
6.7813 −
31.11−
3.0513 −
28.72−
10.5014 −
36.37−
8.9914 −
34.16−
14.7915 −
41.17−
15.3215 −
39.16−
19.5916 −
45.44−
22.0116 −
43.72−
24.8017 −
49.16−
29.0117 −
47.82−
30.39the blade section at height 215 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 44.68 −
3.591 43.82 −
4.912 39.78 1.83 2 38.27 −
1.433 34.01 6.30 3 32.23 1.10 4 27.55 9.70 4 25.85 2.57 5 20.58 11.89 5 19.33 3.17 6 13.33 12.82 6 12.78 3.13 7 6.03 12.59 7 6.28 2.34 8 −
1.0610.87 8 −
0.070.75 9 −
7.798.02 9 −
6.25−
1.4110 −
14.024.23 10 −
12.15−
4.2511 −
19.83−
0.2111 −
17.68−
7.7512 −
25.17−
5.1912 −
22.83−
11.8013 −
29.98−
10.6813 −
27.66−
16.2214 −
34.41−
16.4814 −
32.18−
20.9515 −
38.43−
22.5715 −
36.40−
25.9616 −
42.01−
28.9416 −
40.29−
31.2317 −
45.13−
35.5417 −
43.84−
36.73the blade section at height 340 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 37.69 13.97 1 37.80 12.45 2 31.64 16.22 2 31.79 12.04 3 25.21 16.73 3 25.85 11.01 4 18.76 16.27 4 20.02 9.47 5 12.44 14.91 5 14.34 7.48 6 6.37 12.70 6 8.79 5.11 7 0.55 9.86 7 3.42 2.39 8 −
4.926.42 8 −
1.69−
0.809 −
9.962.37 9 −
6.66−
4.2210 −
14.57−
2.1710 −
11.36−
8.0011 −
18.80−
7.0711 −
15.71−
12.1612 −
22.72−
12.2112 −
19.74−
16.6513 −
26.37−
17.5513 −
23.50−
21.3514 −
29.70−
23.1014 −
27.08−
26.2115 −
32.68−
28.8415 −
30.43−
31.2216 −
35.38−
34.7216 −
33.57−
36.3617 −
37.79−
40.7217 −
36.49−
41.64the blade section at height 470 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 26.25 25.52 1 27.12 24.37 2 20.99 24.07 2 23.28 20.71 3 16.04 21.69 3 19.24 17.22 4 11.42 18.70 4 15.12 13.81 5 7.07 15.29 5 11.06 10.34 6 3.00 11.54 6 7.13 6.71 7 −
0.827.51 7 3.35 2.92 8 −
4.373.24 8 −
0.27−
1.039 −
7.72−
1.209 −
3.72−
5.1510 −
10.76−
5.8610 −
7.04−
9.3711 −
13.58−
10.6611 −
10.18−
13.7312 −
16.24−
15.5512 −
13.16−
18.2113 −
18.73−
20.5413 −
15.96−
22.8014 −
21.05−
25.6114 −
18.60−
27.4915 −
23.20−
30.7515 −
21.12−
32.2516 −
25.17−
35.9716 −
23.50−
37.0817 −
26.96−
41.2617 −
25.76−
41.97the blade section at height 589 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 17.30 29.70 1 18.44 28.95 2 13.58 26.72 2 16.86 24.50 3 10.45 23.13 3 14.48 20.42 4 7.64 19.28 4 11.80 16.53 5 5.04 15.28 5 9.12 12.65 6 2.63 11.17 6 6.52 8.71 7 0.36 6.98 7 4.00 4.72 8 −
1.792.73 8 1.55 0.68 9 −
3.90−
1.559 −
0.81−
3.4110 −
5.95−
5.8510 −
3.09−
7.5411 −
7.93−
10.1811 −
5.31−
11.7112 −
9.86−
14.5412 −
7.47−
15.9013 −
11.72−
18.9313 −
9.59−
20.1314 −
13.51−
23.3414 −
11.64−
24.3815 −
15.24−
27.7815 −
13.64−
28.6516 −
16.90−
32.2516 −
15.57−
32.9617 −
18.49−
36.7417 −
17.44−
37.30the blade section at height 660.4 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 15.29 30.21 1 16.38 29.26 2 12.06 27.20 2 15.33 25.01 3 9.39 23.68 3 13.53 21.03 4 7.18 19.86 4 11.39 17.22 5 5.23 15.89 5 9.17 13.45 6 3.37 11.89 6 6.99 9.66 7 1.48 7.90 7 4.88 5.83 8 −
0.333.88 8 2.77 2.00 9 −
2.14−
0.159 0.71 −
1.8510 −
3.94−
4.1910 −
1.29−
5.7411 −
5.71−
8.2311 −
3.27−
9.6412 −
7.44−
12.2912 −
5.22−
13.5513 −
9.14−
16.3713 −
7.16−
17.4714 −
10.80−
20.4614 −
9.07−
21.4115 −
12.44−
24.5615 −
10.94−
25.3616 −
14.02−
28.6816 −
12.76−
29.3317 −
15.55−
32.8217 −
14.54−
33.33 - View Dependent Claims (17, 18, 20)
- 0.3 mm from series of points defining blade section configurations as defined in the following charts;
-
2. A turbine bucket which is formed in such a manner that the blade sectional configuration is twisted from a blade root portion to a blade tip side, characterized in that when assuming two axial directions in a blade section of the bucket along horizontal plane and taking one axial direction as X axis and the other axial direction perpendicular to X axis as Y axis, the blade sections at the following heights from the blade root portion of the turbine bucket are formed in a range of ±
- 0.3 mm from series of points defining blade section configurations as defined in the following charts;
the blade section at height 0 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 53.99 −
24.711 52.62 −
25.772 50.02 −
17.172 47.80 −
20.243 45.14 −
10.183 42.25 −
15.444 39.48 −
3.824 36.20 −
11.295 33.07 1.81 5 29.78 −
7.736 25.97 6.52 6 23.07 −
4.777 18.29 10.21 7 16.11 −
2.458 10.15 12.74 8 8.95 −
0.839 1.73 14.06 9 1.66 −
0.0310 −
6.7913.87 10 −
5.68−
0.1211 −
15.1612.28 11 −
12.95−
1.0912 −
23.159.32 12 −
20.07−
2.8713 −
30.515.02 13 −
26.93−
5.4814 −
37.09−
0.4114 −
33.39−
8.9515 −
42.73−
6.7915 −
39.49−
13.0416 −
47.73−
13.7016 −
45.16−
17.6917 −
52.03−
21.0517 −
50.35−
22.87the blade section at height 70 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 50.39 −
17.431 49.09 −
18.502 46.75 −
10.152 44.31 −
13.333 41.86 −
3.663 38.69 −
9.084 35.95 1.93 4 32.51 −
5.685 29.26 6.54 5 25.98 −
3.066 21.93 10.07 6 19.19 −
1.187 14.17 12.50 7 12.23 −
0.078 6.12 13.60 8 5.20 0.39 9 −
2.0113.24 9 −
1.840.08 10 −
9.9411.46 10 −
8.80−
1.0211 −
17.518.50 11 −
15.59−
2.8812 −
24.634.57 12 −
22.14−
5.4713 −
31.10−
0.3513 −
28.37−
8.7714 −
36.71−
6.2414 −
34.19−
12.7415 −
41.80−
12.5715 −
39.51−
17.3516 −
46.31−
19.3316 −
44.39−
22.4317 −
50.21−
26.4717 −
48.78−
27.94the blade section at height 138 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 47.48 −
10.881 46.31 −
12.022 43.52 −
4.192 41.24 −
7.473 38.40 1.65 3 35.40 −
3.974 32.26 6.39 4 29.07 −
1.475 25.35 9.92 5 22.46 0.19 6 17.96 12.29 6 15.72 1.14 7 10.29 13.46 7 8.92 1.42 8 2.54 13.02 8 2.14 0.85 9 −
5.0011.19 9 −
4.57−
0.2910 −
12.208.30 10 −
11.13−
2.1511 −
18.954.47 11 −
17.40−
4.7812 −
25.15−
0.2012 −
23.32−
8.1513 −
30.75−
5.5713 −
28.80−
12.1814 −
35.73−
11.5214 −
33.87−
16.7315 −
40.28−
17.8115 −
38.56−
21.6616 −
44.35−
24.4016 −
42.85−
26.9517 −
47.94−
31.2917 −
46.68−
32.57the blade section at height 215 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 44.68 −
3.591 43.82 −
4.912 39.78 1.83 2 38.27 −
1.433 34.01 6.30 3 32.23 1.10 4 27.55 9.70 4 25.85 2.57 5 20.58 11.89 5 19.33 3.17 6 13.33 12.82 6 12.78 3.13 7 6.03 12.59 7 6.28 2.34 8 −
1.0610.87 8 −
0.070.75 9 −
7.798.02 9 −
6.25−
1.4110 −
14.024.23 10 −
12.15−
4.2511 −
19.83−
0.2111 −
17.68−
7.7512 −
25.17−
5.1912 −
22.83−
11.8013 −
29.98−
10.6813 −
27.66−
16.2214 −
34.41−
16.4814 −
32.18−
20.9515 −
38.43−
22.5715 −
36.40−
25.9616 −
42.01−
28.9416 −
40.29−
31.2317 −
45.13−
35.5417 −
43.84−
36.73the blade section at height 300 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 40.93 6.66 1 40.66 5.15 2 35.55 10.84 2 34.66 6.83 3 29.24 13.45 3 28.45 7.41 4 22.54 14.73 4 22.23 7.15 5 15.71 14.78 5 16.06 6.20 6 8.98 13.66 6 10.03 4.64 7 2.56 11.37 7 4.16 2.57 8 −
3.568.37 8 −
1.520.00 9 −
9.154.47 9 −
6.90−
3.1410 −
14.29−
0.0110 −
11.98−
6.7411 −
19.06−
4.8811 −
16.72−
10.7812 −
23.50−
10.0412 −
21.12−
15.2013 −
27.59−
15.5013 −
25.23−
19.8814 −
31.33−
21.2014 −
29.04−
24.8115 −
34.70−
27.1215 −
32.59−
29.9316 −
37.74−
33.2216 −
35.98−
35.1617 −
40.43−
39.4917 −
39.14−
40.52the blade section at height 380 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 34.40 18.53 1 34.94 17.12 2 28.28 19.58 2 29.37 15.30 3 22.09 19.13 3 23.90 13.20 4 16.08 17.57 4 18.56 10.79 5 10.33 15.20 5 13.35 8.11 6 4.89 12.20 6 8.27 5.18 7 −
0.288.75 7 3.35 2.00 8 −
5.184.92 8 −
1.42−
1.419 −
9.720.67 9 −
5.97−
5.1010 −
13.91−
3.9210 −
10.29−
9.0611 −
17.81−
8.7611 −
14.36−
13.2812 −
21.42−
13.8312 −
18.16−
17.7413 −
24.72−
19.1013 −
21.68−
22.4214 −
27.69−
24.5614 −
24.96−
27.2815 −
30.34−
30.1915 −
28.03−
32.2716 −
32.75−
35.9216 −
30.92−
37.3717 −
34.93−
41.7417 −
33.62−
42.57the blade section at height 470 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 26.25 25.52 1 27.12 24.37 2 20.99 24.07 2 23.28 20.71 3 16.04 21.69 3 19.24 17.22 4 11.42 18.70 4 15.12 13.81 5 7.07 15.29 5 11.06 10.34 6 3.00 11.54 6 7.13 6.71 7 −
0.827.51 7 3.35 2.92 8 −
4.373.24 8 −
0.27−
1.039 −
7.72−
1.209 −
3.72−
5.1510 −
10.76−
5.8610 −
7.04−
9.3711 −
13.58−
10.6611 −
10.18−
13.7312 −
16.24−
15.5512 −
13.16−
18.2113 −
18.73−
20.5413 −
15.96−
22.8014 −
21.05−
25.6114 −
18.60−
27.4915 −
23.20−
30.7515 −
21.12−
32.2516 −
25.17−
35.9716 −
23.50−
37.0817 −
26.96−
41.2617 −
25.76−
41.97the blade section at height 550 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 18.75 29.44 1 19.92 28.64 2 14.59 26.71 2 17.67 24.27 3 11.03 23.23 3 14.95 20.19 4 7.89 19.37 4 11.99 16.27 5 5.01 15.31 5 9.06 12.33 6 2.34 11.11 6 6.24 8.31 7 −
0.156.80 7 3.50 4.23 8 −
2.512.42 8 0.87 0.09 9 −
4.78−
2.019 −
1.66−
4.1210 −
6.98−
6.4810 −
4.09−
8.3911 −
9.10−
10.9811 −
6.43−
12.7012 −
11.14−
15.5212 −
8.71−
17.0513 −
13.09−
20.1013 −
10.92−
21.4414 −
14.97−
24.7114 −
13.05−
25.8615 −
16.76−
29.3515 −
15.12−
30.3116 −
18.47−
34.0216 −
17.11−
34.8017 −
20.10−
38.7317 −
19.03−
39.32the blade section at height 625 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 16.24 30.11 1 17.35 29.20 2 12.85 27.01 2 16.11 24.82 3 9.96 23.44 3 14.04 20.78 4 7.44 19.61 4 11.63 16.92 5 5.16 15.62 5 9.17 13.09 6 3.01 11.56 6 6.78 9.22 7 0.94 7.46 7 4.46 5.31 8 −
1.053.33 8 2.18 1.38 9 −
3.00−
0.839 −
0.03−
2.6010 −
4.93−
5.0010 −
2.17−
6.6111 −
6.80−
9.1911 −
4.27−
10.6512 −
8.63−
13.4012 −
6.33−
14.7013 −
10.41−
17.6313 −
8.35−
18.7714 −
12.14−
21.8814 −
10.34−
22.8715 −
13.82−
26.1515 −
12.27−
26.9816 −
15.45−
30.4516 −
14.15−
31.1317 −
17.01−
34.7617 −
15.97−
35.29
- 0.3 mm from series of points defining blade section configurations as defined in the following charts;
-
3. A turbine bucket which is formed in such a manner that the blade sectional configuration is twisted from a blade root portion to a blade tip side, characterized in that when assuming two axial directions in a blade section of the bucket along horizontal plane and taking one axial direction as X axis and the other axial direction perpendicular to X axis as Y axis, the blade sections at the following heights from the blade root portion of the turbine bucket are formed in a range of ±
- 0.3 mm from series of points defining blade section configurations as defined in the following charts;
the blade section at height 38 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 52.43 −
21.701 51.11 −
22.822 48.76 −
14.192 46.67 −
17.103 43.96 −
7.343 41.19 −
12.374 38.16 −
1.334 35.07 −
8.495 31.56 3.80 5 28.58 −
5.286 24.37 8.05 6 21.79 −
2.787 16.65 11.25 7 14.74 −
1.108 8.50 13.13 8 7.56 −
0.199 0.16 13.65 9 0.32 0.05 10 −
8.1312.67 10 −
6.90−
0.5211 −
16.1710.36 11 −
14.00−
1.9312 −
23.766.87 12 −
20.90−
4.1313 −
30.702.21 13 −
27.50−
7.1114 −
36.86−
3.4414 −
33.70−
10.8515 −
42.24−
9.8315 −
39.44−
15.2616 −
47.01−
16.6916 −
44.74−
20.1917 −
51.12−
23.9717 −
49.55−
25.60the blade section at height 106 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 48.84 −
14.221 47.62 −
15.332 45.04 −
7.242 42.70 −
10.443 39.98 −
1.133 36.97 −
6.554 33.93 4.03 4 30.70 −
3.595 27.17 8.18 5 24.12 −
1.426 19.83 11.20 6 17.34 0.03 7 12.10 13.00 7 10.46 0.77 8 4.16 13.30 8 3.53 0.83 9 −
3.6912.19 9 −
3.360.11 10 −
11.299.89 10 −
10.12−
1.4211 −
18.466.49 11 −
16.65−
3.7312 −
25.092.12 12 −
22.87−
6.7813 −
31.11−
3.0513 −
28.72−
10.5014 −
36.37−
8.9914 −
34.16−
14.7915 −
41.17−
15.3215 −
39.16−
19.5916 −
45.44−
22.0116 −
43.72−
24.8017 −
49.16−
29.0117 −
47.82−
30.39the blade section at height 170 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 46.46 −
8.071 45.38 −
9.282 42.08 −
1.902 40.10 −
5.143 36.54 3.23 3 34.14 −
2.074 30.18 7.33 4 27.77 0.01 5 23.27 10.41 5 21.19 1.27 6 15.97 12.37 6 14.51 1.84 7 8.44 13.03 7 7.81 1.79 8 0.94 12.07 8 1.16 0.96 9 −
6.299.87 9 −
5.36−
0.5710 −
13.106.60 10 −
11.65−
2.8711 −
19.482.54 11 −
17.62−
5.9212 −
25.32−
2.2612 −
23.21−
9.6113 −
30.53−
7.7413 −
28.41−
13.8314 −
35.32−
13.5814 −
33.26−
18.4615 −
39.66−
19.7715 −
37.75−
23.4316 −
43.52−
26.2716 −
41.87−
28.7217 −
46.88−
33.0517 −
45.58−
34.30the blade section at height 255 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 42.87 1.04 1 42.19 −
0.362 37.78 5.95 2 36.56 2.68 3 31.80 9.72 3 30.40 4.36 4 25.19 12.25 4 24.04 5.05 5 18.23 13.49 5 17.65 4.98 6 11.16 13.47 6 11.31 4.21 7 4.18 12.32 7 5.08 2.79 8 −
2.459.86 8 −
0.900.55 9 −
8.626.41 9 −
6.70−
2.1510 −
14.382.30 10 −
12.15−
5.4711 −
19.60−
2.4511 −
17.20−
9.3912 −
24.36−
7.6912 −
21.89−
13.7313 −
28.80−
13.1913 −
26.34−
18.3214 −
32.88−
18.9614 −
30.54−
23.1315 −
36.59−
24.9815 −
34.49−
28.1516 −
39.91−
31.2216 −
38.16−
33.3817 −
42.84−
37.6517 −
41.55−
38.80the blade section at height 340 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 37.69 13.97 1 37.80 12.45 2 31.64 16.22 2 31.79 12.04 3 25.21 16.73 3 25.85 11.01 4 18.76 16.27 4 20.02 9.47 5 12.44 14.91 5 14.34 7.48 6 6.37 12.70 6 8.79 5.11 7 0.55 9.86 7 3.42 2.39 8 −
4.926.42 8 −
1.69−
0.809 −
9.962.37 9 −
6.66−
4.2210 −
14.57−
2.1710 −
11.36−
8.0011 −
18.80−
7.0711 −
15.71−
12.1612 −
22.72−
12.2112 −
19.74−
16.6513 −
26.37−
17.5513 −
23.50−
21.3514 −
29.70−
23.1014 −
27.08−
26.2115 −
32.68−
28.8415 −
30.43−
31.2216 −
35.38−
34.7216 −
33.57−
36.3617 −
37.79−
40.7217 −
36.49−
41.64the blade section at height 425 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 30.60 22.64 1 31.33 21.37 2 24.70 22.25 2 26.65 18.23 3 19.03 20.65 3 21.91 15.18 4 13.62 18.27 4 17.13 12.20 5 8.51 15.32 5 12.42 9.11 6 3.72 11.88 6 7.84 5.82 7 −
0.758.02 7 3.45 2.29 8 −
4.923.85 8 −
0.74−
1.479 −
8.90−
0.529 −
4.72−
5.4610 −
12.47−
5.2110 −
8.55−
9.5911 −
15.76−
10.1111 −
12.18−
13.9012 −
18.83−
15.1512 −
15.57−
18.4013 −
21.69−
20.3113 −
18.73−
23.0714 −
24.33−
25.5914 −
21.68−
27.8715 −
26.73−
30.9815 −
24.46−
32.7716 −
28.90−
36.4716 −
27.08−
37.7617 −
30.82−
42.0517 −
29.54−
42.83the blade section at height 510 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 22.39 28.09 1 23.38 27.05 2 17.67 25.69 2 20.28 22.91 3 13.38 22.60 3 16.87 19.03 4 9.44 19.07 4 13.34 15.25 5 5.78 15.25 5 9.86 11.43 6 2.34 11.23 6 6.50 7.51 7 −
0.897.04 7 3.25 3.48 8 −
3.902.69 8 0.14 −
0.649 −
6.68−
1.829 −
2.84−
4.8610 −
9.25−
6.4410 −
5.69−
9.1711 −
11.66−
11.1511 −
8.41−
13.5712 −
13.94−
15.9212 −
11.01−
18.0313 −
16.11−
20.7513 −
13.50−
22.5614 −
18.15−
25.6314 −
15.88−
27.1515 −
20.07−
30.5615 −
18.15−
31.7916 −
21.87−
35.5416 −
20.33−
36.4817 −
23.54−
40.5617 −
22.39−
41.21the blade section at height 589 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 17.30 29.70 1 18.44 28.95 2 13.58 26.72 2 16.86 24.50 3 10.45 23.13 3 14.48 20.42 4 7.64 19.28 4 11.80 16.53 5 5.04 15.28 5 9.12 12.65 6 2.63 11.17 6 6.52 8.71 7 0.36 6.98 7 4.00 4.72 8 −
1.792.73 8 1.55 0.68 9 −
3.90−
1.559 −
0.81−
3.4110 −
5.95−
5.8510 −
3.09−
7.5411 −
7.93−
10.1811 −
5.31−
11.7112 −
9.86−
14.5412 −
7.47−
15.9013 −
11.72−
18.9313 −
9.59−
20.1314 −
13.51−
23.3414 −
11.64−
24.3815 −
15.24−
27.7815 −
13.64−
28.6516 −
16.90−
32.2516 −
15.57−
32.9617 −
18.49−
36.7417 −
17.44−
37.30the blade section at height 660.4 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 15.29 30.21 1 16.38 29.26 2 12.06 27.20 2 15.33 25.01 3 9.39 23.68 3 13.53 21.03 4 7.18 19.86 4 11.39 17.22 5 5.23 15.89 5 9.17 13.45 6 3.37 11.89 6 6.99 9.66 7 1.48 7.90 7 4.88 5.83 8 −
0.333.88 8 2.77 2.00 9 −
2.14−
0.159 0.71 −
1.8510 −
3.94−
4.1910 −
1.29−
5.7411 −
5.71−
8.2311 −
3.27−
9.6412 −
7.44−
12.2912 −
5.22−
13.5513 −
9.14−
16.3713 −
7.16−
17.4714 −
10.80−
20.4614 −
9.07−
21.4115 −
12.44−
24.5615 −
10.94−
25.3616 −
14.02−
28.6816 −
12.76−
29.3317 −
15.55−
32.8217 −
14.54−
33.33
- 0.3 mm from series of points defining blade section configurations as defined in the following charts;
-
4. A turbine bucket which is formed in such a manner that the blade sectional configuration is twisted from a blade root portion to a blade tip side, characterized in that when assuming two axial directions in a blade section of the bucket along horizontal plane and taking one axial direction as X axis and the other axial direction perpendicular to X axis as Y axis, the blade sections at the following heights from the blade root portion of the turbine bucket are formed in a range of ±
- 0.3 mm from series of points defining blade section configurations as defined in the following charts;
the blade section at the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 53.99 −
24.711 52.62 −
25.772 50.02 −
17.172 47.80 −
20.243 45.14 −
10.183 42.25 −
15.444 39.48 −
3.824 36.20 −
11.295 33.07 1.81 5 29.78 −
7.736 25.97 6.52 6 23.07 −
4.777 18.29 10.21 7 16.11 −
2.458 10.15 12.74 8 8.95 −
0.839 1.73 14.06 9 1.66 −
0.0310 −
6.7913.87 10 −
5.68−
0.1211 −
15.1612.28 11 −
12.95−
1.0912 −
23.159.32 12 −
20.07−
2.8713 −
30.515.02 13 −
26.93−
5.4814 −
37.09−
0.4114 −
33.39−
8.9515 −
42.73−
6.7915 −
39.49−
13.0416 −
47.73−
13.7016 −
45.16−
17.6917 −
52.03−
21.0517 −
50.35−
22.87the blade section at height 38 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 52.43 −
21.701 51.11 −
22.822 48.76 −
14.192 46.67 −
17.103 43.96 −
7.343 41.19 −
12.374 38.16 −
1.334 35.07 −
8.495 31.56 3.80 5 28.58 −
5.286 24.37 8.05 6 21.79 −
2.787 16.65 11.25 7 14.74 −
1.108 8.50 13.13 8 7.56 −
0.199 0.16 13.65 9 0.32 0.05 10 −
8.1312.67 10 −
6.90−
0.5211 −
16.1710.36 11 −
14.00−
1.9312 −
23.766.87 12 −
20.90−
4.1313 −
30.702.21 13 −
27.50−
7.1114 −
36.86−
3.4414 −
33.70−
10.8515 −
42.24−
9.8315 −
39.44−
15.2616 −
47.01−
16.6916 −
44.74−
20.1917 −
51.12−
23.9717 −
49.55−
25.60the blade section at height 70 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 50.39 −
17.431 49.09 −
18.502 46.75 −
10.152 44.31 −
13.333 41.86 −
3.663 38.69 −
9.084 35.95 1.93 4 32.51 −
5.685 29.26 6.54 5 25.98 −
3.066 21.93 10.07 6 19.19 −
1.187 14.17 12.50 7 12.23 −
0.078 6.12 13.60 8 5.20 0.39 9 −
2.0113.24 9 −
1.840.08 10 −
9.9411.46 10 −
8.80−
1.0211 −
17.518.50 11 −
15.59−
2.8812 −
24.634.57 12 −
22.14−
5.4713 −
31.10−
0.3513 −
28.37−
8.7714 −
36.71−
6.2414 −
34.19−
12.7415 −
41.80−
12.5715 −
39.51−
17.3516 −
46.31−
19.3316 −
44.39−
22.4317 −
50.21−
26.4717 −
48.78−
27.94the blade section at height 106 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 48.84 −
14.221 47.62 −
15.332 45.04 −
7.242 42.70 −
10.443 39.98 −
1.133 36.97 −
6.554 33.93 4.03 4 30.70 −
3.595 27.17 8.18 5 24.12 −
1.426 19.83 11.20 6 17.34 0.03 7 12.10 13.00 7 10.46 0.77 8 4.16 13.30 8 3.53 0.83 9 −
3.6912.19 9 −
3.360.11 10 −
11.299.89 10 −
10.12−
1.4211 −
18.466.49 11 −
16.65−
3.7312 −
25.092.12 12 −
22.87−
6.7813 −
31.11−
3.0513 −
28.72−
10.5014 −
36.37−
8.9914 −
34.16−
14.7915 −
41.17−
15.3215 −
39.16−
19.5916 −
45.44−
22.0116 −
43.72−
24.8017 −
49.16−
29.0117 −
47.82−
30.39the blade section at height 138 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 47.48 −
10.881 46.31 −
12.022 43.52 −
4.192 41.24 −
7.473 38.40 1.65 3 35.40 −
3.974 32.26 6.39 4 29.07 −
1.475 25.35 9.92 5 22.46 0.19 6 17.96 12.29 6 15.72 1.14 7 10.29 13.46 7 8.92 1.42 8 2.54 13.02 8 2.14 0.85 9 −
5.0011.19 9 −
4.57−
0.2910 −
12.208.30 10 −
11.13−
2.1511 −
18.954.47 11 −
17.40−
4.7812 −
25.15−
0.2012 −
23.32−
8.1513 −
30.75−
5.5713 −
28.80−
12.1814 −
35.73−
11.5214 −
33.87−
16.7315 −
40.28−
17.8115 −
38.56−
21.6616 −
44.35−
24.4016 −
42.85−
26.9517 −
47.94−
31.2917 −
46.68−
32.57the blade section at height 170 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 46.46 −
8.071 45.38 −
9.282 42.08 −
1.902 40.10 −
5.143 36.54 3.23 3 34.14 −
2.074 30.18 7.33 4 27.77 0.01 5 23.27 10.41 5 21.19 1.27 6 15.97 12.37 6 14.51 1.84 7 8.44 13.03 7 7.81 1.79 8 0.94 12.07 8 1.16 0.96 9 −
6.299.87 9 −
5.36−
0.5710 −
13.106.60 10 −
11.65−
2.8711 −
19.482.54 11 −
17.62−
5.9212 −
25.32−
2.2612 −
23.21−
9.6113 −
30.53−
7.7413 −
28.41−
13.8314 −
35.32−
13.5814 −
33.26−
18.4615 −
39.66−
19.7715 −
37.75−
23.4316 −
43.52−
26.2716 −
41.87−
28.7217 −
46.88−
33.0517 −
45.58−
34.30the blade section at height 215 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 44.68 −
3.591 43.82 −
4.912 39.78 1.83 2 38.27 −
1.433 34.01 6.30 3 32.23 1.10 4 27.55 9.70 4 25.85 2.57 5 20.58 11.89 5 19.33 3.17 6 13.33 12.82 6 12.78 3.13 7 6.03 12.59 7 6.28 2.34 8 −
1.0610.87 8 −
0.070.75 9 −
7.798.02 9 −
6.25−
1.4110 −
14.024.23 10 −
12.15−
4.2511 −
19.83−
0.2111 −
17.68−
7.7512 −
25.17−
5.1912 −
22.83−
11.8013 −
29.98−
10.6813 −
27.66−
16.2214 −
34.41−
16.4814 −
32.18−
20.9515 −
38.43−
22.5715 −
36.40−
25.9616 −
42.01−
28.9416 −
40.29−
31.2317 −
45.13−
35.5417 −
43.84−
36.73the blade section at height 225 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 42.87 1.04 1 42.19 −
0.362 37.78 5.95 2 36.56 2.68 3 31.80 9.72 3 30.40 4.36 4 25.19 12.25 4 24.04 5.05 5 18.23 13.49 5 17.65 4.98 6 11.16 13.47 6 11.31 4.21 7 4.18 12.32 7 5.08 2.79 8 −
2.459.86 8 −
0.900.55 9 −
8.626.41 9 −
6.70−
2.1510 −
14.382.30 10 −
12.15−
5.4711 −
19.60−
2.4511 −
17.20−
9.3912 −
24.36−
7.6912 −
21.89−
13.7313 −
28.80−
13.1913 −
26.34−
18.3214 −
32.88−
18.9614 −
30.54−
23.1315 −
36.59−
24.9815 −
34.49−
28.1516 −
39.91−
31.2216 −
38.16−
33.3817 −
42.84−
37.6517 −
41.55−
38.80the blade section at height 300 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 40.93 6.66 1 40.66 5.15 2 35.55 10.84 2 34.66 6.83 3 29.24 13.45 3 28.45 7.41 4 22.54 14.73 4 22.23 7.15 5 15.71 14.78 5 16.06 6.20 6 8.98 13.66 6 10.03 4.64 7 2.56 11.37 7 4.16 2.57 8 −
3.568.37 8 −
1.520.00 9 −
9.154.47 9 −
6.90−
3.1410 −
14.29−
0.0110 −
11.98−
6.7411 −
19.06−
4.8811 −
16.72−
10.7812 −
23.50−
10.0412 −
21.12−
15.2013 −
27.59−
15.5013 −
25.23−
19.8814 −
31.33−
21.2014 −
29.04−
24.8115 −
34.70−
27.1215 −
32.59−
29.9316 −
37.74−
33.2216 −
35.98−
35.1617 −
40.43−
39.4917 −
39.14−
40.52the blade section at height 340 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 37.69 13.97 1 37.80 12.45 2 31.64 16.22 2 31.79 12.04 3 25.21 16.73 3 25.85 11.01 4 18.76 16.27 4 20.02 9.47 5 12.44 14.91 5 14.34 7.48 6 6.37 12.70 6 8.79 5.11 7 0.55 9.86 7 3.42 2.39 8 −
4.926.42 8 −
1.69−
0.809 −
9.962.37 9 −
6.66−
4.2210 −
14.57−
2.1710 −
11.36−
8.0011 −
18.80−
7.0711 −
15.71−
12.1612 −
22.72−
12.2112 −
19.74−
16.6513 −
26.37−
17.5513 −
23.50−
21.3514 −
29.70−
23.1014 −
27.08−
26.2115 −
32.68−
28.8415 −
30.43−
31.2216 −
35.38−
34.7216 −
33.57−
36.3617 −
37.79−
40.7217 −
36.49−
41.64the blade section at height 380 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 34.40 18.53 1 34.94 17.12 2 28.28 19.58 2 29.37 15.30 3 22.09 19.13 3 23.90 13.20 4 16.08 17.57 4 18.56 10.79 5 10.33 15.20 5 13.35 8.11 6 4.89 12.20 6 8.27 5.18 7 −
0.288.75 7 3.35 2.00 8 −
5.184.92 8 −
1.42−
1.419 −
9.720.67 9 −
5.97−
5.1010 −
13.91−
3.9210 −
10.29−
9.0611 −
17.81−
8.7611 −
14.36−
13.2812 −
21.42−
13.8312 −
18.16−
17.7413 −
24.72−
19.1013 −
21.68−
22.4214 −
27.69−
24.5614 −
24.96−
27.2815 −
30.34−
30.1915 −
28.03−
32.2716 −
32.75−
35.9216 −
30.92−
37.3717 −
34.93−
41.7417 −
33.62−
42.57the blade section at height 425 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y X Y 1 30.60 22.64 31.33 21.37 2 24.70 22.25 26.65 18.23 3 19.03 20.65 21.91 15.18 4 13.62 18.27 17.13 12.20 5 8.51 15.32 12.42 9.11 6 3.72 11.88 7.84 5.82 7 −
0.758.02 3.45 2.29 8 −
4.923.85 −
0.74−
1.479 −
8.90−
0.52−
4.72−
5.4610 −
−
12.47−
5.21−
8.55−
9.5911 −
15.76−
10.11−
12.18−
13.9012 −
18.83−
15.15−
15.57−
18.4013 −
21.69−
20.31−
18.73−
23.0714 −
24.33−
25.59−
21.68−
27.8715 −
26.73−
30.98−
24.46−
32.7716 −
28.90−
36.47−
27.08−
37.7617 −
30.82−
42.05−
29.54−
42.83the blade section at height 470 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y X Y 1 26.25 25.52 27.12 24.37 2 20.99 24.07 23.28 20.71 3 16.04 21.69 19.24 17.22 4 11.42 18.70 15.12 13.81 5 7.07 15.29 11.06 10.34 6 3.00 11.54 7.13 6.71 7 −
0.827.51 3.35 2.92 8 −
4.373.24 −
0.27−
1.039 −
7.72−
1.20−
3.72−
5.1510 −
10.76−
5.86−
7.04−
9.3711 −
13.58−
10.66−
10.18−
13.7312 −
16.24−
15.55−
13.16−
18.2113 −
18.73−
20.54−
15.96−
22.8014 −
21.05−
25.61−
18.60−
27.4915 −
23.20−
30.75−
21.12−
32.2516 −
25.17−
35.97−
23.50−
37.0817 −
26.96−
41.26−
25.76−
41.97the blade section at height 510 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y X Y 1 22.39 28.09 23.38 27.05 2 17.67 25.69 20.28 22.91 3 13.38 22.60 16.87 19.03 4 9.44 19.07 13.34 15.25 5 5.78 15.25 9.86 11.43 6 2.34 11.23 6.50 7.51 7 −
0.897.04 3.25 3.48 8 −
3.902.69 0.14 −
0.649 −
6.68−
1.82−
2.84−
4.8610 −
9.25−
6.44−
5.69−
9.1711 −
11.66−
11.15−
8.41−
13.5712 −
13.94−
15.92−
11.01−
18.0313 −
16.11−
20.75−
13.50−
22.5614 −
18.15−
25.63−
15.88−
27.1515 −
20.07−
30.56−
18.15−
31.7916 −
21.87−
35.54−
20.33−
36.4817 −
23.54−
40.56−
22.39−
41.21the blade section at height 550 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y X Y 1 18.75 29.44 19.92 28.64 2 14.59 26.71 17.67 24.27 3 11.03 23.23 14.95 20.19 4 7.89 19.37 11.99 16.27 5 5.01 15.31 9.06 12.33 6 2.34 11.11 6.24 8.31 7 −
0.156.80 3.50 4.23 8 −
2.512.42 0.87 0.09 9 −
4.78−
2.01−
1.66−
4.1210 −
6.98−
6.48−
4.09−
8.3911 −
9.10−
10.98−
6.43−
12.7012 −
11.14−
15.52−
8.71−
17.0513 −
13.09−
20.10−
10.92−
21.4414 −
14.97−
24.71−
13.05−
25.8615 −
16.76−
29.35−
15.12−
30.3116 −
18.47−
34.02−
17.11−
34.8017 −
20.10−
38.73−
19.03−
39.32the blade section at height 589 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y X Y 1 17.30 29.70 18.44 28.95 2 13.58 26.72 16.86 24.50 3 10.45 23.13 14.48 20.42 4 7.64 19.28 11.80 16.53 5 5.04 15.28 9.12 12.65 6 2.63 11.17 6.52 8.71 7 0.36 6.98 4.00 4.72 8 −
1.792.73 1.55 0.68 9 −
3.90−
1.55−
0.81−
3.4110 −
5.95−
5.85−
3.09−
7.5411 −
7.93−
10.18−
5.31−
11.7112 −
9.86−
14.54−
7.47−
15.9013 −
11.72−
18.93−
9.59−
20.1314 −
13.51−
23.34−
11.64−
24.3815 −
15.24−
27.78−
13.64−
28.6516 −
16.90−
32.25−
15.57−
32.9617 −
18.49−
36.74−
17.44−
37.30the blade section at height 625 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y X Y 1 16.24 30.11 17.35 29.20 2 12.85 27.01 16.11 24.82 3 9.96 23.44 14.04 20.78 4 7.44 19.61 11.63 16.92 5 5.16 15.62 9.17 13.09 6 3.01 11.56 6.78 9.22 7 0.94 7.46 4.46 5.31 8 −
1.053.33 2.18 1.38 9 −
3.00−
0.83−
0.03−
2.6010 −
4.93−
5.00−
2.17−
6.6111 −
6.80−
9.19−
4.27−
10.6512 −
8.63−
13.40−
6.33−
14.7013 −
10.41−
17.63−
8.35−
18.7714 −
12.14−
21.88−
10.34−
22.8715 −
13.82−
26.15−
12.27−
26.9816 −
15.45−
30.45−
14.15−
31.1317 −
17.01−
34.76−
15.97−
35.29the blade section at height 660.4 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y X Y 1 15.29 30.21 16.38 29.26 2 12.06 27.20 15.33 25.01 3 9.39 23.68 13.53 21.03 4 7.18 19.86 11.39 17.22 5 5.23 15.89 9.17 13.45 6 3.37 11.89 6.99 9.66 7 1.48 7.90 4.88 5.83 8 −
0.333.88 2.77 2.00 9 −
2.14−
0.150.71 −
1.8510 −
3.94−
4.19−
1.29−
5.7411 −
5.71−
8.23−
3.27−
9.6412 −
7.44−
12.29−
5.22−
13.5513 −
9.14−
16.37−
7.16−
17.4714 −
10.80−
20.46−
9.07−
21.4115 −
12.44−
24.56−
10.94−
25.3616 −
14.02−
28.68−
12.76−
29.3317 −
15.55−
32.82−
14.54−
33.33
- 0.3 mm from series of points defining blade section configurations as defined in the following charts;
-
5. A turbine bucket which is formed in such a manner that the blade sectional configuration is twisted from a blade root portion to a blade tip side, characterized in that when assuming two axial directions in a blade section of the bucket along horizontal plane and taking one axial direction as X axis and the other axial direction perpendicular to X axis as Y axis, the blade sections at the following heights from the blade root portion of the turbine bucket are formed in a range of ±
- 0.15 mm from series of points defining blade section configurations as defined in the following charts;
the blade section at the blade root portion of the turbine bucket being as follows, back side front side No. X Y X Y 1 53.99 −
24.7152.62 −
25.772 50.02 −
17.1747.80 −
20.243 45.14 −
10.1842.25 −
15.444 39.48 −
3.8236.20 −
11.295 33.07 1.81 29.78 −
7.736 25.97 6.52 23.07 −
4.777 18.29 10.21 16.11 −
2.458 10.15 12.74 8.95 −
0.839 1.73 14.06 1.66 −
0.0310 −
6.7913.87 −
5.68−
0.1211 −
15.1612.28 −
12.95−
1.0912 −
23.159.32 −
20.07−
2.8713 −
30.515.02 −
26.93−
5.4814 −
37.09−
0.41−
33.39−
8.9515 −
42.73−
6.79−
39.49−
13.0416 −
47.73−
13.70−
45.16−
17.6917 −
52.03−
21.05−
50.35−
22.87the blade section at height 106 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y X Y 1 48.84 −
14.2247.62 −
15.332 45.04 −
7.2442.70 −
10.443 39.98 −
1.1336.97 −
6.554 33.93 4.03 30.70 −
3.595 27.17 8.18 24.12 −
1.426 19.83 11.20 17.34 0.03 7 12.10 13.00 10.46 0.77 8 4.16 13.30 3.53 0.83 9 −
3.6912.19 −
3.360.11 10 −
11.299.89 −
10.12−
1.4211 −
18.466.49 −
16.65−
3.7312 −
25.092.12 −
22.87−
6.7813 −
31.11−
3.05−
28.72−
10.5014 −
36.37−
8.99−
34.16−
14.7915 −
41.17−
15.32−
39.16−
19.5916 −
45.44−
22.01−
43.72−
24.8017 −
49.16−
29.01−
47.82−
30.39the blade section at height 215 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y X Y 1 44.68 −
3.5943.82 −
4.912 39.78 1.83 38.2.7 −
1.433 34.01 6.30 32.23 1.10 4 27.55 9.70 25.85 2.57 5 20.58 11.89 19.33 3.17 6 13.33 12.82 12.78 3.13 7 6.03 12.59 6.28 2.34 8 −
1.0610.87 −
0.070.75 9 −
7.798.02 −
6.25−
1.4110 −
14.024.23 −
12.15−
4.2511 −
19.83−
0.21−
17.68−
7.7512 −
25.17−
5.19−
22.83−
11.8013 −
29.98−
10.68−
27.66−
16.2214 −
34.41−
16.48−
32.18−
20.9515 −
38.43−
22.57−
36.40−
25.9616 −
42.01−
28.94−
40.29−
31.2317 −
45.13−
35.54−
43.84−
36.73the blade section at height 340 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y X Y 1 37.69 13.97 37.80 12.45 2 31.64 16.22 31.79 12.04 3 25.21 16.73 25.85 11.01 4 18.76 16.27 20.02 9.47 5 12.44 14.91 14.34 7.48 6 6.37 12.70 8.79 5.11 7 0.55 9.86 3.42 2.39 8 −
4.926.42 −
1.69−
0.809 −
9.962.37 −
6.66−
4.2210 −
14.57−
2.17−
11.36−
8.0011 −
18.80−
7.07−
15.71−
12.1612 −
22.72−
12.21−
19.74−
16.6513 −
26.37−
17.55−
23.50−
21.3514 −
29.70−
23.10−
27.08−
26.2115 −
32.68−
28.84−
30.43−
31.2216 −
35.38−
34.72−
33.57−
36.3617 −
37.79−
40.72−
36.49−
41.64the blade section at height 470 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y X Y 1 26.25 25.52 27.12 24.37 2 20.99 24.07 23.28 20.71 3 16.04 21.69 19.24 17.22 4 11.42 18.70 15.12 13.81 5 7.07 15.29 11.06 10.34 6 3.00 11.54 7.13 6.71 7 −
0.827.51 3.35 2.92 8 −
4.373.24 −
0.27−
1.039 −
7.72−
1.20−
3.72−
5.1510 −
10.76−
5.86−
7.04−
9.3711 −
13.58−
10.66−
10.18−
13.7312 −
16.24−
15.55−
13.16−
18.2113 −
18.73−
20.54−
15.96−
22.8014 −
21.05−
25.61−
18.60−
27.4915 −
23.20−
30.75−
21.12−
32.2516 −
25.17−
35.97−
23.50−
37.0817 −
26.96−
41.26−
25.76−
41.97the blade section at height 589 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y X Y 1 17.30 29.70 18.44 28.95 2 13.58 26.72 16.86 24.50 3 10.45 23.13 14.48 20.42 4 7.64 19.28 11.80 16.53 5 5.04 15.28 9.12 12.65 6 2.63 11.17 6.52 8.71 7 0.36 6.98 4.00 4.72 8 −
1.792.73 1.55 0.68 9 −
3.90−
1.55−
0.81−
3.4110 −
5.95−
5.85−
3.09−
7.5411 −
7.93−
10.18−
5.31−
11.7112 −
9.86−
14.54−
7.47−
15.9013 −
11.72−
18.93−
9.59−
20.1314 −
13.51−
23.34−
11.64−
24.3815 −
15.24−
27.78−
13.64−
28.6516 −
16.90−
32.25−
15.57−
32.9617 −
18.49−
36.74−
17.44−
37.30the blade section at height 660.4 mm from the de root portion of the turbine bucket being as lows, back side front side No. X Y X Y 1 15.29 30.21 16.38 29.26 2 12.06 27.20 15.33 25.01 3 9.39 23.68 13.53 21.03 4 7.18 19.86 11.39 17.22 5 5.23 15.89 9.17 13.45 6 3.37 11.89 6.99 9.66 7 1.48 7.90 4.88 5.83 8 −
0.333.88 2.77 2.00 9 −
2.14−
0.150.71 −
1.8510 −
3.94−
4.19−
1.29−
5.7411 −
5.71−
8.23−
3.27−
9.6412 −
7.44−
12.29−
5.22−
13.5513 −
9.14−
16.37−
7.16−
17.4714 −
10.80−
20.46−
9.07−
21.4115 −
12.44−
24.56−
10.94−
25.3616 −
14.02−
28.68−
12.76−
29.3317 −
15.55−
32.82−
14.54−
33.33
- 0.15 mm from series of points defining blade section configurations as defined in the following charts;
-
6. A turbine bucket which is formed in such a manner that the blade sectional configuration is twisted from a blade root portion to a blade tip side, characterized in that when assuming two axial directions in a blade section of the bucket along horizontal plane and taking one axial direction as X axis and the other axial direction perpendicular to X axis as Y axis, the blade sections at the following heights from the blade root portion of the turbine bucket are formed in a range of ±
- 0.15 mm from series of points defining blade section configurations as defined in the following charts;
the blade section at the blade root portion of the turbine bucket being as follows, back side front side No. X Y X Y 1 53.99 24.71 52.62 −
25.772 50.02 17.17 47.80 −
20.243 45.14 10.18 42.25 −
15.444 39.48 3.82 36.20 −
11.295 33.07 1.81 29.78 −
7.736 25.97 6.52 23.07 −
4.777 18.29 10.21 16.11 −
2.458 10.15 12.74 8.95 −
0.839 1.73 14.06 1.66 −
0.0310 −
6.7913.87 −
5.68−
0.1211 −
15.1612.28 −
12.95−
1.0912 −
23.159.32 −
20.07−
2.8713 −
30.515.02 −
26.93−
5.4814 −
37.09−
0.41−
33.39−
8.9515 −
42.73−
6.79−
39.49−
13.0416 −
47.73−
13.70−
45.16−
17.6917 −
52.03−
21.05−
50.35−
22.87the blade section at height 38 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y X Y 1 52.43 −
21.7051.11 −
22.822 48.76 −
14.1946.67 −
17.103 43.96 −
7.3441.19 −
12.374 38.16 −
1.3335.07 −
8.495 31.56 3.80 28.58 −
5.286 24.37 8.05 21.79 −
2.787 16.65 11.25 14.74 −
1.108 8.50 13.13 7.56 −
0.199 0.16 13.65 0.32 −
0.0510 −
8.1312.67 −
6.90−
0.5211 −
16.1710.36 −
14.00−
1.9312 −
23.766.87 −
20.90−
4.1313 −
30.702.21 −
27.50−
7.1114 −
36.86−
3.44−
33.70−
10.8515 −
42.24−
9.83−
39.44−
15.2616 −
47.01−
16.69−
44.74−
20.1917 −
51.12−
23.97−
49.55−
25.60the blade section at height 70 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y X Y 1 50.39 −
17.4349.09 −
18.502 46.75 −
10.1544.31 −
13.333 41.86 −
3.6638.69 −
9.084 35.95 1.93 32.51 −
5.685 29.26 6.54 25.98 −
3.066 21.93 10.07 19.19 −
1.187 14.17 12.50 12.23 −
0.078 6.12 13.60 5.20 0.39 9 −
2.0113.24 −
1.840.08 10 −
9.9411.46 −
8.80−
1.0211 −
17.518.50 −
15.59−
2.8812 −
24.634.57 −
22.14−
5.4713 −
31.10−
0.35−
28.37−
8.7714 −
36.71−
6.24−
34.19−
12.7415 −
41.80−
12.57−
39.51−
17.3516 −
46.31−
19.33−
44.39−
22.4317 −
50.21−
26.47−
48.78−
27.94the blade section at height 106 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y X Y 1 48.84 14.22 47.62 −
15.332 45.04 7.24 42.70 −
10.443 39.98 1.13 36.97 −
6.554 33.93 4.03 30.70 −
3.595 27.17 8.18 24.12 −
1.426 19.83 11.20 17.34 0.03 7 12.10 13.00 10.46 0.77 8 4.16 13.30 3.53 0.83 9 −
3.6912.19 −
3.360.11 10 −
11.299.89 −
10.12−
1.4211 −
18.466.49 −
16.65−
3.7312 −
25.092.12 −
22.87−
6.7813 −
31.11−
3.05−
28.72−
10.5014 −
36.37−
8.99−
34.16−
14.7915 −
41.17−
15.32−
39.16−
19.5916 −
45.44−
22.01−
43.72−
24.8017 −
49.16−
29.01−
47.82−
30.39the blade section at height 138 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y X Y 1 47.48 −
10.8846.31 −
12.022 43.52 −
4.1941.24 −
7.473 38.40 1.65 35.40 −
3.974 32.26 6.39 29.07 −
1.475 25.35 9.92 22.46 0.19 6 17.96 12.29 15.72 1.14 7 10.29 13.46 8.92 1.42 8 2.54 13.02 2.14 0.85 9 −
5.0011.19 −
4.57−
0.2910 −
12.208.30 −
11.13−
2.1511 −
18.954.47 −
17.40−
4.7812 −
25.15−
0.20−
23.32−
8.1513 −
30.75−
5.57−
28.80−
12.1814 −
35.73−
11.52−
33.87−
16.7315 −
40.28−
17.81−
38.56−
21.6616 −
44.35−
24.40−
42.85−
26.9517 −
47.94−
31.29−
46.68−
32.57the blade section at height 170 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y X Y 1 46.46 −
8.0745.38 −
9.282 42.08 −
1.9040.10 −
5.143 36.54 3.23 34.14 −
2.074 30.18 7.33 27.77 0.01 5 23.27 10.41 21.19 1.27 6 15.97 12.37 14.51 1.84 7 8.44 13.03 7.81 1.79 8 0.94 12.07 1.16 0.96 9 −
6.299.87 −
5.36−
0.5710 −
13.106.60 −
11.65−
2.8711 −
19.482.54 −
17.62−
5.9212 −
25.32−
2.26−
23.21−
9.6113 −
30.53−
7.74−
28.41−
13.8314 −
35.32−
13.58−
33.26−
18.4615 −
39.66−
19.77−
37.75−
23.4316 −
43.52−
26.27−
41.87−
28.7217 −
46.88−
33.05−
45.58−
34.30the blade section at height 215 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 44.68 −
3.591 43.82 −
4.912 39.78 1.83 2 38.27 −
1.433 34.01 6.30 3 32.23 1.10 4 27.55 9.70 4 25.85 2.57 5 20.58 11.89 5 19.33 3.17 6 13.33 12.82 6 12.78 3.13 7 6.03 12.59 7 6.28 2.34 8 −
1.0610.87 8 −
0.070.75 9 −
7.798.02 9 −
6.25−
1.4110 −
14.024.23 10 −
12.15−
4.2511 −
19.83−
0.2111 −
17.68−
7.7512 −
25.17−
5.1912 −
22.83−
11.8013 −
29.98−
10.6813 −
27.66−
16.2214 −
34.41−
16.4814 −
32.18−
20.9515 −
38.43−
22.5715 −
36.40−
25.9616 −
42.01−
28.9416 −
40.29−
31.2317 −
45.13−
35.5417 −
43.84−
36.73the blade section at height 225 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 42.87 1.04 1 42.19 −
0.362 37.78 5.95 2 36.56 2.68 3 31.80 9.72 3 30.40 4.36 4 25.19 12.25 4 24.04 5.05 5 18.23 13.49 5 17.65 4.98 6 11.16 13.47 6 11.31 4.21 7 4.18 12.32 7 5.08 2.79 8 −
2.459.86 8 −
0.900.55 9 −
8.626.41 9 −
6.70−
2.1510 −
14.382.30 10 −
12.15−
5.4711 −
19.60−
2.4511 −
17.20−
9.3912 −
24.36−
7.6912 −
21.89−
13.7313 −
28.80−
13.1913 −
26.34−
18.3214 −
32.88−
18.9614 −
30.54−
23.1315 −
36.59−
24.9815 −
34.49−
28.1516 −
39.91−
31.2216 −
38.16−
33.3817 −
42.84−
37.6517 −
41.55−
38.80the blade section at height 300 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 40.93 6.66 1 40.66 5.15 2 35.55 10.84 2 34.66 6.83 3 29.24 13.45 3 28.45 7.41 4 22.54 14.73 4 22.23 7.15 5 15.71 14.78 5 16.06 6.20 6 8.98 13.66 6 10.03 4.64 7 2.56 11.37 7 4.16 2.57 8 −
3.568.37 8 −
1.520.00 9 −
9.154.47 9 −
6.90−
3.1410 −
14.29−
0.0110 −
11.98−
6.7411 −
19.06−
4.8811 −
16.72−
10.7812 −
23.50−
10.0412 −
21.12−
15.2013 −
27.59−
15.5013 −
25.23−
19.8814 −
31.33−
21.2014 −
29.04−
24.8115 −
34.70−
27.1215 −
32.59−
29.9316 −
37.74−
33.2216 −
35.98−
35.1617 −
40.43−
39.4917 −
39.14−
40.52the blade section at height 340 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 37.69 13.97 1 37.80 12.45 2 31.64 16.22 2 31.79 12.04 3 25.21 16.73 3 25.85 11.01 4 18.76 16.27 4 20.02 9.47 5 12.44 14.91 5 14.34 7.48 6 6.37 12.70 6 8.79 5.11 7 0.55 9.86 7 3.42 2.39 8 −
4.926.42 8 −
1.69−
0.809 −
9.962.37 9 −
6.66−
4.2210 −
14.57−
2.1710 −
11.36−
8.0011 −
18.80−
7.0711 −
15.71−
12.1612 −
22.72−
12.2112 −
19.74−
16.6513 −
26.37−
17.5513 −
23.50−
21.3514 −
29.70−
23.1014 −
27.08−
26.2115 −
32.68−
28.8415 −
30.43−
31.2216 −
35.38−
34.7216 −
33.57−
36.3617 −
37.79−
40.7217 −
36.49−
41.64the blade section at height 380 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 34.40 18.53 1 34.94 17.12 2 28.28 19.58 2 29.37 15.30 3 22.09 19.13 3 23.90 13.20 4 16.08 17.57 4 18.56 10.79 5 10.33 15.20 5 13.35 8.11 6 4.89 12.20 6 8.27 5.18 7 −
0.288.75 7 3.35 2.00 8 −
5.184.92 8 −
1.42−
1.419 −
9.720.67 9 −
5.97−
5.1010 −
13.91−
3.9210 −
10.29−
9.0611 −
17.81−
8.7611 −
14.36−
13.2812 −
21.42−
13.8312 −
18.16−
17.7413 −
24.72−
19.1013 −
21.68−
22.4214 −
27.69−
24.5614 −
24.96−
27.2815 −
30.34−
30.1915 −
28.03−
32.2716 −
32.75−
35.9216 −
30.92−
37.3717 −
34.93−
41.7417 −
33.62−
42.57the blade section at height 425 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 30.60 22.64 1 31.33 21.37 2 24.70 22.25 2 26.65 18.23 3 19.03 20.65 3 21.91 15.18 4 13.62 18.27 4 17.13 12.20 5 8.51 15.32 5 12.42 9.11 6 3.72 11.88 6 7.84 5.82 7 −
0.758.02 7 3.45 2.29 8 −
4.923.85 8 −
0.74−
1.479 −
8.90−
0.529 −
4.72−
5.4610 −
12.47−
5.2110 −
8.55−
9.5911 −
15.76−
10.1111 −
12.18−
13.9012 −
18.83−
15.1512 −
15.57−
18.4013 −
21.69−
20.3113 −
18.73−
23.0714 −
24.33−
25.5914 −
21.68−
27.8715 −
26.73−
30.9815 −
24.46−
32.7716 −
28.90−
36.4716 −
27.08−
37.7617 −
30.82−
42.0517 −
29.54−
42.83the blade section at height 470 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 26.25 25.52 1 27.12 24.37 2 20.99 24.07 2 23.28 20.71 3 16.04 21.69 3 19.24 17.22 4 11.42 18.70 4 15.12 13.81 5 7.07 15.29 5 11.06 10.34 6 3.00 11.54 6 7.13 6.71 7 −
0.827.51 7 3.35 2.92 8 −
4.373.24 8 −
0.27−
1.039 −
7.72−
1.209 −
3.72−
5.1510 −
10.76−
5.8610 −
7.04−
9.3711 −
13.58−
10.6611 −
10.18−
13.7312 −
16.24−
15.5512 −
13.16−
18.2113 −
18.73−
20.5413 −
15.96−
22.8014 −
21.05−
25.6114 −
18.60−
27.4915 −
23.20−
30.7515 −
21.12−
32.2516 −
25.17−
35.9716 −
23.50−
37.0817 −
26.96−
41.2617 −
25.76−
41.97the blade section at height 510 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 22.39 28.09 1 23.38 27.05 2 17.67 25.69 2 20.28 22.91 3 13.38 22.60 3 16.87 19.03 4 9.44 19.07 4 13.34 15.25 5 5.78 15.25 5 9.86 11.43 6 2.34 11.23 6 6.50 7.51 7 −
0.897.04 7 3.25 3.48 8 −
3.902.69 8 0.14 −
0.649 −
6.68−
1.829 −
2.84−
4.8610 −
9.25−
6.4410 −
5.69−
9.1711 −
11.66−
11.1511 −
8.41−
13.5712 −
13.94−
15.9212 −
11.01−
18.0313 −
16.11−
20.7513 −
13.50−
22.5614 −
18.15−
25.6314 −
15.88−
27.1515 −
20.07−
30.5615 −
18.15−
31.7916 −
21.87−
35.5416 −
20.33−
36.4817 −
23.54−
40.5617 −
22.39−
41.21the blade section at height 550 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 18.75 29.44 1 19.92 28.64 2 14.59 26.71 2 17.67 24.27 3 11.03 23.23 3 14.95 20.19 4 7.89 19.37 4 11.99 16.27 5 5.01 15.31 5 9.06 12.33 6 2.34 11.11 6 6.24 8.31 7 −
0.156.80 7 3.50 4.23 8 −
2.512.42 8 0.87 0.09 9 −
4.78−
2.019 −
1.66−
4.1210 −
6.98−
6.4810 −
4.09−
8.3911 −
9.10−
10.9811 −
6.43−
12.7012 −
11.14−
15.5212 −
8.71−
17.0513 −
13.09−
20.1013 −
10.92−
21.4414 −
14.97−
24.7114 −
13.05−
25.8615 −
16.76−
29.3515 −
15.12−
30.3116 −
18.47−
34.0216 −
17.11−
34.8017 −
20.10−
38.7317 −
19.03−
39.32the blade section at height 589 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 17.30 29.70 1 18.44 28.95 2 13.58 26.72 2 16.86 24.50 3 10.45 23.13 3 14.48 20.42 4 7.64 19.28 4 11.80 16.53 5 5.04 15.28 5 9.12 12.65 6 2.63 11.17 6 6.52 8.71 7 0.36 6.98 7 4.00 4.72 8 −
1.792.73 8 1.55 0.68 9 −
3.90−
1.559 −
0.81−
3.4110 −
5.95−
5.8510 −
3.09−
7.5411 −
7.93−
10.1811 −
5.31−
11.7112 −
9.86−
14.5412 −
7.47−
15.9013 −
11.72−
18.9313 −
9.59−
20.1314 −
13.51−
23.3414 −
11.64−
24.3815 −
15.24−
27.7815 −
13.64−
28.6516 −
16.90−
32.2516 −
15.57−
32.9617 −
18.49−
36.7417 −
17.44−
37.30the blade section at height 625 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 16.24 30.11 1 17.35 29.20 2 12.85 27.01 2 16.11 24.82 3 9.96 23.44 3 14.04 20.78 4 7.44 19.61 4 11.63 16.92 5 5.16 15.62 5 9.17 13.09 6 3.01 11.56 6 6.78 9.22 7 0.94 7.46 7 4.46 5.31 8 −
1.053.33 8 2.18 1.38 9 −
3.00−
0.839 −
0.03−
2.6010 −
4.93−
5.0010 −
2.17−
6.6111 −
6.80−
9.1911 −
4.27−
10.6512 −
8.63−
13.4012 −
6.33−
14.7013 −
10.41−
17.6313 −
8.35−
18.7714 −
12.14−
21.8814 −
10.34−
22.8715 −
13.82−
26.1515 −
12.27−
26.9816 −
15.45−
30.4516 −
14.15−
31.1317 −
17.01−
34.7617 −
15.97−
35.29the blade section at height 660.4 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 15.29 30.21 1 16.38 29.26 2 12.06 27.20 2 15.33 25.01 3 9.39 23.68 3 13.53 21.03 4 7.18 19.86 4 11.39 17.22 5 5.23 15.89 5 9.17 13.45 6 3.37 11.89 6 6.99 9.66 7 1.48 7.90 7 4.88 5.83 8 −
0.333.88 8 2.77 2.00 9 −
2.14−
0.159 0.71 −
1.8510 −
3.94−
4.1910 −
1.29−
5.7411 −
5.71−
8.2311 −
3.27−
9.6412 −
7.44−
12.2912 −
5.22−
13.5513 −
9.14−
16.3713 −
7.16−
17.4714 −
10.80−
20.4614 −
9.07−
21.4115 −
12.44−
24.5615 −
10.94−
25.3616 −
14.02−
28.6816 −
12.76−
29.3317 −
15.55−
32.8217 −
14.54−
33.33
- 0.15 mm from series of points defining blade section configurations as defined in the following charts;
-
7. A turbine bucket which is formed in such a manner that the blade sectional configuration is twisted from a blade root portion to a blade tip side, characterized in that when assuming two axial directions in a blade section of the bucket along horizontal plane and taking one axial direction as X axis and the other axial direction perpendicular to X axis as Y axis, the blade sections at the following heights from the blade root portion of the turbine bucket are formed in a range of ±
- 0.3 mm from series of points defining blade section configurations as defined in the following charts, and further being provided with a shroud which is formed at a tip portion of the bucket while being extended in the back side and in the front side of the bucket;
the blade section at the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 53.99 −
24.711 52.62 −
25.772 50.02 −
17.172 47.80 −
20.243 45.14 −
10.183 42.25 −
15.444 39.48 −
3.824 36.20 −
11.295 33.07 1.81 5 29.78 −
7.736 25.97 6.52 6 23.07 −
4.777 18.29 10.21 7 16.11 −
2.458 10.15 12.74 8 8.95 −
0.839 1.73 14.06 9 1.66 −
0.0310 −
6.7913.87 10 −
5.68−
0.1211 −
15.1612.28 11 −
12.95−
1.0912 −
23.159.32 12 −
20.07−
2.8713 −
30.515.02 13 −
26.93−
5.4814 −
37.09−
0.4114 −
33.39−
8.9515 −
42.73−
6.7915 −
39.49−
13.0416 −
47.73−
13.7016 −
45.16−
17.6917 −
52.03−
21.0517 −
50.35−
22.87the blade section at height 106 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 48.84 −
14.221 47.62 −
15.332 45.04 −
7.242 42.70 −
10.443 39.98 −
1.133 36.97 −
6.554 33.93 4.03 4 30.70 −
3.595 27.17 8.18 5 24.12 −
1.426 19.83 11.20 6 17.34 0.03 7 12.10 13.00 7 10.46 0.77 8 4.16 13.30 8 3.53 0.83 9 −
3.6912.19 9 −
3.360.11 10 −
11.299.89 10 −
10.12−
1.4211 −
18.466.49 11 −
16.65−
3.7312 −
25.092.12 12 −
22.87−
6.7813 −
31.11−
3.0513 −
28.72−
10.5014 −
36.37−
8.9914 −
34.16−
14.7915 −
41.17−
15.3215 −
39.16−
19.5916 −
45.44−
22.0116 −
43.72−
24.8017 −
49.16−
29.0117 −
47.82−
30.39the blade section at height 215 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 44.68 −
3.591 43.82 −
4.912 39.78 1.83 2 38.27 −
1.433 34.01 6.30 3 32.23 1.10 4 27.55 9.70 4 25.85 2.57 5 20.58 11.89 5 19.33 3.17 6 13.33 12.82 6 12.78 3.13 7 6.03 12.59 7 6.28 2.34 8 −
1.0610.87 8 −
0.070.75 9 −
7.798.02 9 −
6.25−
1.4110 −
14.024.23 10 −
12.15−
4.2511 −
19.83−
0.2111 −
17.68−
7.7512 −
25.17−
5.1912 −
22.83−
11.8013 −
29.98−
10.6813 −
27.66−
16.2214 −
34.41−
16.4814 −
32.18−
20.9515 −
38.43−
22.5715 −
36.40−
25.9616 −
42.01−
28.9416 −
40.29−
31.2317 −
45.13−
35.5417 −
43.84−
36.73the blade section at height 340 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 37.69 13.97 1 37.80 12.45 2 31.64 16.22 2 31.79 12.04 3 25.21 16.73 3 25.85 11.01 4 18.76 16.27 4 20.02 9.47 5 12.44 14.91 5 14.34 7.48 6 6.37 12.70 6 8.79 5.11 7 0.55 9.86 7 3.42 2.39 8 −
4.926.42 8 −
1.69−
0.809 −
9.962.37 9 −
6.66−
4.2210 −
14.57−
2.1710 −
11.36−
8.0011 −
18.80−
7.0711 −
15.71−
12.1612 −
22.72−
12.2112 −
19.74−
16.6513 −
26.37−
17.5513 −
23.50−
21.3514 −
29.70−
23.1014 −
27.08−
26.2115 −
32.68−
28.8415 −
30.43−
31.2216 −
35.38−
34.7216 −
33.57−
36.3617 −
37.79−
40.7217 −
36.49−
41.64the blade section at height 470 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 26.25 25.52 1 27.12 24.37 2 20.99 24.07 2 23.28 20.71 3 16.04 21.69 3 19.24 17.22 4 11.42 18.70 4 15.12 13.81 5 7.07 15.29 5 11.06 10.34 6 3.00 11.54 6 7.13 6.71 7 −
0.827.51 7 3.35 2.92 8 −
4.373.24 8 −
0.27−
1.039 −
7.72−
1.209 −
3.72−
5.1510 −
10.76−
5.8610 −
7.04−
9.3711 −
13.58−
10.6611 −
10.18−
13.7312 −
16.24−
15.5512 −
13.16−
18.2113 −
18.73−
20.5413 −
15.96−
22.8014 −
21.05−
25.6114 −
18.60−
27.4915 −
23.20−
30.7515 −
21.12−
32.2516 −
25.17−
35.9716 −
23.50−
37.0817 −
26.96−
41.2617 −
25.76−
41.97the blade section at height 589 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 17.30 29.70 1 18.44 28.95 2 13.58 26.72 2 16.86 24.50 3 10.45 23.13 3 14.48 20.42 4 7.64 19.28 4 11.80 16.53 5 5.04 15.28 5 9.12 12.65 6 2.63 11.17 6 6.52 8.71 7 0.36 6.98 7 4.00 4.72 8 1.79 2.73 8 1.55 0.68 9 3.90 1.55 9 −
0.81−
3.4110 −
5.95−
5.8510 −
3.09−
7.5411 −
7.93−
10.1811 −
5.31−
11.7112 −
9.86−
14.5412 −
7.47−
15.9013 −
11.72−
18.9313 −
9.59−
20.1314 −
13.51−
23.3414 −
11.64−
24.3815 −
15.24−
27.7815 −
13.64−
28.6516 −
16.90−
32.2516 −
15.57−
32.9617 −
18.49−
36.7417 −
17.44−
37.30the blade section at height 660.4 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 15.29 30.21 1 16.38 29.26 2 12.06 27.20 2 15.33 25.01 3 9.39 23.68 3 13.53 21.03 4 7.18 19.86 4 11.39 17.22 5 5.23 15.89 5 9.17 13.45 6 3.37 11.89 6 6.99 9.66 7 1.48 7.90 7 4.88 5.83 8 −
0.333.88 8 2.77 2.00 9 −
2.14−
0.159 0.71 −
1.8510 −
3.94−
4.1910 −
1.29−
5.7411 −
5.71−
8.2311 −
3.27−
9.6412 −
7.44−
12.2912 −
5.22−
13.5513 −
9.14−
16.3713 −
7.16−
17.4714 −
10.80−
20.4614 −
9.07−
21.4115 −
12.44−
24.5615 −
10.94−
25.3616 −
14.02−
28.6816 −
12.76−
29.3317 −
15.55−
32.8217 −
14.54−
33.33and further a shroud is provided which is formed at the tip portion of the bucket by respectively extending in back side and front side of the bucket.
- 0.3 mm from series of points defining blade section configurations as defined in the following charts, and further being provided with a shroud which is formed at a tip portion of the bucket while being extended in the back side and in the front side of the bucket;
-
8. A turbine bucket which is formed in such a manner that the blade sectional configuration is twisted from a blade root portion to a blade tip side, characterized in that when assuming two axial directions in a blade section of the bucket along horizontal plane and taking one axial direction as X axis and the other axial direction perpendicular to X axis as Y axis, the blade sections at the following heights from the blade root portion of the turbine bucket are formed in a range of ±
- 0.3 mm from series of points defining blade section configurations as defined in the following charts, and further being provided with a shroud which is formed at a tip portion of the bucket while being extended in the back side and in the front side of the bucket;
the blade section at the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 53.99 −
24.711 52.62 −
25.772 50.02 −
17.172 47.80 −
20.243 45.14 −
10.183 42.25 −
15.444 39.48 −
3.824 36.20 −
11.295 33.07 1.81 5 29.78 −
7.736 25.97 6.52 6 23.07 −
4.777 18.29 10.21 7 16.11 −
2.458 10.15 12.74 8 8.95 −
0.839 1.73 14.06 9 1.66 −
0.0310 −
6.7913.87 10 −
5.68−
0.1211 −
15.1612.28 11 −
12.95−
1.0912 −
23.159.32 12 −
20.07−
2.8713 −
30.515.02 13 −
26.93−
5.4814 −
37.09−
0.4114 −
33.39−
8.9515 −
42.73−
6.7915 −
39.49−
13.0416 −
47.73−
13.7016 −
45.16−
17.6917 −
52.03−
21.0517 −
50.35−
22.87the blade section at height 38 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y X Y 1 52.43 −
21.7051.11 −
22.822 48.76 −
14.1946.67 −
17.103 43.96 −
7.3441.19 −
12.374 38.16 −
1.3335.07 −
8.495 31.56 3.80 28.58 −
5.286 24.37 8.05 21.79 −
2.787 16.65 11.25 14.74 −
1.108 8.50 13.13 7.56 −
0.199 0.16 13.65 0.32 0.05 10 −
8.1312.67 −
6.90−
0.5211 −
16.1710.36 −
14.00−
1.9312 −
23.766.87 −
20.90−
4.1313 −
30.702.21 −
27.50−
7.1114 −
36.86−
3.44−
33.70−
10.8515 −
42.24−
9.83−
39.44−
15.2616 −
47.01−
16.69−
44.74−
20.1917 −
51.12−
23.97−
49.55−
25.60the blade section at height 70 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y X Y 1 50.39 −
17.4349.09 −
18.502 46.75 −
10.1544.31 −
13.333 41.86 −
3.6638.69 −
9.084 35.95 1.93 32.51 −
5.685 29.26 6.54 25.98 −
3.066 21.93 10.07 19.19 −
1.187 14.17 12.50 12.23 −
0.078 6.12 13.60 5.20 0.39 9 −
2.0113.24 −
1.840.08 10 −
9.9411.46 −
8.80−
1.0211 −
17.518.50 −
15.59−
2.8812 −
24.634.57 −
22.14−
5.4713 −
31.10−
0.35−
28.37−
8.7714 −
36.71−
6.24−
34.19−
12.7415 −
41.80−
12.57−
39.51−
17.3516 −
46.31−
19.33−
44.39−
22.4317 −
50.21−
26.47−
48.78−
27.94the blade section at height 106 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y X Y 1 48.84 −
14.2247.62 −
15.332 45.04 −
7.2442.70 −
10.443 39.98 −
1.1336.97 −
6.554 33.93 4.03 30.70 −
3.595 27.17 8.18 24.12 −
1.426 19.83 11.20 17.34 0.03 7 12.10 13.00 10.46 0.77 8 4.16 13.30 3.53 0.83 9 −
3.6912.19 −
3.360.11 10 −
11.299.89 −
10.12−
1.4211 −
18.466.49 −
16.65−
3.7312 −
25.092.12 −
22.87−
6.7813 −
31.11−
3.05−
28.72−
10.5014 −
36.37−
8.99−
34.16−
14.7915 −
41.17−
15.32−
39.16−
19.5916 −
45.44−
22.01−
43.72−
24.8017 −
49.16−
29.01−
47.82−
30.39the blade section at height 138 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y X Y 1 47.48 −
10.8846.31 −
12.022 43.52 −
4.1941.24 −
7.473 38.40 1.65 35.40 −
3.974 32.26 6.39 29.07 −
1.475 25.35 9.92 22.46 0.19 6 17.96 12.29 15.72 1.14 7 10.29 13.46 8.92 1.42 8 2.54 13.02 2.14 0.85 9 −
5.0011.19 −
4.57−
0.2910 −
12.208.30 −
11.13−
2.1511 −
18.954.47 −
17.40−
4.7812 −
25.15−
0.20−
23.32−
8.1513 −
30.75−
5.57−
28.80−
12.1814 −
35.73−
11.52−
33.87−
16.7315 −
40.28−
17.81−
38.56−
21.6616 −
44.35−
24.40−
42.85−
26.9517 −
47.94−
31.29−
46.68−
32.57the blade section at height 170 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y X Y 1 46.46 −
8.0745.38 −
9.282 42.08 −
1.9040.10 −
5.143 36.54 3.23 34.14 −
2.074 30.18 7.33 27.77 0.01 5 23.27 10.41 21.19 1.27 6 15.97 12.37 14.51 1.84 7 8.44 13.03 7.81 1.79 8 0.94 12.07 1.16 0.96 9 −
6.299.87 −
5.36−
0.5710 −
13.106.60 −
11.65−
2.8711 −
19.482.54 −
17.62−
5.9212 −
25.32−
2.26−
23.21−
9.6113 −
30.53−
7.74−
28.41−
13.8314 −
35.32−
13.58−
33.26−
18.4615 −
39.66−
19.77−
37.75−
23.4316 −
43.52−
26.27−
41.87−
28.7217 −
46.88−
33.05−
45.58−
34.30the blade section at height 215 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y X Y 1 44.68 −
3.5943.82 −
4.912 39.78 1.83 38.27 −
1.433 34.01 6.30 32.23 1.10 4 27.55 9.70 25.85 2.57 5 20.58 11.89 19.33 3.17 6 13.33 12.82 12.78 3.13 7 6.03 12.59 6.28 2.34 8 −
1.0610.87 −
0.070.75 9 −
7.798.02 −
6.25−
1.4110 −
14.024.23 −
12.15−
4.2511 −
19.83−
0.21−
17.68−
7.7512 −
25.17−
5.19−
22.83−
11.8013 −
29.98−
10.68−
27.66−
16.2214 −
34.41−
16.48−
32.18−
20.9515 −
38.43−
22.57−
36.40−
25.9616 −
42.01−
28.94−
40.29−
31.2317 −
45.13−
35.54−
43.84−
36.73the blade section at height 255 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y X Y 1 42.87 1.04 42.19 −
0.362 37.78 5.95 36.56 2.68 3 31.80 9.72 30.40 4.36 4 25.19 12.25 24.04 5.05 5 18.23 13.49 17.65 4.98 6 11.16 13.47 11.31 4.21 7 4.18 12.32 5.08 2.79 8 −
2.459.86 −
0.900.55 9 −
8.626.41 −
6.70−
2.1510 −
14.382.30 −
12.15−
5.4711 −
19.60−
2.45−
17.20−
9.3912 −
24.36−
7.69−
21.89−
13.7313 −
28.80−
13.19−
26.34−
18.3214 −
32.88−
18.96−
30.54−
23.1315 −
36.59−
24.98−
34.49−
28.1516 −
39.91−
31.22−
38.16−
33.3817 −
42.84−
37.65−
41.55−
38.80the blade section at height 300 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y X Y 1 40.93 6.66 40.66 5.15 2 35.55 10.84 34.66 6.83 3 29.24 13.45 28.45 7.41 4 22.54 14.73 22.23 7.15 5 15.71 14.78 16.06 6.20 6 8.98 13.66 10.03 4.64 7 2.56 11.37 4.16 2.57 8 −
3.568.37 −
1.520.00 9 −
9.154.47 −
6.90−
3.1410 −
14.29−
0.01−
11.98−
6.7411 −
19.06−
4.88−
16.72−
10.7812 −
23.50−
10.04−
21.12−
15.2013 −
27.59−
15.50−
25.23−
19.8814 −
31.33−
21.20−
29.04−
24.8115 −
34.70−
27.12−
32.59−
29.9316 −
37.74−
33.22−
35.98−
35.1617 −
40.43−
39.49−
39.14−
40.52the blade section at height 340 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y X Y 1 37.69 13.97 37.80 12.45 2 31.64 16.22 31.79 12.04 3 25.21 16.73 25.85 11.01 4 18.76 16.27 20.02 9.47 5 12.44 14.91 14.34 7.48 6 6.37 12.70 8.79 5.11 7 0.55 9.86 3.42 2.39 8 −
4.926.42 −
1.69−
0.809 −
9.962.37 −
6.66−
4.2210 −
14.57−
2.17−
11.36−
8.0011 −
18.80−
7.07−
15.71−
12.1612 −
22.72−
12.21−
19.74−
16.6513 −
26.37−
17.55−
23.50−
21.3514 −
29.70−
23.10−
27.08−
26.2115 −
32.68−
28.84−
30.43−
31.2216 −
35.38−
34.72−
33.57−
36.3617 −
37.79−
40.72−
36.49−
41.64the blade section at height 380 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y X Y 1 34.40 18.53 34.94 17.12 2 28.28 19.58 29.37 15.30 3 22.09 19.13 23.90 13.20 4 16.08 17.57 18.56 10.79 5 10.33 15.20 13.35 8.11 6 4.89 12.20 8.27 5.18 7 −
0.288.75 3.35 2.00 8 −
5.184.92 −
1.42−
1.419 −
9.720.67 −
5.97−
5.1010 −
13.91−
3.92−
10.29−
9.0611 −
17.81−
8.76−
14.36−
13.2812 −
21.42−
13.83−
18.16−
17.7413 −
24.72−
19.10−
21.68−
22.4214 −
27.69−
24.56−
24.96−
27.2815 −
30.34−
30.19−
28.03−
32.2716 −
32.75−
35.92−
30.92−
37.3717 −
34.93−
41.74−
33.62−
42.57the blade section at height 425 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y X Y 1 30.60 22.64 31.33 21.37 2 24.70 22.25 26.65 18.23 3 19.03 20.65 21.91 15.18 4 13.62 18.27 17.13 12.20 5 8.51 15.32 12.42 9.11 6 3.72 11.88 7.84 5.82 7 −
0.758.02 3.45 2.29 8 −
4.923.85 −
0.74−
1.479 −
8.90−
0.52−
4.72−
5.4610 −
12.47−
5.21−
8.55−
9.5911 −
15.76−
10.11−
12.18−
13.9012 −
18.83−
15.15−
15.57−
18.4013 −
21.69−
20.31−
18.73−
23.0714 −
24.33−
25.59−
21.68−
27.8715 −
26.73−
30.98−
24.46−
32.7716 −
28.90−
36.47−
27.08−
37.7617 −
30.82−
42.05−
29.54−
42.83the blade section at height 470 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y X Y 1 26.25 25.52 27.12 24.37 2 20.99 24.07 23.28 20.71 3 16.04 21.69 19.24 17.22 4 11.42 18.70 15.12 13.81 5 7.07 15.29 11.06 10.34 6 3.00 11.54 7.13 6.71 7 −
0.827.51 3.35 2.92 8 −
4.373.24 −
0.27−
1.039 −
7.72−
1.20−
3.72−
5.1510 −
10.76−
5.86−
7.04−
9.3711 −
13.58−
10.66−
10.18−
13.7312 −
16.24−
15.55−
13.16−
18.2113 −
18.73−
20.54−
15.96−
22.8014 −
21.05−
25.61−
18.60−
27.4915 −
23.20−
30.75−
21.12−
32.2516 −
25.17−
35.97−
23.50−
37.0817 −
26.96−
41.26−
25.76−
41.97the blade section at height 510 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y X Y 1 22.39 28.09 23.38 27.05 2 17.67 25.69 20.28 22.91 3 13.38 22.60 16.87 19.03 4 9.44 19.07 13.34 15.25 5 5.78 15.25 9.86 11.43 6 2.34 11.23 6.50 7.51 7 −
0.897.04 3.25 3.48 8 −
3.902.69 0.14 −
0.649 −
6.68−
1.82−
2.84−
4.8610 −
9.25−
6.44−
5.69−
9.1711 −
11.66−
11.15−
8.41−
13.5712 −
13.94−
15.92−
11.01−
18.0313 −
16.11−
20.75−
13.50−
22.5614 −
18.15−
25.63−
15.88−
27.1515 −
20.07−
30.56−
18.15−
31.7916 −
21.87−
35.54−
20.33−
36.4817 −
23.54−
40.56−
22.39−
41.21the blade section at height 550 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y X Y 1 18.75 29.44 19.92 28.64 2 14.59 26.71 17.67 24.27 3 11.03 23.23 14.95 20.19 4 7.89 19.37 11.99 16.27 5 5.01 15.31 9.06 12.33 6 2.34 11.11 6.24 8.31 7 −
0.156.80 3.50 4.23 8 −
2.512.42 0.87 0.09 9 −
4.78−
2.01−
1.66−
4.1210 −
6.98−
6.48−
4.09−
8.3911 −
9.10−
10.98−
6.43−
12.7012 −
11.14−
15.52−
8.71−
17.0513 −
13.09−
20.10−
10.92−
21.4414 −
14.97−
24.71−
13.05−
25.8615 −
16.76−
29.35−
15.12−
30.3116 −
18.47−
34.02−
17.11−
34.8017 −
20.10−
38.73−
19.03−
39.32the blade section at height 589 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y X Y 1 17.30 29.70 18.44 28.95 2 13.58 26.72 16.86 24.50 3 10.45 23.13 14.48 20.42 4 7.64 19.28 11.80 16.53 5 5.04 15.28 9.12 12.65 6 2.63 11.17 6.52 8.71 7 0.36 6.98 4.00 4.72 8 −
1.792.73 1.55 0.68 9 −
3.90−
1.55−
0.81−
3.4110 −
5.95−
5.85−
3.09−
7.5411 −
7.93−
10.18−
5.31−
11.7112 −
9.86−
14.54−
7.47−
15.9013 −
11.72−
18.93−
9.59−
20.1314 −
13.51−
23.34−
11.64−
24.3815 −
15.24−
27.78−
13.64−
28.6516 −
16.90−
32.25−
15.57−
32.9617 −
18.49−
36.74−
17.44−
37.30the blade section at height 625 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y X Y 1 16.24 30.11 17.35 29.20 2 12.85 27.01 16.11 24.82 3 9.96 23.44 14.04 20.78 4 7.44 19.61 11.63 16.92 5 5.16 15.62 9.17 13.09 6 3.01 11.56 6.78 9.22 7 0.94 7.46 4.46 5.31 8 −
1.053.33 2.18 1.38 9 −
3.00−
0.83−
0.03−
2.6010 −
4.93−
5.00−
2.17−
6.6111 −
6.80−
9.19−
4.27−
10.6512 −
8.63−
13.40−
6.33−
14.7013 −
10.41−
17.63−
8.35−
18.7714 −
12.14−
21.88−
10.34−
22.8715 −
13.82−
26.15−
12.27−
26.9816 −
15.45−
30.45−
14.15−
31.1317 −
17.01−
34.76−
15.97−
35.29the blade section at height 660.4 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y X Y 1 15.29 30.21 16.38 9.26 2 12.06 27.20 15.33 25.01 3 9.39 23.68 13.53 21.03 4 7.18 19.86 11.39 17.22 5 5.23 15.89 9.17 13.45 6 3.37 11.89 6.99 9.66 7 1.48 7.90 4.88 5.83 8 −
0.333.88 2.77 2.00 9 −
2.14−
0.150.71 −
1.8510 −
3.94−
4.19−
1.29−
5.7411 −
5.71−
8.23−
3.27−
9.6412 −
7.44−
12.29−
5.22−
13.5513 −
9.14−
16.37−
7.16−
17.4714 −
10.80−
20.46−
9.07−
21.4115 −
12.44−
24.56−
10.94−
25.3616 −
14.02−
28.68−
12.76−
29.3317 −
15.55−
32.82−
14.54−
33.33and further a shroud is provided which is formed at the tip portion of the bucket by respectively extending in back side and front side of the bucket.
- 0.3 mm from series of points defining blade section configurations as defined in the following charts, and further being provided with a shroud which is formed at a tip portion of the bucket while being extended in the back side and in the front side of the bucket;
-
9. A turbine bucket which is formed in such a manner that the blade sectional configuration is twisted from a blade root portion to a blade tip side, characterized in that when assuming two axial directions in a blade section of the bucket along horizontal plane and taking one axial direction as X axis and the other axial direction perpendicular to X axis as Y axis, the blade sections at the following heights from the blade root portion of the turbine bucket are formed in a range of ±
- 0.3 mm from series of points defining blade section configurations as defined in the following charts;
the blade section at the blade root portion of the turbine bucket being as follows, back side front side No. X Y X Y 1 53.99 24.79 51.87 −
26.292 50.71 16.86 47.39 −
20.603 45.93 9.73 42.02 −
15.744 40.22 3.32 36.04 11.64 5 33.75 2.32 29.68 −
8.186 26.58 7.05 23.04 −
5.297 18.83 10.75 16.16 −
3.028 10.63 13.28 9.09 −
1.459 2.14 14.59 1.88 −
0.7010 −
6.4414.38 −
5.36−
0.8211 −
14.8712.76 −
12.54−
1.7912 −
22.929.77 −
19.56−
3.5813 −
30.335.43 −
26.32−
6.1714 −
36.95−
0.04−
32.71−
9.6015 −
42.63−
6.48−
38.72−
13.6416 −
47.46−
13.43−
44.51−
18.2417 −
51.73−
20.85−
49.97−
23.33the blade section at height 106 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y X Y 1 49.13 −
14.1647.52 15.62 2 45.29 7.07 42.51 −
10.673 40.19 0.92 36.82 −
6.814 34.11 4.27 30.59 −
3.875 27.30 8.44 24.04 −
1.716 19.92 11.48 17.30 −
0.277 12.14 13.29 10.44 0.47 8 4.15 13.60 3.54 0.53 9 −
3.7612.48 −
3.31−
0.1910 −
11.4010.17 −
10.04−
1.7111 −
18.616.75 −
16.54−
4.0112 −
25.282.36 −
22.73−
7.0413 −
31.32−
2.84−
28.54−
10.7514 −
36.61−
8.80−
33.96−
15.0215 −
41.41−
15.15−
38.94−
19.8016 −
45.70−
21.86−
43.51−
24.9917 −
49.31−
28.89−
47.71−
30.56the blade section at height 170 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y X Y 1 46.60 −
8.0445.34 −
9.432 42.19 −
1.8340.02 −
5.283 36.62 3.32 34.09 −
2.234 30.25 7.44 27.74 −
0.155 23.32 10.52 21.17 1.11 6 16.00 12.48 14.51 1.68 7 8.44 13.15 7.82 1.63 8 0.91 12.18 1.19 0.80 9 −
6.349.97 −
5.32−
0.7310 −
13.176.70 −
11.60−
3.0211 −
19.572.63 −
17.55−
6.0612 −
25.42−
2.18−
23.13−
9.7413 −
30.64−
7.67−
28.32−
13.9614 −
35.44−
13.52−
33.16−
18.5815 −
39.78−
19.72−
37.65−
23.5416 −
43.64−
26.23−
41.76−
28.8217 −
47.01−
33.01−
45.46−
34.39the blade section at height 300 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 40.93 6.66 1 40.66 5.15 2 35.55 10.84 2 34.66 6.83 3 29.24 13.45 3 28.45 7.41 4 22.54 14.73 4 22.23 7.15 5 15.71 14.78 5 16.06 6.20 6 8.98 13.66 6 10.03 4.64 7 2.56 11.37 7 4.16 2.57 8 −
3.568.37 8 −
1.520.00 9 −
9.154.47 9 −
6.90−
3.1410 −
14.29−
0.0110 −
11.98−
6.7411 −
19.06−
4.8811 −
16.72−
10.7812 −
23.50−
10.0412 −
21.12−
15.2013 −
27.59−
15.5013 −
25.23−
19.8814 −
31.33−
21.2014 −
29.04−
24.8115 −
34.70−
27.1215 −
32.59−
29.9316 −
37.74−
33.2216 −
35.98−
35.1617 −
40.43−
39.4917 −
39.14−
40.52the blade section at height 425 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 30.60 22.64 1 31.33 21.37 2 24.70 22.25 2 26.65 18.23 3 19.03 20.65 3 21.91 15.18 4 13.62 18.27 4 17.13 12.20 5 8.51 15.32 5 12.42 9.11 6 3.72 11.88 6 7.84 5.82 7 −
0.758.02 7 3.45 2.29 8 −
4.923.85 8 −
0.74−
1.479 −
8.90−
0.529 −
4.72−
5.4610 −
12.47−
5.2110 −
8.55−
9.5911 −
15.76−
10.1111 −
12.18−
13.9012 −
18.83−
15.1512 −
15.57−
18.4013 −
21.69−
20.3113 −
18.73−
23.0714 −
24.33−
25.5914 −
21.68−
27.8715 −
26.73−
30.9815 −
24.46−
32.7716 −
28.90−
36.4716 −
27.08−
37.7617 −
30.82−
42.0517 −
29.54−
42.83the blade section at height 550 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 18.75 29.44 1 19.92 28.64 2 14.59 26.71 2 17.67 24.27 3 11.03 23.23 3 14.95 20.19 4 7.89 19.37 4 11.99 16.27 5 5.01 15.31 5 9.06 12.33 6 2.34 11.11 6 6.24 8.31 7 −
0.156.80 7 3.50 4.23 8 −
2.512.42 8 0.87 0.09 9 −
4.78−
2.019 −
1.66−
4.1210 −
6.98−
6.4810 −
4.09−
8.3911 −
9.10−
10.9811 −
6.43−
12.7012 −
11.14−
15.5212 −
8.71−
17.0513 −
13.09−
20.1013 −
10.92−
21.4414 −
14.97−
24.7114 −
13.05−
25.8615 −
16.76−
29.3515 −
15.12−
30.3116 −
18.47−
34.0216 −
17.11−
34.8017 −
20.10−
38.7317 −
19.03−
39.32the blade section at height 660.4 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 15.29 30.21 1 16.38 29.26 2 12.06 27.20 2 15.33 25.01 3 9.39 23.68 3 13.53 21.03 4 7.18 19.86 4 11.39 17.22 5 5.23 15.89 5 9.17 13.45 6 3.37 11.89 6 6.99 9.66 7 1.48 7.90 7 4.88 5.83 8 −
0.333.88 8 2.77 2.00 9 −
2.14−
0.159 0.71 −
1.8510 −
3.94−
4.1910 −
1.29−
5.7411 −
5.71−
8.2311 −
3.27−
9.6412 −
7.44−
12.2912 −
5.22−
13.5513 −
9.14−
16.3713 −
7.16−
17.4714 −
10.80−
20.4614 −
9.07−
21.4115 −
12.44−
24.5615 −
10.94−
25.3616 −
14.02−
28.6816 −
12.76−
29.3317 −
15.55−
32.8217 −
14.54−
33.33
- 0.3 mm from series of points defining blade section configurations as defined in the following charts;
-
10. A turbine bucket which is formed in such a manner that the blade sectional configuration is twisted from a blade root portion to a blade tip side, characterized in that when assuming two axial directions in a blade section of the bucket along horizontal plane and taking one axial direction as X axis and the other axial direction perpendicular to X axis as Y axis, the blade sections at the following heights from the blade root portion of the turbine bucket are formed in a range of ±
- 0.3 mm from series of points defining blade section configurations as defined in the following charts;
the blade section at height 0 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 53.99 −
24.791 51.87 −
26.292 50.71 −
16.862 47.39 −
20.603 45.93 −
9.733 42.02 −
15.744 40.22 −
3.324 36.04 −
11.645 33.75 2.32 5 29.68 −
8.186 26.58 7.05 6 23.04 −
5.297 18.83 10.75 7 16.16 −
3.028 10.63 13.28 8 9.09 −
1.459 2.14 14.59 9 1.88 −
0.7010 −
6.4414.38 10 −
5.36−
0.8211 −
14.8712.76 11 −
12.54−
1.7912 −
22.929.77 12 −
19.56−
3.5813 −
30.335.43 13 −
26.32−
6.1714 −
36.95−
0.0414 −
32.71−
9.6015 −
42.63−
6.4815 −
38.72−
13.6416 −
47.46−
13.4316 −
44.51−
18.2417 −
51.73−
20.8517 −
49.97−
23.33the blade section at height 70 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 50.76 −
17.391 48.96 −
18.882 47.08 −
9.972 44.05 −
13.633 42.14 −
3.423 38.49 −
9.414 36.19 2.21 4 32.35 −
6.045 29.45 6.85 5 25.85 −
3.436 22.07 10.41 6 19.11 −
1.577 14.26 12.85 7 12.19 −
0.468 6.13 13.96 8 5.20 −
0.019 −
2.0613.60 9 −
1.80−
0.3210 −
10.0511.80 10 −
8.72−
1.4111 −
17.678.83 11 −
15.47−
3.2612 −
24.844.87 12 −
21.99−
5.8313 −
31.36−
0.0813 −
28.17−
9.1114 −
36.99−
6.0114 −
33.96−
13.0615 −
42.11−
12.3715 −
39.27−
17.6416 −
46.54−
19.1516 −
44.26−
22.7017 −
50.35−
26.3217 −
48.79−
28.18the blade section at height 138 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 47.67 −
10.851 46.26 −
12.232 43.68 −
4.102 41.12 −
7.663 38.54 1.77 3 35.31 −
4.174 32.37 6.53 4 29.01 −
1.685 25.43 10.08 5 22.42 −
0.036 18.01 12.46 6 15.70 0.92 7 10.30 13.63 7 8.92 1.20 8 2.51 13.19 8 2.16 0.63 9 −
5.0611.36 9 −
4.53−
0.5110 −
12.298.46 10 −
11.06−
2.3611 −
19.064.61 11 −
17.31−
4.9812 −
25.28−
0.0712 −
23.21−
8.3413 −
30.89−
5.4613 −
28.68−
12.3614 −
35.88−
11.4214 −
33.73−
16.8915 −
40.44−
17.7215 −
38.41−
21.8116 −
44.53−
24.3316 −
42.69−
27.0917 −
48.12−
31.2217 −
46.56−
32.70the blade section at height 215 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 44.68 −
3.591 43.82 −
4.912 39.78 1.83 2 38.27 −
1.433 34.01 6.30 3 32.23 1.10 4 27.55 9.70 4 25.85 2.57 5 20.58 11.89 5 19.33 3.17 6 13.33 12.82 6 12.78 3.13 7 6.03 12.59 7 6.28 2.34 8 −
1.0610.87 8 −
0.070.75 9 −
7.798.02 9 −
6.25−
1.4110 −
14.024.23 10 −
12.15−
4.2511 −
19.83−
0.2111 −
17.68−
7.7512 −
25.17−
5.1912 −
22.83−
11.8013 −
29.98−
10.6813 −
27.66−
16.2214 −
34.41−
16.4814 −
32.18−
20.9515 −
38.43−
22.5715 −
36.40−
25.9616 −
42.01−
28.9416 −
40.29−
31.2317 −
45.13−
35.5417 −
43.84−
36.73the blade section at height 300 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 40.93 6.66 1 40.66 5.15 2 35.55 10.84 2 34.66 6.83 3 29.24 13.45 3 28.45 7.41 4 22.54 14.73 4 22.23 7.15 5 15.71 14.78 5 16.06 6.20 6 8.98 13.66 6 10.03 4.64 7 2.56 11.37 7 4.16 2.57 8 −
3.568.37 8 −
1.520.00 9 −
9.154.47 9 −
6.90−
3.1410 −
14.29−
0.0110 −
11.98−
6.7411 −
19.06−
4.8811 −
16.72−
10.7812 −
23.50−
10.0412 −
21.12−
15.2013 −
27.59−
15.5013 −
25.23−
19.8814 −
31.33−
21.2014 −
29.04−
24.8115 −
34.70−
27.1215 −
32.59−
29.9316 −
37.74−
33.2216 −
35.98−
35.1617 −
40.43−
39.4917 −
39.14−
40.52the blade section at height 380 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 34.40 18.53 1 34.94 17.12 2 28.28 19.58 2 29.37 15.30 3 22.09 19.13 3 23.90 13.20 4 16.08 17.57 4 18.56 10.79 5 10.33 15.20 5 13.35 8.11 6 4.89 12.20 6 8.27 5.18 7 −
0.288.75 7 3.35 2.00 8 −
5.184.92 8 −
1.42−
1.419 −
9.720.67 9 −
5.97−
5.1010 −
13.91−
3.9210 −
10.29−
9.0611 −
17.81−
8.7611 −
14.36−
13.2812 −
21.42−
13.8312 −
18.16−
17.7413 −
24.72−
19.1013 −
21.68−
22.4214 −
27.69−
24.5614 −
24.96−
27.2815 −
30.34−
30.1915 −
28.03−
32.2716 −
32.75−
35.9216 −
30.92−
37.3717 −
34.93−
41.7417 −
33.62−
42.57the blade section at height 470 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 26.25 25.52 1 27.12 24.37 2 20.99 24.07 2 23.28 20.71 3 16.04 21.69 3 19.24 17.22 4 11.42 18.70 4 15.12 13.81 5 7.07 15.29 5 11.06 10.34 6 3.00 11.54 6 7.13 6.71 7 −
0.827.51 7 3.35 2.92 8 −
4.373.24 8 −
0.27−
1.039 −
7.72−
1.209 −
3.72−
5.1510 −
10.76−
5.8610 −
7.04−
9.3711 −
13.58−
10.6611 −
10.18−
13.7312 −
16.24−
15.5512 −
13.16−
18.2113 −
18.73−
20.5413 −
15.96−
22.8014 −
21.05−
25.6114 −
18.60−
27.4915 −
23.20−
30.7515 −
21.12−
32.2516 −
25.17−
35.9716 −
23.50−
37.0817 −
26.96−
41.2617 −
25.76−
41.97the blade section at height 625 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 16.24 30.11 1 17.35 29.20 2 12.85 27.01 2 16.11 24.82 3 9.96 23.44 3 14.04 20.78 4 7.44 19.61 4 11.63 16.92 5 5.16 15.62 5 9.17 13.09 6 3.01 11.56 6 6.78 9.22 7 0.94 7.46 7 4.46 5.31 8 −
1.053.33 8 2.18 1.38 9 −
3.00−
0.839 −
0.03−
2.6010 −
4.93−
5.0010 −
2.17−
6.6111 −
6.80−
9.1911 −
4.27−
10.6512 −
8.63−
13.4012 −
6.33−
14.7013 −
10.41−
17.6313 −
8.35−
18.7714 −
12.14−
21.8814 −
10.34−
22.8715 −
13.82−
26.1515 −
12.27−
26.9816 −
15.45−
30.4516 −
14.15−
31.1317 −
17.01−
34.7617 −
15.97−
35.29 - View Dependent Claims (19)
- 0.3 mm from series of points defining blade section configurations as defined in the following charts;
-
11. A turbine bucket which is formed in such a manner that the blade sectional configuration is twisted from a blade root portion to a blade tip side, characterized in that when assuming two axial directions in a blade section of the bucket along horizontal plane and taking one axial direction as X axis and the other axial direction perpendicular to X axis as Y axis, the blade sections at the following heights from the blade root portion of the turbine bucket are formed in a range of ±
- 0.3 mm from series of points defining blade section configurations as defined in the following charts;
the blade section at height 38 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 52.92 −
21.611 50.93 −
23.302 49.19 −
13.952 46.31 −
17.453 44.35 −
7.043 40.90 −
12.794 38.49 −
0.974 34.82 −
8.945 31.84 4.20 5 28.38 −
5.756 24.59 8.49 6 21.64 −
3.277 16.80 11.72 7 14.65 −
1.618 8.58 13.61 8 7.52 −
0.719 0.15 14.13 9 0.33 −
0.4610 −
8.2413.14 10 −
6.83−
1.0311 −
16.3410.82 11 −
13.87−
2.4312 −
24.017.29 12 −
20.72−
4.6113 −
31.012.59 13 −
27.27−
7.5614 −
37.22−
3.1014 −
33.41−
11.2815 −
42.64−
9.5415 −
39.12−
15.6516 −
47.38−
16.4416 −
44.54−
20.5517 −
51.36−
23.7517 −
49.67−
25.93the blade section at height 106 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 49.13 −
14.161 47.52 −
15.622 45.29 −
7.072 42.51 −
10.673 40.19 −
0.923 36.82 −
6.814 34.11 4.27 4 30.59 −
3.875 27.30 8.44 5 24.04 −
1.716 19.92 11.48 6 17.30 −
0.277 12.14 13.29 7 10.44 0.47 8 4.15 13.60 8 3.54 0.53 9 −
3.7612.48 9 −
3.31−
0.1910 −
11.4010.17 10 −
10.04−
1.7111 −
18.616.75 11 −
16.54−
4.0112 −
25.282.36 12 −
22.73−
7.0413 −
31.32−
2.8413 −
28.54−
10.7514 −
36.61−
8.8014 −
33.96−
15.0215 −
41.41−
15.1515 −
38.94−
19.8016 −
45.70−
21.8616 −
43.51−
24.9917 −
49.31−
28.8917 −
47.71−
30.56the blade section at height 170 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 46.60 −
8.041 45.34 −
9.432 42.19 −
1.832 40.02 −
5.283 36.62 3.32 3 34.09 −
2.234 30.25 7.44 4 27.74 −
0.155 23.32 10.52 5 21.17 1.11 6 16.00 12.48 6 14.51 1.68 7 8.44 13.15 7 7.82 1.63 8 0.91 12.18 8 1.19 0.80 9 −
6.359.97 9 −
5.32−
0.7310 −
13.176.70 10 −
11.60−
3.0211 −
19.572.63 11 −
17.55−
6.0612 −
25.42−
2.1812 −
23.13−
9.7413 −
30.64−
7.6713 −
28.32−
13.9614 −
35.44−
13.5214 −
33.16−
18.5815 −
39.78−
19.7215 −
37.65−
23.5416 −
43.64−
26.2316 −
41.76−
28.8217 −
47.01−
33.0117 −
45.46−
34.39the blade section at height 215 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 44.68 −
3.591 43.82 −
4.912 39.78 1.83 2 38.27 −
1.433 34.01 6.30 3 32.23 1.10 4 27.55 9.70 4 25.85 2.57 5 20.58 11.89 5 19.33 3.17 6 13.33 12.82 6 12.78 3.13 7 6.03 12.59 7 6.28 2.34 8 −
1.0610.87 8 −
0.070.75 9 −
7.798.02 9 −
6.25−
1.4110 −
14.024.23 10 −
12.15−
4.2511 −
19.83−
0.2111 −
17.68−
7.7512 −
25.17−
5.1912 −
22.83−
11.8013 −
29.98−
10.6813 −
27.66−
16.2214 −
34.41−
16.4814 −
32.18−
20.9515 −
38.43−
22.5715 −
36.40−
25.9616 −
42.01−
28.9416 −
40.29−
31.2317 −
45.13−
35.5417 −
43.84−
36.73the blade section at height 255 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 42.87 1.04 1 42.19 −
0.362 37.78 5.95 2 36.56 2.68 3 31.80 9.72 3 30.40 4.36 4 25.19 12.25 4 24.04 5.05 5 18.23 13.49 5 17.65 4.98 6 11.16 13.47 6 11.31 4.21 7 4.18 12.32 7 5.08 2.79 8 −
2.459.86 8 −
0.900.55 9 −
8.626.41 9 −
6.70−
2.1510 −
14.382.30 10 −
12.15−
5.4711 −
19.60−
2.4511 −
17.20−
9.3912 −
24.36−
7.6912 −
21.89−
13.7313 −
28.80−
13.1913 −
26.34−
18.3214 −
32.88−
18.9614 −
30.54−
23.1315 −
36.59−
24.9815 −
34.49−
28.1516 −
39.91−
31.2216 −
38.16−
33.3817 −
42.84−
37.6517 −
41.55−
38.80the blade section at height 340 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 37.69 13.97 1 37.80 12.45 2 31.64 16.22 2 31.79 12.04 3 25.21 16.73 3 25.85 11.01 4 18.76 16.27 4 20.02 9.47 5 12.44 14.91 5 14.34 7.48 6 6.37 12.70 6 8.79 5.11 7 0.55 9.86 7 3.42 2.39 8 −
4.926.42 8 −
1.69−
0.809 −
9.962.37 9 −
6.66−
4.2210 −
14.57−
2.1710 −
11.36−
8.0011 −
18.80−
7.0711 −
15.71−
12.1612 −
22.72−
12.2112 −
19.74−
16.6513 −
26.37−
17.5513 −
23.50−
21.3514 −
29.70−
23.1014 −
27.08−
26.2115 −
32.68−
28.8415 −
30.43−
31.2216 −
35.38−
34.7216 −
33.57−
36.3617 −
37.79−
40.7217 −
36.49−
41.64the blade section at height 425 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 30.60 22.64 1 31.33 21.37 2 24.70 22.25 2 26.65 18.23 3 19.03 20.65 3 21.91 15.18 4 13.62 18.27 4 17.13 12.20 5 8.51 15.32 5 12.42 9.11 6 3.72 11.88 6 7.84 5.82 7 −
0.758.02 7 3.45 2.29 8 −
4.923.85 8 −
0.74−
1.479 −
8.90−
0.529 −
4.72−
5.4610 −
12.47−
5.2110 −
8.55−
9.5911 −
15.76−
10.1111 −
12.18−
13.9012 −
18.83−
15.1512 −
15.57−
18.4013 −
21.69−
20.3113 −
18.73−
23.0714 −
24.33−
25.5914 −
21.68−
27.8715 −
26.73−
30.9815 −
24.46−
32.7716 −
28.90−
36.4716 −
27.08−
37.7617 −
30.82−
42.0517 −
29.54−
42.83the blade section at height 510 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 22.39 28.09 1 23.38 27.05 2 17.67 25.69 2 20.28 22.91 3 13.38 22.60 3 16.87 19.03 4 9.44 19.07 4 13.34 15.25 5 5.78 15.25 5 9.86 11.43 6 2.34 11.23 6 6.50 7.51 7 −
0.897.04 7 3.25 3.48 8 −
3.902.69 8 0.14 −
0.649 −
6.68−
1.829 −
2.84−
4.8610 −
9.25−
6.4410 −
5.69−
9.1711 −
11.66−
11.1511 −
8.41−
13.5712 −
13.94−
15.9212 −
11.01−
18.0313 −
16.11−
20.7513 −
13.50−
22.5614 −
18.15−
25.6314 −
15.88−
27.1515 −
20.07−
30.5615 −
18.15−
31.7916 −
21.87−
35.5416 −
20.33−
36.4817 −
23.54−
40.5617 −
22.39−
41.21the blade section at height 589 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 17.30 29.70 1 18.44 28.95 2 13.58 26.72 2 16.86 24.50 3 10.45 23.13 3 14.48 20.42 4 7.64 19.28 4 11.80 16.53 5 5.04 15.28 5 9.12 12.65 6 2.63 11.17 6 6.52 8.71 7 0.36 6.98 7 4.00 4.72 8 −
1.792.73 8 1.55 0.68 9 −
3.90−
1.559 −
0.81−
3.4110 −
5.95−
5.8510 −
3.09−
7.5411 −
7.93−
10.1811 −
5.31−
11.7112 −
9.86−
14.5412 −
7.47−
15.9013 −
11.72−
18.9313 −
9.59−
20.1314 −
13.51−
23.3414 −
11.64−
24.3815 −
15.24−
27.7815 −
13.64−
28.6516 −
16.90−
32.2516 −
15.57−
32.9617 −
18.49−
36.7417 −
17.44−
37.30the blade section at height 660.4 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 15.29 30.21 1 16.38 29.26 2 12.06 27.20 2 15.33 25.01 3 9.39 23.68 3 13.53 21.03 4 7.18 19.86 4 11.39 17.22 5 5.23 15.89 5 9.17 13.45 6 3.37 11.89 6 6.99 9.66 7 1.48 7.90 7 4.88 5.83 8 −
0.333.88 8 2.77 2.00 9 −
2.14−
0.159 0.71 −
1.8510 −
3.94−
4.1910 −
1.29−
5.7411 −
5.71−
8.2311 −
3.27−
9.6412 −
7.44−
12.2912 −
5.22−
13.5513 −
9.14−
16.3713 −
7.16−
17.4714 −
10.80−
20.4614 −
9.07−
21.4115 −
12.44−
24.5615 −
10.94−
25.3616 −
14.02−
28.6816 −
12.76−
29.3317 −
15.55−
32.8217 −
14.54−
33.33
- 0.3 mm from series of points defining blade section configurations as defined in the following charts;
-
12. A turbine bucket which is formed in such a manner that the blade sectional configuration is twisted from a blade root portion to a blade tip side, characterized in that when assuming two axial directions in a blade section of the bucket along horizontal plane and taking one axial direction as X axis and the other axial direction perpendicular to X axis as Y axis, the blade sections at the following heights from the blade root portion of the turbine bucket are formed in a range of ±
- 0.3 mm from series of points defining blade section configurations as defined in the following charts;
the blade section at the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 53.99 −
24.791 51.87 −
26.292 50.71 −
16.862 47.39 −
20.603 45.93 −
9.733 42.02 −
15.744 40.22 −
3.324 36.04 −
11.645 33.75 2.32 5 29.68 −
8.186 26.58 7.05 6 23.04 −
5.297 18.83 10.75 7 16.16 −
3.028 10.63 13.28 8 9.09 −
1.459 2.14 14.59 9 1.88 −
0.7010 −
6.4414.38 10 −
5.36−
0.8211 −
14.8712.76 11 −
12.54−
1.7912 −
22.929.77 12 −
19.56−
3.5813 −
30.335.43 13 −
26.32−
6.1714 −
36.95−
0.0414 −
32.71−
9.6015 −
42.63−
6.4815 −
38.72−
13.6416 −
47.46−
13.4316 −
44.51−
18.2417 −
51.73−
20.8517 −
49.97−
23.33the blade section at height 38 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 52.92 −
21.611 50.93 −
23.302 49.19 −
13.952 46.31 −
17.453 44.35 −
7.043 40.90 −
12.794 38.49 −
0.974 34.82 −
8.945 31.84 4.20 5 28.38 −
5.756 24.59 8.49 6 21.64 −
3.277 16.80 11.72 7 14.65 −
1.618 8.58 13.61 8 7.52 −
0.719 0.15 14.13 9 0.33 −
0.4610 −
8.2413.14 10 −
6.83−
1.0311 −
16.3410.82 11 −
13.87−
2.4312 −
24.017.29 12 −
20.72−
4.6113 −
31.012.59 13 −
27.27−
7.5614 −
37.22−
3.1014 −
33.41−
11.2815 −
42.64−
9.5415 −
39.12−
15.6516 −
47.38−
16.4416 −
44.54−
20.5517 −
51.36−
23.7517 −
49.67−
25.93the blade section at height 70 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 50.76 −
17.391 48.96 −
18.882 47.08 −
9.972 44.05 −
13.633 42.14 −
3.423 38.49 −
9.414 36.19 2.21 4 32.35 −
6.045 29.45 6.85 5 25.85 −
3.436 22.07 10.41 6 19.11 −
1.577 14.26 12.85 7 12.19 −
0.468 6.13 13.96 8 5.20 −
0.019 −
2.0613.60 9 −
1.80−
0.3210 −
10.0511.80 10 −
8.72−
1.4111 −
17.678.83 11 −
15.47−
3.2612 −
24.844.87 12 −
21.99−
5.8313 −
31.36−
0.0813 −
28.17−
9.1114 −
36.99−
6.0114 −
33.96−
13.0615 −
42.11−
12.3715 −
39.27−
17.6416 −
46.54−
19.1516 −
44.26−
22.7017 −
50.35−
26.3217 −
48.79−
28.18the blade section at height 106 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 49.13 −
14.161 47.52 −
15.622 45.29 −
7.072 42.51 −
10.673 40.19 −
0.923 36.82 −
6.814 34.11 4.27 4 30.59 −
3.875 27.30 8.44 5 24.04 −
1.716 19.92 11.48 6 17.30 −
0.277 12.14 13.29 7 10.44 0.47 8 4.15 13.60 8 3.54 0.53 9 −
3.7612.48 9 −
3.31−
0.1910 −
11.4010.17 10 −
10.04−
1.7111 −
18.616.75 11 −
16.54−
4.0112 −
25.282.36 12 −
22.73−
7.0413 −
31.32−
2.8413 −
28.54−
10.7514 −
36.61−
8.8014 −
33.96−
15.0215 −
41.41−
15.1515 −
38.94−
19.8016 −
45.70−
21.8616 −
43.51−
24.9917 −
49.31−
28.8917 −
47.71−
30.56the blade section at height 138 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 47.67 −
10.851 46.26 −
12.232 43.68 −
4.102 41.12 −
7.663 38.54 1.77 3 35.31 −
4.174 32.37 6.53 4 29.01 −
1.685 25.43 10.08 5 22.42 −
0.036 18.01 12.46 6 15.70 0.92 7 10.30 13.63 7 8.92 1.20 8 2.51 13.19 8 2.16 0.63 9 −
5.0611.36 9 −
4.53−
0.5110 −
12.298.46 10 −
11.06−
2.3611 −
19.064.61 11 −
17.31−
4.9812 −
25.28−
0.0712 −
23.21−
8.3413 −
30.89−
5.4613 −
28.68−
12.3614 −
35.88−
11.4214 −
33.73−
16.8915 −
40.44−
17.7215 −
38.41−
21.8116 −
44.53−
24.3316 −
42.69−
27.0917 −
48.12−
31.2217 −
46.56−
32.70the blade section at height 170 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 46.60 −
8.041 45.34 −
9.432 42.19 −
1.832 40.02 −
5.283 36.62 3.32 3 34.09 −
2.234 30.25 7.44 4 27.74 −
0.155 23.32 10.52 5 21.17 1.11 6 16.00 12.48 6 14.51 1.68 7 8.44 13.15 7 7.82 1.63 8 0.91 12.18 8 1.19 0.80 9 −
6.349.97 9 −
5.32−
0.7310 −
13.176.70 10 −
11.60−
3.0211 −
19.572.63 11 −
17.55−
6.0612 −
25.42−
2.1812 −
23.13−
9.7413 −
30.64−
7.6713 −
28.32−
13.9614 −
35.44−
13.5214 −
33.16−
18.5815 −
39.78−
19.7215 −
37.65−
23.5416 −
43.64−
26.2316 −
41.76−
28.8217 −
47.01−
33.0117 −
45.46−
34.39the blade section at height 215 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 44.68 −
3.591 43.82 −
4.912 39.78 1.83 2 38.27 −
1.433 34.01 6.30 3 32.23 1.10 4 27.55 9.70 4 25.85 2.57 5 20.58 11.89 5 19.33 3.17 6 13.33 12.82 6 12.78 3.13 7 6.03 12.59 7 6.28 2.34 8 −
1.0610.87 8 −
0.070.75 9 −
7.798.02 9 −
6.25−
1.4110 −
14.024.23 10 −
12.15−
4.2511 −
19.83−
0.2111 −
17.68−
7.7512 −
25.17−
5.1912 −
22.83−
11.8013 −
29.98−
10.6813 −
27.66−
16.2214 −
34.41−
16.4814 −
32.18−
20.9515 −
38.43−
22.5715 −
36.40−
25.9616 −
42.01−
28.9416 −
40.29−
31.2317 −
45.13−
35.5417 −
43.84−
36.73the blade section at height 255 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 42.87 1.04 1 42.19 −
0.362 37.78 5.95 2 36.56 2.68 3 31.80 9.72 3 30.40 4.36 4 25.19 12.25 4 24.04 5.05 5 18.23 13.49 5 17.65 4.98 6 11.16 13.47 6 11.31 4.21 7 4.18 12.32 7 5.08 2.79 8 −
2.459.86 8 −
0.900.55 9 −
8.626.41 9 −
6.70−
2.1510 −
14.382.30 10 −
12.15−
5.4711 −
19.60−
2.4511 −
17.20−
9.3912 −
24.36−
7.6912 −
21.89−
13.7313 −
28.80−
13.1913 −
26.34−
18.3214 −
32.88−
18.9614 −
30.54−
23.1315 −
36.59−
24.9815 −
34.49−
28.1516 −
39.91−
31.2216 −
38.16−
33.3817 −
42.84−
37.6517 −
41.55−
38.80the blade section at height 300 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 40.93 6.66 1 40.66 5.15 2 35.55 10.84 2 34.66 6.83 3 29.24 13.45 3 28.45 7.41 4 22.54 14.73 4 22.23 7.15 5 15.71 14.78 5 16.06 6.20 6 8.98 13.66 6 10.03 4.64 7 2.56 11.37 7 4.16 2.57 8 −
3.568.37 8 −
1.520.00 9 −
9.154.47 9 −
6.90−
3.1410 −
14.29−
0.0110 −
11.98−
6.7411 −
19.06−
4.8811 −
16.72−
10.7812 −
23.50−
10.0412 −
21.12−
15.2013 −
27.59−
15.5013 −
25.23−
19.8814 −
31.33−
21.2014 −
29.04−
24.8115 −
34.70−
27.1215 −
32.59−
29.9316 −
37.74−
33.2216 −
35.98−
35.1617 −
40.43−
39.4917 −
39.14−
40.52the blade section at height 340 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 37.69 13.97 1 37.80 12.45 2 31.64 16.22 2 31.79 12.04 3 25.21 16.73 3 25.85 11.01 4 18.76 16.27 4 20.02 9.47 5 12.44 14.91 5 14.34 7.48 6 6.37 12.70 6 8.79 5.11 7 0.55 9.86 7 3.42 2.39 8 −
4.926.42 8 −
1.69−
0.809 −
9.962.37 9 −
6.66−
4.2210 −
14.57−
2.1710 −
11.36−
8.0011 −
18.80−
7.0711 −
15.71−
12.1612 −
22.72−
12.2112 −
19.74−
16.6513 −
26.37−
17.5513 −
23.50−
21.3514 −
29.70−
23.1014 −
27.08−
26.2115 −
32.68−
28.8415 −
30.43−
31.2216 −
35.38−
34.7216 −
33.57−
36.3617 −
37.79−
40.7217 −
36.49−
41.64the blade section at height 380 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 34.40 18.53 1 34.94 17.12 2 28.28 19.58 2 29.37 15.30 3 22.09 19.13 3 23.90 13.20 4 16.08 17.57 4 18.56 10.79 5 10.33 15.20 5 13.35 8.11 6 4.89 12.20 6 8.27 5.18 7 −
0.288.75 7 3.35 2.00 8 −
5.184.92 8 −
1.42−
1.419 −
9.720.67 9 −
5.97−
5.1010 −
13.91−
3.9210 −
10.29−
9.0611 −
17.81−
8.7611 −
14.36−
13.2812 −
21.42−
13.8312 −
18.16−
17.7413 −
24.72−
19.1013 −
21.68−
22.4214 −
27.69−
24.5614 −
24.96−
27.2815 −
30.34−
30.1915 −
28.03−
32.2716 −
32.75−
35.9216 −
30.92−
37.3717 −
34.93−
41.7417 −
33.62−
42.57the blade section at height 425 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 30.60 22.64 1 31.33 21.37 2 24.70 22.25 2 26.65 18.23 3 19.03 20.65 3 21.91 15.18 4 13.62 18.27 4 17.13 12.20 5 8.51 15.32 5 12.42 9.11 6 3.72 11.88 6 7.84 5.82 7 0.75 8.02 7 3.45 2.29 8 4.92 3.85 8 −
0.74−
1.479 −
8.90−
0.529 −
4.72−
5.4610 −
12.47−
5.2110 −
8.55−
9.5911 −
15.76−
10.1111 −
12.18−
13.9012 −
18.83−
15.1512 −
15.57−
18.4013 −
21.69−
20.3113 −
18.73−
23.0714 −
24.33−
25.5914 −
21.68−
27.8715 −
26.73−
30.9815 −
24.46−
32.7716 −
28.90−
36.4716 −
27.08−
37.7617 −
30.82−
42.0517 −
29.54−
42.83the blade section at height 470 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 26.25 25.52 1 27.12 24.37 2 20.99 24.07 2 23.28 20.71 3 16.04 21.69 3 19.24 17.22 4 11.42 18.70 4 15.12 13.81 5 7.07 15.29 5 11.06 10.34 6 3.00 11.54 6 7.13 6.71 7 −
0.827.51 7 3.35 2.92 8 −
4.373.24 8 −
0.27−
1.039 −
7.72−
1.209 −
3.72−
5.1510 −
10.76−
5.8610 −
7.04−
9.3711 −
13.58−
10.6611 −
10.18−
13.7312 −
16.24−
15.5512 −
13.16−
18.2113 −
18.73−
20.5413 −
15.96−
22.8014 −
21.05−
25.6114 −
18.60−
27.4915 −
23.20−
30.7515 −
21.12−
32.2516 −
25.17−
35.9716 −
23.50−
37.0817 −
26.96−
41.2617 −
25.76−
41.97the blade section at height 510 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 22.39 28.09 1 23.38 27.05 2 17.67 25.69 2 20.28 22.91 3 13.38 22.60 3 16.87 19.03 4 9.44 19.07 4 13.34 15.25 5 5.78 15.25 5 9.86 11.43 6 2.34 11.23 6 6.50 7.51 7 −
0.897.04 7 3.25 3.48 8 −
3.902.69 8 0.14 −
0.649 −
6.68−
1.829 −
2.84−
4.8610 −
9.25−
6.4410 −
5.69−
9.1711 −
11.66−
11.1511 −
8.41−
13.5712 −
13.94−
15.9212 −
11.01−
18.0313 −
16.11−
20.7513 −
13.50−
22.5614 −
18.15−
25.6314 −
15.88−
27.1515 −
20.07−
30.5615 −
18.15−
31.7916 −
21.87−
35.5416 −
20.33−
36.4817 −
23.54−
40.5617 −
22.39−
41.21the blade section at height 550 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 18.75 29.44 1 19.92 28.64 2 14.59 26.71 2 17.67 24.27 3 11.03 23.23 3 14.95 20.19 4 7.89 19.37 4 11.99 16.27 5 5.01 15.31 5 9.06 12.33 6 2.34 11.11 6 6.24 8.31 7 −
0.156.80 7 3.50 4.23 8 −
2.512.42 8 0.87 0.09 9 −
4.78−
2.019 −
1.66−
4.1210 −
6.98−
6.4810 −
4.09−
8.3911 −
9.10−
10.9811 −
6.43−
12.7012 −
11.14−
15.5212 −
8.71−
17.0513 −
13.09−
20.1013 −
10.92−
21.4414 −
14.97−
24.7114 −
13.05−
25.8615 −
16.76−
29.3515 −
15.12−
30.3116 −
18.47−
34.0216 −
17.11−
34.8017 −
20.10−
38.7317 −
19.03−
39.32the blade section at height 589 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 17.30 29.70 1 18.44 28.95 2 13.58 26.72 2 16.86 24.50 3 10.45 23.13 3 14.48 20.42 4 7.64 19.28 4 11.80 16.53 5 5.04 15.28 5 9.12 12.65 6 2.63 11.17 6 6.52 8.71 7 0.36 6.98 7 4.00 4.72 8 −
1.792.73 8 1.55 0.68 9 −
3.90−
1.559 −
0.81−
3.4110 −
5.95−
5.8510 −
3.09−
7.5411 −
7.93−
10.1811 −
5.31−
11.7112 −
9.86−
14.5412 −
7.47−
15.9013 −
11.72−
18.9313 −
9.59−
20.1314 −
13.51−
23.3414 −
11.64−
24.3815 −
15.24−
27.7815 −
13.64−
28.6516 −
16.90−
32.2516 −
15.57−
32.9617 −
18.49−
36.7417 −
17.44−
37.30the blade section at height 625 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 16.24 30.11 1 17.35 29.20 2 12.85 27.01 2 16.11 24.82 3 9.96 23.44 3 14.04 20.78 4 7.44 19.61 4 11.63 16.92 5 5.16 15.62 5 9.17 13.09 6 3.01 11.56 6 6.78 9.22 7 0.94 7.46 7 4.46 5.31 8 −
1.053.33 8 2.18 1.38 9 −
3.00−
0.839 −
0.03−
2.6010 −
4.93−
5.0010 −
2.17−
6.6111 −
6.80−
9.1911 −
4.27−
10.6512 −
8.63−
13.4012 −
6.33−
14.7013 −
10.41−
17.6313 −
8.35−
18.7714 −
12.14−
21.8814 −
10.34−
22.8715 −
13.82−
26.1515 −
12.27−
26.9816 −
15.45−
30.4516 −
14.15−
31.1317 −
17.01−
34.7617 −
15.97−
35.29the blade section at height 660.4 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 15.29 30.21 1 16.38 29.26 2 12.06 27.20 2 15.33 25.01 3 9.39 23.68 3 13.53 21.03 4 7.18 19.86 4 11.39 17.22 5 5.23 15.89 5 9.17 13.45 6 3.37 11.89 6 6.99 9.66 7 1.48 7.90 7 4.88 5.83 8 −
0.333.88 8 2.77 2.00 9 −
2.14−
0.159 0.71 −
1.8510 −
3.94−
4.1910 −
1.29−
5.7411 −
5.71−
8.2311 −
3.27−
9.6412 −
7.44−
12.2912 −
5.22−
13.5513 −
9.14−
16.3713 −
7.16−
17.4714 −
10.80−
20.4614 −
9.07−
21.4115 −
12.44−
24.5615 −
10.94−
25.3616 −
14.02−
28.6816 −
12.76−
29.3317 −
15.55−
32.8217 −
14.54−
33.33
- 0.3 mm from series of points defining blade section configurations as defined in the following charts;
-
13. A turbine bucket which is formed in such a manner that the blade sectional configuration is twisted from a blade root portion to a blade tip side, characterized in that when assuming two axial directions in a blade section of the bucket along horizontal plane and taking one axial direction as X axis and the other axial direction perpendicular to X axis as Y axis, the blade sections at the following heights from the blade root portion of the turbine bucket are formed in a range of ±
- 0.15 mm from series of points defining blade section configurations as defined in the following charts;
the blade section at the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 53.99 −
24.791 51.87 −
26.292 50.71 −
16.862 47.39 −
20.603 45.93 −
9.733 42.02 −
15.744 40.22 −
3.324 36.04 −
11.645 33.75 2.32 5 29.68 −
8.186 26.58 7.05 6 23.04 −
5.297 18.83 10.75 7 16.16 −
3.028 10.63 13.28 8 9.09 −
1.459 2.14 14.59 9 1.88 −
0.7010 −
6.4414.38 10 −
5.36−
0.8211 −
14.8712.76 11 −
12.54−
1.7912 −
22.929.77 12 −
19.56−
3.5813 −
30.335.43 13 −
26.32−
6.1714 −
36.95−
0.0414 −
32.71−
9.6015 −
42.63−
6.4815 −
38.72−
13.6416 −
47.46−
13.4316 −
44.51−
18.2417 −
51.73−
20.8517 −
49.97−
23.33the blade section at height 106 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 49.13 −
14.161 47.52 −
15.622 45.29 −
7.072 42.51 −
10.673 40.19 −
0.923 36.82 −
6.814 34.11 4.27 4 30.59 −
3.875 27.30 8.44 5 24.04 −
1.716 19.92 11.48 6 17.30 −
0.277 12.14 13.29 7 10.44 0.47 8 4.15 13.60 8 3.54 0.53 9 −
3.7612.48 9 −
3.31−
0.1910 −
11.4010.17 10 −
10.04−
1.7111 −
18.616.75 11 −
16.54−
4.0112 −
25.282.36 12 −
22.73−
7.0413 −
31.32−
2.8413 −
28.54−
10.7514 −
36.61−
8.8014 −
33.96−
15.0215 −
41.41−
15.1515 −
38.94−
19.8016 −
45.70−
21.8616 −
43.51−
24.9917 −
49.31−
28.8917 −
47.71−
30.56the blade section at height 170 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 46.60 −
8.041 45.34 −
9.432 42.19 −
1.832 40.02 −
5.283 36.62 3.32 3 34.09 −
2.234 30.25 7.44 4 27.74 −
0.155 23.32 10.52 5 21.17 1.11 6 16.00 12.48 6 14.51 1.68 7 8.44 13.15 7 7.82 1.63 8 0.91 12.18 8 1.19 0.80 9 −
6.349.97 9 −
5.32−
0.7310 −
13.176.70 10 −
11.60−
3.0211 −
19.572.63 11 −
17.55−
6.0612 −
25.42−
2.1812 −
23.13−
9.7413 −
30.64−
7.6713 −
28.32−
13.9614 −
35.44−
13.5214 −
33.16−
18.5815 −
39.78−
19.7215 −
37.65−
23.5416 −
43.64−
26.2316 −
41.76−
28.8217 −
47.01−
33.0117 −
45.46−
34.39the blade section at height 300 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 40.93 6.66 1 40.66 5.15 2 35.55 10.84 2 34.66 6.83 3 29.24 13.45 3 28.45 7.41 4 22.54 14.73 4 22.23 7.15 5 15.71 14.78 5 16.06 6.20 6 8.98 13.66 6 10.03 4.64 7 2.56 11.37 7 4.16 2.57 8 −
3.568.37 8 −
1.520.00 9 −
9.154.47 9 −
6.90−
3.1410 −
14.29−
0.0110 −
11.98−
6.7411 −
19.06−
4.8811 −
16.72−
10.7812 −
23.50−
10.0412 −
21.12−
15.2013 −
27.59−
15.5013 −
25.23−
19.8814 −
31.33−
21.2014 −
29.04−
24.8115 −
34.70−
27.1215 −
32.59−
29.9316 −
37.74−
33.2216 −
35.98−
35.1617 −
40.43−
39.4917 −
39.14−
40.52the blade section at height 425 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 30.60 22.64 1 31.33 21.37 2 24.70 22.25 2 26.65 18.23 3 19.03 20.65 3 21.91 15.18 4 13.62 18.27 4 17.13 12.20 5 8.51 15.32 5 12.42 9.11 6 3.72 11.88 6 7.84 5.82 7 −
0.758.02 7 3.45 2.29 8 −
4.923.85 8 −
0.74−
1.479 −
8.90−
0.529 −
4.72−
5.4610 −
12.47−
5.2110 −
8.55−
9.5911 −
15.76−
10.1111 −
12.18−
13.9012 −
18.83−
15.1512 −
15.57−
18.4013 −
21.69−
20.3113 −
18.73−
23.0714 −
24.33−
25.5914 −
21.68−
27.8715 −
26.73−
30.9815 −
24.46−
32.7716 −
28.90−
36.4716 −
27.08−
37.7617 −
30.82−
42.0517 −
29.54−
42.83the blade section at height 550 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 18.75 29.44 1 19.92 28.64 2 14.59 26.71 2 17.67 24.27 3 11.03 23.23 3 14.95 20.19 4 7.89 19.37 4 11.99 16.27 5 5.01 15.31 5 9.06 12.33 6 2.34 11.11 6 6.24 8.31 7 −
0.156.80 7 3.50 4.23 8 −
2.512.42 8 0.87 0.09 9 −
4.78−
2.019 −
1.66−
4.1210 −
6.98−
6.4810 −
4.09−
8.3911 −
9.10−
10.9811 −
6.43−
12.7012 −
11.14−
15.5212 −
8.71−
17.0513 −
13.09−
20.1013 −
10.92−
21.4414 −
14.97−
24.7114 −
13.05−
25.8615 −
16.76−
29.3515 −
15.12−
30.3116 −
18.47−
34.0216 −
17.11−
34.8017 −
20.10−
38.7317 −
19.03−
39.32the blade section at height 660.4 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 15.29 30.21 1 16.38 29.26 2 12.06 27.20 2 15.33 25.01 3 9.39 23.68 3 13.53 21.03 4 7.18 19.86 4 11.39 17.22 5 5.23 15.89 5 9.17 13.45 6 3.37 11.89 6 6.99 9.66 7 1.48 7.90 7 4.88 5.83 8 −
0.333.88 8 2.77 2.00 9 −
2.14−
0.159 0.71 −
1.8510 −
3.94−
4.1910 −
1.29−
5.7411 −
5.71−
8.2311 −
3.27−
9.6412 −
7.44−
12.2912 −
5.22−
13.5513 −
9.14−
16.3713 −
7.16−
17.47.14 −
10.80−
20.4614 −
9.07−
21.4115 −
12.44−
24.5615 −
10.94−
25.3616 −
14.02−
28.6816 −
12.76−
29.3317 −
15.55−
32.8217 −
14.54−
33.33
- 0.15 mm from series of points defining blade section configurations as defined in the following charts;
-
14. A turbine bucket which is formed in such a manner that the blade sectional configuration is twisted from a blade root portion to a blade tip side, characterized in that when assuming two axial directions in a blade section of the bucket along horizontal plane and taking one axial direction as X axis and the other axial direction perpendicular to X axis as Y axis, the blade sections at the following heights from the blade root portion of the turbine bucket are formed in a range of ±
- 0.15 mm from series of points defining blade section configurations as defined in the following charts;
the blade section at the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 53.99 −
24.791 51.87 −
26.292 50.71 −
16.862 47.39 −
20.603 45.93 −
9.733 42.02 −
15.744 40.22 −
3.324 36.04 −
11.645 33.75 2.32 5 29.68 −
8.186 26.58 7.05 6 23.04 −
5.297 18.83 10.75 7 16.16 −
3.028 10.63 13.28 8 9.09 −
1.459 2.14 14.59 9 1.88 −
0.7010 −
6.4414.38 10 −
5.36−
0.8211 −
14.8712.76 11 −
12.54−
1.7912 −
22.929.77 12 −
19.56−
3.5813 −
30.335.43 13 −
26.32−
6.1714 −
36.95−
0.0414 −
32.71−
9.6015 −
42.63−
6.4815 −
38.72−
13.6416 −
47.46−
13.4316 −
44.51−
18.2417 −
51.73−
20.8517 −
49.97−
23.33the blade section at height 38 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 52.92 −
21.611 50.93 −
23.302 49.19 −
13.952 46.31 −
17.453 44.35 −
7.043 40.90 −
12.794 38.49 −
0.974 34.82 −
8.945 31.84 4.20 5 28.38 −
5.756 24.59 8.49 6 21.64 −
3.277 16.80 11.72 7 14.65 −
1.618 8.58 13.61 8 7.52 −
0.719 0.15 14.13 9 0.33 −
0.4610 −
8.2413.14 10 −
6.83−
1.0311 −
16.3410.82 11 −
13.87−
2.4312 −
24.017.29 12 −
20.72−
4.6113 −
31.012.59 13 −
27.27−
7.5614 −
37.22−
3.1014 −
33.41−
11.2815 −
42.64−
9.5415 −
39.12−
15.6516 −
47.38−
16.4416 −
44.54−
20.5517 −
51.36−
23.7517 −
49.67−
25.93the blade section at height 70 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 50.76 −
17.391 48.96 −
18.882 47.08 −
9.972 44.05 −
13.633 42.14 −
3.423 38.49 −
9.414 36.19 2.21 4 32.35 −
6.045 29.45 6.85 5 25.85 −
3.436 22.07 10.41 6 19.11 −
1.577 14.26 12.85 7 12.19 −
0.468 6.13 13.96 8 5.20 −
0.019 −
2.0613.60 9 −
1.80−
0.3210 −
10.0511.80 10 −
8.72−
1.4111 −
17.678.83 11 −
15.47−
3.2612 −
24.844.87 12 −
21.99−
5.8313 −
31.36−
0.0813 −
28.17−
9.1114 −
36.99−
6.0114 −
33.96−
13.0615 −
42.11−
12.3715 −
39.27−
17.6416 −
46.54−
19.1516 −
44.26−
22.7017 −
50.35−
26.3217 −
48.79−
28.18the blade section at height 106 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 49.13 −
14.161 47.52 −
15.622 45.29 −
7.072 42.51 −
10.673 40.19 −
0.923 36.82 −
6.814 34.11 4.27 4 30.59 −
3.875 27.30 8.44 5 24.04 −
1.716 19.92 11.48 6 17.30 −
0.277 12.14 13.29 7 10.44 0.47 8 4.15 13.60 8 3.54 0.53 9 −
3.7612.48 9 −
3.31−
0.1910 −
11.4010.17 10 −
10.04−
1.7111 −
18.616.75 11 −
16.54−
4.0112 −
25.282.36 12 −
22.73−
7.0413 −
31.32−
2.8413 −
28.54−
10.7514 −
36.61−
8.8014 −
33.96−
15.0215 −
41.41−
15.1515 −
38.94−
19.8016 −
45.70−
21.8616 −
43.51−
24.9917 −
49.31−
28.8917 −
47.71−
30.56the blade section at height 138 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 47.67 −
10.851 46.26 −
12.232 43.68 −
4.102 41.12 −
7.663 38.54 1.77 3 35.31 −
4.174 32.37 6.53 4 29.01 −
1.685 25.43 10.08 5 22.42 −
0.036 18.01 12.46 6 15.70 0.92 7 10.30 13.63 7 8.92 1.20 8 2.51 13.19 8 2.16 0.63 9 −
5.0611.36 9 −
4.53−
0.5110 −
12.298.46 10 −
11.06−
2.3611 −
19.064.61 11 −
17.31−
4.9812 −
25.28−
0.0712 −
23.21−
8.3413 −
30.89−
5.4613 −
28.68−
12.3614 −
35.88−
11.4214 −
33.73−
16.8915 −
40.44−
17.7215 −
38.41−
21.8116 −
44.53−
24.3316 −
42.69−
27.0917 −
48.12−
31.2217 −
46.56−
32.70the blade section at height 170 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 46.60 −
8.041 45.34 −
9.432 42.19 −
1.832 40.02 −
5.283 36.62 3.32 3 34.09 −
2.234 30.25 7.44 4 27.74 −
0.155 23.32 10.52 5 21.17 1..11 6 16.00 12.48 6 14.51 1.68 7 8.44 13.15 7 7.82 1.63 8 0.91 12.18 8 1.19 0.80 9 −
6.349.97 9 −
5.32−
0.7310 −
13.176.70 10 −
11.60−
3.0211 −
19.572.63 11 −
17.55−
6.0612 −
25.42−
2.1812 −
23.13−
9.7413 −
30.64−
7.6713 −
28.32−
13.9614 −
35.44−
13.5214 −
33.16−
18.5815 −
39.78−
19.7215 −
37.65−
23.5416 −
43.64−
26.2316 −
41.76−
28.8217 −
47.01−
33.0117 −
45.46−
34.39the blade section at height 215 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 3 44.68 −
3.591 43.82 −
4.912 39.78 1.83 2 38.27 −
1.433 34.01 6.30 3 32.23 1.10 4 27.55 9.70 4 25.85 2.57 5 20.58 11.89 5 19.33 3.17 6 13.33 12.82 6 12.78 3.13 7 6.03 12.59 7 6.28 2.34 8 −
1.0610.87 8 −
0.070.75 9 −
7.798.02 9 −
6.25−
1.4110 −
14.024.23 10 −
12.15−
4.2511 −
19.83−
0.2111 −
17.68−
7.7512 −
25.17−
5.1912 −
22.83−
11.8013 −
29.98−
10.6813 −
27.66−
16.2214 −
34.41−
16.4814 −
32.18−
20.9515 −
38.43−
22.5715 −
36.40−
25.9616 −
42.01−
28.9416 −
40.29−
31.2317 −
45.13−
35.5417 −
43.84−
36.73the blade section at height 225 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 42.87 1.04 1 42.19 −
0.362 37.78 5.95 2 36.56 2.68 3 31.80 9.72 3 30.40 4.36 4 25.19 12.25 4 24.04 5.05 5 18.23 13.49 5 17.65 4.98 6 11.16 13.47 6 11.31 4.21 7 4.18 12.32 7 5.08 2.79 8 −
2.459.86 8 −
0.900.55 9 −
8.626.41 9 −
6.70−
2.1510 −
14.38−
2.3010 −
12.15−
5.4711 −
19.60−
2.4511 −
17.20−
9.3912 −
24.36−
7.6912 −
21.89−
13.7313 −
28.80−
13.1913 −
26.34−
18.3214 −
32.88−
18.9614 −
30.54−
23.1315 −
36.59−
24.9815 −
34.49−
28.1516 −
39.91−
31.2216 −
38.16−
33.3817 −
42.84−
37.6517 −
41.55−
38.80the blade section at height 300 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 40.93 6.66 1 40.66 5.15 2 35.55 10.84 2 34.66 6.83 3 29.24 13.45 3 28.45 7.41 4 22.54 14.73 4 22.23 7.15 5 15.71 14.78 5 16.06 6.20 6 8.98 13.66 6 10.03 4.64 7 2.56 11.37 7 4.16 2.57 8 −
3.568.37 8 −
1.520.00 9 −
9.154.47 9 −
6.90−
3.1410 −
14.29−
0.0110 −
11.98−
6.7411 −
19.06−
4.8811 −
16.72−
10.7812 −
23.50−
10.0412 −
21.12−
15.2013 −
27.59−
15.5013 −
25.23−
19.8814 −
31.33−
21.2014 −
29.04−
24.8115 −
34.70−
27.1215 −
32.59−
29.9316 −
37.74−
33.2216 −
35.98−
35.1617 −
40.43−
39.4917 −
39.14−
40.52the blade section at height 340 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 37.69 13.97 1 37.80 12.45 2 31.64 16.22 2 31.79 12.04 3 25.21 16.73 3 25.85 11.01 4 18.76 16.27 4 20.02 9.47 5 12.44 14.91 5 14.34 7.48 6 6.37 12.70 6 8.79 5.11 7 0.55 9.86 7 3.42 2.39 8 −
4.926.42 8 −
1.69−
0.809 −
9.962.37 9 −
6.66−
4.2210 −
14.57−
2.1710 −
11.36−
8.0011 −
18.80−
7.0711 −
15.71−
12.1612 −
22.72−
12.2112 −
19.74−
16.6513 −
26.37−
17.5513 −
23.50−
21.3514 −
29.70−
23.1014 −
27.08−
26.2115 −
32.68−
28.8415 −
30.43−
31.2216 −
35.38−
34.7216 −
33.57−
36.3617 −
37.79−
40.7217 −
36.49−
41.64the blade section at height 380 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 34.40 18.53 1 34.94 17.12 2 28.28 19.58 2 29.37 15.30 3 22.09 19.13 3 23.90 13.20 4 16.08 17.57 4 18.56 10.79 5 10.33 15.20 5 13.35 8.11 6 4.89 12.20 6 8.27 5.18 7 −
0.288.75 7 3.35 2.00 8 −
5.184.92 8 −
1.42−
1.419 −
9.720.67 9 −
5.97−
5.1010 −
13.91−
3.9210 −
10.29−
9.0611 −
17.81−
8.7611 −
14.36−
13.2812 −
21.42−
13.8312 −
18.16−
17.7413 −
24.72−
19.1013 −
21.68−
22.4214 −
27.69−
24.5614 −
24.96−
27.2815 −
30.34−
30.1915 −
28.03−
32.2716 −
32.75−
35.9216 −
30.92−
37.3717 −
34.93−
41.7417 −
33.62−
42.57the blade section at height 425 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 30.60 22.64 1 31.33 21.37 2 24.70 22.25 2 26.65 18.23 3 19.03 20.65 3 21.91 15.18 4 13.62 18.27 4 17.13 12.20 5 8.51 15.32 5 12.42 9.11 6 3.72 11.88 6 7.84 5.82 7 −
0.758.02 7 3.45 2.29 8 −
4.923.85 8 −
0.74−
1.479 −
8.90−
0.529 −
4.72−
5.4610 −
12.47−
5.2110 −
8.55−
9.5911 −
15.76−
10.1111 −
12.18−
13.9012 −
18.83−
15.1512 −
15.57−
18.4013 −
21.69−
20.3113 −
18.73−
23.0714 −
24.33−
25.5914 −
21.68−
27.8715 −
26.73−
30.9815 −
24.46−
32.7716 −
28.90−
36.4716 −
27.08−
37.7617 −
30.82−
42.0517 −
29.54−
42.83the blade section at height 470 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 26.25 25.52 1 27.12 24.37 2 20.99 24.07 2 23.28 20.71 3 16.04 21.69 3 19.24 17.22 4 11.42 18.70 4 15.12 13.81 5 7.07 15.29 5 11.06 10.34 6 3.00 11.54 6 7.13 6.71 7 −
0.827.51 7 3.35 2.92 8 −
4.373.24 8 −
0.27−
1.039 −
7.72−
1.209 −
3.72−
5.1510 −
10.76−
5.8610 −
7.04−
9.3711 −
13.58−
10.6611 −
10.18−
13.7312 −
16.24−
15.5512 −
13.16−
18.2113 −
18.73−
20.5413 −
15.96−
22.8014 −
21.05−
25.6114 −
18.60−
27.4915 −
23.20−
30.7515 −
21.12−
32.2516 −
25.17−
35.9716 −
23.50−
37.0817 −
26.96−
41.2617 −
25.76−
41.97the blade section at height 510 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 22.39 28.09 1 23.38 27.05 2 17.67 25.69 2 20.28 22.91 3 13.38 22.60 3 16.87 19.03 4 9.44 19.07 4 13.34 15.25 5 5.78 15.25 5 9.86 11.43 6 2.34 11.23 6 6.50 7.51 7 0.89 7.04 7 3.25 3.48 8 3.90 2.69 8 0.14 0.64 9 6.68 1.82 9 2.84 4.86 10 9.25 6.44 10 5.69 9.17 11 −
11.66−
11.1511 8.41 −
13.5712 13.94 15.92 12 −
11.01−
18.0313 16.11 20.75 13 −
13.50−
22.5614 18.15 25.63 14 −
15.88−
27.1515 20.07 30.56 15 −
18.15−
31.7916 21.87 35.54 16 −
20.33−
36.4817 23.54 40.56 17 −
22.39−
41.21the blade section at height 550 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 18.75 29.44 1 19.92 28.64 2 14.59 26.71 2 17.67 24.27 3 11.03 23.23 3 14.95 20.19 4 7.89 19.37 4 11.99 16;
.275 5.01 15.31 5 9.06 12.33 6 2.34 11.11 6 6.24 8.31 7 0.15 6.80 7 3.50 4.23 8 2.51 2.42 8 0.87 0.09 9 −
4.78−
2.019 −
1.66−
4.1210 −
6.98−
6.4810 −
4.09−
8.3911 −
9.10−
10.9811 −
6.43−
12.7012 −
11.14−
15.5212 −
8.71−
17.0513 −
13.09−
20.1013 −
10.92−
21.4414 −
14.97−
24.7114 −
13.05−
25.8615 −
16.76−
29.3515 −
15.12−
30.3116 −
18.47−
34.0216 −
17.11−
34.8017 −
20.10−
38.7317 −
19.03−
39.32the blade section at height 589 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 17.30 29.70 1 18.44 28.95 2 13.58 26.72 2 16.86 24.50 3 10.45 23.13 3 14.48 20.42 4 7.64 19.28 4 11.80 1&
.535 5.04 15.28 5 9.12 12.65 6 2.63 11.17 6 6.52 8.71 7 0.36 6.98 7 4.00 4.72 8 −
1.792.73 8 1.55 0.68 9 −
3.90−
1.559 −
0.81−
3.4110 −
5.95−
5.8510 −
3.09−
7.5411 −
7.93−
10.1811 −
5.31−
11.7112 −
9.86−
14.5412 −
7.47−
15.9013 −
11.72−
18.9313 −
9.59−
20.1314 −
13.51−
23.3414 −
11.64−
24.3815 −
15.24−
27.7815 −
13.64−
28.6516 −
16.90−
32.2516 −
15.57−
32.9617 −
18.49−
36.7417 −
17.44−
37.30the blade section at height 625 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 16.24 30.11 1 17.35 29.20 2 12.85 27.01 2 16.11 24.82 3 9.96 23.44 3 14.04 20.78 4 7.44 19.61 4 11.63 16.92 5 5.16 15.62 5 9.17 13.09 6 3.01 11.56 6 6.78 9.22 7 0.94 7.46 7 4.46 5.31 8 −
1.053.33 8 2.18 1.38 9 −
3.00−
0.839 −
0.03−
2.6010 −
4.93−
5.0010 −
2.17−
6.6111 −
6.80−
9.1911 −
4.27−
10.6512 −
8.63−
13.4012 −
6.33−
14.7013 −
10.41−
17.6313 −
8.35−
18.7714 −
12.14−
21.8814 −
10.34−
22.8715 −
13.82−
26.1515 −
12.27−
26.9816 −
15.45−
30.4516 −
14.15−
31.1317 −
17.01−
34.7617 −
15.97−
35.29the blade section at height 660.4 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 15.29 30.21 1 16.38 29.26 2 12.06 27.20 2 15.33 25.01 3 9.39 23.68 3 13.53 21.03 4 . 7.18 19.86 4 11.39 17.22 5 5.23 15.89 5 9.17 13.45 6 3.37 11.89 6 6.99 9.66 7 1.48 7.90 7 4.88 5.83 8 −
0.333.88 8 2.77 2.00 9 −
2.14−
0.159 0.71 −
1.8510 −
3.94−
4.1910 −
1.29−
5.7411 −
5.71−
8.2311 −
3.27−
9.6412 −
7.44−
12.2912 −
5.22−
13.5513 −
9.14−
16.3713 −
7.16−
17.4714 −
10.80−
20.4614 −
9.07−
21.4115 −
12.44−
24.5615 −
10.94−
25.3616 −
14.02−
28.6816 −
12.76−
29.3317 −
15.55−
32.8217 −
14.54−
33.33
- 0.15 mm from series of points defining blade section configurations as defined in the following charts;
-
15. A turbine bucket which is formed in such a manner that the blade sectional configuration is twisted from a blade root portion to a blade tip side, characterized in that when assuming two axial directions in a blade section of the bucket along horizontal plane and taking one axial direction as X axis and the other axial direction perpendicular to X axis as Y axis, the blade sections at the following heights from the blade root portion of the turbine bucket are formed in a range of ±
- 0.3 mm from series of points defining blade section configurations as defined in the following charts;
the blade section at the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 53.99 −
24.791 51.87 −
26.292 50.71 −
16.862 47.39 −
20.603 45.93 −
9.733 42.02 −
15.744 40.22 −
3.324 36.04 −
11.645 33.75 2.32 5 29.68 −
8.186 26.58 7.05 6 23.04 −
5.297 18.83 10.75 7 16.16 −
3.028 10.63 13.28 8 −
9.09−
1.459 2.14 14.59 9 −
1.88−
0.7010 −
6.4414.38 10 −
5.36−
0.8211 −
14.8712.76 11 −
12.54−
1.7912 −
22.929.77 12 −
19.56−
3.5813 −
30.335.43 13 −
26.32−
6.1714 −
36.95−
0.0414 −
32.71−
9.6015 −
42.63−
6.4815 −
38.72−
13.6416 −
47.46−
13.4316 −
44.51−
18.2417 −
51.73−
20.8517 −
49.97−
23.33the blade section at height 106 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 49.13 14.16 1 47.52 −
15.622 45.29 7.07 2 42.51 −
10.673 40.19 0.92 3 36.82 −
6.814 34.11 4.27 4 30.59 −
3.875 27.30 8.44 5 24.04 −
1.716 19.92 11.48 6 17.30 −
0.277 12.14 13.29 7 10.44 0.47 8 4.15 13.60 8 3.54 0.53 9 −
3.7612.48 9 −
3.31−
0.1910 −
11.4010.17 10 −
10.04−
1.7111 −
18.616.75 11 −
16.54−
4.0112 −
25.282.36 12 −
22.73−
7.0413 −
31.32−
2.8413 −
28.54−
10.7514 −
36.61−
8.8014 −
33.96−
15.0215 −
41.41−
15.1515 −
38.94−
19.8016 −
45.70−
21.8616 −
43.51−
24.9917 −
49.31−
28.8917 −
47.71−
30.56the blade section at height 170 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 46.60 −
8.041 45.34 −
9.432 42.19 −
1.832 40.02 −
5.283 36.62 3.32 3 34.09 −
2.234 30.25 7.44 4 27.74 −
0.155 23.32 10.52 5 21.17 1.11 6 16.00 12.48 6 14.51 1.68 7 8.44 13.15 7 7.82 1.63 8 0.91 12.18 8 1.19 0.80 9 −
6.349.97 9 5.32 −
0.7310 −
13.176.70 10 −
11.60−
3.0211 −
19.572.63 11 −
17.55−
6.0612 −
25.42−
2.1812 −
23.13−
9.7413 −
30.64−
7.6713 −
28.32−
13.9614 −
35.44−
13.5214 −
33.16−
18.5815 −
39.78−
19.7215 −
37.65−
23.5416 −
43.64−
26.2316 −
41.76−
28.8217 −
47.01−
33.0117 −
45.46−
34.39the blade section at height 300 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 40.93 6.66 1 40.66 5.15 2 35.55 10.84 2 34.66 6.83 3 29.24 13.45 3 28.45 7.41 4 22.54 14.73 4 22.23 7.15 5 15.71 14.78 5 16.06 6.20 6 8.98 13.66 6 10.03 4.64 7 2.56 11.37 7 4.16 2.57 8 −
3.568.37 8 −
1.520.00 9 −
9.154.47 9 −
6.90−
3.1410 −
14.29−
0.0110 −
11.98−
6.7411 −
19.06−
4.8811 −
16.72−
10.7812 −
23.50−
10.0412 −
21.12−
15.2013 −
27.59−
15.5013 −
25.23−
19.8814 −
31.33−
21.2014 −
29.04−
24.8115 −
34.70−
27.1215 −
32.59−
29.9316 −
37.74−
33.2216 −
35.98−
35.1617 −
40.43−
39.4917 −
39.14−
40.52the blade section at height 425 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 30.60 22.64 1 31.33 21.37 2 24.70 22.25 2 26.65 18.23 3 19.03 20.65 3 21.91 15.18 4 13.62 18.27 4 17.13 12.20 5 8.51 15.32 5 12.42 9.11 6 3.72 11.88 6 7.84 5.82 7 0.75 8.02 7 3.45 2.29 8 −
4.923.85 8 −
0.74−
1.479 −
8.90−
0.529 −
4.72−
5.4610 −
12.47−
5.2110 −
8.55−
9.5911 −
15.76−
10.1111 −
12.18−
13.9012 −
18.83−
15.1512 −
15.57−
18.4013 −
21.69−
20.3113 −
18.73−
23.0714 −
24.33−
25.5914 −
21.68−
27.8715 −
26.73−
30.9815 −
24.46−
32.7716 −
28.90−
36.4716 −
27.08−
37.7617 −
30.82−
42.0517 −
29.54−
42.83the blade section at height 550 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 18.75 29.44 1 19.92 28.64 2 14.59 26.71 2 17.67 24.27 3 11.03 23.23 3 14.95 20.19 4 7.89 19.37 4 11.99 16.27 5 5.01 15.31 5 9.06 12.33 6 2.34 11.11 6 6.24 8.31 7 −
0.156.80 7 3.50 4.23 8 −
2.512.42 8 0.87 0.09 9 −
4.78−
2.019 −
1.66−
4.1210 −
6.98−
6.4810 −
4.09−
8.3911 −
9.10−
10.9811 −
6.43−
12.7012 −
11.14−
15.5212 −
8.71−
17.0513 −
13.09−
20.1013 −
10.92−
21.4414 −
14.97−
24.7114 −
13.05−
25.8615 −
16.76−
29.3515 −
15.12−
30.3116 −
18.47−
34.0216 −
17.11−
34.8017 −
20.10−
38.7317 −
19.03−
39.32the blade section at height 660.4 mm from the blade root portion of the turbine bucket being as follows, back side front side No. X Y No. X Y 1 15.29 30.21 1 16.38 29.26 2 12.06 27.20 2 15.33 25.01 3 9.39 23.68 3 13.53 21.03 4 7.18 19.86 4 11.39 17.22 5 5.23 15.89 5 9.17 13.45 6 3.37 11.89 6 6.99 9.66 7 1.48 7.90 7 4.88 5.83 8 −
0.333.88 8 2.77 2.00 9 −
2.14−
0.159 0.71 −
1.8510 −
3.94−
4.1910 −
1.29−
5.7411 −
5.71−
8.2311 −
3.27−
9.6412 −
7.44−
12.2912 −
5.22−
13.5513 −
9.14−
16.3713 −
7.16−
17.4714 −
10.80−
20.4614 −
9.07−
21.4115 −
12.44−
24.5615 −
10.94−
25.3616 −
14.02−
28.6816 −
12.76−
29.3317 −
15.55−
32.8217 −
14.54−
33.33and further a shroud is provided which is formed at the tip portion of the bucket by respectively extending in back side and front side of the bucket. - View Dependent Claims (16)
- 0.3 mm from series of points defining blade section configurations as defined in the following charts;
Specification
-
- Resources
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-
Current Assigneemitsubishi hitachi power systems, ltd. (Mitsubishi Heavy Industries, Ltd.)
-
Original AssigneeHitachi, Ltd.
-
InventorsYamashita, Yutaka, Saito, Eiji, Ikeuchi, Kazuo, Takasumi, Masakazu, Yamazaki, Yoshiaki, Namura, Kiyoshi, Shikano, Yoshio, Katayose, Masumi
-
Granted Patent
-
Time in Patent OfficeDays
-
Field of Search
-
US Class Current416/235
-
CPC Class CodesF01D 5/141 Shape, i.e. outer, aerodyna...F01D 5/225 by shroudingF05D 2240/301 Cross-sectional characteris...
