Centrifugal compressor and water chilling unit having the same
First Claim
1. A centrifugal compressor, comprising:
- an impeller (2);
a diffuser (3), the diffuser (3) comprising a pressurization passage (31), wherein air flows through the impeller (2) and enters an inlet of the pressurization passage (31);
a volute (8), configured to collect the air pressurized by the diffuser (3);
an exhaust diffuser pipe (9), fluidly connected with the volute (8), an extending direction of the exhaust diffuser pipe (9) inclining downwards with respect to a horizontal plane;
a gear box (5); and
a coolant passage (4) configured to import a coolant from the outside, wherein the coolant passage (4) comprises;
a liquid spraying hole (41) provided at an inlet end of the pressurization passage (31);
a first flow guide hole (42) provided in an interior of a side wall of the gear box (5) and fluidly connected with the liquid spraying hole (41); and
a second flow guide hole (43) configured to fluidly connect each of the plurality of liquid spraying holes (41) with the first flow guide hole (42).
1 Assignment
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Accused Products
Abstract
The invention discloses a centrifugal compressor and a water chilling unit having the same. The centrifugal compressor includes an impeller (2), a diffuser (3), a volute (8) and an exhaust diffuser pipe (9), the diffuser (3) including a pressurization passage, air flowing through the impeller (2) entering an inlet of each pressurization passage, the volute (8) being configured to collect the air pressurized by the diffuser (3), the exhaust diffuser pipe being communicated with the volute, and an extending direction of the exhaust diffuser pipe inclining downwards with respect to a horizontal plane. The extending direction of the exhaust diffuser pipe communicated with the volute inclines downwards with respect to the horizontal plane, so that noise and airflow losses of high-temperature and high-pressure air in the exhaust diffuser pipe expelled from the centrifugal compressor due to bending of the pipe can be reduced, and the noise can be effectively reduced.
13 Citations
16 Claims
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1. A centrifugal compressor, comprising:
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an impeller (2); a diffuser (3), the diffuser (3) comprising a pressurization passage (31), wherein air flows through the impeller (2) and enters an inlet of the pressurization passage (31); a volute (8), configured to collect the air pressurized by the diffuser (3); an exhaust diffuser pipe (9), fluidly connected with the volute (8), an extending direction of the exhaust diffuser pipe (9) inclining downwards with respect to a horizontal plane; a gear box (5); and a coolant passage (4) configured to import a coolant from the outside, wherein the coolant passage (4) comprises; a liquid spraying hole (41) provided at an inlet end of the pressurization passage (31); a first flow guide hole (42) provided in an interior of a side wall of the gear box (5) and fluidly connected with the liquid spraying hole (41); and a second flow guide hole (43) configured to fluidly connect each of the plurality of liquid spraying holes (41) with the first flow guide hole (42). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification