Coke drum inlet line alignment device

• US 4,995,413 A
• Filed: 12/15/1989
• Issued: 02/26/1991
• Est. Priority Date: 12/15/1989
• Status: Expired due to Term

• Current Assignee: Atlantic Richfield Company (BP PLC)
• Original Assignee: Atlantic Richfield Company (BP PLC)
• Inventors: Neher, Ralph A., Case, M. Bruce, Gullikson, Darryl C., Torres, Daniel L.
• Primary Examiner(s): CHAMBERS, A MICHAEL
• Application Number:
  US07/451,401
• Time in Patent Office: 438 Days
• Field of Search: 141/279, 141/387, 141/388, 141/1, 137/615, 137/1, 196/135, 202/262, 222/74, 222/538
• US Class Current: 137/1
• CPC Class Codes: B67D 7/002 using articulated pipes
• CPC Class Codes: B67D 7/06 Details or accessories
• CPC Class Codes: C10B 55/00 Coking mineral oils, bitumen, tar, and the like or mixtures thereof with solid carbonaceous material cracking oils C10G
• CPC Class Codes: F16L 3/16 with special provision allowing movement of the pipe F16L3/01 takes precedence; supporting pipes or cables inside other pipes or sleeves F16L7/00
• CPC Class Codes: Y10T 137/0318 Processes
• CPC Class Codes: Y10T 137/8807 Articulated or swinging flow conduit

Abstract

Movement of a coke drum feed line relative to the feed inlet using apparatus comprising a plurality of means for moving the feed line in generally mutually orthogonal directions. One end of each moving means is pivotally attached to a support means by spherical bearings, while the other end is in direct or indirect engagement with the feed line. In a preferred embodiment, the feed line is supported by a bracket which extends generally longitudinally along the exterior surface and to which the moving means are attached. Suitably, the moving means comprises hydraulic or pneumatic cylinders provided with shafts extending axially from one end of the cylinders, whereby movement of the shaft is effected by introducing fluid into the cylinder so as to move a piston associated with the shaft.

Claims

1. A method for moving a first line having a first end flange to a second line having a second end flange, wherein said first line is movable in mutually orthogonal x, y and z directions and said second line is substantially immovable, said method comprising:

actuating means for moving said first line in a first of said x, y and z directions so as to decrease distance between said first end flange and said second end flange in said first direction;

actuating means for moving said first line in a second of said x, y and z directions so as to decrease distance between said first end flange and said second end flange in said second direction; and

actuating means for moving said first line in a third of said x, y and z directions so as to decrease distance between said first end flange and said second end flange in said third direction.

2. A method according to claim 1, wherein said actuating steps comprise introducing fluid into a hydraulic cylinder so as to move a piston sealing said cylinder at one end thereof.

3. A method according to claim 1, wherein at least one of said actuating steps is effected at a location remote from said first line.

4. Apparatus for connecting a first line to a second line, comprising:

a support structure for said first line; and

first, second and third moving means for moving said first line relative to said support structure, each of said moving means being pivotally attached at a first end thereof to said first line and at a second, opposite end thereof to said support structure, each of said moving means further being oriented with respect to each other moving means for movement of said first line in generally mutually orthogonal directions.

5. Apparatus according to claim 4, wherein each of said moving means comprises a hydraulic cylinder attached at one end thereof to said support structure;

a shaft extending axially from a second, opposite end of the cylinder and attached at an end thereof opposite said cylinder to said first line; and

a fluid source attached to said cylinder for actuating said shaft.

6. Apparatus according to claim 5, further comprising a bracket extending generally longitudinally along an exterior surface of said first line, wherein each of said shafts is pivotally attached to said bracket.

7. Apparatus according to claim 4, wherein said moving means are pivotally attached to said first line and said support structure by spherical bearings.

8. Apparatus according to claim 4, wherein said support structure comprises a first support element and a second support element, each of said support elements comprising a vertical support member and a horizontal support member joined at a first end thereof to a lower end of said vertical support member in a generally perpendicular manner, and said respective horizontal support members of said first and second support elements being joined together at their respective second ends in a generally perpendicular manner.

9. Apparatus according to claim 8, wherein said horizontal support member of said first support element runs substantially parallel to said first line and said horizontal support member of said second support element runs substantially perpendicular to said first line.

10. Apparatus according to claim 8, wherein each of said support elements further comprises a crossbeam member connecting an upper end of a respective vertical support member and said corresponding horizontal support member at or near said second end thereof.

11. Apparatus according to claim 8, wherein said support structure further comprises a support frame.

12. Apparatus according to claim 8, wherein said first moving means is pivotally attached to said vertical support member of said first support element, said second moving means is pivotally attached to said horizontal support member of said first support element, and said third moving means is pivotally attached to said vertical support member of said second support element.

13. Apparatus according to claim 4, wherein said first line and said second line each terminate in an end flange, the end flange of said first line being adapted to match the end flange of said second line.

14. Apparatus according to claim 4, wherein at least one of said first, second and third moving means is adapted for control at a location remote from said support structure.