CN2599221Y

CN2599221Y - Telescopic compensator

Info

Publication number: CN2599221Y
Application number: CNU032114788U
Authority: CN
Inventors: 岩邱; 邱岩; 刘秉权; 李世强
Original assignee: 庞艳文
Priority date: 2003-02-19
Filing date: 2003-02-19
Publication date: 2004-01-14
Anticipated expiration: 2013-02-19

Abstract

The utility model relates to a telescopic compensator which belongs to a component of oil exploitation machinery. An upper adapter 1 is connected with a center pipe 2 by thread, a upper connector 3 is sleeved on the center pipe 2 and is connected with an outer center pipe by thread, a rubber cylinder 4 and a distance ring 5 are respectively sleeved on the outer center pipe which is sleeved with a press cap 7, a centralizer 8 is sleeved with an outer working casing 9, a clip spring 11 is sleeved on a clip spring unit 10, the clip spring unit is sleeved on a clip spring seat 12 which is sleeved on an outer center pipe 6, a piston 13 is sleeved on the outer center pipe 6, a guide unit 14 is connected with the outer working casing 9 by thread and a lower adaptor 15 is connected with the center pipe 2 by thread. The utility model has the advantages of avoiding sand entering the compensator, preventing the inner pipe clipping with the pipe, saving a set of separator, making installation work simple and ensuring the normal proceeding of oil exploitation, along with novel structure.

Description

Telescopic compensator

Technical field the utility model belongs to the parts of oil exploitation machinery.

The expansion bend that background technology is used in the oil field at present, its shortcoming is to be easy to enter sand, and interior pipe, outer tube have been blocked, and causes separator to lose efficacy, and influences normally fuel-displacedly, makes the oil field can not ordinary production.

Summary of the invention the utility model provides a kind of telescopic compensator, to solve the problem that present expansion bend easily enters sand.The technical scheme that the utility model is taked is: top connection 1 and central tube 2 are threaded, upper binding head 3 is socketed on this central tube, this upper binding head is threaded with exterior central tube, packing element 4 and spacer ring 5 are socketed in respectively on this exterior central tube, pressure cap 7 and this exterior central tube socket, centralizer body 8 and outer working tube 9, jump ring 11 and 10 sockets of jump ring body, this jump ring body is socketed on the clip spring seat 12, this clip spring seat is socketed on the exterior central tube 6, piston 13 is socketed on the exterior central tube 6, and guide way 14 is threaded with outer working tube 9, and lower contact 15 is threaded with central tube 2.During use, the water of injection enters from top connection, and the aperture on central tube and exterior central tube promotes piston, drives pressure cap and removes to push packing element, makes its envelope.

Advantage of the present utility model is: novel structure, and adopt the utility model can prevent that as expansion loop sand from entering expansion loop, tube and tube blocks in preventing, and can save a cover separator, makes installation work simple, and recover the oil and normally carry out in the assurance oil field.

Appended drawings is the utility model structural representation.

The specific embodiment

Embodiment:

Top connection 1 and central tube 2 are threaded, upper binding head 3 is socketed on this central tube, this upper binding head is threaded with exterior central tube, packing element 4 and spacer ring 5 are socketed in respectively on this exterior central tube, pressure cap 7 and this exterior central tube socket, centralizer body 8 and outer working tube 9, jump ring 11 and 10 sockets of jump ring body, this jump ring body is socketed on the clip spring seat 12, this clip spring seat is socketed on the exterior central tube 6, piston 13 is socketed on the exterior central tube 6, and guide way 14 is threaded with outer working tube 9, and lower contact 15 is threaded with central tube 2.

Claims

1, a kind of telescopic compensator, it is characterized in that: top connection (1) and central tube (2) are threaded, upper binding head (3) is socketed on this central tube, this upper binding head is threaded with exterior central tube, packing element (4) and spacer ring (5) are socketed in respectively on this exterior central tube, pressure cap (7) and this exterior central tube socket, centralizer body (8) and outer working tube (9), jump ring (11) and jump ring body (10) socket, this jump ring body is socketed on the clip spring seat (12), and this clip spring seat is socketed on the exterior central tube (6), and piston (13) is socketed on the exterior central tube (6), guide way (14) is threaded with outer working tube (9), and lower contact (15) is threaded with central tube (2).