CN219282681U

CN219282681U - Rotary compensator

Info

Publication number: CN219282681U
Application number: CN202223459645.0U
Authority: CN
Inventors: 葛桂兵; 程华林; 阴颖飞
Original assignee: Jiangsu Wuxing Corrugated Pipe Co ltd
Current assignee: Jiangsu Wuxing Corrugated Pipe Co ltd
Priority date: 2022-12-24
Filing date: 2022-12-24
Publication date: 2023-06-30
Anticipated expiration: 2032-12-24

Abstract

And the rotary compensator is used for compensating the expansion and contraction of the pipeline. The novel anti-collision device comprises an outer cylinder (1) and an inner cylinder (13), wherein one end of the inner cylinder extends into the outer cylinder, a bag body (3) is arranged between the inner cylinder and the outer cylinder, and a left baffle ring (2) and a right baffle ring (12) are respectively arranged on the left side and the right side of the bag body; the surface seal welding at the urceolus has cylinder liner (4), has inserted piston (5) in the cylinder liner, is equipped with sealing washer (10) between piston and the cylinder liner, and the upper portion of piston has the blind hole, has placed spring (6) in the blind hole, has inserted pressure head (7) in the blind hole, and the pressure head pushes down the spring, and sealing connection has honeycomb duct (15) on the cell body, and the honeycomb duct passes the wall of urceolus and communicates with the cylinder liner, and the cell body is made by flexible material, is full of liquid in cell body and the cylinder liner. The beneficial effects are that the spring presses the piston, the pressure of the liquid in the cylinder sleeve is transmitted to the bag body, the bag body expands, and the inner cylinder and the outer cylinder are kept sealed; after the surface of the bag body is worn, the wear of the bag body is automatically repaired.

Description

Rotary compensator

Technical Field

The utility model relates to a rotary compensator which is used for compensating expansion caused by heat and contraction caused by cold of a pipeline.

Background

The rotary compensator is installed in the pipeline to compensate for expansion and contraction of the pipeline to protect the pipeline from damage. The structure of the rotary compensator generally comprises an outer cylinder and an inner cylinder, one end of the inner cylinder extends into the outer cylinder, sealing filler is arranged between the inner cylinder and the outer cylinder, and when the pipeline generates heat expansion and cold contraction, the inner cylinder and the outer cylinder rotate to absorb the axial displacement of the pipeline. The relative movement between the inner cylinder and the outer cylinder can lead to abrasion of the sealing filler, so that the loss of the sealing filler is caused, and the sealing performance of the rotary compensator is reduced.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides a rotary compensator which can automatically repair the abrasion of a sealing element and effectively maintain the tightness of the rotary compensator.

The technical scheme of the utility model is that the rotary compensator comprises an outer cylinder 1 and an inner cylinder 13, wherein one end of the inner cylinder extends into the outer cylinder, and the rotary compensator is characterized in that a bag body 3 is arranged between the inner cylinder and the outer cylinder, a left baffle ring 2 is arranged on the left side of the bag body and fixedly connected to the inner wall of the outer cylinder, the inner wall of the baffle ring is matched with the outer circle of the inner cylinder, a right baffle ring 12 is arranged on the right side of the bag body, the outer wall of the right baffle ring is matched with the inner wall of the outer cylinder, the inner wall of the right baffle ring is matched with the outer circle of the inner cylinder, and the right baffle ring is connected to the outer cylinder through a pin 10; the surface of the outer cylinder is hermetically welded with a cylinder sleeve 4, a piston 5 is inserted in the cylinder sleeve, a sealing ring 10 is arranged between the piston and the cylinder sleeve, a blind hole is formed in the upper part of the piston, a spring 6 is placed in the blind hole, a pressure head 7 is inserted in the blind hole, the pressure head presses the spring, a guide pipe 15 is hermetically connected to the bag body, the guide pipe penetrates through the wall of the outer cylinder to be communicated with the cylinder sleeve, the guide pipe is hermetically fixed on the outer cylinder, the bag body is made of flexible materials, and the bag body and the cylinder sleeve are filled with liquid.

The utility model has the advantages that the spring presses the piston, the pressure of the liquid in the cylinder sleeve is transmitted to the bag body, the bag body expands radially and axially uniformly, and the inner cylinder and the outer cylinder are kept sealed; when the inner cylinder and the outer cylinder rotate relatively, the abrasion loss of the surface of the bag body is uniform, the pressure of the liquid in the cylinder sleeve is continuously transmitted to the bag body due to the elasticity of the spring, the abrasion of the bag body is automatically repaired, and the sealing performance of the rotary compensator is maintained. When the elasticity of the spring is insufficient to repair the abrasion of the capsule body, the bolt can be further tightened to strengthen the elasticity of the spring.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

The reference numerals respectively denote: the device comprises a 1-outer cylinder, a 2-left baffle ring, a 3-bag body, a 4-cylinder sleeve, a 5-piston, a 6-spring, a 7-pressure head, an 8-cover plate, 9-bolts, a 10-sealing ring, 11-pins, a 12-right baffle ring, a 13-inner cylinder, a 14-protruding section and 15-flow guide pipes.

Detailed Description

Specific embodiments of the present utility model will now be described with reference to the accompanying drawings.

The utility model provides a rotary compensator, it includes urceolus 1, inner tube 13, the one end of inner tube is stretched in the urceolus, is equipped with the bag body 3 between inner tube and the urceolus, and the left side of bag body is equipped with left baffle ring 2, and left baffle ring fixed connection is on the inner wall of urceolus, and the inner wall of baffle ring cooperatees with the inner tube excircle, and the right side of bag body is equipped with right baffle ring 12, and the outer wall of right baffle ring cooperatees with the inner wall of urceolus, and the inner wall of right baffle ring cooperatees with the excircle of inner tube, and right baffle ring passes through pin 11 to be connected on the urceolus.

In order to prevent the inner cylinder from axial movement in the outer cylinder, a raised section 14 is provided in the middle of the inner cylinder, the raised section being located between the left and right stop rings.

The surface of the outer cylinder is hermetically welded with a cylinder sleeve 4, a piston 5 is inserted in the cylinder sleeve, a sealing ring 10 is arranged between the piston and the cylinder sleeve, a blind hole is formed in the upper portion of the piston, a spring 6 is placed in the blind hole, a pressure head 7 is inserted in the blind hole, the pressure head is placed on the spring, a bolt 9 is penetrated at the edge of a cover plate 8 on the upper portion of the pressure head, the lower portion of the bolt is screwed on the flange edge of the cylinder sleeve, a guide pipe 15 is hermetically connected to the bag body, the guide pipe penetrates through the wall of the outer cylinder and is communicated with the cylinder sleeve, the guide pipe is hermetically fixed on the outer cylinder, the bag body is made of flexible materials (such as silicon rubber or ethylene propylene diene monomer), and the bag body and the cylinder sleeve are filled with liquid.

Before the rotary compensator is used, the piston is taken out first, then liquid is injected into the cylinder sleeve, when a certain liquid level is reached, the piston, the spring and the pressure head are inserted, the cover plate is screwed by the bolts, the bag body is expanded, and the sealing between the outer cylinder and the inner cylinder is realized.

Claims

1. The rotary compensator comprises an outer cylinder (1) and an inner cylinder (13), wherein one end of the inner cylinder extends into the outer cylinder, and is characterized in that a bag body (3) is arranged between the inner cylinder and the outer cylinder, a left baffle ring (2) is arranged on the left side of the bag body, the left baffle ring is fixedly connected to the inner wall of the outer cylinder, a right baffle ring (12) is arranged on the right side of the bag body, and the right baffle ring is connected to the outer cylinder through a pin (11); the surface seal welding at the urceolus has cylinder liner (4), has inserted piston (5) in the cylinder liner, is equipped with sealing washer (10) between piston and the cylinder liner, and the upper portion of piston has the blind hole, has placed spring (6) in the blind hole, has inserted pressure head (7) in the blind hole, and the pressure head pushes down the spring, and sealing connection has honeycomb duct (15) on the cell body, and the honeycomb duct passes the wall of urceolus and communicates with the cylinder liner, and the honeycomb duct seals and fixes on the urceolus, and the cell body is made by flexible material, is full of liquid in cell body and the cylinder liner.

2. A rotary compensator according to claim 1, characterized in that a raised section (14) is provided in the middle of the inner barrel, which raised section is located between the left and right stop rings.