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Internal pressure self-sealing rotary compensator

A rotary compensator, self-sealing technology, applied in the field of compensation, can solve the problems of single end face sealing, difficult to meet long-term safe operation, etc., and achieve the effect of improving high-pressure sealing performance, simple structure, and reducing performance indicators

Pending Publication Date: 2022-05-10
宋章根 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to design an internal pressure self-sealing rotary compensator with a tapered surface to solve the problem that the existing rotary compensator cannot meet the long-term safe operation by relying on a single end face seal.

Method used

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  • Internal pressure self-sealing rotary compensator
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  • Internal pressure self-sealing rotary compensator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as figure 1 shown.

[0027] An internal pressure self-sealing rotary compensator, comprising a fixed tube 1 and a rotatable tube 2, the inner diameters of the main parts of the fixed tube 1 and the rotatable tube 2 are the same, and the end of the fixed tube 1 has a tapered opening to form a variable diameter tube, its tapered open end is connected with a sealing seat 3 by welding, such as figure 1 shown. The inner cavity of the sealing seat 3 is provided with a convex rotating seat 4, and the inner diameter of the rotating seat 4 matches the outer diameter of the rotatable tube 2; the outer side of the rotating seat 4 is equipped with a ring surface seal 5 (conventional pressure-resistant seals can be used) or powder), the ring surface seal 5 is fixed in the ring surface seal cavity composed of the outer end surface of the rotating seat 2, the inner surface of the sealing seat 3 and the rotatable tube 2 through the gland 6; the gland 6 is fixed through the faste...

Embodiment 2

[0029] Such as figure 2 shown.

[0030] An internal pressure self-sealing rotary compensator, comprising a fixed tube 1 and a rotatable tube 2, the inner diameters of the main parts of the fixed tube 1 and the rotatable tube 2 are the same, and the end of the fixed tube 1 has a tapered opening to form a variable diameter pipe, its tapered open end is connected with a sealing seat 3 by welding, and the inner cavity of the sealing seat 3 is provided with a vertical end surface perpendicular to the axis of the rotatable pipe 2, an annulus parallel to the axis and an acute angle with the axis The rotating seat 4 composed of the conical surface, the inner diameter of the annular surface matches the outer diameter of the rotatable pipe 2; An annular sealing chamber is formed, in which an annular sealing member 5 is installed and the axial positioning is realized through a gland 6, and the gland 6 is connected with the sealing seat 3 through a fastener 12; the rotatable tube 2 The...

Embodiment 3

[0032] Such as image 3 shown.

[0033]An internal pressure self-sealing rotary compensator, comprising a fixed tube 1 and a rotatable tube 2, the inner diameters of the main parts of the fixed tube 1 and the rotatable tube 2 are the same, and the feature is that the end of the fixed tube 1 has a tapered opening A reducing pipe is formed, and its tapered open end is connected with a sealing seat 3 by welding, and the inner cavity of the sealing seat 3 is provided with a rotating seat 4 composed of a polyhedron, which is composed of a first end face 401, a second end face 402, a first ring surface 403 and the third tapered surface 404, the end of the rotatable tube 2 is provided with the first tapered surface 9 matching with the third tapered surface 404 to realize the sealing of the tapered surface, and the first tapered surface 9 connected with the first tapered surface 9 Three end surfaces 901, a second annular surface 902 connected to the three end surfaces 901, and a seco...

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Abstract

An internal pressure self-sealing rotary compensator comprises a fixed pipe (1) and a rotatable pipe (2) and is characterized in that the end of the fixed pipe is provided with a conical opening, the conical opening end of the fixed pipe is connected with a sealing seat (3), and an inner cavity of the sealing seat is provided with a rotating seat (4) protruding inwards; a ring surface sealing element (5) is mounted on the outer side of the rotating seat and is fixed in the ring surface sealing cavity through a gland (6); an end face self-sealing piece (7) is installed on the inner side of the rotating base, the outer side face of the end face self-sealing piece abuts against an arc-shaped annular convex face (8) on the rotatable pipe, the outer section of the arc-shaped annular convex face is in smooth transition with a first outer conical face (9) at the end of the rotatable pipe, and the inner section of the arc-shaped annular convex face intersects with the outer surface of the rotatable pipe. The first outer conical surface is connected with a second outer conical surface (10), and the taper of the second outer conical surface is matched with that of the conical opening in the end part of the fixed pipe. The device is simple in structure and more convenient to manufacture. Performance indexes of the end face sealing piece can be reduced, and production cost is reduced.

Description

technical field [0001] The invention relates to a compensating technology, in particular to a device for compensating the length of a conveying pipeline, in particular to an internal pressure self-sealing rotary compensator. Background technique [0002] At present, the rotary compensator from the Chinese patent ZL2006100413011 has been widely used. This kind of compensator can meet the compensation of large pipe diameter and long distance through reasonable combination. It has been applied to various gas-liquid transmission pipelines, which greatly reduces the pipeline compensation cost. , improving security. However, the applicant found that the existing compensator must be equipped with a high-pressure-resistant sealing ring, and the sealing performance and pressure-resistant performance of the sealing ring are too high. It is easy to be damaged during use and must be replaced regularly to ensure safe operation. . This situation is closely related to the structure of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L51/00F16L27/08
CPCF16L51/00F16L27/08
Inventor 宋章根宋苏炜宋治承
Owner 宋章根
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