CN214947274U

CN214947274U - Wear-resisting corrugated pipe compensator

Info

Publication number: CN214947274U
Application number: CN202121312660.5U
Authority: CN
Inventors: 张利平
Original assignee: Hefei Xinbo Welding Bellows Co ltd
Current assignee: Hefei Xinbo Welding Bellows Co ltd
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2021-11-30
Anticipated expiration: 2031-06-11

Abstract

The utility model discloses a wear-resisting formula corrugated pipe compensator, comprising a corrugated pipe, the both ends of bellows all are connected with the flange through the straight tube, and the inside of bellows is equipped with the inner tube, and the one end of inner tube is connected with the welded end, and the welded end passes through the weld part and one of them straight tube wall connection, and the other end of inner tube is connected with the free end, and free end sliding connection is at another straight tube inner wall. The utility model discloses simple structure, fluid flow in the bellows, because the existence of inner tube, the direct and inner tube contact friction of fluid, and contactless bellows, the friction that can reduce the bellows is impaired, prolongs its life-span, simultaneously, when fluid flows from another direction, because the straight tube is hugged closely to the free end, the fluid can not get into between inner tube and the bellows, leads to the fluid to be detained.

Description

Wear-resisting corrugated pipe compensator

Technical Field

The utility model relates to a bellows technical field especially relates to a wear-resisting formula corrugated expansion joint.

Background

The flowing high-temperature slag ash causes the pipeline to generate thermal deformation and abrades the inner wall of the pipeline, the main expression form of the thermal deformation of the pipeline is axial displacement, and axial thrust generated by the axial displacement is destructive and directly influences the stability and safety of the pipeline. In order to ensure the safe operation of the pipeline in engineering, a necessary pipeline compensator is arranged in the pipeline, and the axial displacement of the pipeline is absorbed or compensated through the pipeline compensator. At present, the bellows compensator which has relatively simple structure, low manufacturing cost and fast absorption and compensation reaction is mostly applied in engineering. In practical application, the corrugated pipe compensator still has the defects that the corrugated pipe with relatively thin pipe wall is easily worn by conveyed solid granular slag ash, although the protective sleeve is additionally arranged in the inner cavity in the prior art, the corrugated pipe can be prevented from being directly worn by the flowing slag ash. However, the problem of wear resistance of the protective sleeve itself is not solved, and the service life of the bellows compensator is still limited.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a wear-resistant corrugated pipe compensator.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a wear-resisting formula corrugated pipe compensator, includes the bellows, the both ends of bellows all are connected with the flange through the straight tube, and the inside of bellows is equipped with the inner tube, and the one end of inner tube is connected with the welded end, and the welded end passes through the weld part and is connected with one of them straight tube inner wall, and the other end of inner tube is connected with the free end, and free end sliding connection is at another straight tube inner wall.

Preferably, the inner pipe and the joint of the welding end and the free end are provided with smooth parts.

Preferably, waist holes are arranged on the connecting surface of the flange at equal intervals.

Preferably, the inner ring of the free end is provided with a chamfer.

Preferably, the inner wall of the inner pipe is provided with a wear-resistant layer.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses simple structure, fluid flow in the bellows, because the existence of inner tube, the direct and inner tube contact friction of fluid, and contactless bellows, the friction that can reduce the bellows is impaired, prolongs its life-span, simultaneously, when fluid flows from another direction, because the straight tube is hugged closely to the free end, the fluid can not get into between inner tube and the bellows, leads to the fluid to be detained.

Drawings

In order to more particularly and intuitively illustrate an embodiment of the present invention or a prior art solution, a brief description of the drawings needed for use in the description of the embodiment or the prior art will be provided below.

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic structural view of an inner tube;

fig. 3 is a schematic structural view of a flange.

In the figure: the corrugated pipe comprises a flange 1, a corrugated pipe 2, a welding part 3, a welding end 4, a free end 5, a smooth part 6, a straight pipe 7, an inner pipe 8 and a waist hole 9.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a wear-resistant corrugated pipe compensator comprises a corrugated pipe 2, two ends of the corrugated pipe 2 are connected with flanges 1 through straight pipes 7, an inner pipe 8 is arranged inside the corrugated pipe 2, one end of the inner pipe 8 is connected with a welding end 4, the welding end 4 is connected with the inner wall of one straight pipe 7 through a welding part 3, the other end of the inner pipe 8 is connected with a free end 5, and the free end 5 is slidably connected with the inner wall of the other straight pipe 7.

Specifically, smooth portions 6 are arranged at the joints of the inner tube 8, the welding end 4 and the free end 5, the inner ring of the free end 5 is provided with a chamfer, and because the inner tube 8, the welding end 4 and the free end 5 are not in the same plane, obstruction can be generated in fluid flow, and stable and excessive fluid can be realized by arranging the smooth portions 6.

Specifically, be equipped with equidistant distribution's waist hole 9 on the connecting surface of flange 1, waist hole 9's fitting surface is great, the cooperation of conveniently connecting more, and the inner wall of inner tube 8 is equipped with the wearing layer, through setting up the wearing layer, strengthens inner tube 8's wearability.

In the scheme, fluid flows in the corrugated pipe 2, because of the existence of the inner pipe 8, the fluid is directly contacted and rubbed with the inner pipe 8 and is not contacted with the corrugated pipe 2, so that the friction damage of the corrugated pipe 2 can be reduced, the service life of the corrugated pipe is prolonged, and meanwhile, when the fluid flows from the other direction, because the free end 5 is tightly attached to the straight pipe 7, the fluid cannot enter between the inner pipe 8 and the corrugated pipe 2, and the fluid is retained.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a wear-resisting formula corrugated pipe compensator, includes bellows (2), its characterized in that, the both ends of bellows (2) all are connected with flange (1) through straight tube (7), and the inside of bellows (2) is equipped with inner tube (8), and the one end of inner tube (8) is connected with welding end (4), and welding end (4) are connected with one of them straight tube (7) inner wall through weld part (3), and the other end of inner tube (8) is connected with free end (5), and free end (5) sliding connection is in another straight tube (7) inner wall.

2. A wear-resistant bellow compensator according to claim 1, c h a r a c t e r i z e d in that the inner tube (8) and the joint of the weld end (4) and the free end (5) are provided with a smooth portion (6).

3. A wear-resistant bellow compensator according to claim 2, characterized in that equally spaced waist holes (9) are provided in the connection surface of the flange (1).

4. A wear-resistant bellow compensator according to claim 3, characterized in that the inner ring of the free end (5) is chamfered.

5. A wear-resistant bellow compensator according to claim 4, characterized in that the inner wall of the inner tube (8) is provided with a wear resistant layer.