CN2457428Y

CN2457428Y - Sealed pipeline corrugated pipe

Info

Publication number: CN2457428Y
Application number: CN 00267840
Authority: CN
Inventors: 那清德
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-12-29
Filing date: 2000-12-29
Publication date: 2001-10-31
Anticipated expiration: 2010-12-29

Abstract

The utility model relates to a sealed type pipeline corrugated pipe, a sealing ring is arranged between an end connection pipe and an adapting end connection pipe, and the outer walls of the end connection pipe and the adapting end connection pipe are respectively sheathed with corrugated pipes. The sealed pipe can cover the end connection pipe, the adapting end connection pipe and the corrugated pipes sheathed out of the outer walls, and the end surface of the sealed pipe is provided with slits respectively between the outer walls of the end connection pipe and the adapting end connection pipe. The sealed pipe can form a sealed space between the front and the back corrugated pipes and the outer walls of the end connection pipe and the adapting end connection pipe, and the sealed pipe is provided with a limited slide way and a guide way respectively between the end connection pipe and the adapting end connection pipe. The utility model can not be affected by the impurities and the precipitate in the pipes and has the advantages of large telescoping amount and good compensating effect, and the utility model can be suitable for large temperature change.

Description

Sealed corrugated pipe for pipeline

The utility model relates to a kind of industrial pipeline compensator, especially a kind of bellows.

At present, known corrugated pipe for pipeline (compensator) is at outside weldings one bellows of pipeline with the cover interface tube.Its shortcoming is in the pipeline, and the impurity in the medium easily remains in the place, slit between jointing pipe nipple and the bell end adapter, and in the bellows, thereby reduce the dilatability of bellows, not even flexible, the concavo-convex resistance of this outward corrugated tube is big, does not reach the effect of compensation of pipeline.

The purpose of this utility model provides a kind of inside diameter of bel and does not contact the interior medium of pipeline, and contact with external air, be not subjected to impurity and sedimentary influence the in the pipeline, extending amount is big, compensation effect is good, and when being subjected to a side pressure, it can produce the bending of certain radian, thereby compensate, can adapt to the sealed corrugated pipe for pipeline of big temperature variation.

The purpose of this utility model is achieved in that

The utility model comprises pipe nipple, bell end is taken over, flange, bellows, pipe nipple inserts in the bell end adapter, it is characterized in that: the front end of pipe nipple is an expansion shape mouth, the afterbody that bell end is taken over is a contraction shape mouth, the annular space that forms between contraction shape mouth that the expansion shape mouth of pipe nipple and outer wall thereof and bell end are taken over and inwall thereof is built-in with seal ring, the outer wall that pipe nipple and bell end are taken over is with bellows respectively, sealed pipe with pipe nipple and bell end are taken over and they outer walls overlapped bellows cover within it, before the sealed pipe, between the outer wall that ear end face and pipe nipple and bell end are taken over the slit is arranged, sealed pipe with before, form seal space between the outer wall that latter two bellows and pipe nipple and bell end are taken over, do not pass through medium in the bellows, and be connected with ambient air, before the sealed pipe, ear end face is provided with limit sliding chutes and guide rail respectively and between pipe nipple and the bell end adapter.

The front end of the bellows that the pipe nipple outer wall is overlapped and the welding of its outer wall, ear end face terminal and sealed pipe welds, and bell end is taken over the front-end face welding of the front end and the sealed pipe of the bellows that outer wall overlapped, and terminal and its outer wall welds; The expansion shape mouth of pipe nipple contacts for point with the inwall that bell end is taken over, and bell end is taken over contraction shape mouth and also contacted for point with the outer wall of pipe nipple.

The sealed pipe lower end is provided with drain pipe.

Limit sliding chutes is located on the front and rear end of sealed pipe, and the outer wall that pipe nipple and bell end are taken over is fixed with guide rail separately, cooperates with limit sliding chutes.

Bellows is welded by opening dislocation bourdon tube and clamping plate, the thickness ratio open dislocation spring thickness of pipe of clamping plate.

The thickness of clamping plate is 2-3 times of opening dislocation bourdon tube thickness.

The utility model is owing to adopt said structure, its inside diameter of bel does not contact the medium in the pipeline, and contact with external air, be not subjected to impurity and sedimentary influence the in the pipeline, extending amount is big, compensation effect is good, because the expansion shape mouth of pipe nipple contacts for point with the inwall that bell end is taken over, it also is that point contacts with the outer wall of pipe nipple that bell end is taken over contraction shape mouth, so when being subjected to a side pressure, it can produce the bending of certain radian, thereby compensate, can adapt to big temperature variation, because bellows is formed by opening dislocation bourdon tube and clamping plate, its crushing resistance obviously strengthens in addition.

Below in conjunction with drawings and Examples the utility model is further described:

Fig. 1 is a plan view of the present utility model.

Fig. 2 is a partial side view of the present utility model.

Fig. 3 is the structural drawing of bellows.

See Fig. 1, the front end of pipe nipple 1 is an expansion shape mouth, the afterbody of bell end adapter 5 is a contraction shape mouth, take over the annular space that forms between 5 contraction shape mouth and the inwall thereof at the expansion shape mouth of pipe nipple 1 and outer wall thereof and bell end and be built-in with seal ring 3, the outer wall of pipe nipple 1 and bell end adapter 5 is with bellows 10,4 respectively, sealed pipe 2 with pipe nipple 1 and bell end take over 5 and bellows 10,4 covers that they outer walls overlapped within it, between the outer wall of the front and rear end of sealed pipe 2 and pipe nipple 1 and bell end adapter 5 slit is arranged; The front end of the bellows 10 that pipe nipple 1 outer wall is overlapped and the welding of its outer wall, terminal ear end face with sealed pipe 2 welds, bell end is taken over the front-end face welding of the front end and the sealed pipe 2 of the bellows 4 that 5 outer walls are overlapped, terminal and its outer wall welding make to form seal space between the outer wall of sealed pipe 2 and former and later two bellowss 10,4 and pipe nipple 1 and bell end adapter 5 thus; The expansion shape mouth of pipe nipple 1 contacts for point with the inwall of bell end adapter 5, and it also is that point contacts with the outer wall of pipe nipple 1 that bell end is taken over 5 contraction shape mouths, and when being subjected to a side pressure, it can produce the bending of certain radian, thereby compensates; Do not pass through medium in the bellows 10,4, and be connected, be not subjected to the influence of impurity in the medium with ambient air; Sealed pipe 2 lower ends are provided with drain pipe 7.

See Fig. 2, two limit sliding chutes 9 correspondences are located on the front and rear end of sealed pipe, and the outer wall that pipe nipple and bell end are taken over is fixed with two corresponding guide rail 6 separately, cooperates with two limit sliding chutes 9 respectively, plays a part guiding.

See Fig. 3, bellows 10,4 is welded by opening dislocation bourdon tube 11 and clamping plate 12, and the thickness ratio open dislocation bourdon tube 11 of clamping plate 12 is thick.

The thickness of clamping plate 12 is 2-3 times of opening dislocation bourdon tube 11 thickness.

Claims

1, a kind of sealed corrugated pipe for pipeline, comprise pipe nipple, bell end is taken over, flange, bellows, pipe nipple inserts in the bell end adapter, it is characterized in that: the front end of pipe nipple is an expansion shape mouth, the afterbody that bell end is taken over is a contraction shape mouth, the annular space that forms between contraction shape mouth that the expansion shape mouth of pipe nipple and outer wall thereof and bell end are taken over and inwall thereof is built-in with seal ring, the outer wall that pipe nipple and bell end are taken over is with bellows respectively, sealed pipe with pipe nipple and bell end are taken over and they outer walls overlapped bellows cover within it, before the sealed pipe, between the outer wall that ear end face and pipe nipple and bell end are taken over the slit is arranged, sealed pipe with before, form seal space between the outer wall that latter two bellows and pipe nipple and bell end are taken over, do not pass through medium in the bellows, and be connected with ambient air; The sealed pipe front and rear end is provided with limit sliding chutes and guide rail respectively and between pipe nipple and the bell end adapter.

2, sealed corrugated pipe for pipeline as claimed in claim 1, it is characterized in that: the front end of the bellows that the pipe nipple outer wall is overlapped and the welding of its outer wall, terminal ear end face with sealed pipe welds, bell end is taken over the front-end face welding of the front end and the sealed pipe of the bellows that outer wall overlapped, terminal and its outer wall welding; The expansion shape mouth of pipe nipple contacts for point with the inwall that bell end is taken over, and bell end is taken over contraction shape mouth and also contacted for point with the outer wall of pipe nipple.

3, sealed corrugated pipe for pipeline as claimed in claim 1 is characterized in that: the sealed pipe lower end is provided with drain pipe.

4, sealed corrugated pipe for pipeline as claimed in claim 1 is characterized in that: limit sliding chutes is located on the front and rear end of sealed pipe, and the outer wall that pipe nipple and bell end are taken over is fixed with guide rail separately, cooperates with limit sliding chutes.

5, sealed corrugated pipe for pipeline as claimed in claim 1 is characterized in that: bellows is welded by opening dislocation bourdon tube and clamping plate, the thickness ratio open dislocation spring thickness of pipe of clamping plate.

6, sealed corrugated pipe for pipeline as claimed in claim 4 is characterized in that: the thickness of clamping plate is 2-3 times of opening dislocation bourdon tube thickness.