CN211398966U

CN211398966U - Pipeline compensator with damper

Info

Publication number: CN211398966U
Application number: CN201922412988.3U
Authority: CN
Inventors: 吉慧萍
Original assignee: Jiangsu Hengfeng Bellows Co ltd
Current assignee: Jiangsu Hengfeng Bellows Co ltd
Priority date: 2019-12-29
Filing date: 2019-12-29
Publication date: 2020-09-01
Anticipated expiration: 2029-12-29

Abstract

The utility model relates to a set up pipeline compensator of attenuator, including bellows and honeycomb duct, the bellows both ends are taken over with a left side and are connected with the right side, and the outer end that takes over with the right side is equipped with left flange and right flange respectively for a left side, and the inner wall connection is taken over with a left side to honeycomb duct one end and is fixed, and the surface of left flange and right flange is equipped with left otic placode and auris dextra plate, connects through the attenuator between left otic placode and the auris dextra plate, and the attenuator both ends are equipped with universal joint respectively for the attenuator can rotate for the axis of compensator. Compared with the prior art, the utility model discloses a set up the attenuator at the outer circumference of compensator, can reduce the pipeline vibrations to the influence of bellows, reduce the stress concentration of bellows crest or trough department to effectively protect the bellows, prolong the life of compensator. The utility model discloses can improve the fatigue resistance ability of compensator, not only low in manufacturing cost, the installation is convenient with the maintenance, has improved the security and the reliability of compensator moreover.

Description

Pipeline compensator with damper

Technical Field

The utility model belongs to the technical field of the compensator technique and specifically relates to a set up pipeline compensator of attenuator.

Background

The pipeline compensator is generally installed in a heat supply pipeline or a gas transmission pipeline in a segmented mode and used for compensating the telescopic displacement of the pipeline, particularly a long-distance heat supply pipeline for transmitting high-temperature and high-pressure media, the wall thickness of the compensator is large, the strength of the compensator is high, and the axial displacement of the pipeline is absorbed more. Therefore, the reliability requirements for the pipe compensator are high.

At present, most of the common corrugated pipe compensators work in an internal pressure type mode. After the medium is introduced into the pipeline, the medium can enter the inner cavity of the corrugated pipe, namely the inner wall of the corrugated pipe can bear the pressure of the medium. When the pipeline is extended or contracted due to thermal expansion and cold contraction, the corrugated pipe is subjected to the acting force of compression or stretching, and the corrugated pipe is twisted due to uneven stress. Meanwhile, the pipeline can also generate vibration in the operation process, so that stress concentration is formed at the wave crest or the wave trough of the corrugated pipe, the corrugated pipe is easy to leak due to fatigue in the use process, and the whole compensator can fail once the internal pressure type corrugated pipe leaks. Therefore, the pipeline compensator needs to be maintained or replaced regularly, so that the service life of the compensator is short, the workload of maintenance and replacement is large, and the cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a set up pipeline compensator of attenuator can effectively reduce the influence of pipeline vibrations to the bellows through the attenuator, prolongs the life of compensator.

The purpose of the utility model is realized by adopting the following technical scheme:

the utility model provides a set up pipeline compensator of attenuator, includes bellows and honeycomb duct, and the honeycomb duct is established in the bellows, and the both ends of bellows are taken over respectively with a left side and are connected with the right side, and the outer end that takes over respectively with the right side is equipped with left flange and right flange, the one end of honeycomb duct and the interior wall connection who takes over in a left side are with fixed, the outer peripheral surface of left side flange and right flange is equipped with left ear board and right ear board respectively, connects through the attenuator between left ear board and the right ear board.

As the utility model discloses an optimized technical scheme, the both ends of attenuator are equipped with universal joint respectively, and the attenuator passes through universal joint and is connected with left otic placode and auris dextra board for the attenuator can rotate for the axis of compensator.

As the preferred technical scheme of the utility model, the attenuator includes hydraulic damper, rotary damper and spring sleeve pipe attenuator.

As the preferred technical scheme of the utility model, the spring sleeve damper comprises a spring and a sleeve, the spring is sleeved outside the sleeve, and two ends of the spring are provided with limiting plates; the sleeve includes an inner tube inserted inside the outer tube and slidable with respect to the outer tube.

As the utility model discloses a preferred technical scheme, be equipped with damping spring between sheathed tube inner tube and the outer tube, damping spring establishes at the cover intraductally.

As the preferred technical scheme of the utility model, form airtight sealing sliding connection between sheathed tube inner tube and the outer tube.

The utility model has the advantages that: compared with the prior art, the utility model discloses a set up the attenuator at the outer circumference of compensator, form the auxiliary stay effect to the bellows, can reduce pipeline vibrations and torsional force to the influence of bellows, reduce the stress concentration of bellows crest or trough department to effectively protect the bellows, prolong the life of compensator. The utility model discloses can improve the fatigue resistance ability of compensator, not only low in manufacturing cost, the installation is convenient with the maintenance, has improved the security and the reliability of compensator moreover.

Drawings

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

Fig. 2 is a schematic structural diagram of the damper of the present invention.

In the figure: 1. the device comprises a left flange, 2, a left connecting pipe, 3, a corrugated pipe, 4, a flow guide pipe, 5, a damper, 6, a right flange, 7, a right connecting pipe, 8, a left lug plate, 9, a right lug plate, 10, a universal joint, 51, a spring, 52 and a limiting plate.

Detailed Description

The invention will be further described with reference to the following detailed description of the embodiments with reference to the accompanying drawings:

as shown in fig. 1 and 2, a pipeline compensator provided with a damper comprises a corrugated pipe 3 and a flow guide pipe 4, wherein the flow guide pipe 4 is arranged in the corrugated pipe 3, two ends of the corrugated pipe 3 are respectively connected with a left connecting pipe 2 and a right connecting pipe 7, the outer ends of the left connecting pipe 2 and the right connecting pipe 7 are respectively provided with a left flange 1 and a right flange 6, one end of the flow guide pipe 4 is connected and fixed with the inner wall of the left connecting pipe 2, the outer circumferential surfaces of the left flange 1 and the right flange 6 are respectively provided with a left ear plate 8 and a right ear plate 9, and the left ear plate 8 and the right ear plate 9 are connected through the damper 5. The damper 5 includes a hydraulic damper, a rotary damper, and a spring-sleeve damper.

In this embodiment, the damper 5 is a spring sleeve damper, the two ends of the damper 5 are respectively provided with a universal joint 10, and the damper 5 is connected with the left ear plate 8 and the right ear plate 9 through the universal joints 10, so that the damper 5 can rotate relative to the axis of the compensator.

The spring sleeve damper comprises a spring 51 and a sleeve, the spring 51 is sleeved outside the sleeve, and two ends of the spring 51 are provided with limiting plates 52. The sleeve comprises an inner pipe and an outer pipe, the inner pipe is inserted in the outer pipe, and the inner pipe can slide relative to the outer pipe; a damping spring is arranged between the inner pipe and the outer pipe of the sleeve and is arranged in the sleeve; the inner pipe and the outer pipe of the sleeve form air-tight sliding connection.

The above embodiments are only for illustrating the conception and technical features of the present invention, and the purpose thereof is to make the technical personnel skilled in the art understand the technical solution and implementation mode of the present invention, and thus the protection scope of the present invention can not be limited thereby. All equivalent substitutions or equivalent changes made according to the technical scheme of the invention are intended to be covered by the protection scope of the claims of the invention.

Claims

1. The utility model provides a set up pipeline compensator of attenuator, includes bellows and honeycomb duct, and the honeycomb duct is established in the bellows, and the both ends of bellows are taken over respectively with a left side and are connected with the right side, and the outer end that takes over and the right side is equipped with left flange and right flange respectively for a left side, the one end of honeycomb duct and the inner wall connection of taking over on a left side and fixed characterized by: the outer circumferential surfaces of the left flange and the right flange are respectively provided with a left ear plate and a right ear plate, and the left ear plate and the right ear plate are connected through a damper.

2. The pipe compensator provided with the damper as set forth in claim 1, wherein: the both ends of attenuator are equipped with universal joint respectively, and the attenuator passes through universal joint and is connected with left otic placode and right otic placode for the attenuator can rotate for the axis of compensator.

3. The pipe compensator provided with the damper as set forth in claim 1 or 2, wherein: the dampers include hydraulic dampers, rotary dampers, and spring-in-tube dampers.

4. The pipe compensator provided with a damper as set forth in claim 3, wherein: the spring sleeve damper comprises a spring and a sleeve, the spring is sleeved outside the sleeve, and limiting plates are arranged at two ends of the spring; the sleeve includes an inner tube inserted inside the outer tube and slidable with respect to the outer tube.

5. The pipe compensator provided with the damper as set forth in claim 4, wherein: and a damping spring is arranged between the inner pipe and the outer pipe of the sleeve and is arranged in the sleeve.

6. The pipe compensator provided with the damper as set forth in claim 4, wherein: and an air-tight sealing sliding connection is formed between the inner pipe and the outer pipe of the sleeve.