CN212178220U - Omnibearing flexible corrugated compensator for gas pipeline - Google Patents
Omnibearing flexible corrugated compensator for gas pipeline Download PDFInfo
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- CN212178220U CN212178220U CN202020273239.7U CN202020273239U CN212178220U CN 212178220 U CN212178220 U CN 212178220U CN 202020273239 U CN202020273239 U CN 202020273239U CN 212178220 U CN212178220 U CN 212178220U
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- bellows
- compensator
- gas pipeline
- corrugated pipe
- wrist band
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Abstract
The utility model relates to an all-round flexible compensator especially relates to a gas is all-round flexible compensator for service pipe. The utility model provides a gas pipeline is with all-round flexible ripple compensator, including inlayer bellows and outer bellows, including the fixed attach fitting that is equipped with in the both ends of inside and outside bellows, be equipped with wrist band and pressure-bearing ring plate between inside and outside bellows and the attach fitting, the wrist band overlaps respectively and establishes on the surface at the both ends of outer bellows, and with outer bellows welded fastening, the one end and the wrist band welded fastening of pressure-bearing ring plate, the other end and attach fitting welded fastening, inlayer bellows and outer bellows are in the cold state of tightening through the pre-compaction. The utility model has the advantages that: the utility model discloses an all-round flexible compensator has stretch-proofing, tensile and takes off, resistant vibration, resistant environmental corrosion, and bellows can not be drawn and take off and the dead advantage of card in the installation borrow and the settlement of compensation ground.
Description
Technical Field
The utility model relates to an all-round flexible compensator especially relates to a gas pipeline is with all-round flexible corrugated compensator.
Background
The omnibearing flexible compensator is an important pipeline compensating connector in the gas engineering technology. The omnibearing flexible compensator can compensate the cold and heat deformation, installation deviation and mechanical deformation of the pipeline and absorb the vibration caused by various air flows, and plays a role in reducing the deformation of the pipeline and prolonging the service life of various valves, instruments, meters and facilities on the pipeline and the pipeline. The existing common compensator is under the environment that the installation space of a floor service pipe is small and the foundation subsides complicatedly, and the corrugated pipe is easy to be blocked by a quilt or straightened due to the influence of space positions and foundation environmental factors, and the welding line of a product is easy to be pulled apart or pulled off in the installation and use states. Particularly, under the environments of poor construction conditions, serious foundation settlement, severe use environment and serious installation borrowing, the omnibearing flexible compensator with a special structure is required to be designed in order to make up the performance and structural defects of various conventional compensators. Therefore, a new technical solution should be provided to solve the above problems.
Disclosure of Invention
The utility model aims at: aiming at the defects, the omnibearing flexible corrugated compensator for the gas pipeline is provided with the advantages of tensile resistance, pull-off resistance, vibration resistance, environmental corrosion resistance, and no pull-off and blocking of the corrugated pipe in installation borrowing and foundation settlement compensation.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a gas pipeline is with all-round flexible ripple compensator, includes inlayer bellows and outer bellows, at the fixed attach fitting that is equipped with in both ends of inside and outside bellows, be equipped with wrist band and pressure-bearing ring plate between inside and outside bellows and the attach fitting, wrist band cover is established respectively on the surface at the both ends of outer bellows, and with outer bellows welded fastening, the one end and the wrist band welded fastening of pressure-bearing ring plate, the other end and attach fitting welded fastening, inlayer bellows and outer bellows are in the cold tight state through the pre-compaction.
The further technical scheme is as follows:
the prepressing amount of the inner-layer corrugated pipe and the outer-layer corrugated pipe is half of the designed axial displacement of the corrugated pipes.
The wrist band is coated on the outer surface of the outer-layer corrugated pipe.
And the two ends of the inner-layer corrugated pipe and the outer-layer corrugated pipe are welded and fixed with the connecting joint.
The joints connected with the inner and outer layers of corrugated pipes are provided with stress relieving grooves in the welding seam area.
The connecting joint is a threaded joint or a connecting flange.
Due to the adoption of the technical scheme, compared with the prior art, the utility model have the following advantage:
1. the utility model discloses an all-round flexible corrugated compensator is used to gas pipeline, interior, the volume of outer bellows pre-compaction is bellows design axial displacement's half, utilize the precompression of bellows to warp, fall the minimum with the rigidity of bellows, make the joint of compensator and bellows bear certain compressive stress in advance in the manufacturing process, improve compensator and gas service entrance pipeline bear the ability of axial tensile stress and ground differential settlement at the operation in-process, thereby improve the stretch-proofing performance of all-round flexible compensator installation borrow.
2. The utility model discloses an all-round flexible corrugated compensator is used to gas pipeline, in, be equipped with wrist band and pressure-bearing crown plate between outer bellows and the attach fitting, the wrist band is established respectively on the surface at the both ends of outer bellows, and with outer bellows welded fastening, the one end and the wrist band welded fastening of pressure-bearing crown plate, the other end and attach fitting welded fastening, such structural design, the effect of outer bellows has been promoted the guard action of existing protection inlayer bellows and has possessed the bearing capacity who bears the inlayer bellows after becoming invalid, thereby improve the sealed bearing capacity of the double-deck pressure-bearing of all-round flexible compensator and the ability of double-deck protection, promote the bearing capacity of compensator.
3. The utility model discloses a gas pipeline is with all-round flexible ripple compensator utilizes outer bellows guard action to keep interior bellows surface and outer bellows internal surface and the space between the pressure-bearing ring plate inboard, changes the vibration frequency suppression vibration and the noise of compensator, plays spacing, anticorrosive and improvement fatigue cycle life's effect to further guarantee the installation borrow of bellows and the comprehensive compensation performance of ground differential settlement.
4. The omnibearing flexible corrugated compensator for the gas pipeline of the utility model utilizes the characteristic of small annular gap between the outer layer corrugated pipe and the inner layer corrugated pipe to resist the phenomenon that the corrugated pipe is excessively borrowed or compressed, and simultaneously inhibits the vibration, thereby playing the roles of limiting and improving the fatigue cycle life; on the other hand, the radial bending of the corrugated pipe is limited, so that the radial and axial stability of the compensator is improved.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an embodiment of the present invention.
In the above drawings: 1. the corrugated pipe comprises an inner-layer corrugated pipe body, an outer-layer corrugated pipe body, a wrist guard, a threaded joint, a connecting flange, a connecting pipe 6, a connecting pipe 7, a plain end joint 8, an outer-layer joint 9, a loop nut 10, a sealing ring 11 and a pressure-bearing ring plate.
Detailed Description
The invention will be further described with reference to the following drawings and examples:
the first embodiment is as follows:
as shown in figure 1, the omnibearing flexible corrugated compensator for the gas pipeline comprises an inner layer corrugated pipe 1 and an outer layer corrugated pipe 2, wherein connecting joints are fixedly arranged at two ends of the inner layer corrugated pipe and the outer layer corrugated pipe, a wrist guard 3 and a pressure-bearing ring plate 11 are arranged between the inner layer corrugated pipe and the outer layer corrugated pipe and the connecting joints, the wrist guard 3 is respectively sleeved on the outer surfaces of two ends of the outer layer corrugated pipe 2 and is welded and fixed with the outer layer corrugated pipe, one end of the pressure-bearing ring plate 11 is welded and fixed with the wrist guard 3, the other end of the pressure-bearing ring plate is welded and fixed with the connecting joints, the inner layer corrugated pipe 1 and the outer layer corrugated pipe 2 are in a cold-tight state through prepressing, the prepressing amount is half of the designed axial displacement of the corrugated pipe, the pre-compressing deformation of the corrugated pipe is utilized to reduce the rigidity of the corrugated pipe to the minimum value, so that the joint of the compensator and the corrugated pipe bear And the capacity is improved, so that the tensile resistance of the mounting borrowing of the omnibearing flexible compensator is improved.
The utility model discloses an all-round flexible compensator for gas service pipe utilizes outer bellows 2 and both ends pressure-bearing ring plate 11 and the wrist band 3 at both ends, has not only improved the compressive property of inlayer bellows 1, has guaranteed the compressive property and the effect of environmental protection corruption of outer bellows 2 simultaneously, more importantly can improve compensator installation borrow ability and the erosion of protection installation environmental corrosion medium to inlayer bellows 1 to improve comprehensive properties and the accumulation fatigue life of compensator compensation ground differential settlement and compensation pipeline expend with heat and contract with cold performance and installation borrow etc.; on the other hand, the axial compensation performance of the corrugated pipe is further ensured by utilizing the effective space isolation between the outer-layer corrugated pipe 2 and the inner-layer corrugated pipe 1. By utilizing effective space isolation between the outer-layer corrugated pipe 2 and the inner-layer corrugated pipe 1 and organic connection of the wrist guard 3, on one hand, the influence of the transitional stretching of the corrugated pipe on the environment is resisted, and simultaneously the influence of vibration and noise on the environment is inhibited, so that the effects of limiting and protecting the corrosion of the surrounding environment on the working corrugated pipe of the compensator and prolonging the fatigue cycle life of the product are achieved; on the other hand, the radial bending of the corrugated pipe is limited, so that the radial and axial stability of the compensator is improved.
The utility model discloses an all-round flexible compensator is used in gas service pipe is equipped with stress reduction groove at the welding seam region at the joint of inside and outside bellows connection, and it can share the stress of concentrating and come, can reduce and avoid the destruction and the deformation that original too concentrated stress brought.
Example two
As shown in fig. 2, as a second embodiment of the present invention, the joint is a threaded joint 4 in this embodiment, the threaded joint 4 is welded and fixed to one end of the inner and outer bellows, the other end of the inner and outer bellows is welded and fixed to a plain end joint 7, the plain end joint 7 and an outer joint 8 are connected and fixed by a loop nut 9, and a sealing ring 10 is arranged between the loop nut 9 and the plain end joint 7, and the rest of the structure is the same as the first embodiment.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications or replacements can be made without departing from the principle of the present invention, and these modifications or replacements should also be considered as the protection scope of the present invention.
Claims (6)
1. The utility model provides a gas is all-round flexible corrugated compensator for pipeline which characterized in that: including inlayer bellows (1) and outer bellows (2), including, the fixed attach fitting that is equipped with in both ends of outer bellows, be equipped with wrist band (3) and pressure-bearing crown plate (11) between inside and outside bellows and the attach fitting, wrist band (3) cover is established respectively on the surface at the both ends of outer bellows (2), and with outer bellows welded fastening, the one end and wrist band (3) welded fastening of pressure-bearing crown plate (11), the other end and attach fitting welded fastening, inlayer bellows (1) and outer bellows (2) are located cold compact state through the pre-compaction.
2. The omni-directional flexible bellow compensator for gas pipeline according to claim 1, wherein: the prepressing amount of the inner-layer corrugated pipe (1) and the outer-layer corrugated pipe (2) is half of the designed axial displacement of the corrugated pipes.
3. The omni-directional flexible bellow compensator for gas pipeline according to claim 1, wherein: the wrist guard (3) is coated on the outer surface of the outer-layer corrugated pipe (2).
4. The omni-directional flexible bellow compensator for gas pipeline according to claim 1, wherein: the two ends of the inner and outer layers of corrugated pipes are welded and fixed with the connecting joint.
5. The omni-directional flexible bellow compensator for gas pipeline according to claim 3, wherein: the joints connected with the inner and outer layers of corrugated pipes are provided with stress relieving grooves in the welding seam area.
6. The omni-directional flexible bellow compensator for gas pipeline according to claim 3 or 4, wherein: the connecting joint is a threaded joint (4) or a connecting flange (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020273239.7U CN212178220U (en) | 2020-03-06 | 2020-03-06 | Omnibearing flexible corrugated compensator for gas pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020273239.7U CN212178220U (en) | 2020-03-06 | 2020-03-06 | Omnibearing flexible corrugated compensator for gas pipeline |
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| Publication Number | Publication Date |
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| CN212178220U true CN212178220U (en) | 2020-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020273239.7U Active CN212178220U (en) | 2020-03-06 | 2020-03-06 | Omnibearing flexible corrugated compensator for gas pipeline |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114110289A (en) * | 2022-01-26 | 2022-03-01 | 中国空气动力研究与发展中心设备设计与测试技术研究所 | Large-compensation compact compensator |
| CN114857376A (en) * | 2022-05-10 | 2022-08-05 | 上海凌瀚船舶科技有限公司 | Expansion joint for liquefied natural gas ship |
-
2020
- 2020-03-06 CN CN202020273239.7U patent/CN212178220U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114110289A (en) * | 2022-01-26 | 2022-03-01 | 中国空气动力研究与发展中心设备设计与测试技术研究所 | Large-compensation compact compensator |
| CN114857376A (en) * | 2022-05-10 | 2022-08-05 | 上海凌瀚船舶科技有限公司 | Expansion joint for liquefied natural gas ship |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20210507 Address after: No.117 Hangzhou Road, Jiangyan Economic Development Zone, Taizhou City, Jiangsu Province 225500 Patentee after: JIANGSU XINGAO BELLOWS Co.,Ltd. Address before: 225500 No.52, group 1, shuangshou village, Jiangyan Town, Jiangyan District, Taizhou City, Jiangsu Province Patentee before: Wang Yaping |