CN217208331U - Damping expansion joint for high-pressure pipeline - Google Patents
Damping expansion joint for high-pressure pipeline Download PDFInfo
- Publication number
- CN217208331U CN217208331U CN202123299857.2U CN202123299857U CN217208331U CN 217208331 U CN217208331 U CN 217208331U CN 202123299857 U CN202123299857 U CN 202123299857U CN 217208331 U CN217208331 U CN 217208331U
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- CN
- China
- Prior art keywords
- spring
- ring
- corrugated pipe
- expansion joint
- rod body
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- Expired - Fee Related
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- 238000013016 damping Methods 0.000 title abstract description 11
- 230000035939 shock Effects 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
A damping expansion joint for a high-pressure pipeline is used for a warship high-pressure pipeline system. The corrugated pipe comprises a corrugated pipe (3) and is characterized in that a ring body (4) is embedded in a groove on the surface of the corrugated pipe, and ring plates (2) are welded at two ends of the corrugated pipe. The damping device comprises a rod body (5), a spring (6) and a disc spring (7), wherein the rod body symmetrically penetrates through the edge parts of the two annular plates, the spring (6) and the disc spring (7) are sleeved on the rod body, the spring is located on the inner side of the annular plates and is compressed by a nut (8), the disc spring is located on the outer side of the annular plates and is compressed by the nut. The universal hinge compensator has the beneficial effects that the universal hinge compensator can effectively compensate displacement in three directions, has stable performance, overcomes the defect that the common universal hinge compensator only has transverse and angular displacement, and can greatly prolong the service life of the expansion joint under high-pressure and impact working conditions due to the damping device consisting of the rod body, the annular plate, the spring and the disk spring.
Description
Technical Field
The utility model relates to an expansion joint for high pressure pipeline's displacement compensation.
Background
In the inlet and outlet pipelines of the high-pressure pump, when the temperature and the pressure change, axial displacement, transverse displacement and angular displacement can occur, and although the common expansion joint can compensate the displacement in three directions, the deformation of the corrugated pipe and the vibration of the high-pressure pump can affect the service life of the expansion joint under high pressure.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a shock attenuation expansion joint that high-pressure line used, its life that can effectual improvement expansion joint.
The technical scheme of the utility model, a shock attenuation expansion joint that high-pressure line used, it includes bellows 3, characterized by has inlayed ring body 4 in the slot on bellows surface, and the internal diameter of ring body slightly is greater than the external diameter of the tank bottom of slot, and the slot is exposed to the excircle of ring body, and the thickness of ring body slightly is less than the width of slot, has annular plate 2 in the both ends welding of bellows.
The two sides of the excircle of the ring body 4 extend along the wave crest cambered surface of the corrugated pipe.
The ring plate 2, be connected with damping device between it, damping device includes the body of rod 5, spring 6, belleville spring 7, the body of rod runs through in the edge part of two ring plates symmetrically, spring 6 and belleville spring 7 cover are on the body of rod, wherein, the spring is located the inboard of ring plate, and the spring is compressed tightly by nut 8, and belleville spring is located the outside of ring plate, and belleville spring is compressed tightly by the nut.
The utility model has the advantages that the ring body is embedded in the groove on the surface of the corrugated pipe, which can improve the bearing performance of the corrugated pipe and prevent the corrugated pipe from deforming; the damping device can absorb the vibration of the high-pressure pump and the pipeline; therefore, the service life of the expansion joint can be effectively prolonged.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The figures are numbered: 1-connecting pipe, 2-annular plate, 3-corrugated pipe, 4-annular body, 5-rod body, 6-spring, 7-butterfly spring and 8-nut.
Detailed Description
A shock absorption expansion joint for a high-pressure pipeline comprises a corrugated pipe 3 and is characterized in that a ring body 4 is embedded in a groove on the surface of the corrugated pipe, the inner diameter of the ring body is slightly larger than the outer diameter of the bottom of the groove, the outer circle of the ring body is exposed out of the groove, the thickness of the ring body is smaller than the width of the groove, and ring plates 2 are welded at two ends of the corrugated pipe; the connecting pipes 1 are respectively connected with the ring plates.
The ring body has the function of enabling the internal force born among all the wave nodes of the corrugated pipe to be uniform and avoiding the bending deformation of the corrugated pipe. The ring plate can enhance the bearing capacity of the surfaces of the two ends of the corrugated pipe.
The two sides of the excircle of the ring body 4 extend along the wave crest cambered surface of the corrugated pipe, but the adjacent ring bodies are not contacted, so that the internal force of the wave crest of the corrugated pipe can be absorbed, and the pressure-bearing capacity of the corrugated pipe is further improved.
The ring plate 2, be connected with damping device between it, damping device includes the body of rod 5, spring 6, belleville spring 7, the body of rod runs through in the edge part of two ring plates symmetrically, spring 6 and belleville spring 7 cover are on the body of rod, wherein, the spring is located the inboard of ring plate, and the spring is compressed tightly by nut 8, and belleville spring is located the outside of ring plate, and belleville spring is compressed tightly by the nut.
When the temperature of the pipeline changes, the expansion of the pipeline is compensated by the corrugated pipe; when the pressure changes, the ring plate and the rod body absorb the axial thrust of the corrugated pipe to protect external equipment, and the ring body enables all the wave nodes to be stressed uniformly and absorb the transverse thrust to protect the corrugated pipe. The disc spring and the spring can play a role in shock absorption. The force bearing parts effectively absorb the displacement and bear the inner pressure thrust to enable the whole expansion joint to be in a balanced motion state.
The utility model has the advantages that the ring body is embedded in the groove on the surface of the corrugated pipe, which can improve the bearing performance of the corrugated pipe and prevent the corrugated pipe from deforming; the damping device can absorb the vibration of the high-pressure pump and the pipeline; therefore, the service life of the expansion joint can be effectively prolonged.
Claims (3)
1. The utility model provides a shock attenuation expansion joint that high pressure pipeline used, its includes bellows (3), characterized by, inlays ring body (4) in the slot on bellows surface, and the internal diameter of ring body slightly is greater than the external diameter of the tank bottom of slot, and the slot is exposed to the excircle of ring body, and the thickness of ring body slightly is less than the width of slot, has welded ring board (2) at the both ends of bellows.
2. A shock-absorbing expansion joint for high-pressure pipes according to claim 1, wherein the ring body (4) extends along the crest of the bellows on both sides of its outer circumference.
3. A shock-absorbing expansion joint for high-pressure pipes according to claim 1 or 2, characterized in that the ring plates (2) are connected with a shock-absorbing device, the shock-absorbing device comprises a rod body (5), a spring (6) and a disk spring (7), the rod body symmetrically penetrates through the edge parts of the two ring plates, the spring (6) and the disk spring (7) are sleeved on the rod body, wherein the spring is positioned at the inner side of the ring plates and is pressed by a nut (8), the disk spring is positioned at the outer side of the ring plates and is pressed by the nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123299857.2U CN217208331U (en) | 2021-12-27 | 2021-12-27 | Damping expansion joint for high-pressure pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123299857.2U CN217208331U (en) | 2021-12-27 | 2021-12-27 | Damping expansion joint for high-pressure pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217208331U true CN217208331U (en) | 2022-08-16 |
Family
ID=82784167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123299857.2U Expired - Fee Related CN217208331U (en) | 2021-12-27 | 2021-12-27 | Damping expansion joint for high-pressure pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217208331U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115654254A (en) * | 2022-11-10 | 2023-01-31 | 哈尔滨工程大学 | Disc spring type metamaterial low-frequency vibration isolation pipeline and connecting system based on pipeline |
-
2021
- 2021-12-27 CN CN202123299857.2U patent/CN217208331U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115654254A (en) * | 2022-11-10 | 2023-01-31 | 哈尔滨工程大学 | Disc spring type metamaterial low-frequency vibration isolation pipeline and connecting system based on pipeline |
| CN115654254B (en) * | 2022-11-10 | 2023-08-18 | 哈尔滨工程大学 | Belleville spring type metamaterial low-frequency vibration isolation pipeline and pipeline-based connecting system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220816 |