CN211901976U - High-pressure expansion joint - Google Patents
High-pressure expansion joint Download PDFInfo
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- CN211901976U CN211901976U CN202020410544.6U CN202020410544U CN211901976U CN 211901976 U CN211901976 U CN 211901976U CN 202020410544 U CN202020410544 U CN 202020410544U CN 211901976 U CN211901976 U CN 211901976U
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- thick bamboo
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Abstract
The utility model discloses a high-pressure telescopic joint, including the flexible section of thick bamboo of first flexible section of thick bamboo and second, flexible chamber has been seted up to the one end of the flexible section of thick bamboo of first flexible section of thick bamboo, and the one end of the flexible section of thick bamboo of second stretches into in flexible chamber and can make concertina movement in flexible chamber, and the outer wall of the flexible section of thick bamboo of second contacts with the inner wall in flexible chamber, and by the flexible length of the axial length decision high-pressure telescopic joint in flexible chamber, the flexible section of thick bamboo inner wall of second is serving and has been seted up the second chamfer in stretching into one of flexible chamber. Has the advantages that: the axial length adjustment can be realized, only one degree of freedom is provided, locking and looseness prevention are configured, new rigid connection can be realized after connection is completed, and the high-pressure pipelines are more flexibly and quickly installed. The problems of installation stress and fluid steering in conventional connection are solved, energy loss in the fluid conveying process is reduced, and the service life of the pipeline is prolonged.
Description
Technical Field
The utility model relates to a technique high-pressure line connects technical field, concretely relates to high-pressure telescopic joint.
Background
When in well cementation and fracturing operation, high-pressure fluid enters the drilling equipment from a mud pump or a high-pressure plunger pump through a pipeline, the relative position of an interface between the mud pump and the high-pressure plunger pump is uncertain in advance, and the connecting pipeline is required to have certain adjustability. In the traditional oilfield well cementation and fracturing field manifold connection, rigid connection or movable elbows are mostly adopted to adjust the interface gap; the rigid connection in the prior art has installation stress after installation, so that the service life of a high-pressure pipeline is reduced to a certain extent; the movable elbow can realize the axial length adjustment only by at least 3 rotational degrees of freedom, and the fluid changes the flow direction for many times in the movable elbow, thereby causing energy loss and pipeline vibration.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a not enough of prior art is overcome to the purpose, provides a high-pressure telescopic joint, can realize axial length control, only has a degree of freedom to dispose locking and locking, can realize new rigid connection after the connection is accomplished, installation between the high-pressure line is more nimble, more swift. The problems of installation stress and fluid steering in conventional connection are solved, energy loss in the fluid conveying process is reduced, and the service life of the pipeline is prolonged.
The purpose of the utility model is achieved through the following technical measures: the utility model provides a high-pressure telescopic joint, includes the flexible section of thick bamboo of first flexible section of thick bamboo and second, flexible chamber has been seted up to the one end of the flexible section of thick bamboo of first, and the one end of the flexible section of thick bamboo of second stretches into in flexible chamber and can be in flexible chamber and make concertina movement, and the outer wall of the flexible section of thick bamboo of second contacts with the inner wall in flexible chamber, by the flexible length of the axial length decision high-pressure telescopic joint in flexible chamber, and the second chamfer has been seted up to the flexible section of thick bamboo inner wall of second serving in stretching into flexible chamber.
Further, the high-pressure telescopic joint comprises an adjusting nut and a locking nut, the adjusting nut is sleeved on the outer wall of the second telescopic cylinder and is in threaded connection, one end of the adjusting nut is in contact with one end of the first telescopic cylinder, the locking nut is sleeved on the outer wall of the first telescopic cylinder and is in threaded connection, an inner shoulder is arranged on the inner wall of one end of the locking nut, an outer shoulder is arranged on the outer wall of one end of the adjusting nut, and the inner shoulder and the outer shoulder are buckled with each other.
Furthermore, the locking nut is fixed with the first telescopic cylinder through a locking screw.
Furthermore, a first chamfer angle is formed at one end, far away from the second telescopic cylinder, of the telescopic cavity.
Furthermore, the outer wall of the second telescopic cylinder is connected with the inner wall of the telescopic cavity in a sealing mode.
Furthermore, a groove for sealing is formed in the second telescopic cylinder, and a sealing element is filled in the groove.
Furthermore, a plurality of grooves are formed in the second telescopic cylinder.
Furthermore, two ends of the high-pressure expansion joint are connected with a high-pressure fluid pipeline through a FIG union or a clamp or an API flange.
Compared with the prior art, the beneficial effects of the utility model are that: the adjustment of the length of the high-pressure telescopic joint is realized through the expansion and contraction of the second telescopic cylinder in the telescopic cavity of the first telescopic cylinder, when the high-pressure telescopic joint is connected with a high-pressure pipeline through a FIG union or a clamp or an API flange and the like, the length of the high-pressure pipeline can be adjusted, and therefore the rigid connection between the high-pressure pipelines can be quickly completed by flexibly adjusting the length of the high-pressure pipeline when the high-pressure pipeline is in rigid connection. The arrangement of the first chamfer and the second chamfer effectively reduces turbulence and scouring caused by sudden change of the cross section of fluid at the joint, and the internal cross section is excessively smooth. The high-pressure expansion joint adopts a multi-sealing technology, so that the safety and reliability of operation are improved; the internal stress during the connection of the high-pressure pipeline can be remarkably reduced. The high-pressure expansion joint adopts multilayer nesting and locking, is firmly connected and is insensitive to vibration generated when internal fluid flows.
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is a schematic structural view of the high-pressure expansion joint.
The telescopic structure comprises a first telescopic cylinder 1, a second telescopic cylinder 2, an adjusting nut 3, a locking nut 4, a locking screw 5, a sealing element 6, a second chamfer angle 7, a first chamfer angle 8, an outer shoulder 9 and an inner shoulder 10.
Detailed Description
As shown in fig. 1, a high-pressure telescopic joint comprises a first telescopic cylinder 1 and a second telescopic cylinder 2, wherein a telescopic cavity is formed in one end of the first telescopic cylinder 1, one end of the second telescopic cylinder 2 extends into the telescopic cavity and can perform telescopic motion in the telescopic cavity, the outer wall of the second telescopic cylinder 2 is in contact with the inner wall of the telescopic cavity, the telescopic length of the high-pressure telescopic joint is determined by the axial length of the telescopic cavity, and one end of the inner wall of the second telescopic cylinder 2 extending into the telescopic cavity is provided with a second chamfer 7. And two ends of the high-pressure expansion joint are connected with a high-pressure fluid pipeline through a FIG union or a hoop or an API flange. The adjustment of the length of the high-pressure telescopic joint is realized through the expansion of the second telescopic cylinder 2 in the telescopic cavity of the first telescopic cylinder 1, when the high-pressure telescopic joint is connected with a high-pressure pipeline through a FIG union or a clamp or an API flange and the like, the length of the high-pressure pipeline can be adjusted, and therefore the rigid connection between the high-pressure pipelines can be quickly completed by flexibly adjusting the length of the high-pressure pipeline when the high-pressure pipeline is in rigid connection.
The high-pressure telescopic joint comprises an adjusting nut 3 and a locking nut 4, wherein an inner thread is arranged on the inner wall of the adjusting nut 3 on the outer wall of the second telescopic cylinder 2 in a sleeved mode through the adjusting nut 3, an outer thread is arranged on the outer wall of the second telescopic cylinder 2, the adjusting nut 3 is in threaded connection with the second telescopic cylinder 2, one end of the adjusting nut 3 is in contact with one end of the first telescopic cylinder 1, the locking nut 4 is arranged on the outer wall of the first telescopic cylinder 1 in a sleeved mode through the locking nut 4, an inner thread is arranged on the inner wall of the locking nut 4, an outer shoulder 9 is arranged on the outer wall of one end of the adjusting nut 3, and the inner shoulder 10 and the outer shoulder 9 are buckled mutually. The locking nut 4 is fixed with the first telescopic cylinder 1 through a locking screw 5. Structurally, 1 set second telescopic tube 2 of first telescopic tube, adjusting nut 3 cup joints fixed second telescopic tube 2 and gives first telescopic tube 1 with the power of axial conflict, locking nut 4 cup joints fixed first telescopic tube 1 and is fixed with the mutual lock of adjusting nut 3, at last rethread locking screw 5 consolidate locking nut 4 and first telescopic tube 1, thereby realized that high-pressure telescopic joint multilayer is nested and locked, firm in connection, be applicable to high-pressure pipeline's fluid requirement completely. The reinforcement and the locking of the locking screw 5 can also be dispensed with if the axial length of the locking nut 4 is sufficiently long.
The first chamfer angle 8 is seted up in the one end of flexible chamber keeping away from second telescopic 2. The arrangement of the first chamfer 8 and the second chamfer 7 effectively reduces turbulence and scouring caused by abrupt change of the cross section of the fluid at the joint, and the internal cross section is excessively smooth.
The outer wall of the second telescopic cylinder 2 is connected with the inner wall of the telescopic cavity in a sealing mode. And a groove for sealing is formed in the second telescopic cylinder 2, and a sealing element 6 is filled in the groove. And a plurality of grooves are formed in the second telescopic cylinder 2. The high-pressure expansion joint adopts a multi-sealing technology, so that the safety and reliability of operation are improved; the internal stress during the connection of the high-pressure pipeline can be remarkably reduced.
The working principle is as follows: when the length of the high-pressure expansion joint needs to be adjusted, the locking screw 5 is unscrewed, the locking nut 4 is unscrewed, and the connecting position between the second expansion cylinder 2 is adjusted by rotating the adjusting nut 3, so that the expansion of the second expansion cylinder 2 in the first expansion cylinder 1 is realized.
It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides a high pressure telescopic joint, its characterized in that, includes the flexible section of thick bamboo of first flexible section of thick bamboo and second, flexible chamber has been seted up to the one end of the flexible section of thick bamboo of first flexible, and the one end of the flexible section of thick bamboo of second stretches into in flexible chamber and can make concertina movement in flexible chamber, and the outer wall of the flexible section of thick bamboo of second contacts with the inner wall in flexible chamber, and the flexible length of high pressure telescopic joint is decided by the axial length in flexible chamber, and the second chamfer has been seted up to the flexible section of thick bamboo inner wall of second serving in stretching into flexible chamber.
2. The high pressure telescopic joint according to claim 1, wherein: the high-pressure telescopic joint comprises an adjusting nut and a locking nut, the adjusting nut is sleeved on the outer wall of the second telescopic cylinder and is in threaded connection, one end of the adjusting nut is in contact with one end of the first telescopic cylinder, the locking nut is sleeved on the outer wall of the first telescopic cylinder and is in threaded connection, an inner shoulder is arranged on the inner wall of one end of the locking nut, an outer shoulder is arranged on the outer wall of one end of the adjusting nut, and the inner shoulder and the outer shoulder are buckled with each other.
3. The high pressure telescopic joint according to claim 2, wherein: the locking nut is fixed with the first telescopic cylinder through a locking screw.
4. The high pressure telescopic joint according to claim 1, wherein: the first chamfer angle is arranged at one end of the telescopic cavity far away from the second telescopic cylinder.
5. The high pressure telescopic joint according to claim 1, wherein: the outer wall of the second telescopic cylinder is connected with the inner wall of the telescopic cavity in a sealing mode.
6. The high pressure telescopic joint according to claim 5, wherein: and a groove for sealing is formed in the second telescopic cylinder, and a sealing element is filled in the groove.
7. The high pressure telescopic joint according to claim 6, wherein: and a plurality of grooves are formed in the second telescopic cylinder.
8. The high pressure telescopic joint according to claim 1, wherein: and two ends of the high-pressure expansion joint are connected with a high-pressure fluid pipeline through a FIG union or a hoop or an API flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020410544.6U CN211901976U (en) | 2020-03-26 | 2020-03-26 | High-pressure expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020410544.6U CN211901976U (en) | 2020-03-26 | 2020-03-26 | High-pressure expansion joint |
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| Publication Number | Publication Date |
|---|---|
| CN211901976U true CN211901976U (en) | 2020-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020410544.6U Active CN211901976U (en) | 2020-03-26 | 2020-03-26 | High-pressure expansion joint |
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| CN (1) | CN211901976U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112323373A (en) * | 2020-11-28 | 2021-02-05 | 珠海格力电器股份有限公司 | Pipeline supporting structure and clothes treatment equipment comprising same |
| CN113417580A (en) * | 2021-06-23 | 2021-09-21 | 四川宏华石油设备有限公司 | Manifold device and manifold system adopting same |
| CN113756726A (en) * | 2021-09-10 | 2021-12-07 | 四川宏华石油设备有限公司 | Adjustable high-pressure manifold and system |
| CN113818855A (en) * | 2021-10-15 | 2021-12-21 | 烟台杰瑞石油装备技术有限公司 | Fracturing conveying system and switching structure |
| CN115507235A (en) * | 2022-09-28 | 2022-12-23 | 四川宏华石油设备有限公司 | Telescopic short section and manifold system |
-
2020
- 2020-03-26 CN CN202020410544.6U patent/CN211901976U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112323373A (en) * | 2020-11-28 | 2021-02-05 | 珠海格力电器股份有限公司 | Pipeline supporting structure and clothes treatment equipment comprising same |
| CN112323373B (en) * | 2020-11-28 | 2023-09-22 | 珠海格力电器股份有限公司 | Clothes treatment equipment |
| CN113417580A (en) * | 2021-06-23 | 2021-09-21 | 四川宏华石油设备有限公司 | Manifold device and manifold system adopting same |
| CN113417580B (en) * | 2021-06-23 | 2024-04-09 | 四川宏华石油设备有限公司 | Manifold device and manifold system adopting same |
| CN113756726A (en) * | 2021-09-10 | 2021-12-07 | 四川宏华石油设备有限公司 | Adjustable high-pressure manifold and system |
| CN113756726B (en) * | 2021-09-10 | 2023-12-05 | 四川宏华石油设备有限公司 | Adjustable high-pressure manifold and system |
| CN113818855A (en) * | 2021-10-15 | 2021-12-21 | 烟台杰瑞石油装备技术有限公司 | Fracturing conveying system and switching structure |
| CN115507235A (en) * | 2022-09-28 | 2022-12-23 | 四川宏华石油设备有限公司 | Telescopic short section and manifold system |
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