Self-adaptive pipeline universal adjusting device

Abstract

The utility model relates to the technical field of pipeline structures, in particular to a self-adaptive pipeline universal adjusting device which comprises a first outer pipe, a first corrugated pipe is arranged in the first outer pipe, one end of the first corrugated pipe is connected with a first inner pipe, the other end of the first corrugated pipe is connected with a first spherical channel, and the first spherical channel is connected with an external pipe. The first spherical channel is sleeved with a first spherical shell, the first spherical shell is connected to one end of the first outer pipe, and sealing assemblies are arranged between the first inner pipe and the first outer pipe and between the first spherical channel and the first spherical shell. The device is applied to a pipeline system, axial adjustment and multi-direction adjustment can be carried out in a self-adaptive mode according to the ground surface settlement amplitude, multiple sealing protection structures are arranged, and safety and stability of the well site process are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline structure technical field, concretely is a kind of self-adapting pipeline universal adjusting device. BACKGROUND

[0002] Part of oilfield's oil production plant oil well is located in beach area, and the surrounding salt field is developed on a large scale for a long time, and the underground brine needs to be continuously extracted to maintain production. With the continuous increase of brine exploitation, the stress balance of underground stratum is broken, which causes obvious uneven subsidence on the ground.

[0003] This subsidence directly acts on the wellhead and the ground oil pipeline, causing it to bear continuous and uneven tension. Under long-term stress, the ground oil flow process facilities gradually deform and shift, and some pipelines loosen and crack, and even break completely in severe cases.

[0004] After the pipeline is damaged, a large amount of oil and gas resources are leaked, not only causing serious environmental pollution in the beach area, but also damaging the surrounding marine ecological balance, and also leading to forced interruption of oilfield production. This problem not only brings huge loss of oil and gas resources, but also generates high environmental treatment costs, facility maintenance costs and production stagnation losses, causing serious economic losses to oilfield enterprises, and also having a long-term potential impact on the regional ecological environment, so targeted prevention and control and management measures are urgently needed. UTILITY MODEL CONTENT

[0005] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a self-adapting pipeline universal adjusting device.

[0006] To solve the above technical problems, the utility model provides the following technical scheme:

[0007] A self-adapting pipeline universal adjusting device, comprising a first outer pipe, a first corrugated pipe is arranged in the first outer pipe, one end of the first corrugated pipe is connected to a first inner pipe, the other end is connected to a first spherical channel, the first spherical channel is connected to an external pipe, a first spherical shell is arranged outside the first spherical channel, the first spherical shell is connected to one end of the first outer pipe, and a sealing assembly is arranged between the first inner pipe and the first outer pipe and between the first spherical channel and the first spherical shell.

[0008] In the above structure, the first inner pipe can move relative to the first outer pipe, and the first spherical channel can rotate in multiple directions relative to the first spherical shell, so that the above structure can adaptively rotate and axially adjust according to the subsidence amplitude of the ground, so that in the pipeline system, the process deformation can be eliminated to ensure the safety and stability of the well site process.

[0009] Further, the first inner tube extends out of one end of the first outer tube and is connected with a second bellow, the second bellow is connected with a second spherical channel, the second spherical channel is connected with a pipe opening, the outside of the second bellow is sleeved with a second outer tube, the second outer tube is connected with a second spherical shell, and the second spherical shell is sleeved outside the second spherical channel.

[0010] In the above structure, the second spherical channel can rotate in multiple directions relative to the second spherical shell, and the other end of the first inner tube further increases the rotation adjustment, so that the overall structure can be more flexible to adapt to environmental changes.

[0011] The outside of the first outer tube is connected with a first connecting frame, the outside of the second outer tube is connected with a second connecting frame, a first guide screw is slidably arranged between the first connecting frame and the second connecting frame, the first guide screw is threadedly connected with a first limiting nut and a first locking nut, one set of the first limiting nut and the first locking nut are arranged on both sides of the first connecting frame, and the other set of the first limiting nut and the first locking nut are arranged on both sides of the second connecting frame.

[0012] The first guide screw can ensure the stability of the first inner tube relative to the first outer tube during movement, and the screwing position of the first limiting nut and the first locking nut relative to the first guide screw can adjust the displacement range of the first inner tube relative to the first outer tube.

[0013] Specifically, the first spherical shell and the second spherical shell have the same structure and each include a left shell and a right shell, the left shell and the right shell are each provided with a third connecting frame, and the third connecting frames of the left shell and the right shell are fixedly connected through a first fixing screw and two first fixing nuts.

[0014] The left shell and the right shell are each provided with a fourth connecting frame, the first outer tube is provided with a fifth connecting frame, the first outer tube and the right shell of the first spherical shell are fixedly connected through the fifth connecting frame, the fourth connecting frame, a first bolt and a second fixing nut, the second outer tube is provided with a sixth connecting frame, and the second outer tube and the left shell of the second spherical shell are fixedly connected through the sixth connecting frame, the fourth connecting frame, a second bolt and a third fixing nut.

[0015] The end of the first outer tube and the first inner tube connected end is threadedly connected with a gland, a sealing rubber sleeve is arranged on the inner side of the gland, and the sealing rubber sleeve and the gland are arranged between the first outer tube and the first inner tube.

[0016] The sealing assembly is a sealing ring or a sealing gasket.

[0017] The first bellow is threadedly connected with the first spherical channel and the first inner tube at both ends respectively, and the second bellow is threadedly connected with the first inner tube and the second spherical channel at both ends respectively.

[0018] Further, the axial adjustment part includes a second inner tube, one end of the second inner tube is connected with the outer connecting tube away from the one end of the first spherical channel, the second inner tube is sleeved in the third outer tube, the outside of the second inner tube is provided with a seventh connecting frame, the outside of the third outer tube is provided with an eighth connecting frame, a second guide screw is slidably arranged between the seventh connecting frame and the eighth connecting frame, the second guide screw is threadedly connected with a second limiting nut and a second locking nut, one set of the second limiting nut and the second locking nut are arranged on the two sides of the seventh connecting frame, and the other set of the second limiting nut and the second locking nut are arranged on the two sides of the eighth connecting frame.

[0019] The outside of the third outer tube is sleeved with two clamps, and the two clamps are fixedly connected through a second fixing screw and a fourth fixing nut.

[0020] The utility model discloses reach the beneficial effect is:

[0021] The utility model discloses be applied to pipeline system, can be according to surface settlement amplitude self -adaptation axial adjustment and multidirectional adjustment to have multiple sealing protection structure, ensure the safety and stability of well site process;

[0022] The utility model discloses can be applied to oil well well site settlement environment, can multidirectional and axial arbitrary direction adjustment without stopping production, without moving fire, eliminate process deformation, thereby ensure oilfield production efficiency and safety.

[0023] The utility model discloses set up the bellows in the inside of external pipeline, and the structure of bellows has following advantages: one is, bellows can carry out telescopic action, adapts integral length change, two is, bellows can also swing along with the multidirectional angle rotation of spherical channel, thereby folds or opens, three is, bellows no matter in telescopic or swing, all keep self -sealed, guarantee fluid circulation. BRIEF DESCRIPTION OF DRAWINGS

[0024] The accompanying drawings are included to provide a further understanding of the utility model, and constitute a part of the specification, and are used to explain the utility model together with embodiments of the utility model, and do not constitute the limitation to the utility model.In the drawings:

[0025] Figure 1 It is structural schematic diagram (cross section) of the utility model embodiment one;

[0026] Figure 2 It is structural schematic diagram (cross section) of the utility model embodiment two;

[0027] Figure 3 It is structural schematic diagram (partially cross section) of the utility model embodiment two.

[0028] In the diagram: 1. Outer tube; 2. First spherical channel; 3. First corrugated pipe; 4. First inner tube; 5. Second corrugated pipe; 6. Second spherical channel; 7. Pipe opening; 8. Sealing gasket; 9. Left shell; 10. Third connecting frame; 11. First fixing nut; 12. First fixing screw; 13. Fourth connecting frame; 14. Fifth connecting frame; 15. First outer tube; 16. Sealing ring; 17. First guide screw; 18. Sealing sleeve; 19. First connecting frame; 20. Pressure cap; 21. First locking nut; 22. Second connecting frame; 23. First limit nut; 24. Second outer tube; 25. Second bolt; 26. Sixth connecting frame; 27. First bolt; 28. Right shell; 29. ​​Seventh connecting frame; 30. Third outer tube; 31. Eighth connecting frame; 32. Second guide screw; 33. Second locking nut; 34. Second limit nut; 35. Clamp; 36. Second inner tube. Detailed Implementation

[0029] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0030] Example 1:

[0031] like Figure 1 As shown, an adaptive pipe universal adjustment device includes a first outer pipe 15, a first corrugated pipe 3 disposed inside the first outer pipe 15, one end of the first corrugated pipe 3 connected to a first inner pipe 4, and the other end connected to a first spherical channel 2. The first spherical channel 2 is connected to an outer pipe 1, and a first spherical shell is sleeved on the outside of the first spherical channel 2. The first spherical shell is connected to one end of the first outer pipe 15. A sealing ring 16 is disposed between the first inner pipe 4 and the first outer pipe 15, and a sealing gasket 8 is disposed between the first spherical channel 2 and the first spherical shell, all of which perform a sealing function.

[0032] Furthermore, one end of the first inner tube 4 extending out of the first outer tube 15 is connected to a second corrugated tube 5. The second corrugated tube 5 is connected to a second spherical channel 6. The second spherical channel 6 is connected to a pipe opening 7. A second outer tube 24 is sleeved on the outside of the second corrugated tube 5. The second outer tube 24 is connected to a second spherical shell. The second spherical shell is sleeved on the outside of the second spherical channel 6. A sealing gasket 8 is also provided between the second spherical channel 6 and the second spherical shell.

[0033] Both the first spherical channel 2 and the second spherical channel 6 are spherical structures with fluid channels inside.

[0034] Both the port 7 and the external pipe 1 are used to connect to external fluid pipes and structures, and the fluid can flow through the first spherical channel 2, the first corrugated pipe 3, the first inner pipe 4, the second corrugated pipe 5 and the second spherical channel 6.

[0035] In the above structure, the first inner tube 4 can move relative to the first outer tube 15, the first spherical channel 2 can rotate in multiple directions relative to the first spherical shell, and the second spherical channel 6 can rotate in multiple directions relative to the second spherical shell, so that the overall structure can be adjusted in multiple directions to adapt to environmental changes flexibly.

[0036] The above structure has two direction adjusting structures that can rotate in multiple directions. When the direction of the pipeline changes, the two direction adjusting structures, like the human wrist and elbow joint, adjust in different directions, and one direction adjusting structure can keep the same direction as the pipeline connected to the outside, and the other direction adjusting structure adjusts the direction.

[0037] The first bellows 3 or the second bellows 5 are arranged inside the external pipeline, which increases the flexibility of the structure. The first bellows 3 or the second bellows 5 can be made of stainless steel bellows. The structure with bellows has the following advantages: first, the bellows can stretch and contract to adapt to length changes; second, the bellows can also swing with the multi-directional angular rotation of the spherical channel, thereby folding or opening (similar to the structure of a concertina); third, the bellows remain sealed whether they are stretching or swinging, ensuring fluid flow.

[0038] The first outer tube 15 and the second outer tube 24 are arranged outside, which has the functions of protecting the internal structure and limiting the overall length.

[0039] The first outer tube 15 is connected to the first connecting frame 19, and the second outer tube 24 is connected to the second connecting frame 22. The first connecting frame 19 and the second connecting frame 22 are slidably connected by the first guide screw 17. The first guide screw 17 is threadedly connected to the first limiting nut 23 and the first locking nut 21. One set of first limiting nuts 23 and first locking nuts 21 are arranged on both sides of the first connecting frame 19, and the other set of first limiting nuts 23 and first locking nuts 21 are arranged on both sides of the second connecting frame 22.

[0040] The first guide screw 17 can ensure the stability of the first inner tube 4 when it moves relative to the first outer tube 15. The screwing position of the first limiting nut 23 and the first locking nut 21 relative to the first guide screw 17 can adjust the displacement range of the first inner tube 4 relative to the first outer tube 15.

[0041] Specifically, the first spherical shell and the second spherical shell have the same structure and each include a left shell 9 and a right shell 28. The left shell 9 and the right shell 28 are each provided with a third connecting frame 10. The third connecting frames 10 of the left shell 9 and the right shell 28 are fixedly connected by the first fixing screw 12 and two first fixing nuts 11.

[0042] The fourth connecting frame 13 is arranged on the left shell 9 and the right shell 28, the fifth connecting frame 14 is arranged on the first outer pipe 15, the first outer pipe 15 is fixedly connected with the right shell 28 of the first spherical shell through the fifth connecting frame 14, the fourth connecting frame 13, the first bolt 27 and the second fixing nut (not shown in the figure), the sixth connecting frame 26 is arranged on the second outer pipe 24, and the second outer pipe 24 is fixedly connected with the left shell 9 of the second spherical shell through the sixth connecting frame 26, the fourth connecting frame 13, the second bolt 25 and the third fixing nut (not shown in the figure).

[0043] The end of the first outer pipe 15 connected with the first inner pipe 4 is provided with an internal thread, and the grommet 20 is connected through the internal thread, the inner side of the grommet 20 is provided with a sealing rubber sleeve 18, and the sealing rubber sleeve 18 and the grommet 20 are arranged between the first outer pipe 15 and the first inner pipe 4. The sealing rubber sleeve 18 has two functions, one is to assist in sealing, and the other is to adjust the damping size of the expansion and contraction movement between the two pipes by adjusting the compression tightness of the sealing rubber sleeve 18 through the grommet 20.

[0044] The first bellows 3 is respectively screwed and connected with the first spherical channel 2 and the first inner pipe 4 through threads at both ends, the second bellows 5 is respectively screwed and connected with the first inner pipe 4 and the second spherical channel 6 through threads at both ends, and a sealing assembly is arranged for sealing. The end of the first inner pipe 4 connected with the second bellows 5 is provided with a stepped surface, which can be flush with the end surface of the second outer pipe 24.

[0045] The connecting frames described above can be provided with two or more around the central axis of the structure.

[0046] The structure of the embodiment is adjusted in two ways, manual adjustment and self-adaptive adjustment, specifically:

[0047] 1. Manual adjustment: when the ground subsidence causes the length or direction of the pipeline to change, first loosen the second fixing nut on the first spherical shell and the third fixing nut on the second spherical shell, then loosen the first limiting nut 23 and the first locking nut 21 of the expansion structure control length, and then loosen the grommet 20 which plays an auxiliary role and a sliding damping role. Adjust the three structures respectively to make them the same as the length and direction change state of the deformed pipeline to avoid pipeline loosening and cracking.

[0048] 2. Self-adaptive adjustment: loosen the second fixing nut on the first spherical shell, the third fixing nut on the second spherical shell, the first limiting nut 23 and the first locking nut 21 of the expansion structure control length, and the grommet 20 by an appropriate amount. The size of loosening is set according to the variable and strength of the external pipeline process. When the pipeline process changes due to ground subsidence, the two direction adjusting structures and the expansion structure automatically adjust and compensate the direction and length.

[0049] Embodiment two:

[0050] As Figure 2 , Figure 3 shown, the embodiment is basically the same as embodiment one, the difference is that the embodiment also includes an axial adjustment part, the axial adjustment part includes a second inner tube 36, one end of the second inner tube 36 is connected with the outer connecting pipe 1 away from one end of the first spherical channel 2, the second inner tube 36 is sleeved in the third outer tube 30, the outside of the second inner tube 36 is provided with a seventh connecting bracket 29, the outside of the third outer tube 30 is provided with an eighth connecting bracket 31, a second guide screw 32 is slidably arranged between the seventh connecting bracket 29 and the eighth connecting bracket 31, the second guide screw 32 is threadedly connected with a second limiting nut 34 and a second locking nut 33, one set of the second limiting nut 34 and the second locking nut 33 are arranged on both sides of the seventh connecting bracket 29, and the other set of the second limiting nut 34 and the second locking nut 33 are arranged on both sides of the eighth connecting bracket 31. The second guide screw 32, the second limiting nut 34 and the second locking nut 33 can limit the maximum length of the pipeline expansion.

[0051] The axial adjustment part is an independent module, which can be installed in some working conditions to meet the length requirement of the overall structure. The second inner tube 36 in the above structure can be arranged as a pipeline structure with the outer connecting pipe 1, or can be welded together, or connected together through a flange, facilitating independent disassembly.

[0052] The axial adjustment part can also be installed at the end of the pipe opening 7.

[0053] The outside of the third outer tube 30 is sleeved with two clamps 35, and the two clamps 35 are fixedly connected by a second fixing screw and a fourth fixing nut. The clamp 35 can clamp the third outer tube 30 and the second inner tube 36 to prevent movement.

[0054] Between the third outer tube 30 and the second inner tube 36, a gland 20 and a sealing rubber sleeve 18 are also arranged.

[0055] The adjustment mode of the axial adjustment part in this embodiment is also divided into manual adjustment and self-adaptive adjustment, specifically:

[0056] 1. Manual adjustment: when the length of the pipeline changes, first loosen the second limiting nut 34 and the second locking nut 33, then loosen the fourth fixing nut on the gland 20 and the clamp 35, then adjust the pipeline to the appropriate length, and then tighten the gland 20 and other loosened parts one by one. Since the third outer tube 30 and the second inner tube 36 are dynamically sealed by the sealing ring 16, the length adjustment of the pipeline can be operated in a continuous flow state.

[0057] 2. Self-adapting adjustment: firstly, unscrew the fourth fixing nut of the gland 20 and the clamp 35, then retreat the second locking nut 33 to the bottom end, and then adjust the second limiting nut 34 to the maximum length allowed by the spherical channel pipe. When the ground subsidence changes the length of the pipe, and the strength of the stretching force reaches the set value, the third outer pipe 30 and the second inner pipe 36 will automatically move axially to compensate for the length under the stretching force of the external force. When the compensation value is equal to the changed length, the self-adapting adjustment ends.

Claims

1. An adaptive pipe universal adjustment device, characterized in that, The first outer tube (15) is provided with a first bellow (3) inside, one end of the first bellow (3) is connected with a first inner tube (4), the other end is connected with a first spherical channel (2), the first spherical channel (2) is connected with an outer connecting tube (1), a first spherical shell is sleeved outside the first spherical channel (2), the first spherical shell is connected with one end of the first outer tube (15), a sealing assembly is arranged between the first inner tube (4) and the first outer tube (15) and between the first spherical channel (2) and the first spherical shell; One end of the first inner tube (4) extending out of the first outer tube (15) is connected with a second bellow (5), the second bellow (5) is connected with a second spherical channel (6), the second spherical channel (6) is connected with a pipe opening (7), a second outer tube (24) is sleeved outside the second bellow (5), the second outer tube (24) is connected with a second spherical shell, the second spherical shell is sleeved outside the second spherical channel (6).

2. The self-adapting pipe gimbal adjustment device of claim 1, wherein, The first outer tube (15) is connected with a first connecting frame (19), the second outer tube (24) is connected with a second connecting frame (22), a first guide screw (17) is slidably arranged between the first connecting frame (19) and the second connecting frame (22), the first guide screw (17) is threadedly connected with a first limiting nut (23) and a first locking nut (21), one group of the first limiting nut (23) and the first locking nut (21) are arranged on the two sides of the first connecting frame (19), and the other group of the first limiting nut (23) and the first locking nut (21) are arranged on the two sides of the second connecting frame (22).

3. The self- adaptive pipe universal adjusting device according to claim 1, characterized in that, The first spherical shell and the second spherical shell are the same structure, both comprising a left shell (9) and a right shell (28), the left shell (9) and the right shell (28) are both provided with a third connecting frame (10), and the third connecting frames (10) of the left shell (9) and the right shell (28) are fixedly connected through a first fixing screw (12) and two first fixing nuts (11).

4. The self- adaptive pipe universal adjusting device according to claim 3, characterized in that, The left shell (9) and the right shell (28) are both provided with a fourth connecting frame (13), the first outer tube (15) is provided with a fifth connecting frame (14), the first outer tube (15) and the right shell (28) of the first spherical shell are fixedly connected through the fifth connecting frame (14), the fourth connecting frame (13), a first bolt (27) and a second fixing nut, the second outer tube (24) is provided with a sixth connecting frame (26), and the second outer tube (24) and the left shell (9) of the second spherical shell are fixedly connected through the sixth connecting frame (26), the fourth connecting frame (13), a second bolt (25) and a third fixing nut.

5. The self- adaptive pipe universal adjusting device according to claim 1, characterized in that, The end of the first outer tube (15) and the first inner tube (4) is threadedly connected with a gland (20), a sealing rubber sleeve (18) is arranged on the inner side of the gland (20), and the sealing rubber sleeve (18) and the gland (20) are arranged between the first outer tube (15) and the first inner tube (4).

6. The self- adaptive pipe universal adjusting device according to claim 1, characterized in that, The sealing assembly is a sealing ring (16) or a sealing gasket (8).

7. The self- adaptive pipe universal adjusting device according to claim 1, characterized in that, The first bellows (3) is connected with the first spherical channel (2) and the first inner tube (4) through threads at two ends respectively, and the second bellows (5) is connected with the first inner tube (4) and the second spherical channel (6) through threads at two ends respectively.

8. The self- adaptive pipe universal adjusting device according to claim 1, characterized in that, The axial adjustment part comprises a second inner tube (36), one end of the second inner tube (36) is connected with the outer connecting tube (1) away from the first spherical channel (2), the second inner tube (36) is sleeved in the third outer tube (30), the outside of the second inner tube (36) is provided with a seventh connecting frame (29), the outside of the third outer tube (30) is provided with an eighth connecting frame (31), the seventh connecting frame (29) and the eighth connecting frame (31) are provided with a second guide screw (32) slidingly penetrating therebetween, the second guide screw (32) is provided with a second limiting nut (34) and a second locking nut (33) in a threaded connection, one group of the second limiting nut (34) and the second locking nut (33) are arranged on the two sides of the seventh connecting frame (29), and the other group of the second limiting nut (34) and the second locking nut (33) are arranged on the two sides of the eighth connecting frame (31).

9. The self- adaptive pipe universal adjusting device according to claim 8, characterized in that, The outside of the third outer tube (30) is sleeved with two clamps (35), and the two clamps (35) are fixedly connected through a second fixing screw and a fourth fixing nut.

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