Pipeline under-pressure repairing device
By designing a pipe belt pressure repair device, including outer cuff belt, seal belt and pressure relief system, the problem of rapid and accurate repair of pipe bend pipes and flange welds in the prior art is solved, and efficient and safe repair results are achieved.
Patent Information
- Application Number
- CN202421729310.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-22
AI Technical Summary
The prior art cannot quickly and accurately repair the leakage of pipe bent pipes and flange welds, and under high pressure, unstable conditions such as cracking in the leak repair and loose fixing sleeve may occur.
A pipe pressure repair device is designed, including an outer cuff belt, a seal belt and a pressure relief system. Through a unique sealing ring design and pressure relief mechanism, it can achieve rapid and accurate repair at the bend pipe and flange welds, and remain stable under high pressure conditions.
It realizes rapid and accurate repair of leakage of bent pipes and flange welds, avoids problems such as cracking in the leak repair area and loosening of the fixing sleeve under high pressure, and improves repair efficiency and safety.
Smart Images
Figure CN222798475U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipeline pressure repair, in particular to a pipeline pressure repair device. Background Art
[0002] Pipelines are indispensable in daily life or industry, and pipeline leakage often occurs. In some chemical petroleum and shipbuilding industries, pipeline leakage often causes huge safety accidents and losses. A large part of pipeline leakage is caused by elbows (angle pipes: the change in the direction of liquid flow velocity causes the pipe wall to be eroded for a long time, and the pipe wall wears and leaks after a long time) and corrosion of flange welds. Once a leak occurs, emergency repair is difficult, which delays life and production and causes adverse effects.
[0003] However, in the prior art, for example, China Publication No.: A device for quickly repairing and plugging leaks in pressurized oil and gas pipelines, the utility model discloses a device for quickly repairing and plugging leaks in pressurized oil and gas pipelines, wherein two cross beams are arranged as supporting cross beams, and a base clamping sleeve nested in a position away from the pipeline compression crack is arranged at each end of the cross beam, and a left-lifting clamping sleeve and a right-lifting clamping sleeve are arranged on both sides close to the pipeline compression crack, respectively. The left-lifting clamping sleeve and the right-lifting clamping sleeve cooperate with the threads of the lifting connecting rod and the twisting lifting sleeve, and the twisting lifting sleeve is pressed against the supporting cross beam to respectively pull the left-side pipeline and the right-side pipeline close to the pipeline compression crack upward, so that the pipeline compression crack is reduced or even close to zero, which can greatly facilitate maintenance personnel to repair pipeline compression cracks, and is particularly suitable for situations where weld cracks occur in transportation pipelines buried in the soil under heavy loads, which can effectively improve the repair efficiency and provide a relatively clean work site for maintenance personnel.
[0004] However, this device does not have a sealing ring to tighten and repair leaks, and cannot repair leaks in elbows and flange welds. It is not designed based on the characteristics of the flange weld being close to the flange plate, the small space, the uneven weld thickness, and the circumferential direction of the weld. It cannot achieve fast and accurate pressure repair. The device does not have a pressure relief device. When the water outlet pressure is too high, a series of unstable situations may occur, such as rupture of the leak repair point and loosening of the fixing sleeve. Utility Model Content
[0005] The purpose of the utility model is to solve the problems existing in the prior art, that is, the leakage of elbows and flange welds cannot be repaired, and the design is not based on the characteristics of the flange welds being close to the flange plate, the space being narrow, the weld thickness being uneven, and the weld ring being circumferential, so that fast and accurate pressure repair cannot be achieved. When the water outlet pressure is too high, a series of unstable situations may occur, such as rupture of the leak repairing part and loosening of the fixing sleeve.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a pipeline pressure repair device comprises an outer band, the top of the outer band is fixedly connected with a first tightening shell, the inner surface of the first tightening shell is fixedly embedded with a first force rod, the outer band is fixedly connected with a second tightening shell on one side close to the first tightening shell, the inner surface of the second tightening shell is fixedly embedded with a second force rod, the internal thread of the second force rod is connected with a bolt, the outer surface of the bolt is rotatably connected to the inside of the first force rod, the end of the bolt close to the first force rod is fixedly connected with a hexagonal head, the first tightening shell is provided with a built-in groove, the outer surface of the hexagonal head is arranged inside the built-in groove, the inner surface of the outer band is fixedly embedded with a sealing belt, both sides of the inner surface of the sealing belt are fixedly connected with sealing rings, the bolt rotates inside the first force rod, and under the action of the rotating thread and the second force rod, the first tightening shell and the second tightening shell will approach each other, and the pipe diameter size, the curvature radius size, the curvature difference ratio of the outer diameter and the inner diameter are targeted and uniquely designed to achieve permanent maintenance and the same life as the pipeline.
[0007] As a preferred embodiment, the bottom of the sealing belt is connected to an upper through pipe, and the outer surface of the upper through pipe is fixedly embedded in the bottom of the outer hoop. When the water pressure is too large, the water will flow through the upper through pipe and push the drain shell.
[0008] As a preferred embodiment, the bottom of the upper through pipe is connected to a water outlet pipe, and a drain shell is movably embedded in the inner surface of the upper through pipe. Water flows through the upper through pipe and pushes the drain shell, the first force plate and the extrusion spring.
[0009] As a preferred embodiment, water outlets are provided on both sides of the water drain shell, and a first force-bearing plate is fixedly connected to the bottom of the water drain shell. When the water outlet on the outside of the water drain shell is exposed to the outside, water will flow through the water outlet and flow out from both ends of the water outlet pipe.
[0010] As a preferred embodiment, the bottom of the first force-bearing plate is fixedly connected to a spring, and the bottom of the spring is fixedly connected to a second force-bearing plate. When the water flow pressure is too large, the water flow will flow through the upper through pipe and push the drain shell, the first force-bearing plate and the extrusion spring.
[0011] As a preferred embodiment, the bottom of the second force-bearing plate is rotatably connected with an adjustment block, the outer surface of the adjustment block is threadedly connected with an internal threaded tube, the adjustment block rotates inside the internal threaded tube, and under the action of the rotating thread on the internal threaded tube, the adjustment block will move inside the internal threaded tube.
[0012] As a preferred embodiment, the top of the internally threaded pipe is connected to the bottom of the water outlet pipe, and the bottom of the regulating block is fixedly connected with an regulating rod, and the regulating rod can drive the regulating block to rotate.
[0013] As a preferred embodiment, a plurality of fixing rods are fixedly connected to the bottom of the adjusting rod, and a hand wheel is fixedly connected to one end of the fixing rods away from the adjusting rod, so that the adjusting rod can be driven by the fixing rods and the hand wheel.
[0014] Compared with the prior art, the advantages and positive effects of the utility model are:
[0015] 1. The utility model is provided with a sealing ring tightening and leak repairing structure, which can repair the leakage of elbow pipes and flange welds. It is designed according to the characteristics of flange welds close to flange plates, narrow space, uneven weld thickness, and circumferential welds, so as to achieve fast and accurate pressure repair.
[0016] 2. The utility model is provided with a pressure relief device to avoid a series of unstable situations such as excessive water pressure, rupture of the leak patch, loosening of the fixing sleeve, etc. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 A three-dimensional structural schematic diagram of a pipeline pressure repair device provided by the utility model;
[0018] Figure 2 A schematic diagram of the side structure of a pipeline pressure repair device provided by the utility model;
[0019] Figure 3 A schematic diagram of the disassembled structure of a pipeline pressure repair device provided by the utility model;
[0020] Figure 4 A schematic cross-sectional structure diagram of a pipeline pressure repair device provided by the utility model;
[0021] Figure 5 The utility model provides a schematic diagram of the disassembled structure of a pipeline pressure repair device.
[0022] Legend:
[0023] 1. Outer band; 2. First tightening shell; 3. First force-bearing rod; 4. Second tightening shell; 5. Second force-bearing rod; 6. Bolt; 7. Hexagon socket head; 8. Built-in groove; 9. Sealing band; 10. Sealing ring; 11. Upper through pipe; 12. Water outlet pipe; 13. Drain shell; 14. Water outlet; 15. First force-bearing plate; 16. Spring; 17. Second force-bearing plate; 18. Adjustment block; 19. Internal threaded pipe; 20. Adjustment rod; 21. Fixing rod; 22. Handwheel. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] See also Figure 1-5 The utility model provides a technical solution: a pipeline pressure repair device, including an outer band 1, a first tightening shell 2 is fixedly connected to the top of the outer band 1, a first force rod 3 is fixedly embedded on the inner surface of the first tightening shell 2, a second tightening shell 4 is fixedly connected to the side of the outer band 1 close to the first tightening shell 2, a second force rod 5 is fixedly embedded on the inner surface of the second tightening shell 4, a bolt 6 is threadedly connected to the inner surface of the second force rod 5, the outer surface of the bolt 6 is rotatably connected to the inside of the first force rod 3, and the bolt 6 is close to the first One end of the force-bearing rod 3 is fixedly connected to a hexagonal head 7, a built-in groove 8 is opened on the first tightening shell 2, the outer surface of the hexagonal head 7 is arranged inside the built-in groove 8, a sealing belt 9 is fixedly embedded on the inner surface of the outer hoop 1, and sealing rings 10 are fixedly connected on both sides of the inner surface of the sealing belt 9. The outer hoop 1 will tighten the internal sealing belt 9, and the sealing ring 10 on the inner surface of the sealing belt 9 will fix the leaking elbow when tightening. The unique self-sealing sealing ring design makes the sealing effect better and withstands greater pressure.
[0026] like Figure 1-5 As shown, the bottom of the sealing belt 9 is connected to an upper through pipe 11, and the outer surface of the upper through pipe 11 is fixedly embedded in the bottom of the outer hoop 1. When the water pressure is too high, the water will flow through the upper through pipe 11 and push the drain shell 13. In view of the high pressure of the pipeline, a pressure relief valve can also be installed on the repair device to achieve the effect of safety belt pressure repair.
[0027] like Figure 1-5 As shown, the bottom of the upper through pipe 11 is connected to a water outlet pipe 12 , and a water discharge shell 13 is movably embedded in the inner surface of the upper through pipe 11 . Water flows through the upper through pipe 11 and pushes the water discharge shell 13 , the first force plate 15 and the extrusion spring 16 .
[0028] like Figure 1-5 As shown, water outlets 14 are provided on both sides of the drain shell 13, and a first force-bearing plate 15 is fixedly connected to the bottom of the drain shell 13. When the water outlet 14 on the outside of the drain shell 13 is exposed to the outside, water will flow through the water outlet 14 and flow out from both ends of the outlet pipe 12.
[0029] like Figure 1-5As shown, the bottom of the first force plate 15 is fixedly connected to a spring 16, and the bottom of the spring 16 is fixedly connected to a second force plate 17. When the water flow pressure is too large, the water flow will flow through the upper through pipe 11 and push the drain shell 13, the first force plate 15 and the extrusion spring 16.
[0030] like Figure 1-5 As shown, the bottom of the second force-bearing plate 17 is rotatably connected with an adjusting block 18, and the outer surface of the adjusting block 18 is threadedly connected with an internal threaded tube 19. The adjusting block 18 rotates inside the internal threaded tube 19, and under the action of the rotating thread on the internal threaded tube 19, the adjusting block 18 will move inside the internal threaded tube 19.
[0031] like Figure 1-5 As shown, the top of the internal threaded tube 19 is connected to the bottom of the water outlet pipe 12, and the bottom of the adjusting block 18 is fixedly connected with an adjusting rod 20, and the adjusting rod 20 can drive the adjusting block 18 to rotate.
[0032] like Figure 1-5 As shown, a plurality of fixing rods 21 are fixedly connected to the bottom of the adjusting rod 20 , and a hand wheel 22 is fixedly connected to one end of the fixing rods 21 away from the adjusting rod 20 . The adjusting rod 20 can be driven by the fixing rods 21 and the hand wheel 22 .
[0033] Working principle: When the elbow leaks, the sealing belt 9 and the outer band 1 are sleeved on the leaking part, and then the hexagon head 7 is rotated inside the built-in groove 8, and the bolt 6 is rotated inside the first force-bearing rod 3. Under the action of the rotating thread and the second force-bearing rod 5, the first tightening shell 2 and the second tightening shell 4 will approach each other, and the outer band 1 will tighten the internal sealing belt 9. The sealing ring 10 on the inner surface of the sealing belt 9 will fix the leaking elbow when tightened. At this time, the leaked water flow will remain inside the sealing belt 9. When the water flow pressure is too large, the water flow will flow through the upper through pipe 11 and push the drain shell 13, the first force plate 15 and the extrusion spring 16. When the water outlet 14 on the outside of the drain shell 13 is exposed to the outside, the water flow will pass through the water outlet 14 and flow out from both ends of the outlet pipe 12. When needed When adjusting the pressure relief threshold, the adjusting rod 20 can be driven by the fixing rod 21 and the hand wheel 22, and the adjusting block 18 can be rotated inside the internal threaded tube 19. Under the action of the rotating thread on the internal threaded tube 19, the adjusting block 18 will move inside the internal threaded tube 19. When moving, the adjusting block 18 will pass through the second force plate 17, squeeze the spring 16 above, so that the elastic potential energy of the spring 16 changes, and the force of the water flow pushing the drain shell 13 again will change. The pressure repair of this patent is designed according to the characteristics of the flange weld close to the flange plate, small space, uneven weld thickness, and circumferential weld ring, so as to achieve fast and accurate pressure repair. The outer shell metal material repair device with flange has a larger pressure-bearing range. The metal material can be made of any steel with a certain strength such as carbon steel, stainless steel, etc.
[0034] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.
Claims
1. A pipeline pressure repair device, characterized in that: The invention comprises an outer band (1), the top of which is fixedly connected to a first tightening shell (2), the inner surface of which is fixedly embedded with a first force-bearing rod (3), the outer band (1) is fixedly connected to a second tightening shell (4) on one side close to the first tightening shell (2), the inner surface of which is fixedly embedded with a second force-bearing rod (5), the inner thread of which is connected to a bolt (6), the outer surface of which is rotatably connected to the inside of the first force-bearing rod (3), the end of which is close to the first force-bearing rod (3) is fixedly connected to a hexagonal head (7), the first tightening shell (2) is provided with an inner groove (8), the outer surface of which is arranged inside the inner groove (8), the inner surface of which is fixedly embedded with a sealing band (9), the inner surface of which is fixedly connected with sealing rings (10).
2. A pipeline pressure repair device according to claim 1, characterized in that: The bottom of the sealing belt (9) is connected to an upper through pipe (11), and the outer surface of the upper through pipe (11) is fixedly embedded in the bottom of the outer hoop belt (1).
3. A pipeline pressure repair device according to claim 2, characterized in that: The bottom of the upper through pipe (11) is connected to a water outlet pipe (12), and a water discharge shell (13) is movably embedded in the inner surface of the upper through pipe (11).
4. A pipeline pressure repair device according to claim 3, characterized in that: Water outlets (14) are provided on both sides of the water discharge shell (13), and a first force-bearing plate (15) is fixedly connected to the bottom of the water discharge shell (13).
5. A pipeline pressure repair device according to claim 4, characterized in that: The bottom of the first force-bearing plate (15) is fixedly connected to a spring (16), and the bottom of the spring (16) is fixedly connected to a second force-bearing plate (17).
6. A pipeline pressure repair device according to claim 5, characterized in that: The bottom of the second force-bearing plate (17) is rotatably connected to an adjusting block (18), and the outer surface of the adjusting block (18) is threadedly connected to an internally threaded tube (19).
7. A pipeline pressure repair device according to claim 6, characterized in that: The top of the internally threaded pipe (19) is connected to the bottom of the water outlet pipe (12), and the bottom of the regulating block (18) is fixedly connected to an regulating rod (20).
8. The pipeline pressure repair device according to claim 7, characterized in that: A plurality of fixing rods (21) are fixedly connected to the bottom of the adjusting rod (20), and a hand wheel (22) is fixedly connected to one end of the fixing rods (21) away from the adjusting rod (20).