Anti-corrosion strait-crossing gas pipeline

CN224786628UActive Publication Date: 2026-09-22XIAMEN SPECIAL EQUIP INSPECTION & TESTING INST
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Patent Information

Application Number
CN202522144574.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-10
Publication Date
2026-09-22
Estimated Expiration
2035-10-10

AI Technical Summary

Technical Problem

[0003]一般燃气管道和燃气管道之间是通过焊接的方式进行连接的,该方法是可以有效的固定两段管道,但是在海底管道之间的焊接地方会因为海水产生腐蚀,从而导致焊缝出现裂缝,进而影响了燃气的输送

Benefits of technology

[0013](1)本实用新型通过转动位移机构带动第二管道向第一管道的方向移动,然后密封块进入到密封槽的内部,从而增加了第一管道和第二管道之间密封性,这样不需要焊接可以对接两根管道,从而减少的管道受腐蚀的影响,进而增加了管道的实用性。

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of anti-corrosion strait gas pipeline, including first pipeline, first fixed plate and sliding slot, the side of first pipeline is slidably connected with second pipeline, first fixed plate is fixedly connected in the side of first pipeline, the both sides of second pipeline are fixedly connected with mounting plate, sliding slot is opened in the inside of mounting plate, limit mechanism is arranged in the inside of sliding slot, limit mechanism is used to fix first pipeline and second pipeline, displacement mechanism is arranged between first fixed plate and mounting plate, displacement mechanism is used to drive second pipeline to move. The utility model is to solve the problem that general gas pipeline and gas pipeline are connected by welding mode, this method can effectively fix two sections of pipeline, but welding place between submarine pipeline can be corroded due to seawater, so as to cause weld to appear crack, and then affect the gas delivery problem.
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Description

Technical Field

[0001] This utility model relates to the field of gas pipeline technology, specifically a corrosion-resistant gas pipeline crossing a strait. Background Technology

[0002] A cross-strait gas pipeline refers to the construction of a gas pipeline in a strait region to transport natural gas from one area to another. Such pipelines need to cope with complex seabed topography and marine environments, thus requiring a range of advanced technologies to ensure their safe, reliable, and efficient operation.

[0003] Gas pipelines are typically connected by welding, a method that effectively secures the two sections. However, seawater corrosion can cause cracks in the welds between subsea pipelines, affecting gas delivery. Utility Model Content

[0004] The purpose of this invention is to provide a corrosion-resistant gas pipeline crossing a strait to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a first pipe, a first fixing plate, and a sliding groove. A second pipe is slidably connected to one side of the first pipe. The first fixing plate is fixedly connected to one side of the first pipe. Mounting plates are fixedly connected to both sides of the second pipe. The sliding groove is formed inside the mounting plate. A limiting mechanism is provided inside the sliding groove to fix the first and second pipes. A displacement mechanism is provided between the first fixing plate and the mounting plate to move the second pipe.

[0006] As a further preferred embodiment of this technical solution, the limiting mechanism includes a slider, which is slidably connected inside the slide groove. A spring is fixedly connected between the top of the slider and the inner wall of the slide groove. A slide rod is slidably connected inside the mounting plate. The bottom of the slide rod is fixedly connected to the top of the slider, and a fixing block is fixedly connected to the top of the slide rod.

[0007] As a further preferred embodiment of this technical solution, the limiting mechanism further includes a locking block, which is fixedly connected to the bottom of the slider. A protrusion is fixedly connected to one side of the first fixing plate, one end of the protrusion extends into the interior of the slide groove, and a locking groove is formed on the top of the protrusion, with one end of the locking block extending into the interior of the locking groove.

[0008] As a further preferred embodiment of this technical solution, one end of the protrusion is provided with a bevel.

[0009] As a further preferred embodiment of this technical solution, the displacement mechanism includes a threaded rod, which is rotatably connected to one side of the first fixed plate. The outer side of the threaded rod is threadedly connected to the inner side of the mounting plate, and a throttle is fixedly connected to one end of the threaded rod.

[0010] As a further preferred embodiment of this technical solution, the displacement mechanism further includes a second fixing plate, which is fixedly connected to one side of the first pipe. A guide rod is fixedly connected to one side of the second fixing plate, and the outer side of the guide rod is slidably connected to the inside of another mounting plate. A limit block is fixedly connected to one end of the guide rod.

[0011] As a further preferred embodiment of this technical solution, a sealing groove is provided inside the first pipe, and a sealing block is fixedly connected to one side of the second pipe, with one end of the sealing block extending into the interior of the sealing groove.

[0012] This utility model provides a corrosion-resistant gas pipeline crossing a strait, which has the following beneficial effects:

[0013] (1) This utility model uses a rotation displacement mechanism to drive the second pipe to move towards the first pipe, and then the sealing block enters the interior of the sealing groove, thereby increasing the sealing between the first pipe and the second pipe. This eliminates the need for welding to connect the two pipes, thereby reducing the impact of corrosion on the pipes and increasing the practicality of the pipes.

[0014] (2) The present invention can further fix and limit the two pipes through the limiting mechanism, thereby avoiding the problem of pipe loosening caused by vibration of the displacement mechanism due to external factors, and thus increasing the stability of the pipe. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a side view of the three-dimensional structure of the present invention;

[0017] Figure 3 This is a schematic diagram of the limiting mechanism structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the displacement mechanism structure of this utility model;

[0019] In the diagram: 1. First pipe; 2. Second pipe; 3. Fixing block; 4. First fixing plate; 5. Mounting plate; 6. Threaded rod; 7. Turning handle; 8. Second fixing plate; 9. Sealing block; 10. Protrusion; 11. Spring; 12. Sliding rod; 13. Sliding block; 14. Locking block; 15. Sliding groove; 16. Locking groove; 17. Limiting block; 18. Guide rod; 19. Sealing groove. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] This utility model provides a technical solution: such as Figures 1-4 As shown in this embodiment, a corrosion-resistant gas pipeline crossing a strait includes a first pipeline 1, a first fixing plate 4, and a sliding groove 15. A second pipeline 2 is slidably connected to one side of the first pipeline 1. The first fixing plate 4 is fixedly connected to one side of the first pipeline 1. Mounting plates 5 are fixedly connected to both sides of the second pipeline 2. The sliding groove 15 is opened inside the mounting plate 5. A limiting mechanism is provided inside the sliding groove 15 to fix the first pipeline 1 and the second pipeline 2. A displacement mechanism is provided between the first fixing plate 4 and the mounting plate 5 to drive the second pipeline 2 to move. A sealing groove 19 is opened inside the first pipeline 1. A sealing block 9 is fixedly connected to one side of the second pipeline 2, and one end of the sealing block 9 extends into the interior of the sealing groove 19.

[0022] First, the second pipe 2 is moved towards the first pipe 1 by rotating the displacement mechanism. Then, the sealing block 9 enters the interior of the sealing groove 19, thereby increasing the sealing between the first pipe 1 and the second pipe 2. This eliminates the need for welding to connect the two pipes, reducing the impact of corrosion and increasing the practicality of the pipes. Then, when the second pipe 2 approaches the first pipe 1, the limiting mechanism can further fix and limit the two pipes, thereby avoiding the problem of pipe loosening due to vibration of the displacement mechanism caused by external factors, and thus increasing the stability of the pipes.

[0023] like Figures 1-4 As shown, the limiting mechanism includes a slider 13, which is slidably connected inside the slide groove 15. A spring 11 is fixedly connected between the top of the slider 13 and the inner wall of the slide groove 15. A slide rod 12 is slidably connected inside the mounting plate 5. The bottom of the slide rod 12 is fixedly connected to the top of the slider 13. A fixing block 3 is fixedly connected to the top of the slide rod 12. The limiting mechanism also includes a locking block 14, which is fixedly connected to the bottom of the slider 13. A protrusion 10 is fixedly connected to one side of the first fixing plate 4. One end of the protrusion 10 extends into the interior of the slide groove 15. A slot 16 is provided on the top of the protrusion 10. One end of the locking block 14 extends into the interior of the slot 16. A slope is provided on one end of the protrusion 10.

[0024] When the pipe is limited, the protrusion 10 enters the interior of the slide groove 15, and then the inclined surface of the protrusion 10 abuts against the inclined surface of the locking block 14, thereby driving the locking block 14 to move and simultaneously driving the slider 13 to move to compress the spring 11. Then, when the locking groove 16 moves to the bottom of the locking block 14, the reaction force of the spring 11 drives the locking block 14 into the interior of the locking groove 16, thereby further fixing the first pipe 1 and the second pipe 2. When the fixing is released, the fixing block 3 needs to be pulled to drive the slide rod 12 to move and simultaneously drive the slider 13 to move, then drive the locking block 14 to disengage from the interior of the locking groove 16, and then the fixing can be easily released.

[0025] like Figures 1-4 As shown, the displacement mechanism includes a threaded rod 6, which is rotatably connected to one side of the first fixed plate 4. The outer side of the threaded rod 6 is threadedly connected to the inside of the mounting plate 5. A handle 7 is fixedly connected to one end of the threaded rod 6. The displacement mechanism also includes a second fixed plate 8, which is fixedly connected to one side of the first pipe 1. A guide rod 18 is fixedly connected to one side of the second fixed plate 8. The outer side of the guide rod 18 is slidably connected to the inside of another mounting plate 5. A limit block 17 is fixedly connected to one end of the guide rod 18.

[0026] When connecting the first pipe 1 and the second pipe 2, the screw rod 6 is rotated by turning the handle 7, which in turn moves the mounting plate 5. Then, the second pipe 2 moves and the other mounting plate 5 slides on the outside of the guide rod 18. The guide rod 18 can prevent the second pipe 2 from deviating when it moves. Then, the movement of the second pipe 2 moves the sealing block 9 into the interior of the sealing groove 19, thereby increasing the sealing between the pipes.

[0027] This utility model provides a corrosion-resistant gas pipeline crossing a strait. The specific working principle is as follows: First, when connecting the first pipeline 1 and the second pipeline 2, rotating the handle 7 drives the threaded rod 6 to rotate, simultaneously moving the mounting plate 5. Then, the second pipeline 2 moves, causing another mounting plate 5 to slide outside the guide rod 18. The guide rod 18 prevents the second pipeline 2 from shifting during movement. Next, the movement of the second pipeline 2 causes the sealing block 9 to enter the sealing groove 19, thereby increasing the sealing between the pipelines. Finally, when limiting the pipeline position, the protrusion 10... Entering the interior of the slide groove 15, the inclined surface of the protrusion 10 abuts against the inclined surface of the locking block 14, thereby driving the locking block 14 to move and simultaneously driving the slider 13 to move, compressing the spring 11. Then, when the slot 16 moves to the bottom of the locking block 14, the reaction force of the spring 11 drives the locking block 14 into the interior of the slot 16, thereby further fixing the first pipe 1 and the second pipe 2. When releasing the fixation, it is necessary to pull the fixing block 3 to drive the slide rod 12 to move and simultaneously drive the slider 13 to move, thereby driving the locking block 14 to disengage from the interior of the slot 16, and then the fixation can be easily released.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A corrosion-resistant gas pipeline crossing a strait, comprising a first pipeline (1), a first fixing plate (4), and a chute (15), characterized in that: A second pipe (2) is slidably connected to one side of the first pipe (1). The first fixing plate (4) is fixedly connected to one side of the first pipe (1). Mounting plates (5) are fixedly connected to both sides of the second pipe (2). The slide groove (15) is opened inside the mounting plate (5). A limiting mechanism is provided inside the slide groove (15). The limiting mechanism is used to fix the first pipe (1) and the second pipe (2). A displacement mechanism is provided between the first fixing plate (4) and the mounting plate (5). The displacement mechanism is used to drive the second pipe (2) to move.

2. The corrosion-resistant gas pipeline crossing a strait according to claim 1, characterized in that: The limiting mechanism includes a slider (13), which is slidably connected inside the slide groove (15). A spring (11) is fixedly connected between the top of the slider (13) and the inner wall of the slide groove (15). A slide rod (12) is slidably connected inside the mounting plate (5). The bottom of the slide rod (12) is fixedly connected to the top of the slider (13). A fixing block (3) is fixedly connected to the top of the slide rod (12).

3. A corrosion-resistant gas pipeline crossing a strait according to claim 2, characterized in that: The limiting mechanism also includes a locking block (14), which is fixedly connected to the bottom of the slider (13). A protrusion (10) is fixedly connected to one side of the first fixing plate (4). One end of the protrusion (10) extends into the interior of the slide groove (15). A slot (16) is provided on the top of the protrusion (10), and one end of the locking block (14) extends into the interior of the slot (16).

4. A corrosion-resistant gas pipeline crossing a strait according to claim 3, characterized in that: One end of the protrusion (10) is provided with a bevel.

5. A corrosion-resistant gas pipeline crossing a strait according to claim 1, characterized in that: The displacement mechanism includes a threaded rod (6), which is rotatably connected to one side of the first fixed plate (4). The outer side of the threaded rod (6) is threadedly connected to the inside of the mounting plate (5). A throttle (7) is fixedly connected to one end of the threaded rod (6).

6. A corrosion-resistant gas pipeline crossing a strait according to claim 1, characterized in that: The displacement mechanism also includes a second fixing plate (8), which is fixedly connected to one side of the first pipe (1). A guide rod (18) is fixedly connected to one side of the second fixing plate (8). The outer side of the guide rod (18) is slidably connected to the inside of another mounting plate (5). One end of the guide rod (18) is fixedly connected to a limit block (17).

7. A corrosion-resistant gas pipeline crossing a strait according to claim 1, characterized in that: The first pipe (1) has a sealing groove (19) inside, and a sealing block (9) is fixedly connected to one side of the second pipe (2), with one end of the sealing block (9) extending into the interior of the sealing groove (19).