Offshore oil and gas engineering pipeline maintenance device

By using a cylinder-driven push rod and sliding plate design in the offshore oil and gas pipeline maintenance device, the problem of pipeline rolling and moving on the maintenance platform is solved, achieving stable clamping and spraying of protective coatings, thus improving maintenance efficiency and pipeline life.

CN223519632UActive Publication Date: 2025-11-07YANTAI SALVAGE BUREAU MINISTRY OF TRANSPORT
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Patent Information

Application Number
CN202423160835.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2025-11-07
Estimated Expiration
2034-12-20

AI Technical Summary

Technical Problem

In existing technologies, offshore oil and gas pipelines are prone to rolling and moving on maintenance platforms, which increases maintenance difficulty and reduces work efficiency.

Method used

A maintenance device for offshore oil and gas pipelines has been designed, including a cylinder and a connecting block set in a groove on the maintenance platform. The cylinder drives a push rod and a sliding plate to achieve stable clamping of the pipeline, and is equipped with a spraying mechanism to spray a protective coating on the outer surface of the pipeline.

Benefits of technology

It achieves stable clamping of pipelines, improves maintenance efficiency, and extends the service life of pipelines through spraying.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an offshore oil and gas engineering pipeline maintenance device, and belongs to the technical field of offshore oil and gas engineering. Comprising a maintenance table and a maintenance clamping mechanism, a groove is formed in the upper surface of the maintenance table, the maintenance clamping mechanism comprises a rectangular plate, the rectangular plate is mounted on the upper surface of the maintenance table, limiting blocks are mounted at the two ends of the upper surface of the rectangular plate correspondingly, and a sliding plate is slidably mounted on the upper surface of the rectangular plate; a clamping plate is installed at the top end of the sliding plate, and the air cylinder is installed in the groove. A connecting block is installed at the telescopic end of an air cylinder, a pushing rod is rotationally connected to the connecting block, one end of the pushing rod is rotationally connected with a sliding plate, the pushing rod can be driven to move through vertical movement of the connecting block, the sliding plate can be driven to move, the distance between the two clamping plates can be shortened so that a pipeline can be stably clamped, and the pipeline can be stably maintained; the use effect is improved, time is saved, and working efficiency is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to offshore oil and gas engineering technical field, specifically, relate to a kind of offshore oil and gas engineering pipeline maintenance device. BACKGROUND

[0002] The top of sea is equipped with clamping plate offshore oil and gas engineering refers to the exploration, exploitation, production and transportation of oil and gas resources in marine environment, as well as the construction of oil and gas fields from the seabed or ocean bottom, oil and gas wells, submarine pipeline laying, offshore platform construction and the maintenance of related equipment and infrastructure, when carrying out offshore oil and gas engineering, pipeline is usually placed in seawater, in order to avoid seawater erosion pipeline to cause unnecessary loss, so it needs to be maintained regularly.

[0003] At present, the pipeline maintenance mode is to place the pipeline on the maintenance table for operation, but when the pipeline is placed on the maintenance table for operation, the pipeline is prone to rolling and moving, which increases the difficulty of maintaining the pipeline, and the staff needs to adjust constantly, wasting time and reducing work efficiency. UTILITARIAN CONTENT

[0004] In order to make up for the above shortcomings, the utility model provides a kind of offshore oil and gas engineering pipeline maintenance device to overcome the above technical problems or at least partially solve the above problems.

[0005] The utility model is realized as follows:

[0006] The utility model provides a kind of offshore oil and gas engineering pipeline maintenance device, including maintenance table, and recess is provided on the upper surface of maintenance table;

[0007] Maintenance clamping mechanism, the maintenance clamping mechanism includes;

[0008] Rectangular plate, the rectangular plate is installed on the upper surface of maintenance table, and limiting block is installed at the position of both ends of the upper surface of rectangular plate respectively;

[0009] Sliding plate, the sliding plate is slidably installed on the upper surface of rectangular plate, and clamping plate is installed at the top end of sliding plate;

[0010] Air cylinder, the air cylinder is installed in the inside of recess, the telescopic end of the air cylinder is installed with connecting block, the connecting block is rotatably installed with push rod, and the push rod is rotatably connected with sliding plate.

[0011] In a preferred scheme, the connecting block is fixedly installed at the telescopic end of air cylinder, the inside of connecting block is hollow, and four push rods are rotatably installed in the inside of connecting block, and the four push rods are rotatably connected with respective corresponding sliding plate.

[0012] In a preferred scheme, a connecting plate is fixedly installed on the outer surface of the connecting block, an upper surface of the connecting plate is fixedly installed with a rotating vertical plate, and a connecting rod is rotatably installed at a position inside the vertical plate, one end of the connecting rod is rotatably connected with the sliding plate.

[0013] In a preferred scheme, the clamping plates are arranged in an arc shape, and a rubber bottom pad is fixedly installed at a position inside the clamping plates, for clamping the pipeline.

[0014] In a preferred scheme, air holes are arranged at a position of the inner bottom of the groove, and the air holes are arranged in a plurality of and uniformly arranged at the position of the inner bottom of the groove, and the bottom of the maintenance platform is fixedly installed with supporting legs.

[0015] In a preferred scheme, a spraying mechanism is installed on the maintenance platform, the spraying mechanism comprises a pump body, a liquid collecting tank and an annular spray pipe, and the pump body and the liquid collecting tank are both installed on the upper surface of the maintenance platform.

[0016] In a preferred scheme, a liquid delivery pipe is fixedly installed at the liquid inlet end of the pump body, one end of the liquid delivery pipe is installed inside the liquid collecting tank, a liquid outlet pipe is fixedly installed at the liquid outlet end of the pump body, and one end of the liquid outlet pipe is in communication with the inside of the annular spray pipe.

[0017] In a preferred scheme, an annular plate is fixedly installed on the upper surface of the maintenance platform, the annular spray pipe is fixedly installed at a position inside the annular plate, and the liquid outlet pipe penetrates through the inside of the annular plate for use.

[0018] The offshore oil and gas engineering pipeline maintenance device has the following beneficial effects:

[0019] 1. The maintenance platform is provided with a groove, the inside of the groove is provided with an air cylinder, the telescopic end of the air cylinder is installed with a connecting block, the connecting block is rotatably connected with a pushing rod, one end of the pushing rod is rotatably connected with a sliding plate, the up-down movement of the connecting block can drive the pushing rod to move, which drives the sliding plate to move, narrows the distance between the two clamping plates, and the pipeline can be stably clamped, the pipeline can be stably maintained, the use effect is improved, time is saved, and work efficiency is improved.

[0020] 2. The maintenance platform is provided with a liquid collecting tank, and the maintenance platform is provided with a pump body, the protective coating in the inside of the liquid collecting tank is extracted by the pump body, the protective coating is delivered to the inside of the annular spray pipe, and the annular spray pipe is sprayed through the holes at the position of the annular spray pipe, so that the outer surface of the pipeline is fully sprayed, and the service life of the pipeline is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings used in the embodiments of the present application will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0022] Figure 1 is the front view structural schematic diagram of the present application;

[0023] Figure 2 is the clamping plate structural schematic diagram of the present application;

[0024] Figure 3 is the connecting block structural schematic diagram of the present application;

[0025] Figure 4 is the connecting plate structural schematic diagram of the present application.

[0026] In the figure: 1, maintenance platform; 2, groove; 3, maintenance clamping mechanism; 31, rectangular plate; 311, limiting block; 32, sliding plate; 321, clamping plate; 33, air cylinder; 331, connecting block; 332, push rod; 4, connecting plate; 5, vertical plate; 6, connecting rod; 7, rubber bottom pad; 8, air hole; 9, supporting leg; 10, spraying mechanism; 101, pump body; 102, liquid collecting tank; 103, annular spray pipe; 11, liquid conveying pipe; 12, liquid outlet pipe; 13, annular plate. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0028] EMBODIMENT

[0029] WITH REFERENCE Figures 1-4The utility model provides a technical scheme: a kind of offshore oil and gas engineering pipeline maintenance device, including maintenance platform 1 and maintenance clamping mechanism 3, and recess 2 is provided on the upper surface of maintenance platform 1, maintenance clamping mechanism 3 includes rectangular plate 31, rectangular plate 31 is installed on the upper surface of maintenance platform 1, and limiting block 311 is respectively installed at the position of both ends of rectangular plate 31 upper surface, sliding plate 32 is slidably installed on the upper surface of rectangular plate 31, and clamping plate 321 is installed at the top end of sliding plate 32, cylinder 33 is installed in recess 2, and connecting block 331 is installed at the telescopic end of cylinder 33, push rod 332 is rotatably installed on connecting block 331, and push rod 332 is rotatably connected with sliding plate 32.

[0030] By being provided with recess 2 on maintenance platform 1, cylinder 33 is provided in recess 2, connecting block 331 is installed at the telescopic end of cylinder 33, push rod 332 is rotatably connected on connecting block 331, one end of push rod 332 is rotatably connected with sliding plate 32, the up-and-down movement of connecting block 331 can drive push rod 332 to move, which can drive sliding plate 32 to move, and the distance between two clamping plates 321 is narrowed to stably clamp pipeline, so that the pipeline can be stably maintained, and the use effect is improved.

[0031] In a preferred embodiment, connecting block 331 is fixedly installed at the telescopic end of cylinder 33, the inside of connecting block 331 is hollow, and four push rods 332 are rotatably installed in the inside of connecting block 331, the four push rods 332 are rotatably connected with respective sliding plates 32, connecting block 331 is installed at the telescopic end of cylinder 33, and the telescopic end of cylinder 33 can drive the four push rods 332 to move simultaneously, so as to drive sliding plate 32 to move, realize clamping and releasing of pipeline, and facilitate use.

[0032] In a preferred embodiment, connecting plate 4 is fixedly installed on the outer surface of connecting block 331, vertical plate 5 is fixedly rotatably installed on the upper surface of connecting plate 4, and connecting rod 6 is rotatably installed on the inner side of vertical plate 5, one end of connecting rod 6 is rotatably connected with sliding plate 32, in order to improve the control of the movement of sliding plate 32, connecting plate 4 is also installed on connecting block 331, connecting plate 4 is fixedly connected with the outer surface of connecting block 331, so that connecting plate 4 can be stably used, connecting rod 6 is rotatably installed on connecting plate 4, and connecting rod 6 is rotatably connected with sliding plate 32, when controlling the movement of connecting block 331, not only push rod 332 is driven to rotate, but also connecting rod 6 is driven to rotate, connecting rod 6 drives the position of the end of sliding plate 32 to move, so that the stable movement of sliding plate 32 can be controlled, and the clamping and maintenance of pipeline can be realized.

[0033] In a preferred embodiment, the clamping plate 321 is arranged in an arc shape, and a rubber bottom pad 7 is fixedly installed at the inner side of the clamping plate 321, which is used for clamping the pipeline. In order to avoid damage to the pipeline during clamping, a rubber bottom pad 7 is installed at the inner side of the clamping plate 321. The rubber bottom pad 7 is soft in material, which can avoid damage to the pipeline during clamping.

[0034] Vent holes 8 are arranged at the bottom of the groove 2, and the vent holes 8 are arranged in several groups and uniformly arranged at the bottom of the groove 2. The bottom of the maintenance platform 1 is fixedly installed with a supporting leg 9.

[0035] In order to prolong the service life of the pipeline, a spraying mechanism 10 is installed on the maintenance platform 1. The spraying mechanism 10 includes a pump body 101, a liquid collecting tank 102, and an annular spray pipe 103. The pump body 101 and the liquid collecting tank 102 are both installed on the upper surface of the maintenance platform 1. A liquid inlet pipe 11 is fixedly installed on the liquid inlet end of the pump body 101. One end of the liquid inlet pipe 11 is installed in the interior of the liquid collecting tank 102. A liquid outlet pipe 12 is fixedly installed on the liquid outlet end of the pump body 101. One end of the liquid outlet pipe 12 is in communication with the interior of the annular spray pipe 103. An annular plate 13 is fixedly installed on the upper surface of the maintenance platform 1. The annular spray pipe 103 is fixedly installed at the inner side of the annular plate 13. The liquid outlet pipe 12 penetrates through the interior of the annular plate 13.

[0036] In actual use, when the pipeline moves to the interior of the annular plate 13, the pump body 101 can be opened. The pump body 101 can extract the protective coating in the interior of the liquid collecting tank 102. The protective coating used by the device is a liquid and is stored in the interior of the liquid collecting tank 102. After the protective coating is extracted by the pump body 101, it is transported through the interior of the liquid outlet pipe 12. The protective coating in the interior of the liquid outlet pipe 12 is transported to the interior of the annular spray pipe 103. A small-aperture outlet hole is arranged at the inner side of the annular spray pipe 103. The liquid is sprayed from the interior of the outlet hole to the outer surface of the pipeline to prolong the service life of the pipeline.

[0037] Specifically, the working process or working principle of the offshore oil and gas engineering pipeline maintenance device is as follows: the current pipeline maintenance method is to place the pipeline on the maintenance platform 1 for operation. When the pipeline is placed on the maintenance platform 1 for operation, the pipeline is prone to rolling and moving, which increases the difficulty of maintaining the pipeline, requires the workers to constantly adjust, wastes time, and reduces the work efficiency. Therefore, the device is designed to solve the problem.

[0038] The device can clamp the pipeline to maintain and repair the pipeline, ensure the normal use of the pipeline, and use the clamping plate 321 to clamp the pipeline stably, avoid loosening, and improve the maintenance effect of the pipeline. The specific operation is to connect the device with the power supply outside, place the pipeline on the maintenance table 1, and place the pipeline in the position corresponding to the clamping plate 321. At this time, open the air cylinder 33, and the retraction of the telescopic end of the air cylinder 33 can drive the connecting block 331 to move downward. The connecting block 331 moves downward while driving the push rod 332 to rotate upward. The push rod 332 rotates and pulls the two sliding plates 32 to move relatively, narrowing the distance between the two sliding plates 32 and the distance between the two clamping plates 321. The clamping plate 321 can clamp the pipeline.

[0039] The pipeline is stably clamped on the clamping plate 321, so that the worker can maintain and repair the pipeline in time to ensure the normal use of the pipeline. After the pipeline maintenance is completed, the telescopic end of the air cylinder 33 can move upward and drive the connecting block 331 to move upward. The connecting block 331 moves upward while driving the push rod 332 to rotate downward, expanding the distance between the two clamping plates 321 and releasing the clamping of the pipeline, so that the pipeline can move normally.

[0040] One end of the pipeline is pulled to pass through the position inside the annular plate 13. When the pipeline moves to the inside of the annular plate 13, the pump body 101 can be opened. The pump body 101 can extract the protective coating inside the liquid tank 102. The protective coating used by the device is a liquid and is stored inside the liquid tank 102. After the protective coating is extracted by the pump body 101, it is transported inside the liquid outlet pipe 12 to the inside of the annular nozzle 103. The inside of the annular nozzle 103 is provided with a small-aperture outlet hole. The liquid is sprayed from the inside of the outlet hole. Because the aperture is small, the liquid can be sprayed in the form of mist, and the outer surface of the pipeline is fully sprayed. Spraying the protective coating on the outer surface of the pipeline can improve the service life of the pipeline.

Claims

1. An offshore oil and gas field pipeline maintenance apparatus, characterised in that, It includes maintenance platform (1), and is provided with recess (2) on the upper surface of maintenance platform (1); Maintenance clamping mechanism (3), the maintenance clamping mechanism (3) includes; Rectangular plate (31) is installed on the upper surface of maintenance platform (1), and limiting block (311) is installed on the upper surface of rectangular plate (31) at both ends respectively; Sliding plate (32) is slidingly installed on the upper surface of rectangular plate (31), and clamping plate (321) is installed on the top end of sliding plate (32); Cylinder (33) is installed in the inside of recess (2), the telescopic end of cylinder (33) is installed with connecting block (331), the connecting block (331) is rotatably installed with push rod (332), and the push rod (332) is rotatably connected with sliding plate (32).

2. An offshore oil and gas field pipeline maintenance apparatus according to claim 1, characterised in that, The connecting block (331) is fixedly installed on the telescopic end of the cylinder (33), the inside of the connecting block (331) is provided with a hollow, and four push rods (332) are rotatably installed in the inside of the connecting block (331), and the four push rods (332) are rotatably connected with the respective corresponding sliding plates (32).

3. An offshore oil and gas field pipeline maintenance apparatus according to claim 2, wherein, The connecting plate (4) is fixedly installed on the outer surface of the connecting block (331), the upper surface of the connecting plate (4) is fixedly rotatably installed with vertical plate (5), and the connecting rod (6) is rotatably installed on the inner side of the vertical plate (5), one end of the connecting rod (6) is rotatably connected with the sliding plate (32).

4. An offshore oil and gas field pipeline maintenance apparatus according to claim 3, wherein, The clamping plate (321) is provided in the shape of an arc, and rubber bottom pad (7) is fixedly installed on the inner side of the clamping plate (321) for clamping the pipeline.

5. An offshore oil and gas field pipeline maintenance apparatus as claimed in claim 4, wherein, Ventilation holes (8) are formed on the bottom of the recess (2), and the ventilation holes (8) are evenly arranged on the bottom of the recess (2), and the bottom of the maintenance platform (1) is fixedly installed with supporting legs (9).

6. An offshore oil and gas field pipeline maintenance apparatus as claimed in claim 5, wherein, The maintenance platform (1) is provided with a spraying mechanism (10), the spraying mechanism (10) comprises a pump body (101), a liquid collecting tank (102) and an annular spray pipe (103), the pump body (101) and the liquid collecting tank (102) are installed on the upper surface of the maintenance platform (1).

7. An offshore oil and gas field pipeline maintenance apparatus as claimed in claim 6, wherein, The liquid inlet end of the pump body (101) is fixedly installed with a liquid inlet pipe (11), one end of the liquid inlet pipe (11) is installed in the inside of the liquid collecting tank (102), the liquid outlet end of the pump body (101) is fixedly installed with a liquid outlet pipe (12), and one end of the liquid outlet pipe (12) is in communication with the inside of the annular spray pipe (103).

8. An offshore oil and gas field pipeline maintenance apparatus according to claim 7, wherein, The upper surface of the maintenance platform (1) is fixedly installed with an annular plate (13), the annular spray pipe (103) is fixedly installed on the inner side of the annular plate (13), and the liquid outlet pipe (12) penetrates the inside of the annular plate (13) for use.