Underwater oil and gas pipeline butt joint device

Abstract

The utility model discloses an underwater oil and gas pipeline butt joint device which comprises a working table and a collecting box, an air cylinder is installed at the right end of the working table, a movable working table is arranged at the right end of the air cylinder, a vertical plate is arranged at the right end of the movable working table, and the collecting box is arranged at the lower end of the vertical plate. A conveying pipe is arranged at the bottom end of the collecting box, a spray head is installed at the upper end of the conveying pipe, a connecting hole is formed in the bottom face of the movable workbench, a movable groove is formed in the upper end of the movable workbench, and an open hole is formed in the movable groove. According to the underwater oil and gas pipeline butt joint device, through threaded connection between a threaded rod and a threaded hole plate, the positions of rubber discs can be conveniently adjusted, the rubber discs on the two sides move in the opposite directions, an oil and gas pipeline can be clamped, the limiting effect is achieved, a collecting box can store lubricating oil, and the lubricating oil is conveyed into a moving groove through a spray head; and the movable seat can be lubricated, and friction between the movable seat and the movable groove is prevented.

Description

Technical Field

[0001] This utility model relates to the field of underwater oil and gas pipeline technology, specifically to an underwater oil and gas pipeline docking device. Background Technology

[0002] Subsea oil and gas pipelines are sealed pipes that continuously transport large quantities of oil (gas) underwater. They are a major component of offshore oil (gas) field development and production systems, and represent the fastest, safest, and most economical and reliable method of offshore oil and gas transportation. To ensure the safe operation of subsea oil and gas pipelines throughout their designed lifespan, the pipeline system must be adequately protected against internal and external corrosion caused by the transported medium and water. Subsea oil and gas pipeline connection is a technology that uses seals and fasteners to connect two pipes or fittings. It involves steps such as processing the pipe end faces, installing seals, and tightening fasteners. During the connection process, it is necessary to ensure the flatness and smoothness of the pipe end faces to ensure the sealing effect of the seals and the tightness of the fasteners. A docking device is used to keep the two ends of the subsea oil and gas pipelines on the same horizontal line. An automated process is used to fit the ends of the subsea oil and gas pipelines together, and then workers use bolts to secure them.

[0003] For example, application number CN202122563137.6 discloses a docking device for coated oil and gas pipelines, relating to the field of pipeline docking technology. It includes a first docking pipe, a first flange fitted around the annular surface of the first docking pipe, a second docking pipe installed at one end of the first docking pipe, and a second flange fitted around the annular surface of the second docking pipe. Multiple threaded rods are movably mounted on the first and second flanges. An external gear ring is fitted around the annular surface of each of the multiple threaded rods on the first flange. An internal gear ring is rotatably mounted on one side of the first flange. This invention, by rotatably setting an internal gear ring on one side of the first flange that meshes with multiple external gear rings, allows the multiple external gear rings to rotate by rotating the internal gear ring, thus rotating multiple threaded rods synchronously. This avoids rotating and tightening the threaded rods one by one, saving time and manpower, and increasing the efficiency of oil and gas pipeline docking.

[0004] The above applications currently have the following shortcomings:

[0005] The existing device can be moved and adjusted over a long period of time, which can cause damage and rust inside the moving slot, resulting in jamming during the movement and adjustment.

[0006] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and proposed an underwater oil and gas pipeline docking device in order to achieve a more practical purpose. Utility Model Content

[0007] The purpose of this invention is to provide an underwater oil and gas pipeline docking device to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: an underwater oil and gas pipeline docking device, comprising a workbench and a collection box, wherein a cylinder is installed at the right end of the workbench, and a movable workbench is provided at the right end of the cylinder, a vertical plate is provided at the right end of the movable workbench, the collection box is located at the lower end of the vertical plate, a conveying pipe is provided at the bottom end of the collection box, and a nozzle is installed at the upper end of the conveying pipe, a connection hole is provided on the bottom surface of the movable workbench, and a moving groove is provided at the upper end of the movable workbench, and an opening is provided inside the moving groove.

[0009] Furthermore, a fixing strip is provided at the upper end of the workbench, and a sliding groove is provided on the left side of the fixing strip, and a fixing tube support is installed at the upper end of the fixing strip.

[0010] Furthermore, a fixing cylinder is provided inside the slide groove, and a threaded hole plate is provided at the upper end of the fixing cylinder.

[0011] Furthermore, a threaded rod is inserted inside the threaded plate, and a rubber disc is placed at the rear end of the threaded rod.

[0012] Furthermore, a movable tube support is installed on the left side inside the slide, and three movable tube supports are provided, with connecting rods provided between the movable tube supports on the movable worktable.

[0013] Furthermore, the bottom end of the movable tube support is provided with an insertion rod, and a movable base is provided below the movable tube support, with an insertion hole inside the movable base.

[0014] Furthermore, a control panel is installed on the inner wall of the vertical plate, and an electric telescopic rod is installed at the end of the control panel.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This underwater oil and gas pipeline docking device adopts a lubrication structure, which can ensure the smoothness of the moving seat and avoid jamming. At the same time, the adjustment structure can better facilitate docking.

[0017] 2. This utility model utilizes a threaded connection between a threaded rod and a threaded hole plate to facilitate adjustment of the rubber disc's position. This allows the two rubber discs to move towards each other, clamping the oil and gas pipeline and providing a limiting function. Simultaneously, the movable pipe support, fixed pipe support, and oil and gas pipeline can form a locking connection, thereby improving the stability of the oil and gas pipeline. The cylinder can adjust the distance between the worktable and the movable worktable, enabling the two opposing oil and gas pipelines to move towards each other, bringing their ends closer together. Furthermore, the electric telescopic rod can further adjust the movable pipe support on the movable worktable to more precisely ensure the oil and gas pipeline ends contact each other, completing the docking operation. The collection box stores lubricating oil, which is then delivered to the interior of the movable slot via a nozzle, lubricating the movable seat and preventing friction between it and the movable slot. The collection box also collects excess dripping lubricating oil for reuse. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of an underwater oil and gas pipeline docking device according to the present invention;

[0019] Figure 2 This is a rear-view three-dimensional structural diagram of an underwater oil and gas pipeline docking device according to the present invention;

[0020] Figure 3 This is a three-dimensional structural diagram of a movable pipe support for an underwater oil and gas pipeline docking device according to the present invention.

[0021] Figure 4 This is a three-dimensional structural diagram of the delivery pipe of an underwater oil and gas pipeline docking device according to this utility model.

[0022] In the diagram: 1. Workbench; 2. Slide groove; 3. Fixed cylinder; 4. Threaded hole plate; 5. Threaded rod; 6. Rubber disc; 7. Moving pipe support; 8. Fixing strip; 9. Fixed pipe support; 10. Cylinder; 11. Moving workbench; 12. Moving groove; 13. Connecting rod; 14. Electric telescopic rod; 15. Vertical plate; 16. Collection box; 17. Control panel; 18. Delivery pipe; 19. Connecting hole; 20. Insertion rod; 21. Insertion hole; 22. Moving base; 23. Opening; 24. Nozzle. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] like Figures 1-4As shown, an underwater oil and gas pipeline docking device includes a workbench 1 and a collection box 16. A cylinder 10 is installed at the right end of the workbench 1, and a movable workbench 11 is provided at the right end of the cylinder 10. A vertical plate 15 is provided at the right end of the movable workbench 11. The collection box 16 is located at the lower end of the vertical plate 15. A conveying pipe 18 is provided at the bottom end of the collection box 16, and a nozzle 24 is installed at the upper end of the conveying pipe 18. A connection hole 19 is opened on the bottom surface of the movable workbench 11, and a moving groove 12 is provided at the upper end of the movable workbench 11. An opening 23 is opened inside the moving groove 12, and the opening 23 cooperates with the nozzle 24. A fixing strip 8 is provided at the upper end of the workbench 1, and a slide groove 2 is provided on the left side of the fixing strip 8. A fixing tube support 9 is installed at the upper end of the fixing strip 8. A fixing cylinder 3 is provided inside the slide groove 2, and a threaded hole plate 4 is provided at the upper end of the fixing cylinder 3. A threaded rod 5 passes through the threaded hole plate 4, and a rubber disc 6 is placed at the rear end of the threaded rod 5. A movable tube support 7 is installed on the left side of the slide groove 2, and three movable tube supports 7 are provided. A connecting rod 13 is provided between the movable tube supports 7 on the movable workbench 11. An insertion rod 20 is provided at the bottom end of the movable tube support 7, and a movable seat 22 is provided below the movable tube support 7. An insertion hole 21 is provided inside the movable seat 22. A control panel 17 is installed on the inner wall of the vertical plate 15, and an electric telescopic rod 14 is installed at the end of the control panel 17. The position of the rubber disc 6 is easily adjusted through the threaded connection between the threaded rod 5 and the threaded hole plate 4. The two rubber discs 6 on both sides move towards each other, which can clamp the oil and gas pipes and play a limiting role. At the same time, the movable pipe support 7, the fixed pipe support 9 and the oil and gas pipes can form a locking connection, thereby improving the stability of the oil and gas pipes. The cylinder 10 can adjust the distance between the worktable 1 and the movable worktable 11, so that the two oil and gas pipes moving towards each other can move their ends closer to each other. At the same time, the electric telescopic rod 14 can further adjust the movable pipe support 7 on the movable worktable 11 to make the ends of the oil and gas pipes contact each other more precisely, thus completing the docking work. The collection box 16 can store the lubricating oil and use the nozzle 24 to deliver the lubricating oil to the inside of the movable groove 12, which can lubricate the movable seat 22 and prevent friction between the movable seat 22 and the movable groove 12. At the same time, the collection box 16 can also collect excess dripping lubricating oil for reuse.

[0025] Working principle: When this underwater oil and gas pipeline docking device is in use, it first... Figures 1-4Replace the movable pipe support 7 and the fixed pipe support 9 according to the size of the oil and gas pipeline, so that the movable pipe support 7 and the fixed pipe support 9 can form a locking structure with the oil and gas pipeline. After locking, rotate the threaded rod 5 so that the rubber disc 6 at the end contacts the outer wall of the oil and gas pipeline. The rubber discs 6 on both sides then clamp and fix the oil and gas pipeline. Then place another oil and gas pipeline on the movable pipe support 7 on the movable worktable 11. Activate the cylinder 10 so that the movable worktable 11 can move closer to the worktable 1. When the ends of the oil and gas pipelines at the top of the two pipes fail to contact, activate the electric control via the control panel 17. The telescopic rod 14 pushes the movable pipe support 7 on the movable worktable 11 to move, thereby bringing the oil and gas pipes on the movable worktable 11 closer to the oil and gas pipes on the worktable 1, so that the ends of the two oil and gas pipes can contact each other and complete the docking work. If rust will appear inside the movable groove 12 on the movable worktable 11 after long-term use, lubricating oil can be poured directly into it to lubricate and protect the movable groove 12. At the same time, the excess lubricating oil will flow into the collection box 16 and be sprayed back into the interior of the movable groove 12 through the nozzle 24, so as to achieve a secondary use.

[0026] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An underwater oil and gas pipeline docking device, comprising a workbench (1) and a collection box (16), characterized in that, A cylinder (10) is installed on the right end of the workbench (1), and a movable workbench (11) is provided on the right end of the cylinder (10). A vertical plate (15) is provided on the right end of the movable workbench (11). A collection box (16) is located at the lower end of the vertical plate (15). A conveying pipe (18) is provided at the bottom end of the collection box (16), and a nozzle (24) is installed at the upper end of the conveying pipe (18). A connecting hole (19) is provided on the bottom surface of the movable workbench (11), and a moving groove (12) is provided at the upper end of the movable workbench (11). An opening (23) is provided inside the moving groove (12).

2. The underwater oil and gas pipeline docking device according to claim 1, characterized in that, The upper end of the workbench (1) is provided with a fixing strip (8), and a sliding groove (2) is provided on the left side of the fixing strip (8). A fixing tube support (9) is installed on the upper end of the fixing strip (8).

3. The underwater oil and gas pipeline docking device according to claim 2, characterized in that, The inside of the slide (2) is provided with a fixed cylinder (3), and the upper end of the fixed cylinder (3) is provided with a threaded hole plate (4).

4. The underwater oil and gas pipeline docking device according to claim 3, characterized in that, The threaded plate (4) has a threaded rod (5) inside, and a rubber disc (6) is placed at the rear end of the threaded rod (5).

5. The underwater oil and gas pipeline docking device according to claim 2, characterized in that, The sliding groove (2) has a movable tube support (7) installed on its inner left side, and there are three movable tube supports (7). A connecting rod (13) is provided between the movable tube supports (7) on the movable worktable (11).

6. The underwater oil and gas pipeline docking device according to claim 5, characterized in that, The bottom end of the movable tube support (7) is provided with an insertion rod (20), and a movable seat (22) is provided below the movable tube support (7), and an insertion hole (21) is provided inside the movable seat (22).

7. The underwater oil and gas pipeline docking device according to claim 1, characterized in that, The inner wall of the vertical plate (15) is equipped with a control panel (17), and an electric telescopic rod (14) is installed at the end of the control panel (17).

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