Preventive reinforcing and leaking stoppage device for petroleum pipeline
By using the crucible and vortex coil in the heating chamber to melt the alloy powder in the preventive reinforcement and plugging device of the oil pipeline to form a protective shell, the problem that the existing technology cannot improve the strength and deformation of the pipeline is solved, and effective plugging of the pipeline is achieved and reinforcement extends service life.
Patent Information
- Application Number
- CN202420135519.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-19
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-01-19
AI Technical Summary
Existing oil pipeline leak plugging tools cannot effectively improve the pipeline strength at the damaged area, and external extrusion causes pipeline deformation, affecting service life.
A preventive reinforcement and leakage plugging device for oil pipelines is designed. By setting up a crucible and vortex coil in the heating chamber, melting the vortex heating alloy powder, forming a protective shell to thicken the side walls of the pipeline to achieve leakage plugging and reinforcement.
By recasting the alloy protective shell on the outside of the pipeline, the thickness of the pipeline wall is increased, the strength of the damaged area is increased, the service life of the pipeline is extended, and the emergence of pores after the alloy solution is cooled.
Smart Images
Figure CN222186245U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of pipeline leak plugging and reinforcing devices, in particular to a preventive reinforcing and leak plugging device for petroleum pipelines. Background Art
[0002] Offshore oil extraction requires the use of pipelines to transport crude oil, but during long-term use, the pipeline is subject to the risk of damage and leakage due to long-term corrosion by seawater and sea breeze. The corrosion damage of the pipeline is mainly manifested in severe rust on the surface of the sea pipe and thinning of the pipe wall. The current temporary plugging tool for sea pipes uses a multi-bolt squeeze rubber cylinder. By setting a sealing rubber cylinder on the outside of the pipeline, and then tightening the bolts with bolts, the two pipe clamps squeeze the rubber cylinder to achieve sealing and plugging. Although this can plug the pipeline, the strength of the pipeline at the damaged part is not improved, resulting in the expansion of the damaged part. At the same time, since the thickness of the pipe wall at the damaged part becomes thinner, the external squeezing will also cause the pipeline to deform, seriously affecting the service life of the pipeline.
[0003] Therefore, we need to design a preventive reinforcement and plugging device for oil pipelines to solve these problems. Utility Model Content
[0004] The problem to be solved by the utility model is to provide a preventive reinforcement and plugging device for a petroleum pipeline, which is particularly suitable for plugging and reinforcing the pipeline.
[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:
[0006] A preventive reinforcement and plugging device for oil pipelines comprises an upper pipe clamp and a lower pipe clamp, the upper pipe clamp is connected to the lower pipe clamp by fastening bolts, sealing pads are fitted on the inner walls of the upper pipe clamp and the lower pipe clamp, a heating chamber is fixedly provided on the upper pipe clamp, a cover plate is fitted on the heating chamber, a plurality of crucibles are arranged in the heating chamber, an output end of the crucible is connected to the inner side of the upper pipe clamp, a partition is rotatably arranged in the output end of the crucible, the crucible above the partition is filled with alloy powder, an eddy current coil is fitted on the outer side of the crucible, a partition between two adjacent crucibles is rotatably connected by a rotating shaft, a worm gear is fixedly mounted on one of the rotating shafts, a driving motor is provided on one side of the worm gear, a worm is fixedly arranged at the output end of the driving motor, and the worm is meshed with the worm gear.
[0007] Preferably, a preheating tube is also provided on the crucible, one end of the preheating tube is connected to the output end of the crucible, and the connection point is located below the partition, and the other end of the preheating tube is connected to the pot body of the crucible, and the connection point is located above the alloy powder.
[0008] Such a setting is used to preheat the gap between the upper pipe clamp, the lower pipe clamp and the pipeline, so as to avoid the formation of pores after the high-temperature alloy solution is filled and cooled, thereby affecting the strength of the alloy protective shell.
[0009] Preferably, the heating chamber is filled with a heat insulating filler, and the heat insulating filler and the sealing gasket are both made of asbestos.
[0010] In this way, the heat-insulating filler can reduce the heat diffusion when the crucible is heated, avoid the over-high temperature of the hot chamber to scald the staff, and prevent the alloy solution from filling the gap to cause damage to the sealing gasket.
[0011] Preferably, the upper pipe clamp and the lower pipe clamp are both fixedly provided with lifting rings.
[0012] Such an arrangement makes it easy to lift the upper pipe clamp and the lower pipe clamp.
[0013] Preferably, a hinge is provided on one side where the upper tube clamp and the lower tube clamp are in contact with each other, and the hinges are divided into two groups. A limit block, a connecting block and a limit frame are provided between the two groups of hinges. The connecting block and the limit block are respectively fixedly provided on the upper tube clamp and the lower tube clamp, and one end of the limit frame is hinged on the connecting block, and the other end is engaged with the limit block.
[0014] Such an arrangement enables the upper pipe clamp and the lower pipe clamp to be quickly assembled and fixed.
[0015] Preferably, the angle between the output end axis of the preheating tube and the horizontal plane is a, and 0° <a<30°。
[0016] Such an arrangement can prevent the molten alloy solution from flowing into the preheating tube and causing the preheating tube to be blocked after cooling.
[0017] Preferably, the lifting ring is respectively installed on the upper pipe clamp and the lower pipe clamp through threads.
[0018] Such arrangement makes it easy to install and connect the lifting ring with the upper pipe clamp and the lower pipe clamp.
[0019] The advantages and positive effects of the utility model are:
[0020] The utility model arranges multiple groups of crucibles in a heating bin, presets alloy powder in the crucibles, melts the alloy powder by eddy current heating, and then injects the molten alloy solution into the gap between the upper pipe clamp and the lower pipe clamp to complete recasting on the outer side of the pipeline to form a protective shell, thereby achieving thickening of the side wall of the pipeline and completing the anti-leakage reinforcement and leak plugging of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0022] Figure 1 This is a schematic diagram of the axonometric structure of the utility model after assembly;
[0023] Figure 2 It is a schematic diagram of the cross-section of the internal structure of the heating chamber of the utility model;
[0024] Figure 3 It is a cross-sectional schematic diagram of the internal structure of the heating chamber of the utility model;
[0025] Figure 4 yes Figure 3 A magnified view of the structure in Figure 2.
[0026] The following are the descriptions of the reference numerals:
[0027] 1. Cover plate; 2. Heating chamber; 3. Lifting ring; 4. Hinge; 5. Fastening bolts; 6. Lower pipe clamp; 7. Upper pipe clamp; 8. Alloy powder; 9. Sealing gasket; 10. Eddy current coil; 11. Limiting frame; 12. Limiting block; 13. Insulating filler; 14. Crucible; 15. Preheating tube; 16. Rotating shaft; 17. Partition; 18. Driving motor; 19. Worm gear; 20. Worm; 21. Connecting block. DETAILED DESCRIPTION
[0028] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.
[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.
[0030] The utility model is further described below in conjunction with the accompanying drawings:
[0031] Example 1: Figure 1-Figure 4 As shown, a preventive reinforcement and plugging device for oil pipelines includes an upper pipe clamp 7 and a lower pipe clamp 6, the upper pipe clamp 7 is connected to the lower pipe clamp 6 by a fastening bolt 5, and sealing pads 9 are fitted on the inner walls of the upper pipe clamp 7 and the lower pipe clamp 6, a heating chamber 2 is fixedly provided on the upper pipe clamp 7, a cover plate 1 is fitted on the heating chamber 2, a plurality of crucibles 14 are arranged in the heating chamber 2, the output end of the crucible 14 is connected to the inner side of the upper pipe clamp 7, a partition 17 is rotatably arranged in the output end of the crucible 14, the crucible 14 above the partition 17 is filled with alloy powder 8, an eddy current coil 10 is fitted on the outer side of the crucible 14, the partition 17 between two adjacent crucibles 14 is rotatably connected by a rotating shaft 16, one of the rotating shafts 16 is also fixedly sleeved with a worm gear 19, a driving motor 18 is provided on one side of the worm gear 19, a worm 20 is fixedly arranged at the output end of the driving motor 18, and the worm 20 is meshed with the worm gear 19.
[0032] Specifically, a preheating tube 15 is also provided on the crucible 14, one end of the preheating tube 15 is connected to the output end of the crucible 14, and the connection point is located below the partition 17, and the other end of the preheating tube 15 is connected to the pot body of the crucible 14, and the connection point is located above the alloy powder 8. This arrangement is used to preheat the gap between the upper tube clamp 7, the lower tube clamp 6 and the pipeline to avoid the formation of pores after the high-temperature alloy solution is filled and cooled, thereby affecting the strength of the alloy protective shell.
[0033] Specifically, the heating chamber 2 is filled with an insulating filler 13, and the insulating filler 13 and the sealing gasket 9 are both made of asbestos. The insulating filler 13 can reduce the heat diffusion when the crucible 14 is heated, avoid the heating chamber temperature being too high to scald the staff, and avoid damage to the sealing gasket 9 after the alloy solution fills the gap.
[0034] Specifically, the upper pipe clamp 7 and the lower pipe clamp 6 are both fixedly provided with lifting rings 3, so that the upper pipe clamp 7 and the lower pipe clamp 6 can be lifted easily.
[0035] Specifically, a hinge 4 is also provided on one side where the upper pipe clamp 7 and the lower pipe clamp 6 are fitted together. There are two groups of hinges 4. A limiting block 12, a connecting block 21, and a limiting frame 11 are also provided between the two groups of hinges 4. The connecting block 21 and the limiting block 12 are respectively fixedly provided on the upper pipe clamp 7 and the lower pipe clamp 6. One end of the limiting frame 11 is hinged to the connecting block 21, and the other end is engaged with the limiting block 12. Such a setting can quickly make the upper pipe clamp 7 and the lower pipe clamp 6 be assembled and fixed.
[0036] Specifically, the axis of the output end of the preheating pipe 15 forms an angle a with the horizontal plane, and 0° < a < 30°. Such a setting can prevent the molten alloy solution from flowing into the preheating pipe 15 and causing the preheating pipe 15 to be blocked after cooling.
[0037] Specifically, the lifting rings 3 are respectively installed on the upper pipe clamp 7 and the lower pipe clamp 6 by threads. Such a setting facilitates the installation and connection of the lifting rings 3 with the upper pipe clamp 7 and the lower pipe clamp 6.
[0038] The working process of this embodiment: This device is mainly used for preventive reinforcement and leakage plugging of submarine pipelines on the sea surface. Generally, the pipelines on the seabed will be lifted by a crane on the ship to the water surface and then reinforced.
[0039] During use, first lift the upper pipe clamp 7 by a lifting device. Since the lower pipe clamp 6 and the upper pipe clamp 7 are hinged to each other by the hinge 4, the lower pipe clamp 6 will also be lifted after the upper pipe clamp 7 is lifted, and the lower pipe clamp 6 will open. Then place the upper pipe clamp 7 on the pipeline to be reinforced. Then rotate the lower pipe clamp 6 by using the hinge 4 to make the lower pipe clamp 6 fit with the upper pipe clamp 7. Then fix the upper pipe clamp 7 and the lower pipe clamp 6 together by tightening bolts 5.
[0040] Then open the cover plate 1, and then add metal powder into the crucible 14. It should be noted that the filling height of the metal powder in the crucible 14 should not exceed the connection height of the crucible 14 and the preheating pipe 15. Then cover the cover plate 1 back on the heating chamber 2. Then start the eddy current coil 10. After the eddy current coil 10 is powered on, it will heat the alloy powder 8 in the crucible 14. The alloy powder 8 melts after being heated. When the alloy powder 8 melts, start the driving motor 18. Drive the turbine to rotate through the worm 20 on the driving motor 18. After the worm gear 19 rotates, the alloy solution will flow from the output end of the crucible 14 into the gap formed by the upper pipe clamp 7, the lower pipe clamp 6 and the pipeline. After the alloy solution cools, an alloy protective shell will be recast on the outside of the pipeline, which can thicken the wall thickness of the pipeline and achieve preventive reinforcement and leakage plugging of the pipeline.
[0041] Among them, in order to avoid the appearance of pores in the alloy protective shell after casting due to the low temperature of the gap between the upper tube clamp 7 and the lower tube clamp 6 and the pipeline when the alloy solution is filled, a preheating tube 15 is also provided on the crucible 14. The high-temperature gas after the alloy powder 8 in the crucible 14 is melted is introduced into the gap between the upper tube clamp 7 and the lower tube clamp 6 and the pipeline through the preheating tube 15 for preheating, so as to reduce the appearance of pores and improve the quality and strength of the alloy protective shell.
[0042] In order to prevent the alloy solution after the alloy powder 8 is melted from flowing into the preheating tube 15 when casting the alloy protective shell, the angle a between the output end angular axis of the preheating tube 15 and the horizontal plane is between 0° and 30 degrees to avoid reverse flow and blockage of the preheating tube 15.
[0043] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.
Claims
1. A preventive reinforcement and plugging device for a petroleum pipeline, comprising an upper pipe clamp (7) and a lower pipe clamp (6), wherein the upper pipe clamp (7) and the lower pipe clamp (6) are connected by a fastening bolt (5). Features: The inner walls of the upper tube clamp (7) and the lower tube clamp (6) are both fitted with sealing gaskets (9); a heating chamber (2) is fixedly provided on the upper tube clamp (7); a cover plate (1) is fitted on the heating chamber (2); a plurality of crucibles (14) are provided in the heating chamber (2); an output end of the crucible (14) is connected to the inner side of the upper tube clamp (7); a partition (17) is rotatably provided in the output end of the crucible (14); the crucible (14) above the partition (17) is The crucible (14) is filled with alloy powder (8), and an eddy current coil (10) is fitted on the outer side of the crucible (14). A partition (17) between two adjacent crucibles (14) is rotatably connected via a rotating shaft (16), and a worm gear (19) is fixedly mounted on one of the rotating shafts (16). A drive motor (18) is provided on one side of the worm gear (19), and a worm (20) is fixedly provided at the output end of the drive motor (18), and the worm gear (20) is meshed with the worm gear (19).
2. A preventive reinforcement and plugging device for oil pipelines according to claim 1, Features: The crucible (14) is also provided with a preheating tube (15), one end of the preheating tube (15) is connected to the output end of the crucible (14), and the connection point is located below the partition (17), and the other end of the preheating tube (15) is connected to the pot body of the crucible (14), and the connection point is located above the alloy powder (8).
3. A preventive reinforcement and plugging device for oil pipelines according to claim 1, Features: The heating chamber (2) is filled with a heat-insulating filler (13), and the heat-insulating filler (13) and the sealing gasket (9) are both made of asbestos.
4. A preventive reinforcement and plugging device for oil pipelines according to claim 1, Features: The upper pipe clamp (7) and the lower pipe clamp (6) are both fixedly provided with lifting rings (3).
5. A preventive reinforcement and plugging device for oil pipelines according to claim 1, Features: A hinge (4) is also provided on the side where the upper tube clamp (7) and the lower tube clamp (6) are in contact with each other. The hinge (4) is divided into two groups. A limit block (12), a connecting block (21) and a limit frame (11) are provided between the two groups of hinges (4). The connecting block (21) and the limit block (12) are respectively fixedly provided on the upper tube clamp (7) and the lower tube clamp (6). One end of the limit frame (11) is hingedly connected to the connecting block (21), and the other end is mutually engaged with the limit block (12).
6. A preventive reinforcement and plugging device for oil pipelines according to claim 2, Features: The angle between the output end axis of the preheating tube (15) and the horizontal plane is a, and 0° <a<30°。 7. A preventive reinforcement and plugging device for oil pipelines according to claim 4, Features: The lifting ring (3) is respectively installed on the upper pipe clamp (7) and the lower pipe clamp (6) through threads.