Pipeline under-pressure plugging device

Abstract

The invention provides a pipeline under-pressure plugging device, relates to the technical field of pipeline plugging, and aims to solve the technical problem that in the prior art, after dangerous chemicals in a pipeline leak, repair and plugging are not easy to achieve in time under the condition that the safety of maintenance personnel is guaranteed. The device comprises a propelling device, a fixing device, a sliding support, a supporting rod and a plugging device; the fixing devices are oppositely arranged on the two sides of the leakage position of the pipe body, the supporting rod is fixed between the fixing devices and located over the leakage position of the pipe body, the sliding support is slidably connected to the supporting rod, the propelling device comprises a movable propelling set and a leaking stoppage propelling set, the movable propelling set is fixedly connected with the fixing devices, and the propelling end of the movable propelling set abuts against the sliding support. And the plugging propelling set is connected with the sliding support, and the propelling end of the plugging propelling set is connected with a plugging device.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline plugging, and in particular to a pipeline pressure plugging device. Background Art

[0002] Hazardous chemicals are transported through pipelines during production, transportation and storage. Pipelines for transporting hazardous chemicals may be perforated and cracked due to corrosion of the pipe wall after long-term use, causing fluid or gas in the pipeline to leak out, resulting in the loss of a large amount of hazardous chemicals and endangering the surrounding environment and personnel safety. Therefore, after a hazardous chemical leak occurs, it is necessary to repair and plug the leak in a timely manner while ensuring the safety of maintenance personnel to reduce losses and avoid harm.

[0003] Most of the existing pipeline repair devices use fastening plugging tools, that is, they use fixing clamps, steel belt bundling or wire rope tightening to wrap around the outside of the pipeline where the leak occurs, generating a reaction so that the steel belt bundling pressure applied to the leaking part is greater than the pressure of the medium itself overflowing, thereby achieving a final balanced plugging method. In the current pressure pipeline leakage plugging process, it is not easy to repair and plug the leak in time while ensuring the safety of maintenance personnel after the hazardous chemicals in the pipeline leak.

[0004] The applicant has found that the prior art has at least the following technical problems:

[0005] When hazardous chemicals leak in a pipeline, it is not easy to repair the leak in a timely manner while ensuring the safety of maintenance personnel. Summary of the invention

[0006] The purpose of the present invention is to provide a pipeline pressure plugging device to solve the technical problem in the prior art that it is not easy to repair and plug the leak in time while ensuring the safety of maintenance personnel after the leakage of hazardous chemicals in the pipeline. The preferred technical solutions among the many technical solutions provided by the present invention can produce many technical effects as described below.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] The present invention provides a pipeline pressure plugging device, comprising a propulsion device, a fixing device, a sliding support, a support rod and a plugging device, wherein:

[0009] The fixing devices are relatively arranged on both sides of the leakage point of the pipe body, the support rod is fixed between the fixing devices and is located directly above the leakage point of the pipe body, the sliding support is slidably connected to the support rod, and the propulsion device includes a mobile propulsion group and a leak-plugging propulsion group. The mobile propulsion group is fixedly connected to the fixing device and the propulsion end of the mobile propulsion group is abutted against the sliding support. The leak-plugging propulsion group is connected to the sliding support and a plugger is connected to the propulsion end of the leak-plugging propulsion group.

[0010] Preferably, it also includes a fixed plug-in, the sliding support is provided with a through hole, the occluder is provided with a fixed hole, and the fixed plug-in can pass through the through hole of the sliding support and be fixedly connected with the fixed hole.

[0011] Preferably, the through hole and the fixing hole are arranged around the propulsion end of the leak-plugging propulsion group.

[0012] Preferably, the propulsion device comprises a hydraulic oil pump and a jack, and there are multiple groups of jacks, and the multiple groups of jacks are respectively connected to the fixing device and the sliding support.

[0013] Preferably, the fixing device comprises a fixing seat and a fixing frame, the fixing seat is in close contact with the outer surface of the tube body, and the fixing seat 3 is fixed to the tube body through the fixing frame.

[0014] Preferably, the contact surface between the fixing seat and the tube body is arc-shaped.

[0015] Preferably, the fixing frame is a clamp or a flexible belt.

[0016] Preferably, the contact surface between the occluder and the tube body is arc-shaped.

[0017] The present invention provides a method for sealing a pipeline using the pipeline pressure sealing device, comprising the following steps:

[0018] Step A, move the fixing device to both sides of the leak and fix the fixing device to the pipe body;

[0019] Step B, the support rod is connected to the sliding support and then erected parallel to the top of the tube body;

[0020] Step C, the moving propulsion group pushes the sliding support to move to the position directly above the leaking part of the pipe body;

[0021] Step D, the fixed plug-in is inserted into the sliding support and connected to the occluder;

[0022] Step E: The plugging pushing group pushes the plugging device to press tightly against the leaking part of the pipe body until no transported material flows out of the leaking part of the pipe body.

[0023] The present invention provides a pipeline pressure plugging device. When a pressure vessel or pipeline leaks, the fixing devices are arranged on both sides of the leak, and the support rod, the sliding support and the plugging device are arranged above the leak through the fixing devices. The moving propulsion group is started to move the sliding support along the length direction of the support rod to just above the leak, and the plugging propulsion group is started to move the plugging device toward the leak and fit the plugging device on the leaking part of the pipeline to establish a new sealing structure. When using this device to plug the leak, the personnel keep a distance from the leak point at all times during the operation, thereby achieving the purpose of safe and rapid plugging. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a structural schematic diagram of an embodiment of a pipeline pressure plugging device of the present invention.

[0026] In the figure: 1. hydraulic oil pump; 2. jack; 3. fixed seat; 4. sliding support; 5. support rod; 6. fixed frame; 7. plugger; 8. fixing hole; 9. pipe body. DETAILED DESCRIPTION

[0027] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0028] The specific implementation of the present invention is described in detail below with reference to the accompanying drawings. In each of the accompanying drawings, the same reference numerals represent the same or corresponding technical features. Each of the accompanying drawings is only a schematic diagram and is not necessarily drawn according to the actual scale.

[0029] A schematic structural diagram of a pipeline pressure plugging device provided by the present invention is as follows: Figure 1 As shown, it includes a propulsion device, a fixing device, a sliding support 4, a support rod 5 and a plugging device 7, wherein the fixing devices are relatively arranged on both sides of the leakage of the tube body 9, the support rod 5 is fixed between the fixing devices and is located directly above the leakage of the tube body 9, the sliding support 4 is slidably connected to the support rod 5, the propulsion device includes a mobile propulsion group and a leak-plugging propulsion group, the mobile propulsion group is fixedly connected to the fixing device and the propulsion end of the mobile propulsion group is abutted against the sliding support 4, the leak-plugging propulsion group is connected to the sliding support 4 and the propulsion end of the leak-plugging propulsion group is connected with the plugging device 7.

[0030] When a pressure vessel or pipeline leaks, the fixing device is fixed on both sides of the leak, and the sliding support 4, the support rod 5 and the plugging device 7 are set above the leak through the fixing device. The moving propulsion group is started, and the propulsion end of the moving propulsion group pushes forward to move the sliding support 4 along the length direction of the support rod 5 to just above the leak. The plugging propulsion group is started, and the propulsion end of the plugging propulsion group pushes forward to move the plugging device 7 toward the leak and fit the plugging device 7 tightly on the leaking part of the pipeline to establish a new sealing structure. When using this device to plug leaks, the personnel always keep a distance from the leak point during operation, thereby achieving the purpose of safe and rapid plugging.

[0031] As an optional implementation, it also includes a fixed plug-in, the sliding support 4 is provided with a through hole, the occluder 7 is provided with a fixed hole 8, and the fixed plug-in can pass through the through hole of the sliding support 4 and be fixedly connected to the fixed hole 8.

[0032] In the present embodiment, during the process of the plugging propulsion group pushing forward the propulsion end to move the plugger 7 toward the leaking part and tightly fitting the plugger 7 to the leaking part of the pipeline, in order to ensure that the plugger 7 is accurately aligned with the leaking part of the pipeline and prevent the leaked material from impacting the plugger 7 and causing the plugger 7 to shift, since the position of the sliding support 4 is fixed, a fixed plug-in can be passed through the through hole of the sliding support 4 and fixedly connected to the fixed hole 8 to limit the position of the plugger 7.

[0033] Furthermore, the fixing plug-in may be a long bolt or a stud, and the fixing hole 8 is a threaded hole. After the long bolt passes through the through hole of the sliding support 4, it is threadedly connected with the fixing hole 8 to achieve the fixing purpose.

[0034] As an optional implementation, the through hole and the fixing hole 8 are arranged around the propulsion end of the plugging propulsion group.

[0035] See also Figure 1 The sliding support 4 and the occluder 7 are square, and the through holes and the fixing holes 8 are respectively located at the four corners of the sliding support 4 and the occluder 7.

[0036] As an optional implementation, the propulsion device includes a hydraulic oil pump 1 and a jack 2, and the jack 2 has multiple groups, and the multiple groups of jacks 2 are respectively connected to the fixing device and the sliding support 4.

[0037] In this embodiment, see Figure 1 The propulsion device consists of a hydraulic oil pump 1 and a jack 2. Pressing the hydraulic oil pump 1 causes the jack 2 to lift up. One of the jacks 2 is fixedly connected to the fixed seat 3, and the output end of the jack 2 faces the sliding support 4 and abuts against the sliding support 4. The other jack 2 is fixedly connected to the sliding support 4 and the output end of the jack 2 is movably connected to the plugger 7.

[0038] Furthermore, the output end of the jack 2 facing the sliding support 4 can be connected to a strong magnetic material, and the sliding support 4 can be made of metal material, and the magnetic effect of the strong magnetic material makes the output end of the jack 2 abut against the sliding support 4. The sliding support 4 is controlled to move forward and backward by magnetic force.

[0039] Furthermore, the side wall of the output end of the jack 2 is connected to a strong magnetic material, and the strong magnetic material is arranged circumferentially along the side wall of the output end of the jack 2 to prevent the jack 2 from applying force to destroy the strong magnetism.

[0040] As another embodiment, both fixing seats 3 can be connected to jacks 2. Since the jacks 2 are arranged relatively to each other, both left and right sides of the sliding support 4 are connected to jacks 2. Controlling the output of the two jacks 2 can control the moving position of the sliding support 4.

[0041] Furthermore, the output end of the jack 2 connected to the occluder 7 is connected to the occluder 7 via a threaded connector.

[0042] As an optional implementation, the fixing device includes a fixing seat 3 and a fixing frame 6 . The fixing seat 3 is in close contact with the outer surface of the tube body 9 , and the fixing seat 3 is fixed to the tube body 9 via the fixing frame 6 .

[0043] As an optional implementation, the contact surface between the fixing seat 3 and the tube body 9 is arc-shaped to ensure that the fixing seat 3 and the tube body 9 fit tightly.

[0044] As an optional embodiment, the fixing frame 6 is a clamp or a flexible belt.

[0045] As an optional implementation, the contact surface between the occluder 7 and the tubular body 9 is arc-shaped to ensure that the occluder 7 and the tubular body 9 fit closely.

[0046] Better yet, a corrosion-resistant rubber layer may be added to the plugger 7 toward the leaking location.

[0047] The present invention provides a method for sealing a pipeline using a pipeline pressure sealing device, comprising the following steps:

[0048] Step A, move the fixing device to both sides of the leak and fix the fixing device to the pipe body;

[0049] Step B, the support rod is connected to the sliding support and then erected parallel to the top of the tube body;

[0050] Step C, the moving propulsion group pushes the sliding support to move to the position directly above the leaking part of the pipe body;

[0051] Step D, the fixed plug-in is inserted into the sliding support and connected to the occluder;

[0052] Step E: The plugging pushing group pushes the plugging device to press tightly against the leaking part of the pipe body until no transported material flows out of the leaking part of the pipe body.

[0053] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A pipeline pressure plugging device, characterized in that: It comprises a propulsion device, a fixing device, a sliding support (4), a support rod (5) and an occluder (7), wherein: The fixing devices are relatively arranged on both sides of the leakage point of the tube body (9); the support rod (5) is fixed between the fixing devices and is located directly above the leakage point of the tube body (9); the sliding support (4) is slidably connected to the support rod (5); the propulsion device comprises a mobile propulsion group and a leak-blocking propulsion group; the mobile propulsion group is fixedly connected to the fixing devices and the propulsion end of the mobile propulsion group abuts against the sliding support (4); the leak-blocking propulsion group is connected to the sliding support (4) and the propulsion end of the leak-blocking propulsion group is connected to the plugging device (7).

2. The pipeline pressure plugging device according to claim 1 is characterized in that: It also comprises a fixed plug-in, the sliding support (4) is provided with a through hole, the plugging device (7) is provided with a fixed hole (8), and the fixed plug-in can pass through the through hole of the sliding support (4) and be fixedly connected to the fixed hole (8).

3. The pipeline pressure plugging device according to claim 2 is characterized in that: The through hole and the fixing hole (8) are arranged around the propulsion end of the leak plugging propulsion group.

4. The pipeline pressure plugging device according to claim 1 is characterized in that: The propulsion device comprises a hydraulic oil pump (1) and a jack (2). The jack (2) comprises multiple groups, and the multiple groups of the jack (2) are respectively connected to the fixing device and the sliding support (4).

5. The pipeline pressure plugging device according to claim 1 is characterized in that: The fixing device comprises a fixing seat (3) and a fixing frame (6); the fixing seat (3) is in close contact with the outer surface of the tube body (9); and the fixing seat (3) is fixed to the tube body (9) via the fixing frame (6).

6. The pipeline pressure plugging device according to claim 5 is characterized in that: The contact surface between the fixing seat (3) and the tube body (9) is arc-shaped.

7. The pipeline pressure plugging device according to claim 5 is characterized in that: The fixing frame (6) is a clamp or a flexible belt.

8. The pipeline pressure plugging device according to claim 1 is characterized in that: The contact surface between the occluder (7) and the tube body (9) is arc-shaped.

9. A method for sealing a pipeline using the pipeline pressure sealing device as claimed in any one of claims 1 to 8, characterized in that: The steps include: Step A, move the fixing device to both sides of the leak and fix the fixing device to the pipe body; Step B, the support rod is connected to the sliding support and then erected parallel to the top of the tube body; Step C, the moving propulsion group pushes the sliding support to move to the position directly above the leaking part of the pipe body; Step D, the fixed plug-in is inserted into the sliding support and connected to the occluder; Step E: The plugging pushing group pushes the plugging device to press tightly against the leaking part of the pipe body until no transported material flows out of the leaking part of the pipe body.

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