Online leakage repairing device for gas pipeline

Abstract

The utility model relates to the field of gas pipelines, in particular to a gas pipeline on-line leak repairing device which comprises a leak repairing structure arranged on the outer wall of a pipeline, the leak repairing structure comprises a fixing plate and positioning protrusions welded to the outer wall of the fixing plate at equal intervals, and an extrusion frame and sealant are arranged on the outer wall of one side of the fixing plate. Fixing grooves are formed in the two ends of the outer wall of one side of the fixing plate correspondingly, and metal hoops are slidably connected into the fixing grooves. According to the utility model, a fire operation condition is created without stopping coal gas and cleaning a coal gas pipeline, the leaked coal gas pipeline can be processed on line, the stable production operation of the coal gas pipeline and the previous and next working procedures is not influenced, and meanwhile, the overhaul operation period is greatly shortened; the fixing plate is matched with the extrusion frame to extrude the sealant, the gap between the fixing plate and the edge of the extrusion frame is filled with the sealing clamp, the sealant is conveniently positioned and fixed, the sealing performance is improved, and online leakage repairing is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of gas pipeline technology, and in particular to an online gas pipeline leak repair device. Background Technology

[0002] Coal chemical industry refers to the process of using coal as raw material and chemically processing it into gaseous, liquid, and solid fuels and chemicals. It mainly includes coal gasification, liquefaction, dry distillation, as well as tar processing and calcium carbide acetylene chemical processing. The chemical structure of the organic matter in coal is a large molecular structure with aromatic-dominated fused rings as the core unit, connected by bridging bonds, and containing various functional groups. Through thermal and catalytic processing, coal can be converted into various fuels and chemical products.

[0003] Coal chemical enterprises cannot operate without gas equipment and facilities, with gas pipelines being the most common. When gas pipelines crack or leak, the most common method used in China is to shut down the pipeline, clean it, and then perform hot work to replace or weld the pipeline to fix the leak. The whole process is time-consuming and causes significant losses. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned problems and shortcomings by proposing an online gas pipeline leak repair device: it can handle leaking gas pipelines online without shutting down the gas supply or cleaning the gas pipeline to create conditions for hot work, without affecting its own and the stable operation of upstream and downstream processes, while also greatly shortening the maintenance cycle and reducing losses.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An online leak repair device for gas pipelines includes a leak repair structure installed on the outer wall of the pipeline. The leak repair structure includes a fixing plate and positioning protrusions welded at equal intervals to the outer wall of the fixing plate. An extrusion frame and sealant are respectively provided on one side of the outer wall of the fixing plate. Fixing grooves are provided at both ends of one side of the outer wall of the fixing plate, and metal hoop rings are slidably connected in the fixing grooves.

[0007] There is no need to shut down the gas supply or clean the gas pipeline to create conditions for hot work. Leaking gas pipelines can be handled online without affecting the stable operation of the gas pipeline itself and the upstream and downstream processes. At the same time, the maintenance cycle is greatly shortened.

[0008] Preferably, a pressure relief groove is provided at the center of one side of the outer wall of the fixing plate, and pressure relief holes are provided at the center of the extrusion frame and the sealant.

[0009] Preferably, a pressure relief pipe is welded to one side of the fixing plate at the center of the pressure relief groove, and a valve is installed at the other end of the pressure relief pipe.

[0010] Preferably, the fixing plate has a threaded hole at the center of the positioning protrusion, and a positioning screw is threaded into each threaded hole, with the other end of the positioning screw contacting the outer wall of the sealant.

[0011] Preferably, the outer wall of the sealant is respectively attached to the outer wall of the extrusion frame and the outer wall of one side of the fixing plate.

[0012] Preferably, the outer wall of the metal hoop is fixed to the outer wall of the pipe, and the metal hoop is slidably connected in the fixing groove of the fixing plate;

[0013] The fixing plate, together with the extrusion frame, compresses the sealant. The sealing clip fills the gap between the fixing plate and the edge of the extrusion frame, which facilitates the positioning and fixing of the sealant, improves the sealing performance, and makes it easy to repair leaks online.

[0014] Preferably, the fixing plate, the extrusion frame, and the sealant are all arc-shaped structures, and the fixing plate and the extrusion frame are respectively attached to the outer wall of the pipe.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. No need to shut down the gas supply or clean the gas pipeline to create conditions for hot work. It can handle leaking gas pipelines online without affecting its own and the stable operation of upstream and downstream processes, and at the same time greatly shortens the maintenance cycle.

[0017] 2. The fixing plate and the extrusion frame compress the sealant. The sealing clip fills the gap between the fixing plate and the edge of the extrusion frame, which facilitates the positioning and fixing of the sealant, improves the sealing performance, and facilitates online leak repair. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of one side of the fixing plate structure of an online gas pipeline leak repair device proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the unfolded structure of the fixing plate of the online gas pipeline leak repair device proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the overall structure of an online leak repair device for gas pipelines proposed in this utility model;

[0021] Figure 4 This is a schematic diagram of the installation method of an online gas pipeline leak repair device proposed in this utility model.

[0022] In the diagram: 1. Pipe, 2. Leak repair structure, 3. Fixing plate, 4. Pressure relief groove, 5. Pressure relief pipe, 6. Valve, 7. Extrusion frame, 8. Sealant, 9. Pressure relief hole, 10. Positioning protrusion, 11. Threaded hole, 12. Positioning screw, 13. Fixing groove, 14. Metal hoop. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Example:

[0025] Reference Figure 1-4 An online leak repair device for gas pipelines includes a leak repair structure 2 installed on the outer wall of the pipeline 1. The leak repair structure 2 includes a fixing plate 3 and positioning protrusions 10 welded at equal intervals to the outer wall of the fixing plate 3. An extrusion frame 7 and a sealant 8 are respectively provided on one side of the outer wall of the fixing plate 3. Fixing grooves 13 are provided at both ends of one side of the outer wall of the fixing plate 3, and metal hoop rings 14 are slidably connected in the fixing grooves 13. One end of the positioning screw 12 contacts the outer wall of the outer end of the sealant 8 to prevent the sealant 8 from deforming over time and causing gas leakage. This facilitates the positioning and fixing of the sealant 8, improves the sealing performance, and facilitates online leak repair.

[0026] A pressure relief groove 4 is provided at the center of one side of the outer wall of the fixing plate 3, and pressure relief holes 9 are provided at the center of the extrusion frame 7 and the sealant 8.

[0027] A pressure relief pipe 5 is welded to one side of the fixing plate 3 at the center of the pressure relief groove 4, and a valve 6 is installed at the other end of the pressure relief pipe 5. After the fixing plate 3 seals the leakage point, the valve 6 is opened to allow the gas to be discharged from the pressure relief groove 4 and the pressure relief pipe 5, which facilitates pressure relief during the installation process. Closing the valve 6 can complete the online leak repair, which is convenient for use.

[0028] The fixing plate 3 has a threaded hole 11 at the center of the positioning protrusion 10, and a positioning screw 12 is threaded into each threaded hole 11. The other end of the positioning screw 12 contacts the outer wall of the sealant 8. The positioning protrusions 10 distributed at equal intervals on the outer wall of the fixing plate 3 are threaded with positioning screws 12. The positioning screws 12 contact the outer wall of the sealant 8, confining the sealant 8 to the outer wall of the pipe 1, and preventing the sealant 8 from deforming and leaking.

[0029] The outer wall of the sealant 8 is attached to the outer wall of the extrusion frame 7 and the outer wall of one side of the fixing plate 3.

[0030] The outer wall of the metal hoop 14 is fixed to the outer wall of the pipe 1, and the metal hoop 14 is slidably connected in the fixing groove 13 of the fixing plate 3. The tightening of the metal hoop 14 causes the sealant 8 to diffuse under pressure. The sealant 8 fills the gap between the pipe 1 and the fixing plate 3 to seal the leak, which facilitates the sealing of the leak and avoids open flame.

[0031] The fixing plate 3, the extrusion frame 7, and the sealant 8 are all arc-shaped structures. The fixing plate 3 and the extrusion frame 7 are respectively attached to the outer wall of the pipe 1. After the metal hoop 14 is wrapped around the outer wall of the pipe 1, the fixing plate 3, the extrusion frame 7, and the sealant 8 are fixed to the outer wall of the pipe 1. The fixing groove 13 on the fixing plate 3 facilitates the positioning and installation of the metal hoop 14, making it easy to install and fix.

[0032] Working principle: In use, first clean the outer wall of the leaking pipe 1 to remove any loose impurities. Apply sealant 8 to the outer wall of pipe 1 to cover the leak point. Press the extrusion frame 7 onto the outer wall of the sealant 8. Finally, press the fixing plate 3 onto the outer wall of the extrusion frame 7. Wrap the metal hoop 14 around the outer wall of pipe 1. The metal hoop 14 is connected and tightened at the fixing groove 13 of the fixing plate 3. As the metal hoop 14 tightens, the fixing plate 3, together with the extrusion frame 7, extrudes the sealant 8. The sealant 8 fills the gap between the fixing plate 3 and the edge of the extrusion frame 7, sealing the area between the fixing plate 3 and pipe 1. After opening valve 6, the leaked gas is discharged from the pressure relief groove 4 and pressure relief pipe 5. Thread the positioning screw 12 into the threaded hole 11 in the positioning protrusion 10. One end of the positioning screw 12 contacts the outer wall of the sealant 8 to prevent the sealant 8 from deforming over time and causing leakage. This facilitates positioning and fixing of the sealant 8, improves sealing performance, and facilitates online leak repair.

[0033] The exemplary embodiments of the present invention have been described in detail herein with reference to examples. However, those skilled in the art will understand that various modifications and alterations can be made to the specific embodiments described above without departing from the spirit of the present invention, and various combinations can be made to the various technical features and structures proposed in the present invention without exceeding the protection scope of the present invention, which is determined by the appended claims. The foregoing description of specific exemplary embodiments of the present invention is not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical applications, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. An online leak repair device for gas pipelines, comprising a leak repair structure (2) disposed on the outer wall of the pipeline (1), characterized in that, The leak repair structure (2) includes a fixing plate (3) and positioning protrusions (10) welded at equal intervals to the outer wall of the fixing plate (3). The outer wall of one side of the fixing plate (3) is provided with an extrusion frame (7) and sealant (8). Fixing grooves (13) are provided at both ends of the outer wall of one side of the fixing plate (3), and metal hoop rings (14) are slidably connected in the fixing grooves (13).

2. The online leak repair device for gas pipelines according to claim 1, characterized in that, A pressure relief groove (4) is provided at the center of one side of the outer wall of the fixing plate (3), and a pressure relief hole (9) is provided at the center of the extrusion frame (7) and the sealant (8).

3. The online leak repair device for gas pipelines according to claim 1, characterized in that, A pressure relief pipe (5) is welded to one side of the fixed plate (3) at the center of the pressure relief groove (4), and a valve (6) is installed at the other end of the pressure relief pipe (5).

4. The online leak repair device for gas pipelines according to claim 1, characterized in that, The fixing plate (3) has a threaded hole (11) at the center of the positioning protrusion (10), and a positioning screw (12) is threaded into each threaded hole (11). The other end of the positioning screw (12) contacts the outer wall of the sealant (8).

5. The online leak repair device for gas pipelines according to claim 1, characterized in that, The outer wall of the sealant (8) is respectively attached to the outer wall of the extrusion frame (7) and the outer wall of the fixing plate (3) on one side.

6. The online leak repair device for gas pipelines according to claim 1, characterized in that, The outer wall of the metal hoop (14) is fixed to the outer wall of the pipe (1), and the metal hoop (14) is slidably connected in the fixing groove (13) of the fixing plate (3).

7. The online leak repair device for gas pipelines according to claim 1, characterized in that, The fixing plate (3), the extrusion frame (7) and the sealant (8) are all arc-shaped structures, and the fixing plate (3) and the extrusion frame (7) are respectively attached to the outer wall of the pipe (1).

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