Emergency plugging device for gas leakage

Abstract

The utility model relates to the technical field of gas pipeline maintenance, in particular to a gas leakage emergency plugging device which comprises a flexible cladding plate capable of cladding the outer wall of a gas pipeline, an emptying hole is formed in the center of the cladding plate, and an emptying device is fixed to the position, corresponding to the emptying hole, of the upper surface of the cladding plate through flexible connection. A first pressing plate is fixed to one end of the wrapping plate, a second pressing plate is fixed to the end, away from the first pressing plate, of the wrapping plate, at least two fixing belts are fixed to the first pressing plate, anti-loosening buckles are fixed to the positions, corresponding to the fixing belts, of the second pressing plate, and at least one sealing ring is fixed to the lower surface of the wrapping plate. The device has the beneficial effects that the cladding plate can be rapidly fixed to the outer wall of the fuel gas conveying pipeline through cooperation of the multiple fixing belts and the anti-loosening buckles to block the leakage position, installation is easy and convenient, and rapid installation and use are facilitated; gas in the pipeline can be exhausted through the emptying device, and waste caused by the fact that the gas leaks into air is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas pipeline maintenance technical field especially is involved in a kind of gas leakage emergency plugging device. BACKGROUND

[0002] Natural gas pipeline refers to the pipeline that natural gas is transported from exploitation or processing plant to city distribution center or industrial enterprise user, also called gas pipeline, and natural gas is transported by natural gas pipeline, which is the way of transporting natural gas on land. In the process of conveying gas by the existing gas pipeline, damage phenomenon may occur, such as digging and breaking, so it needs to be repaired, and before repairing the gas pipeline, it needs to be plugged to avoid gas leakage and ensure safety during repair.

[0003] The patent with application number CN202221295525.9 discloses a gas pipeline leakage seamless welding plugging device, which comprises a base and a cylinder. An exhaust port is formed on the cylinder. A groove is arranged on the bottom surface of the base. An annular air bag is arranged in the groove. A through hole is formed on the base. An inflation pipe is connected to the annular air bag. The inflation pipe extends to the outside of the base through the through hole. The bottom surface of the base is arc-shaped and consistent with the surface of the pipeline. An exhaust pipe connector is arranged at the exhaust port. A connecting thread is arranged on the inner wall of the exhaust pipe connector for screwing a plugging seal. A connecting thread is arranged on the inner wall of the through hole for screwing a plugging seal. Connecting rings are arranged on the bases on both sides of the cylinder. Although the above-mentioned patent facilitates the evacuation of excess gas in the pipeline, it is inconvenient to fix and not convenient. UTILITY MODEL CONTENT

[0004] The utility model is just to solve the above-mentioned problem and propose a kind of gas leakage emergency plugging device.

[0005] The technical solution of the utility model is as follows:

[0006] A gas leakage emergency plugging device comprises a flexible cladding plate that can be wrapped around the outer wall of a gas pipeline. An exhaust hole is formed in the center of the cladding plate. An exhaust device is fixed to the upper surface of the cladding plate at a position corresponding to the exhaust hole by a flexible connection. A first pressing plate is fixed to one end of the cladding plate. A second pressing plate is fixed to the end of the cladding plate away from the first pressing plate. At least two fixing belts are fixed to the first pressing plate. Anti-loose buckles are fixed to the second pressing plate at positions corresponding to the fixing belts. Anti-loose teeth matching the anti-loose buckles are formed on the surface of the fixing belts along the length direction. At least one sealing ring is fixed to the lower surface of the cladding plate. The exhaust hole is located in the sealing ring.

[0007] Further, a protective cover is arranged outside the exhaust device.

[0008] Further, the cladding plate comprises a rubber plate, the sealing ring is fixed on the lower surface of the rubber plate, a fiber layer is fixed on the upper surface of the rubber plate, the first pressing plate and the second pressing plate are fixed on the upper surface of the fiber layer, and a plurality of reinforcing ribs are fixed between the rubber plate and the fiber layer, and the reinforcing ribs are arranged in parallel with the first pressing plate.

[0009] Further, the emptying device comprises a connecting pipe fixedly connected with the flexible connector, an emptying joint is formed on the side wall of the connecting pipe, and an emptying valve for controlling the communication or closure of the internal passage of the emptying joint is fixed in the connecting pipe.

[0010] Further, the anti-loose buckle comprises a door-shaped frame, the fixing belt passes through the door-shaped frame, a vertically-slidable sliding column is arranged at the upper end of the door-shaped frame, a clamping block matched with the anti-loose tooth is fixed at the lower end of the sliding column, a threaded groove is formed on the outer wall of the sliding column, a limiting nut is arranged on the upper end of the sliding column through threaded connection, and a return spring is nested on the outer wall of the end of the sliding column close to the clamping block.

[0011] By adopting the technical scheme, the cladding plate can be quickly fixed on the outer wall of the gas conveying pipeline to seal the leakage position by cooperation of the plurality of fixing belts and the anti-loose buckle, the installation is simple and convenient, and the cladding plate is convenient to quickly install and use. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0013] Figure 1 is a perspective view of the present application after removing the protective cover;

[0014] Figure 2 is a second perspective view of the present application;

[0015] Figure 3 is a first sectional view of the present application;

[0016] Figure 4 is a plan view of the present application after removing the protective cover;

[0017] Figure 5 is a second sectional view of the present application.

[0018] The annotations in the attached figures are explained as follows:

[0019] 1. Covering plate; 11. Rubber sheet; 12. Fiber layer; 13. Reinforcing ribs; 2. Flexible connection; 3. Drain hole; 4. Drain device; 41. Connecting pipe; 42. Drain valve; 43. Drain connector; 5. Sealing ring; 6. First pressure plate; 7. Fixing strap; 71. Anti-loosening tooth; 8. Second pressure plate; 9. Anti-loosening buckle; 91. Portal frame; 92. Sliding column; 93. Clamping block; 94. Return spring; 95. Limit nut; 10. Protective cover. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figures 1-5 As shown, a gas leak emergency sealing device includes a flexible covering plate 1 that can be wrapped around the outer wall of a gas pipeline. A vent hole 3 is formed in the center of the covering plate 1. A venting device 4 is fixed to the upper surface of the covering plate 1 at a position corresponding to the vent hole 3 via a flexible connection 2, facilitating the discharge of gas from the gas pipeline through the venting device 4. A first pressure plate 6 is fixed to one end of the covering plate 1, and a second pressure plate 8 is fixed to the end of the covering plate 1 away from the first pressure plate 6. At least two fixing straps 7 are fixed to the first pressure plate 6, and the second pressure plate 8 is fixed at a position corresponding to the fixing straps 7. The device is fixed with anti-loosening buckles 9. The surface of the fixing band 7 is formed with several anti-loosening teeth 71 that match the anti-loosening buckles 9 along the length direction. After the fixing band 7 is inserted into the anti-loosening buckles 9, it cannot be pulled out in the opposite direction without external force. This means that the fixing band 7 can only be used to tighten it continuously, which avoids the pressure inside the pipeline being too high during fixing, making it difficult to fix quickly and reliably. At the same time, it facilitates a single person to quickly and completely seal the gas pipeline in an emergency. At least one sealing ring 5 is fixed on the lower surface of the covering plate 1. The vent hole 3 is located inside the sealing ring 5. The sealing ring 5 can improve the sealing effect.

[0022] In this embodiment, a protective cover 10 is also included to cover the outside of the venting device 4. The protective cover 10 can be installed by fastening it to the outside of the venting device 4 or by threaded connection. The protective cover 10 can protect the venting device 4 and prevent it from being damaged by bumps.

[0023] In the embodiment, the cladding plate 1 comprises a rubber plate 11, the sealing ring 5 is fixed on the lower surface of the rubber plate 11, the upper surface of the rubber plate 11 is fixedly glued with a fiber layer 12, the fiber layer 12 is made of nylon fiber, the first pressing plate 6 and the second pressing plate 8 are fixed on the upper surface of the fiber layer 12, a plurality of reinforcing ribs 13 are fixed between the rubber plate 11 and the fiber layer 12, the reinforcing ribs 13 are arranged in parallel with the first pressing plate 6, and the reinforcing ribs 13 can ensure that the cladding plate 1 can be fully attached to the outer wall of the gas pipeline during fixing, and is not easy to be warped and deformed to affect the sealing effect.

[0024] In the embodiment, the emptying device 4 comprises a connecting pipe 41 fixedly connected with the flexible connection 2, the connecting pipe 41 is formed with an emptying joint 43 on the side wall, the connecting pipe 41 is fixedly provided with an emptying valve 42 for controlling the communication or closure of the internal passage of the emptying joint 43, the opening and closing of the emptying valve 42 can control whether the gas in the pipeline is discharged through the emptying joint 43, and the gas in the gas pipeline can be discharged after the pipeline is connected with the gas storage container.

[0025] In the embodiment, the anti-loosening buckle 9 comprises a door-shaped frame 91, the fixing belt 7 passes through the door-shaped frame 91, the door-shaped frame 91 is provided with a sliding column 92 which can slide vertically at the upper end, the sliding column 92 is fixedly provided with a clamping block 93 which is matched with the anti-loosening tooth 71 at the lower end, the sliding column 92 is formed with a threaded groove on the outer wall, the sliding column 92 is provided with a limiting nut 95 which is connected and arranged on the upper end through screw threads, the outer wall of the end of the sliding column 92 close to the clamping block 93 is nested with a reset spring 94, the clamping block 94 can be pushed to be close to the fixing belt 7 under the action of the reset spring 94, and the fixing belt 7 is prevented from being pulled out reversely, and the height of the clamping block 93 can be adjusted by adjusting the limiting nut 95, so that the fixing belt 7 is convenient to disassemble.

[0026] The working principle of the utility model is as follows: when the gas conveying pipeline leaks, the soil around the gas pipeline is cleaned, the soil on the surface of the gas pipeline is cleaned, then the device is covered on the surface of the gas pipeline, the emptying hole 3 is aligned with the gas leakage position, the end portions of the plurality of fixing belts 7 are inserted into the anti-loosening buckle 9 after being wound around the gas conveying pipeline in sequence, the cladding plate 1 can be firmly cladded on the surface of the pipeline by continuously pulling the end portions of the fixing belts 7, so that the temporary sealing of the leakage point is realized, the hose can be arranged on the emptying joint 43, the excess gas in the gas conveying pipeline is discharged into the designated container, the gas is prevented from leaking into the air, the safety during maintenance is improved while the gas waste is reduced.

[0027] The components not described in detail in the present application are prior art.

[0028] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A gas leak emergency plugging device, characterized in that: The utility model provides an exhaust device for gas pipeline, including the flexible cladding board (1) that can be wrapped on the outer wall of gas pipeline, the central moulding of the cladding board (1) has exhaust hole (3), the upper surface of the cladding board (1) is fixed with exhaust device (4) through the soft connection (2) with the position of exhaust hole (3) corresponds, one end of the cladding board (1) is fixed with first pressing plate (6), the second pressing plate (8) of the cladding board (1) is fixed with the first pressing plate (6) one end away, the first pressing plate (6) is fixed with at least two fixed bands (7), the second pressing plate (8) is fixed with anti-loose buckle (9) with the position of fixed band (7) corresponds, the surface of fixed band (7) is moulded with several anti-loose teeth (71) with the anti-loose buckle (9) matching along the length direction, the lower surface of the cladding board (1) is fixed with at least one sealing ring (5), and the exhaust hole (3) is located in sealing ring (5).

2. The emergency gas leak plugging device according to claim 1, wherein: It also includes a protective cover (10) covering the outside of the exhaust device (4).

3. The emergency gas leak plugging device according to claim 1, wherein: The cladding board (1) includes a rubber plate (11), the sealing ring (5) is fixed on the lower surface of the rubber plate (11), a fiber layer (12) is fixed on the upper surface of the rubber plate (11), the first pressing plate (6) and the second pressing plate (8) are fixed on the upper surface of the fiber layer (12), and a plurality of reinforcing ribs (13) are fixed between the rubber plate (11) and the fiber layer (12). The reinforcing ribs (13) are arranged in parallel with the first pressing plate (6).

4. The emergency gas leak plugging device of claim 1, wherein: The exhaust device (4) includes a connecting pipe (41) fixedly connected with the soft connection (2), an exhaust joint (43) is formed on the side wall of the connecting pipe (41), and an exhaust valve (42) is fixed in the connecting pipe (41) to control the communication or closure of the internal passage of the exhaust joint (43).

5. The emergency gas leak plugging device of claim 1, wherein: The anti-loose buckle (9) includes a door-shaped frame (91), the fixed band (7) passes through the door-shaped frame (91), a sliding column (92) vertically slidable is arranged at the upper end of the door-shaped frame (91), a clamping block (93) matched with the anti-loose tooth (71) is fixed at the lower end of the sliding column (92), a threaded groove is formed on the outer wall of the sliding column (92), a limiting nut (95) is installed on the upper end of the sliding column (92) through screw connection, and a return spring (94) is nested on the outer wall of one end of the sliding column (92) close to the clamping block (93).

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