Explosion-proof type chemical engineering underground sewage pipeline leaking stoppage emergency device

Abstract

The utility model discloses an explosion-proof chemical engineering underground sewage pipeline leaking stoppage emergency device, which relates to the technical field of pipeline leaking stoppage and comprises a leaking stoppage air bag and a support structure, the leaking stoppage air bag is connected with an air inlet pipe, and a pressure gauge is arranged on the air inlet pipe; the supporting structure comprises a plugging plate, a hole allowing the air inlet pipe to penetrate through is formed in the plugging plate, a supporting plate is arranged at the opposite position of the plugging plate, and a telescopic structure is arranged between the plugging plate and the supporting plate. The telescopic structure comprises a supporting sleeve and a screw, the screw is sleeved with a limiting nut, a through hole is formed in the limiting nut, a screw in threaded connection is arranged in the through hole, and the end of the screw is clamped into the groove after the screw is screwed into the through hole. The utility model has the beneficial effects that the leaking stoppage rate and effect of the leaking stoppage air bag are improved, the supporting structure improves the explosive-proof effect, the working efficiency is improved, and the injury of explosion to operators is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline leakage blocking, in particular to a flameproof chemical underground sewage pipeline leakage blocking emergency device. Background Art

[0002] After being put into production, underground chemical wastewater pipelines often leak due to long-term corrosion from fluids or improper anti-corrosion measures, necessitating repair of damaged pipelines. Chemical companies often experience internal scaling and the transported fluids contain flammable and explosive substances. These flammable and explosive media, such as methane and hydrogen, can easily cause fires or explosions during hot work operations, making repairing leaked pipelines difficult and risky.

[0003] Repairing a leaking pipeline requires plugging the pipe. For example, prior art patent publication CN220016565U discloses a pipe-opening plugging device for in-line flange inspection. The device features an airbag placed inside the pipe, which is filled with high-pressure gas from a high-pressure gas cylinder to seal the pipe opening. After use, the gas is discharged through the inflator and deflator valves. However, this design presents a problem: chemical pipelines contain flammable and explosive substances, which can easily cause explosions during inspection, and the airbag lacks flameproofing capabilities. Utility Model Content

[0004] The utility model aims to solve the above-mentioned problems existing in the prior art and provides an explosion-proof chemical underground sewage pipeline leak-proof emergency device. The utility model uses an air pump to inflate the leak-proof airbag so that the leak-proof airbag expands rapidly and fits tightly against the inner wall of the pipeline, blocking the water inlet pipe opening, and a supporting structure is provided. When an explosion occurs during maintenance, the leak-proof airbag is prevented from exploding and popping out, thereby ensuring that the maintenance of the leaking pipeline is effectively controlled and production safety is ensured. The utility model has a simple structure and is easy to operate.

[0005] The technical solution of the utility model for solving the above-mentioned technical problems is as follows: a flameproof chemical underground sewage pipe leak-plugging emergency device, comprising a leak-plugging airbag, which is connected to an air inlet pipe, and a pressure gauge is provided on the air inlet pipe; it also comprises a supporting structure, which comprises a sealing plate for blocking the water inlet pipe orifice, the sealing plate being provided with a hole for the air inlet pipe to pass through, a support plate being provided at a relative position of the sealing plate, a telescopic structure being provided between the sealing plate and the support plate, which is used to adjust the length of the telescopic structure so that it is in contact between the sealing plate and the support plate; the leak-plugging airbag and the telescopic structure are respectively located on both sides of the sealing plate.

[0006] Furthermore, the telescopic structure includes a support sleeve and a screw. The support sleeve is fixedly connected to the support plate. One end of the screw is embedded in the support sleeve and threadedly connected to the support sleeve. The screw can be screwed in or out of the support sleeve.

[0007] Furthermore, the screw is provided with a plurality of grooves having the same direction as the axial direction of the screw.

[0008] Furthermore, it also includes a limiting nut, which is sleeved on the screw and threadedly connected to the screw.

[0009] Furthermore, a through hole is provided on the limiting nut, the direction of the through hole is perpendicular to the axial direction of the screw, and a screw threadedly connected to the limiting nut is provided in the through hole. After the screw is screwed into the through hole, the end of the screw is stuck in the groove.

[0010] Furthermore, the leak-stopping airbag is made of nitrile rubber.

[0011] Furthermore, the air inlet pipe is connected to an air pump.

[0012] The beneficial effects of the utility model are as follows: the utility model uses an air pump to inflate the leak-blocking airbag so that it quickly expands and fits tightly against the inner wall of the pipe, blocking the water inlet pipe orifice, and a supporting structure is provided to block the water inlet pipe orifice. When an explosion occurs during maintenance, the leak-blocking airbag is prevented from exploding and popping out, thereby ensuring that the repair of the leaking pipe is effectively controlled and production safety is ensured. The utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural diagram of the leak-stopping emergency device of the utility model;

[0014] Figure 2 This is a structural diagram of the leak-stopping emergency device and the pipeline when the utility model is in use;

[0015] Figure 3 This is a schematic diagram of the limiting structure of the utility model;

[0016] In the figure: 1. Air bag, 2. Air inlet pipe, 3. Pressure gauge, 4. Sealing plate, 5. Support plate, 6. Support sleeve, 7. Screw, 8. Groove, 9. Limit nut, 10. Through hole, 11. Screw, 12. Air pump, 13. Water inlet pipe, 14. Drain pipe, 15. Manhole cover. DETAILED DESCRIPTION

[0017] The principles and features of the present invention are described below. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0018] like Figure 1-3As shown, the present embodiment is an explosion-proof chemical underground sewage pipe leak-proof emergency device, which is used for underground water inlet pipe maintenance, including a leak-proof airbag and a support structure, the leak-proof airbag 1 is connected to the air inlet pipe 2, and the air inlet pipe 2 is provided with a pressure gauge 3; the support structure includes a sealing plate 4 for sealing the pipe opening of the water inlet pipe 13, and the sealing plate 4 is provided with a hole for the air inlet pipe 2 to pass through, and a support plate 5 is provided at the relative position of the sealing plate 4, and a telescopic structure is provided between the sealing plate 4 and the support plate 5, which is used to adjust the length of the telescopic structure so that it is in contact between the sealing plate 4 and the support plate 5; the leak-proof airbag 1 and the telescopic structure are respectively located on both sides of the sealing plate 4.

[0019] To use, open the manhole cover 15, enter the manhole, and completely insert the leak-proof airbag 1 into the water inlet pipe 13, close to the pipe opening. Connect the air inlet pipe 2 to the leak-proof airbag 1 through the hole in the blocking plate 4. Turn on the air pump 12 to inflate the leak-proof airbag 1 until it expands and fits snugly against the inner wall of the water inlet pipe. Then turn off the air pump 12. Place the blocking plate 4 against the pipe opening of the water inlet pipe 13, completely blocking it. Adjust the length of the telescopic structure so that the blocking plate 4 and support plate 5 rest against the walls on both sides of the manhole. This allows for easy inspection and maintenance of the drain pipe 14, with excellent explosion-proof performance.

[0020] In a preferred embodiment of the present invention, the telescopic structure includes a support sleeve 6 and a screw 7. The support sleeve 6 is fixedly connected to the support plate 5. One end of the screw 7 is embedded in the support sleeve 6 and threadedly connected to the support sleeve 6. The screw 7 can be screwed in or out of the support sleeve 6. The structure is simple and easy to operate.

[0021] In a preferred embodiment of the present invention, the screw rod 7 is provided with a plurality of grooves 8 in the same direction as the axial direction of the screw rod 7. The limiting nut 9 is rotated to abut against the outer end of the support sleeve 6, and the screw 11 is rotated to make its end snap into the groove 8. The operation is convenient and has a good limiting effect.

[0022] In a preferred embodiment of the present invention, the leak-proof airbag 1 is made of nitrile rubber and has a better anti-corrosion effect.

[0023] In a preferred embodiment of the present invention, the air inlet pipe 2 is connected to the air pump 12, which can quickly inflate and deflate the leak-proof airbag 1, and can also be filled with nitrogen or inert gas, with rapid inflation and simple operation.

[0024] The above embodiments are used to further illustrate the present invention, but do not limit the present invention to these specific embodiments. Any modifications, equivalent substitutions, and variations made within the spirit and principles of the present invention should be understood to be within the scope of protection of the present invention.

Claims

1. A flameproof chemical underground sewage pipe leak plugging emergency device, including a leak plugging airbag, characterized in that: The leak-blocking airbag (1) is connected to an air intake pipe (2), and a pressure gauge (3) is provided on the air intake pipe (2); The invention also includes a support structure, wherein the support structure includes a blocking plate (4) for blocking the opening of the water inlet pipe (13), the blocking plate (4) being provided with a hole for the air inlet pipe (2) to pass through, a support plate (5) being provided at a position opposite to the blocking plate (4), and a telescopic structure being provided between the blocking plate (4) and the support plate (5), for adjusting the length of the telescopic structure so that the telescopic structure abuts between the blocking plate (4) and the support plate (5); The leak-blocking airbag (1) and the telescopic structure are respectively located on both sides of the blocking plate (4).

2. The explosion-proof chemical underground sewage pipeline leak-proof emergency device according to claim 1, characterized in that: The telescopic structure comprises a supporting sleeve (6) and a screw (7); the supporting sleeve (6) is fixedly connected to the supporting plate (5); one end of the screw (7) is embedded in the supporting sleeve (6) and is threadedly connected to the supporting sleeve (6); the screw (7) can be screwed in or out of the supporting sleeve (6).

3. The explosion-proof chemical underground sewage pipeline leak-proof emergency device according to claim 2, characterized in that: The screw (7) is provided with a plurality of grooves (8) having the same direction as the axial direction of the screw (7).

4. The explosion-proof chemical underground sewage pipeline leak-proof emergency device according to claim 2, characterized in that: It also includes a limiting nut (9), which is sleeved on the screw rod (7) and threadedly connected to the screw rod (7).

5. The explosion-proof chemical underground sewage pipeline leak-proof emergency device according to claim 4, characterized in that: The limiting nut (9) is provided with a through hole (10), the direction of the through hole (10) is perpendicular to the axial direction of the screw rod (7), and a screw (11) threadedly connected to the limiting nut (9) is provided in the through hole (10), and after the screw (11) is screwed into the through hole (10), the end portion of the screw (11) is stuck in the groove (8).

6. The explosion-proof chemical underground sewage pipeline leak-proof emergency device according to claim 1, characterized in that: The leak-stopping airbag (1) is made of nitrile rubber.

7. The explosion-proof chemical underground sewage pipeline leak-proof emergency device according to claim 1, characterized in that: The air inlet pipe (2) is connected to the air pump (12).

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