Device for treating leakage of gas circulating pipe without fire

Abstract

The utility model provides a device for treating leakage of a gas circulating pipe without fire, which comprises a sealing cover and a gas outlet pipe, the sealing cover is hermetically coated outside the leakage part of the gas circulating pipe, the sealing cover comprises a sealing cover upper shell and a sealing cover lower shell, and the sealing cover upper shell is fixedly connected with the sealing cover lower shell. One end of the coal gas outlet pipe is fixedly connected with the sealing cover upper shell, the part, extending out of a room, of the coal gas outlet pipe is fixedly connected to a wall body or a fence, the sealing cover upper shell is provided with a coal gas circulating pipe valve, the sealing cover lower shell is fixedly connected with a gas pipeline, and the gas pipeline is provided with a sealing cover lower nitrogen filling valve. According to the utility model, the CO concentration in the air blower basement and the operation room can be obviously controlled, and the CO concentration in the air blower basement and the operation room is reduced to zero.

Description

Technical Field

[0001] This utility model relates to the field of coking technology, and in particular to a device for treating gas circulation pipe leakage without ignition. Background Technology

[0002] The gas circulation pipeline is a process pipeline in the blast cooling process. Its main function is to regulate the valves of the blower circulation pipe when the gas volume decreases, thereby ensuring a stable gas volume before the gas blower and thus guaranteeing the stable operation of the gas blower. The stable operation of the gas blower circulation pipeline is crucial to the stable operation of the gas purification area. If there is a large leak in the blower circulation pipe, it can cause the blower to trip, resulting in coke oven venting and environmental impact.

[0003] Starting at the end of 2022, frequent leaks occurred at the DN600 valve of the gas blower circulation pipe in the gas purification area of ​​the coking department, leading to gas leaks. Because the leaks occurred near the valve, and the surrounding pipelines were severely corroded, the risk of hot work and welding operations was high. This resulted in CO concentrations exceeding the standard in the blower basement and blower room, posing a risk of fire and explosion, seriously affecting safe production, and also posing a risk of poisoning to personnel, seriously endangering their health. Utility Model Content

[0004] In response to the aforementioned technical problem, an apparatus for treating gas circulation pipe leaks without flame is provided.

[0005] The technical means adopted in this utility model are as follows:

[0006] A device for non-flammable treatment of gas circulation pipe leaks includes: a sealing cover and a gas outlet pipe. The sealing cover seals and covers the outside of the leaking part of the gas circulation pipe, and includes an upper housing and a lower housing. The upper housing and the lower housing are fixedly connected. One end of the gas outlet pipe is fixedly connected to the upper housing. The portion of the gas outlet pipe extending outdoors is fixedly connected to a wall or fence. A gas circulation pipe valve is installed on the upper housing. A gas pipeline is fixedly connected to the lower housing, and a nitrogen filling valve is installed on the gas pipeline.

[0007] Furthermore, the upper shell of the sealing cover has a first semi-circular groove on both sides, and the lower shell of the sealing cover has a second semi-circular groove on both sides. The first semi-circular grooves on both sides and the second semi-circular grooves on both sides respectively form a circular groove, and the circular groove is sealed to the gas circulation pipe.

[0008] Furthermore, the connection between the circular groove and the gas circulation pipe is sealed with sealant.

[0009] Furthermore, the gap between the upper housing of the sealing cover and the gas circulation pipe valve is sealed with sealant.

[0010] Furthermore, the upper housing and the lower housing of the sealing cover are fixedly connected by bolts, and a rubber gasket is provided between the upper housing and the lower housing of the sealing cover.

[0011] Furthermore, a rain cover is installed at the other end of the gas outlet pipe, and the rain cover is located outdoors.

[0012] Furthermore, the height of the gas outlet pipe is higher than that of the roof.

[0013] Furthermore, the sealing cover is made of aluminum plate, and the gas outlet pipe is made of PVC.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. The device for treating gas circulation pipe leakage without ignition provided by this utility model, by sealing the leaking part of the gas circulation pipe with a sealing cover, and connecting the gas outlet pipe and the gas circulation pipe valve to the sealing cover, can significantly control the CO concentration in the blower basement and operating room, reducing the CO concentration in the blower basement and operating room to zero.

[0016] 2. The device for non-flammable treatment of gas circulation pipe leakage provided by this utility model has a gas pipeline fixedly connected to the lower shell of the sealing cover. A nitrogen filling valve under the sealing cover is installed on the gas pipeline. Nitrogen filling leak test can be performed through the nitrogen filling valve under the sealing cover. A portable oxygen alarm is used to test for leaks at each connection point. If a leak is found, it needs to be resealed with sealant to ensure zero gas leakage.

[0017] 3. The device for treating gas circulation pipe leakage without flame provided by this utility model has the gas outlet pipe fixed to the wall or fence in the outdoor part, which can prevent leakage at the connection between the gas outlet pipe and the sealing cover due to shaking.

[0018] Based on the above reasons, this utility model can be widely promoted in fields such as coking. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the device for treating gas circulation pipe leakage without flame in a specific embodiment of this utility model.

[0021] Figure 2 This is a schematic diagram of the structure of the upper shell of the sealing cover in a specific embodiment of the present utility model, wherein (a) is the front view, (b) is the left view, and (c) is the top view.

[0022] Figure 3 This is a schematic diagram of the structure of the lower housing of the sealing cover in a specific embodiment of the present utility model, wherein (a) is the front view, (b) is the left view, and (c) is the top view.

[0023] In the diagram: 1. Lower housing of the sealing cover; 2. Nitrogen filling valve under the sealing cover; 3. Gas circulation pipe; 4. Upper housing of the sealing cover; 5. Gas outlet pipe; 6. Gas circulation pipe valve; 7. Rain cover on top of the gas outlet pipe. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] Example 1

[0026] This invention provides a device for non-flammable treatment of gas circulation pipe leaks, specifically a device for addressing excessive gas concentrations in the blower basement caused by gas leaks in the blower circulation pipe. The purpose of this invention is to control gas concentrations in basements and operating rooms, improve workplace safety, and ensure safe production.

[0027] This utility model discloses a device for non-flammable treatment of gas circulation pipe leakage, comprising: a sealing cover and a gas outlet pipe 5. The sealing cover seals and covers the outside of the leakage part of the gas circulation pipe 3, including an upper housing 4 and a lower housing 1. The upper housing 4 and the lower housing 1 are fixedly connected. One end of the gas outlet pipe 5 is fixedly connected to the upper housing 4. The part of the gas outlet pipe 5 extending outdoors is fixedly connected to a wall or fence. A gas circulation pipe valve 6 is installed on the upper housing 4. A gas pipeline is fixedly connected to the lower housing 1, and a nitrogen filling valve 2 is installed on the gas pipeline.

[0028] Example 2

[0029] Unlike Embodiment 1, in this embodiment, the upper housing 4 of the sealing cover has first semi-circular grooves on both sides, and the lower housing 1 of the sealing cover has second semi-circular grooves on both sides. The first semi-circular grooves on both sides and the second semi-circular grooves on both sides form circular grooves, and both circular grooves are sealed to the gas circulation pipe 3. The upper housing 4 of the sealing cover has two mounting holes for installation and connection with the gas outlet pipe 5 and the gas circulation pipe valve 6, respectively. The lower housing 1 of the sealing cover has one mounting hole for installation and connection with the gas pipeline. The sealing cover has a square structure, and the upper housing 4 and the lower housing 1 of the sealing cover can form a sealing cover with an internal chamber. The gas outlet pipe 5, the gas circulation pipe valve 6, and the gas pipeline are all connected to the chamber.

[0030] Preferably, the connection between the circular groove and the gas circulation pipe 3 is sealed with sealant. The gap between the upper housing 4 of the sealing cover and the gas circulation pipe valve 6 is also sealed with sealant.

[0031] Preferably, the upper housing 4 and the lower housing 1 of the sealing cover are fixedly connected by bolts, and a rubber gasket is provided between the upper housing 4 and the lower housing 1 of the sealing cover.

[0032] Preferably, a rain cover 7 is installed at the other end of the gas outlet pipe 5, and the rain cover 7 is located outdoors. The height of the gas outlet pipe 5 is higher than the roof.

[0033] Preferably, the sealing cover is made of aluminum plate, and the gas outlet pipe 5 is made of PVC.

[0034] Assembly process of this utility model:

[0035] 1) Because the pressure at the leak point in gas circulation pipe 3 is between 0 and 1000 Pa, thin aluminum plates are used in accordance with... Figure 2 , Figure 3 Fabricate a sealing cover, measuring the dimensions of each part according to the actual site conditions, and prepare a PVC pipe as the gas outlet pipe 5. The diameter of the gas outlet pipe 5 is selected according to the size of the sealing cover, and the length is determined according to the site usage.

[0036] 2) According to Figure 1 The sealing cover and the gas outlet pipe 5 are assembled. The upper housing 4 and the lower housing 1 of the sealing cover are fixedly connected by bolts, and a rubber gasket is provided between the upper housing 4 and the lower housing 1 of the sealing cover.

[0037] 3) After assembly, seal the connection between the sealing cover and the gas circulation pipe 3, as well as the gap between the upper shell 4 of the sealing cover and the valve 6 of the gas circulation pipe, with sealant.

[0038] 4) The outdoor portion of the gas outlet pipe 5 must be fixed to the wall or fence to prevent leakage at the connection between the gas outlet pipe 5 and the sealing cover due to shaking. At the same time, the height of the gas outlet pipe 5 should be 2 meters higher than the roof.

[0039] 5) After the sealant has cured, purge with nitrogen through the nitrogen filling valve 2 under the sealing cover to test for leaks. Use a portable oxygen alarm to test for leaks at each connection point. If a leak is found, reseal with sealant to ensure zero gas leakage.

[0040] 6) Close the nitrogen filling valve 2 under the sealing cover and put it into use.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A device for treating gas circulation pipe leaks without flame exposure, characterized in that, include: A sealing cover and a gas outlet pipe (5) are provided. The sealing cover is sealed and covers the outside of the leaking part of the gas circulation pipe (3). It includes an upper housing (4) and a lower housing (1) of the sealing cover. The upper housing (4) and the lower housing (1) of the sealing cover are fixedly connected. One end of the gas outlet pipe (5) is fixedly connected to the upper housing (4) of the sealing cover. The part of the gas outlet pipe (5) that extends outside the room is fixedly connected to the wall or fence. A gas circulation pipe valve (6) is installed on the upper housing (4) of the sealing cover. A gas pipeline is fixedly connected to the lower housing (1) of the sealing cover. A nitrogen filling valve (2) is installed on the gas pipeline.

2. The apparatus for treating gas circulation pipe leakage without flame exposure according to claim 1, characterized in that, The upper housing (4) of the sealing cover has a first semi-circular groove on both sides, and the lower housing (1) of the sealing cover has a second semi-circular groove on both sides. The first semi-circular groove on both sides and the second semi-circular groove on both sides respectively form a circular groove, and the circular groove is sealed to the gas circulation pipe (3).

3. The apparatus for treating gas circulation pipe leakage without flame exposure according to claim 2, characterized in that, The connection between the circular groove and the gas circulation pipe (3) is sealed with sealant.

4. The apparatus for treating gas circulation pipe leakage without flame exposure according to claim 1, characterized in that, The gap between the upper housing (4) of the sealing cover and the gas circulation pipe valve (6) is sealed with sealant.

5. The apparatus for treating gas circulation pipe leakage without flame exposure according to claim 1, characterized in that, The upper housing (4) of the sealing cover and the lower housing (1) of the sealing cover are fixedly connected by bolts, and a rubber gasket is provided between the upper housing (4) of the sealing cover and the lower housing (1) of the sealing cover.

6. The apparatus for treating gas circulation pipe leakage without flame exposure according to claim 1, characterized in that, The other end of the gas outlet pipe (5) is equipped with a gas outlet pipe top rain cover (7), which is located outdoors.

7. The apparatus for treating gas circulation pipe leakage without flame exposure according to claim 1, characterized in that, The height of the gas outlet pipe (5) is higher than that of the roof.

8. The apparatus for treating gas circulation pipe leakage without flame exposure according to claim 1, characterized in that, The sealing cover is made of aluminum plate, and the gas outlet pipe (5) is made of PVC.

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