A mine gas conveying pipeline leakage emergency plugging device

Abstract

The utility model belongs to pipeline leak stoppage technical field especially relates to a mine gas transmission pipeline leak emergency plugging device, including sealed gas bag, the outside of sealed gas bag is equipped with the plugging main part, the plugging main part includes two identical plugging board, two plugging board fixedly connected through two groups of hoop assembly, the air cock, the air cock fixed mounting on the outer surface of sealed gas bag, the inside of upper plugging board is equipped with the through -hole structure of adapting with the air cock, one end of air cock passes through the inside through -hole structure of plugging board and extends to its outside, the air cock's air inlet side outside thread sleeve has the cover. The utility model effectively fills up the gap that traditional rigid plugging cannot cover, realizes the all -round, dead -angle -free sealing of leak point area, significantly improves the sealing reliability and adaptability of plugging device, reduces the trace gas leakage risk.

Description

Technical Field

[0001] This utility model belongs to the field of pipeline leak sealing technology, and in particular relates to an emergency sealing device for leaks in mining gas transmission pipelines. Background Technology

[0002] Gas transmission pipelines are the core facilities for gas extraction and utilization in coal mines, and their stability is crucial to underground safety and resource utilization. Due to the complex underground environment, pipelines are susceptible to corrosion, compression, and other factors that can lead to leaks. Gas leaks can cause accidents such as explosions and poisoning of personnel. Therefore, when a leak occurs in a mine gas transmission pipeline, an emergency sealing device must be used to quickly seal the leak.

[0003] Based on research and practical experience in gas extraction, it was found that existing emergency sealing devices for leaks in mine gas pipelines still have many technical shortcomings in practical applications, making it difficult to meet the needs of complex underground coal mine operations. Firstly, the sealing reliability is insufficient. Most existing devices use a rigid sealing plate directly attached to the outer wall of the pipeline, lacking elastic compensation components. When there are minor irregularities on the outer wall of the pipeline or local stress occurs during installation, sealing gaps can easily form, leading to a risk of minor gas leakage even after sealing. Secondly, the monitoring function is incomplete, failing to achieve remote real-time transmission of pressure data. Management personnel cannot obtain pipeline status information immediately, hindering rapid response. Therefore, there is an urgent need to improve existing devices to provide a better emergency sealing device for leaks in mine gas pipelines. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by providing a reasonably designed, simple, more reliable sealing device for emergency sealing of leaks in mine gas transmission pipelines with remote monitoring capabilities, thereby solving the problems existing in the prior art.

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

[0006] An emergency sealing device for leaks in mine gas transmission pipelines, comprising:

[0007] A sealing airbag, wherein a sealing body is provided on the outside of the sealing airbag, and the sealing body includes two identical sealing plates, the two sealing plates being fixedly connected by two sets of clamp assemblies;

[0008] An air nozzle is fixedly installed on the outer surface of the sealing airbag. The upper sealing plate has a through hole structure adapted to the air nozzle inside. One end of the air nozzle passes through the through hole structure inside the sealing plate and extends to its outer side. A cap is threaded onto the outer side of the air inlet end of the air nozzle.

[0009] In a preferred embodiment, the surface of the sealing airbag is fixed with Velcro, which includes a male adhesive and a female adhesive. The male adhesive is fixed to the outer side of one end of the sealing airbag, and the female adhesive is fixed to the inner side of the other end of the sealing airbag. When the sealing airbag surrounds the pipe, the male adhesive and the female adhesive can be bonded to each other.

[0010] In a preferred embodiment, the sealing plate has concave grooves on the outer walls of both the left and right ends.

[0011] In a preferred embodiment, the clamp assembly includes two clamp rings, each with a vertically oriented protrusion at both ends, and the clamp rings are engaged in a pre-reserved groove on the outer wall of the sealing plate.

[0012] In a preferred embodiment, two clamp rings in the same set of clamp assemblies are fixedly connected by a locking element, which includes a matching bolt and nut.

[0013] In a preferred embodiment, a monitor is also included, which is fixed to the surface of the sealing plate. The monitor contains a wireless transmission module, a central control module, a pressure sensing module, and a rechargeable battery. The wireless transmission module, the central control module, the pressure sensing module, and the rechargeable battery are all electrically connected. The pressure sensing module is a pressure sensor, which is fixed to the inner wall of the sealing plate and closely fitted to the surface of the sealing airbag. The wireless transmission module is used to transmit the pressure data monitored in real time by the pressure sensing module to a remote monitoring terminal.

[0014] In a preferred embodiment, the monitor is further provided with a charging module, which is a Type-C charging interface and is embedded in the right side wall of the monitor. The charging module is electrically connected to a rechargeable battery to realize the charging function.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] In the solution of this utility model:

[0017] This invention solves the problem of gaps easily left by traditional rigid plugs through a collaborative design of "Hook and loop fasteners + sealing airbag + clamp bolts". The hook and loop fasteners enable rapid positioning of the sealing airbag, shortening installation time. The clamp bolts, bolts, and nuts are used to fix the plugging plates, ensuring that the two plugging plates form a stable clamping force on the sealing airbag, preventing loosening due to downhole vibration. Moreover, the sealing airbag can be inflated by an air nozzle, and its elastic properties can actively adapt to the slight unevenness of the pipeline outer wall and offset the local stress generated during installation. It effectively fills the gaps that traditional rigid plugs cannot cover, achieving all-round, dead-angle-free sealing of the leak area, significantly improving the sealing reliability and adaptability of the plugging device, and reducing the risk of trace gas leakage.

[0018] In this invention, the pressure sensing module is directly attached to the surface of the sealing airbag, enabling real-time and accurate acquisition of the airbag's pressure status data. Compared to indirect monitoring methods, this significantly improves the accuracy of pressure monitoring and can promptly detect abnormal pressure changes in the sealing airbag caused by leakage. Furthermore, the use of a wireless transmission module enables real-time transmission of pressure data to a remote monitoring terminal, allowing management personnel to obtain pipeline sealing status information immediately. This eliminates the need for on-site inspections to assess the effectiveness of the sealing, significantly shortening the response time to leakage risks. It provides data support for quickly addressing sealing failures and preventing secondary safety accidents, thereby enhancing the intelligence and timeliness of emergency response to gas pipeline leaks in coal mines. 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. The drawings are described as follows:

[0020] Figure 1 This is a three-dimensional front view structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the three-dimensional rear view structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the disassembled structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the internal structure of the monitor of this utility model.

[0024] In the picture:

[0025] 1. Sealing airbag; 2. Sealing plate; 3. Reserved groove; 4. Hoop ring; 5. Protrusion; 6. Bolt; 7. Nut; 8. Air nozzle; 9. Cover; 10. Monitor; 11. Wireless transmission module; 12. Central control module; 13. Pressure sensing module; 14. Rechargeable battery; 15. Charging module. Detailed Implementation

[0026] The embodiments described below are merely some embodiments of the present invention and do not represent all embodiments consistent with the present invention. Exemplary embodiments will now be described with reference to the accompanying drawings:

[0027] like Figure 1-4 As shown, the present invention relates to an emergency sealing device for leaks in mine gas transmission pipelines, comprising:

[0028] The sealing airbag 1 has a sealing body on its outer side. The sealing body includes two identical sealing plates 2, which are fixedly connected by two sets of clamp assemblies.

[0029] The air nozzle 8 is fixedly installed on the outer surface of the sealing airbag 1. The upper sealing plate 2 has a through hole structure that is compatible with the air nozzle 8. One end of the air nozzle 8 passes through the through hole structure inside the sealing plate 2 and extends to its outer side. The outer side of the air inlet end of the air nozzle 8 is threaded with a cap 9.

[0030] Based on the above structure, the surface of the sealing airbag 1 is fixed with Velcro, which includes a male adhesive and a female adhesive. The male adhesive is fixed to the outside of one end of the sealing airbag 1, and the female adhesive is fixed to the inside of the other end of the sealing airbag 1. When the sealing airbag 1 surrounds the pipe, the male adhesive and the female adhesive can be bonded to each other.

[0031] In this embodiment, the use of Velcro allows the sealing airbag 1 to be conveniently and easily installed around the outside of the pipe leak.

[0032] Based on the above structure, the outer walls of both the left and right ends of the sealing plate 2 are provided with concave reserved grooves 3.

[0033] In this embodiment, the reserved slot 3 facilitates the stable installation of the clamp assembly.

[0034] Based on the above structure, the clamp assembly includes two clamp rings 4, both ends of which are provided with protrusions 5 in the vertical direction. The clamp rings 4 are engaged and installed in the reserved grooves 3 opened on the outer wall of the sealing plate 2.

[0035] Based on the above structure, the two hoop rings 4 in the same set of clamping assemblies are fixedly connected by locking components, which include matching bolts 6 and nuts 7.

[0036] In this embodiment, bolts 6 and nuts 7 are used to facilitate the positioning of the two clamping rings 4, thereby facilitating the fixing of the sealing plate 2 and ensuring that the two sealing plates 2 form a stable clamping force on the sealing airbag 1, preventing loosening due to downhole vibration.

[0037] Based on the above structure, a monitor 10 is also included, which is fixed to the surface of the sealing plate 2. The monitor 10 has a wireless transmission module 11, a central control module 12, a pressure sensing module 13 and a rechargeable battery 14 inside. The wireless transmission module 11, the central control module 12, the pressure sensing module 13 and the rechargeable battery 14 are all electrically connected. The pressure sensing module 13 is a pressure sensor. The pressure sensing module 13 is fixed to the inner wall of the sealing plate 2 and is in close contact with the surface of the sealing airbag 1. The wireless transmission module 11 is used to transmit the pressure data monitored in real time by the pressure sensing module 13 to a remote monitoring terminal.

[0038] In this embodiment, the pressure sensing module 13 is directly attached to the surface of the sealing airbag 1, which can collect the pressure status data of the sealing airbag 1 in real time and accurately. Moreover, the use of the wireless transmission module 11 can realize the real-time transmission of pressure data to the remote monitoring terminal. Managers can obtain pipeline blockage status information at the first time and grasp the effectiveness of the blockage without on-site inspection, which significantly shortens the response time for leakage risks.

[0039] Based on the above structure, the monitor 10 is also provided with a charging module 15. The charging module 15 has a Type-C charging interface and is embedded in the right side wall of the monitor 10. The charging module 15 is electrically connected to the rechargeable battery 14 to realize the charging function.

[0040] In this embodiment, the charging module 15 is used to charge the rechargeable battery 14 so as to provide the necessary power for the operation of the monitor 10.

[0041] The working principle of this utility model is as follows:

[0042] In use, firstly, the sealing airbag 1 is wrapped around the leak point of the mine gas transmission pipeline using Velcro on its outer side. Then, two arc-shaped sealing plates 2 are wrapped around the outer side of the sealing airbag 1 from both sides. After the inner wall of the sealing plate 2 is initially attached to the outer wall of the sealing airbag 1, the clamp 4 is put on the outer side of the sealing plate 2 and the bolt 6 is tightened with the nut 7 to fix it. The clamp 4 is used to clamp and fix the two sealing plates 2, ensuring that the sealing plates 2 are not easy to loosen in the vibration environment of the coal mine, and providing stable external support for the sealing airbag 1.

[0043] Then, air is injected into the sealing airbag 1 through the pre-set air nozzle 8 until the sealing airbag 1 expands to fit tightly against the outer wall of the pipe and the inner wall of the sealing plate 2. At this time, the elasticity of the sealing airbag 1 can actively adapt to the small uneven structure of the outer wall of the pipe, and at the same time offset the local stress generated during the installation of the sealing plate 2, effectively fill the sealing gap that is easily formed by traditional rigid sealing, achieve all-round sealing without dead angles in the leak area, and reduce the risk of micro-gas leakage.

[0044] After the sealing operation is completed, the pressure sensing module 13 is pre-fixed to the inner wall of the sealing plate 2 and fits against the surface of the sealing airbag 1. Therefore, it can collect the pressure status data of the sealing airbag 1 in real time and transmit the data to the central control module 12 in the monitor 10. After processing the pressure data, the central control module 12 sends the real-time pressure data to the remote monitoring terminal through the wireless transmission module 11. The management personnel can obtain the pipeline sealing status information in the first time, and can judge the effectiveness of the sealing without on-site inspection. In this way, they can quickly formulate a leak handling plan, avoid secondary safety accidents caused by the failure of sealing to be detected in time, and realize the coordinated operation of emergency sealing and status monitoring.

[0045] It should be noted that the specific structure of the monitor 10 and the working principle of each module are all existing products and mature technologies on the market, which are directly referenced in this case and will not be described in detail here.

[0046] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any equivalent changes, modifications, substitutions, and variations made by those skilled in the art based on the concept of this utility model and on the basis of existing technology through logical analysis, reasoning, or limited experiments shall be within the scope of protection defined by the claims.

Claims

1. An emergency sealing device for leaks in mine gas transmission pipelines, characterized in that, include: A sealing airbag (1) is provided on the outside of the sealing airbag (1). The sealing body includes two identical sealing plates (2). The two sealing plates (2) are fixedly connected by two sets of clamp assemblies. The air nozzle (8) is fixedly installed on the outer surface of the sealing airbag (1). The upper sealing plate (2) has a through hole structure adapted to the air nozzle (8) inside. One end of the air nozzle (8) passes through the internal through hole structure of the sealing plate (2) and extends to its outer side. The air inlet end of the air nozzle (8) is threaded with a cap (9).

2. The emergency sealing device for leaks in mine gas transmission pipelines according to claim 1, characterized in that: The surface of the sealing airbag (1) is fixed with Velcro, which includes a male adhesive and a female adhesive. The male adhesive is fixed to the outside of one end of the sealing airbag (1), and the female adhesive is fixed to the inside of the other end of the sealing airbag (1). When the sealing airbag (1) surrounds the pipe, the male adhesive and the female adhesive can be bonded to each other.

3. The emergency sealing device for leaks in mine gas transmission pipelines according to claim 1, characterized in that: The sealing plate (2) has concave grooves (3) on the outer walls of both the left and right ends.

4. The emergency sealing device for leaks in a mine gas transmission pipeline according to claim 3, characterized in that: The clamp assembly includes two clamp rings (4), both ends of which are provided with protrusions (5) in the vertical direction. The clamp rings (4) are engaged in the reserved groove (3) opened on the outer wall of the sealing plate (2).

5. The emergency sealing device for leaks in a mine gas transmission pipeline according to claim 4, characterized in that: Two hoop rings (4) in the same set of clamping assemblies are fixedly connected by locking members, which include matching bolts (6) and nuts (7).

6. The emergency sealing device for leaks in mine gas transmission pipelines according to claim 1, characterized in that: It also includes a monitor (10) fixed on the surface of the sealing plate (2). The monitor (10) is equipped with a wireless transmission module (11), a central control module (12), a pressure sensing module (13) and a rechargeable battery (14). The wireless transmission module (11), the central control module (12), the pressure sensing module (13) and the rechargeable battery (14) are all electrically connected. The pressure sensing module (13) is a pressure sensor. The pressure sensing module (13) is fixed on the inner wall of the sealing plate (2) and is in close contact with the surface of the sealing airbag (1). The wireless transmission module (11) is used to transmit the pressure data monitored in real time by the pressure sensing module (13) to a remote monitoring terminal.

7. The emergency sealing device for leaks in a mine gas transmission pipeline according to claim 6, characterized in that: The monitor (10) is also provided with a charging module (15), which is a Type-C charging interface. The charging module (15) is embedded in the right side wall of the monitor (10). The charging module (15) is electrically connected to the rechargeable battery (14) to realize the charging function.

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