Automatic alarm pressure supplementing type gas pipeline anti-extrusion device
By using automatic alarm and pressure replenishment device with wire rubber cover and automatic valve underground in coal mines, the extrusion problem caused by the deformation of the gas pipeline due to facilities is solved, the safety and production capacity of the extraction system are improved, and the gas power station is prevented from being shut down. .
Patent Information
- Application Number
- CN202420901961.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-04-28
AI Technical Summary
The underground gas pipeline of the coal mine is squeezed due to facilities deformation, resulting in insufficient negative extraction pressure and pipeline rupture, affecting the safety of coal mine production.
The hollow outer cover made of rubber material with steel wire passes through the wall of the underground ventilation facility, is equipped with automatic valves and pressure sensing alarm pressure relief devices, and automatically monitors and recharges gas pipelines to prevent squeezing and air leakage.
Effectively prevent gas pipeline rupture and insufficient negative pressure extraction, improve the safety and production capacity of the underground gas extraction system of coal mines, and avoid gas power station shutdown accidents.
Smart Images
Figure CN222276731U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of underground gas extraction equipment, and in particular relates to an automatic alarm and pressure-compensating gas pipeline anti-extrusion device. Background Art
[0002] During the installation of underground gas pipelines in coal mines, the gas pipelines need to pass through the walls due to the influence of underground fire damper walls, regulating walls and other facilities. After the gas pipelines pass through the walls, the underground tunnels of the coal mines are affected by the ground stress, causing various underground facilities to be severely deformed, resulting in the gas pipelines being squeezed and deformed. The deformation of the gas pipelines causes the cross-sectional area of the gas pipelines to become smaller, the flow rate in the pipelines to increase, and the negative pressure of extraction to decrease, resulting in insufficient negative pressure in the underground extraction boreholes of the coal mines, resulting in substandard extraction of the coal mines. If the wall deformation is severe and causes the gas pipeline to rupture, it will cause the extraction concentration in the gas pipeline to decrease, leading to a shutdown accident of the ground gas power station, seriously affecting the safe production of the coal mines. Utility Model Content
[0003] The utility model provides an automatic alarm and pressure-compensating gas pipeline anti-squeezing device to solve the problem that the gas pipeline is deformed due to serious deformation of various facilities in existing coal mines, which affects the safety of extraction.
[0004] The utility model adopts the following technical solutions:
[0005] The invention discloses an automatic alarm pressure-compensating gas pipeline anti-extrusion device, comprising a hollow outer cover made of rubber material with steel wire, wherein the outer cover passes through the wall of underground ventilation facilities, an automatic valve is provided at the bottom of one end of the outer cover, one end of the automatic valve is connected to an air supply pipe, one end of the air supply pipe is connected to an underground compressed air pipeline through a pressure sensing valve, and an automatic pressure sensing alarm pressure relief device is provided at the top of the other end of the outer cover.
[0006] Furthermore, the cross section of the outer cover is circular.
[0007] Furthermore, a gas pipeline is provided inside the outer cover.
[0008] Furthermore, the pressure automatic sensing alarm pressure relief device includes a pressure automatic sensing alarm and an automatic valve 2, the output end of the pressure automatic sensing alarm is connected to the input end of the automatic valve 2, the automatic valve 2 is connected to the outer cover, and the pressure automatic sensing alarm is electrically connected to the power supply.
[0009] The beneficial effects of the utility model are as follows:
[0010] By using the utility model, the problems of various underground facilities in coal mines being deformed due to pressure, resulting in rupture of gas pipelines, reduction of gas concentration in underground extraction systems, and shutdown of gas power stations are eliminated. The problem of insufficient negative pressure in gas drilling extraction due to squeezing and leakage of gas pipelines is eliminated. The operation safety of underground gas extraction systems in coal mines is improved, and the safety production capacity of coal mines is enhanced. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a structural schematic diagram of the utility model;
[0012] Figure 2 This is a structural schematic diagram of a pressure automatic sensing alarm pressure relief device;
[0013] Figure 3 This is a schematic diagram of the installation and use of the utility model;
[0014] Among them: 1-outer cover; 2-automatic pressure sensing alarm pressure relief device; 3-pressure sensing valve; 4-automatic valve one; 5-compressed air pipeline; 6-air supply pipe; 7-fire damper wall; 8-gas pipeline; 9-automatic pressure sensing alarm; 10-automatic valve two; 11-power supply. DETAILED DESCRIPTION
[0015] The utility model is further described with reference to the accompanying drawings.
[0016] As shown in the figure, an automatic alarm pressure-compensating gas pipeline anti-extrusion device includes a hollow outer cover 1 made of rubber material with steel wire, the outer cover 1 passes through the wall of the underground ventilation facility, an automatic valve 4 is provided at the bottom of one end of the outer cover 1, one end of the automatic valve 4 is connected to an air supply pipe 6, one end of the air supply pipe 6 is connected to an underground pressurized air pipeline 5 through a pressure sensing valve 3, and a pressure automatic sensing alarm pressure relief device 2 is provided on the top of the other end of the outer cover 1.
[0017] The outer cover 1 expands after being rushed into high pressure wind, and is installed in the wall of underground fire door, adjustment wall and other facilities. The gas pipeline 8 passes through the outer cover 1.
[0018] The method of using the utility model is as follows:
[0019] The outer cover 1 is installed in the wall of the underground ventilation facility, and high-pressure air is injected into the outer cover 1 through the pressure sensing valve 3 and the automatic valve 4. Affected by the underground mine pressure, after the ventilation facility is pressurized, the pressure is transmitted to the outer cover 1, and the pressure automatic sensing alarm pressure relief device 2 automatically alarms and relieves pressure after being pressurized, which plays a role in protecting the gas pipeline. After receiving the alarm signal, the operating personnel perform maintenance on the pressurized ventilation facility, and the pressure sensing valve 3 installed on the underground compressed air pipeline automatically replenishes the pressure of the outer cover 1, so as to protect the gas pipeline.
[0020] After the utility model is installed underground, if the underground facilities are deformed due to ground stress, the device will send out an alarm signal, and the outer cover can automatically relieve pressure according to the stress conditions to protect the gas pipeline. After the deformed facilities are maintained, the rubber tempered outer cover can automatically restore pressure.
[0021] The utility model can be repeatedly used in coal mines. After being used at one location, the device can be disassembled after automatic pressure relief and installed at the next location for use.
Claims
1. An automatic alarm and pressure-compensating gas pipeline anti-extrusion device, characterized in that: The invention comprises a hollow outer cover (1) made of a rubber material with steel wire, wherein the outer cover (1) passes through the wall of underground ventilation facilities, an automatic valve (4) is provided at the bottom of one end of the outer cover (1), one end of the automatic valve (4) is connected to an air supply pipe (6), one end of the air supply pipe (6) is connected to an underground pressure air pipeline (5) via a pressure sensing valve (3), and an automatic pressure sensing alarm pressure relief device (2) is provided at the top of the other end of the outer cover (1).
2. The automatic alarm and pressure-compensating gas pipeline anti-extrusion device according to claim 1 is characterized in that: The cross section of the outer cover (1) is circular.
3. The automatic alarm and pressure-compensating gas pipeline anti-extrusion device according to claim 1 is characterized in that: A gas pipeline (8) is provided inside the outer cover (1).
4. The automatic alarm and pressure-compensating gas pipeline anti-extrusion device according to claim 1 is characterized in that: The pressure automatic sensing alarm pressure relief device (2) comprises a pressure automatic sensing alarm (9) and an automatic valve 2 (10), the output end of the pressure automatic sensing alarm (9) is connected to the input end of the automatic valve 2 (10), the automatic valve 2 (10) is connected to the outer cover (1), and the pressure automatic sensing alarm (9) is electrically connected to a power source.