Gas explosion suppression device

Abstract

The utility model discloses a gas explosion suppression device in the technical field of coal mine safety, the gas explosion suppression device comprises a liquid storage tank, a pressurization mechanism, an induction mechanism and an arc-shaped conveying pipeline, the conveying pipeline is mounted by being attached to the top of a mine tunnel, a plurality of nozzles are uniformly distributed on the conveying pipeline and are arranged towards the center of the conveying pipeline, and the pressurization mechanism is in electric signal connection with the induction mechanism. According to the scheme, the device can rapidly eject out the fire extinguishing material, a barrier wall is rapidly formed during gas explosion, and explosion is prevented from spreading.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine safety, in particular to a gas explosion suppression device. Background Art

[0002] Gas, a flammable gas primarily composed of methane, is commonly found in coal mines. Methane is a colorless, odorless gas that is highly flammable and explosive. Throughout geological history, as coal was formed, gas was gradually generated within coal seams. Gas can exist in a free state within the pores of the coal seams or adsorbed on the surface of the coal matrix. As coal is mined and disturbed, gas is released from the coal seams and enters the mine air.

[0003] Gas explosions are one of the most serious safety incidents in coal mines. Gas and oxygen react violently, generating high temperatures, high pressures, and shock waves, which can damage mine structures and even cause collapse. Explosions also release large amounts of toxic gases, such as carbon monoxide, further increasing the risk of accidents.

[0004] Gas explosions not only cause huge casualties, but also bring serious economic losses and environmental damage. Damage to mine structures may make subsequent rescue work difficult and prolong the period of resuming production. In addition, the toxic gases produced by the explosion pose a serious threat to the health of miners and may cause secondary disasters. Once a gas explosion occurs, the spread of blast waves and high-temperature gases will further aggravate the severity of the accident. Therefore, it is particularly important to develop a device that can quickly suppress the spread of explosions in the event of a gas explosion. The existing gas explosion suppression device is installed in the mine. When suppression is required, the device sprays fire extinguishing materials, and the fire extinguishing materials splash everywhere, resulting in the fire extinguishing materials being unable to quickly form a blocking surface on the vertical surface, which prolongs the blocking time. Utility Model Content

[0005] The utility model aims to provide a gas explosion suppression device to solve the problem of long blocking time during gas explosion in the prior art.

[0006] The gas explosion suppression device in this scheme includes a liquid storage tank, a boosting mechanism, an induction mechanism and an arc-shaped conveying pipeline. The conveying pipeline is installed in contact with the top of the mine tunnel. Multiple nozzles are evenly distributed on the conveying pipeline, and the multiple nozzles are set toward the center of the conveying pipeline. The boosting mechanism and the induction mechanism are electrically connected.

[0007] The working principle and beneficial effects of this solution are as follows: it is installed at a key position in the mine, the conveying pipeline is installed along the top arc of the mine tunnel, the nozzle is set toward the center of the arc, the liquid storage tank is placed on the ground, the boosting mechanism connects the liquid storage tank and the conveying pipeline, and the sensing mechanism is installed 1 to 10 meters away from the conveying pipeline. After the sensing mechanism senses the signal, the boosting mechanism is started, and the fire extinguishing material is adsorbed by the boosting mechanism and sprayed into the conveying pipeline with boost pressure. The fire extinguishing material is sprayed out by the nozzle. Since the nozzle on the conveying pipeline is facing the center of an arc, after the nozzle sprays the fire extinguishing material, a vertical barrier wall will be formed on the axial surface of the arc-shaped conveying pipeline, so that a cross-section can be quickly blocked to prevent the spread of fire or explosion.

[0008] Furthermore, the nozzle is trumpet-shaped, which can expand the spraying range of the fire extinguishing material and increase the spraying speed.

[0009] Furthermore, the nozzle is shaped like an elliptical trumpet, with the long diameter of the ellipse parallel to the curved surface of the delivery pipe. This configuration reduces the width of the fire extinguishing material sprayed from the nozzle, but allows the coaxial fire extinguishing material to be sprayed more quickly, allowing the barrier wall to be formed more quickly.

[0010] Furthermore, the sensing mechanism includes a pressure sensor, a temperature sensor and a gas sensor. The pressure sensor detects pressure, the temperature sensor detects temperature, and the gas sensor detects gas concentration.

[0011] Furthermore, the gas sensor is an infrared gas sensor, which can accurately measure gas concentration and is suitable for high-concentration detection.

[0012] Furthermore, the temperature sensor, pressure sensor and infrared gas sensor are sequentially arranged at intervals in the mine.

[0013] Furthermore, the system includes a central controller, which is electrically connected to the pressure sensor, temperature sensor, and infrared gas sensor, and is also electrically connected to the booster mechanism. The central controller receives and analyzes the data signals transmitted by the pressure sensor, temperature sensor, and infrared gas sensor. If it detects a sudden change in pressure or temperature, or an increase in gas concentration, it automatically activates the spiral booster to discharge the fire extinguishing material.

[0014] Furthermore, the boosting mechanism is a spiral booster, which can work continuously to make the fire extinguishing material spray more evenly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of a gas explosion suppression device of the present utility model;

[0016] Figure 2 for Figure 1 Right view of;

[0017] Figure 3 for Figure 2 Schematic diagram of the structure of the middle nozzle;

[0018] Figure 4 This is a signal transmission block diagram of the gas explosion suppression device of the present utility model. DETAILED DESCRIPTION

[0019] The following is a further detailed description through specific implementation methods:

[0020] The reference numerals in the drawings of the specification include: a liquid storage tank 1, a screw supercharger 2, a delivery pipeline 3, an infrared gas sensor 4, a pressure sensor 5, and a temperature sensor 6.

[0021] The embodiment is basically as shown in the attached Figures 1 to 4 As shown: A gas explosion suppression device includes a liquid storage tank 1, a spiral supercharger 2, a sensing mechanism, a central controller and an arc-shaped conveying pipe 3. The liquid storage tank 1 is supported by a bracket to maintain its stability. The conveying pipe 3 is installed in contact with the mine roof. Multiple discharge ports are evenly distributed on the conveying pipe 3, and the discharge ports face the center of the conveying pipe 3. The discharge ports are connected to nozzles, which are elliptical trumpet-shaped. Multiple nozzles face the center of the conveying pipe 3. The sensing mechanism includes a pressure sensor 5, a temperature sensor 6 and an infrared gas sensor 4. The temperature sensor 6, the pressure sensor 5 and the infrared gas sensor 4 are arranged in the mine from left to right in sequence. The gas sensor is close to the liquid storage tank 1. The central controller is used to receive data signals transmitted by the pressure sensor 5, the temperature sensor 6 and the infrared gas sensor 4, and perform analysis and judgment. If a sharp change in pressure or temperature is detected, or an increase in gas concentration is detected, the spiral supercharger 2 is automatically started to spray fire extinguishing materials.

[0022] The device is installed at a key position in the mine. The delivery pipeline 3 is installed along the top arc of the mine tunnel, and the nozzle is set toward the center of the arc. The liquid storage tank 1 is placed on the ground. The spiral supercharger 2 connects the liquid storage tank 1 and the delivery pipeline 3. The sensing mechanism is installed 31 to 10 meters away from the delivery pipeline. The temperature sensor 6 detects the temperature, the pressure sensor 5 detects the pressure, and the gas sensor detects the gas concentration. The central controller is used to receive the data signals transmitted by the pressure sensor 5, the temperature sensor 6 and the infrared gas sensor 4 for analysis and judgment. If a sharp change in pressure or temperature, or an increase in gas concentration is detected, the boosting mechanism is automatically activated to spray the fire extinguishing material. The spiral supercharger 2 is started, and the fire extinguishing material is adsorbed by the spiral supercharger 2 and sprayed into the conveying pipe 3 with boosted pressure. The fire extinguishing material is sprayed out using a nozzle. Since the nozzle on the conveying pipe 3 is facing the center of an arc, after the nozzle sprays the fire extinguishing material, a vertical barrier wall will be formed on the axial surface of the arc-shaped conveying pipe 3, so that a cross-section can be quickly blocked to prevent the spread of fire or explosion.

[0023] The above is only an embodiment of the present invention, and the commonly known specific structures and characteristics of the scheme are not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, and these should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection claimed by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. Gas explosion suppression device, characterized by: It includes a liquid storage tank, a boosting mechanism, an induction mechanism and an arc-shaped conveying pipeline. The conveying pipeline is installed in contact with the top of the mine tunnel. Multiple nozzles are evenly distributed on the conveying pipeline. Multiple nozzles are set towards the center of the conveying pipeline. The boosting mechanism and the induction mechanism are connected with electrical signals.

2. The gas explosion suppression device according to claim 1, characterized in that: The nozzle is trumpet-shaped.

3. The gas explosion suppression device according to claim 2, characterized in that: The nozzle is in the shape of an elliptical trumpet, and the long diameter of the ellipse is parallel to the arc surface of the delivery pipeline.

4. The gas explosion suppression device according to claim 3, characterized in that: The sensing mechanism includes a pressure sensor, a temperature sensor and a gas sensor.

5. The gas explosion suppression device according to claim 4, characterized in that: The gas sensor is an infrared gas sensor.

6. The gas explosion suppression device according to claim 5, characterized in that: The temperature sensor, pressure sensor and infrared gas sensor are sequentially arranged at intervals in the mine.

7. The gas explosion suppression device according to claim 6, characterized in that: The utility model also includes a central controller, which is electrically connected to the pressure sensor, the temperature sensor and the infrared gas sensor, and is electrically connected to the boosting mechanism.

8. The gas explosion suppression device according to claim 7, characterized in that: The supercharging mechanism is a screw supercharger.

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