Coal mine gas liquid carbon dioxide fire preventing and extinguishing equipment

Abstract

The utility model relates to coal mine gas liquid carbon dioxide fire preventing and extinguishing equipment which is characterized in that a pipeline rack is fixedly mounted on the side wall of a roadway, a fire preventing and extinguishing control assembly is fixedly mounted on a top plate of the roadway and is connected with a liquid carbon dioxide storage assembly through a pipeline, and the liquid carbon dioxide storage assembly is mounted in the roadway through a support. An inductor is arranged on the side wall of the roadway; a controller is integrated in the fire prevention and extinguishing control assembly; according to the utility model, the fire prevention and extinguishment control assembly capable of temporarily closing the roadway is arranged in a fire-prone section, and the liquid carbon dioxide storage assembly flushes carbon dioxide into the fire-prone section through the fire prevention and extinguishment control assembly, so that the purpose of fire prevention and extinguishment is achieved by reducing the oxygen content in the section; as the equipment can be automatically attended for a long time in a fire-prone section, an initial fire source can be found in time, fire prevention and extinguishment operation can be carried out, the fire prevention and extinguishment reaction time can be effectively shortened, and the safety risk is reduced.

Description

Technical Field

[0001] This utility model relates to fire prevention and extinguishing equipment, specifically a coal mine gas liquid carbon dioxide fire prevention and extinguishing equipment. Background Technology

[0002] During production activities underground in coal mines, fires can occur at various points, including conveyor belts, working face faces, fully mechanized mining faces, and electrical roadways. Current fire prevention and extinguishing measures mainly involve placing fire extinguishers and sandboxes at specific locations and manually extinguishing fires when they are discovered. This method has an extremely slow response time and cannot control fires in their early stages. Furthermore, it requires personnel intervention, which increases the risk of fire and seriously affects the safe production of the mine.

[0003] Currently, a utility model patent with publication number CN214660315U discloses a multi-functional vaporizer for fire prevention and extinguishing in coal mines. A vaporization pipe is connected above a liquid carbon dioxide tanker via connecting pipes and valves. The vaporization pipe, in a coiled shape, passes through a hot water tank and connects to the inner cavity of a foam generator. A first set of electric heating pipes and a second set of electric heating pipes are installed above the hot water tank. An insulation layer is provided around the hot water tank. The output end of a foam pump is connected to the foam generator via a foam pipe. The input end of the foam pump is connected to a stirrer. The output end of the foam generator is connected to an underground pipeline. The underground pipeline transports the carbon dioxide foam from the foam generator to the high-temperature floating coal. The hot water tank can also be heated by coal combustion. This multi-functional fire prevention and extinguishing vaporizer provides vaporized nitrogen, vaporized carbon dioxide, or carbon dioxide foam to the goaf area of ​​the underground working face, ensuring fire prevention and extinguishing needs for different spontaneous combustion situations in the goaf area.

[0004] As can be seen from the above-disclosed technical content, although the prior art with announcement number CN214660315U can extinguish fires in a variety of ways, its structure is relatively complex, the production and deployment costs are high, the installation is complicated, and it is not very convenient to use. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model provides a coal mine gas liquid carbon dioxide fire prevention and extinguishing equipment that can automatically monitor fire-prone areas for extended periods, promptly detect initial fire sources, and perform fire prevention and extinguishing operations, effectively reducing fire prevention and extinguishing response time and safety risks.

[0006] To achieve the above objectives, this utility model provides a coal mine gas liquid carbon dioxide fire prevention and extinguishing equipment, comprising a roadway, a pipeline frame, a fire prevention and extinguishing control component, a control component body, and sensors. The pipeline frame is fixedly installed on the side wall of the roadway, and the fire prevention and extinguishing control component is fixedly installed on the roadway roof. The fire prevention and extinguishing control component is connected to a liquid carbon dioxide storage component via pipelines. The liquid carbon dioxide storage component is installed in the roadway via a bracket. Sensors are located on the side wall of the roadway. A control unit is integrated inside the fire prevention and extinguishing control component. Carbon dioxide nozzles are evenly spaced at the front of the control component body. The carbon dioxide nozzles are connected to the liquid carbon dioxide storage component via carbon dioxide supply pipes and pipelines. The top of the isolation curtain is fixedly connected inside the control component body via an isolation curtain mounting base. Inflatable side curtains are fixedly installed on both sides of the isolation curtain. Air ducts on the pipeline frame are connected to inflatable air ducts via pipelines, and the inflatable air ducts are connected to the inflatable side curtains of the isolation curtain. Fire source observation cameras are installed at both the front and rear of the control component body. The control unit inside the control component body is connected to a network cable on the pipeline frame via wiring and a router. A restraint device is installed at the lower opening of the control component body to restrain the isolation curtain.

[0007] In addition, the coal mine gas liquid carbon dioxide fire extinguishing equipment proposed in the above embodiments of this utility model may also have the following additional technical features:

[0008] As a further improvement of this utility model, the liquid carbon dioxide storage assembly includes a main carbon dioxide supply pipe, a liquid carbon dioxide storage assembly body, a liquid carbon dioxide weighing device, and a liquid carbon dioxide storage bottle. A sealing door is provided on the front surface of the liquid carbon dioxide storage assembly body. The liquid carbon dioxide storage bottle is installed inside the sealing door through the liquid carbon dioxide weighing device. The liquid carbon dioxide storage bottle is connected to the main carbon dioxide supply pipe through a solenoid valve and a pipeline. The main carbon dioxide supply pipe is connected to the carbon dioxide supply pipe through a pipeline.

[0009] As a further improvement of this utility model, the liquid carbon dioxide storage component has a built-in backup battery pack.

[0010] As a further improvement of this utility model, the control component body is equipped with spray heads at the front and rear respectively, and the spray heads are connected to the water supply pipe on the pipeline rack through pipelines and solenoid valves.

[0011] As a further improvement of this utility model, the sensor is a gas sensor or a smoke sensor.

[0012] As a further improvement of this utility model, the restraint device includes a control motor, a screw, a restraint arm, and a restraint arm shaft. The restraint arm is installed inside the control component body via the restraint arm shaft. The control motor is fixedly installed on the other side inside the control component body. The screw at the bottom of the control motor is screwed into a pre-set screw hole in the restraint arm. The restraint arm is made of plastic.

[0013] By employing the above-mentioned solution, this utility model has at least the following advantages: Compared with conventional manual fire prevention and extinguishing, by deploying fire prevention and extinguishing control components that can temporarily close the roadway in fire-prone sections, and by using liquid carbon dioxide storage components to flush carbon dioxide into the fire-prone section through the fire prevention and extinguishing control components, the purpose of fire prevention and extinguishing is achieved by reducing the oxygen content in the section. Since the equipment can automatically monitor the fire-prone section for a long time, it can promptly detect the initial fire source and carry out fire prevention and extinguishing operations, which can effectively reduce the fire prevention and extinguishing response time and reduce safety risks. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the layout of coal mine gas and liquid carbon dioxide fire extinguishing equipment;

[0015] Figure 2 This is a 3D diagram of the fire prevention and extinguishing control components of a coal mine gas and liquid carbon dioxide fire prevention and extinguishing equipment.

[0016] Figure 3 This is a structural diagram of the fire prevention and extinguishing control components of a coal mine gas and liquid carbon dioxide fire prevention and extinguishing equipment.

[0017] Figure 4 This is a structural diagram of the liquid carbon dioxide storage component in a coal mine gas liquid carbon dioxide fire extinguishing equipment.

[0018] Figure 5 This is a schematic diagram of the restraint device structure of coal mine gas and liquid carbon dioxide fire extinguishing equipment.

[0019] In the diagram: 1. Lane, 2. Pipeline rack, 3. Fire prevention and extinguishing control component, 3-1. Control component body, 3-2. Carbon dioxide spray outlet, 3-21. Carbon dioxide supply pipe, 3-3. Isolation curtain, 3-31. Isolation curtain mounting base, 3-4. Inflatable side curtain of isolation curtain, 3-41. Inflatable air duct, 3-5. Fire source observation camera, 3-6. Restraint device, 3-61. Control motor, 3-62. Screw, 3-63. Restraint arm, 3-64. Restraint arm shaft, 4. Liquid carbon dioxide storage component, 4-1. Main carbon dioxide supply pipe, 4-2. Liquid carbon dioxide storage component body, 4-3. Liquid carbon dioxide weigher, 4-4. Liquid carbon dioxide storage bottle, 5. Sensor. Detailed Implementation

[0020] The following description, in conjunction with the accompanying drawings, describes the coal mine gas liquid carbon dioxide fire extinguishing equipment of this utility model.

[0021] In Embodiment 1 of this application, as Figures 1 to 3As shown, this coal mine gas liquid carbon dioxide fire prevention and extinguishing equipment (hereinafter referred to as "this invention") includes a roadway 1, a pipeline frame 2, a fire prevention and extinguishing control component 3, a control component body 3-1, a carbon dioxide spray outlet 3-2, a carbon dioxide supply pipe 3-21, an isolation curtain 3-3, an isolation curtain mounting base 3-31, an inflatable side curtain of the isolation curtain 3-4, an inflatable air duct 3-41, a fire source observation camera 3-5, a liquid carbon dioxide storage component 4, a carbon dioxide main supply pipe 4-1, a liquid carbon dioxide storage component body 4-2, a liquid carbon dioxide weighing device 4-3, a liquid carbon dioxide storage bottle 4-4, and a sensor 5. The pipeline frame 2 is fixedly installed on the side wall of the roadway 1, and the fire prevention and extinguishing control component 3 is fixedly installed on the roof of the roadway 1. The fire prevention and extinguishing control component 3 is connected to the liquid carbon dioxide storage component 4 through pipelines. The liquid carbon dioxide storage component 4 is installed in the roadway 1 through a bracket. The system includes a sensor 5, a control unit integrated inside the fire prevention and extinguishing control component 3, and carbon dioxide spray outlets 3-2 evenly spaced at the front of the control component body 3-1. The carbon dioxide spray outlets 3-2 are connected to the liquid carbon dioxide storage component 4 via carbon dioxide supply pipes 3-21 and pipelines. The top of the isolation curtain 3-3 is fixedly connected inside the control component body 3-1 via an isolation curtain mounting base 3-31. Inflatable side curtains 3-4 are fixedly installed on both sides of the isolation curtain 3-3. The air ducts on the pipeline rack 2 are connected to the inflatable air ducts 3-41 via pipelines. The inflatable air ducts 3-41 are connected to the inflatable side curtains 3-4 of the isolation curtain. Fire source observation cameras 3-5 are installed at both the front and rear of the control component body 3-1. The control unit inside the control component body 3-1 is connected to the network cable on the pipeline rack 2 via wiring and a router. A restraint device 3-6 is installed at the lower opening of the control component body 3-1 to restrain the isolation curtain 3-3.

[0022] The utility model patent CN214660315U describes a multi-functional vaporizer for fire prevention and extinguishing in coal mines (hereinafter referred to as "the patent"). While the patent can extinguish fires using various methods, its structure is relatively complex, resulting in high production and deployment costs, complicated installation, and inconvenient use. In contrast, this invention deploys a fire prevention and extinguishing control component 3 that can temporarily close the roadway in fire-prone areas. A liquid carbon dioxide storage component 4 then uses the fire prevention and extinguishing control component 3 to flush carbon dioxide into the fire zone, thereby reducing the oxygen content in the zone and achieving the purpose of fire prevention and extinguishing. This effectively reduces structural complexity. Furthermore, the systems at each location are independent of each other, effectively improving the overall safety of the mine.

[0023] This second embodiment is basically the same in structure as the first embodiment, the difference being that, as Figure 4 and Figure 5As shown, the liquid carbon dioxide storage assembly 4 includes a main carbon dioxide supply pipe 4-1, a liquid carbon dioxide storage assembly body 4-2, a liquid carbon dioxide weighing device 4-3, and a liquid carbon dioxide storage bottle 4-4. A sealing door is provided on the front surface of the liquid carbon dioxide storage assembly body 4-2. The liquid carbon dioxide storage bottle 4-4 is installed inside the sealing door through the liquid carbon dioxide weighing device 4-3. The liquid carbon dioxide storage bottle 4-4 is connected to the main carbon dioxide supply pipe 4-1 through a solenoid valve and a pipeline. The main carbon dioxide supply pipe 4-1 is connected to the carbon dioxide supply pipe 3-21 through a pipeline. In order to enable the isolation curtain 3-3 to be lowered in time when needed, the restraint device 3-6 includes a control motor 3-61, a screw 3-62, a restraint arm 3-63 and a restraint arm shaft 3-64. The restraint arm 3-63 is installed inside the control component body 3-1 through the restraint arm shaft 3-64. The control motor 3-61 is fixedly installed on the other side of the control component body 3-1. The screw 3-62 at the bottom of the control motor 3-61 is screwed into the pre-set screw hole of the restraint arm 3-63. The restraint arm 3-63 is made of plastic.

[0024] To further optimize the working efficiency of this application and enhance the independent operation capability of the equipment, the liquid carbon dioxide storage component body 4-2 has a built-in backup battery pack. To ensure the stable function of the isolation curtain 3-3 and prevent flame damage to it, spray heads are installed at the front and rear of the control component body 3-1, and the spray heads are connected to the water supply pipe on the pipeline rack 2 via pipelines and solenoid valves. To further enhance social security sensing capabilities, the sensor 5 is a gas sensor or a smoke sensor.

[0025] When in use, install the coal mine gas liquid carbon dioxide fire extinguishing equipment and connect the corresponding pipelines to the pipeline rack 2 equipment to put it into operation.

[0026] When this utility model is used, its specific operation is as follows:

[0027] In use, the isolation curtain 3-3 is rolled up into the control component body 3-1 and secured by the restraint device 3-6. The sensor 5 and the fire source observation camera 3-5 continuously monitor the fire situation within the section and transmit the data to the dispatch room in a timely manner via the controller and network cable within the control component body 3-1. When a fire is detected, the data is sent to the dispatch room. If the dispatch room responds within ten seconds, the system can operate according to the instructions. If there is no response from the dispatch room within ten seconds, the equipment will automatically begin fire extinguishing. During fire extinguishing, the two fire prevention and extinguishing control components 3 within the section simultaneously begin operation. The control motor 3-61 of the restraint device 3-6 of the fire prevention and extinguishing control component 3 drives the screw 3-62 to rotate, causing it to disengage from the restraint arm 3-63. Because the restraint arm is made of soft plastic, the screw 3-62 will deform slightly when rotating, preventing... Screw 3-62 locks, allowing restraint arm 3-63 to be released. The released restraint arm 3-63 loses its restraint on the isolation curtain 3-3, which then falls and unfolds under gravity. Next, the solenoid valve on the built-in air-filling duct 3-41 opens, allowing air from the compressed air duct to rush into the air-filling side curtain 3-4 of the isolation curtain, causing it to expand and block the side of the tunnel. Simultaneously, the electrically controlled valve of the liquid carbon dioxide storage cylinder 4-4 in the liquid carbon dioxide storage assembly 4 opens, allowing carbon dioxide gas from the liquid carbon dioxide storage cylinder 4-4 to flow along the main carbon dioxide supply pipe 4-1, the pipeline, and the carbon dioxide supply pipe 3-21, spraying it into the section from the carbon dioxide outlet 3-2 for total flooding fire suppression. At the same time, the nozzle also begins spraying water mist to cool the isolation curtain 3-3 and prevent it from catching fire. Because the liquid carbon dioxide storage bottle 4-4 itself has poor thermal insulation, even though it is fully sealed, the liquid carbon dioxide inside will still evaporate and decrease. Therefore, the liquid carbon dioxide weighing device 4-3 can monitor the weight of the liquid carbon dioxide storage bottle 4-4 and automatically alarm to remind the staff to replace the liquid carbon dioxide storage bottle 4-4 when the weight of the liquid carbon dioxide storage bottle 4-4 is lower than the standard value.

[0028] In summary, the coal mine gas liquid carbon dioxide fire prevention and extinguishing equipment of this utility model, by deploying fire prevention and extinguishing control components 3 that can temporarily close the roadway in the fire-prone section, and by having the liquid carbon dioxide storage component 4 flush carbon dioxide into the fire-prone section through the fire prevention and extinguishing control component 3, achieves the purpose of fire prevention and extinguishing by reducing the oxygen content in the section. Since the equipment can automatically monitor the fire-prone section for a long time, it can detect the initial fire source in time and carry out fire prevention and extinguishing operations, which can effectively reduce the fire prevention and extinguishing response time and reduce safety risks.

[0029] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity. Any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. Coal mine gas liquid carbon dioxide fire extinguishing equipment, comprising a roadway (1), a pipeline rack (2) and a sensor (5), the pipeline rack (2) is fixedly installed on the side of the roadway (1), characterized in that, The roadway (1) roof fixed installation prevents fire control assembly (3), fire control assembly (3) is connected by pipeline liquid carbon dioxide storage assembly (4), liquid carbon dioxide storage assembly (4) is installed in the roadway (1) through the support, the side of roadway (1) is provided with inductor (5), the inside of fire control assembly (3) is integrated control machine, the front of the control assembly body (3-1) of fire control assembly (3) is installed at equal intervals carbon dioxide outlet (3-2), carbon dioxide outlet (3-2) is connected by carbon dioxide supply pipe (3-21) and pipeline liquid carbon dioxide storage assembly (4), the inside of control assembly body (3-1) is fixedly connected by the installation seat (3-31) of isolation curtain the top of isolation curtain (3-3), the both sides of isolation curtain (3-3) are fixedly installed isolation curtain inflation side curtain (3-4), the air pipe on pipeline rack (2) is connected by pipeline inflation air pipe (3-41), inflation air pipe (3-41) is connected isolation curtain inflation side curtain (3-4), the front and back of control assembly body (3-1) are provided with fire source observation camera (3-5), the control machine in control assembly body (3-1) is connected by line and router network cable on pipeline rack (2);The lower opening of control assembly body (3-1) is provided with restraint device (3-6) restraint isolation curtain (3-3).

2. The coal mine gas liquid carbon dioxide fire extinguishing equipment according to claim 1, characterized in that, The liquid carbon dioxide storage assembly (4) includes carbon dioxide main supply pipe (4-1), liquid carbon dioxide storage assembly body (4-2), liquid carbon dioxide scale (4-3) and liquid carbon dioxide storage bottle (4-4), the front surface of liquid carbon dioxide storage assembly body (4-2) is provided with sealing door, the inside of sealing door is installed liquid carbon dioxide storage bottle (4-4) through liquid carbon dioxide scale (4-3), liquid carbon dioxide storage bottle (4-4) is connected by solenoid valve and pipeline carbon dioxide main supply pipe (4-1), carbon dioxide main supply pipe (4-1) is connected by pipeline carbon dioxide supply pipe (3-21).

3. The coal mine gas liquid carbon dioxide fire extinguishing equipment according to claim 2, characterized in that, The liquid carbon dioxide storage assembly body (4-2) is built-in spare battery pack.

4. The coal mine gas liquid carbon dioxide fire extinguishing equipment according to claim 1, characterized in that, The front and back of control assembly body (3-1) are installed spray head respectively, and the spray head is connected by pipeline and solenoid valve water supply pipe on pipeline rack (2).

5. The coal mine gas liquid carbon dioxide fire extinguishing equipment according to claim 4, characterized in that, The inductor (5) is a gas inductor or a smoke inductor.

6. The coal mine gas liquid carbon dioxide fire extinguishing equipment according to claim 1, characterized in that, The restraint device (3-6) includes control motor (3-61) and restraint arm pivot (3-64), restraint arm (3-63) is installed inside control assembly body (3-1) through restraint arm pivot (3-64), control motor (3-61) is fixedly installed on the other side of control assembly body (3-1), the screw rod (3-62) of control motor (3-61) lower part is screwed into the preset screw hole of restraint arm (3-63), and the restraint arm (3-63) is made of plastic.

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