Automatic fire extinguishing system for underground explosion-proof area of coal mine
By introducing multiple detectors and multiple start-up methods into the underground automatic fire extinguishing system of coal mines, the problem of inaccurate identification of fires in complex environments is solved, and more efficient fire detection and precise fire extinguishing are achieved.
Patent Information
- Application Number
- CN202420464010.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-11
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-03-11
AI Technical Summary
The existing underground automatic fire extinguishing system of coal mines cannot accurately identify fires in complex environments because a single detector cannot accurately identify fires, resulting in frequent false alarms and missed reports, and it cannot adapt to multiple fire protection areas, which affects the accuracy of fire extinguishing and system reliability.
It adopts a variety of detector combinations, including linear temperature detectors, temperature sensors, smoke sensors, infrared thermal imaging sensors and flame sensors, combining automatic, manual and mechanical start methods to achieve multiple fire detection and flexible response to complex environments.
It improves the accuracy of fire detection, reduces false alarms and missed reports, ensures effective start of fire extinguishing systems in complex environments, protects multiple fire protection areas, and reduces economic losses.
Smart Images
Figure CN223170219U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coal mine safety production emergency rescue systems, and specifically relates to an explosion-proof type area automatic fire extinguishing system for coal mine underground. Background Art
[0002] At present, the detectors of the existing automatic fire extinguishing systems for coal mine underground only adopt a single detector, and the fire extinguishing system is only activated when the temperature reaches a fixed temperature value. It cannot accurately reflect the occurrence of a fire under the conditions of high dust, high humidity and complex temperature, and may cause the inaction or mis-spray of the fire extinguishing system. The fire extinguishing accuracy performance is relatively lagging. And it is greatly affected by external factors and can only be used in specific places and cannot be used in complex places.
[0003] The existing automatic fire extinguishing system mainly consists of structures such as a temperature detector, a detection line, a controller, a chemical agent pipeline, a nozzle, a chemical agent bottle, a solenoid valve, a start valve, an audible and visual alarm, a manual button and a pressure gauge. Its working principle is: detecting the temperature through a single temperature fire detector (constant temperature type). When the temperature value reaches the fixed temperature value, the detector gives a relatively simple fire extinguishing signal to the on-site control unit to activate the fire extinguishing system.
[0004] The disadvantages of the existing automatic fire extinguishing system are as follows:
[0005] ① The single detector can only realize the detection of one function among smoke, temperature or flame. The detection function is not powerful enough and the detection efficiency is relatively low.
[0006] ② The components of the single detector age, reducing the service life of the detector, and false alarms and missed alarms occur.
[0007] ③ The single detector cannot accurately identify the occurrence of a fire under complex on-site conditions, and false alarms and missed alarms occur.
[0008] ④ The protection area of the single detector is limited and it cannot protect multiple fire prevention areas.
[0009] ⑤ The single detector is too affected by external factors, resulting in insufficient detection effect.
[0010] ⑥ When the single detector is damaged, the fire extinguishing system fails, causing greater economic losses.
[0011] Therefore, if a system with two or more types of fire detectors, which can be flexibly matched, has a high accuracy in identifying fires and realizes precise automatic fire extinguishing, is a technical problem urgently to be solved by those skilled in the art. Content of the Utility Model
[0012] In view of the above, the purpose of the present utility model is to provide an explosion-proof regional automatic fire extinguishing system for coal mines underground in view of the deficiencies of the prior art. The system includes: a mine intrinsically safe regional intelligent alarm and fire extinguishing control box, a first detection component, a second detection component, and a medicine bottle valve group that are electrically connected to the mine intrinsically safe regional intelligent alarm and fire extinguishing control box, and a release pipeline connected to the output end of the medicine bottle valve group. A plurality of medicine nozzles are arranged on the release pipeline, and the fire extinguishing areas of the plurality of medicine nozzles cover the explosion-proof areas in coal mines underground; wherein,
[0013] The first detection component includes multiple groups of detectors and a linear temperature sensor arranged in the explosion-proof area in coal mines underground; the linear temperature sensor is laid in an S shape on the wall in coal mines underground, and each group of detectors includes an intrinsically safe temperature sensor, a PT contact temperature detector, and an intrinsically safe smoke sensor;
[0014] The second detection component is arranged above the explosion-proof area in coal mines underground, and the second detection component includes an intrinsically safe infrared thermal imaging sensor and an intrinsically safe flame sensor.
[0015] In some embodiments, in the explosion-proof regional automatic fire extinguishing system for coal mines underground, the medicine bottle valve group includes a medicine bottle body storing fire extinguishing medicine and a valve body assembly arranged at the output end of the medicine bottle body. The valve body assembly includes a valve body and a mine intrinsically safe electric ball valve;
[0016] The valve body includes a micropore communicating with the inside of the medicine bottle body, a piston arranged at the output end of the micropore, a return spring abutted against the upper part of the piston, an upper cavity of the valve body, a second self-locking nut, and a release pipeline interface arranged opposite to the piston; the piston includes a first working position abutted against the output end of the micropore and a second working position far from the output end of the micropore. When the piston is at the second working position, the release pipeline interface is communicated with the output end of the medicine bottle body; a mine intrinsically safe electric ball valve interface is opened on the upper cavity of the valve body;
[0017] The mine intrinsically safe electric ball valve includes a ball valve coil electrically connected to the intrinsically safe control box, a ball valve stem, and a ball valve ball arranged at the lower part of the ball valve stem. The ball valve ball is arranged at the mine intrinsically safe electric ball valve interface; the ball valve ball includes a third working position for closing the mine intrinsically safe electric ball valve interface and a fourth working position for opening the mine intrinsically safe electric ball valve interface.
[0018] In some embodiments, in the explosion-proof regional automatic fire extinguishing system for coal mines underground, an intrinsically safe distribution box connected to the mine intrinsically safe regional intelligent alarm and fire extinguishing control box is further included, and the first detection component and the second detection component are connected to the output end of the intrinsically safe distribution box.
[0019] In some embodiments, in the explosion-proof area automatic fire extinguishing system in coal mines, the valve body assembly includes a pressure gauge, a mechanical emergency start system, and a first self-locking nut.
[0020] In some embodiments, in the explosion-proof area automatic fire extinguishing system in coal mines, the system further includes a start feedback device arranged at the output end of the reagent bottle body, and the start feedback device is electrically connected to the mine intrinsically safe area intelligent alarm fire extinguishing control box.
[0021] In some embodiments, in the explosion-proof area automatic fire extinguishing system in coal mines, a release switch is arranged on the release pipeline.
[0022] In some embodiments, in the explosion-proof area automatic fire extinguishing system in coal mines, the system further includes an intrinsically safe sound and light alarm, which is electrically connected to the intrinsically safe control box.
[0023] In some embodiments, in the explosion-proof area automatic fire extinguishing system in coal mines, the system further includes an intrinsically safe manual button switch, which is electrically connected to the intrinsically safe control box.
[0024] In some embodiments, in the explosion-proof area automatic fire extinguishing system in coal mines, the reagent bottle valve group further includes a bottle support sleeved outside the reagent bottle body.
[0025] In some embodiments, in the explosion-proof area automatic fire extinguishing system in coal mines, the reagent bottle body stores fire extinguishing agent.
[0026] The beneficial effects of the present utility model are as follows:
[0027] 1. The present utility model discloses an explosion-proof area automatic fire extinguishing system in coal mines. Linear temperature detectors, intrinsically safe temperature sensors, PT contact temperature detectors, intrinsically safe smoke sensors, intrinsically safe infrared thermal imaging sensors, and intrinsically safe flame sensors are used for fire detection. Multiple detection methods are used flexibly in combination to improve the detection accuracy; multiple detection methods solve the problem that a single detector fails and the fire extinguishing system cannot be started. At the same time, dual / multiple judgment logics can be applied to various complex sites to prevent false alarms and missed alarms.
[0028] 2. The present utility model discloses an explosion-proof area automatic fire extinguishing system in coal mines, which has multiple start modes and can start the fire extinguishing system in the ways of automatic start by a detector, manual start, and mechanical emergency start, so as to timely discover fire hidden dangers and deal with fire hazards as early as possible and as quickly as possible. Description of the Drawings
[0029] Figure 1 It is a schematic structural diagram of the explosion-proof area automatic fire extinguishing system in coal mines described in the present utility model;
[0030] Figure 2 Schematic diagram of the structure of the reagent bottle valve group in the explosion-proof type area automatic fire extinguishing system for coal mines underground of the present utility model;
[0031] Figure 3 Schematic diagram of the structure of the valve body assembly in the reagent bottle valve group of the explosion-proof type area automatic fire extinguishing system for coal mines underground of the present utility model.
[0032] In the figure: 1-intrinsic safety type audible and visual alarm, 2-linkage start signal module, 3-passive signal feedback signal module, 4-mining intrinsic safety and flameproof stabilized DC power supply, 5-intrinsic safety type manual pushbutton switch, 6-mining intrinsic safety type area intelligent alarm and fire extinguishing control box, 7-start feedback device, 8-reagent bottle valve group, 10-mining flame-retardant communication cable, 11-intrinsic safety type distribution box, 12-release switch, 13-release pipeline, 14-reagent nozzle, 15-intrinsic safety type temperature sensor, 16-PT contact type temperature detector, 17-intrinsic safety type smoke sensor, 18-linear temperature detector, 19-intrinsic safety type infrared thermal imaging sensor, 20-intrinsic safety type flame sensor, 801-bottle holder, 802-reagent bottle body, 803-valve body, 804-mining intrinsic safety type electric ball valve, 805-mechanical emergency start system, 806-first self-locking nut, 807-release pipeline interface, 808-pressure gauge, 80301-upper cavity of the valve body, 80302-reset spring, 80303-micropore, 80304-second self-locking nut, 80305-piston, 80401-ball valve coil, 80402-ball valve stem, 80403-ball valve ball. Specific embodiments
[0033] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model.
[0034] As Figures 1 to 3 shown, an explosion-proof type area automatic fire extinguishing system for coal mines underground includes: a mining intrinsic safety type area intelligent alarm and fire extinguishing control box 6, a first detection component, a second detection component and a reagent bottle valve group 8 electrically connected to the mining intrinsic safety type area intelligent alarm and fire extinguishing control box 6, and a release pipeline 13 connected to the output end of the reagent bottle valve group 8. A plurality of reagent nozzles 14 are arranged on the release pipeline 13, and the fire extinguishing areas of the plurality of reagent nozzles 14 cover the explosion-proof type area for coal mines underground; wherein,
[0035] The first detection component includes multiple groups of detectors and a linear temperature detector 18 arranged in the explosion-proof area underground in a coal mine; the linear temperature detector 18 is laid in an S shape on the wall underground in the coal mine, and each group of detectors includes an intrinsically safe temperature sensor 15, a PT contact temperature detector 16, and an intrinsically safe smoke sensor 17.
[0036] The second detection component is arranged above the explosion-proof area underground in the coal mine, and the second detection component includes an intrinsically safe infrared thermal imaging sensor 19 and an intrinsically safe flame sensor 20.
[0037] In the automatic fire extinguishing system for the explosion-proof area underground in the coal mine of the present utility model, the first detection component serves as the first-stage detection system, and the second detection component serves as the second-stage detection system. The first-stage detection system and the second-stage detection system can be freely matched according to the on-site situation without any restrictions.
[0038] Working principle: When a fire breaks out in the on-site protection area, the flame emits a huge amount of heat. The first detection component installed near the fire source is baked by the flame. When the temperature rises to the set value, a signal is sent back to the mine intrinsically safe area intelligent alarm and fire extinguishing control box 6. After the mine intrinsically safe area intelligent alarm and fire extinguishing control box 6 judges and receives the fire signal, it will transmit the signal to the intrinsically safe sound and light alarm 1 to issue a fire warning signal, reminding the staff to evacuate. When the second detection component detects the occurrence of a fire, it also sends a signal back to the mine intrinsically safe area intelligent alarm and fire extinguishing control box 6. After the mine intrinsically safe area intelligent alarm and fire extinguishing control box 6 receives the fire signal, it will transmit the signal to the intrinsically safe sound and light alarm 1 to issue a fire alarm signal. After a delay of 30S (the time can be set), the mine intrinsically safe area intelligent alarm and fire extinguishing control box 6 will output a signal to open the mine intrinsically safe electric ball valve 804, so that the internal pressure in the upper cavity 80301 of the valve body will be quickly released through the mine intrinsically safe electric ball valve 804, and will be reduced by 50% in a short time (less than 1S). A pressure difference is formed between the medicine bottle body 802 and the upper cavity 80301 of the valve body, causing the piston 80305 in the valve body 803 to move upward, opening the release pipeline interface 807. The fire extinguishing agent is transported to the protected area through the release pipeline 13 under the action of the self-pressure inside the medicine bottle and is sprayed through the medicine nozzle to complete the entire fire extinguishing process. A linkage start signal module 2, a passive signal feedback signal module 3, and a mine intrinsically safe and flameproof regulated DC power supply 4 are arranged on the mine intrinsically safe area intelligent alarm and fire extinguishing control box 6. While opening the mine intrinsically safe electric ball valve 804, the linkage start signal module 2 outputs a linkage start signal to link the start and stop of on-site equipment. At the same time, a start feedback device 7 is arranged at the output end of the medicine bottle body 802. The start feedback device 7 sends a signal in the background to remind the monitoring personnel that the state of the fire extinguishing system has changed, and the release pipeline 13 releases the fire extinguishing agent to extinguish the fire.
[0039] In the above solution, the medicine bottle valve group 8 includes a medicine bottle body 802 storing a fire extinguishing agent and a valve body assembly arranged at the output end of the medicine bottle body 802. The valve body assembly includes a valve body 803 and a mine intrinsically safe type electric ball valve;
[0040] The valve body 803 includes a micropore 80303 communicating with the inside of the medicine bottle body 802, a piston 80305 arranged at the output end of the micropore 80303, a return spring 80302 abutted against the upper part of the piston 80305, a valve body upper cavity 80301, a second self-locking nut 80304, and a release pipeline interface 807 arranged opposite to the piston 80305. The piston 80305 includes a first working position abutted against the output end of the micropore 80303 and a second working position far from the output end of the micropore 80303. When the piston 80305 is at the second working position, the release pipeline interface 807 communicates with the output end of the medicine bottle body 802. A mine intrinsically safe type electric ball valve interface is opened on the valve body upper cavity 80301;
[0041] The mine intrinsically safe type electric ball valve includes a ball valve coil 80401 electrically connected to the intrinsically safe type control box, a ball valve stem 80402, and a ball valve ball 80403 arranged at the lower part of the ball valve stem 80402. The ball valve ball 80403 is arranged at the mine intrinsically safe type electric ball valve interface. The ball valve ball 80403 includes a third working position for closing the mine intrinsically safe type electric ball valve interface and a fourth working position for opening the mine intrinsically safe type electric ball valve interface.
[0042] In the above solution, the system further includes an intrinsically safe type distribution box 11 connected to the mine intrinsically safe type area intelligent alarm and fire extinguishing control box 6. The first detection component and the second detection component are connected to the output end of the intrinsically safe type distribution box 11.
[0043] In the above solution, the valve body assembly includes a pressure gauge 808, a mechanical emergency start system 805, and a first self-locking nut 806.
[0044] In the above solution, a release switch 12 is arranged on the release pipeline 13.
[0045] In the above solution, the system further includes an intrinsically safe type audible and visual alarm 1, which is electrically connected to the intrinsically safe type control box.
[0046] In the above solution, the system further includes an intrinsically safe type manual push-button switch 5, which is electrically connected to the intrinsically safe type control box.
[0047] In the above solution, the medicine bottle valve group 8 further includes a bottle support 801 sleeved outside the medicine bottle body 802.
[0048] In the above solution, a fire extinguishing agent is stored in the medicine bottle body 802.
[0049] The connection and steps of each component in the explosion-proof type regional automatic fire extinguishing system for coal mines underground of the present utility model:
[0050] 1. Installation of the intrinsically safe type regional intelligent alarm and fire extinguishing control box 6 for coal mines
[0051] Determine the installation position of the intrinsically safe type regional intelligent alarm and fire extinguishing control box 6 according to the on-site situation, which should be convenient for taking power, monitoring, and operation. Then, after installing and fixing it firmly, connect it to the coal mine power supply.
[0052] 2. Installation of the medicine bottle valve group 8, the medicine release pipeline 13, and the spray nozzles
[0053] Install a intrinsically safe type electric ball valve 804 at the medicine bottle valve group 8, then fix the medicine bottle body 802 in the bottle holder 801, and install and fix the bottle holder 801 at the designed position. Connect the start feedback device 7 and the intrinsically safe type electric ball valve 804 to the intrinsically safe type regional intelligent alarm and fire extinguishing control box 6 with a flame-retardant communication cable 10 for coal mines. Install the medicine spray nozzles evenly according to the protected area. After adjusting the angles of the nozzles, connect them firmly to the medicine release pipeline 13. After fixing the fire extinguishing agent release pipeline 13 firmly, connect it to the release pipeline interface 807 through a nut. Connect the release switch 12 to the fire extinguishing host control box with a flame-retardant communication cable 10 for coal mines.
[0054] 3. Laying the detection part
[0055] The intrinsically safe type temperature sensor 15, the PT contact type temperature detector 16, and the intrinsically safe type smoke sensor 17 are arranged evenly according to the protected area. The linear temperature detector 18 is distributed in an "S" shape at the upper part of the protected area. The intrinsically safe type infrared thermal imaging sensor 19 and the intrinsically safe type flame sensor 20 are installed about 5 meters above the protected area. After installation and adjusting the protection angles, connect them to the fire extinguishing host control box with a flame-retardant communication cable 10 for coal mines.
[0056] 4. Manual start device and output signal part
[0057] Install the intrinsically safe type audible and visual alarm 1 and the intrinsically safe type manual start switch at a position where people can easily observe and operate (such as the entrance of the chamber) and fix them firmly. Connect the intrinsically safe type audible and visual alarm 1 and the intrinsically safe type manual start switch to the fire extinguishing host control box with a flame-retardant communication cable 10 for coal mines. Connect the passive signal feedback signal module 3 to the background monitoring computer, hand over the linkage start signal module 2 to the person in charge of the coal mine site, and connect the linkage start equipment.
[0058] 5. Loosen the second self-locking nut 80304 at the connection of the start feedback device 7 counterclockwise by 60° - 90°, and use the internal pressure of the medicine bottle to open the start feedback device 7. Under normal conditions, the start feedback device 7 is in a normally open state;
[0059] 6. Simulate an electric start test. After the device is normally powered on, first remove the intrinsically safe electric ball valve signal power cord, give a false signal to the fire detection device, and check whether there is a voltage signal output at the terminal block of the intrinsically safe electric ball valve and whether the intrinsically safe sound and light alarm 1 alarms. At this time, the intrinsically safe sound and light alarm 1 on site gives out sound and light alarms, and at the same time, there is a voltage signal output at the terminal block of the intrinsically safe electric ball valve. The linkage devices stop rotating at the same time, and the passive signal feedback signal module 3 has a voltage signal, proving that the start function of the device is normal;
[0060] Through the above 6 steps, the connection and installation of the entire system are completed. Then the engineering personnel debug and run the test on the system to ensure that all components of the system are installed in place and function properly.
[0061] The explosion-proof type regional automatic fire extinguishing system for coal mines described in the present utility model includes the following start-up methods:
[0062] 1. Automatic start: When a fire occurs and the temperature reaches the set temperature of a detection device, the signal is sent back to the mine intrinsically safe type regional intelligent alarm and fire extinguishing control box 6. After receiving the fire signal, the mine intrinsically safe type regional intelligent alarm and fire extinguishing control box 6 will transmit the signal to the intrinsically safe sound and light alarm 1 to issue a fire warning signal, reminding the staff to evacuate. When the second-stage detection devices (19, 20) detect the occurrence of a fire, the signal is also sent back to the mine intrinsically safe type regional intelligent alarm and fire extinguishing control box 6. After receiving the fire signal, the mine intrinsically safe type regional intelligent alarm and fire extinguishing control box 6 will transmit the signal to the intrinsically safe sound and light alarm 1 to issue a fire alarm signal. After a delay of 30S (the time can be set), the mine intrinsically safe type regional intelligent alarm and fire extinguishing control box 6 will output a signal to open the mine intrinsically safe electric ball valve 804. The internal pressure in the upper cavity 80301 of the valve body will be quickly released through the mine intrinsically safe electric ball valve 804, decreasing by 50% within a short time (less than 1S). A pressure difference is formed between the medicine bottle body 802 and the upper cavity 80301 of the valve body, causing the piston 80305 in the valve body 803 to move upward, opening the release pipeline interface 807. The fire extinguishing agent is transported to the protected area through the release pipeline 13 under the action of the self-pressure inside the medicine bottle and is sprayed through the medicine nozzle to complete the entire fire extinguishing process. When opening the mine intrinsically safe electric ball valve 804, the linkage start signal module 2 outputs a linkage start signal to control the start and stop of the on-site equipment. The start feedback device 7 sends a signal in the background to remind the monitoring personnel that the state of the fire extinguishing device has changed, opens the release switch 12, and the release pipeline 13 sprays the fire extinguishing agent to extinguish the fire.
[0063] 2. Manual startup: When on-site personnel discover an abnormality in the protected area and the fire is in its initial stage and this device has not been automatically started yet, to prevent the fire from spreading, personnel can also manually start this set of fire extinguishing devices through the intrinsically safe manual pushbutton switch 5. After a delay of 30S (the time can be set), the intrinsically safe area intelligent alarm and fire extinguishing control box 6 for mine use will output a signal to open the intrinsically safe electric ball valve 804 for mine use. The internal pressure in the upper cavity 80301 of the valve body will be quickly released through the intrinsically safe electric ball valve 804 for mine use and will decrease by 50% within a short time (less than 1S). A pressure difference will be formed between the inside of the medicine bottle 802 and the upper cavity 80301 of the valve body, causing the piston 80305 in the valve body 803 to move upward, opening the release pipeline interface 807. The fire extinguishing agent will be transported to the protected area through the release pipeline 13 under the action of its own internal pressure in the medicine bottle and will be sprayed through the medicine nozzle, completing the entire fire extinguishing process. While opening the intrinsically safe electric ball valve 804 for mine use, a linkage startup signal will be output to link the startup and stop of on-site equipment. The output startup feedback device 7 will send a signal in the background to remind the monitoring personnel that the state of the fire extinguishing device has changed, and the release switch 12 will be opened, and the fire extinguishing agent will be ejected through the release pipeline 13 to extinguish the fire.
[0064] 3. Mechanical emergency startup: When on-site personnel discover the initial fire and are relatively close to the mechanical emergency startup device, quickly pull out the safety pin on the emergency startup device and press the emergency startup button forcefully. The internal pressure in the upper cavity 80301 of the valve body will be relieved through the mechanical emergency device and will decrease by 50% within a short time (less than 1S). A pressure difference will be formed between the inside of the medicine bottle 802 and the upper cavity 80301 of the valve body, causing the piston 80305 in the valve body 803 to move upward, opening the release pipeline interface 807. The fire extinguishing agent will be transported to the protected area through the release pipeline 13 under the action of its own internal pressure in the medicine bottle and will be sprayed through the medicine nozzle, completing the entire fire extinguishing process. While opening the intrinsically safe electric ball valve 804 for mine use, a linkage startup signal will be output to link the startup and stop of on-site equipment. The output startup feedback device 7 will send a signal in the background to remind the monitoring personnel that the state of the fire extinguishing device has changed, and the release switch 12 will be opened, and the fire extinguishing agent will be ejected through the release pipeline 13 to extinguish the fire.
[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not restrictive. Any other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention, as long as they do not depart from the spirit and scope of the technical solutions of the present invention, shall be covered by the scope of the claims of the present invention.
Claims
1. An explosion-proof type regional automatic fire extinguishing system for underground coal mines, characterized in that, Comprising: A mine intrinsically safe area intelligent alarm and fire extinguishing control box (6), a first detection component, a second detection component and a reagent bottle valve group (8) electrically connected to the mine intrinsically safe area intelligent alarm and fire extinguishing control box (6), and a release pipeline (13) connected to the output end of the reagent bottle valve group (8). A plurality of reagent nozzles (14) are provided on the release pipeline (13), and the fire extinguishing areas of the plurality of reagent nozzles (14) cover the explosion-proof areas underground in coal mines; wherein, The first detection component includes multiple groups of detectors and a linear temperature detector (18) arranged in the explosion-proof areas underground in coal mines; the linear temperature detector (18) is laid in an S shape on the walls underground in coal mines, and each group of detectors includes an intrinsically safe temperature sensor (15), a PT contact temperature detector (16) and an intrinsically safe smoke sensor (17); The second detection component is arranged above the explosion-proof areas underground in coal mines, and the second detection component includes an intrinsically safe infrared thermal imaging sensor (19) and an intrinsically safe flame sensor (20).
2. The explosion-proof type area automatic fire extinguishing system for underground coal mines according to claim 1, characterized in that, The reagent bottle valve group (8) includes a reagent bottle body (802) storing fire extinguishing reagents and a valve body assembly arranged at the output end of the reagent bottle body (802), and the valve body assembly includes a valve body (803) and a mine intrinsically safe electric ball valve (804); The valve body (803) includes a micropore (80303) communicating with the inside of the reagent bottle body (802), a piston (80305) arranged at the output end of the micropore (80303), a return spring (80302) abutted against the upper part of the piston (80305), an upper valve body cavity (80301), a second self-locking nut (80304) and a release pipeline interface (807) arranged opposite to the piston (80305); the piston (80305) includes a first working position abutted against the output end of the micropore (80303) and a second working position away from the output end of the micropore (80303). When the piston (80305) is located at the second working position, the release pipeline interface (807) communicates with the output end of the reagent bottle body (802); a mine intrinsically safe electric ball valve interface is opened on the upper valve body cavity (80301); The mine intrinsically safe electric ball valve (804) includes a ball valve coil (80401) electrically connected to the mine intrinsically safe area intelligent alarm and fire extinguishing control box (6), a ball valve stem (80402) and a ball valve ball (80403) arranged at the lower part of the ball valve stem (80402), and the ball valve ball (80403) is arranged at the mine intrinsically safe electric ball valve interface; the ball valve ball (80403) includes a third working position for closing the mine intrinsically safe electric ball valve interface and a fourth working position for opening the mine intrinsically safe electric ball valve interface.
3. The explosion-proof type area automatic fire extinguishing system for underground coal mines according to claim 2, characterized in that, It further includes an intrinsically safe distribution box (11) connected to the mine intrinsically safe area intelligent alarm and fire extinguishing control box (6), and the first detection component and the second detection component are connected to the output end of the intrinsically safe distribution box (11).
4. The explosion-proof type area automatic fire extinguishing system for underground coal mines according to claim 2, characterized in that, The valve body assembly includes a pressure gauge (808), a mechanical emergency start system (805), and a first self-locking nut (806).
5. The explosion-proof type automatic fire extinguishing system for underground coal mines according to claim 2, wherein, The system further includes a start feedback device (7) disposed at the output end of the chemical agent bottle body (802), and the start feedback device (7) is electrically connected to the mine intrinsically safe area intelligent alarm and fire extinguishing control box (6).
6. The explosion-proof type automatic fire extinguishing system for underground coal mines according to claim 1, wherein A release switch (12) is provided on the release pipeline (13).
7. The explosion-proof type automatic fire extinguishing system for underground coal mines according to claim 1, characterized in that, The system further includes an intrinsically safe sound and light alarm (1), which is electrically connected to the mine intrinsically safe area intelligent alarm and fire extinguishing control box (6).
8. The explosion-proof type automatic fire extinguishing system for underground coal mines according to claim 1, characterized in that, The system further includes an intrinsically safe manual pushbutton switch (5), which is electrically connected to the mine intrinsically safe area intelligent alarm and fire extinguishing control box (6).
9. The explosion-proof type area automatic fire extinguishing system for underground coal mines according to claim 2, characterized in that, The chemical agent bottle valve group (8) further includes a bottle support (801) sleeved outside the chemical agent bottle body (802).
10. The explosion-proof type automatic fire extinguishing system for underground coal mines according to claim 2, wherein, The chemical agent bottle body (802) stores a fire extinguishing agent.