Linkage apparatus for adaptive intelligent coal fire detection and graded disaster suppression

Abstract

A linkage apparatus for adaptive intelligent coal fire detection and graded disaster suppression, which apparatus relates to the technical field of coal mining and storage safety. The linkage apparatus consists of a detection apparatus, a fire suppression apparatus, a linkage control apparatus (5) and a power supply module (6). By means of the collaborative operation of a plurality of sensors combined with an intelligent analysis algorithm, the occurrence and development of coal fires can be comprehensively and accurately detected, thereby improving the accuracy of coal fire detection and reducing the risks of false alarms and missed alarms; targeted fire suppression measures are used on the basis of different grades of coal fires, thereby improving the efficiency of fire suppression, reducing the waste of fire suppression resources, and ensuring that coal fires can be effectively controlled at different stages; and intelligent linkage control among the detection apparatus, the fire suppression apparatus and the linkage control apparatus is realized, so that an entire system has a high degree of automation and a high response speed, thereby reducing manual intervention and improving the operating efficiency and safety.

Description

Adaptive intelligent coal fire detection and disaster grading extinguishing linkage device TECHNICAL FIELD

[0001] The present application relates to the technical field of coal mining and storage safety, in particular to an adaptive intelligent coal fire detection and disaster grading extinguishing linkage device. BACKGROUND

[0002] During the process of coal mining, transportation and storage, coal fire is easily caused due to factors such as self-oxidation and exothermic of coal, poor ventilation, etc. Once the coal fire occurs, it will not only cause a large waste of coal resources, but also cause serious pollution to the surrounding environment, such as releasing a large amount of harmful gases, causing greenhouse effect, etc. At the same time, the coal fire will also pose a threat to mining facilities and personnel safety, which may lead to fire spreading, explosion and other serious accidents.

[0003] At present, the traditional coal fire detection methods mainly include manual inspection and simple temperature sensor monitoring. Manual inspection is inefficient and it is difficult to achieve real-time monitoring, and it is difficult to find the coal fire with strong concealment. The simple temperature sensor monitoring has limited monitoring range and low precision, and cannot accurately determine the occurrence position, development degree and disaster grade of the coal fire.

[0004] In terms of coal fire extinguishing, the existing fire extinguishing system often adopts a single extinguishing method, such as water spray extinguishing or dry powder spray extinguishing, which cannot be targeted according to different disaster grades of coal fire. For example, for the initial coal fire, using large-scale water spray extinguishing not only wastes water resources, but also may cause the quality of coal to decrease; and for large-scale coal fire, simple dry powder spray extinguishing cannot effectively control the fire. SUMMARY

[0005] In view of the above deficiencies in the prior art, the present application provides an adaptive intelligent coal fire detection and disaster grading extinguishing linkage device, which can realize adaptive intelligent coal fire detection and grading extinguishing according to the disaster grade, so as to improve the accuracy of coal fire detection and the effectiveness of fire extinguishing, reduce the loss of coal resources and environmental pollution, and protect the safety of personnel and facilities.

[0006] In order to achieve the above-mentioned application purposes, the technical scheme adopted by the present application is as follows:

[0007] The adaptive intelligent coal fire detection and disaster grading extinguishing linkage device comprises:

[0008] The detection device comprises a temperature sensor with high-precision temperature compensation function, which can accurately measure temperature in complex environment; a gas sensor with rapid gas component identification technology, which can detect various harmful gases in real time; a high-sensitivity smoke sensor, which can quickly capture extremely fine smoke particles; and an infrared thermal imaging sensor with high-resolution image acquisition and thermal imaging analysis function, which is used for omnidirectional monitoring of fire heat distribution;

[0009] The fire extinguishing device comprises a first extinguishing device, a second extinguishing device and a third extinguishing device, the first extinguishing device is an inert gas fire extinguishing device, the second extinguishing device is a dry powder fire extinguishing device, and the third extinguishing device is a spray fire extinguishing device.

[0010] The linkage control device and the power module;

[0011] The detection device, the fire extinguishing device and the power module are respectively electrically connected with the linkage control device, and the linkage control device has a fault self-diagnosis function, which can monitor the running state of itself and each connected device in real time.

[0012] Further, the linkage control system comprises a central control unit, which adopts a multi-core processor to improve the operation speed and data processing capacity; the communication interface supports multiple communication protocols, including but not limited to Wi-Fi, Bluetooth and ZigBee, to realize flexible data transmission; the man-machine interface is equipped with a touch display screen, which is convenient for operators to set parameters and check states.

[0013] Further, the inert gas fire extinguishing device comprises a gas storage tank, a gas pipe, a first electromagnetic valve and a gas outlet, the gas storage tank is made of high-strength alloy steel to ensure pressure resistance, and a pressure monitoring device is arranged inside to feedback the pressure in the gas storage tank in real time; the first electromagnetic valve is connected to the gas pipe, a plurality of uniformly distributed gas outlets are arranged on the gas pipe, and the gas outlets are designed with adjustable angles to adjust the gas injection direction according to actual needs.

[0014] Further, the gas storage tank stores compressed nitrogen, and the purity of nitrogen reaches more than 99.9%, to ensure the fire extinguishing effect.

[0015] Further, the dry powder fire extinguishing device comprises a dry powder pressure tank, a spray pipe, a second electromagnetic valve, a third electromagnetic valve and a spray head, a stirring device is arranged inside the dry powder pressure tank to prevent dry powder from depositing and ensure uniformity of injection; the second electromagnetic valve is arranged at one end of the spray pipe close to the dry powder pressure tank, a plurality of uniformly distributed spray heads are connected to the spray pipe, the third electromagnetic valve is arranged between the spray pipe and the spray head, and the spray head is designed as an atomizing spray head to make the dry powder more evenly diffuse.

[0016] Further, the spray fire extinguishing device comprises a booster pump, a fourth electromagnetic valve, a water pipe and an atomizing nozzle, the booster pump adopts frequency control technology, and water pressure can be adjusted according to actual requirements; the water inlet end of the booster pump is provided with the fourth electromagnetic valve, the water outlet end of the booster pump is communicated with the water pipe, a plurality of atomizing nozzles are uniformly distributed on the water pipe, and the atomizing nozzles have a self-cleaning function to prevent scale blockage.

[0017] Further, the linkage control device establishes a disaster grading model based on support vector machine (SVM) combined with a deep learning algorithm, and according to multi-dimensional parameters such as temperature, gas concentration, smoke concentration and thermal imaging data, the coal fire disaster is divided into three grades: the first grade is the initial coal fire, the second grade is the development period coal fire, and the third grade is the serious period coal fire, and the model has self-learning ability and can continuously optimize the grading accuracy according to actual fire extinguishing data.

[0018] Further, the linkage control device supports CAN bus protocol and is compatible with Modbus protocol to realize interconnection and intercommunication with more external devices.

[0019] Further, the detection device outputs digital and analog signals to the linkage control device, the linkage control device comprehensively analyzes and judges the alarm level according to the received signals, and alarms, and when the set alarm level is reached, the fire extinguishing device is started to extinguish the fire, and a pre-spraying test is carried out before the fire extinguishing device is started to ensure normal operation of the fire extinguishing device.

[0020] Further, the power module comprises a DC12V / 1A power supply, which is electrically connected with the linkage control device, and the power module has overvoltage, overcurrent and short circuit protection functions, and is provided with a backup battery to maintain the device to run for a short time when the main power supply fails.

[0021] The beneficial effects of the present application are:

[0022] Precise detection: multiple sensors work cooperatively, combined with intelligent analysis algorithm, can comprehensively and accurately detect the occurrence and development of coal fire, improve the accuracy of coal fire detection, and reduce the risk of false and missed reports.

[0023] Grading extinguishing: according to different grades of coal fire, targeted fire extinguishing measures are adopted, the fire extinguishing efficiency is improved, the waste of fire extinguishing resources is reduced, and the coal fire can be effectively controlled at different stages.

[0024] Intelligent linkage: the detection device, the fire extinguishing device and the linkage control device realize intelligent linkage control, the whole system has high automation degree, fast response speed, reduces manual intervention, improves work efficiency and safety.

[0025] Remote management: Through the communication interface and the remote monitoring center, remote monitoring and management of the system are realized, which facilitates the management personnel to understand the coal fire situation in time, makes decisions, and improves the management level of coal mining and storage.

[0026] Stable and reliable: The power module provides stable and reliable power support for the system, and each device has perfect protection function, which ensures the stable operation of the system in complex environment. BRIEF DESCRIPTION OF DRAWINGS

[0027] Fig. 1 is a schematic view of the three-dimensional structure of the present application;

[0028] Fig. 2 is a schematic view of the enlarged structure at A in Fig. 1 of the present application;

[0029] Fig. 3 is a block diagram of the adaptive intelligent coal fire detection and disaster grading extinguishing linkage device of the present application.

[0030] Fig. 4 is a working flow chart of the adaptive intelligent coal fire detection and disaster grading extinguishing linkage device of the present application.

[0031] Correspondence table of reference signs:

[0032] 1, temperature sensor; 2, gas sensor; 3, smoke sensor; 4, infrared thermal imaging sensor; 5, linkage control device; 6, power module; 7, inert gas extinguishing device; 8, dry powder extinguishing device; 9, spray extinguishing device; 10, gas storage tank; 11, gas pipe; 12, first electromagnetic valve; 13, gas outlet; 14, dry powder pressure tank; 15, spray pipe; 16, second electromagnetic valve; 17, third electromagnetic valve; 18, spray head; 19, booster pump; 20, fourth electromagnetic valve; 21, water pipe; 22, atomizing spray head. DETAILED DESCRIPTION

[0033] The specific embodiments of the present application will be further described below in conjunction with the accompanying drawings. The same parts are denoted by the same reference numerals.

[0034] It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "in" and "out" refer to the directions towards or away from the geometric center of a particular part.

[0035] In order to make the content of the present application more easily understood, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings of the embodiments of the present application.

[0036] Coal as an important energy resource, in the process of mining, transportation and storage, the occurrence of coal fire is a serious safety hazard. The traditional coal fire detection and extinguishing method has many shortcomings, which is difficult to meet the needs of modern coal industry for safety production and efficient management. The self-adaptive intelligent coal fire detection and disaster grading extinguishing linkage device realizes the accurate detection, grading extinguishing and intelligent linkage control of coal fire through multi-technology integration.

[0037] As shown in FIGS. 1-4, the self-adaptive intelligent coal fire detection and disaster grading extinguishing linkage device is composed of a detection device, an extinguishing device, a linkage control device 5 and a power module 6. The detection device is responsible for collecting various key data of the surrounding environment of coal in real time; the extinguishing device adopts targeted extinguishing strategy according to different grades of coal fire; the linkage control device 5 analyzes and processes the data transmitted by the detection device and issues corresponding instructions to the extinguishing device; the power module 6 provides power guarantee for stable operation of the whole system. The four modules cooperate with each other to form an efficient and intelligent coal fire prevention and control system.

[0038] The detection device includes a temperature sensor 1: a high-precision thermocouple sensor is selected, which can accurately capture the subtle changes of coal temperature. Its working principle is based on the thermoelectric effect. When the temperature changes, the thermocouple will generate a corresponding thermoelectric potential at both ends. By measuring the size of the thermoelectric potential, the temperature value can be accurately known. In the coal storage or mining environment, abnormal temperature rise is often an important signal of coal fire. The high-precision temperature sensor 1 can timely find such temperature change and provide key data for subsequent coal fire judgment

[0039] Gas sensor 2: including carbon monoxide sensor, carbon dioxide sensor, etc. The carbon monoxide sensor is used to monitor the concentration of carbon monoxide in the environment. Its working principle is based on gas sensitivity. When carbon monoxide gas contacts the sensitive material of the sensor, it will cause a change in the electrical conductivity of the material. By detecting this change in electrical conductivity, the concentration of carbon monoxide can be determined. The carbon dioxide sensor uses the non-dispersive infrared principle to measure the concentration of carbon dioxide by using the absorption characteristics of carbon dioxide to specific wavelength infrared light. In the process of coal fire, coal oxidation will release carbon monoxide and carbon dioxide and other gases. The gas sensor 2 can monitor the change of the concentration of these gases in real time, which can assist in judging the development of coal fire.

[0040] Smoke sensor 3: the smoke sensor 3 uses the light scattering principle. When smoke particles enter the detection area of the sensor, they will scatter the emitted light, causing a change in the light intensity received at the receiving end. By detecting this change in light intensity, it can be determined whether there is smoke and the concentration of the smoke. Smoke is one of the direct manifestations of coal fire. The smoke sensor 3 can quickly respond to the generation of smoke and provide timely warning information for coal fire detection.

[0041] Infrared thermal imaging sensor 4: using infrared detector to receive infrared radiation emitted by the object, and convert it into an electrical signal, after signal processing and image reconstruction, generate the thermal image of the object. In the coal area, infrared thermal imaging sensor 4 can scan the large area of coal, intuitively present the temperature distribution of the coal surface and internal, even the potential high temperature area hidden in the coal can be found, which provides strong support for early coal fire detection.

[0042] Each sensor will collect temperature, gas concentration, smoke concentration and other data, which will be sent to the linkage control device 5 through wireless transmission.

[0043] The fire extinguishing device includes a first extinguishing device: inert gas fire extinguishing device 7, which is composed of gas tank 10, gas pipe 11, first electromagnetic valve 12 and gas outlet 13. The gas tank 10 stores compressed nitrogen as the main medium for extinguishing fire. When the coal fire is in the first initial stage, the linkage control device 5 sends a command to open the first electromagnetic valve 12, and the compressed nitrogen flows out of the gas tank 10 and is transported to each gas outlet 13 through the gas pipe 11, and is uniformly released to the coal area.

[0044] Nitrogen is an inert gas that does not support combustion. When a large amount of nitrogen is released into the coal area, it will quickly reduce the oxygen concentration in the area. When the oxygen concentration is reduced to below 12%, the oxidation reaction of coal will be inhibited, thereby achieving the purpose of extinguishing the fire. This extinguishing method has the advantages of no pollution and little effect on the quality of coal, and is particularly suitable for extinguishing early coal fires.

[0045] The second extinguishing device: dry powder fire extinguishing device 8, including dry powder pressure tank 14, spray pipe 15, second electromagnetic valve 16, third electromagnetic valve 17 and spray head 18. Dry powder pressure tank 14 is used to store dry powder extinguishing agent, spray pipe 15 is the channel for dry powder delivery, second electromagnetic valve 16 is installed at the end of spray pipe 15 close to dry powder pressure tank 14, to control the outflow of dry powder, and third electromagnetic valve 17 is installed between spray pipe 15 and spray head 18, to control the dry powder injection of each spray head 18.

[0046] When the coal fire develops to the second stage, the linkage control device 5 starts the dry powder fire extinguishing device 8. The second electromagnetic valve 16 is opened, and the dry powder enters the spray pipe 15 from the dry powder pressure tank 14 under the action of pressure, and then is injected into the coal fire area through each spray head 18. The main component in the dry powder extinguishing agent will decompose at high temperature, and the free radicals generated can interrupt the chain reaction of combustion, thereby achieving the effect of extinguishing the fire. The dry powder injection distance can reach 10-15 meters, which can cover a larger area of coal fire area and effectively control the spread of coal fire.

[0047] The third-level extinguishing device is a spray extinguishing device 9, which is composed of a booster pump 19, a fourth electromagnetic valve 20, a water pipe 21 and atomizing nozzles 22. The fourth electromagnetic valve 20 is installed at the water inlet end of the booster pump 19 and is used to control the inflow of water. The water outlet end is in communication with the water pipe 21, and the water pipe 21 is uniformly distributed with the atomizing nozzles 22.

[0048] For the third-level coal fire in the severe stage, the linkage control device 5 starts the spray extinguishing device 9. The fourth electromagnetic valve 20 is opened, and the water is pressurized under the action of the booster pump 19, and then is transported to the atomizing nozzles 22 through the water pipe 21. The atomizing nozzles 22 atomize the high-pressure water into fine water mist particles. When these water mist particles come into contact with the high-temperature coal fire, they can quickly absorb heat, lower the temperature of the coal, and at the same time, the water mist can also isolate oxygen to a certain extent, thereby achieving efficient fire extinguishing. The flow rate of the water spray can be adjusted according to the size of the coal fire, and the maximum flow rate can reach 500 L / min, so as to meet the fire extinguishing needs of different sizes of coal fires.

[0049] The linkage control device 5 includes a central control unit: a high-performance industrial control computer is used as the central control unit, which has powerful data processing capacity and operation speed. It is responsible for receiving data from the detection device, running a disaster classification model based on support vector machine (SVM), judging the disaster level of the coal fire, and sending corresponding control instructions to the fire extinguishing device according to the judgment result. At the same time, the central control unit is also responsible for managing the running state of the whole system and monitoring the working condition of each device.

[0050] Communication interface: equipped with a communication interface supporting CAN bus protocol. CAN bus has the advantages of high reliability, strong real-time performance and strong anti-interference ability, which can meet the high requirements of data transmission of the system. Through the CAN bus, the central control unit can interact with the detection device, the fire extinguishing device and the remote monitoring center. In addition, it is also equipped with multiple communication interfaces such as Ethernet interface, RS232 interface and RS485 interface to adapt to different communication needs and facilitate connection and data transmission with other devices.

[0051] The power module 6 is electrically connected with the linkage control device 5, which provides stable and reliable power support for the whole system. The power module 6 has overvoltage protection, overcurrent protection and short circuit protection functions, which can effectively prevent damage to the system caused by power failure. In the complex environment of coal mining and storage, stable power supply is the key to the normal operation of the system. The DC12V / 1A power module 6 can meet the power demand of each device in the system, ensuring that the detection device, the fire extinguishing device and the linkage control device 5 can operate stably under various working conditions.

[0052] The working process of the adaptive intelligent coal fire detection and disaster classification and extinguishing linkage device of the present application includes the following steps:

[0053] Data acquisition and transmission: The temperature sensor 1, gas sensor 2, smoke sensor 3 and infrared thermal imaging sensor 4 in the detection device collect data of the environment around the coal in real time and transmit the data to the data processing unit. After the data processing unit pre-processes the data, it sends the data to the central control unit of the linkage control device 5.

[0054] Coal fire grade judgment: After the central control unit receives the data, it runs a disaster grading model based on support vector machine (SVM) to judge the disaster grade of the coal fire according to parameters such as temperature, gas concentration, smoke concentration, etc. The coal fire disaster is divided into three grades: first-grade initial coal fire, second-grade development period coal fire and third-grade severe period coal fire.

[0055] Fire extinguishing device activation: After the coal fire grade is judged, the central control unit sends control instructions to the corresponding fire extinguishing device according to different grades. If it is a first-grade coal fire, the inert gas fire extinguishing device 7 is activated, the first electromagnetic valve 12 is opened, and nitrogen is released for extinguishing; if it is a second-grade coal fire, the dry powder fire extinguishing device 8 is activated, the second electromagnetic valve 16 and the third electromagnetic valve 17 are opened, and dry powder is sprayed for extinguishing; if it is a third-grade coal fire, the spray fire extinguishing device 9 is activated, the fourth electromagnetic valve 20 is opened, and the booster pump 19 is started for water spray extinguishing.

[0056] Real-time monitoring and adjustment: During the extinguishing process, the detection device continuously monitors the coal area and transmits real-time data to the linkage control device 5. The central control unit judges the extinguishing effect according to the real-time data. If it finds that the coal fire has not been effectively controlled or there are signs of rekindling, it will timely adjust the extinguishing strategy, such as increasing the amount of extinguishing material, adjusting the working parameters of the fire extinguishing device, etc., to ensure that the coal fire is completely extinguished.

[0057] Remote monitoring and management: The linkage control device 5 transmits the running state of the system, coal fire detection data, disaster grade, etc. to the remote monitoring center in real time through the communication interface. The management personnel of the remote monitoring center can remotely view the running situation of the system through the monitoring software, remotely control and adjust the parameters of the system, and realize remote management of the coal fire prevention and control work.

[0058] The adaptive intelligent coal fire detection and disaster grading extinguishing linkage device of the present application integrates temperature sensor 1, gas sensor 2, smoke sensor 3 and infrared thermal imaging sensor 4 in the detection device, realizing all-around monitoring of coal fire. The temperature sensor 1 can sensitively capture the temperature change of coal, the gas sensor 2 can monitor the concentration of harmful gases such as carbon monoxide and carbon dioxide in real time, the smoke sensor 3 can quickly detect the generation of smoke, and the infrared thermal imaging sensor 4 can present the temperature distribution of the coal area as a whole. Different types of sensors complement each other's advantages, providing comprehensive and accurate data for coal fire detection.

[0059] The linkage control device 5 establishes a disaster grading model based on a support vector machine (SVM), and accurately grades a coal fire disaster into three grades of an initial stage, a development stage and a serious stage according to parameters such as temperature, gas concentration and smoke concentration collected by multiple sensors. Compared with a traditional simple detection mode, the intelligent grading can more timely and accurately judge a coal fire development stage, and provide a basis for fire extinguishing action.

[0060] The fire extinguishing device adopts differentiated extinguishing measures for different grades of coal fires. When the coal fire is in the initial stage (grade 1), the inert gas fire extinguishing device 7 is started, compressed nitrogen in the gas tank 10 is released through the gas pipe 11 and the gas outlet 13 to reduce the oxygen concentration, thereby inhibiting the coal oxidation reaction from the root, achieving low-cost and high-efficiency fire extinguishing, and minimizing the impact on the quality of coal. When the coal fire develops to grade 2, the dry powder fire extinguishing device 8 plays a role, and the dry powder in the dry powder pressure tank 14 is sprayed to the coal fire area through the spray pipe 15 and the spray head 18 under the control of the second electromagnetic valve 16 and the third electromagnetic valve 17 to block the combustion reaction, and the spray distance and coverage range can effectively deal with a larger area of coal fire. For the serious stage of grade 3 coal fire, the booster pump 19 of the spray fire extinguishing device 9 raises the water pressure, and fine water mist is sprayed out through the atomizing spray head 22 to quickly reduce the temperature of the coal, thereby achieving high-efficiency fire extinguishing.

[0061] The grading fire extinguishing mode fully considers the characteristics of coal fires at different stages, ensures that the most effective fire extinguishing means can be taken at each stage, greatly improves the fire extinguishing success rate, and ensures the safety of the coal storage and mining area.

[0062] The detection device, the fire extinguishing device and the power module 6 are electrically connected with the linkage control device 5, and the automatic operation of the system is realized. The detection device collects data in real time and outputs a switching value signal to the linkage control device 5, the linkage control device 5 judges the alarm level according to the signal, and automatically starts the corresponding fire extinguishing device when the set alarm level is reached, without the need for excessive manual intervention, thereby improving the response speed and work efficiency.

[0063] The central control unit of the linkage control system can transmit the running state of the device, coal fire detection data, disaster grade and other information in real time through the communication interface supporting the CAN bus protocol. The management personnel can remotely monitor the equipment operation condition by means of the man-machine interface, and can also adjust parameters and control the equipment, thereby realizing remote management, greatly facilitating the operation, and improving the safety and management level of coal mining and storage.

[0064] The power module 6 is electrically connected with the linkage control device 5 by using a DC 12V / 1A power supply, thereby providing stable and reliable power support for the whole system, ensuring that the detection device, the fire extinguishing device and the linkage control device 5 can normally operate in various complex environments, and guaranteeing the stability and reliability of the system

[0065] On the one hand, the accurate detection and grading fire extinguishing avoids the resource waste caused by excessive fire extinguishing, reduces unnecessary consumption of fire extinguishing materials such as nitrogen, dry powder, water and the like; on the other hand, the automation and remote control reduce the artificial inspection and operation cost, improve the work efficiency, and save a large amount of cost for the coal enterprise in the long term.

[0066] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An adaptive intelligent coal fire detection and disaster grading extinguishing linkage device, characterized in that, The utility model relates to a fire extinguishing system, including: a detection device including a temperature sensor (1) with high-precision temperature compensation function, a gas sensor (2) with rapid gas composition identification technology, a high-sensitivity smoke sensor (3), and an infrared thermal imaging sensor (4) with high-resolution image acquisition and thermal imaging analysis function; a fire extinguishing device including a first-level extinguishing device, a second-level extinguishing device, and a third-level extinguishing device, the first-level extinguishing device being an inert gas fire extinguishing device (7), the second-level extinguishing device being a dry powder fire extinguishing device (8), and the third-level extinguishing device being a spray fire extinguishing device (9); a linkage control device (5) and a power module (6); the detection device, the fire extinguishing device, and the power module (6) are electrically connected to the linkage control device (5) respectively.

2. The self-adapting intelligent coal fire detection and disaster grading extinguishing linkage device according to claim 1, characterized in that: The linkage control system includes a central control unit, which adopts a multi-core processor; the communication interface supports multiple communication protocols, including Wi-Fi, Bluetooth, and ZigBee; and the human-computer interaction interface is equipped with a touch display screen.

3. The self-adapting intelligent coal fire detection and disaster grading extinguishing linkage device according to claim 1, characterized in that: The inert gas fire extinguishing device (7) includes a gas storage tank (10), a gas pipe (11), a first electromagnetic valve (12), and a gas outlet (13). The gas storage tank (10) is made of high-strength alloy steel to ensure pressure resistance, and a pressure monitoring device is arranged inside to provide real-time feedback on the internal pressure. The first electromagnetic valve (12) is connected to the gas pipe (11), and the gas pipe (11) is provided with a plurality of evenly distributed gas outlets (13), the angle of which can be adjusted.

4. The self-adapting intelligent coal fire detection and disaster grading extinguishing linkage device according to claim 3, characterized in that: The gas storage tank (10) stores compressed nitrogen with a purity of more than 99.9%.

5. The self-adapting intelligent coal fire detection and disaster grading extinguishing linkage device according to claim 1, characterized in that: The dry powder fire extinguishing device (8) includes a dry powder pressure tank (14), a spray pipe (15), a second electromagnetic valve (16), a third electromagnetic valve (17), and a spray head (18). The dry powder pressure tank (14) is provided with a stirring device inside. The second electromagnetic valve (16) is arranged at one end of the spray pipe (15) close to the dry powder pressure tank (14). The spray pipe (15) is connected with a plurality of evenly distributed spray heads (18), and the third electromagnetic valve (17) is arranged between the spray pipe (15) and the spray heads (18). The spray heads (18) are atomizing spray heads.

6. The self-adapting intelligent coal fire detection and disaster grading extinguishing linkage device according to claim 1, characterized in that: The spray fire extinguishing device (9) includes a booster pump (19), a fourth electromagnetic valve (20), a water pipe (21), and an atomizing spray head (22). The booster pump (19) is controlled by frequency conversion. The fourth electromagnetic valve (20) is installed at the water inlet end of the booster pump (19). The water outlet end of the booster pump (19) is communicated with the water pipe (21), which is provided with a plurality of evenly distributed atomizing spray heads (22). The atomizing spray heads (22) have a self-cleaning function.

7. The self-adapting intelligent coal fire detection and disaster grading extinguishing linkage device according to claim 1, characterized in that: The linkage control device (5) establishes a disaster grading model based on a support vector machine (SVM) combined with a deep learning algorithm, and according to multi-dimensional parameters such as temperature, gas concentration, smoke concentration and thermal imaging data, the coal fire disaster is divided into three grades: the first grade is the initial coal fire, the second grade is the developing coal fire, and the third grade is the serious coal fire, and the model has self-learning ability, and can continuously optimize the grading accuracy according to the actual fire extinguishing data.

8. The self-adapting intelligent coal fire detection and disaster grading extinguishing linkage device according to claim 7, characterized in that: The linkage control device (5) supports the CAN bus protocol, and is compatible with the Modbus protocol.

9. The self-adapting intelligent coal fire detection and disaster grading extinguishing linkage device according to claim 8, characterized in that: The detection device outputs digital and analog signals to the linkage control device (5), and the linkage control device (5) comprehensively analyzes and judges the alarm level according to the received signals, and alarms, and starts the fire extinguishing device when the set alarm level is reached.

10. The self-adapting intelligent coal fire detection and disaster grading extinguishing linkage device according to claim 1, characterized in that: The power module (6) includes a DC 12V / 1A power supply, which is electrically connected with the linkage control device (5), and the power module has overvoltage, overcurrent and short circuit protection functions, and is provided with a backup battery.

Images