Coal spontaneous combustion high positive pressure gas storage type transmission and intelligent monitoring system

Abstract

The application discloses a kind of coal spontaneous combustion high positive pressure gas storage type transmission and intelligent monitoring system, filter dust device, positive pressure pump, air inlet valve, gas storage tank, air outlet valve, data analysis unit are sequentially connected in the system;Gas storage tank is equipped with pressure acquisition unit;Air inlet valve is equipped with sequentially connected motor, connecting rod transmission mechanism, valve rod, valve core and iron core, air inlet valve is also equipped with the coil located below valve core, so that iron core can move through the center of coil under the driving of connecting rod transmission mechanism;Air inlet valve is also equipped with signal processor connected with coil.Signal processor of air inlet valve, signal receiving feedback device, signal receiving controller, positive pressure pump are sequentially connected in the system;Host computer is connected with pressure acquisition unit, signal processor of air inlet valve respectively.The application uses host computer to intelligently control the opening and closing of valve and positive pressure pump, and then realizes the intermittent operation of positive pressure pump, fundamentally solves the problem of short service life and quick loss of positive pressure pump working continuously for a long time.

Description

Technical Field

[0001] The present invention relates to the technical field of mine safety monitoring, in particular to a high-positive-pressure gas storage transmission and intelligent monitoring system for spontaneous combustion of coal. Background Art

[0002] Spontaneous combustion of coal poses a serious threat to safe production in the coal industry. During pyrolysis, coal produces corresponding marker gases as its temperature changes. Gas detection can be used to further determine the state and extent of spontaneous combustion. The bundled tube monitoring system primarily utilizes pipelines to transport gas from a specific location underground for centralized monitoring. This system analyzes changes in gas concentration and composition, identifies the development trend of underground spontaneous combustion fires, and identifies the dangers of toxic and hazardous gases. This system enables timely and accurate prediction of underground coal seam fires, and is therefore widely used by coal companies for fire monitoring and fire prevention.

[0003] Current bundled-tube monitoring systems require positive-pressure pumps to operate continuously for extended periods, shortening their service life and increasing the risk of failure. This impacts the ability to accurately monitor and predict the development of underground coal spontaneous combustion fires, compromising safe production in coal mining operations. Rapid pump depletion also increases investment costs. Furthermore, bundled-tube monitoring systems often transport gas from underground monitoring points to surface for analysis. This long pipeline length results in prolonged gas transport and low analysis efficiency. Summary of the Invention

[0004] To address the aforementioned issues with the existing technology, the present invention provides a high-pressure gas storage, transmission, and intelligent monitoring system for coal spontaneous combustion. By sensing pressure changes within the gas storage tank, the system intelligently controls valve opening and closing and intermittent operation of the positive pressure pump, effectively preventing the rapid loss of the positive pressure pump caused by prolonged, uninterrupted operation. Furthermore, a data analysis unit, connected to the gas storage tank and located in a chamber underground, uses wireless communication to upload monitoring data to the surface, significantly shortening gas transmission time and improving gas analysis efficiency.

[0005] The present invention discloses a high-positive-pressure gas storage transmission and intelligent monitoring system for spontaneous combustion of coal, comprising: a gas storage transmission module and a signal control module, wherein the gas storage transmission module comprises: a dust filter device, a positive-pressure pump, an air intake valve, an air storage tank, an air outlet valve, and a data analysis unit connected in sequence; the air storage tank is provided with a pressure acquisition unit; the air intake valve is provided with: an electric motor, a connecting rod transmission mechanism, a valve stem, a valve core and an iron core connected in sequence, the air intake valve is also provided with a coil located below the valve core, so that the iron core can move through the center of the coil under the drive of the connecting rod transmission mechanism; the air intake valve is also provided with a signal processor connected to the coil, for obtaining an inductance change signal of the coil, and obtaining a valve displacement signal reflecting the valve movement distance based on the processing of the inductance change signal.

[0006] The signal control module includes a host computer, a signal receiving feedback device, and a signal receiving controller, wherein the signal processor of the intake valve, the signal receiving feedback device, the signal receiving controller, and the positive pressure pump are connected in sequence and are used to control the opening and closing of the positive pressure pump based on the valve displacement signal sent by the signal processor; the host computer is respectively connected to the pressure acquisition unit and the signal processor of the intake valve.

[0007] Furthermore, the pressure acquisition unit includes: a pressure collector and a pressure sensor arranged on the gas storage tank, wherein the pressure collector is connected to the pressure sensor and the host computer respectively.

[0008] Furthermore, the host computer is connected to a CAN bus, wherein the pressure acquisition unit, the air inlet valve, and the air outlet valve are respectively connected to the host computer via the CAN bus.

[0009] Furthermore, both the inlet valve and the outlet valve are one-way valves. When the inlet valve is open, it only allows gas to enter the gas tank, and when the outlet valve is open, it only allows gas to be output from the gas tank. Under the control of the host computer, only one of the two can be in the open state at the same time.

[0010] Furthermore, the data analysis unit located underground includes a gas chromatograph and a laser spectrum analyzer, which are used to analyze and process the gas output by the gas outlet valve.

[0011] Furthermore, the coal spontaneous combustion high positive pressure gas storage transmission and intelligent monitoring system also includes: a coal spontaneous combustion characteristic information fusion detection and early warning system on the well that is wirelessly connected to the data analysis unit.

[0012] The present invention also discloses a control method for a coal spontaneous combustion high positive pressure gas storage transmission and intelligent monitoring system, comprising:

[0013] S1: Turn on the positive pressure pump and the air inlet valve, so that the gas at the downhole monitoring location enters the gas storage tank through the air inlet valve under the action of the positive pressure pump;

[0014] S2: The pressure acquisition unit detects the pressure in the gas tank and uploads it to the host computer. When the host computer determines that the pressure in the gas tank has increased to a pressure threshold, it sends a valve closing signal to the intake valve.

[0015] S3: After receiving the valve closing signal, the intake valve controls the motor to move the valve stem through the connecting rod transmission mechanism to close the intake valve. The signal processor of the intake valve obtains the coil inductance change signal and sends the valve displacement signal after processing.

[0016] S4: The signal receiving feedback device receives the valve displacement signal and compares it with the valve displacement threshold of the intake valve. If the valve displacement threshold is reached, a pump stop signal is sent to the signal receiving controller, causing the signal receiving controller to shut down the positive pressure pump.

[0017] S5: When the gas pressure in the gas storage tank no longer changes significantly, the host computer sends a valve opening signal to the outlet valve, the outlet valve opens, and the gas in the gas storage tank enters the data analysis unit through the outlet valve for analysis;

[0018] S6: After the gas in the gas tank is emptied, close the outlet valve.

[0019] Furthermore, the step S5 further includes:

[0020] The analysis results obtained by the data analysis unit are uploaded to the coal spontaneous combustion characteristic information fusion detection and early warning system on the well.

[0021] The present invention has at least the following beneficial effects:

[0022] The present invention adopts a host computer to intelligently control the opening and closing of the valve and the positive pressure pump based on the pressure change in the gas storage tank, thereby realizing intermittent operation of the positive pressure pump, fundamentally solving the problem of the positive pressure pump working uninterruptedly for a long time and having a short service life and rapid wear and tear.

[0023] The present invention further optimizes gas analysis and monitoring through the underground data analysis unit and the coal spontaneous combustion characteristic information fusion detection and early warning system above ground. Gas analysis and real-time monitoring can be completed directly underground, greatly improving the efficiency of gas analysis. It can also fuse multi-source coal spontaneous combustion characteristic information such as indicator gas component concentration, temperature and pressure above ground, further improving the accuracy of mine fire monitoring.

[0024] Other beneficial effects of the present invention will be described in detail in the specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 It is a schematic diagram of the overall structure of the high-positive-pressure gas storage transmission and intelligent monitoring system for spontaneous combustion of coal disclosed in the present invention.

[0027] Figure 2 This is a control principle diagram of a positive pressure pump in a high-positive-pressure gas storage transmission and intelligent monitoring system for spontaneous combustion of coal disclosed in the present invention.

[0028] Figure 3 It is a schematic diagram of the above- and below-ground communication principle of the coal spontaneous combustion high positive pressure gas storage transmission and intelligent monitoring system disclosed in the present invention.

[0029] Among them, 1. Dust filtering device; 2. Negative pressure suction pipeline; 3. Positive pressure pump; 4. Signal receiving controller; 5. Signal receiving feedback device; 6. Positive pressure suction pipeline; 7. Inlet valve; 8. Gas storage tank; 9. Pressure regulator; 10. Safety valve; 11. Pressure sensor; 12. Pressure collector; 13. Outlet valve; 14. Data analysis unit; 15. Signal cable; 16. CAN bus; 17. Host computer; 18. Electric motor; 19. Connecting rod transmission mechanism; 20. Valve stem; 21. Valve core; 22. Inlet; 23. Outlet; 24. Connecting device; 25. Iron core; 26. Coil; 27. Signal processor; 28. Coal spontaneous combustion characteristic information fusion monitoring and early warning system. DETAILED DESCRIPTION

[0030] To make the objectives, technical solutions, and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without inventive effort are within the scope of protection of the present invention.

[0031] The present invention discloses a high-positive-pressure gas storage transmission and intelligent monitoring system for spontaneous combustion of coal, comprising: a gas storage transmission module and a signal control module, wherein the gas storage transmission module comprises: a dust filter device, a positive-pressure pump, an air intake valve, an air storage tank, an air outlet valve, and a data analysis unit connected in sequence; the air storage tank is provided with a pressure acquisition unit; the air intake valve is provided with: an electric motor, a connecting rod transmission mechanism, a valve stem, a valve core and an iron core connected in sequence, and the air intake valve is also provided with a coil located below the valve core, so that the iron core can move through the center of the coil under the drive of the connecting rod transmission mechanism; the air intake valve is also provided with a signal processor connected to the coil, for obtaining an inductance change signal of the coil, and obtaining a valve displacement signal reflecting the valve movement distance based on the processing of the inductance change signal.

[0032] The signal control module includes a host computer, a signal receiving feedback device, and a signal receiving controller, wherein the signal processor of the intake valve, the signal receiving feedback device, the signal receiving controller, and the positive pressure pump are connected in sequence and are used to control the opening and closing of the positive pressure pump based on the valve displacement signal sent by the signal processor; the host computer is respectively connected to the pressure acquisition unit and the signal processor of the intake valve.

[0033] The present invention also discloses a control method corresponding to the above system, which specifically includes:

[0034] S1: Turn on the positive pressure pump and the air inlet valve, so that the gas at the downhole monitoring location enters the gas storage tank through the air inlet valve under the action of the positive pressure pump;

[0035] S2: The pressure acquisition unit detects the pressure in the gas tank and uploads it to the host computer. When the host computer determines that the pressure in the gas tank has increased to a pressure threshold, it sends a valve closing signal to the intake valve.

[0036] S3: After receiving the valve closing signal, the intake valve controls the motor to move the valve stem through the connecting rod transmission mechanism to close the intake valve. The signal processor of the intake valve obtains the coil inductance change signal and sends the valve displacement signal after processing.

[0037] S4: The signal receiving feedback device receives the valve displacement signal and compares it with the valve displacement threshold of the intake valve. If the valve displacement threshold is reached, a pump stop signal is sent to the signal receiving controller, causing the signal receiving controller to shut down the positive pressure pump.

[0038] S5: When the gas pressure in the gas storage tank no longer changes significantly, the host computer sends a valve opening signal to the outlet valve, the outlet valve opens, and the gas in the gas storage tank enters the data analysis unit through the outlet valve for analysis;

[0039] S6: After the gas in the gas tank is emptied, close the outlet valve.

[0040] The present invention is described in detail below in conjunction with embodiments:

[0041] Example 1

[0042] like Figures 1 to 3 As shown, this embodiment provides a high-positive-pressure gas storage, transmission, and intelligent monitoring system for coal spontaneous combustion. During operation, underground gas is first filtered through a dust filter 1 by a positive-pressure pump 3 under its negative-pressure suction action before entering a negative-pressure suction line 2. After being pressurized by the positive-pressure pump 3, it becomes high-pressure gas and enters a gas storage tank 8 through an intake valve 7 for storage. A highly sensitive electronic pressure sensing device (pressure sensor 11) is provided within the gas storage tank 8, capable of detecting pressure changes within the gas storage tank 8 in real time. Pressure sensor 11 is positioned within the gas storage tank 8 and accurately captures pressure changes within the gas storage tank 8. The signal is then transmitted to a pressure collector 12, which includes an A / D conversion circuit that converts the input voltage signal into an output digital signal. Because the signal output by pressure sensor 11 is relatively weak, it must be amplified by pressure collector 12 before being transmitted to a host computer 17 via a CAN bus 16. The gas storage tank 8 is also equipped with a pressure regulator 9 and a safety valve.

[0043] When the system is working, the positive pressure pump 3 starts to run and the air inlet valve 7 opens. At this time, the external gas is pressurized by the positive pressure pump 3 and enters the air storage tank 8. The internal gas pressure continues to increase. The high-sensitivity electronic pressure sensing device at the bottom of the air storage tank 8 monitors the pressure changes in real time. The signal generated by it is amplified and converted into a digital signal by the pressure collector 12 and then transmitted to the host computer 17 through the signal cable 15. After receiving the signal, the host computer 17 processes and analyzes the signal through the internal data processing module. When the internal pressure exceeds the set pressure threshold, the control signal output module of the host computer 17 sends an accurate control signal to the air inlet valve 7. The control signal is transmitted to the air inlet valve 7 and the air outlet valve 13 through the signal cable 15 to realize the opening and closing of the valve.

[0044] The host computer 17 in this embodiment mainly includes a signal receiving module, a monitoring module, a data processing module, and a control signal output module. The signal receiving module is mainly responsible for receiving signals from the pressure collector 12, the monitoring module is responsible for real-time monitoring of the numerical state changes of the highly sensitive electronic pressure sensing device inside the gas storage tank 8, and the data processing module is responsible for processing and analyzing the signals, forming an automated control system. The host computer 17 receives, processes, and issues control signals to achieve monitoring and joint control of the positive pressure pump 3, the inlet valve 7, the outlet valve 13, and the pressure sensor 11 of the gas storage tank 8. The control signal output module can issue accurate control signals to remotely control the opening and closing of the positive pressure pump 3, the inlet valve 7, and the outlet valve 13.

[0045] like Figure 2 As shown, the intake valve 7 is equipped with a motor 18, a connecting rod transmission mechanism 19, a valve stem 20, a valve core 21, an air inlet 22, an air outlet 23, and a connecting device 24. The intake valve 7 is also provided with an air inlet 22 and an air outlet 23 for air intake. The opening and closing of the air inlet 22 and the air outlet 23 are controlled by the up and down movement of the internal valve stem and valve core, thereby controlling the opening and closing of the intake valve 7. The intake valve 7 is also equipped with a signal processor 27. When the valve core 21 moves up and down, the iron core 25 also moves up and down with the valve core 21. During this movement, the inductance of the coil 26 changes. The signal generated based on this change is received by the signal processor 27, and after processing, it sends out an electrical signal that is related to the valve displacement. This electrical signal is sent to the signal receiving and feedback device 5 for further processing and analysis. The signal receiving feedback device 5 is connected to the signal receiving controller 4 on the positive pressure pump 3 via a signal cable 15. The signal receiving feedback device 5 analyzes the electrical signal from the signal processor 27 based on a preset displacement threshold. When the threshold is reached, the signal receiving feedback device 5 sends a pump start or stop signal, which is transmitted to the signal receiving controller 4 via the signal cable 15 to remotely control the opening or closing of the positive pressure pump 3. The structure of the outlet valve 13 can adopt the same structure as the inlet valve 7, or other existing structures can be adopted.

[0046] The intake valve 7 and the outlet valve 13 are both provided with a one-way valve, the intake valve 7 allows gas to enter but not to exit, and the outlet valve 13 allows gas to exit but not to enter. In the normal working state, only one of the one-way valves is in the open state, and the other is in the closed state. After the control signal is processed and analyzed by the signal processor 27, an electric signal related to the valve displacement is formed, and further enters the signal receiving feedback device 5 for processing and analysis. The signal receiving feedback device 5 is connected with the signal receiving controller 4 on the positive pressure pump 3. According to the pre-set valve displacement threshold, the signal receiving feedback device 5 analyzes the electric signal from the signal processor 27, and sends a pump stop signal when the valve displacement threshold is reached. The signal is transmitted to the signal receiving controller 4 through the signal cable 15, and the positive pressure pump 3 is closed through the signal receiving controller 4.

[0047] When the high-sensitivity electronic pressure sensing device of the gas storage tank 8 is lower than the pre-set pressure value, the upper computer 17 sends a control signal to the intake valve 7 and the positive pressure pump 3, and the positive pressure pump 3 and the intake valve 7 are opened, and the gas enters the vertical high-pressure gas storage tank 8. When the value detected by the high-sensitivity electronic pressure sensing device is higher than the pre-set pressure value, the upper computer 17 sends a signal to control the outlet valve 13 to open, and the positive pressure pump 3 and the intake valve 7 are in the closed state.

[0048] The collected gas is transported to the data analysis unit 14 through the outlet valve 13 in a positive pressure state, which mainly includes a gas chromatograph and a laser spectrum analyzer. Specifically, as shown in Figure 3 The data analysis unit 14 can include a flow meter, a filter, an explosion-proof device, a laser chromatograph, a control substation and the like. In this embodiment, the data analysis unit 14 is arranged in the underground chamber connected with the gas storage tank 8, and monitors and analyzes the concentration, temperature and pressure change of the gas components from the outlet valve 13. Through the chromatograph, the parameters of the index gas are collected and analyzed, and based on the industrial ring network and combined with the 5G network, the wireless communication mode is used to upload the monitoring data to the coal spontaneous combustion characteristic information fusion monitoring and early warning system 28 on the ground, realizing the integration of underground gas collection and analysis and wireless communication transmission of data results, forming a coal spontaneous combustion dangerous area characteristic information wireless monitoring and early warning system, effectively avoiding the time lag of analyzing gas on the ground and the concentration distortion problem in the transportation process, greatly improving the gas analysis efficiency.

[0049] The surface coal spontaneous combustion characteristic information fusion monitoring and early warning system 28 primarily comprises a data collection system, a fusion system, an analysis system, and an application system. This system fuses multi-source coal spontaneous combustion characteristic data, such as indicator gas component concentrations, temperature, and pressure at different monitoring points, from the data analysis unit 14. This information is then analyzed, processed, displayed, and stored to determine the extent and location of coal spontaneous combustion. Based on intelligent algorithms, integrating support vector machines and neural networks, this system establishes a coal spontaneous combustion characteristic information compensation model and an underground coal spontaneous combustion ignition severity early warning model. This system receives and fuses multi-source coal spontaneous combustion characteristic information, such as indicator gas component concentrations, temperature, and pressure at different monitoring points, from the underground data analysis unit 14. This information is then complemented by parameters to determine the extent and location of coal spontaneous combustion. Furthermore, this system combines this information with the mine's own safety monitoring system and the underground bundle pipe monitoring system to simultaneously monitor coal spontaneous combustion characteristic information, further improving the accuracy of mine fire monitoring. The surface coal spontaneous combustion characteristic information fusion monitoring and early warning system 28 can utilize existing methods for data processing, which will not be elaborated upon herein.

[0050] Example 2

[0051] This embodiment discloses a control method for a high-pressure gas storage transmission and intelligent monitoring system for coal spontaneous combustion. In the initial state of the system, the pressure in the gas storage tank 8 is 0.1 MPa. At this time, the positive pressure pump 3, the air inlet valve 7, and the air outlet valve 13 are all closed. The specific method is as follows:

[0052] When the system starts running, the positive pressure pump 3 is turned on and the air inlet valve 7 is opened. At this time, the gas at the underground monitoring location enters the negative pressure suction pipeline 2 through the dust filter device 1 under the negative pressure suction action of the positive pressure pump 3, and then is further pressurized by the positive pressure pump 3 and enters the air storage tank 8 through the positive pressure suction pipeline 6 and the air inlet valve 7 for storage.

[0053] As more and more gas accumulates in the gas tank 8, the pressure in the gas tank 8 also increases. When the pressure sensor 11 detects that the pressure of the gas in the gas tank 8 is between 1.5MPa and 1.7MPa (which can be adjusted according to the size of the gas tank 8), the pressure sensor 11 sends a signal, which is amplified and processed by the pressure collector 12 and then uploaded to the host computer 17 through the signal cable 15.

[0054] The pressure collector 12 will upload the signal to the host computer 17 through the signal cable 15. The signal receiving module and data processing module of the host computer 17 will identify and process the signal. Then, based on the pre-set pressure value between 1.5MPa and 1.7MPa as the threshold for closing the intake valve 7, the host computer 17 controls the signal output module to send a valve closing signal to the intake valve 7. The valve closing signal is transmitted to the signal processor 27 of the intake valve 7 through the signal cable 15.

[0055] After the valve closing signal is transmitted to the intake valve 7 signal processor 27 via the signal cable 15, the intake valve 7 controls the motor 18 to start operating in the reverse direction upon receiving the signal, driving the valve stem 20 through the connecting rod transmission mechanism 19. As the valve stem 20 moves, the connected iron core 25 also moves accordingly until the intake valve 7 is fully closed. During the closing process of the intake valve 7, the signal generated by the change in the inductance of the coil 26 due to the movement of the iron core 25 is sent to the signal processor 27. After processing and analysis by the signal processor 27, an electrical signal is generated that is proportional to the displacement of the intake valve 7. The signal is then transmitted via the signal cable 15 to the signal receiving and feedback device 5. The signal receiving and feedback device 5 analyzes the electrical signal from the signal processor 27 based on the displacement of the intake valve 7 when it is fully closed as the threshold for shutting down the positive pressure pump 3. When the displacement threshold is reached, a pump stop signal is issued. The signal is then transmitted via the signal cable 15 to the signal receiving controller 4, which shuts down the positive pressure pump 3.

[0056] When the pressure sensor 11 detects that the gas pressure in the gas tank 8 has gradually increased from an initial level to no longer significantly changing, it is determined that the positive pressure pump 3 has stopped operating and the inlet valve 7 is closed. At this time, the host computer 17 sends a valve-opening signal to the outlet valve 13. The valve-opening signal is transmitted to the signal processor of the outlet valve 13 via the signal cable 15. After receiving the signal, the outlet valve 13 controls the motor to start running, driving the valve stem through the connecting rod transmission mechanism. As the valve stem moves, the iron core connected to it also moves, and the outlet valve 13 gradually opens.

[0057] After the outlet valve 13 is opened, the positive pressure pump 3 and the inlet valve 7 are closed, and the collected gas is discharged outward in a positive pressure state through the vertical high-pressure gas storage tank (gas storage tank 8) through the outlet valve 13 into the data analysis unit 14. The gas from the outlet valve 13 of the gas storage tank 8 is accurately analyzed in combination with a gas chromatograph and a laser spectrometer, and the concentration, temperature and pressure changes of the gas components from the outlet valve 13 are monitored. At the same time, the monitoring data are uploaded to the coal spontaneous combustion characteristic information fusion monitoring and early warning system 28 on the surface. The coal spontaneous combustion characteristic information fusion monitoring and early warning system 28 fuses the multi-source coal spontaneous combustion characteristic data such as the gas component concentration, temperature and pressure from the outlet valve 13, realizing the integration of underground gas collection and analysis and the wireless communication transmission of data results, forming a wireless monitoring and early warning system for characteristic information of coal spontaneous combustion hazardous areas, further improving the accuracy of mine fire monitoring. When the monitored gas analysis is completed and the gas in the gas storage tank 8 is emptied, the outlet valve 13 is closed and the pressure in the gas storage tank 8 returns to the initial state of 0.1 MPa. This reciprocating process realizes the intermittent operation of the positive pressure pump 3.

[0058] The above merely illustrates the specific embodiments of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A coal spontaneous combustion high positive pressure gas storage transmission and intelligent monitoring system, characterized in that: include: An air storage and transmission module and a signal control module, wherein the air storage and transmission module includes: a dust filter device, a positive pressure pump, an air intake valve, an air storage tank, an air outlet valve, and a data analysis unit connected in sequence; the air storage tank is provided with a pressure acquisition unit; the air intake valve is provided with: an electric motor, a connecting rod transmission mechanism, a valve stem, a valve core, and an iron core connected in sequence; the air intake valve is also provided with a coil located below the valve core, so that the iron core can move through the center of the coil under the drive of the connecting rod transmission mechanism; the air intake valve is also provided with a signal processor connected to the coil, for obtaining an inductance change signal of the coil, and obtaining a valve displacement signal reflecting the valve movement distance based on the processing of the inductance change signal; The signal control module includes a host computer, a signal receiving feedback device, and a signal receiving controller. The signal processor of the intake valve, the signal receiving feedback device, the signal receiving controller, and the positive pressure pump are connected in sequence and are used to control the opening and closing of the positive pressure pump based on the valve displacement signal sent by the signal processor. The host computer is connected to the pressure acquisition unit and the signal processor of the intake valve respectively. The control method of the coal spontaneous combustion high positive pressure gas storage transmission and intelligent monitoring system includes: S1: Turn on the positive pressure pump and the air inlet valve, so that the gas at the downhole monitoring location enters the gas storage tank through the air inlet valve under the action of the positive pressure pump; S2: The pressure acquisition unit detects the pressure in the gas tank and uploads it to the host computer. When the host computer determines that the pressure in the gas tank has increased to a pressure threshold, it sends a valve closing signal to the intake valve. S3: After receiving the valve closing signal, the intake valve controls the motor to move the valve stem through the connecting rod transmission mechanism to close the intake valve. The signal processor of the intake valve obtains the coil inductance change signal and sends the valve displacement signal after processing. S4: The signal receiving feedback device receives the valve displacement signal and compares it with the valve displacement threshold of the intake valve. If the valve displacement threshold is reached, a pump stop signal is sent to the signal receiving controller, causing the signal receiving controller to shut down the positive pressure pump. S5: When the gas pressure in the gas storage tank no longer changes significantly, the host computer sends a valve opening signal to the outlet valve, the outlet valve opens, and the gas in the gas storage tank enters the data analysis unit through the outlet valve for analysis; Specifically, when the pressure sensor detects that the gas pressure in the gas tank gradually increases from the beginning to no longer changes significantly, it is determined that the positive pressure pump has stopped working and the air inlet valve is in a closed state; at this time, the upper computer sends a valve opening signal to the air outlet valve, and the valve opening signal is transmitted to the signal processor of the air outlet valve through the signal cable. After receiving the signal, the air outlet valve controls the motor to start running, and drives the valve stem to move through the connecting rod transmission mechanism. As the valve stem moves, the iron core connected to it also moves, and the air outlet valve gradually opens; After the outlet valve is opened, the positive pressure pump and the air inlet valve are in a closed state, and the collected gas is discharged outward from the gas tank in a positive pressure state through the outlet valve into the data analysis unit, and the gas from the outlet valve of the gas tank is accurately analyzed in combination with the gas chromatograph and the laser spectrometer, and the concentration, temperature and pressure changes of the gas components from the outlet valve are monitored. At the same time, the monitoring data are uploaded to the coal spontaneous combustion characteristic information fusion monitoring and early warning system on the surface; the coal spontaneous combustion characteristic information fusion monitoring and early warning system is used to fuse the multi-source coal spontaneous combustion characteristic data of gas component concentration, temperature and pressure from the outlet valve, realize the integration of underground gas collection and analysis and wireless communication transmission of data results, constitute a wireless monitoring and early warning system for characteristic information of coal spontaneous combustion hazardous areas, and further improve the accuracy of mine fire monitoring; when the monitored gas analysis is completed and the gas in the gas tank is emptied, the outlet valve is closed, and the pressure in the gas tank returns to the initial state, and this reciprocating process is used to realize the intermittent operation of the positive pressure pump; S6: After the gas in the gas tank is emptied, close the outlet valve.

2. A coal spontaneous combustion high positive pressure gas storage transmission and intelligent monitoring system according to claim 1, characterized in that: The pressure acquisition unit includes: a pressure collector and a pressure sensor arranged on the gas storage tank, wherein the pressure collector is connected to the pressure sensor and the host computer respectively.

3. The high-pressure gas storage, transmission and intelligent monitoring system for spontaneous combustion of coal according to claim 1 is characterized in that: The host computer is connected to a CAN bus, wherein the pressure acquisition unit, the air inlet valve, and the air outlet valve are respectively connected to the host computer via the CAN bus.

4. The high-pressure gas storage, transmission and intelligent monitoring system for spontaneous combustion of coal according to claim 1 is characterized in that: Both the inlet valve and the outlet valve are one-way valves. When the inlet valve is open, it only allows gas to enter the gas tank. When the outlet valve is open, it only allows gas to be output from the gas tank. Under the control of the host computer, only one of the two can be in the open state at the same time.

5. The high-pressure gas storage, transmission and intelligent monitoring system for spontaneous combustion of coal according to claim 1 is characterized in that: The data analysis unit located underground includes a gas chromatograph and a laser spectrum analyzer, which are used to analyze and process the gas output by the gas outlet valve.

6. The high-pressure gas storage, transmission and intelligent monitoring system for spontaneous combustion of coal according to claim 1 is characterized in that: The coal spontaneous combustion high positive pressure gas storage transmission and intelligent monitoring system also includes: a coal spontaneous combustion characteristic information fusion detection and early warning system on the well that is wirelessly connected to the data analysis unit.

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