Method and system for preventing combustion caused by fire operation in gas tunnel

Abstract

The invention provides a method and system for preventing combustion caused by fire operation in a gas tunnel, and the method comprises the steps: carrying out the real-time monitoring of the gas concentration and dust concentration in a fire operation point region, and obtaining the gas concentration and dust concentration in the fire operation point region; the fire source of the fire operation point and the external environment are isolated through a fire operation cover, the gas concentration and the dust concentration in the fire operation cover are monitored in real time, and the gas concentration and the dust concentration in the fire operation cover are obtained; and a control instruction is determined according to the gas concentration and the dust concentration in the fire operation point area and the gas concentration and the dust concentration in the fire operation cover, and the intelligent controller is used for executing the control instruction. According to the technical scheme provided by the invention, through a dual protection mechanism of'regional monitoring + local isolation + intelligent control ', safety management and control of the whole process of fire operation are realized.

Description

Technical Field

[0001] This application relates to the field of gas control technology in construction tunnels, and in particular to a method and system for preventing combustion caused by hot work in gas tunnels. Background Technology

[0002] In railway and highway tunnel construction, safety faces severe challenges when traversing gas-bearing strata (such as coal-bearing and natural gas strata). Especially during initial support and secondary lining operations, hot work such as welding anchor mesh and anchor bolts for steel arch frames, and cutting steel is unavoidable. Currently, the industry mainly follows technical specifications such as the "Technical Specification for Railway Gas Tunnels" (TB 10120-2019) and the "Technical Specification for Design and Construction of Highway Gas Tunnels" (JTG / T 3374-2020). While these specifications establish strict management regulations and protective measures for hot work, significant safety shortcomings still exist in actual construction.

[0003] Existing technologies primarily rely on enhanced ventilation, the provision of fire extinguishing equipment (such as fire extinguishers and fire blankets), and manual gas detection. However, these methods are passive and reactive. First, the surrounding rock of tunnels, especially at the arch foot and sidewalls, continuously and unevenly releases methane gas, easily leading to localized methane accumulation near the work site. Traditional timed or fixed-point manual detection cannot achieve real-time monitoring without blind spots, and cannot react immediately when the methane concentration reaches a dangerous critical point. Second, conventional ventilation systems cannot effectively isolate the instantaneous high-temperature ignition source and welding slag spatter generated by hot work. Once the externally accumulated methane or combustible dust is ignited, it can easily cause localized combustion, and may even ignite the coal seam in the surrounding rock, leading to serious safety accidents. Therefore, existing technologies fail to fundamentally solve the problem of methane isolation and real-time intelligent control in the vicinity of hot work sites. There is an urgent need for a safety assurance solution that can actively isolate fire sources, monitor the environment in real time, and automatically link and control to achieve inherent safety in hot work operations in gas tunnels. This would not only ensure the safety of construction personnel and equipment inside the tunnel, but also effectively improve construction efficiency and generate significant economic and social benefits. Summary of the Invention

[0004] This application provides a method and system for preventing combustion caused by hot work operations in gas tunnels, thereby at least solving the technical problem that the prior art has failed to fundamentally solve the gas isolation and real-time intelligent control in the vicinity of the hot work operation point.

[0005] The first aspect of this application provides a method for preventing combustion caused by hot work operations in a gas tunnel, the method comprising: The gas concentration and dust concentration in the hot work area are monitored in real time to obtain the gas concentration and dust concentration in the hot work area. The hot work hood is used to isolate the fire source at the hot work point from the external environment, and the gas concentration and dust concentration inside the hot work hood are monitored in real time to obtain the gas concentration and dust concentration inside the hot work hood. The control command is determined based on the gas concentration and dust concentration in the hot work area and the gas concentration and dust concentration inside the hot work hood, and the control command is executed using an intelligent controller.

[0006] Preferably, the hot work area is a space within a radius of 20 meters centered on the hot work point.

[0007] Furthermore, the hot work hood includes: a tray, side walls, an operating window, a fan, and a hot work hood handle hook; The tray contains water or sand. Multiple feed windows are evenly distributed on the side wall.

[0008] Furthermore, the step of determining the control command based on the gas concentration and dust concentration in the area of ​​the hot work point, and the gas concentration and dust concentration inside the hot work hood, includes: When the gas concentration in the hot work area is greater than or equal to a preset first warning value, and / or the dust concentration is greater than or equal to a preset second warning value, an area alarm is generated and an instruction is given to turn on the ventilation fan of the construction tunnel. When the gas concentration inside the hot work hood is greater than or equal to the preset third warning value, and / or the dust concentration is greater than or equal to the preset fourth warning value, an alarm for the work hood is generated and a command to activate the local fan at the top of the hot work hood is issued. When the gas concentration and / or dust concentration in the area of ​​the hot work operation point reaches the power-off value, a command is generated to shut down the power supply of the hot work operation instruments and equipment and stop the hot work operation.

[0009] Furthermore, after shutting off the power to the hot work instruments and equipment and stopping the hot work operation, the following is also included: When the gas concentration inside the hot work hood is less than the preset third warning value and the dust concentration is less than the preset fourth warning value, a power restoration command is generated.

[0010] Furthermore, one or more gas sensors and dust sensors installed above the dome of the hot work hood are used to monitor the gas concentration and dust concentration inside the hot work hood.

[0011] Preferably, an integrated gas-dust sensor for mining is used to monitor the gas and dust concentrations in the area of ​​the hot work site in real time.

[0012] A second aspect of this application provides a system for preventing combustion caused by hot work in gas tunnels, comprising: The area monitoring module is used to monitor the gas concentration and dust concentration in the area of ​​the hot work point in real time, and obtain the gas concentration and dust concentration in the area of ​​the hot work point. The monitoring module inside the hood is used to isolate the fire source of the hot work point from the external environment using the hot work hood, and to monitor the gas concentration and dust concentration inside the hot work hood in real time, so as to obtain the gas concentration and dust concentration inside the hot work hood. The control module is used to determine control commands based on the gas concentration and dust concentration in the hot work area, the gas concentration and dust concentration inside the hot work hood, and to execute the control commands using an intelligent controller.

[0013] A third aspect of this application provides an electronic device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, it implements the method described in the first aspect embodiment.

[0014] A fourth aspect of this application provides a computer-readable storage medium having a computer program stored thereon that, when executed by a processor, implements the method described in the first aspect.

[0015] The technical solutions provided by the embodiments of this application bring at least the following beneficial effects: This application proposes a method and system for preventing combustion caused by hot work operations in gas tunnels. The method includes: real-time monitoring of gas and dust concentrations within the hot work area to obtain the gas and dust concentrations within the hot work area; isolating the ignition source from the external environment using a hot work hood, and real-time monitoring of the gas and dust concentrations inside the hot work hood to obtain the gas and dust concentrations inside the hot work hood; determining control commands based on the gas and dust concentrations within the hot work area and inside the hot work hood, and executing the control commands using an intelligent controller. The technical solution proposed in this application achieves safe control of the entire hot work process through a dual protection mechanism of "regional monitoring + local isolation + intelligent control".

[0016] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a flowchart illustrating a method for preventing combustion caused by hot work in a gas tunnel, according to an embodiment of this application. Figure 2 This is a structural diagram of a hot work hood according to an embodiment of this application; Figure 3 This is a schematic diagram of an intelligent controller provided according to an embodiment of this application; Figure 4 This is a schematic diagram of the layout of corresponding instruments and equipment at a hot work site in a gas tunnel according to an embodiment of this application; Figure 5 This is a detailed flowchart of a method for preventing combustion caused by hot work in a gas tunnel, according to an embodiment of this application. Figure 6 This is a structural diagram of a system for preventing combustion caused by hot work in a gas tunnel, according to an embodiment of this application. Figure Labels 1. Tray, 2. Side wall, 3. Operating window, 4. Hot work hood handle, 5. Feeding window 2-1, 6. Gas and dust sensor, 7. Display screen, 8. Inner wall of construction tunnel, 9. Hot work hood, 10. Excavated space of construction tunnel, 11. Intelligent controller. Detailed Implementation

[0018] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0019] This application proposes a method and system for preventing combustion caused by hot work operations in gas tunnels. The method includes: real-time monitoring of gas and dust concentrations within the hot work area to obtain the gas and dust concentrations within the hot work area; isolating the ignition source from the external environment using a hot work hood, and real-time monitoring of the gas and dust concentrations inside the hot work hood to obtain the gas and dust concentrations inside the hot work hood; determining control commands based on the gas and dust concentrations within the hot work area and inside the hot work hood, and executing the control commands using an intelligent controller. The technical solution proposed in this application achieves safe control of the entire hot work process through a dual protection mechanism of "regional monitoring + local isolation + intelligent control".

[0020] The following description, with reference to the accompanying drawings, describes a method and system for preventing combustion caused by hot work operations in a gas tunnel, according to an embodiment of this application.

[0021] Example 1 Figure 1 This is a flowchart illustrating a method for preventing combustion caused by hot work in a gas tunnel, according to one embodiment of this application. Figure 1 As shown, the method includes: Step 1: Monitor the gas concentration and dust concentration in the hot work area in real time to obtain the gas concentration and dust concentration in the hot work area. It should be noted that the hot work area is the space within a radius of 20 meters centered on the hot work point.

[0022] It should be noted that the integrated gas-dust sensor for mining is used to monitor the gas and dust concentrations in the hot work area in real time.

[0023] The hot work area is the space within 20 meters of the hot work site inside the gas tunnel, where hot work such as gas welding, electric welding, cutting, and grinding is carried out. The concentration of methane in the air within the hot work area can be monitored using a mine-specific methane concentration sensor, and the dust concentration can be detected using a dust sensor. The methane and dust concentration sensors can also be integrated mine-specific methane-dust sensors.

[0024] Step 2: Use a hot work hood to isolate the fire source at the hot work point from the external environment, and monitor the gas concentration and dust concentration inside the hot work hood in real time to obtain the gas concentration and dust concentration inside the hot work hood. In the embodiments disclosed herein, such as Figure 2 As shown, the hot work hood includes: a tray 1, a side wall 2, an operating window 3, a fan 4, and a hot work hood handle hook 5; The tray 1 contains water or sand. Multiple feed windows 2-1 are evenly distributed on the side wall 2.

[0025] It should be noted that one or more gas sensors and dust sensors installed above the dome of the hot work hood are used to monitor the gas concentration and dust concentration inside the hot work hood.

[0026] It should be noted that a hot work hood is a protective device for hot work operations that prevents gas and dust from spreading into the local area of ​​the hot work site and prevents flames and welding slag from splashing everywhere. It also allows for further safety monitoring of gas and dust concentrations near the hot work site.

[0027] like Figure 2As shown, 1 is a tray with a perimeter that can hold water or sand; welding slag produced during hot work will eventually fall into the tray. 2 is the side wall of the hot work hood, mainly used to isolate gas and prevent welding slag from splashing out. 2-1 are three evenly distributed feeding windows for hot work components on the wall, which can be opened when components are placed in and closed when not in use. 3 is the hot work operation window. 4 is a small fan; based on the principle that gas is lighter than air, the fan can blow gas upwards out of the hood. 5 is the hot work hood's carrying hook. 6 is three gas-dust sensors evenly distributed above the dome of the hot work hood; these three gas sensors are associated with the intelligent controller.

[0028] Step 3: Determine the control command based on the gas concentration and dust concentration in the hot work area and inside the hot work hood, and execute the control command using the intelligent controller.

[0029] In this embodiment of the disclosure, determining the control command based on the gas concentration and dust concentration in the area of ​​the hot work point, and the gas concentration and dust concentration inside the hot work hood, includes: When the gas concentration in the hot work area is greater than or equal to a preset first warning value, and / or the dust concentration is greater than or equal to a preset second warning value, an area alarm is generated and an instruction is given to turn on the ventilation fan of the construction tunnel. When the gas concentration inside the hot work hood is greater than or equal to the preset third warning value, and / or the dust concentration is greater than or equal to the preset fourth warning value, an alarm for the work hood is generated and a command to activate the local fan at the top of the hot work hood is issued. When the gas concentration and / or dust concentration in the area of ​​the hot work operation point reaches the power-off value, a command is generated to shut down the power supply of the hot work operation instruments and equipment and stop the hot work operation.

[0030] It should be noted that the intelligent controller refers to a system that uses technologies such as relays and frequency converters to intelligently control the concentration of methane and dust. When the concentration of methane or dust in the area reaches the warning value, the intelligent controller automatically alarms and automatically increases the ventilation fan in the construction tunnel to increase the wind speed and air volume, intelligently reducing the concentration of methane or dust below the warning value. When the concentration of methane or dust inside the hot work hood reaches the warning value, the intelligent controller automatically alarms and automatically starts the local fan at the top of the hot work hood to intelligently reduce the concentration of methane or dust inside the hood below the warning value. When the concentration of methane or dust in the area or inside the hot work hood reaches the power-off value, the intelligent controller automatically shuts off the power to the hot work instruments and equipment to stop the hot work. The power to the hot work instruments and equipment can only be restarted to resume the hot work only when all methane and dust concentration sensors drop below the warning value. A schematic diagram of the intelligent controller can be found here. Figure 3As shown, 7 is the real-time display screen for detection data. The power button on the upper main control area of ​​the controller functions as: the master switch for the entire intelligent controller system; used to start or stop the controller.

[0031] The function of the warning button is to manually trigger or test the audible and visual alarm system. When pressed, it should activate the alarm to confirm that the alarm device is working properly, or to manually sound an alarm in an emergency.

[0032] The function of button 1 is to control the tunnel ventilation fan. It is used to manually control the start and stop of the main tunnel ventilation fan or adjust the air volume (e.g., via a frequency converter) to reduce the gas concentration in the hot work area (within 20 meters).

[0033] The function of button 2: controls the ventilation fan of the hot work hood. It is used to manually turn on or off the small local fan at the top of the hot work hood to remove accumulated gas inside the hood.

[0034] The function of button 3: Power control for hot work equipment. Used to manually cut off or restore power to hot work equipment (such as welding machines). In automatic mode, this circuit will automatically cut off power (gas-power interlock) when the gas level exceeds the limit. This button can also be used for manual emergency power-off or reset after troubleshooting.

[0035] The side sensor and communication area, and the function of the area sensor button: connect the signal line interface of the gas and dust sensor in the automatic ignition operation area (such as within 20 meters).

[0036] The function of the sensor button inside the hood: to connect the signal line interface of the gas and dust sensors inside the automatic fire-fighting hood.

[0037] Functions of Control Button 1, Control Button 2, and Control Button 3: These are output interfaces, corresponding to the "Control" buttons with the same names above. They are connected to the controlled equipment (such as tunnel ventilation fans, enclosure fans, and hot work power supplies) via cables to execute commands issued by the controller.

[0038] The communication button serves as a network or data communication interface. It is used to upload monitoring data from this controller (such as gas concentration and equipment status) to the tunnel integrated monitoring center, or to receive remote commands from the center, thereby achieving system integration and remote monitoring.

[0039] Furthermore, after shutting off the power to the hot work instruments and equipment and stopping the hot work operation, the following is also included: When the gas concentration inside the hot work hood is less than the preset third warning value and the dust concentration is less than the preset fourth warning value, a power restoration command is generated.

[0040] It should be noted that the schematic diagram of the corresponding instrument and equipment layout at the gas tunnel hot work site according to the method of the present invention is as follows: Figure 4 As shown, 8 represents the inner wall of the construction tunnel, and 9 represents the hot work hood, which is equipped with... Figure 2 The three gas and dust sensors shown are: 10 represents the excavated space of the construction tunnel, and 11 represents the intelligent controller.

[0041] The overall principle of intelligent control of the method of this invention is as follows: Figure 5 As shown, it will not be elaborated further here.

[0042] This embodiment proposes a method to prevent combustion caused by hot work in gas tunnels. Compared with traditional methods that rely on fire blankets, fire extinguishers, and other fire-fighting equipment, this invention uses multiple sensors to monitor the gas concentration in the hot work area and local area in real time. By setting up a hot work hood, it can effectively isolate external gas from entering the vicinity of the hot work point. The hot work hood is also equipped with a gas sensor to monitor the gas concentration inside the hood and a small fan that can automatically turn on to reduce the gas concentration inside the hood. When the gas concentration of any networked methane sensor exceeds the alarm value, an alarm is automatically triggered and the fan inside the hot work hood is turned on simultaneously. When the gas concentration of any networked methane sensor exceeds the power cut-off value, the power supply to the hot work instruments and equipment is automatically cut off by the intelligent controller. Of course, the equipment cannot be restarted until the gas concentration drops below the warning value. This effectively solves the problems of risky and unsafe operations due to excessive gas levels during all hot work operations in tunnels, ensuring the inherent safety of hot work operations in tunnels.

[0043] In current high-gas tunnel construction, hot work such as welding, cutting, and grinding is unavoidable during steel arch installation and lining support. However, when the surrounding rock contains gas-bearing coal seams or carbonaceous mudstone, hot work often causes localized gas combustion, posing significant safety hazards. The root cause of this localized gas combustion is the diffusion of a certain concentration of gas into the small area where the hot work is performed. This is especially true at the arch foot, where the gas concentration from the sidewall coal seam is generally high when welding the steel arch anchor bolts, making it highly susceptible to combustion. Therefore, the method of this invention first considers inventing a hot work hood to isolate the surrounding gas outside the small area of ​​the hot work operation. Simultaneously, it intelligently monitors the gas concentration inside the hood. When the gas concentration reaches a warning value, the fan inside the hood automatically activates to reduce the gas concentration. If the gas concentration reaches a power-off value, it automatically cuts off the power to the hot work equipment, switching to a gas-power-locked state. At the same time, if the gas concentration at any point within the larger hot work area reaches the warning value, the tunnel ventilation fan automatically increases to reduce the gas concentration within a 20m radius of the hot work point. This invention provides dual-layer intelligent control of the hot work operation, both in the main area and locally, ensuring that the hot work operation will not cause gas combustion and ensuring that hot work operations in gas tunnels are always inherently safe.

[0044] In summary, the method proposed in this embodiment for preventing combustion caused by hot work in gas tunnels achieves safe control of the entire hot work process through a dual protection mechanism of "regional monitoring + local isolation + intelligent control".

[0045] Example 2 Figure 6 This is a structural diagram of a system for preventing combustion caused by hot work in a gas tunnel, according to an embodiment of this application. Figure 6 As shown, the system includes: The area monitoring module 100 is used to monitor the gas concentration and dust concentration in the area of ​​the hot work point in real time, and obtain the gas concentration and dust concentration in the area of ​​the hot work point. It should be noted that the hot work area is the space within a radius of 20 meters centered on the hot work point.

[0046] It should be noted that the integrated gas-dust sensor for mining is used to monitor the gas and dust concentrations in the hot work area in real time.

[0047] The monitoring module 200 inside the hood is used to isolate the fire source of the hot work point from the external environment using the hot work hood, and to monitor the gas concentration and dust concentration inside the hot work hood in real time, so as to obtain the gas concentration and dust concentration inside the hot work hood. It should be noted that the hot work hood includes: a tray, side walls, an operating window, a fan, and a hot work hood handle hook; The tray contains water or sand. Multiple feed windows are evenly distributed on the side wall.

[0048] It should be noted that one or more gas sensors and dust sensors installed above the dome of the hot work hood are used to monitor the gas concentration and dust concentration inside the hot work hood.

[0049] The control module 300 is used to determine control commands based on the gas concentration and dust concentration in the hot work area, the gas concentration and dust concentration inside the hot work hood, and to execute the control commands using an intelligent controller.

[0050] In this embodiment of the disclosure, the control module 300 is further configured to: When the gas concentration in the hot work area is greater than or equal to a preset first warning value, and / or the dust concentration is greater than or equal to a preset second warning value, an area alarm is generated and an instruction is given to turn on the ventilation fan of the construction tunnel. When the gas concentration inside the hot work hood is greater than or equal to the preset third warning value, and / or the dust concentration is greater than or equal to the preset fourth warning value, an alarm for the work hood is generated and a command to activate the local fan at the top of the hot work hood is issued. When the gas concentration and / or dust concentration in the area of ​​the hot work operation point reaches the power-off value, a command is generated to shut down the power supply of the hot work operation instruments and equipment and stop the hot work operation.

[0051] In this embodiment of the disclosure, the control module 300 is further configured to: When the gas concentration inside the hot work hood is less than the preset third warning value and the dust concentration is less than the preset fourth warning value, a power restoration command is generated.

[0052] In summary, the system proposed in this embodiment for preventing combustion caused by hot work in gas tunnels achieves safe control over the entire hot work process through a dual protection mechanism of "regional monitoring + local isolation + intelligent control".

[0053] Example 3 To implement the above embodiments, this disclosure also proposes an electronic device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, it implements the method described in Embodiment 1.

[0054] Example 4 To implement the above embodiments, this disclosure also proposes a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the method described in Embodiment 1.

[0055] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0056] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing custom logic functions or processes, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of this application pertain.

[0057] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A method for preventing combustion caused by hot work in a gas tunnel, characterized in that, The method includes: The gas concentration and dust concentration in the hot work area are monitored in real time to obtain the gas concentration and dust concentration in the hot work area. The hot work hood is used to isolate the fire source at the hot work point from the external environment, and the gas concentration and dust concentration inside the hot work hood are monitored in real time to obtain the gas concentration and dust concentration inside the hot work hood. The control command is determined based on the gas concentration and dust concentration in the hot work area and the gas concentration and dust concentration inside the hot work hood, and the control command is executed using an intelligent controller.

2. The method as described in claim 1, characterized in that, The hot work area is the space within a radius of 20 meters centered on the hot work point.

3. The method as described in claim 2, characterized in that, The hot work hood includes: a tray, side walls, an operating window, a fan, and a hot work hood handle hook; The tray contains water or sand. Multiple feed windows are evenly distributed on the side wall.

4. The method as described in claim 3, characterized in that, The determination of control commands based on the gas concentration and dust concentration within the hot work area, and the gas concentration and dust concentration inside the hot work hood, includes: When the gas concentration in the hot work area is greater than or equal to a preset first warning value, and / or the dust concentration is greater than or equal to a preset second warning value, an area alarm is generated and an instruction is given to turn on the ventilation fan of the construction tunnel. When the gas concentration inside the hot work hood is greater than or equal to the preset third warning value, and / or the dust concentration is greater than or equal to the preset fourth warning value, an alarm for the work hood is generated and a command to activate the local fan at the top of the hot work hood is issued. When the gas concentration and / or dust concentration in the area of ​​the hot work operation point reaches the power-off value, a command is generated to shut down the power supply of the hot work operation instruments and equipment and stop the hot work operation.

5. The method as described in claim 4, characterized in that, After shutting off the power to the hot work instruments and equipment and stopping the hot work operation, the following is also included: When the gas concentration inside the hot work hood is less than the preset third warning value and the dust concentration is less than the preset fourth warning value, a power restoration command is generated.

6. The method as described in claim 5, characterized in that, One or more gas sensors and dust sensors installed above the dome of the hot work hood are used to monitor the gas concentration and dust concentration inside the hot work hood.

7. The method as described in claim 1, characterized in that, The integrated gas and dust sensor for mining is used to monitor the gas and dust concentrations in the area where hot work is being carried out in real time.

8. A system for preventing combustion caused by hot work in a gas tunnel, characterized in that, The system includes: The area monitoring module is used to monitor the gas concentration and dust concentration in the area of ​​the hot work point in real time, and obtain the gas concentration and dust concentration in the area of ​​the hot work point. The monitoring module inside the hood is used to isolate the fire source of the hot work point from the external environment using the hot work hood, and to monitor the gas concentration and dust concentration inside the hot work hood in real time, so as to obtain the gas concentration and dust concentration inside the hot work hood. The control module is used to determine control commands based on the gas concentration and dust concentration in the hot work area, the gas concentration and dust concentration inside the hot work hood, and to execute the control commands using an intelligent controller.

9. An electronic device, characterized in that, include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the program, implements the method as described in any one of claims 1-7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the method as described in any one of claims 1-7.

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