Method and system for realizing intelligent fire extinguishing of heading machine

Abstract

The application discloses a kind of method and system for realizing intelligent fire extinguishing of heading machine, method includes: the gas tank device with manually operated agent spraying outlet and electric agent spraying outlet is installed on the heading machine for heading coal mine roadway;Atomizing nozzle installed on heading machine is respectively communicated manually operated agent spraying outlet and electric agent spraying outlet of gas tank device;No electricity control fire extinguishing device is connected with manually operated agent spraying outlet, so that fire occurs in the case of no power supply in storage chamber fire extinguishing agent is exported via manually operated agent spraying outlet to extinguish fire;Electrified control fire extinguishing device is connected with electric agent spraying outlet of gas tank device, so that fire occurs in the case of power supply in storage chamber fire extinguishing agent is exported via electric agent spraying outlet to extinguish fire.The method of the application, multiple trigger modes start gas tank device, can extinguish fire in the case of power supply or not, can start promptly in early fire, ensure that fire hazard is promptly removed.

Description

Technical Field

[0001] This invention relates to the field of tunneling machine technology, and in particular to a method and system for realizing intelligent fire extinguishing in tunneling machines. Background Technology

[0002] Currently, in the application of tunneling machines, fire extinguishing systems typically involve installing two handheld fire extinguishers on the machine body. However, this method has several drawbacks. The tunneling machine is located in complex terrain, with narrow passageways on both sides, uneven surfaces, and poor lighting. Potential fire sources may be hidden behind the machine's cover, limiting the ability of workers to detect a fire promptly. Furthermore, even if workers do spot a fire, reaching the fire extinguishers on the machine and then getting to the fire source takes considerable time, especially since some fire sources may be concealed by the cover, making it difficult for the extinguishers to extinguish the fire in time. Therefore, in practical applications, there is a problem with ensuring timely elimination of fire hazards, which poses a significant safety hazard, particularly in tunnels with gas risks. Summary of the Invention

[0003] The purpose of this invention is to solve the above-mentioned problems and provide a method and system for intelligent fire extinguishing of tunneling machines. The system has a compact structure, flexible layout, safe and reliable use, multiple triggering methods, and can extinguish fires in both power-on and power-off conditions. It can be activated in a timely and rapid manner in the early stages of a fire to ensure that potential fire hazards are eliminated promptly.

[0004] To achieve the above-mentioned objectives of the present invention, one aspect of the present invention provides a method for realizing intelligent fire suppression in tunneling machines, comprising:

[0005] The gas cylinder device, which has both manual and electric spray outlets, is installed on the tunneling machine used for excavating coal mine roadways.

[0006] The atomizing nozzles installed on the tunneling machine are connected to the manual agent spraying outlet and the electric agent spraying outlet of the gas cylinder device, so that the extinguishing agent output through the manual agent spraying outlet or the electric agent spraying outlet is sprayed outward through the atomizing nozzles to extinguish the fire.

[0007] Connect the non-electrically controlled fire extinguishing device to the manual agent spraying outlet of the gas cylinder device so that when a fire occurs and there is no power, the storage chamber of the gas cylinder device can be connected to the manual agent spraying outlet, so that the fire extinguishing agent in the storage chamber can be output through the manual agent spraying outlet to extinguish the fire.

[0008] Connect the electrically controlled fire extinguishing device to the electric agent spraying outlet of the gas cylinder device so that when a fire occurs, the gas cylinder device's storage chamber and the electric agent spraying outlet can be connected when there is power, so that the fire extinguishing agent in the storage chamber can be output through the electric agent spraying outlet to extinguish the fire.

[0009] Furthermore, it also includes connecting the remote-controlled fire extinguishing device to the electric agent spraying outlet of the gas cylinder device, so that when a fire occurs and no one in the roadway discovers the fire, the gas cylinder device's storage chamber and the electric agent spraying outlet can be automatically connected via remote control, so that the fire extinguishing agent in the storage chamber can be output through the electric agent spraying outlet for fire extinguishing.

[0010] Furthermore, the present invention also provides an intelligent fire extinguishing system for a tunneling machine using the method described above, comprising:

[0011] A gas cylinder device installed on a tunneling machine used for excavating coal mine roadways includes a manual agent spray outlet and an electric agent spray outlet for conveying the extinguishing agent stored in the gas cylinder's storage chamber to the outside of the gas cylinder device. An atomizing nozzle installed on the tunneling machine is connected to both the manual and electric agent spray outlets of the gas cylinder device, allowing the extinguishing agent output through either the manual or electric spray outlet to be sprayed outwards through the atomizing nozzle. A non-electrically controlled fire extinguishing device is connected to the manual agent spray outlet of the gas cylinder device and is used to connect the storage chamber of the gas cylinder device to the manual agent spray outlet in the absence of power, allowing the extinguishing agent in the storage chamber to be output through the manual agent spray outlet. An electrically controlled fire extinguishing device is connected to the electric agent spray outlet of the gas cylinder device and is used to connect the storage chamber of the gas cylinder device to the electric agent spray outlet in the presence of power, allowing the extinguishing agent in the storage chamber to be output through the electric agent spray outlet.

[0012] The gas cylinder device is also provided with a pneumatic control port. The non-electric fire extinguishing device includes a non-electric automatic fire extinguishing mechanism connected to the pneumatic control port of the gas cylinder device, which is used to automatically connect the gas cylinder device's storage chamber with the manual agent spraying outlet in the absence of power.

[0013] Preferably, the non-electric automatic fire extinguishing mechanism includes: a pneumatic automatic fire source detector installed on the tunneling machine; a high-pressure air pipe connected to the pneumatic automatic fire source detector; and a pneumatic triggering component installed at the pneumatic control port of the air tank device.

[0014] Preferably, the pneumatic triggering assembly includes: a cylinder barrel installed on the tank body of the gas canister device above the pneumatic control port; a cylinder piston rod installed inside the cylinder barrel and extending from the pneumatic control port toward the pneumatic control channel inside the tank body; an air plug installed at the extended end of the cylinder piston rod; a detachable plug installed at the lower part of the pneumatic control channel of the tank body; and a spring installed below the air plug and above the plug; wherein the plug has a vent hole at its center that communicates with the drug storage chamber of the tank body, and the pneumatic control channel is connected to the manual drug spraying outlet.

[0015] Preferably, the pneumatic automatic fire detector includes: an upper housing having a separated upper and lower cavity, with an air inlet on one side connecting the upper and lower cavities and an air outlet on the other side connecting the lower cavity; a lower housing detachably connected to the bottom of the upper housing; a piston installed in the lower cavity of the upper housing; a fire-fighting glass bulb partially installed on the lower housing and partially extending into the lower cavity of the upper housing; and a spring fitted around the fire-fighting glass bulb with its upper end connected to the lower end of the piston, the lower end of the spring being fixed to the lower housing.

[0016] Preferably, the pneumatic automatic fire source detector further includes: a plug installed at the agent addition port on the upper end of the upper housing; and a baffle and a locking clip installed below the fire-fighting glass bulb to fix it to the lower housing.

[0017] Furthermore, the non-electric fire extinguishing device also includes a non-electric manual fire extinguishing mechanism connected to the manual agent spraying outlet of the gas cylinder device, for manually connecting the gas cylinder device's storage chamber to the manual agent spraying outlet in the absence of power.

[0018] Preferably, the non-electric manual control fire extinguishing mechanism includes: a manual trigger switch installed on the gas cylinder device, and a manual control valve core for isolating the manual agent spray outlet of the gas cylinder device from the agent storage chamber.

[0019] Preferably, the gas cylinder device has a valve chamber on one side of the cylinder body that communicates with the manual agent spraying outlet, and the manual control valve core is installed in the valve chamber.

[0020] Preferably, the manual trigger switch further includes: a steel wire with one end connected to the manual control valve core; and a hand pull ring connected to the other end of the steel wire.

[0021] The electrically controlled fire extinguishing device includes an electrically controlled manual fire extinguishing mechanism connected to the electric agent spraying outlet of the gas cylinder device, which is used to manually connect the storage chamber of the gas cylinder device to the electric agent spraying outlet when there is power.

[0022] Preferably, the electrically controlled manual fire extinguishing mechanism includes: a manual solenoid valve switch electrically connected to the valve controller of the electrical control box on the tunneling machine; and a pneumatic solenoid directional valve electrically connected to the valve controller for connecting the electric agent spraying outlet and the atomizing nozzle.

[0023] Furthermore, the electrically controlled fire extinguishing device also includes an electrically controlled automatic fire extinguishing mechanism connected to the electric agent spraying outlet of the gas cylinder device, which is used to automatically connect the gas cylinder device's storage chamber with the electric agent spraying outlet when there is power.

[0024] Preferably, the energized automatic fire extinguishing mechanism includes: a flame detector installed on the tunneling machine for detecting the flame wavelength, which is electrically connected to the valve controller in the electrical control box on the tunneling machine.

[0025] Furthermore, it also includes a remote-controlled fire extinguishing device connected to the electric agent spraying outlet of the gas cylinder unit, which is used to automatically connect the gas cylinder unit's storage chamber and the electric agent spraying outlet via remote control when no one in the roadway discovers the fire.

[0026] Preferably, the remote-controlled fire extinguishing device includes: an operating box installed on the ground, which contains a remote control switch; a ground switch connected to the remote control switch; an underground ring network located in the roadway connected to the ground switch; and an underground switch connected to the underground ring network, which is electrically connected to the valve controller in the electrical control box on the tunneling machine.

[0027] Compared with existing technologies, the method and system for intelligent fire suppression of tunneling machines in this invention have the following beneficial effects:

[0028] The method for intelligent fire extinguishing of tunneling machines according to the present invention is safe and reliable. It can extinguish fires whether there is power or not. It has multiple triggering methods and can be activated quickly and promptly in the early stages of a fire to ensure that potential fire hazards are eliminated in time. The intelligent fire extinguishing system for tunneling machines of the present invention has a compact structure, occupies little space, can be flexibly arranged, does not affect the overall layout of the tunneling machine, and is easy to operate.

[0029] The present invention will now be described in detail with reference to the accompanying drawings. Attached Figure Description

[0030] Figure 1 This is a structural diagram of the intelligent fire extinguishing system for tunneling machines of the present invention;

[0031] Figure 2 This is a structural diagram of the gas cylinder device of the present invention;

[0032] Figure 3 This is a structural diagram of the pneumatic fire source detector of the present invention;

[0033] Figure 4 This is a structural diagram of the high-pressure atomizing nozzle of the present invention;

[0034] Figure 5 This is a schematic diagram of the remote control switch control principle.

[0035] Figure 6Schematic diagram of the arrangement of the gas cylinder device on the tunneling machine;

[0036] Figure 7 This is a flowchart illustrating the intelligent fire extinguishing method for tunneling machines according to the present invention. Detailed Implementation

[0037] like Figure 1 The diagram shows the structure of the intelligent fire extinguishing system for tunneling machines provided by this invention. As can be seen from the diagram, the intelligent fire extinguishing system for tunneling machines includes: a gas cylinder device installed on a tunneling machine used for tunneling coal mine roadways, with a manual agent spray outlet and an electric agent spray outlet for conveying the fire extinguishing agent stored in the gas cylinder device's storage chamber to the outside of the gas cylinder device; and an atomizing nozzle installed on the tunneling machine, which is respectively connected to the manual agent spray outlet and the electric agent spray outlet of the gas cylinder device, allowing the fire extinguishing agent stored in the storage chamber to be conveyed to the outside of the gas cylinder device. The extinguishing agent output from the spray outlet is sprayed outward through the atomizing nozzle; a non-electrically controlled fire extinguishing device is connected to the manual agent spray outlet of the gas cylinder device and is used to connect the gas cylinder device's storage chamber and the manual agent spray outlet in the absence of power, so that the extinguishing agent in the storage chamber is output through the manual agent spray outlet; an electrically controlled fire extinguishing device is connected to the electric agent spray outlet of the gas cylinder device and is used to connect the gas cylinder device's storage chamber and the electric agent spray outlet in the presence of power, so that the extinguishing agent in the storage chamber is output through the electric agent spray outlet.

[0038] Among them, the non-electric control fire extinguishing device includes a non-electric automatic control fire extinguishing mechanism that automatically connects the gas cylinder storage chamber to the manual agent spraying outlet when there is no power supply. In addition, it also includes a non-electric manual control fire extinguishing mechanism that manually connects the gas cylinder storage chamber to the manual agent spraying outlet when there is no power supply.

[0039] The electrically controlled fire extinguishing device includes an electrically controlled manual fire extinguishing mechanism for manually connecting the gas cylinder storage chamber to the electric agent spraying outlet when power is available, and an electrically controlled automatic fire extinguishing mechanism for automatically connecting the gas cylinder storage chamber to the electric agent spraying outlet when power is available.

[0040] Furthermore, the intelligent fire extinguishing system for tunneling machines of the present invention also includes a remote control fire extinguishing device for automatically connecting the storage chamber of the gas cylinder device with the electric agent spraying outlet via remote control when no one discovers the fire in the roadway.

[0041] This invention relates to an intelligent fire extinguishing system for tunneling machines. The system integrates a gas cylinder device onto the tunneling machine, resulting in a compact structure, minimal space occupation, and flexible layout without affecting the overall arrangement of the machine. It can extinguish fires on the tunneling machine regardless of whether power is available or not, by spraying extinguishing agents onto the fire source through the gas cylinder device and high-pressure atomizing nozzles. The system is easy to operate and safe and reliable. It employs three activation methods for the gas cylinder device: manual triggering, automatic triggering, and remote start. This allows for timely activation of the gas cylinder device in the early stages of a fire on or around the tunneling machine, enabling the spraying of extinguishing agents onto the fire source through high-pressure atomizing nozzles located throughout the machine, thus ensuring the timely elimination of fire hazards.

[0042] The structure of the intelligent fire extinguishing system for tunneling machines of the present invention will be described in detail below.

[0043] like Figure 1 As shown, the intelligent fire extinguishing system for the tunneling machine includes a gas cylinder device 1. This gas cylinder device 1 can be arranged according to the needs of the tunneling machine; for example, it can be arranged behind the driver's seat a (e.g., ...). Figure 6 (As shown). During assembly, the gas tank device 1 can be fixed to the steel plate behind the tunneling machine driver's seat a using bolts 14.

[0044] Among them, such as Figure 2 As shown, the gas cylinder device 1 has a cylinder body 1-1, the inner cavity of which contains fire extinguishing agent. A pneumatic control channel, a manual agent spraying channel, and an electric agent spraying channel are provided on the top of the cylinder body 1-1, extending through the top of the cylinder body. The outlets of the three channels are, respectively, a pneumatic control port located in the middle for connection to a pneumatic automatic fire source detector 12, manual agent spraying outlets 1-6 located on either side of the pneumatic control port for connection to a manual trigger switch 13, and an electric agent spraying outlet 1-2 for connection to pneumatic solenoid reversing valves 3 and 5. In addition, a connecting hole is provided on the top of the cylinder body to connect the pneumatic control channel and the manual agent spraying channel.

[0045] The gas cylinder device of the present invention, through a pneumatic control channel, a manual agent spraying channel, an electric agent spraying channel and related mechanisms, can realize multiple triggering modes such as manual triggering without power, automatic triggering without power, manual triggering with power, automatic triggering with power, and remote triggering.

[0046] In the absence of power, the automatic fire extinguishing mechanism can automatically connect the storage chamber of the gas cylinder device with the manual agent spraying outlet. It includes: a pneumatic automatic fire source detector 12 installed on the tunneling machine; a high-pressure air pipe 2 connected to the pneumatic automatic fire source detector; and a pneumatic triggering component installed at the pneumatic control port of the gas cylinder device.

[0047] The pneumatic automatic fire detector includes: an upper housing with a separated upper and lower chamber, with air inlets on both sides connecting the upper and lower chambers and air outlets connecting the lower chamber to the outside; a lower housing detachably connected to the bottom of the upper housing; a piston installed in the lower chamber of the upper housing; a fire-fighting glass bulb partially mounted on the lower housing and partially extending into the lower chamber of the upper housing; and a spring fitted around the fire-fighting glass bulb with its upper end connected to the lower end of the piston, the lower end of the spring fixed to the lower housing. Furthermore, the pneumatic automatic fire detector also includes: a plug installed at the agent addition port at the upper end of the upper housing; and a baffle and a locking clip installed below the fire-fighting glass bulb to fix it to the lower housing.

[0048] Specifically, such as Figure 3 As shown, the pneumatic fire detector consists of a plug 12-1, a reagent 12-2, a piston 12-3, a spring 12-4, a baffle 12-5, a hole clip 12-6, a fire-fighting glass bulb 12-7, a bolt 12-8, a lower housing 12-9, and an upper housing 12-10.

[0049] The upper housing 12-10 of the pneumatic automatic fire detector 12 is internally divided into an upper chamber and a lower chamber. The upper chamber contains an extinguishing agent 12-2 that easily generates a large amount of gas when heated, such as ammonium carbonate or ammonium bicarbonate. A threaded countersunk hole for threaded connection of a high-pressure gas pipe 2 is provided at the center of the top of the upper housing. The upper outlet of this countersunk hole communicates with the outside, and the lower part communicates with the lower chamber of the upper housing to form an air outlet. An agent addition port is provided at the top of the upper housing, located on one side of the countersunk hole, and an air inlet connecting the upper and lower chambers is provided on the side wall of the upper housing.

[0050] A piston 12-3 is installed in the lower cavity of the upper housing 12-10. The lower end of the piston 12-3 is bonded to a spring 12-4, and the other end of the spring 12-4 is bonded to the lower housing 12-9. The lower housing 12-9 is fastened to the upper housing 12-10 by bolts 12-8. The fire-fighting bulb 12-7 overcomes the tension of the spring 12-4 and presses against the piston 12-3, isolating the air inlet 12-12 and the air outlet 12-11 of the upper housing 12-10. The lower part of the fire-fighting bulb 12-7 is fixed by a baffle 12-5 and a clip 12-6. A plug 12-1 is fastened to the upper end of the upper housing 12-10 at the filling port for adding agent 12-2 into the upper cavity.

[0051] For ease of assembly, the upper shell can be a split structure, such as... Figure 3As shown, the device includes a top cover and a cylinder. The top cover has a countersunk hole extending axially from its center and a connecting hole on one side that communicates with the bottom of the countersunk hole. A chemical filling port penetrating the thickness of the top cover is formed on the other side of the countersunk hole. The cylinder is divided into a separate upper chamber and a lower chamber. The upper chamber is used to hold the chemical. A connecting hole is formed on one side of the cylinder wall of the upper chamber to form an air inlet. A hole is formed on the other side of the cylinder wall to form an air outlet that connects the lower chamber of the cylinder with the connecting hole and the countersunk hole on the top cover.

[0052] The pneumatic triggering assembly includes: a cylinder barrel installed on the tank body of the gas cylinder device and located above the pneumatic control port; a cylinder piston rod installed inside the cylinder barrel and extending from the pneumatic control port toward the pneumatic control channel inside the tank body; an air plug installed at the extended end of the cylinder piston rod; a detachable plug installed at the lower part of the pneumatic control channel of the tank body; and a spring installed below the air plug and above the plug. The plug has a vent hole in its center that communicates with the drug storage chamber of the tank body, and the pneumatic control channel is connected to the manual drug spraying outlet.

[0053] Specifically, such as Figure 2 As shown, the cylinder barrel 1-3 is fixed to the pneumatic control port on the tank body 1-1 by bolts 1-5 for connection with the pneumatic automatic fire source detector 12. A cylinder rod 1-4 is installed inside the cylinder barrel 1-3, and an air plug 1-11 is installed at the lower end of the cylinder rod 1-4. During assembly, the air plug 1-11 can be fixed to the cylinder rod 1-4 by nuts 1-9. A spring 1-10 is installed below the air plug 1-11, and a threaded plug 1-8 is fixed to the tank body 1-1 by threads, providing upward pressure to the spring 1-10. Under normal conditions, the spring 1-10 provides upward pressure to the air plug 1-11, isolating the agent chamber from the manual agent spraying outlet 1-6. A stepped through hole is provided at the top of the cylinder barrel 1-3, and the upper part of the stepped through hole is connected to the high-pressure air pipe 2 by a thread. The high-pressure air pipe 2 is connected to the pneumatic automatic fire source detector 12 by a thread through the pneumatic pipeline accessory 6. The lower part of the stepped through hole is connected to the inside of the cylinder barrel.

[0054] In the design, a boss protruding into the inner cavity is provided at the center of the inner wall of the top of the tank. A groove is opened at the center of the boss. The groove includes, from bottom to top, a first cylindrical groove, a second cylindrical groove with a smaller diameter than the first cylindrical groove, and a frustum-shaped groove with a gradually decreasing diameter from the second cylindrical groove upwards. The shape and size of the air plug are adapted to the frustum-shaped groove to be placed in the frustum-shaped groove, while the threaded plug is adapted to the first cylindrical groove to be fixed in the first cylindrical groove. Above the frustum-shaped groove is a through hole penetrating the top of the tank. The groove and the through hole form a pneumatic control channel on the tank. The cylinder is placed directly above the pneumatic control port and is connected to the inner cavity of the tank through the pneumatic control channel.

[0055] In the absence of power, the fire extinguishing mechanism can be manually connected between the gas cylinder storage chamber and the manual agent spraying outlet via a power-free manual control mechanism. This power-free manual control fire extinguishing mechanism can have the following structure: a manual trigger switch installed on the gas cylinder device; a manual control valve core for isolating the manual agent spraying outlet of the gas cylinder device from the storage chamber; and a steel wire connected at one end to the manual control valve core and a pull ring connected at the other end of the steel wire.

[0056] Specifically, such as Figure 3 As shown, a valve chamber is provided on one side of the gas cylinder device, perpendicularly connected to the manual agent spraying outlet. The valve chamber opening is located on the side wall of the cylinder. A portion of the manual control valve core 1-7 is housed within the valve chamber. By moving the manual control valve core 1-7 to different positions within the valve chamber, the agent chamber of the cylinder can be isolated or connected to the manual agent spraying outlet 1-6. The end of the manual control valve core 1-7 is connected to a steel wire 13-2 via a ring, and the other end of the steel wire 13-2 is connected to a pull ring 13-1. The manual agent spraying outlet 1-6 is connected to a high-pressure air pipe 2 via a thread, and the other end of the high-pressure air pipe is directly connected to the high-pressure atomizing nozzle 7. In the design, the connecting hole between the pneumatic control channel and the manual agent spraying channel can be located above the valve chamber.

[0057] like Figure 1 , Figure 4 As shown, the high-pressure atomizing nozzle can be one or multiple nozzles connected in series. The nozzle includes a nozzle body 7-2 and a two-way valve or three-way valve that is detachably connected (e.g., threaded connection) to the nozzle body for connection to the high-pressure air pipe 2. The nozzle body 7-2 has a nozzle hole in the center that is connected to the two-way valve or three-way valve. The nozzle hole includes a cylindrical converging section 7-1, a conical converging section 7-5, a secondary acceleration section 7-4, and a diffusion section 7-3 arranged sequentially from top to bottom. When the extinguishing agent enters the high-pressure atomizing nozzle through the high-pressure air pipe, the extinguishing agent is accelerated and sprayed out through the nozzle hole.

[0058] Among them, when there is power, the fire extinguishing mechanism can be manually controlled to connect the gas tank storage chamber and the electric agent spraying outlet through a live manual control. It includes: a manual solenoid valve switch electrically connected to the valve controller of the electrical control box on the tunneling machine; and a pneumatic solenoid reversing valve electrically connected to the valve controller, used to connect the electric agent spraying outlet and the atomizing nozzle.

[0059] When there is power, the extinguishing mechanism can be automatically connected to the gas cylinder storage chamber and the electric agent spraying outlet through the energized automatic control mechanism. This includes a flame detector installed on the tunneling machine for detecting the flame wavelength, which is electrically connected to the valve controller of the electrical control box on the tunneling machine.

[0060] In addition, when no one discovers the fire in the tunnel, a remote-controlled fire extinguishing device connected to the electric agent spray outlet can be used to automatically connect the gas cylinder storage chamber to the electric agent spray outlet. This remote-controlled fire extinguishing device includes: an operating box installed on the ground, which contains a remote control switch; a ground switch connected to the remote control switch; an underground ring network located in the tunnel connected to the ground switch; and an underground switch connected to the underground ring network, which is electrically connected to the valve controller of the electrical control box on the tunneling machine.

[0061] Specifically, such as Figure 1 , Figure 5 As shown, the electric agent spray outlet 1-2 is connected to the high-pressure air pipe 2 via a thread, and is connected to two parallel pneumatic solenoid directional valves 3 and 5 (i.e., the first pneumatic solenoid directional valve 3 and the second pneumatic solenoid directional valve 5) via a branch pneumatic pipeline (also a high-pressure air pipe). The air outlets of the two sets of pneumatic solenoid directional valves 3 and 5 are connected to the air supply pipeline connected to the manual agent spray outlet 1-6, and then connected to the high-pressure atomizing nozzle 7 via a high-pressure air pipe.

[0062] The manual solenoid valve switch 4 is connected to the electrical control box 8 via wire 9, and the 24V power supply 8-1 in the electrical control box 8 is turned on. The electrical control box 8 is connected to the first pneumatic solenoid directional valve 3 via wire 9, so that the solenoid valve switch 4 can control the first pneumatic solenoid directional valve 3. One or more sets of solenoid valve switches 4 can be arranged on the tunneling machine as needed.

[0063] The ultraviolet (or infrared) flame detector 10 is connected to the valve controller 8-2 in the electrical control box 8 via wire 9. The valve controller 8-2 is connected to the second pneumatic solenoid directional valve 5 via wire 9. When a fire occurs, the ultraviolet (or infrared) flame detector 10 identifies the flame using optical principles. The activation signal of the ultraviolet (or infrared) flame detector 10 opens the second pneumatic solenoid directional valve 5 through the valve controller 8-2, thereby controlling the second pneumatic solenoid directional valve 5 and causing the extinguishing agent to be sprayed out from the high-pressure atomizing nozzle 7 through the pneumatic pipeline.

[0064] The ground control box 11 provides a switch signal through a remote control switch 11-1, and transmits the IP signal to the underground ring network 17 through the ground switch 16, connects to the underground switch 18, and then converts the IP signal into an electrical signal through the underground gateway 19, and transmits the signal to the valve controller 8-2 of the electrical control box 8 through the wire 9.

[0065] In the event of a fire, the gas cylinder device 1 of this invention employs the following activation methods for fire extinguishing:

[0066] 1. The high-temperature flame causes the agent 12-2 inside the upper shell 12-10 of the pneumatic fire source detector 12 to decompose and generate high-pressure gas. The pressure in the air inlet of the upper shell 12-20 increases. When the temperature rises to the preset temperature, such as 141°C, the fire extinguishing glass bulb 12-7 reaches its limit temperature and breaks. The spring 12-4 loses its supporting force. Under the action of the spring tension and the high-pressure gas in the air inlet, the piston 12-3 falls. The air inlet and outlet of the upper shell are connected. The high-pressure gas is transmitted through the high-pressure gas pipe 2 to the cylinder barrel 1-3 on the gas tank device 1, pushing the cylinder piston rod 1-4. The air plug 1-11 separates from the tank body 1-1. The storage chamber is connected to the manual agent spraying outlet 1-6. The extinguishing agent is sprayed out from the high-pressure atomizing nozzle 7 through the high-pressure gas pipe 2 to extinguish the fire.

[0067] 2. When the tunneling machine user discovers a fire before the pneumatic fire source detector reacts, he / she can manually pull the manual trigger switch 13, and pull the manual control valve core 1-7 through the steel wire 13-2 to connect the storage chamber with the manual agent spraying outlet 1-6. The extinguishing agent is then sprayed out from the high-pressure atomizing nozzle 7 through the high-pressure air pipe 2 to extinguish the fire.

[0068] 3. When the ultraviolet flame detector (or infrared flame detector) 10 detects a flame under power, it gives a switching signal, which is transmitted to the valve controller 8-2 in the tunneling machine electrical control box 8 via the wire 9. The valve controller 8-2 controls the second pneumatic solenoid reversing valve 5 to change the valve position via the wire 9. The electric agent spraying outlet 1-2 is connected to the high-pressure atomizing nozzle 7, and the fire extinguisher realizes spray fire extinguishing.

[0069] 4. When the tunneling machine user discovers a fire, he can press the manual solenoid valve switch 4 to directly control the first pneumatic solenoid reversing valve 3 through the tunneling machine electrical control box 8. The first pneumatic solenoid reversing valve 3 changes its valve position, and the electric agent spray outlet 1-2 is connected to the high-pressure atomizing nozzle 7, so that the fire extinguisher can spray.

[0070] 5. When personnel on the ground discover a fire, they can press the remote control switch 11-1 of the control box 11 on the ground to provide a switch signal. The IP signal is transmitted to the underground ring network 17 through the ground switch 16, connected to the underground switch 18, and then converted into an electrical signal through the gateway 19. The signal is transmitted to the valve controller 8-2 of the electrical control box 8 through the wire 9. The valve controller 8-2 controls the second pneumatic solenoid reversing valve 5 to change the valve position through the wire 9. The electric agent spray outlet 1-2 is connected to the high-pressure atomizing nozzle 7, and the fire extinguisher is sprayed.

[0071] Among them, the first and second activation methods mentioned above enable automatic and manual activation of the gas cylinder device for fire extinguishing under no-power conditions, ensuring the safety of gas cylinder device 1 under any operating condition. The third and fourth activation methods enable automatic and manual activation of the gas cylinder device for fire extinguishing under energized conditions, and the fifth activation method enables remote control of the tunneling machine's fire extinguishing system. When a fire occurs in the product, the flame detector will automatically trigger the gas cylinder device, spraying extinguishing agent onto the equipment through high-pressure atomizing nozzles arranged throughout the product. The gas cylinder device can also be activated manually or remotely to spray the extinguishing agent.

[0072] Of the five activation methods, automatic activation allows the fire suppression system to start automatically even if personnel don't notice it in time, offering advantages in automation. Multiple pneumatic solenoid valve switches can be easily installed on the tunneling machine, ensuring personnel can quickly activate the fire extinguisher nearby. Manual activation ensures the fire extinguisher can still be safely activated even when power is off or the pneumatic fire detector malfunctions. Remote control is suitable for centralized remote control of various functions of the tunneling machine, allowing surface personnel to promptly assist in extinguishing fires underground when a fire is detected through the monitoring system in the tunnel. Each activation method has its advantages and complements each other. The combination of multiple activation methods makes the fire suppression system of this invention more intelligent, safe, and reliable, enabling timely and rapid fire suppression in the early stages of a fire, ensuring the timely elimination of fire hazards and guaranteeing the safety of the tunneling machine and coal mining in the tunnel.

[0073] In addition to providing the aforementioned intelligent fire extinguishing system for tunneling machines, this invention also provides a method for extinguishing fires using the aforementioned intelligent fire extinguishing system for tunneling machines, such as... Figure 7 The diagram shows a flowchart of the method of the present invention. As can be seen from the diagram, the method includes:

[0074] The gas cylinder device, which has both manual and electric spray outlets, is installed on the tunneling machine used for excavating coal mine roadways.

[0075] The atomizing nozzles installed on the tunneling machine are connected to the manual agent spraying outlet and the electric agent spraying outlet of the gas cylinder device, so that the extinguishing agent output through the manual agent spraying outlet or the electric agent spraying outlet is sprayed outward through the atomizing nozzles to extinguish the fire.

[0076] Connect the non-electrically controlled fire extinguishing device to the manual agent spraying outlet of the gas cylinder device so that when a fire occurs and there is no power, the storage chamber of the gas cylinder device can be connected to the manual agent spraying outlet, so that the fire extinguishing agent in the storage chamber can be output through the manual agent spraying outlet to extinguish the fire.

[0077] Connect the electrically controlled fire extinguishing device to the electric agent spraying outlet of the gas cylinder device so that when a fire occurs, the gas cylinder device's storage chamber and the electric agent spraying outlet can be connected when there is power, so that the fire extinguishing agent in the storage chamber can be output through the electric agent spraying outlet to extinguish the fire.

[0078] Furthermore, the remote-controlled fire extinguishing device will be connected to the electric agent spraying outlet of the gas cylinder device, so that when a fire occurs and no one in the roadway discovers the fire, the gas cylinder device's storage chamber and the electric agent spraying outlet can be automatically connected via remote control, allowing the fire extinguishing agent in the storage chamber to be output through the electric agent spraying outlet for fire extinguishing.

[0079] Specifically, the gas cylinder device 1 is arranged on the tunneling machine as needed, such as behind the tunneling machine driver's seat a. During assembly, the gas cylinder device 1 can be fixed to the steel plate behind the tunneling machine driver's seat a using bolts 14. The inner cavity of the tank body 1-1 of the gas cylinder device 1 contains fire extinguishing agent.

[0080] Among them, the gas tank device 1 and the like have the above-mentioned structure, which will not be repeated here.

[0081] The following assembly can be performed before or after securing the gas tank unit to the tunneling machine:

[0082] 1. Insert the manual control valve core of the manual trigger switch 13 into the valve chamber of the tank, and connect the manual control valve core to the hand pull ring with a steel wire. In the initial state, the manual control valve core should be able to block the passage between the storage chamber of the tank and the manual agent spraying outlet.

[0083] 2. Insert the cylinder piston rod into the pneumatic control channel and connect the bottom end of the piston rod to the air plug. Place a spring, a screw plug, etc. below the air plug. Cover the top of the piston rod with the cylinder barrel and fix the cylinder barrel to the top of the tank with bolts 1-5.

[0084] After the assembled gas cylinder device 1 is fixed on the tunneling machine, one end of the high-pressure air pipe is threaded onto the cylinder barrel, that is, the high-pressure air pipe is connected to the pneumatic control port, and the other end of the high-pressure air pipe is connected to the pneumatic automatic fire source detector. In application, multiple pneumatic automatic fire source detectors can be arranged on the high-pressure air pipe as needed. When connecting the high-pressure air pipe to the pneumatic automatic fire source detector, the high-pressure air pipe is threaded onto the air outlet of the upper housing of the pneumatic automatic fire source detector.

[0085] A high-pressure air hose is threadedly connected to the manual spray outlet of the gas cylinder device 1, and this high-pressure air hose is connected to a high-pressure atomizing nozzle. In application, multiple high-pressure atomizing nozzles can be installed on this high-pressure air hose via pneumatic piping fittings 6.

[0086] In addition, a high-pressure air pipe is threadedly connected to the electric agent spraying outlet of the tank. This high-pressure air pipe is connected to two parallel pneumatic solenoid directional valves (i.e., the first pneumatic solenoid directional valve 3 and the second pneumatic solenoid directional valve 5) through a branch pipe. The air outlets of the two pneumatic solenoid directional valves 3 and 5 can merge with the high-pressure air pipe connected to the manual agent spraying outlet, and then be connected to the high-pressure atomizing nozzle through an air pipe.

[0087] The first pneumatic solenoid directional valve 3 is electrically connected to the electrical control box 8 on the tunneling machine via a wire, and the manual solenoid valve switch 4 is also connected to the electrical control box 8 via a wire and connected to the 24V power supply 8-1 in the electrical control box 8, thereby realizing the control of the first pneumatic solenoid directional valve 3 by the manual solenoid valve switch 4. One or more sets of manual solenoid valve switches 4 can be arranged on the tunneling machine as needed.

[0088] The second pneumatic solenoid directional valve 5 is connected to the valve controller 8-2 in the electrical control box 8 via wire 9. The ultraviolet flame detector 10 (or infrared flame detector) is also connected to the valve controller 8-2 via wire 9. When a fire occurs, the ultraviolet (or infrared) flame detector 10 identifies the flame using optical principles. The activation signal of the ultraviolet (or infrared) flame detector 10 opens the pneumatic solenoid directional valve 5 through the valve controller 8-2, thereby controlling the pneumatic solenoid directional valve 5 and causing the extinguishing agent to be sprayed out from the high-pressure atomizing nozzle 7 through the pneumatic pipeline.

[0089] In addition, the valve controller 8-2 of the electrical control box 8 is connected to the remote control device. Specifically, the ground operation box 11 provides a switching signal through a remote control switch 11-1, and transmits the IP signal to the underground ring network 17 through the ground switch 16. The underground ring network 17 is connected to the underground switch 18, and then the IP signal is converted into an electrical signal through the underground gateway 19, and transmitted to the valve controller 8-2 of the electrical control box 8 through the wire 9.

[0090] Using the method of this invention, the gas cylinder device can be activated by any of the following methods: manual triggering with or without power, automatic triggering with or without power, or remote triggering. In the event of a fire in the tunneling machine, the gas cylinder device will be activated in a timely manner and fire extinguishing agent will be sprayed onto the equipment through high-pressure atomizing nozzles arranged throughout the tunneling machine. This ensures that the fire can be detected and extinguished in its early stages, making the tunneling machine more intelligent, safe, and reliable during use.

[0091] Although the present invention has been described in detail above, the present invention is not limited thereto. Those skilled in the art can make modifications based on the principles of the present invention. Therefore, all modifications made in accordance with the principles of the present invention should be understood as falling within the protection scope of the present invention.

Claims

1. An intelligent fire extinguishing system for tunneling machines, comprising: A gas cylinder device installed on a tunneling machine used for excavating coal mine roadways. The gas cylinder device has a tank body with an inner cavity containing fire extinguishing agent. The top of the tank body has a pneumatic control channel with a pneumatic control port, a manual agent spraying channel with a manual agent spraying outlet, an electric agent spraying channel with an electric agent spraying outlet, and a connecting hole for connecting the pneumatic control channel and the manual agent spraying channel. A valve chamber is opened on one side of the tank body and is perpendicularly connected to the manual agent spraying outlet. A part of the manual control valve core is installed in the valve chamber. The valve chamber opening is located on the side wall of the tank body, and the connecting hole is located above the valve chamber. The atomizing nozzles installed on the tunneling machine are respectively connected to the manual agent spraying outlet and the electric agent spraying outlet of the gas cylinder device; A non-electrically controlled fire extinguishing device includes: a non-electrically controlled automatic fire extinguishing mechanism connected to the pneumatic control port of a gas cylinder device, used to automatically connect the gas cylinder device's storage chamber to the manual agent spraying outlet in the absence of power; the non-electrically controlled automatic fire extinguishing mechanism includes a pneumatic automatic fire source detector installed on a tunneling machine, a high-pressure gas pipe connected to the pneumatic automatic fire source detector, and a pneumatic triggering component installed at the pneumatic control port of the gas cylinder device; the non-electrically controlled fire extinguishing device also includes a non-electrically controlled manual fire extinguishing mechanism connected to the manual agent spraying outlet of the gas cylinder device, used to manually connect the gas cylinder device's storage chamber to the manual agent spraying outlet in the absence of power; the non-electrically controlled manual fire extinguishing mechanism includes a manual trigger switch installed on the gas cylinder device, and has a manual control valve core for isolating the manual agent spraying outlet of the gas cylinder device from the storage chamber; An electrically controlled fire extinguishing device includes: an electrically controlled manual fire extinguishing mechanism connected to the electrically operated agent spraying outlet of a gas cylinder device, for manually connecting the storage chamber of the gas cylinder device to the electrically operated agent spraying outlet when power is available; and an electrically controlled automatic fire extinguishing mechanism connected to the electrically operated agent spraying outlet of the gas cylinder device, for automatically connecting the storage chamber of the gas cylinder device to the electrically operated agent spraying outlet when power is available.

2. The intelligent fire extinguishing system for tunneling machines according to claim 1 further includes a remote control fire extinguishing device connected to the electric agent spraying outlet of the gas cylinder device, used to automatically connect the storage chamber of the gas cylinder device and the electric agent spraying outlet through remote control when no one discovers the fire in the roadway.

3. A method for achieving intelligent fire suppression for a tunneling machine using the intelligent fire suppression system described in claim 1 or 2, comprising: The gas cylinder device is installed on a tunneling machine used for excavating coal mine roadways. The gas cylinder device has a tank body with an inner cavity containing fire extinguishing agent. The top of the tank body has a pneumatic control channel with a pneumatic control port, a manual agent spraying channel with a manual agent spraying outlet, an electric agent spraying channel with an electric agent spraying outlet, and a connecting hole for connecting the pneumatic control channel and the manual agent spraying channel. A valve chamber is opened on one side of the tank body, which is perpendicular to the manual agent spraying outlet. A part of the manual control valve core is placed in the valve chamber. The valve chamber opening is located on the side wall of the tank body, and the connecting hole is located above the valve chamber. The atomizing nozzles installed on the tunneling machine are connected to the manual agent spraying outlet and the electric agent spraying outlet of the gas cylinder device, so that the extinguishing agent output through either outlet can be sprayed outward through the atomizing nozzle to extinguish the fire. Connect the non-electrically controlled fire extinguishing device to the manual agent spraying outlet of the gas cylinder device so that when a fire occurs and there is no power, the gas cylinder device's storage chamber and the manual agent spraying outlet can be automatically or manually connected, so that the fire extinguishing agent in the storage chamber can be output through the manual agent spraying outlet for fire extinguishing. Connect the electrically controlled fire extinguishing device to the electric agent spray outlet of the gas cylinder device so that when a fire occurs, the gas cylinder device's storage chamber and the electric agent spray outlet can be automatically or manually connected when there is power, so that the fire extinguishing agent in the storage chamber can be output through the electric agent spray outlet to extinguish the fire.

4. The method according to claim 3 further includes connecting the remote-controlled fire extinguishing device to the electric agent spraying outlet of the gas cylinder device, so that when a fire occurs and no one in the roadway discovers the fire, the gas cylinder device's storage chamber and the electric agent spraying outlet can be automatically connected via remote control, so that the fire extinguishing agent in the storage chamber can be output through the electric agent spraying outlet for fire extinguishing.

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