Pulse-coupled aerosol fire extinguishing device and method for coping with explosion and high-temperature situations

Abstract

The present invention discloses a pulse-coupled aerosol fire extinguishing device and method for dealing with explosion and high-temperature situations, including an inner housing and an outer housing. A fire extinguishing agent column is provided inside the inner housing. An inner spray nozzle is opened at the front end of the inner housing, and an outer spray nozzle is opened at the front end of the outer housing. The end face of the fire extinguishing agent column contacts a first ignition head. The first starting wire of the first ignition head passes through the front end of the inner housing and is connected to the output end of a piezoelectric ceramic. The piezoelectric ceramic is installed in a pressure relief groove at the front end of the inner housing. A glass bulb temperature-sensing percussion device is provided above the piezoelectric ceramic. Pulse fire extinguishing agent is filled between the outer side of the inner housing and the inner side of the outer housing. The top surface of the pulse fire extinguishing agent contacts a second ignition head. The second starting wire of the second ignition head is connected to a vibration switch. A communication hole is opened on the lower side wall of the inner housing. The present invention solves the problem of continuous suppression after explosion or thermal runaway in the fire extinguishing area and achieves a good explosion suppression effect.

Description

Technical Field

[0001] The present invention relates to the field of fire fighting technology, and specifically refers to a pulse-coupled aerosol fire extinguishing device and method for dealing with explosion and high temperature situations. Background Art

[0002] Aerosol fire extinguishing devices have been widely used due to their excellent fire extinguishing efficiency and environmental friendliness. However, for energy storage stations and new energy application scenarios, it is difficult for traditional aerosol fire extinguishing devices to achieve the effect of rapid fire extinguishing. Taking the battery in an energy storage station as an example, when it explodes, it is necessary to quickly extinguish the fire. However, the traditional aerosol fire extinguishing device releases the fire extinguishing substance slowly, which is difficult to meet this requirement. Therefore, researchers have developed a pulsed fire extinguishing device. The main feature of the pulsed aerosol fire extinguishing device is its fast fire extinguishing speed. The fire extinguishing medium can be instantaneously sprayed to achieve rapid fire extinguishing. However, even if the fire is extinguished, once the battery explodes, it is uncontrollable, and the battery will still continuously generate high temperature and explosive gases. Therefore, continuous suppression is still required after the fire is extinguished. When the battery in the energy storage station does not explode but only undergoes thermal runaway, it is easy to generate high temperature and open fire. The way of instantaneously extinguishing the fire by the pulsed fire extinguishing device is based on its instant deflagration. This way of instant deflagration is also likely to cause the explosive gas to explode accordingly, making the fire extinguishing process become a process of assisting the fire.

[0003] In addition, some aerosol fire extinguishing devices use a thermal sensitive wire as the detection and activation structure, which can be done without adding additional electronic detection equipment. However, the thermal sensitive wire itself has certain dangers and environmental pollution, and it is easy to ignite the explosive gas in the energy storage station. Therefore, a special activation mechanism is needed to solve this problem. Summary of the Invention

[0004] The purpose of the present invention is to overcome the above deficiencies and provide a pulse-coupled aerosol fire extinguishing device and method for dealing with explosion and high temperature situations to solve the problems raised in the background art.

[0005] To solve the above technical problems, the technical solution adopted by the present invention is: A pulse-coupled aerosol fire extinguishing device for dealing with explosion and high temperature situations, including an inner shell and an outer shell. A fire extinguishing agent column is arranged inside the inner shell. An inner spray port is opened at the front end of the inner shell, and an outer spray port is opened at the front end of the outer shell. The end face of the fire extinguishing agent column contacts a first ignition head. The first activation wire of the first ignition head passes through the front end of the inner shell and is connected to the output end of a piezoelectric ceramic. The piezoelectric ceramic is installed in a pressure relief groove at the front end of the inner shell. A glass bulb temperature-sensitive percussion device is arranged above the piezoelectric ceramic. Pulse fire extinguishing agent is filled between the outer side of the inner shell and the inner side of the outer shell. The top surface of the pulse fire extinguishing agent contacts a second ignition head. The second activation wire of the second ignition head is connected to a vibration switch. A communication hole is opened on the lower side wall of the inner shell.

[0006] Preferably, the glass bulb temperature-sensing percussion device cooperates with the pressure relief groove through the installation cylinder body. The outer side of the installation cylinder body contacts the inner side of the pressure relief groove, and a piezoelectric ceramic is arranged below the inner side of the installation cylinder body.

[0007] Preferably, the glass bulb temperature-sensing percussion device includes an impact rod arranged above the inner side of the installation cylinder body. The top of the impact rod contacts the inner top of the installation cylinder body. An impact disc is arranged at the bottom of the impact rod. A compression spring is arranged between the upper surface of the impact disc and the top of the installation cylinder body. The compression spring passes through the surface of the impact rod. The lower surface of the impact disc contacts the top of the glass bulb, and the bottom of the glass bulb contacts the top of the piezoelectric ceramic. A plurality of hollow slots are arranged on the side of the installation cylinder body near the glass bulb area.

[0008] Preferably, limiting grooves are arranged on both the upper side and the lower side of the glass bulb.

[0009] Preferably, the installation cylinder body is embedded in the front end of the outer casing. The upper side of the hollow slot is located outside the outer casing, and the lower side of the hollow slot is located inside the outer casing.

[0010] Preferably, both the first ignition head and the second ignition head are embedded in the ignition charge packet. An aerosol generating agent powder is arranged in the ignition charge packet. The fire extinguishing agent column is a columnar structure pressed by the aerosol generating agent powder, and the pulsed fire extinguishing agent is the aerosol generating agent powder.

[0011] Preferably, the first ignition head is a non-bridge ignition head structure; the second ignition head is a bridge ignition head structure, and its second starting wire is also externally connected to a power supply.

[0012] Preferably, the front end of the inner casing is in threaded cooperation with the front cover. An inner spray port and a pressure relief groove are arranged on the front cover. A diaphragm is arranged on the surface of the inner spray port. The front end of the outer casing is in threaded cooperation with the upper cover. An outer spray port is arranged on the upper cover. A diaphragm is arranged on the surface of the outer spray port.

[0013] In addition, the present invention also discloses a fire extinguishing method for the pulsed coupled aerosol fire extinguishing device for coping with explosion and high-temperature situations, which includes the following steps:

[0014] S1: When an explosion occurs in the fire extinguishing area, the vibration switch senses the vibration signal to close the circuit. The circuit where the second ignition head is located is connected, and the second ignition head works to ignite the pulsed fire extinguishing agent, and high-temperature fire extinguishing substances are ejected from the outer spray port, playing the role of early explosion suppression.

[0015] S2: After the pulsed fire extinguishing agent is activated to generate high-temperature substances, the glass bulb expands and breaks by sensing the high temperature through the lower side of the hollow slot, thereby releasing the limiting effect on the impact disc. Under the action of the elastic force of the compression spring, the impact disc moves downward and impacts the piezoelectric ceramic.

[0016] S3: The piezoelectric ceramic starts up after being impacted and generates an induced current, which is transmitted to the first ignition head through the first starting line to make it work, thereby igniting the fire extinguishing agent column, completing the starting process. The fire extinguishing agent column burns to produce fire extinguishing material, which is ejected from the inner nozzle and the outer nozzle in turn, achieving the effect of later explosion suppression.

[0017] The present invention also discloses another fire extinguishing method of the pulse coupled aerosol fire extinguishing device for dealing with explosion and high temperature conditions, which comprises the following steps:

[0018] S1: When thermal runaway occurs in the fire extinguishing area, the temperature inside it will rise and generate a large amount of combustible gas. The glass bulb will expand and break when it senses the high temperature through the upper side of the hollow groove, thereby releasing the limiting effect on the impact plate. Under the action of the compression spring force, the impact plate moves downward and hits the piezoelectric ceramic;

[0019] S2: The piezoelectric ceramic starts up after being impacted and generates an induced current, which is transmitted to the first ignition head through the first starting line to make it work, thereby igniting the top of the fire extinguishing agent column, completing the starting process. The fire extinguishing agent column burns to produce fire extinguishing substances, which are ejected from the inner nozzle and the outer nozzle in turn, filling the energy storage station and diluting the combustible gas, playing the role of early explosion suppression;

[0020] S3: When the fire extinguishing agent column burns from the top to the connecting hole on the lower side, the connecting hole transfers the heat generated by the combustion to the pulse fire extinguishing agent. The pulse fire extinguishing agent burns instantly and generates impact force. The fire extinguishing material is ejected instantly from the outer nozzle to further disperse the combustible gas, which plays a role in late explosion suppression.

[0021] Beneficial effects of the present invention:

[0022] When an explosion occurs in the fire extinguishing area of ​​the present invention, the pulse fire extinguishing agent is first activated to quickly extinguish the fire and put out the flame, and then the fire extinguishing agent column is further activated to continuously release the aerosol fire extinguishing agent. The suppression process can continue after the flame is extinguished, thereby achieving a good explosion suppression effect.

[0023] When thermal runaway occurs in the fire extinguishing area of ​​the present invention, since the pulse fire extinguishing agent is not directly started first, the pulse fire extinguishing agent will not cause the explosive gas to explode in an instantaneous deflagration manner. Instead, the pulse fire extinguishing agent is ignited after a period of time. At this time, the explosive gas in the outside has been diluted for a period of time by the fire extinguishing substance produced by the combustion of the previous fire extinguishing agent column. Therefore, it is not easy to explode with the deflagration of the pulse fire extinguishing agent. In addition, the fire extinguishing substance is instantly ejected from the external nozzle to further disperse the combustible gas, thereby achieving the effect of late explosion suppression.

[0024] The device of the present invention can carry out corresponding fire extinguishing processes for two situations of explosion and thermal runaway occurring in the fire extinguishing area (such as inside an energy storage station or inside a new energy battery box). It couples a pulse fire extinguishing device and an aerosol medicine column fire extinguishing device well. It has a concise structure and high fire extinguishing efficiency. It solves the problem of continuous suppression after explosion or thermal runaway in the fire extinguishing area and achieves a good explosion suppression effect.

[0025] Through the installation cylinder body, piezoelectric ceramic and glass bulb temperature-sensing percussion device arranged in the area where the pressure relief groove is located, the present invention integrates the functions of detection, activation and pressure relief in a relatively small area. It has a concise structure, sensitive detection and safe activation, and is not easy to ignite the explosive gas in the energy storage station; in the case of an abnormal sudden increase in pressure, the piezoelectric ceramic and the installation cylinder body can be ejected in time to expose the pressure relief groove, realizing the pressure relief process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic structural diagram of a pulse-coupled aerosol fire extinguishing device and method for dealing with explosion and high-temperature situations;

[0027] Figure 2 is Figure 1 an enlarged structural diagram of the area where the glass bulb temperature-sensing percussion device is located in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0029] As Figure 1 and 2 shown, a pulse-coupled aerosol fire extinguishing device for dealing with explosion and high-temperature situations includes an inner housing 1 and an outer housing 9. A fire extinguishing agent medicine column 2 is arranged inside the inner housing 1. An inner spray port 3 is opened at the front end of the inner housing 1, and an outer spray port 13 is opened at the front end of the outer housing 9. The end face of the fire extinguishing agent medicine column 2 is in contact with a first ignition head 4. The first start wire 4.1 of the first ignition head 4 passes through the front end of the inner housing 1 and is connected to the output end of a piezoelectric ceramic 5. The piezoelectric ceramic 5 is installed in a pressure relief groove 6 at the front end of the inner housing 1. A glass bulb temperature-sensing percussion device 7 is arranged above the piezoelectric ceramic 5. A pulse fire extinguishing agent 10 is filled between the outer side of the inner housing 1 and the inner side of the outer housing 9. The top surface of the pulse fire extinguishing agent 10 is in contact with a second ignition head 11. The second start wire 11.1 of the second ignition head 11 is connected to a vibration switch 12. A communication hole 14 is opened on the lower side wall of the inner housing 1.

[0030] Preferably, the glass bulb temperature-sensing percussion device 7 cooperates with the pressure relief groove 6 through the installation cylinder 8. The outer side of the installation cylinder 8 contacts the inner side of the pressure relief groove 6, and a piezoelectric ceramic 5 is arranged below the inner side of the installation cylinder 8. In this embodiment, the installation cylinder 8 can play two roles. One is to facilitate the installation process of the glass bulb temperature-sensing percussion device 7 in the pressure relief groove 6. The second is to facilitate the limitation of the piezoelectric ceramic 5. The third is to facilitate the separation of the piezoelectric ceramic 5 and the installation cylinder 8 from the pressure relief groove 6 during the pressure relief process, so as to expose the pressure relief channel.

[0031] Preferably, the glass bulb temperature-sensing percussion device 7 includes an impact rod 7.1 arranged above the inner side of the installation cylinder 8. The top of the impact rod 7.1 contacts the inner top of the installation cylinder 8. An impact disc 7.3 is arranged at the bottom of the impact rod 7.1. A compression spring 7.4 is arranged between the upper surface of the impact disc 7.3 and the top of the installation cylinder 8. The compression spring 7.4 penetrates through the surface of the impact rod 7.1. The lower surface of the impact disc 7.3 contacts the top of the glass bulb 7.5, and the bottom of the glass bulb 7.5 contacts the top of the piezoelectric ceramic 5. A plurality of hollow slots 7.2 are formed on the side of the installation cylinder 8 near the glass bulb 7.5. In this embodiment, when a fire occurs, the glass bulb 7.5 expands and breaks by sensing the high temperature through the hollow slots 7.2, thus releasing the limiting effect on the impact disc 7.3. Under the action of the elastic force of the compression spring 7.4, the impact disc 7.3 moves downward and impacts the piezoelectric ceramic 5. After being impacted, the piezoelectric ceramic 5 is activated to generate an induced current, which is conducted to the first igniter 4 through the first starting wire 4.1 to make it work, thereby igniting the fire extinguishing agent column 2 and completing the starting process.

[0032] Preferably, limiting grooves 7.6 are arranged on both the upper and lower sides of the glass bulb 7.5. The glass bulb 7.5 can be limited through the limiting grooves 7.6 to prevent it from shaking horizontally.

[0033] Preferably, the installation cylinder 8 is embedded in the front end of the outer shell 9. The upper side of the hollow slot 7.2 is located outside the outer shell 9, and the lower side of the hollow slot 7.2 is located inside the outer shell 9. After such a design, it can be ensured that the upper side of the hollow slot 7.2 can cause the glass bulb 7.5 to expand and rupture after being exposed to the high temperature generated by the fire in the high-temperature external fire extinguishing area outside the outer shell 9, or the lower side of the hollow slot 7.2 can cause the glass bulb 7.5 to expand and rupture after being exposed to the high temperature generated by the start of the pulse fire extinguishing agent 10 inside the outer shell 9. These two methods respectively respond to the fire extinguishing processes in two situations of high temperature and explosion.

[0034] Preferably, both the first igniter head 4 and the second igniter head 11 are embedded in an ignition charge packet, and an aerosol generating agent powder is provided in the ignition charge packet; the fire extinguishing agent column 2 is a columnar structure pressed from an aerosol generating agent powder, and the pulsed fire extinguishing agent 10 is an aerosol generating agent powder. In this embodiment, the ignition charge packet serves as an ignition agent, which embeds the igniter head therein. After the igniter head is activated, it ignites the aerosol generating agent in the ignition charge packet, thereby quickly generating heat to ignite the nearby fire extinguishing agent column 2 or the pulsed fire extinguishing agent 10, which greatly improves the success probability of the igniter head activation.

[0035] Preferably, the first igniter head 4 is a non-bridged igniter head structure; the second igniter head 11 is a bridged igniter head structure, and its second starting wire 11.1 is also externally connected to a power source. In this embodiment, the first igniter head 4 adopts a non-bridged first igniter head. Since there is a certain gap between the two ignition wires of the non-bridged igniter head, an arc jumping phenomenon will occur after providing a certain current or induced current to start the ignition agent in contact, completing the starting process; while the bridged igniter head uses the current passing through the bridge wire to generate heat to ignite the flammable agent wrapped on the surface of the bridge wire. Therefore, when the vibration switch 12 is vibrated and the circuit is closed, the circuit where the second igniter head 11 is located is connected, and the power supply makes the bridge wire generate heat to ignite the flammable agent wrapped on the surface of the bridge wire, completing the starting process.

[0036] Preferably, the front end of the inner housing 1 is in threaded cooperation with the front cover 1.1. The front cover 1.1 is provided with an inner spray port 3 and a pressure relief groove 6, and a diaphragm is provided on the surface of the inner spray port 3; the front end of the outer housing 9 is in threaded cooperation with the upper cover 9.1. The upper cover 9.1 is provided with an outer spray port 13, and a diaphragm is provided on the surface of the outer spray port 13. After the diaphragms are provided on the inner spray port 3 and the outer spray port 13, during the normal storage and transportation of the fire extinguishing device, it can prevent moisture in the air from entering the outer housing 9 through the outer spray port 13, causing the pulsed fire extinguishing agent 10 to absorb moisture, and can also prevent the pulsed fire extinguishing agent 10 from entering the inner housing 1 through the inner spray port 3; in addition, during the fire extinguishing process, when the internal air pressure in the inner housing 1 or the outer spray port 13 increases, it is easy to break through the diaphragm without affecting the normal spraying process.

[0037] In addition, the present invention also discloses a fire extinguishing method for the above-mentioned pulsed coupled aerosol fire extinguishing device for dealing with explosion and high-temperature situations, which includes the following steps:

[0038] S1: When an explosion occurs in the fire extinguishing area, the vibration switch 12 senses the vibration signal and closes the circuit, the circuit where the second igniter head 11 is located is connected, the second igniter head 11 works to ignite the pulsed fire extinguishing agent 10, and high-temperature fire extinguishing substances are ejected from the outer spray port 13, achieving the effect of early explosion suppression;

[0039] S2: After the pulse extinguishing agent 10 is activated and generates high-temperature substances, the glass bulb 7.5 expands and breaks through the lower side of the hollow groove 7.2 to sense the high temperature, thereby releasing the limiting effect on the impact plate 7.3. Under the action of the elastic force of the compression spring 7.4, the impact plate 7.3 moves downward and impacts the piezoelectric ceramic 5;

[0040] S3: The piezoelectric ceramic 5 is activated after being impacted and generates an induced current, which is conducted to the first ignition head 4 through the first starting line 4.1 to make it work, thereby igniting the fire extinguishing agent column 2, completing the startup process, and the fire extinguishing agent column 2 burns to produce fire extinguishing substances, which are ejected from the inner nozzle 3 and the outer nozzle 13 in turn, playing a role in suppressing explosion in the later stage. In this case, after being activated by the pulse fire extinguishing agent first, the fire can be quickly extinguished, and then the fire extinguishing agent column is further activated to release the aerosol fire extinguishing agent, which can continue to suppress the flame after the flame is extinguished, playing a good explosion suppression effect.

[0041] The present invention also discloses another fire extinguishing method of the pulse coupled aerosol fire extinguishing device for dealing with explosion and high temperature conditions, which comprises the following steps:

[0042] S1: When thermal runaway occurs in the fire extinguishing area, the temperature inside it will rise and a large amount of combustible gas will be generated. The glass bulb 7.5 will expand and break when it senses the high temperature through the upper side of the hollow groove 7.2, thereby releasing the limiting effect on the impact plate 7.3. Under the action of the elastic force of the compression spring 7.4, the impact plate 7.3 moves downward and impacts the piezoelectric ceramic 5;

[0043] S2: The piezoelectric ceramic 5 is started after being impacted and generates an induced current, which is conducted to the first ignition head 4 through the first starting line 4.1 to make it work, thereby igniting the top of the fire extinguishing agent column 2, completing the starting process, and the fire extinguishing agent column 2 burns to produce fire extinguishing substances, which are ejected from the inner nozzle 3 and the outer nozzle 13 in turn, which fills the energy storage station and dilutes the combustible gas, playing the role of early explosion suppression;

[0044] S3: When the fire extinguishing agent column 2 burns from the top to the connecting hole 14 on the lower side, the connecting hole 14 transfers the heat generated by the combustion to the pulse fire extinguishing agent 10, and the pulse fire extinguishing agent 10 burns instantly to generate impact force, and the fire extinguishing material is ejected instantly from the outer nozzle 13 to further disperse the combustible gas, which has the effect of suppressing explosion in the later stage. In this case, since S1 does not directly start the pulse fire extinguishing agent 10 first, the instantaneous deflagration of the pulse fire extinguishing agent 10 will not cause the explosive gas to explode. After a period of time, in S3, the pulse fire extinguishing agent 10 is ignited. At this time, the explosive gas in the outside world has been diluted by the fire extinguishing material generated by the combustion of the fire extinguishing agent column 2 in the early stage, so it is not easy to explode with the deflagration of the pulse fire extinguishing agent 10.

[0045] The above embodiments are only the preferred technical solutions of the present invention and should not be regarded as limitations on the present invention. In the present application, the embodiments and the features in the embodiments can be arbitrarily combined with each other without conflict. The protection scope of the present invention shall be the technical solutions recited in the claims, including the equivalent replacement solutions of the technical features in the technical solutions recited in the claims. That is, the equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A pulse-coupled aerosol fire extinguishing device for dealing with explosion and high-temperature situations, comprising an inner housing (1) and an outer housing (9). A fire extinguishing agent column (2) is provided inside the inner housing (1). An inner spray nozzle (3) is provided at the front end of the inner housing (1), and an outer spray nozzle (13) is provided at the front end of the outer housing (9); it is characterized in that: The end face of the fire extinguishing agent charge (2) is in contact with the first ignition head (4). The first starting wire (4.1) of the first ignition head (4) passes through the front end of the inner shell (1) and is connected to the output end of the piezoelectric ceramic (5). The piezoelectric ceramic (5) is installed in the pressure relief groove (6) at the front end of the inner shell (1). A glass bulb thermal percussion device (7) is arranged above the piezoelectric ceramic (5). Pulse fire extinguishing agent (10) is filled between the outer side of the inner shell (1) and the inner side of the outer shell (9). The top surface of the pulse fire extinguishing agent (10) is in contact with the second ignition head (11). The second starting wire (11.1) of the second ignition head (11) is connected to the vibration switch (12). A communication hole (14) is formed in the lower side wall of the inner shell (1). The glass bulb thermal percussion device (7) is matched with the pressure relief groove (6) through the installation cylinder (8). The outer side of the installation cylinder (8) is in contact with the inner side of the pressure relief groove (6). The piezoelectric ceramic (5) is arranged below the inner side of the installation cylinder (8). The installation cylinder (8) is embedded in the front end of the outer shell (9). The upper side of the hollow groove (7.2) is located outside the outer shell (9), and the lower side of the hollow groove (7.2) is located inside the outer shell (9). The fire extinguishing agent charge (2) is a charge structure pressed from aerosol generating agent powder. The pulse fire extinguishing agent (10) is aerosol generating agent powder.

2. The pulse-coupled aerosol fire extinguishing device for dealing with explosion and high-temperature situations according to claim 1, characterized in that: The glass bulb thermal percussion device (7) includes an impact rod (7.1) arranged above the inner side of the installation cylinder (8). The top of the impact rod (7.1) is in contact with the inner top of the installation cylinder (8). An impact disc (7.3) is arranged at the bottom of the impact rod (7.1). A compression spring (7.4) is arranged between the upper surface of the impact disc (7.3) and the top of the installation cylinder (8). The compression spring (7.4) passes through the surface of the impact rod (7.1). The lower surface of the impact disc (7.3) is in contact with the top of the glass bulb (7.5). The bottom of the glass bulb (7.5) is in contact with the top of the piezoelectric ceramic (5). A plurality of hollow grooves (7.2) are formed in the side part of the installation cylinder (8) near the glass bulb (7.5).

3. The pulse-coupled aerosol fire extinguishing device for dealing with explosion and high-temperature situations according to claim 2, characterized in that: Limit grooves (7.6) are arranged on both the upper side and the lower side of the glass bulb (7.5).

4. The pulse-coupled aerosol fire extinguishing device for dealing with explosion and high-temperature situations according to claim 1, characterized in that: Both the first ignition head (4) and the second ignition head (11) are embedded in the ignition charge packet. The ignition charge packet contains aerosol generating agent powder.

5. The pulse-coupled aerosol fire extinguishing device for dealing with explosion and high-temperature situations according to claim 1, characterized in that: The first ignition head (4) is a non-bridge ignition head structure; the second ignition head (11) is a bridge ignition head structure, and its second starting wire (11.1) is also externally connected to a power source.

6. The pulse-coupled aerosol fire extinguishing device for dealing with explosion and high-temperature situations according to claim 1, characterized in that: The front end of the inner shell (1) is in threaded cooperation with the front cover (1.1). An inner spray port (3) and a pressure relief groove (6) are formed on the front cover (1.1). A diaphragm is arranged on the surface of the inner spray port (3). The front end of the outer shell (9) is in threaded cooperation with the upper cover (9.1). An outer spray port (13) is formed on the upper cover (9.1). A diaphragm is arranged on the surface of the outer spray port (13).

7. A fire extinguishing method for the pulse-coupled aerosol fire extinguishing device for dealing with explosion and high-temperature situations according to any one of claims 1 to 6, characterized in that: It includes the following steps: S1: When an explosion occurs in the fire extinguishing area, the vibration switch (12) senses the vibration signal to close the circuit, the circuit where the second ignition head (11) is located is connected, the second ignition head (11) works to ignite the pulsed fire extinguishing agent (10), and the high-temperature fire extinguishing substance is ejected from the outer nozzle (13) to achieve the effect of early explosion suppression; S2: After the pulsed fire extinguishing agent (10) is activated to generate high-temperature substances, the glass bulb (7.5) expands and breaks by sensing the high temperature on the lower side through the hollow groove (7.2), thereby releasing the limiting effect on the impact disc (7.3). Under the action of the elastic force of the compression spring (7.4), the impact disc (7.3) moves downward and impacts the piezoelectric ceramic (5); S3: After being impacted, the piezoelectric ceramic (5) is activated to generate an induced current, which is conducted to the first ignition head (4) through the first starting wire (4.1) to make it work, thereby igniting the fire extinguishing agent column (2), completing the starting process. The fire extinguishing agent column (2) burns to generate fire extinguishing substances, which are ejected from the inner nozzle (3) and the outer nozzle (13) in sequence to achieve the effect of late explosion suppression.

8. A fire extinguishing method for the pulse-coupled aerosol fire extinguishing device for dealing with explosion and high-temperature situations according to any one of claims 1 to 6, characterized in that: It includes the following steps: S1: When thermal runaway occurs in the fire extinguishing area, the temperature inside it will rise and a large amount of combustible gas will be generated. The glass bulb (7.5) expands and breaks by sensing the high temperature on the upper side through the hollow groove (7.2), thereby releasing the limiting effect on the impact disc (7.3). Under the action of the elastic force of the compression spring (7.4), the impact disc (7.3) moves downward and impacts the piezoelectric ceramic (5); S2: After being impacted, the piezoelectric ceramic (5) is activated to generate an induced current, which is conducted to the first ignition head (4) through the first starting wire (4.1) to make it work, thereby igniting the top of the fire extinguishing agent column (2), completing the starting process. The fire extinguishing agent column (2) burns to generate fire extinguishing substances, which are ejected from the inner nozzle (3) and the outer nozzle (13) in sequence. It fills the energy storage station and dilutes the combustible gas to achieve the effect of early explosion suppression; S3: When the fire extinguishing agent column (2) burns from the top to contact the communication hole (14) on the lower side, the communication hole (14) transmits the heat generated by combustion into the pulsed fire extinguishing agent (10). The pulsed fire extinguishing agent (10) burns instantaneously to generate an impact force, and the fire extinguishing substance is instantaneously ejected from the outer nozzle (13) to further disperse the combustible gas to achieve the effect of late explosion suppression.

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