Condensed aerosol fire extinguishing device

Abstract

A condensed aerosol fire extinguishing device is provided with an upper shell, a lower shell, a medicine storage pipe, an aerosol generating agent, starting mix, an end sealing assembly and a thermal initiator. The upper shell is connected with the lower shell, and a placing space is formed in the upper shell and the lower shell; the medicine storage tube is arranged in the placement space; one end of the medicine storage pipe is connected with an end sealing plate, and a first through opening is formed in the other end of the medicine storage pipe. The position, close to the end sealing plate, in the medicine storage pipe is filled with the aerosol generating agent, the medicine storage pipe is filled with the starting mix, and the starting mix makes contact with the aerosol generating agent; the end sealing assembly is arranged at the first through opening and comprises an end cover, a first leading-out opening is formed in the end cover, the thermal initiator extends into the explosive storage pipe from the first leading-out opening, and the inner end of the thermal initiator makes contact with the starting mix. The utility model has the advantages of small volume, no pressure storage, no need of pipe network and maintenance, high efficiency and rapidness in fire extinguishing, no toxicity and harmlessness and the like, and effectively guarantees the safety of related equipment.

Description

Technical Field

[0001] The utility model relates to a hot aerosol fire extinguishing device, belonging to the technical field of energy storage fire safety. Background Art

[0002] Thermal aerosol fire extinguishing agent is a new type of fire extinguishing agent developed in recent years. It is a solid mixture composed of oxidant, reductant, combustion rate control agent and adhesive. The release of thermal aerosol fire extinguishing agent undergoes a combustion reaction, and the products contain both solids and gases. Most of them are fire extinguishing gases such as N2, CO2 and water vapor, and the solid particles are oxides of potassium and strontium.

[0003] As the greenhouse effect becomes increasingly serious, traditional fossil fuels can no longer meet current environmental protection requirements, and the green, sustainable and renewable photovoltaic industry is constantly rising. Photovoltaic power generation requires batteries as carriers for energy storage. Due to their instability, various types of batteries often have thermal runaway. In particular, most energy storage power stations are located in sparsely populated areas. When a fire occurs, it cannot be discovered in time, which can easily lead to the complete burning of the energy storage station, causing serious property losses. Utility Model Content

[0004] To this end, the utility model provides a hot aerosol fire extinguishing device to solve the problem that energy storage equipment cannot be discovered and handled in time due to thermal runaway, which easily leads to the complete burning of the energy storage power station and causes great property losses.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a thermal aerosol fire extinguishing device, comprising an upper shell, a lower shell, a medicine storage tube, an aerosol generating agent, an explosive, an end sealing assembly and a thermal initiator;

[0006] The upper shell is connected to the lower shell, and a placement space is formed inside the upper shell and the lower shell; the medicine storage tube is arranged inside the placement space;

[0007] One end of the medicine storage tube is connected to an end sealing plate, and the other end of the medicine storage tube is formed with a first opening; the aerosol generating agent is filled in the medicine storage tube near the end sealing plate, and the explosive powder is filled in the medicine storage tube, and the explosive powder contacts the aerosol generating agent;

[0008] The end sealing assembly is arranged at the first opening, and the end sealing assembly comprises an end cover, and the end cover is formed with a first outlet, and the thermal initiator extends from the first outlet into the interior of the medicine storage tube, and the inner end of the thermal initiator contacts the explosive;

[0009] A plurality of first nozzles are distributed on the edge of the first outlet.

[0010] As a preferred solution of the hot aerosol fire extinguishing device, a clamping plate is provided at the bottom of the lower shell, and a clamping groove is formed above the clamping plate; the lower end of the medicine storage tube is located in the clamping groove.

[0011] As a preferred solution of the hot aerosol fire extinguishing device, a second opening is formed at the end of the upper shell, and a second outlet is formed at the end of the lower shell corresponding to the position of the second opening; a plurality of second nozzles are distributed at the edge of the second outlet;

[0012] The thermal initiator is led out to the outside of the lower housing through the second opening and the second lead-out port.

[0013] As a preferred solution of the hot aerosol fire extinguishing device, a filter screen is further provided inside the medicine storage tube, and the filter screen is located inside the medicine storage tube near one end of the end sealing assembly;

[0014] The thermal initiator passes through the avoidance hole on the filter screen.

[0015] As a preferred solution of the hot aerosol fire extinguishing device, the end sealing assembly further comprises an aluminum foil sheet, and the aluminum foil sheet is located between the end cover and the filter screen;

[0016] The thermal initiator passes through the avoidance hole on the aluminum foil.

[0017] As a preferred solution of the hot aerosol fire extinguishing device, the interior of the medicine storage tube is also filled with a coolant, and the coolant is located between the filter screen and the explosive.

[0018] As a preferred solution for the hot aerosol fire extinguishing device, a temperature sensor is provided on the outer wall of the medicine storage tube, and the temperature sensor is used to output a feedback signal to the fire host to transmit the spraying action information of the hot aerosol fire extinguishing device.

[0019] As a preferred embodiment of the hot aerosol fire extinguishing device, it also includes an electric initiator, which extends from the first outlet into the interior of the medicine storage tube, and the inner end of the electric initiator contacts the fire transfer powder; the electric initiator is led out to the outside of the lower shell through the second opening and the second outlet.

[0020] The utility model has the following advantages: an upper shell, a lower shell, a medicine storage tube, an aerosol generator, a gunpowder, an end sealing assembly and a thermal initiator are provided; the upper shell is connected to the lower shell, and a placement space is formed inside the upper shell and the lower shell; the medicine storage tube is arranged inside the placement space; one end of the medicine storage tube is connected to an end sealing plate, and the other end of the medicine storage tube is formed with a first opening; the aerosol generator is filled in the medicine storage tube near the end sealing plate, and the gunpowder is filled in the medicine storage tube, and the gunpowder contacts the aerosol generator; the end sealing assembly is arranged at the first opening, and the end sealing assembly includes an end cover, and the end cover is formed with a first outlet, and the thermal initiator extends from the first outlet into the medicine storage tube, and the inner end of the thermal initiator contacts the gunpowder. The utility model can be used in communication rooms and electronic equipment, battery boxes, etc., and is installed in various confined spaces such as energy storage cabins to protect fires caused by thermal runaway of batteries, etc. It has the advantages of small size, pressure-free storage, no need for pipe networks and maintenance, efficient and rapid fire extinguishing, non-toxic and harmless, and effectively guarantees the safety of related equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0022] Figure 1 This is a schematic diagram of the overall structure of the hot aerosol fire extinguishing device provided in an embodiment of the utility model;

[0023] Figure 2 It is a schematic cross-sectional structure diagram of a hot aerosol fire extinguishing device provided in an embodiment of the utility model;

[0024] Figure 3 This is a schematic diagram of the first exploded structure of the hot aerosol fire extinguishing device provided in an embodiment of the utility model;

[0025] Figure 4 This is a schematic diagram of the second exploded structure of the hot aerosol fire extinguishing device provided in an embodiment of the utility model.

[0026] In the figure, 1. upper shell; 2. lower shell; 3. medicine storage tube; 4. aerosol generating agent; 5. explosive powder; 6. end sealing assembly; 7. thermal initiator; 8. placement space; 9. end sealing plate; 10. first opening; 11. first outlet; 12. first nozzle; 13. clamping plate; 14. clamping slot; 15. second opening; 16. second outlet; 17. second nozzle; 18. filter screen; 19. aluminum foil; 20. coolant; 21. temperature sensor; 22. electric initiator; 23. end cover. DETAILED DESCRIPTION

[0027] The following is a specific embodiment of the present invention. People familiar with the technology can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. Obviously, the described embodiment is a part of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The embodiment of the utility model provides a thermal aerosol fire extinguishing device, comprising an upper shell 1, a lower shell 2, a medicine storage tube 3, an aerosol generator 4, an explosive 5, an end sealing assembly 6 and a thermal initiator 7;

[0029] The upper shell 1 is connected to the lower shell 2, and a placement space 8 is formed inside the upper shell 1 and the lower shell 2; the medicine storage tube 3 is arranged inside the placement space 8;

[0030] One end of the drug storage tube 3 is connected to an end sealing plate 9, and the other end of the drug storage tube 3 is formed with a first opening 10; an aerosol generator 4 is filled in the drug storage tube 3 near the end sealing plate 9, and a pyrotechnic agent 5 is filled in the drug storage tube 3, and the pyrotechnic agent 5 contacts the aerosol generator 4;

[0031] Among them, the end sealing assembly 6 is arranged at the first opening 10, and the end sealing assembly 6 includes an end cover 23, and the end cover 23 forms a first outlet 11. The thermal initiator 7 extends from the first outlet 11 into the interior of the medicine storage tube 3, and the inner end of the thermal initiator 7 contacts the explosive 5; a plurality of first nozzles 12 are distributed on the edge of the first outlet 11.

[0032] In this embodiment, a clamping plate 13 is provided at the bottom of the lower housing 2 , and a clamping groove 14 is formed above the clamping plate 13 ; the lower end of the medicine storage tube 3 is located in the clamping groove 14 .

[0033] Specifically, after the medicine in the medicine storage tube 3 is loaded, it is placed in the arc-shaped groove 14 of the clamping plate 13 of the lower shell 2, and then placed in the upper shell 1. A similar arc-shaped groove can also be designed on the upper shell 1. The upper shell 1 and the lower shell 2 fix the medicine storage tube 3 together, and then align the rivet holes on the upper shell 1 and the lower shell 2, and rivet them together with open round flat head core-pulling screws. The upper shell 1 and the lower shell 2 are connected by rivet screws and are firmly installed. A mounting hole is left on the upper shell 1, which is convenient for fixing it in the installation position with fastening screws.

[0034] In this embodiment, a second opening 15 is formed at the end of the upper shell 1, and a second outlet 16 is formed at the end of the lower shell 2 at a position corresponding to the second opening 15; a plurality of second nozzles 17 are distributed on the edge of the second outlet 16; the thermal initiator 7 is led out to the outside of the lower shell 2 through the second opening 15 and the second outlet 16; a filter screen 18 is also provided inside the medicine storage tube 3, and the filter screen 18 is located at one end of the medicine storage tube 3 near the end sealing assembly 6; the thermal initiator 7 passes through the avoidance hole on the filter screen 18; the end sealing assembly 6 also includes an aluminum foil 19, and the aluminum foil 19 is located between the end cover 23 and the filter screen 18; the thermal initiator 7 passes through the avoidance hole on the aluminum foil 19; in addition, the interior of the medicine storage tube 3 is also filled with a coolant 20, and the coolant 20 is located between the filter screen 18 and the fire transmission powder 5; a temperature sensor 21 is provided on the outer wall of the medicine storage tube 3, and the temperature sensor 21 is used to output a feedback signal to the fire host and transmit the spraying action information of the hot aerosol fire extinguishing device.

[0035] Specifically, after the aerosol generator 4 is sealed separately, it is fixed together with the explosive 5 and the thermal initiator 7. The other end of the thermal initiator 7 is left out and connected for standby use. It is then loaded into the medicine storage tube 3, and a certain proportion of coolant 20 is added to the medicine storage tube 3 (the proportion and amount of the coolant 20 are packaged as required). A filter screen 18 is placed on the upper end for filtering, and an aluminum foil sheet 19 of a certain thickness is pasted on the inside of the end cover 23. Then, the end cover 23 is screwed onto the medicine storage tube 3. The medicine storage tube 3 and the end cover 23 are threadedly connected, and the thermal initiator 7 extends from the first outlet 11 in the center of the end cover 23 of the medicine storage tube 3.

[0036] Among them, the aerosol generator 4 is used to produce fire extinguishing agent to extinguish fire; the explosive 5 is used to ignite the aerosol generator 4 and spray the fire extinguishing agent; the coolant 20 is used to reduce the surface temperature and thermal spacing temperature of the shell after the device is sprayed, to prevent people from being seriously burned by accidental contact, and can also play a certain role as a desiccant. The end cover 23 can firmly fix the various parts contained in the medicine storage tube 3, and has 7 first nozzles 12 with a diameter of 10mm, so that the hot aerosol can be normally sprayed from the first nozzle 12 to prevent pressure holding. The impurities generated when the aerosol generator 4 is sprayed are filtered through the filter 18; and the aluminum foil 19 can play a certain role in isolating water vapor; the lower shell 2 and the upper shell 1 fix the medicine storage tube 3 together, and the lower shell 2 has 6 second nozzles 17 with a diameter of 12mm and 1 with a diameter of 16mm, so that the hot aerosol can be smoothly sprayed from the second nozzle 17.

[0037] Among them, a temperature sensor 21 with a temperature feedback element is arranged on the outer wall of the medicine storage tube 3. The temperature feedback element of the temperature sensor 21 is a normally open type with an operating temperature of 130°C. After the hot aerosol fire extinguishing device is sprayed, the outer wall temperature of the medicine storage tube 3 reaches the operating temperature, and the temperature sensor 21 will send a signal to the fire host that the fire extinguishing device has been activated.

[0038] In this embodiment, an electric initiator 22 is also included. The electric initiator 22 extends from the first outlet 11 into the interior of the medicine storage tube 3, and the inner end of the electric initiator 22 contacts the explosive powder 5; the electric initiator 22 is led out to the outside of the lower shell body 2 through the second opening 15 and the second outlet 16.

[0039] Specifically, both the thermal initiator 7 and the electric initiator 22 are used for starting. When a dangerous situation occurs, the thermal initiator 7 can detect the ambient temperature and start automatically. Alternatively, an external detector can be connected to input an electrical signal to control the start of the electric initiator 22, ensuring that the device starts quickly when a dangerous situation occurs to avoid causing greater property losses.

[0040] Among them, the temperature sensing preset value of the thermal initiator 7 is 185℃±15℃; the starting current value of the electric initiator 22 is 600mA. The thermal initiator 7 can detect the ambient temperature or contact with open flames, and start the fire extinguishing device to automatically extinguish the fire. The thermal initiator 7 senses that the ambient temperature reaches 185℃±15℃ or contacts open flames, or the electric initiator 22 receives the starting signal of the fire host, ignites the fire-transmitting powder 5, and the fire-transmitting powder 5 ignites the aerosol generating agent 4. The aerosol generating agent 4 sprays the fire extinguishing agent. After the fire extinguishing agent is cooled by the coolant 20, it passes through the filter 18 and breaks through the aluminum foil 19. It is quickly sprayed from the first nozzle 12 and the second nozzle 17 within the specified time, and quickly spreads to all parts of the protection space to quickly extinguish the fire. When spraying, the surface temperature of the medicine storage tube 3 rises, and the temperature reaches the action temperature of the temperature sensor 21. The temperature sensor 21 outputs a feedback signal to the fire host, transmitting the information that the device has sprayed.

[0041] To sum up, after the medicine in the medicine storage tube 3 of the utility model is loaded, it is placed in the arc-shaped groove 14 of the clamping plate 13 of the lower shell 2, and then placed in the upper shell 1. A similar arc-shaped groove can also be designed on the upper shell 1. The upper shell 1 and the lower shell 2 fix the medicine storage tube 3 together, and then align the rivet holes on the upper shell 1 and the lower shell 2, and use open round flat head core-pulling screws to rivet and connect. The upper shell 1 and the lower shell 2 are connected by rivet screws and are firmly installed. A mounting hole is left on the upper shell 1, which is convenient for fixing it in the installation position with fastening screws. After the aerosol generator 4 is sealed separately, it is fixed together with the explosive 5 and the thermal initiator 7. The other end of the thermal initiator 7 is left out and connected for standby use. Then it is loaded into the medicine storage tube 3. A certain proportion of coolant 20 is added to the medicine storage tube 3 (the proportion and amount of coolant 20 are packaged as required). A filter 18 is placed on the upper end for filtering. A certain thickness of aluminum foil 19 is pasted inside the end cover 23. Then the end cover 23 is screwed onto the medicine storage tube 3. The medicine storage tube 3 and the end cover 23 are connected by threads. The thermal initiator 7 extends from the first outlet 11 in the center of the end cover 23 of the medicine storage tube 3. The aerosol generator 4 is used to generate fire extinguishing agent to extinguish fire; the explosive 5 is used to ignite the aerosol generator 4 and spray the fire extinguishing agent; the coolant 20 is used to reduce the surface temperature and thermal spacing temperature of the shell after the device is sprayed to prevent people from being seriously burned by accidental contact, and it can also play a certain role as a desiccant. The end cap 23 can firmly fix the various parts contained in the medicine storage tube 3, and has 7 first nozzles 12 with a diameter of 10mm, so that the hot aerosol can be normally sprayed out from the first nozzles 12 to prevent pressure from being blocked. The impurities generated when the aerosol generating agent 4 is sprayed are filtered through the filter 18; and the aluminum foil 19 can play a certain role in isolating water vapor; the lower shell 2 and the upper shell 1 fix the medicine storage tube 3 together, and the lower shell 2 has 6 second nozzles 17 with a diameter of 12mm and 1 second nozzle 17 with a diameter of 16mm, so that the hot aerosol can be smoothly sprayed from the second nozzle 17. A temperature sensor 21 with a temperature feedback element is set on the outer wall of the medicine storage tube 3. The temperature feedback element of the temperature sensor 21 is a normally open type with an operating temperature of 130℃. After the hot aerosol fire extinguishing device is sprayed, the outer wall temperature of the medicine storage tube 3 reaches the operating temperature, and the temperature sensor 21 will send a signal to the fire host that the fire extinguishing device has been activated. The utility model can be used in communication rooms and electronic equipment, battery boxes, etc., and can be installed in various confined spaces such as energy storage cabins to protect batteries from fires caused by thermal runaway. It has the advantages of small size, pressure-free storage, no need for pipe networks and maintenance, efficient and rapid fire extinguishing, and is non-toxic and harmless, effectively ensuring the safety of related equipment.

[0042] Although the utility model has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the utility model. Therefore, these modifications or improvements made without departing from the spirit of the utility model are within the scope of protection claimed by the utility model.

Claims

1. A hot aerosol fire extinguishing device, characterized in that: It comprises an upper shell (1), a lower shell (2), a drug storage tube (3), an aerosol generator (4), a pyrotechnic powder (5), an end sealing component (6) and a thermal initiator (7); The upper shell (1) is connected to the lower shell (2), and a placement space (8) is formed inside the upper shell (1) and the lower shell (2); the medicine storage tube (3) is arranged inside the placement space (8); One end of the medicine storage tube (3) is connected to an end sealing plate (9), and the other end of the medicine storage tube (3) is formed with a first opening (10); the aerosol generating agent (4) is filled in the interior of the medicine storage tube (3) near the end sealing plate (9), and the ignition transmitting agent (5) is filled in the interior of the medicine storage tube (3), and the ignition transmitting agent (5) contacts the aerosol generating agent (4); The end sealing assembly (6) is arranged at the first opening (10), the end sealing assembly (6) comprises an end cover (23), the end cover (23) is formed with a first outlet (11), the thermal initiator (7) extends from the first outlet (11) into the interior of the medicine storage tube (3), and the inner end of the thermal initiator (7) contacts the ignition powder (5); A plurality of first nozzles (12) are distributed on the edge of the first outlet (11).

2. A hot aerosol fire extinguishing device according to claim 1, characterized in that: A clamping plate (13) is provided at the bottom of the lower shell (2), and a clamping groove (14) is formed above the clamping plate (13); the lower end of the medicine storage tube (3) is located in the clamping groove (14).

3. A hot aerosol fire extinguishing device according to claim 1, characterized in that: A second opening (15) is formed at the end of the upper shell (1), and a second outlet (16) is formed at the end of the lower shell (2) at a position corresponding to the second opening (15); a plurality of second nozzles (17) are distributed around the edge of the second outlet (16); The heat initiator (7) is led out to the outside of the lower shell (2) through the second opening (15) and the second outlet (16).

4. A hot aerosol fire extinguishing device according to claim 1, characterized in that: A filter screen (18) is also provided inside the medicine storage tube (3), and the filter screen (18) is located inside the medicine storage tube (3) near one end of the end sealing component (6); The thermal initiator (7) passes through the avoidance hole on the filter screen (18).

5. A hot aerosol fire extinguishing device according to claim 4, characterized in that: The end sealing assembly (6) further comprises an aluminum foil sheet (19), wherein the aluminum foil sheet (19) is located between the end cover (23) and the filter screen (18); The thermal initiator (7) passes through the avoidance hole on the aluminum foil (19).

6. A hot aerosol fire extinguishing device according to claim 4, characterized in that: The interior of the medicine storage tube (3) is also filled with a coolant (20), and the coolant (20) is located between the filter screen (18) and the explosive (5).

7. A hot aerosol fire extinguishing device according to claim 5, characterized in that: The outer wall of the medicine storage tube (3) is provided with a temperature sensor (21), and the temperature sensor (21) is used to output a feedback signal to the fire host, transmitting the spraying action information of the hot aerosol fire extinguishing device.

8. A hot aerosol fire extinguishing device according to claim 3, characterized in that: It also includes an electric initiator (22), which extends from the first outlet (11) into the interior of the medicine storage tube (3), and the inner end of the electric initiator (22) contacts the ignition powder (5); the electric initiator (22) is led out to the outside of the lower shell (2) through the second opening (15) and the second outlet (16).

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