Compressed air foam fire extinguishing device special for lithium battery fire of energy storage power station

Abstract

The utility model discloses a special compressed air foam fire extinguishing device for a lithium battery fire of an energy storage power station, which belongs to the technical field of compressed air foam fire extinguishing devices, and adopts the technical scheme that the special compressed air foam fire extinguishing device comprises a base, a spraying component is fixedly connected to the top of the base, and a supply component is fixedly connected to the front side of the base and comprises a fixed seat; the fixed seat is fixedly connected to the front side of the base, the top of the fixed seat is fixedly connected with a water tank, foam is manufactured by arranging the supply assembly, the lithium battery pack can be covered with the foam, fire spreading is inhibited through good fluidity and adhesiveness of the foam, and meanwhile, the water in the foam can be evaporated, so that fire extinguishing is achieved. And meanwhile, the foam layer isolates oxygen and interrupts the oxidation reaction process of combustion, and foam produced by the supply assembly is uniformly sprayed on the surface of the lithium battery pack by arranging the spraying assembly, so that the effect of increasing the foam coverage area is achieved, and the fire extinguishing efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to compressed air foam fire extinguishing device technical field, especially in kind of compressed air foam fire extinguishing device that energy storage power station lithium battery fire is special. BACKGROUND

[0002] Compressed air foam is mixed by water, foam concentrate and compressed air, and the foam can form a continuous foam layer on the surface of the burning material, which can isolate oxygen and prevent the burning from continuing.

[0003] In the lithium battery with fire extinguishing device, the automatic fire extinguishing device is used to extinguish the fire of the battery. Commonly, a trigger device is used to preheat, so that gas is generated. The gas expands and carries high-pressure fire extinguishing materials to be sprayed out, so as to play a role in extinguishing the fire. However, the above-mentioned fire extinguishing materials are used in a one-time fire extinguishing state, and the fire extinguishing device is damaged after being triggered, and subsequent recycling and use cannot be performed, so that the loss of materials is increased.

[0004] The existing patent (publication number: CN221130799U) provides a fire extinguishing device for energy storage power station battery. The fire extinguishing device for energy storage power station battery is installed at equal intervals in the inside of the outer box of the energy storage power station through the fire extinguishing device body and the spraying pipeline. The spraying pipeline is arranged in a curved shape, that is, when the spraying pipeline is installed in the inside of the upper cover, the space utilization rate can be increased. At the same time, the spraying pipeline drives heptafluoropropane to be downwardly conveyed, so that the uniformity of heptafluoropropane conveying can be increased.

[0005] In view of the above problems, the existing patent provides a solution. However, the core problem of the fire of the lithium battery of the energy storage power station is thermal runaway. Once thermal runaway occurs, the fire develops rapidly and is difficult to control. At the same time, when the lithium battery burns, flammable gas may be released. When the flammable gas accumulates to a certain concentration, there is a risk of explosion. Common dry powder fire extinguishers are difficult to effectively extinguish the fire in this case.

[0006] Therefore, a compressed air foam fire extinguishing device special for the fire of the lithium battery of the energy storage power station is provided. CONTENT OF THE UTILITY MODEL

[0007] The utility model aims to provide a compressed air foam fire extinguishing device special for the fire of the lithium battery of the energy storage power station, which can solve the problem that the core problem of the fire of the lithium battery of the existing energy storage power station is thermal runaway. Once thermal runaway occurs, the fire develops rapidly and is difficult to control. At the same time, when the lithium battery burns, flammable gas may be released. When the flammable gas accumulates to a certain concentration, there is a risk of explosion. Common dry powder fire extinguishers are difficult to effectively extinguish the fire in this case.

[0008] In order to achieve the above object, the utility model provides the following technical scheme: a compressed air foam fire extinguishing device special for energy storage power station lithium battery fire, including base, the top of base is fixedly connected with spray assembly, the front side of base is fixedly connected with supply assembly,

[0009] The supply assembly comprises a fixing seat, the fixing seat is fixedly connected to the front side of the base, a water tank is fixedly connected to the top of the fixing seat, a support frame is fixedly connected to the top of the water tank, a foam storage tank is fixedly connected to the top of the support frame, and a pump is fixedly connected to the top of the fixing seat.

[0010] Preferably, the spray assembly comprises a test frame, the test frame is fixedly connected to the top of the base, a fixing frame is fixedly connected to the inside of the test frame, and a spray pipe is clamped in the inside of the fixing frame.

[0011] Preferably, the surface of the spray pipe is fixedly connected with a plurality of spray heads arranged in pairs, and the spray heads are arranged at different inclination angles.

[0012] Preferably, a liquid delivery branch pipe is fixedly connected between the opposite sides of the two spray pipes, and a liquid delivery main pipe is fixedly connected to the bottom of the liquid delivery branch pipe.

[0013] Preferably, a liquid discharge pipe is fixedly connected to the bottom of the water tank and the foam storage tank, and a liquid delivery connector is fixedly connected to the front side of the water tank and the foam storage tank.

[0014] Preferably, a connector is fixedly connected to the side of the water tank and the foam storage tank close to the pump, a pump pipe is fixedly connected to the side of the connector close to the pump, and the side of the pump pipe close to the pump is fixedly connected with the output end of the pump.

[0015] Preferably, a support leg is fixedly connected to the top of the fixing seat, a mixing chamber is fixedly connected to the top of the support leg, and a foam connector pipe used in cooperation with the foam storage tank is fixedly connected to the top of the mixing chamber.

[0016] Preferably, a water inlet pipe used in cooperation with the water tank is fixedly connected to the side of the mixing chamber close to the water tank, and a foam pipe is fixedly connected to the bottom of the mixing chamber.

[0017] Preferably, the output end of the foam pipe is fixedly connected with a liquid delivery pipe, and an air compressor is fixedly connected to the top of the fixing seat.

[0018] Preferably, the output end of the air compressor is fixedly connected with a gas delivery pipe, and the side of the gas delivery pipe close to the mixing chamber is fixedly connected with the mixing chamber.

[0019] Compared with the prior art, the utility model has the advantages that:

[0020] 1、The application achieves manufacturing foam by setting the supply assembly, can cover the lithium battery pack by the foam, and can inhibit the spread of fire by the good fluidity and adhesion of the foam itself, and can reduce the battery temperature by the evaporation of water in the foam and absorb a large amount of heat, and the foam layer can isolate oxygen and interrupt the oxidation reaction process of combustion.

[0021] 2、The application achieves uniform spraying of the foam manufactured by the supply assembly on the surface of the lithium battery pack by setting the spraying assembly, thereby achieving the effect of improving the foam coverage area and improving the fire extinguishing efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the overall structural diagram of the compressed air foam fire extinguishing device special for the energy storage power station lithium battery fire of the utility model;

[0023] Figure 2 It is the structural schematic view of the supply assembly of the utility model;

[0024] Figure 3 It is the structural schematic view of the spraying assembly of the utility model;

[0025] Figure 4 It is the connection schematic view of the supply assembly of the utility model;

[0026] Figure 5 It is the structural schematic view of the mixing chamber of the utility model.

[0027] In the drawing, 1, base; 2, spraying assembly; 201, test frame; 202, fixed frame; 203, spraying pipe; 3, supply assembly; 301, fixed seat; 302, water tank; 303, support frame; 304, foam storage tank; 305, pump; 4, spray head; 5, liquid delivery branch pipe; 6, liquid delivery main pipe; 7, liquid discharge pipe; 8, liquid delivery connector; 9, connector; 10, pump pipe; 11, support leg; 12, mixing chamber; 13, foam connecting pipe; 14, water inlet pipe; 15, foam pipe; 16, liquid delivery pipe; 17, air compressor; 18, gas delivery pipe. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0029] Please refer to Figures 1-5 The utility model provides technical schemes:

[0030] The utility model provides a compressed air foam fire extinguishing device special for energy storage power station lithium battery fire, including base 1, the top of base 1 is fixedly connected with spraying assembly 2, the front side of base 1 is fixedly connected with supply assembly 3,

[0031] Supply assembly 3 includes fixed seat 301, fixed seat 301 is fixedly connected at the front side of base 1, the top of fixed seat 301 is fixedly connected with water tank 302, the top of water tank 302 is fixedly connected with support frame 303, the top of support frame 303 is fixedly connected with foam storage tank 304, the top of fixed seat 301 is fixedly connected with pump machine 305.

[0032] In the embodiment: spraying assembly 2 and supply assembly 3 are fixed through base 1, and the effect of manufacturing foam is achieved through supply assembly 3, then the effect of improving the coverage area of foam is achieved through spraying assembly 2, fixed seat 301 is fixed through base 1, and water tank 302 is fixed through fixed seat 301, then support frame 303 is fixed through water tank 302, and foam storage tank 304 is fixed through support frame 303, so that water and foam liquid are stored through foam storage tank 304 and water tank 302, then pump machine 305 is fixed through fixed seat 301, and the effect of facilitating the delivery of foam liquid and water is achieved through pump machine 305.

[0033] Specifically, as shown in the figure, Figure 3 Spraying assembly 2 includes test frame 201, test frame 201 is fixedly connected to the top of base 1, and fixed frame 202 is fixedly connected inside test frame 201, and spraying pipe 203 is clamped inside fixed frame 202.

[0034] Specifically, as shown in the figure, Figure 3 The surface of spraying pipe 203 is fixedly communicated with spray head 4, the number of spray head 4 is set to be several and is arranged in pairs, and spray head 4 is arranged at different inclination angles respectively.

[0035] Specifically, as shown in the figure, Figure 3 The opposite sides of the two spraying pipes 203 are fixedly communicated with liquid delivery branch pipe 5, and the bottom of liquid delivery branch pipe 5 is fixedly communicated with liquid delivery main pipe 6.

[0036] In the embodiment: test frame 201 is fixed through base 1, fixed frame 202 is fixed through test frame 201, and spraying pipe 203 is fixed through fixed frame 202, then the working position of spray head 4 is fixed through spraying pipe 203, the coverage range of foam is improved through the cooperation of spraying pipe 203 and spray head 4, then liquid delivery branch pipe 5 is fixed through spraying pipe 203, and liquid delivery main pipe 6 is fixed through liquid delivery branch pipe 5, so that the foam is conveniently delivered into spraying pipe 203.

[0037] Specifically, as shown in the figure, Figure 4As shown in the figure, the bottom of the water tank 302 and the foam storage tank 304 is fixedly connected with a drainage pipe 7, and the front side of the water tank 302 and the foam storage tank 304 is fixedly connected with a liquid inlet connector 8.

[0038] Specifically, as shown in the figure, Figure 4 As shown in the figure, the side of the water tank 302 and the foam storage tank 304 close to the pump 305 is fixedly connected with a connector 9, the side of the connector 9 close to the pump 305 is fixedly connected with a pump pipe 10, and the side of the pump pipe 10 close to the pump 305 is fixedly connected with the output end of the pump 305.

[0039] In this embodiment: the water tank 302 and the foam storage tank 304 are fixed by the drainage pipe 7, so that the water and foam liquid inside can be discharged, then the water tank 302 and the foam storage tank 304 are fixed by the liquid inlet connector 8, so that the water and foam liquid can be injected, then the water tank 302 and the foam storage tank 304 are fixed by the connector 9, and the pump pipe 10 is fixed by the connector 9, and the pump 305 is convenient for conveying the storage inside by the pump pipe 10.

[0040] Specifically, as shown in the figure, Figure 5 As shown in the figure, the top of the fixed seat 301 is fixedly connected with a support leg 11, the top of the support leg 11 is fixedly connected with a mixing chamber 12, and the top of the mixing chamber 12 is fixedly connected with a foam connecting pipe 13 used in cooperation with the foam storage tank 304.

[0041] Specifically, as shown in the figure, Figure 5 As shown in the figure, the side of the mixing chamber 12 close to the water tank 302 is fixedly connected with a water inlet pipe 14 used in cooperation with the water tank 302, and the bottom of the mixing chamber 12 is fixedly connected with a foam pipe 15.

[0042] In this embodiment: the support leg 11 is fixed by the fixed seat 301, then the mixing chamber 12 is fixed by the support leg 11, and the foam connecting pipe 13 is fixed by the mixing chamber 12 so that the foam liquid inside the foam storage tank 304 enters the mixing chamber 12, then the water inlet pipe 14 is fixed by the mixing chamber 12, and the water inside the water tank 302 enters the mixing chamber 12 by the water inlet pipe 14, then the foam pipe 15 is fixed by the mixing chamber 12 so that the foam produced is discharged from the mixing chamber 12.

[0043] Specifically, as shown in the figure, Figure 5 As shown in the figure, the output end of the foam pipe 15 is fixedly connected with a liquid outlet pipe 16, and the top of the fixed seat 301 is fixedly connected with an air compressor 17.

[0044] Specifically, as shown in the figure, Figure 5 As shown in the figure, the output end of the air compressor 17 is fixedly connected with a gas outlet pipe 18, and the side of the gas outlet pipe 18 close to the mixing chamber 12 is fixedly connected with the mixing chamber 12.

[0045] In the embodiment, the infusion tube 16 is fixed by the foam tube 15, so as to facilitate the delivery of the foam in the mixing chamber 12, the air compressor 17 is fixed by the fixing seat 301, the gas delivery tube 18 is fixed by the air compressor 17, and the air compressor 17 and the mixing chamber 12 are connected by the gas delivery tube 18, so as to facilitate the discharge of the foam in the mixing chamber 12.

[0046] Working principle: when the energy storage power station is tested, when the lithium battery catches fire, the water and the foam liquid are discharged from the water tank 302 and the foam storage tank 304 by the pump 305, at this time, the water and the foam liquid enter the foam connecting tube 13 and the water inlet pipe 14 by the liquid discharge pipe 7, so as to enter the mixing chamber 12, and the water and the foam liquid are uniformly mixed in the mixing chamber 12 to manufacture the foam, then the air compressor 17 manufactures high-pressure air and delivers the high-pressure air to the mixing chamber 12 to manufacture compressed air foam in the mixing chamber 12, then the compressed air foam enters the infusion main pipe 6 through the foam tube 15 and the infusion tube 16, then enters the infusion branch pipe 5 and the spray pipe 203 through the infusion main pipe 6, and the compressed air foam is uniformly sprayed on the surface of the lithium battery by the spray head 4 fixed by the spray pipe 203, so as to extinguish the fire.

[0047] The above is only a preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A compressed air foam extinguishing apparatus dedicated to the lithium battery fires of energy storage power stations, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected with a spraying assembly (2), and the front side of the base (1) is fixedly connected with a supply assembly (3); The supply assembly (3) comprises a fixed seat (301) fixedly connected to the front side of the base (1), the top of the fixed seat (301) is fixedly connected with a water tank (302), the top of the water tank (302) is fixedly connected with a support frame (303), the top of the support frame (303) is fixedly connected with a foam storage tank (304), and the top of the fixed seat (301) is fixedly connected with a pump (305).

2. A compressed air foam system for lithium battery fires in energy storage plants according to claim 1, characterized in that The spraying assembly (2) comprises a test rack (201) fixedly connected to the top of the base (1), and the inside of the test rack (201) is fixedly connected with a fixed frame (202), and the inside of the fixed frame (202) is clamped with a spraying pipe (203).

3. A compressed air foam system for lithium battery fires in energy storage plants according to claim 2, characterized in that: The surface of the spraying pipe (203) is fixedly connected with a spray head (4), the number of the spray head (4) is several and is arranged in pairs, and the spray head (4) is arranged at different inclination angles.

4. A compressed air foam system for lithium battery fires in energy storage plants according to claim 2, characterized in that: Two spraying pipes (203) are fixedly connected between opposite sides, and a liquid supply branch pipe (5) is fixedly connected between the bottom of the liquid supply branch pipe (5) and the liquid supply main pipe (6).

5. A compressed air foam fire extinguishing device for lithium battery fires in energy storage power stations according to claim 1, characterized in that: The bottom of the water tank (302) and the foam storage tank (304) is fixedly connected with a drainage pipe (7), and the front side of the water tank (302) and the foam storage tank (304) is fixedly connected with a liquid supply connector (8).

6. A compressed air foam system for lithium battery fires in energy storage plants according to claim 1, characterized in that: The side of the water tank (302) and the foam storage tank (304) close to the pump (305) is fixedly connected with a connector (9), the side of the connector (9) close to the pump (305) is fixedly connected with a pump pipe (10), and the side of the pump pipe (10) close to the pump (305) is fixedly connected with the output end of the pump (305).

7. A compressed air foam system for lithium battery fires in energy storage plants according to claim 1, characterized in that: The top of the fixed seat (301) is fixedly connected with a support leg (11), the top of the support leg (11) is fixedly connected with a mixing chamber (12), and the top of the mixing chamber (12) is fixedly connected with a foam connecting pipe (13) used in cooperation with the foam storage tank (304).

8. A compressed air foam system for lithium battery fires in energy storage plants according to claim 7, characterized in that: The side of the mixing chamber (12) close to the water tank (302) is fixedly connected with a water inlet pipe (14) used in cooperation with the water tank (302), and the bottom of the mixing chamber (12) is fixedly connected with a foam pipe (15).

9. A compressed air foam system for lithium battery fires in energy storage plants according to claim 8, characterized in that: The output end of the foam pipe (15) is fixedly connected with a liquid supply pipe (16), and the top of the fixed seat (301) is fixedly connected with an air compressor (17).

10. A compressed air foam system for lithium battery fires in energy storage plants according to claim 9, characterized in that The output end of the air compressor (17) is fixedly connected with a gas supply pipe (18), and the side of the gas supply pipe (18) close to the mixing chamber (12) is fixedly connected with the mixing chamber (12).

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