Multifunctional fire extinguishing device special for lithium ion battery

Abstract

The utility model discloses a multifunctional fire extinguishing device special for a lithium ion battery, which relates to the technical field of fire extinguishing devices and comprises a movable frame, a first pressure storage liquid tank, a second pressure storage liquid tank, a first pressure storage gas cylinder, a second pressure storage gas cylinder, a spray gun and a positive pressure type air respirator mask. When the thermal runaway of the lithium ion battery occurs, the multiphase fire extinguishing agent is used for intervention at the first time, and the thermal runaway is controlled in the bud state or the fire behavior is completely controlled. After thermal runaway of the lithium ion battery is controlled, water mist is used for extinguishing surrounding fire and inhibiting heat release side reaction in the lithium ion battery, or two persons simultaneously use a multi-phase fire extinguishing agent and the water mist to extinguish fire. Effective personal protection equipment is provided for toxic gas generated by thermal runaway of the lithium ion battery. The whole device is compact in structure and easy to move, can be placed in a specific place and can also be moved to a required place, and flexible and safe operation is facilitated. The device is simple in design, energy-saving, efficient, low in use cost and easy to popularize on a large scale.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire extinguishing device technical field especially is related to a multifunctional lithium ion battery special fire extinguishing device. BACKGROUND

[0002] Now more and more equipment applies lithium ion battery as power, and once lithium ion battery is in thermal runaway state, due to the particularity of its internal material, it presents the characteristics of chemical fire - no oxygen combustion support. After general ignition, it enters the state of violent combustion after tens of seconds, and often accompanied by deflagration and high temperature combustion phenomenon, at this time, the conventional asphyxiation fire extinguishing means is often inefficient, or after temporarily controlling the fire, it burns again. In addition, lithium ion battery combustion can generate toxic smoke, which also poses a great threat to the safety of fire extinguishing operators.

[0003] Although the multi-phase fire extinguishing agent has high efficiency in putting out lithium ion battery fire, it forms a solid film on the surface of the battery after extinguishing, making it difficult to dissipate the high temperature inside the lithium ion battery after burning, thereby easily leading to reignition. At the same time, lithium ion battery combustion often ignites the surrounding cover, and the multi-phase fire extinguishing agent is not good at extinguishing these high molecular cover, and the multi-phase fire extinguishing agent is expensive, and inefficient in dealing with the surrounding fire, which reduces the fire extinguishing efficiency and greatly increases the fire extinguishing cost. Lithium ion battery combustion releases toxic gas.

[0004] Therefore, according to the characteristics of lithium ion battery thermal runaway state, first, the lithium ion battery fire should be covered and put out in time and effectively in the initial stage of thermal runaway state, to control and interrupt the internal chemical chain reaction, so that it does not develop into a high temperature and violent burning state. The second is to control the peripheral fire after the fire is basically controlled, to avoid causing secondary thermal runaway of lithium ion battery, and to further cool and soak the lithium ion battery to control the internal exothermic side reaction. The third, all fire extinguishing operations should be complete personal protection to prevent poisoning. Of course, in the case of site and personnel,

[0005] Therefore, a multifunctional lithium ion battery special fire extinguishing device is needed, which can effectively deal with the surrounding fire while extinguishing the lithium ion battery, and further cool and prevent reignition. And it also takes into account reducing the fire extinguishing cost and protecting the personal safety of fire extinguishing personnel. SUMMARY

[0006] To solve the above technical problems, the utility model provides a multifunctional lithium ion battery special fire extinguishing device, which can reduce the fire extinguishing cost and protect the personal safety of fire extinguishing personnel.

[0007] To achieve the above purpose, the utility model provides the following scheme:

[0008] The utility model provides a multifunctional lithium ion battery special fire extinguishing device, including mobile frame, first pressure storage liquid tank, second pressure storage liquid tank, first pressure storage gas cylinder, second pressure storage gas cylinder, spray gun and positive pressure type air breather face guard, first pressure storage liquid tank first pressure storage liquid tank, second pressure storage liquid tank, first pressure storage gas cylinder and second pressure storage gas cylinder all set up on mobile frame, first pressure storage gas cylinder with second pressure storage liquid tank between being provided with first pressure reducer and function conversion switch, second pressure storage gas cylinder with positive pressure type air breather face guard between being provided with second pressure reducer and positive pressure type air breather gas supply valve, first pressure storage liquid tank or second pressure storage liquid tank with spray gun between being provided with function conversion switch.

[0009] Optionally, the first pressure storage liquid tank or the second pressure storage liquid tank is connected with the spray gun through a high-pressure liquid hose.

[0010] Optionally, the second pressure storage gas cylinder is connected with the positive pressure type air breather face guard through a medium-pressure gas hose; and the positive pressure type air breather gas supply valve is arranged on the medium-pressure gas hose.

[0011] Optionally, a hose storage tank is further arranged on the mobile frame, and the hose storage tank is used for containing the high-pressure liquid hose and the medium-pressure gas hose.

[0012] Optionally, the first pressure storage liquid tank is used for storing water-soluble foam liquid; and the second pressure storage liquid tank is used for storing a multi-phase fire extinguishing agent; and the pressure resistance of the first pressure storage liquid tank and the second pressure storage liquid tank is greater than or equal to 2.0 MPa.

[0013] Optionally, the volume of the first pressure storage gas cylinder and the second pressure storage gas cylinder is greater than or equal to 6.8 L, and the pressure resistance is greater than or equal to 30 MPa.

[0014] Optionally, the output pressure of the first pressure reducer is 2.0-4.5 MPa, and the output pressure of the second pressure reducer is 0.5-0.8 MPa.

[0015] Optionally, the spray gun is a multifunctional fine water mist spray gun, and the multifunctional fine water mist spray gun has two functions of direct current and fine water mist spraying.

[0016] Optionally, the first pressure storage gas cylinder is a power source of the first pressure storage liquid tank and the second pressure storage liquid tank; and the second pressure storage gas cylinder is used for storing clean compressed air.

[0017] Optionally, the flow rate of the first pressure reducer is greater than or equal to 9 L / s; and the flow rate of the second pressure reducer is greater than or equal to 0.7 L / s.

[0018] Compared with the prior art, the utility model has the following technical effects:

[0019] The utility model discloses a multifunctional lithium ion battery special fire extinguishing device, when lithium ion battery thermal runaway occurs, the device uses multiphase fire extinguishing agent to intervene first time, and the thermal runaway is controlled in the budding state or the fire is completely controlled. After the lithium ion battery thermal runaway is controlled, the fine water mist is used to extinguish and inhibit the lithium ion battery internal heat release side reaction. Particularly, under the condition that the site and personnel are allowed, the multiphase fire extinguishing agent and the fine water mist are sprayed simultaneously, and better fire extinguishing effect can be obtained. Effective personal protective equipment is provided for the toxic gas generated by lithium ion battery thermal runaway. The whole device is compact in structure and easy to move, can be placed in a specific place, can also be moved to the site needed, and the hose has the length of 10 meters, so that the operation is flexible and safe. The device is simple in design, energy-saving and efficient, low in use cost and easy to popularize on a large scale. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment, and obviously, the drawing in the following description is only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without paying creative labor.

[0021] Fig. 1 It is the structure schematic diagram of the multifunctional lithium ion battery special fire extinguishing device of the utility model,

[0022] Fig. 2 It is the function conversion switch schematic diagram of the multifunctional lithium ion battery special fire extinguishing device of the utility model,

[0023] Fig. 3 It is the schematic diagram of the multifunctional fine water mist spray gun structure of the multifunctional lithium ion battery special fire extinguishing device of the utility model.

[0024] Fig. 4 It is the liquid fire extinguishing system connection schematic diagram of the multifunctional lithium ion battery special fire extinguishing device of the utility model,

[0025] Fig. 5 It is the air breathing apparatus system connection schematic diagram of the multifunctional lithium ion battery special fire extinguishing device of the utility model,

[0026] Fig. 6 It is the schematic diagram of the fast change puncture gun head with protective shield of the multifunctional lithium ion battery special fire extinguishing device of the utility model.

[0027] Mark explanation:

[0028] 1. First pressurized liquid tank; 2. Second pressurized liquid tank; 3. First pressurized gas cylinder; 4. Second pressurized gas cylinder; 5. First pressure reducer; 6. Second pressure reducer; 7. Multi-functional fine water mist spray gun; 8. Function conversion switch; 9. Positive pressure air respirator mask; 10. Positive pressure air respirator air supply valve; 11. High-pressure liquid hose; 12. Medium-pressure gas hose; 13. Hose storage tank; 14. Mobile frame; 15. Quick-change nozzle with protective shield. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] like Figs. 1 to 6 As shown, this embodiment provides a multifunctional fire extinguishing device specifically for lithium-ion batteries, including a mobile frame 14, a first pressurized liquid tank 1, a second pressurized liquid tank 2, a first pressurized gas cylinder 3, a second pressurized gas cylinder 4, a spray gun, and a positive pressure air respirator mask 9; the first pressurized liquid tank 1, the second pressurized liquid tank 2, the first pressurized gas cylinder 3, and the second pressurized gas cylinder 4 are all mounted on the mobile frame 14; a first pressure reducer 5 and a function conversion switch 8 are provided between the first pressurized gas cylinder 3 and the second pressurized liquid tank 2; a second pressure reducer 6 and a positive pressure air respirator supply valve 10 are provided between the second pressurized gas cylinder 4 and the positive pressure air respirator mask 9; a function conversion switch 8 is provided between the first pressurized liquid tank 1 or the second pressurized liquid tank 2 and the spray gun.

[0031] In this specific embodiment, the mobile frame 14 is also provided with a hose storage tank 13, which is used to hold the high-pressure liquid hose 11 and the medium-pressure gas hose 12.

[0032] The first pressure storage tank 1 or the second pressure storage tank 2 is connected to the spray gun via a high-pressure liquid hose 11.

[0033] The second pressurized gas cylinder 4 is connected to the positive pressure air respirator mask 9 via a medium-pressure gas hose 12; the positive pressure air respirator supply valve 10 is located on the medium-pressure gas hose 12.

[0034] The first pressurized liquid tank 1 is used to store water-soluble foam liquid, such as AFF-3 or -6 water-soluble foam, to increase fire extinguishing efficiency.

[0035] The second pressure storage tank 2 is used for storing multiphase fire extinguishing agent, such as lithium ion battery special fire extinguishing agent approved by national fire detection certification. The pressure resistance of the first pressure storage tank 1 and the second pressure storage tank 2 is: ≥2.0MPa.

[0036] The volume of the first pressure gas cylinder 3 and the second pressure gas cylinder 4 is: ≥6.8L, and the pressure resistance is: ≥30MPa.

[0037] The output pressure of the first pressure reducer 5 is: 2.0-4.5MPa, and the output pressure of the second pressure reducer 6 is: 0.5-0.8MPa.

[0038] In the case that the volume of the first pressure storage tank 1 is ≥40L, the volume of the second pressure storage tank 2 is ≥6L, the volume of the first pressure gas cylinder 3 and the second pressure gas cylinder 4 is ≥6.8L, and the length of the high-pressure liquid hose 11 and the medium-pressure gas hose 12 is ≥10 meters, the overall equipment mass is ≤100kg, and it is convenient to move and flexible to operate.

[0039] The spray gun is a multifunctional fine water mist spray gun 7, and the spray gun can quickly replace the puncture gun head 15 with a protective shield. The multifunctional fine water mist spray gun 7 has the functions of direct current and fine water mist spraying. The multifunctional fine water mist spray gun 7 can realize three spraying modes of fine water mist, direct current and puncture through the conversion switch and quick-change gun head of the spray gun itself.

[0040] The first pressure gas cylinder 3 is the output power source of the first pressure storage tank 1 and the second pressure storage tank 2; the second pressure gas cylinder 4 is used for storing clean compressed air, and the positive pressure air respirator can be used by opening the switch of the second pressure gas cylinder 4.

[0041] The flow rate of the first pressure reducer 5 is ≥9L / s, and the output pressure is: 2.0-4.5MPa; the flow rate of the second pressure reducer 6 is ≥0.7L / s, and the output pressure is: 0.5-0.8MPa.

[0042] The bottom of the mobile frame 14 is provided with universal casters and an air mask storage box.

[0043] When the fire occurs, the high-pressure gas hose and the medium-pressure liquid hose in the hose storage tank 13 are released by pushing the mobile frame 14 to the appropriate position, the personal protection tools (including the fire helmet, the fire suit, the fire gloves, the fire boots) are worn, the positive pressure air respirator face mask 9 is worn, the positive pressure air respirator air supply valve 10 is inserted into the positive pressure air respirator face mask 9, the switch of the second pressure storage cylinder 4 is opened, and the positive pressure air respirator is started to be used. If the lithium ion battery has been burned or is about to be thermal runaway (smoking) at this time, the switch of the first pressure storage cylinder 3 is opened, the function conversion switch 8 is switched to the multi-phase fire extinguishing agent selection, the multifunctional water mist spray gun 7 is held to the appropriate position of the fire scene, the switch of the multifunctional water mist spray gun 7 is opened, the direct current mode and the quick-change piercing gun head 15 with the protective shield are used to extinguish the lithium ion battery fire; after the fire is preliminarily controlled, the function conversion switch 8 is switched to the water mist selection, the water mist is sprayed, the lithium ion battery is further infiltrated and cooled, and the surrounding A and B fires are treated.

[0044] The multifunctional lithium ion battery special fire extinguishing device in the utility model can effectively and low-cost dispose the lithium ion battery fire, and can also effectively put out the A, B and D fires through the water mist, and reliable personal protection is provided for the toxic smoke of the lithium ion battery fire. The overall device is compact in structure, and the weight is not more than 100 kg, the device is convenient to move, and can be widely configured in the fire brigade, the community, the charging station, the gas station and the like.

[0045] The test results show that the control efficiency of the multi-phase fire extinguishing agent on the thermal runaway of the lithium ion battery is about 40% higher than that of the water mist, but the multi-phase fire extinguishing agent is expensive, poor in heat conduction, easy to relight and low in efficiency on the A and B fires. The water mist is low in use cost, energy-saving and environment-friendly, excellent in cooling effect and high in efficiency on the A and B fires. The positive pressure air respirator is indispensable in the whole fire extinguishing operation process. Therefore, the combination of the multi-phase fire extinguishing agent, the water mist fire extinguishing mode and the positive pressure air respirator is very efficient and economical at present.

[0046] The multifunctional lithium ion battery special fire extinguishing device in the utility model can effectively and low-cost dispose the lithium ion battery fire, and can also effectively put out the A, B and D fires through the water mist, and reliable personal protection is provided for the toxic smoke of the lithium ion battery fire. The overall device is compact in structure, and the weight is not more than 100 kg, the device is convenient to move, and can be widely configured in the fire brigade, the community, the charging station, the gas station and the like.

[0047] The multifunctional lithium ion battery special fire extinguishing device in the utility model, the high-pressure liquid hose and the water mist spray gun can be configured with two sets, and two people can operate conveniently. In this case, the switch is arranged between the first pressure storage tank or the second pressure storage tank and the spray gun, and the function conversion switch is cancelled.

[0048] It should be noted that, for those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application, any reference signs in the claims should not be regarded as limiting the claims involved.

[0049] The principles and implementation modes of the present application are described in the specification by applying specific examples, the above embodiment description is only used to help understand the method of the present application and its core idea; at the same time, for those skilled in the art, according to the idea of the present application, there will be changes in specific implementation modes and application scope. In conclusion, the content of the specification should not be understood as a limitation of the present application.

Claims

1. A multifunctional lithium-ion battery dedicated fire extinguishing device, characterized in that, The mobile vehicle frame, the first pressure storage liquid tank, the second pressure storage liquid tank, the first pressure storage gas cylinder, the second pressure storage gas cylinder, the spray gun and the positive pressure air respirator mask; the first pressure storage liquid tank, the second pressure storage liquid tank, the first pressure storage gas cylinder and the second pressure storage gas cylinder are arranged on the mobile vehicle frame; the first pressure storage gas cylinder and the second pressure storage liquid tank are provided with a first pressure reducer and a function conversion switch; the second pressure storage gas cylinder and the positive pressure air respirator mask are provided with a second pressure reducer and a positive pressure air respirator gas supply valve; the first pressure storage liquid tank or the second pressure storage liquid tank and the spray gun are provided with the function conversion switch.

2. The multifunctional fire extinguishing device for lithium-ion battery of claim 1, wherein, The first pressure storage liquid tank or the second pressure storage liquid tank and the spray gun are connected through a high-pressure liquid hose.

3. The multifunctional fire extinguishing device for lithium-ion battery of claim 1, wherein, The second pressure storage gas cylinder and the positive pressure air respirator mask are connected through a medium-pressure gas hose; the positive pressure air respirator gas supply valve is arranged on the medium-pressure gas hose.

4. The multifunctional fire extinguishing device for lithium ion battery according to claim 1, characterized in that, The mobile vehicle frame is further provided with a hose storage tank, which is used for containing the high-pressure liquid hose and the medium-pressure gas hose.

5. The multifunctional fire extinguishing device for lithium-ion battery of claim 1, wherein, The first pressure storage liquid tank is used for storing water-soluble foam liquid; the second pressure storage liquid tank is used for storing multi-phase fire extinguishing agent, and the pressure resistance of the first pressure storage liquid tank and the second pressure storage liquid tank is ≥2.0MPa.

6. The multifunctional fire extinguishing device for lithium-ion battery of claim 1, wherein, The volume of the first pressure storage gas cylinder and the second pressure storage gas cylinder is ≥6.8L, and the pressure resistance is ≥30MPa.

7. The multifunctional fire extinguishing device for lithium-ion battery of claim 1, wherein, The output pressure of the first pressure reducer is 2.0-4.5MPa, and the output pressure of the second pressure reducer is 0.5-0.8MPa.

8. The multifunctional fire extinguishing device for lithium-ion batteries according to claim 1, characterized in that, The spray gun is a multifunctional water mist spray gun, which has the functions of direct current and water mist spraying.

9. The multifunctional fire extinguishing device for lithium-ion battery of claim 1, wherein, The first pressure storage gas cylinder is the output power source of the first pressure storage liquid tank and the second pressure storage liquid tank; the second pressure storage gas cylinder is used for storing clean compressed air.

10. The multifunctional fire extinguishing device for lithium ion battery according to claim 1, characterized in that, The flow rate of the first pressure reducer is ≥9L / s; the flow rate of the second pressure reducer is ≥0.7L / s.

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