Portable under-vehicle puncture water mist fire extinguishing equipment and fire extinguishing method

Abstract

The invention discloses portable under-vehicle penetrating water mist fire extinguishing equipment and a fire extinguishing method, and belongs to the technical field of electric vehicle thermal runaway fire extinguishing equipment. One end of the water supply pipe is connected with the bracket body; the water mist spraying assembly is installed on a support pipeline of the water supply pipe. The fixing assembly is connected to the bottom of the support body and used for fixing equipment between a vehicle chassis and the ground after the equipment is in place. The power assembly is arranged on the support body and connected with the water supply pipe and the water mist spraying assembly. The connecting assembly is installed at the other end of the water supply pipe and used for connecting the water supply pipe with the water hose and the fire hydrant valve. The moving assembly is installed at the bottom of the support body. The device can directly penetrate through a lower metal plate of an electric vehicle battery, water mist is accurately and rapidly sprayed into a battery pack, rapid cooling, fire control and fire extinguishment are achieved, meanwhile, external cooling is considered, and the extinguishing efficiency of lithium battery thermal runaway fire disasters is remarkably improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of electric vehicle thermal runaway fire extinguishing equipment, and particularly relates to a portable vehicle bottom puncture water mist fire extinguishing equipment and a fire extinguishing method. BACKGROUND

[0002] With the popularization of new energy electric vehicles, the incidence of fire accidents caused by lithium battery thermal runaway has increased year by year. When the lithium battery vehicle has thermal runaway, cooling and fire extinguishing measures need to be taken in time to effectively control the fire. In the prior art, the fire extinguishing equipment for such fire is mainly a pushcart flat plate type water mist fire extinguishing device. This type of device can only cool the outside of the vehicle chassis. The lithium battery is installed around the vehicle and is pressed and wrapped by the metal plate at the bottom of the vehicle. The water mist cannot penetrate the metal plate to contact the lithium battery area, and cannot achieve direct cooling and fire extinguishing of the lithium battery, so it is difficult to quickly control the runaway fire of the lithium battery. In the scene where lithium battery vehicles are concentrated, such as parking lots and vehicle storage and transportation, it is easy to cause the spread of fire, causing serious property loss and safety hazards. SUMMARY

[0003] To solve the above technical problems, the application designs a portable vehicle bottom puncture water mist fire extinguishing equipment, which can not only cool the outside of the vehicle chassis, but also puncture the metal plate at the bottom of the vehicle to directly spray water to the lithium battery part, achieving rapid cooling and fire extinguishing of the lithium battery, and effectively solving the technical defects of the existing equipment.

[0004] In order to achieve the above purpose, the application provides a portable vehicle bottom puncture water mist fire extinguishing equipment and a fire extinguishing method, which adopts the following technical scheme: The portable vehicle bottom puncture water mist fire extinguishing equipment comprises: a support body; a water supply pipe, one end of the water supply pipe being connected with the support body; a water mist spraying assembly, the water mist spraying assembly being installed on the support pipe of the water supply pipe; a fixing assembly, the fixing assembly being connected at the bottom of the support body, and being used for fixing the equipment between the vehicle chassis and the ground after the equipment is in place; a power assembly, the power assembly being arranged on the support body and being connected with the water supply pipe and the water mist spraying assembly respectively, and being used for realizing the water spraying operation of the water mist spraying assembly and the puncture operation of the opening assembly driven by the power assembly by means of the water flow and pressure of the fire hydrant water supply; a connecting assembly, the connecting assembly being installed at the other end of the water supply pipe, and being used for connecting the water supply pipe with the water hose and the fire hydrant valve; a moving assembly, the moving assembly being installed at the bottom of the support body, so that the support body is convenient to move during operation.

[0005] Further, the power assembly comprises a water turbine and a puncher; the water turbine is communicated with the internal water channel of the water supply pipe and driven to rotate by water flow; the puncher is installed at one end of the water supply pipe and connected with the output shaft of the water turbine, and is driven to rotate by the water turbine for puncturing the metal plate at the bottom of the vehicle battery.

[0006] Further, the water mist spraying assembly comprises a plurality of water mist nozzles; the plurality of water mist nozzles are arranged on the support pipeline of the water supply pipe at intervals and communicated with the puncher for spraying water mist to the punctured hole and the surrounding area for external cooling.

[0007] Further, the connecting assembly comprises a pipe joint; the pipe joint is installed at the other end of the water supply pipe and connected with the water supply source of the fire hose and the fire hydrant.

[0008] Further, the fixing assembly comprises a hose and a plurality of water cylinders; the water cylinders are installed on the support body, and the plurality of water cylinders are uniformly arranged around the puncher; the adjacent two water cylinders are connected by the hose to form a water supply pipeline.

[0009] Further, the moving assembly comprises a plurality of pulleys; the plurality of pulleys are uniformly installed at the bottom of the support body in the circumferential direction.

[0010] Further, a fire extinguishing method of the portable water mist fire extinguishing device for puncturing under the vehicle is provided, and the fire extinguishing method comprises the following steps: S1, the operator wearing the firefighter equipment pushes the portable water mist fire extinguishing device for puncturing under the vehicle into the bottom of the thermal runaway electric vehicle; S2, the other end of the water supply pipe is connected with the fire hose and the water supply source of the fire hydrant for water supply; S3, the device is fixed between the automobile chassis and the ground by the water cylinder in the fixing assembly, and the water mist nozzles spray water mist for external cooling of the chassis; S4, the water flow drives the water turbine to rotate the puncher, and the punctured metal plate under the vehicle battery allows the water mist to enter the battery pack to achieve cooling, fire control and fire extinguishing.

[0011] The portable water mist fire extinguishing device for puncturing under the vehicle has the following beneficial effects: (1) The present application realizes the dual effects of external cooling under the vehicle and direct cooling of the lithium battery, the water turbine drives the puncher to puncture the metal plate under the vehicle battery, so that the water mist can be directly sprayed to the lithium battery area, compared with the existing flat plate type external water mist device, the fire extinguishing and cooling efficiency is greatly improved, the lithium battery thermal runaway fire can be quickly controlled, and cooling and fire extinguishing are achieved. (2) The device adopts a portable design, is equipped with a pulley at the bottom, can be directly and flexibly pushed under the battery of a new energy electric vehicle, is convenient to operate, and is suitable for emergency fire extinguishing needs in various scenes such as parking lots, ship-mounted vehicle storage and transportation, and firemen's fire extinguishing rescue. (3) The opening of the device is linked with the water spraying operation, the device fixing, chassis cooling, metal plate opening and direct water spraying cooling of the lithium battery can be realized synchronously after the fire hydrant valve is opened, the operation steps are simple, and the firemen can quickly carry out fire disposal. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 Structure diagram of the portable under-vehicle puncture water mist fire extinguishing device Figure One ; Figure 2 Structure diagram of the portable under-vehicle puncture water mist fire extinguishing device Figure Two ; Figure 3 is a sectional view in the A-A direction Figure 1 . Among them, 1, an opening device; 2, a water turbine; 3, a support body; 4, a pipe joint; 5, a water cylinder; 6, a pulley; 7, a water mist nozzle; 8, a hose; 9, a water supply pipe. DETAILED DESCRIPTION

[0013] The above description is only a summary of the technical scheme of the present application, in order to more clearly understand the technical means of the present application, and can be implemented according to the content of the specification, and in order to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described.

[0014] Example 1

[0015] Referring to Figures 1 to 3 , the portable under-vehicle puncture water mist fire extinguishing device comprises: The portable under-vehicle puncture water mist fire extinguishing device comprises: a support body 3; a water supply pipe 9, one end of the water supply pipe 9 being connected with the support body 3; a water mist spraying assembly, the water mist spraying assembly being installed on the support pipeline of the water supply pipe 9; a fixing assembly, the fixing assembly being connected at the bottom of the support body 3, and being used for fixing the device between the vehicle chassis and the ground after the device is in place; a power assembly, the power assembly being arranged on the support body 3 and being connected with the water supply pipe 9 and the water mist spraying assembly respectively, and being used for realizing the water spraying operation of the water mist spraying assembly and the puncture operation of the opening assembly driven by the power assembly by means of the water flow and pressure of the fire hydrant water supply; A connecting assembly is installed at the other end of the water supply pipe 9 for connecting the water supply pipe 9 with the water hose and the hydrant valve; A moving assembly is installed at the bottom of the bracket body 3 to facilitate the movement of the bracket body 3 during operation.

[0016] In this embodiment, the power assembly includes a water turbine 2 and a puncher 1; the water turbine 2 is in communication with the internal water passage of the water supply pipe 9 and is driven to rotate by the water flow; the puncher 1 is installed at one end of the water supply pipe 9 and is connected with the output shaft of the water turbine 2, and is driven to rotate by the water turbine 2, for puncturing the metal plate at the bottom of the vehicle battery.

[0017] In this embodiment, the water mist spraying assembly includes a plurality of water mist nozzles 7; the plurality of water mist nozzles 7 are arranged at intervals on the bracket pipe of the water supply pipe 9 and are arranged in communication with the puncher 1, for spraying water mist to the punctured hole and the surrounding area to externally cool.

[0018] Preferably, two water mist nozzles 7 are arranged at intervals on the bracket pipe of the water supply pipe 9, and the puncher 1 is arranged between the two water mist nozzles 7.

[0019] Through the above technical solution, under the direct drive of the water turbine 2, the puncher 1 rotates at high speed, which can quickly puncture the metal plate at the bottom of the vehicle battery pack, and open a channel for the water mist to directly spray to the battery pack, which is a key step to realize the direct cooling of the lithium battery.

[0020] In this embodiment, the connecting assembly includes a pipe joint 4; the pipe joint 4 is installed at the other end of the water supply pipe 9 and is connected with the water supply source of the fire hose and the hydrant.

[0021] In this embodiment, the fixing assembly includes a hose 8 and a plurality of water cylinders 5; the water cylinders 5 are installed on the bracket body 3, and the plurality of water cylinders 5 are evenly arranged around the puncher 1; two adjacent water cylinders 5 are connected by the hose 8 to supply water to the water supply pipe 9.

[0022] Preferably, four water cylinders 5 are arranged around the puncher 1.

[0023] Through the above technical solution, each water cylinder 5 is in communication with each other through the hose 8 to form a gas pressure balance system. When the external water pressure source (which can be integrated into the equipment or externally connected) supplies water to the water cylinder 5, the piston rod is synchronously lifted upward, so that the upper surface of the equipment is tightly attached to the automobile chassis, and the supporting feet are pressed against the ground, thereby stably clamping the equipment between the vehicle bottom and the ground, preventing movement or deviation during operation, and ensuring the stability and reliability of the puncture and water spraying process.

[0024] In this embodiment, the moving assembly includes a plurality of pulleys 6; the plurality of pulleys 6 are evenly installed at the bottom of the bracket body 3 in the circumferential direction.

[0025] Preferably, the pulley 6 is provided as four, and the four pulleys 6 are evenly installed at the four corners of the bottom of the support body 3.

[0026] Through the above technical scheme, the pulley 6 is installed at the bottom of the support body 3, so that the device can be easily pushed under the vehicle, realizing portable and quick and flexible operation.

[0027] Embodiment 2

[0028] A fire extinguishing method of a portable water mist fire extinguishing device under a vehicle, which is the fire extinguishing method of the portable water mist fire extinguishing device under a vehicle of Embodiment 1, the fire extinguishing method comprising the following steps: S1, the operator wearing the firefighter equipment pushes the portable water mist fire extinguishing device under the vehicle into the bottom of the thermal runaway electric vehicle; S2, the other end of the water supply pipe 9 is connected to the fire hose, and the water supply is connected to the hydrant water source; S3, the device is fixed between the automobile chassis and the ground through the water tank 5 in the fixed assembly, and the water mist nozzle 7 sprays water mist to cool the external chassis; S4, the water flow drives the water turbine 2 to rotate the perforator 1, and the water mist is punched into the battery pack to realize cooling, fire control and fire extinguishing.

[0029] The above is only the preferred embodiment of the present application, and does not limit the technical scope of the present application in any way. Therefore, any slight modification, equivalent change and modification made according to the technical essence of the present application to the above embodiment still belongs to the scope of the technical solution of the present application.

Claims

1. A portable under-vehicle puncture water mist fire extinguishing device, characterized in that, include: Support body; A water supply pipe, one end of which is connected to the main body of the support frame; A water mist spraying assembly, wherein the water mist spraying assembly is installed on the support pipe of the water supply pipe; A fixing component is connected to the bottom of the bracket body and is used to fix the equipment between the vehicle chassis and the ground after the equipment is in place; A power assembly is mounted on the main body of the support and is connected to the water supply pipe and the water mist spray assembly respectively. It is used to realize the water spraying operation of the water mist spray assembly and the piercing operation of the opening assembly by means of the water flow and pressure supplied by the fire hydrant. A connecting assembly is installed at the other end of the water supply pipe for connecting the water supply pipe to a fire hose and a fire hydrant valve; A movable component is mounted on the bottom of the support body to facilitate movement of the support body during operation.

2. The portable under-vehicle puncture water mist fire extinguishing device according to claim 1, characterized in that, The power assembly includes a water turbine and a hole punch; the water turbine is connected to the internal water passage of the water supply pipe and is driven to rotate by the water flow; the hole punch is installed at one end of the water supply pipe and connected to the output shaft of the water turbine, and is driven to rotate by the water turbine to pierce the metal plate at the bottom of the vehicle battery.

3. The portable under-vehicle puncture water mist fire extinguishing device according to claim 2, characterized in that, The water mist spraying assembly includes multiple water mist nozzles; the multiple water mist nozzles are spaced apart on the support pipe of the water supply pipe and are connected to the hole opener for spraying water mist into the puncture hole and surrounding area for external cooling.

4. The portable under-vehicle puncture water mist fire extinguishing device according to claim 3, characterized in that, The connection component includes a pipe thread interface; the pipe thread interface is installed at the other end of the water supply pipe and is connected to the water supply source of the fire hose and fire hydrant.

5. The portable under-vehicle puncture water mist fire extinguishing device according to claim 4, characterized in that, The fixing component includes a hose and multiple water cylinders; the water cylinders are mounted on the support body and the multiple water cylinders are evenly arranged around the opening; a water supply pipeline is connected between two adjacent water cylinders through the hose.

6. The portable under-vehicle puncture water mist fire extinguishing device according to claim 1, characterized in that, The movable component includes multiple pulleys; the multiple pulleys are evenly installed circumferentially at the bottom of the support body.

7. A method for extinguishing a fire using a portable under-vehicle puncture water mist fire extinguishing device, characterized in that, The fire extinguishing method of the portable vehicle under-vehicle puncture water mist fire extinguishing device according to any one of claims 1 to 6 includes the following steps: S1. Operators wearing firefighter gear push portable water mist extinguishing equipment from under the vehicle into the bottom of the thermal runaway electric vehicle. S2. The other end of the water supply pipe is connected to the fire hose and connected to the fire hydrant water supply source; S3. The equipment is fixed between the car chassis and the ground by the water cylinder in the fixing component, while the water mist nozzle sprays water mist to cool the external chassis. S4. The water flow drives the turbine to rotate the hole opener, which pierces the metal plate under the vehicle battery and sprays water mist into the battery pack to achieve cooling, fire control and fire extinguishing.

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