Spraying, cooling and fire extinguishing device for fire of electric automobile

Abstract

The utility model relates to the technical field of fire fighting equipment. A spraying, cooling and fire extinguishing device for an electric automobile on fire comprises a water conveying pipe set, the water conveying pipe set comprises a main pipe body and first branch pipe bodies, one end of the main pipe body is a water inlet end, the other end of the main pipe body is a closed end, and the first branch pipe bodies are horizontally arranged on the two sides of the main pipe body; one end of the first branch pipe body is communicated with the main pipe body, the other end of the first branch pipe body is connected with a first spraying head, the water outlet end of the first spraying head is vertically arranged upwards, and the water conveying pipe set is provided with a universal wheel set used for moving. The device has the advantages that the device can be rapidly moved to the position below the chassis of the new energy electric vehicle, cooling control and fire extinguishing treatment can be effectively conducted on a battery located on the chassis of the vehicle in time, and the fire behavior can be rapidly controlled.

Description

Technical Field

[0001] This utility model relates to the field of fire protection equipment technology, specifically to a fire extinguishing device for electric vehicles that uses a spray cooling system. Background Technology

[0002] Currently, with continuous technological advancements, new energy electric vehicles are becoming increasingly popular. Unlike internal combustion engine vehicles, new energy electric vehicles are powered entirely by rechargeable batteries such as lead-acid, nickel-cadmium, nickel-metal hydride, or lithium-ion batteries. To sustain long-term operation, these batteries require significant energy storage capacity and energy density. Furthermore, the batteries are typically installed at the bottom of the vehicle, and during operation, they inevitably encounter uneven surfaces. Impacts and pressure on the batteries can easily lead to fires. Additionally, prolonged use and aging can cause severe overheating during charging or discharging, potentially resulting in thermal runaway and fires. When firefighters address fires in new energy electric vehicles, the low chassis and the location of the battery at the bottom make it difficult for traditional firefighting equipment to accurately and quickly cool and extinguish the fire. Failure to cool and extinguish the battery promptly can allow the fire to spread or even cause a deflagration of the vehicle's chassis, creating a more dangerous situation. Summary of the Invention

[0003] The purpose of this invention is to provide a fire-fighting spray system for electric vehicles, which can be quickly moved to the underside of the chassis of a new energy electric vehicle to effectively cool and extinguish the fire of the battery located at the chassis.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A fire extinguishing device for electric vehicles, comprising a water supply pipe assembly, the water supply pipe assembly including a main pipe body and first branch pipe bodies, one end of the main pipe body being a water inlet end and the other end of the main pipe body being a closed end, several first branch pipe bodies being horizontally arranged on both sides of the main pipe body, one end of the first branch pipe body being connected to the main pipe body, and the other end of the first branch pipe body being connected to a first spray head, the water outlet end of the first spray head being vertically upward, and the water supply pipe assembly being provided with a caster wheel assembly for movement.

[0006] Furthermore, the main body includes a direct current pipe and a branch pipe connected by a first quick connector. The water inlet is located at the end of the direct current pipe away from the first quick connector, the closed end is located at the end of the branch pipe away from the first quick connector, and several first branch pipes are located on both sides of the branch pipe.

[0007] Furthermore, the diversion pipe is equipped with several second spray heads connected to it, and the water outlet end of the second spray head is set vertically upward.

[0008] Furthermore, the diversion pipe is a structure composed of multiple pipe sections connected by pipe joints. The pipe joint has one diversion interface or at least two second diversion interfaces. The first diversion interface is connected to the second spray head. The two second diversion interfaces are configured to connect the two first diversion pipe bodies coaxially.

[0009] Furthermore, the DC tube is provided with a fixing frame, and the two ends of the fixing frame are detachably connected to any two of the plurality of first branch tubes, and the two first branch tubes are located on both sides of the branch tube.

[0010] Furthermore, the water supply pipe assembly also includes two vertically arranged second branch pipes. One end of each of the two second branch pipes is connected to one end of the main pipe via a four-way connector. The other end of each of the two second branch pipes is equipped with a spray gun head. The two second branch pipes are symmetrical to each other along the central axis of the main pipe.

[0011] Furthermore, the second branch pipe body is a structure composed of two pipe sections connected by a second quick connector, and each of the two second branch pipe bodies is equipped with a switch valve.

[0012] Furthermore, it also includes protective baffles, which are vertically installed on the two second branch pipes, and the distance between the protective baffles and the nearest first branch pipe is set to be at least 2.1m.

[0013] Furthermore, the caster assembly includes a first caster and a second caster. The first caster is mounted on the first branch pipe body via a first mounting member, and the second caster is mounted on the second branch pipe body via a second mounting member.

[0014] The beneficial effects of this utility model are:

[0015] 1. The high-pressure water flow is connected to the main pipe. The device is then moved to the underside of the burning electric vehicle using the caster assembly. After being transported through the main pipe, the high-pressure water flow is distributed to each first branch pipe and then sprayed onto the chassis of the electric vehicle through the first spray head. This effectively cools and extinguishes the burning battery, preventing the burning electric vehicle from spreading to nearby parked cars, thus achieving the goal of quickly controlling the fire and ensuring the safety of life and property.

[0016] 2. When the high-pressure water flow is connected to the main pipe, the high-pressure water flow will be diverted to the second branch pipe. Through the spray gun head, it can spray the surface of the new energy electric vehicle to achieve synchronous cooling of the entire vehicle, preventing high temperature from causing fire and explosion of other equipment. At the same time, the spray water from the first spray head can effectively suppress the flames that are ejected outward due to the high temperature explosion of the burning battery. Attached Figure Description

[0017] Figure 1 This is a front view of a fire-fighting spray cooling device for electric vehicles according to this utility model.

[0018] Figure 2 This is a top view of a fire-fighting spray cooling device for electric vehicles according to this utility model.

[0019] Figure 3 This is a side view of a fire-fighting spray cooling device for electric vehicles according to this utility model. Detailed Implementation

[0020] The technical solutions in the embodiments of this utility model will now be described with reference to the accompanying drawings.

[0021] like Figure 1 , Figure 2 and Figure 3 As shown, a fire extinguishing device for electric vehicles that requires spraying and cooling includes a water supply pipe assembly. The water supply pipe assembly includes a main pipe body 1 and first branch pipe bodies 2. One end of the main pipe body 1 is a water inlet end, and the other end of the main pipe body 1 is a closed end. Several first branch pipe bodies 2 are horizontally arranged on both sides of the main pipe body 1. One end of each first branch pipe body 2 is connected to the main pipe body 1, and the other end of each first branch pipe body 2 is connected to a first spray head 3. The water outlet end of the first spray head 3 is vertically upward. The water supply pipe assembly is equipped with a caster wheel assembly for movement.

[0022] In this embodiment, a fire hose or a water supply device with a booster pump is first connected to the water inlet of the main pipe 1. Then, the device is moved to the underside of the burning new energy electric vehicle using a caster assembly. High-pressure water is directly output from the fire hose or from the water supply device after being pressurized by the booster pump. The high-pressure water is then distributed to each first branch pipe 2 after being transported through the main pipe 1. Finally, it is sprayed in a covering manner towards the chassis of the new energy electric vehicle through the first sprinkler head 3. This effectively cools and extinguishes the burning battery, slows down the ignition speed of the battery after thermal runaway, and prevents the burning new energy electric vehicle from affecting the surrounding parked cars. This achieves the goal of quickly controlling the fire and protecting life and property.

[0023] It should be noted that the main pipe 1 can be set to a certain length, so that the user can stand at a safe position relatively far away from the burning new energy electric vehicle, and push part of the first branch pipe 2 under the chassis of the burning new energy electric vehicle by holding the main pipe 1. At the same time, the user can maintain a safe position and enter the high-pressure water flow from the water inlet of the main pipe 1, so as to avoid the user being burned by high temperature or explosion during the operation.

[0024] It should be noted that multiple first spray heads 3 can achieve large-area water spraying, thereby realizing full-coverage cooling control and fire extinguishing of the chassis of new energy electric vehicles, suppressing the flames ejected outward due to high-temperature deflagration of the battery, and stabilizing the fire.

[0025] It should be noted that the water supply pipe assembly is made of galvanized metal, which can effectively resist the burning of high-temperature flames and ensure the stable execution of cooling and fire extinguishing operations.

[0026] The main body 1 includes a direct current pipe 1b and a branch pipe 1c connected by a first quick connector 1a. The inlet end is located at the end of the direct current pipe 1b away from the first quick connector 1a, and the closed end is located at the end of the branch pipe 1c away from the first quick connector 1a. Several first branch pipe bodies 2 are located on both sides of the branch pipe 1c. The first quick connector 1a is used to separate the direct current pipe 1b and the branch pipe 1c or connect them into one unit, which can effectively reduce the space occupied by the device and facilitate its storage and transportation.

[0027] The diversion pipe 1c is equipped with several second spray heads 4 connected to it, and the water outlet of the second spray heads 4 is vertically upward. The second spray heads 4 are used to spray the middle part of the new energy electric vehicle in a concentrated manner, forming a large area of ​​spray water in conjunction with the first spray heads 3. Considering the distribution of chassis components of the new energy electric vehicle, increasing the spray configuration of the second spray heads 4 can relatively reduce the number of the first diversion pipe 2 and the first spray heads 3, achieving the purpose of lightweighting the device and reducing the actual manufacturing cost.

[0028] The diversion pipe 1c is a structure composed of multiple pipe sections connected by pipe joints 1d. Each pipe joint 1d has a first diversion interface 1e or at least two second diversion interfaces 1f. The first diversion interface 1e is connected to the second spray head 4. The two second diversion interfaces 1f are configured to connect the two first branch pipe bodies 2 coaxially. The diversion pipe 1c is composed of multiple pipe sections connected by pipe joints 1d. Simultaneously, utilizing the first diversion interface 1e or the second diversion interface 1f of the pipe joint 1d, the second spray head 4 and the first branch pipe body 2 can be arbitrarily connected and combined with the diversion pipe 1c to form a multi-path diversion spray effect. Based on the actual size of the new energy electric vehicle on fire, the diversion pipe 1c, the first branch pipe body 2, and the second spray head 4 can be assembled on-site, adjusting the overall space occupied. This not only ensures that the first branch pipe body 2 and the second spray head 4 can smoothly enter under the chassis of the new energy electric vehicle, but also ensures full coverage spraying of the new energy electric vehicle chassis.

[0029] The DC pipe 1b is equipped with a fixing frame 5. Both ends of the fixing frame 5 are detachably connected to any two of the several first branch pipe bodies 2, and the two first branch pipe bodies 2 are located on either side of the branch pipe 1c. When the user uses the DC pipe 1b to move the device, the connection between the DC pipe 1b and the branch pipe 1c forms one force point, while the fixing frame 5 forms two additional force points. Applying force simultaneously through these three force points not only allows the first branch pipe body 2 to be moved quickly, accurately, and stably under the chassis of the new energy electric vehicle, ensuring precise coverage of the spray water, but also prevents the DC pipe 1b from bending, extending the service life of the device. It should be noted that the fixing frame 5 and the first branch pipe body 2 are detachably connected. Figure 1 It is known that the fixing frame 5 is equipped with holes that allow the first branch tube 2 to be inserted or pulled out, so that the fixing frame 5 can stably form an additional force point on the first branch tube 2, and also ensure that the device can be disassembled and stored, making it convenient to carry and transport.

[0030] The water supply pipe assembly also includes two vertically arranged second branch pipes 6. One end of each second branch pipe 6 is connected to one end of the main pipe 1 via a four-way connector 7. The other end of each second branch pipe 6 is equipped with a spray nozzle 8. The two second branch pipes 6 are symmetrical about each other along the central axis of the main pipe 1. The water inlet end of the main pipe 1 is additionally equipped with a four-way connector 7 to ensure that while high-pressure water can be supplied to the main pipe 1, the high-pressure water is also diverted to the two second branch pipes 6 through the four-way connector 7. Then, water is sprayed outward using the spray nozzle 8, mainly targeting the surface of new energy electric vehicles to cool and extinguish fires on the vehicle body, achieving simultaneous cooling of the entire vehicle body.

[0031] The second branch pipe body 6 is a structure formed by connecting two pipe sections through a second quick connector 6a, and each of the two second branch pipe bodies 6 is equipped with a switch valve 9. This device can control the spray direction of the spray nozzle 8 by rotating the second quick connector 6a. Adjusting the direction of the spray nozzle 8 not only concentrates the spray water on the front of the new energy electric vehicle, which is prone to catching fire due to high temperature, achieving rapid and precise regional cooling, but also, when the battery explodes due to severe thermal runaway and sprays fire outward from the chassis, it can work with the spray nozzle of the first spray nozzle 3 to form a staggered coverage of spray water, suppressing the outward spraying and spread of flames. It should be noted that the two pipe sections of the second branch pipe body 6 can be disassembled and assembled at any time through the second quick connector 6a, so as to replace the spray nozzle 8 located at a high position at any time. In the actual fire handling process, different types of water spray patterns formed by the spray nozzle 8 can be used to specifically deal with the situation where the new energy electric vehicle unexpectedly reignites due to continuous high temperature and excessive combustion, and the chassis sprays fire. At the same time, the entire replacement process is simple and fast. The function of the switch valve 9 is to cut off the water supply during the replacement of the spray nozzle 8 or when the spray nozzle 8 is not needed, so as to avoid wasting water.

[0032] It also includes a protective baffle 10, which is vertically mounted on the two second branch pipe bodies 6. The distance between the protective baffle 10 and the nearest first branch pipe body 2 is set to at least 2.1m. The protective baffle 10 can provide fireproof and heat insulation, effectively preventing users from being burned or injured by high temperatures during operation. It also provides users with a point of force to grip and push the device, so as to quickly align it with the accessible position of the vehicle chassis.

[0033] The caster assembly includes a first caster 11 and a second caster 12. The first caster 11 is mounted on the first branch pipe body 2 via a first mounting member 13, and the second caster 12 is mounted on the second branch pipe body 6 via a second mounting member 14. The first caster 11 provides support and movement for the first branch pipe body 2, and the second caster 12 provides support and movement for the second branch pipe body 6. The caster assembly not only enables the water pipe assembly to move in a balanced and stable manner, but also allows the user to easily and quickly move it.

Claims

1. An electric vehicle fire extinguishing and cooling device, comprising a water delivery pipe group, characterized in that: The water supply pipe assembly includes a main pipe (1) and a first branch pipe (2). One end of the main pipe (1) is the water inlet end, and the other end of the main pipe (1) is the closed end. Several first branch pipes (2) are horizontally arranged on both sides of the main pipe (1). One end of the first branch pipe (2) is connected to the main pipe (1), and the other end of the first branch pipe (2) is connected to a first spray head (3). The water outlet end of the first spray head (3) is vertically upward. The water supply pipe assembly is equipped with a caster wheel assembly for movement.

2. The electric vehicle fire spraying, cooling and extinguishing device according to claim 1, characterized in that: The main body (1) includes a direct current pipe (1b) and a branch pipe (1c) connected by a first quick connector (1a). The water inlet is located at the end of the direct current pipe (1b) away from the first quick connector (1a), and the closed end is located at the end of the branch pipe (1c) away from the first quick connector (1a). Several first branch pipe bodies (2) are located on both sides of the branch pipe (1c).

3. The electric vehicle fire spraying, cooling and extinguishing device according to claim 2, characterized in that: The diversion pipe (1c) is provided with several second spray heads (4) connected to it, and the water outlet end of the second spray head (4) is set vertically upward.

4. The electric vehicle fire sprinkler cooling and extinguishing device according to claim 3, characterized in that: The diversion pipe (1c) is a structure composed of multiple pipe sections connected by a pipe joint (1d). The pipe joint (1d) has a first diversion interface (1e) or at least two second diversion interfaces (1f). The first diversion interface (1e) is connected to the second spray head (4). The two second diversion interfaces (1f) are configured to connect the two first diversion pipe bodies (2) coaxially.

5. The electric vehicle fire sprinkler cooling and extinguishing device according to claim 2, 3 or 4, characterized in that: The DC tube (1b) is provided with a fixing frame (5), and the two ends of the fixing frame (5) can be detachably connected to any two of the several first branch tubes (2), and the two first branch tubes (2) are located on both sides of the branch tube (1c).

6. The electric vehicle fire sprinkler cooling and extinguishing device according to claim 1, characterized in that: The water supply pipe assembly also includes two vertically arranged second branch pipe bodies (6). One end of the two second branch pipe bodies (6) is connected to one end of the main pipe body (1) through a four-way connector (7). The other end of the two second branch pipe bodies (6) is provided with a spray gun head (8). The two second branch pipe bodies (6) are symmetrical to each other along the central axis of the main pipe body (1).

7. The electric vehicle fire spraying, cooling and extinguishing device according to claim 6, characterized in that: The second branch pipe body (6) is a structure consisting of two pipe sections connected by a second quick connector (6a), and each of the two second branch pipe bodies (6) is equipped with a switch valve (9).

8. The electric vehicle fire sprinkler cooling and extinguishing device according to claim 6 or 7, characterized in that: It also includes a protective baffle (10), which is vertically installed on the two second branch pipe bodies (6), and the distance between the protective baffle (10) and the nearest first branch pipe body (2) is set to be at least 2.1m.

9. The electric vehicle fire spraying, cooling and extinguishing device according to claim 6, characterized in that: The caster assembly is provided with a first caster (11) and a second caster (12). The first caster (11) is mounted on the first branch pipe body (2) via a first mounting member (13), and the second caster (12) is mounted on the second branch pipe body (6) via a second mounting member (14).

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