An automatic fire extinguishing system for electric vehicle garages

Abstract

The utility model relates to fire extinguishing system technical field, specifically disclose a kind of automatic fire extinguishing system for electric vehicle garage, automatic fire extinguishing system can be used to connect with fire pipeline, fire pipeline is arranged on the top wall, side wall and ground of electric vehicle garage, automatic fire extinguishing system includes several smoke detectors, several strip fixed cover, several nozzles, several anti-climbing fences and the liquid storage tank, equal proportion mixer and control unit arranged in anti-climbing fence, several smoke detectors are set on the wall above each parking space of electric vehicle garage, several strip fixed cover are set on each parking space of electric vehicle garage, and each strip fixed cover is equipped with delivery channel, several nozzles are spaced apart on delivery channel and communicated between the two. The automatic fire extinguishing system of the utility model detects flame radiation by flame detector inserted on each strip fixed cover, so that electric vehicle can be detected at close range.

Description

Technical Field

[0001] This utility model belongs to the field of fire extinguishing system technology, specifically an automatic fire extinguishing system for electric vehicle garages. Background Technology

[0002] The core component of electric vehicles is the lithium battery, which presents unique dangers when it catches fire. When a lithium battery experiences thermal runaway, it triggers a violent chemical reaction, producing high temperatures, flammable gases, and large amounts of smoke. Unlike ordinary flammable material fires, lithium battery fires are a composite type of Class B fires (liquid fires) and Class E fires (electrical fires), characterized by high temperature, high energy, and continuous combustion.

[0003] Furthermore, lithium batteries are flammable, and when they first catch fire, it is not easily detected. Lithium battery fires are also prone to reignition; even if the surface flames are extinguished, the chemical reaction inside the battery may continue, reigniting the fire after a period of time. This uncertainty makes firefighting more complex and dangerous, as firefighters struggle to determine if the fire is truly extinguished. Existing fire suppression systems cannot monitor and extinguish the fire in real time at the location closest to the lithium battery. Therefore, there is an urgent need to design an automatic fire suppression system for electric vehicle garages to monitor the chassis of electric vehicles in real time, enabling timely extinguishing of fires in the event of an incident. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic fire extinguishing system for electric vehicle garages, which solves the problems of existing fire extinguishing systems that do not have monitoring devices and fire extinguishing mechanisms installed at close range of the lithium battery ignition point, thus failing to extinguish fires when they are small, and failing to monitor the fire situation in real time.

[0005] To solve the above-mentioned technical problems, this utility model provides an automatic fire extinguishing system for electric vehicle garages. The automatic fire extinguishing system can be connected to fire-fighting pipelines, which are installed on the top wall, side walls, and ground of the electric vehicle garage. The automatic fire extinguishing system includes several smoke detectors, several strip-shaped fixed covers, several nozzles, several anti-climb fences, and a raw material storage tank, a proportional mixer, and a control unit installed within the anti-climb fences. Several smoke detectors are installed on the wall above each parking space in the electric vehicle garage. Several strip-shaped fixed covers are installed on the ground of each parking space in the electric vehicle garage. Each strip-shaped fixed cover has a conveying channel. Several nozzles are spaced apart on the conveying channel and connected to it. Each strip-shaped fixed cover is equipped with a flame detector for detecting flame radiation. Each strip-shaped fixed cover has a shielding component for blocking or moving the nozzle nozzles. The top of each strip-shaped fixed cover has a second through hole concentrically corresponding to each nozzle.

[0006] The anti-climb fence is installed in the safety area of ​​the electric vehicle garage. The proportional mixer has two inlets and one outlet. One inlet of the proportional mixer is connected to the raw material storage tank, and the other inlet is connected to the fire-fighting pipeline through a first conveying pipe. The outlet is connected to the corresponding conveying channel through several second conveying pipes. Solenoid valves are connected to both the second conveying pipes and the fire-fighting pipeline. The control unit is connected to the smoke detector, flame detector, solenoid valve, raw material storage tank and proportional mixer respectively.

[0007] Furthermore, each shielding component includes a cylinder, a push plate, and a moving plate. The cylinder is disposed inside the strip-shaped fixed cover and its bottom is fixed to the parking space. The cylinder is connected to the control unit. The push plate is vertically fixed on the output end of the cylinder. The moving plate is fixed on the top of the push plate and is parallel to the cylinder. The moving plate has several first through holes. The cylinder drives the moving plate to move, so that each second through hole is concentric or offset from the corresponding first through hole and the nozzle.

[0008] Furthermore, each of the strip-shaped fixing covers is arranged parallel to the long side direction of each parking space.

[0009] Furthermore, the conveying channel consists of several sections of third conveying pipes and connectors disposed between adjacent sections of third conveying pipes. The vertical cross-section of the connector is inverted T-shaped, and the nozzle is connected to the upper end of the connector.

[0010] Furthermore, each of the strip-shaped fixing covers contains at least three nozzles, and the lower end of each nozzle is threadedly connected to the connector.

[0011] Furthermore, a hand-push fire extinguisher is installed inside the anti-climb fence, and the hand-push fire extinguisher is equipped with a spray nozzle.

[0012] The beneficial effects of this utility model are as follows: The automatic fire extinguishing system of this utility model can detect flame radiation by inserting flame detectors on each strip fixed cover, so as to detect electric vehicles at close range, improve safety, and effectively avoid the risk that the electric vehicle in the parking space is not easily detected when it first starts to burn.

[0013] By adjusting the first through hole on the moving plate of the shielding assembly to be concentric or staggered with the second through hole and the nozzle, the shielding assembly in each strip-shaped fixed cover can block or not block several nozzles, so that the nozzles stop or spray the extinguishing agent mixture. In addition, the control unit controls the solenoid valve, so as to control the amount of extinguishing agent mixture through dual control. At the same time, the shielding assembly can prevent the leakage of the extinguishing agent mixture in the second delivery pipe and delivery channel, which would cause the parking space to be dirty and messy.

[0014] The delivery channel is designed to deliver the extinguishing agent mixture to each nozzle via connections between several sections of the third delivery pipeline and adjacent sections of the third delivery pipeline, and then spray it out from the nozzle to extinguish fires on multiple parts of the electric vehicle, thereby improving the fire extinguishing efficiency of the electric vehicle. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is an overall structural diagram of the automatic fire extinguishing system for electric vehicle garages according to this utility model;

[0017] Figure 2 This is a cross-sectional view of both ends of the automatic fire extinguishing system for electric vehicle garages according to this utility model;

[0018] Figure 3 This is a partial cross-sectional view of the end of the electric vehicle garage automatic fire extinguishing system of this utility model.

[0019] Figure 4This is a cross-sectional view of the automatic fire extinguishing system for electric vehicle garages of this utility model, which has a strip-shaped fixing cover.

[0020] Figure 5 This is a cross-sectional view of the automatic fire extinguishing system for electric vehicle garages of this utility model after removing the strip fixing cover;

[0021] Figure 6 This is a structural diagram of the connectors and nozzles of the automatic fire extinguishing system for electric vehicle garages according to this utility model;

[0022] In the diagram: 1-Automatic fire extinguishing system, 2-Fire pipe, 3-Electric vehicle garage, 4-Shielding assembly, 10-Flame detector, 11-Smoke detector, 12-Strip fixed cover, 13-Nozzle, 14-Anti-climb fence, 15-Original liquid storage tank, 16-Proportional mixer, 17-Second delivery pipe, 18-Push-operated fire extinguisher, 19-First delivery pipe, 31-Parking space, 41-Cylinder, 42-Push plate, 43-Moving plate, 121-Delivery channel, 122-Second through hole, 431-First through hole, 1211-Third delivery pipe, 1212-Connector, 181-Spray head. Detailed Implementation

[0023] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] In one specific embodiment of this utility model, such as Figure 1-6As shown, an automatic fire extinguishing system for an electric vehicle garage is disclosed. The automatic fire extinguishing system 1 can be connected to a fire extinguishing pipe 2, which runs through the top wall, side walls, and floor of the electric vehicle garage 3. The automatic fire extinguishing system 1 includes several smoke detectors 11, several strip-shaped fixed covers 12, several nozzles 13, several anti-climb fences 14, and a raw material storage tank 15, a proportional mixer 16, and a control unit installed within the anti-climb fences 14. The smoke detectors 11 are installed on the wall above each parking space 31 in the electric vehicle garage 3, and the strip-shaped fixed covers 12... Each strip-shaped fixing cover 12 is set on the ground of each parking space 31 in the electric vehicle garage 3. Each strip-shaped fixing cover 12 is parallel to the long side of each parking space 31. Each strip-shaped fixing cover 12 is provided with a conveying channel 121. Several nozzles 13 are spaced apart on the conveying channel 121 and are connected to each other. Each strip-shaped fixing cover 12 is provided with a flame detector 10 for detecting flame radiation. Each strip-shaped fixing cover 12 is provided with a shielding component 4 for blocking or moving the nozzles 13. The top of the strip-shaped fixing cover 12 is provided with a second through hole 122 that is concentrically corresponding to each nozzle 13.

[0025] The anti-climb fence 14 is set in the safety area of ​​the electric vehicle garage 3. The proportional mixer 16 has two inlets and one outlet. One of the inlets of the proportional mixer 16 is connected to the raw liquid storage tank 15, and the other inlet is connected to the fire pipe 2 through the first conveying pipe 19. The outlet is connected to the corresponding conveying channel 121 through several second conveying pipes 17. The anti-climb fence 14 is also equipped with a push-type fire tank 18. The push-type fire tank 18 is equipped with a spray head 181 and is used to assist in fire extinguishing. Solenoid valves are connected to the second conveying pipes 17 and the fire pipe 2. The control unit is connected to the smoke detector 11, the flame detector 10, the solenoid valve, the raw liquid storage tank 15 and the proportional mixer 16 respectively.

[0026] The automatic fire extinguishing system can detect flame radiation by inserting flame detectors 10 on each strip fixed cover 12, so as to detect electric vehicles at close range, improve safety, and effectively avoid the risk that the electric vehicle in the parking space 31 may not be detected when it first starts to burn.

[0027] Each shielding assembly 4 includes a cylinder 41, a push plate 42, and a moving plate 43. The cylinder 41 is disposed inside the strip-shaped fixed cover 12 and its bottom is fixed to the parking space 31. The cylinder 41 is connected to the control unit. The push plate 42 is vertically fixed on the output end of the cylinder 41. The moving plate 43 is fixed on the top of the push plate 42 and is parallel to the cylinder 41. The moving plate 43 has several first through holes 431. The length of the moving plate 43 is less than the length of the inner cavity of the strip-shaped fixed cover 12. The cylinder 41 drives the moving plate 43 to move, so that each second through hole 122 is concentric or staggered with the corresponding first through hole 431 and nozzle 13.

[0028] By adjusting the first through hole 431 on the moving plate 43 of the shielding assembly 4 to be concentric or staggered with the second through hole 122 and the nozzle 13, the shielding assembly 4 in each strip-shaped fixed cover 12 can block or not block several nozzles 13, so that the nozzles 13 stop or spray the extinguishing agent mixture. In addition, the control unit controls the solenoid valve, and the amount of extinguishing agent mixture is controlled through dual control. At the same time, the shielding assembly 4 can prevent the extinguishing agent mixture remaining in the second delivery pipe 17 and delivery channel 121 from seeping out and causing the parking space 31 to be dirty.

[0029] The conveying channel 121 consists of several sections of third conveying pipe 1211 and connectors 1212 disposed between adjacent sections of third conveying pipe 1211. The vertical cross section of the connector 1212 is inverted T-shaped. The upper end of the connector 1212 is connected to a nozzle 13. Each strip-shaped fixing cover 12 contains at least three nozzles 13. The lower end of each nozzle 13 is threadedly connected to the connector 1212.

[0030] The delivery channel 121 is configured to deliver the extinguishing agent mixture to each nozzle 13 through the connectors 1212 between several sections of the third delivery pipe 1211 and adjacent sections of the third delivery pipe 1211, and spray it out from the nozzles 13 to spray and extinguish fires on multiple parts of the electric vehicle, thereby improving the fire extinguishing efficiency of the electric vehicle. In this embodiment, the connector 1212 is a three-way connector.

[0031] The working process of this utility model is as follows:

[0032] When a fire occurs, the flame detector 10 on the ground of parking space 31 in the electric vehicle garage 3 detects the flame radiation emitted from the electric vehicle and sends a signal to the control unit. The smoke detector 11 also sends a signal to the control unit after detecting smoke. At the same time as the fire, the control unit sends a signal to the alarm device, which then sounds an alarm. Upon receiving the signal, the control unit controls the cylinder 41 to retract, thereby moving the push plate 42 and the moving plate 43 so that the several first through holes 431 on the moving plate 43 are concentric with the nozzle 13. Simultaneously, the control unit controls the original liquid storage tank 15 to mix the liquid in a proportional manner. Fire extinguishing agent is introduced into the mixer 16, and fire water is introduced into the proportional mixer 16 through the first delivery pipe 19. The proportional mixer 16 mixes the two to obtain a fire extinguishing agent mixture. The control unit controls the solenoid valve on the second delivery pipe 17 to open. The fire extinguishing agent mixture after mixing is delivered to the corresponding delivery channel 121 through the second delivery pipe 17. The fire extinguishing agent mixture is then delivered to several nozzles 13 of the corresponding electric vehicle through the third delivery pipe 1211 of the delivery channel 121 and then through the connector 1212. The mixture is then sprayed from the nozzles 13 onto the electric vehicle that is on fire to extinguish the fire.

[0033] Upon receiving the alarm, personnel can push the hand-operated fire extinguisher 18 to the fire scene to extinguish the fire while waiting for the firefighters to arrive.

[0034] When the fire is extinguished, the control unit controls the solenoid valve on the second delivery pipe 17 to close, and at the same time controls the cylinder 41 to extend, so as to drive the push plate 42 and the moving plate 43 to move, so that the several first through holes 431 on the moving plate 43 are misaligned with the nozzle 13, thereby blocking the spray port of the nozzle 13.

[0035] The above-disclosed embodiment is merely a preferred embodiment of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An automatic fire extinguishing system for an electric vehicle garage, wherein the automatic fire extinguishing system (1) can be connected to a fire-fighting pipe (2), the fire-fighting pipe (2) passing through the top wall, side walls and floor of the electric vehicle garage (3), characterized in that, The automatic fire extinguishing system (1) includes several smoke detectors (11), several strip-shaped fixed covers (12), several nozzles (13), several anti-climb fences (14), and a raw material storage tank (15), a proportional mixer (16), and a control unit installed inside the anti-climb fences (14). Several of the smoke detectors (11) are installed on the wall above each parking space (31) of the electric vehicle garage (3). A plurality of strip-shaped fixing covers (12) are installed on the ground of each parking space (31) of the electric vehicle garage (3). Each strip-shaped fixing cover (12) is provided with a conveying channel (121). A plurality of nozzles (13) are spaced apart on the conveying channel (121) and the two are connected. Each strip-shaped fixing cover (12) is provided with a flame detector (10) for detecting flame radiation. Each strip-shaped fixing cover (12) is provided with a shielding component (4) for shielding or moving away the nozzles (13). The top of the strip-shaped fixing cover (12) is provided with a second through hole (122) that is concentrically corresponding to each nozzle (13). The anti-climb fence (14) is set in the safe area of ​​the electric vehicle garage (3). The proportional mixer (16) has two inlets and one outlet. One of the inlets of the proportional mixer (16) is connected to the raw liquid storage tank (15), and the other inlet is connected to the fire-fighting pipeline (2) through the first conveying pipe (19). The outlet is connected to the corresponding conveying channel (121) through several second conveying pipes (17). Solenoid valves are connected to the second conveying pipes (17) and the fire-fighting pipeline (2). The control unit is connected to the smoke detector (11), the flame detector (10), the solenoid valve, the raw liquid storage tank (15), and the proportional mixer (16) respectively.

2. The automatic fire extinguishing system for electric vehicle garages according to claim 1, characterized in that, Each shielding component (4) includes a cylinder (41), a push plate (42), and a moving plate (43). The cylinder (41) is disposed inside the strip-shaped fixed cover (12) and its bottom is fixed on the parking space (31). The cylinder (41) is connected to the control unit. The push plate (42) is vertically fixed on the output end of the cylinder (41). The moving plate (43) is fixed on the top of the push plate (42) and is parallel to the cylinder (41). The moving plate (43) has several first through holes (431). The cylinder (41) drives the moving plate (43) to move, so that each second through hole (122) is concentric or staggered with the corresponding first through hole (431) and the nozzle (13).

3. An automatic fire extinguishing system for electric vehicle garages according to claim 1, characterized in that, Each of the strip-shaped fixing covers (12) is arranged parallel to the long side of each of the parking spaces (31).

4. An automatic fire extinguishing system for electric vehicle garages according to claim 2, characterized in that, The conveying channel (121) consists of several sections of third conveying pipe (1211) and connectors (1212) arranged between adjacent sections of third conveying pipe (1211). The several sections of third conveying pipe (1211) are all located below the moving plate (43). The vertical cross section of the connector (1212) is inverted T-shaped. The upper end of the connector (1212) is connected to the nozzle (13).

5. An automatic fire extinguishing system for electric vehicle garages according to claim 4, characterized in that, Each of the strip-shaped fixing covers (12) contains at least three nozzles (13), and the lower end of each nozzle (13) is threadedly connected to the connector (1212).

6. An automatic fire extinguishing system for electric vehicle garages according to claim 1, characterized in that, The anti-climb fence (14) is also equipped with a hand-push fire extinguisher (18), and the hand-push fire extinguisher (18) is equipped with a spray head (181).

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