Fireproof device for lithium battery electric automobile in underground garage

Abstract

The utility model discloses an underground garage lithium battery electric automobile fireproof device which comprises a material storage tank, fire extinguishing materials are contained in the material storage tank, an output pipe is connected to the outer side wall of the material storage tank, and a material pump is connected to the output pipe; the spraying pipe group is communicated with the discharging end of the material pump, the spraying pipe group is arranged above the parking space, the end part of the spraying pipe group is connected with a spraying table, and the spraying table is connected with a spraying head and a smoke temperature sensor; the folding film bag is annular and is arranged on the peripheral side of the vehicle, one end of the folding film bag is connected with a feeding pipe, the feeding pipe is connected and communicated with the discharging end of the material pump, the folding film bag is supported in an external material supply state and forms an isolation fence, and a fire extinguishing material sprayed by the spraying head is temporarily stored in the isolation fence and immerses an ignition point; the control console is fixed on one side of the material storage tank and is respectively in electric signal connection with the material pump and the smoke temperature sensor. The fire extinguishing device can avoid fire spreading, effectively extinguish fire and reduce property loss.

Description

Technical Field

[0001] This utility model belongs to the field of fire prevention and disaster prevention technology for underground garages, specifically relating to a fire prevention device for lithium battery electric vehicles in underground garages. Background Technology

[0002] With the rapid growth in the production, sales, and ownership of new energy vehicles, the risk of fire accidents caused by them is becoming increasingly prominent. High-voltage batteries, as a core component of new energy vehicles, have complex cell assembly structures and their electrochemical performance and stability differ significantly from traditional fossil fuels. During use, internal causes such as internal short circuits, overcharging, and overheating, or external causes such as vehicle electrical faults, can lead to battery fires. Furthermore, lithium battery fire prevention and extinguishing agent selection differ drastically from those for traditional vehicles. Therefore, adopting effective lithium battery fire prevention measures to reduce the fire risk of new energy vehicles is of significant practical importance.

[0003] Underground parking garages have a unique storage environment where cars are parked side by side. If a car catches fire and the fire cannot be properly prevented or extinguished, it can cause a widespread fire and result in serious property damage.

[0004] Therefore, how to provide a fire prevention device for lithium battery electric vehicles in underground garages is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the present invention provides a fire prevention device and method for lithium battery electric vehicles in underground garages, which can effectively improve the safety of new energy vehicles in underground garages.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a fire prevention device for lithium battery electric vehicles in underground garages, comprising:

[0007] A storage tank containing fire extinguishing materials, an output pipe connected to the outer wall of the storage tank, and a material pump connected to the output pipe;

[0008] A spray pipe assembly is connected to the discharge end of the material pump. The spray pipe assembly is arranged above the parking space. A spray table is connected to the end of the spray pipe assembly. A spray head and a smoke temperature sensor are connected to the spray table.

[0009] A folded membrane bag, which is ring-shaped, is arranged on the outer periphery of the vehicle. One end of the folded membrane bag is connected to a feed pipe, which is connected to and communicates with the discharge end of the feed pump. When the folded membrane bag is in the external feeding state, it is supported and forms an isolation barrier. The fire extinguishing material sprayed by the sprinkler head is temporarily stored in the isolation barrier and submerges the ignition point.

[0010] The control console is fixed to one side of the storage tank and is electrically connected to the material pump and the smoke temperature sensor, respectively.

[0011] The beneficial technical effects of this utility model are as follows: When not in use, the folded film bag is in a folded and compressed state, which will not affect the vehicle's entry into the parking space. When a fire occurs, the folded film bag can be unfolded to form an isolation barrier by filling it with fire extinguishing material, blocking the outside of the parked vehicle. At the same time, the sprinkler head can spray fire extinguishing material to extinguish the fire. For situations where it is difficult to spray fire extinguishing material in hidden fire extinguishing locations, the isolation barrier can temporarily store fire extinguishing material, which accumulates until it submerges the fire point, thus completing the fire extinguishing.

[0012] Preferably, the folded film bag has an internal ring with a discharge pipe, the discharge pipe has multiple discharge holes, the discharge pipe has an adapter for connecting to an external material pump, the folded film bag is a sealed pressure-bearing film bag, and the unfolded height of the folded film bag is 50cm to 80cm.

[0013] The resulting technical effect is that, in order to improve the fixed installation and filling effect of the folded film bag, a discharge pipe is installed inside the folded film bag, which can stabilize the installation position of the folded film bag.

[0014] Preferably, the top of the folded film bag is provided with a support plate.

[0015] The resulting technical effect is that when installing folded film bags, a ring groove is usually opened near the parking space line, and the support plate can cover the ring groove when the equipment is idle, so as not to affect the vehicle entry. The support plate can also support the shape of the top opening of the folded film bag well.

[0016] Preferably, the discharge end of the material pump is connected to a spray branch pipe and a membrane bag branch pipe. The spray branch pipe is connected to the spray pipe assembly, and the membrane bag branch pipe is connected to the folded membrane bag. A pressure regulating valve is connected to the membrane bag branch pipe.

[0017] The resulting technical effect is that the discharge end of the material pump has two outlets. One outlet is connected to the spray pipe assembly for spraying fire extinguishing materials, and the other outlet is connected to the folded membrane bag, which can be unfolded to serve as an isolation barrier. The isolation barrier can, on the one hand, block the extension of the fire point to avoid major property damage, and on the other hand, it can better extinguish the fire point inside the barrier, thus achieving effective fire extinguishing and fire prevention.

[0018] Preferably, the storage tank is connected to the fire protection pipeline of the underground garage, and a valve is installed on the connecting pipe between the storage tank and the fire protection pipeline. The valve is electrically connected to the control console.

[0019] The resulting technical effect is that it can also be connected to fire-fighting pipelines to use fire-fighting water to extinguish fires and prevent the spread of the fire.

[0020] Preferably, the fire extinguishing material is a water-based fire extinguishing agent.

[0021] The resulting technical effect is that water-based fire extinguishing agents are easy to spray and can be effectively stored and used for fire extinguishing.

[0022] This utility model also discloses a fire prevention method for lithium battery electric vehicles in underground garages, which uses the aforementioned fire prevention device and includes the following steps:

[0023] Step 1: Create a groove near the parking space. Create a ring groove near the parking space line of the underground parking space. The groove depth should be sufficient to meet the embedding requirements of the folded film bag.

[0024] Step 2: Assembly and adjustment of the equipment. Fix the folded film bag in the annular groove. The top support plate of the folded film bag covers the opening of the annular groove. Place the storage tank in a suitable position and connect it to the pipeline of the spray pipe assembly and the folded film bag. The spray table needs to be located above the parked vehicle.

[0025] Step 3: Debugging. Use the material pump to fill the extinguishing material into the folded material bag. The folded material bag unfolds and extends out of the annular groove to form an isolation barrier. The isolation barrier is set up around the outer perimeter of the parked vehicle. Turning on the material pump causes the sprinkler head to spray out the extinguishing material. The extinguishing material gradually accumulates inside the isolation barrier and submerges the fire point, completing the fire extinguishing.

[0026] The beneficial effects of this utility model are: the groove near the parking space line provides an installation environment for the folded film bag, the spray station on the spray pipe assembly is located above the parked vehicle, which does not affect the normal entry and exit of the vehicle, this utility model detects the fire by using a smoke temperature sensor, and uses the control console to control the material pump to supply material into the folded film bag, the isolation barrier in the unfolded state can effectively prevent the fire from spreading, and the spray head can effectively extinguish the fire.

[0027] Preferably, in step two, the storage tank is connected to the fire-fighting pipeline and provides fire-fighting water to the sprinkler heads.

[0028] The resulting technical effect is that fire-fighting water can effectively provide water sources to achieve fire extinguishing. Attached Figure Description

[0029] Figure 1 This utility model describes the usage status of a fire prevention device for lithium battery electric vehicles in an underground garage. Figure 1 ;

[0030] Figure 2 This utility model describes the usage status of a fire prevention device for lithium battery electric vehicles in an underground garage. Figure 2 ;

[0031] Figure 3 This is a schematic diagram of the installation of a fire prevention device for lithium battery electric vehicles in an underground garage according to the present invention;

[0032] Figure 4 This is a cross-sectional view of a folded film bag for a fireproof device for lithium battery electric vehicles in an underground garage, according to this utility model.

[0033] Figure 5 This is a control diagram of a fire prevention device for lithium battery electric vehicles in an underground garage, according to this utility model.

[0034] 1. Storage tank, 2. Output pipe, 3. Material pump, 4. Spray pipe assembly, 5. Folded membrane bag, 6. Spraying table, 7. Control console, 8. Smoke temperature sensor, 9. Discharge pipe, 10. Support plate, 11. Fire protection pipeline, 12. Valve. Detailed Implementation

[0035] 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.

[0036] See appendix to this utility model Figures 1 to 5 According to an embodiment of the present invention, a fire prevention device for lithium battery electric vehicles in an underground parking garage includes:

[0037] Storage tank 1 contains fire extinguishing materials. An output pipe 2 is connected to the outer wall of storage tank 1, and a material pump 3 is connected to the output pipe 2.

[0038] Spray pipe assembly 4 is connected to the discharge end of material pump 3. Spray pipe assembly 4 is arranged above the parking space. Spray platform 6 is connected to the end of spray pipe assembly 4. Spray head and smoke temperature sensor 8 are connected to the spray platform.

[0039] Folded membrane bag 5 is ring-shaped and is arranged on the outer periphery of the vehicle. One end of the folded membrane bag 5 is connected to a feed pipe, which is connected to the discharge end of the material pump 3. When the folded membrane bag 5 is in the external feeding state, it is supported and forms an isolation barrier. The fire extinguishing material sprayed by the sprinkler head is temporarily stored in the isolation barrier and submerges the ignition point.

[0040] The control console 7 is fixed on one side of the storage tank 1 and is electrically connected to the material pump 3 and the smoke temperature sensor 8 respectively.

[0041] In other embodiments, the inner ring of the folded film bag 5 is provided with a discharge pipe 9, the discharge pipe 9 has multiple discharge holes, the discharge pipe 9 has an adapter for connecting to an external material pump, the folded film bag 5 is a sealed pressure-bearing film bag, and the unfolded height of the folded film bag 5 is 50cm to 80cm.

[0042] In conventional new energy vehicles, the battery pack is located under the driver's seat. In practice, it is only necessary to ensure that the unfolded height of the folded film bag is higher than the height of the battery pack.

[0043] In some other embodiments, a support plate 10 is provided around the top of the folded film bag 5. The support plate has at least two functions: one is to support the folded film bag and prevent deformation of the top opening of the folded film bag; the other is to cover the annular groove so as not to affect the entry and exit of vehicles when not in use.

[0044] In some other embodiments, the discharge end of the material pump 3 is connected to a spray branch pipe and a membrane bag branch pipe. The spray branch pipe is connected to the spray pipe assembly 4, and the membrane bag branch pipe is connected to the folded membrane bag 5. A pressure regulating valve is connected to the membrane bag branch pipe to prevent the folded membrane bag from rupturing due to overpressure.

[0045] In some other embodiments, the storage tank 1 is connected to the fire protection pipeline 11 of the underground garage, and a valve 12 is installed on the connecting pipe between the storage tank 1 and the fire protection pipeline. The valve 12 is electrically connected to the control console 7. In specific implementations, the valve can be electrically controlled or manually controlled.

[0046] In other embodiments, the extinguishing material is a water-based extinguishing agent, but it can also be other extinguishing agents.

[0047] This utility model discloses a fire prevention method for lithium battery electric vehicles in underground garages, which uses the aforementioned fire prevention device and includes the following steps:

[0048] Step 1: Create a groove near the parking space. Create a ring groove near the parking space line of the underground parking space. The groove depth should be sufficient to meet the embedding requirements of the folded film bag.

[0049] Step 2: Assembly and adjustment of the equipment. Fix the folded film bag in the annular groove. The top support plate of the folded film bag covers the opening of the annular groove. Place the storage tank in a suitable position and connect it to the pipeline of the spray pipe assembly and the folded film bag. The spray table needs to be located above the parked vehicle.

[0050] Step 3: Debugging. Use the material pump to fill the extinguishing material into the folded material bag. The folded material bag unfolds and extends out of the annular groove to form an isolation barrier. The isolation barrier is set up around the outer perimeter of the parked vehicle. Turning on the material pump causes the sprinkler head to spray out the extinguishing material. The extinguishing material gradually accumulates inside the isolation barrier and submerges the fire point, completing the fire extinguishing.

[0051] In step two, the storage tank is connected to the fire-fighting pipeline and supplies fire-fighting water to the sprinkler heads.

[0052] Upon receiving an alarm signal, the control console activates the feed pump, rapidly filling the folded membrane bag with water-based extinguishing agent, unfolding it into an isolation barrier. Simultaneously, sprinklers spray the extinguishing material downwards, quickly extinguishing the fire. If the fire cannot be effectively extinguished, the sprinklers continue spraying. It's important to note that the extinguishing material quickly accumulates inside the isolation barrier until it submerges the fire. Once no alarm signal is detected, the system automatically shuts off. This product effectively prevents the spread of fire and also temporarily acts as a container for effective fire suppression.

[0053] The apparatus and methods disclosed in the embodiments are described simply because they correspond to the methods disclosed in the embodiments. For relevant details, please refer to the method section.

[0054] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fire prevention device for lithium battery electric vehicles in an underground parking garage, characterized in that, include: A storage tank (1) is filled with fire extinguishing materials. An output pipe (2) is connected to the outer wall of the storage tank (1), and a material pump (3) is connected to the output pipe (2). Spray pipe assembly (4), the spray pipe assembly (4) is connected to the discharge end of the material pump (3), the spray pipe assembly (4) is arranged above the parking space, the end of the spray pipe assembly (4) is connected to a spray table (6), and a spray head and a smoke temperature sensor (8) are connected to the spray table. Folded film bag (5), the folded film bag (5) is ring-shaped, the folded film bag (5) is arranged on the outer periphery of the vehicle, one end of the folded film bag (5) is connected to a feed pipe, the feed pipe is connected and communicated with the discharge end of the material pump (3), the folded film bag (5) is supported and forms an isolation barrier under external material supply, the fire extinguishing material sprayed by the sprinkler head is temporarily stored in the isolation barrier and submerges the fire point; The control console (7) is fixed to one side of the storage tank (1) and is electrically connected to the material pump (3) and the smoke temperature sensor (8).

2. The fire prevention device for lithium battery electric vehicles in an underground garage according to claim 1, characterized in that, The folded film bag (5) has an internal ring with a discharge pipe (9), and the discharge pipe (9) has multiple discharge holes. The discharge pipe (9) has an adapter for connecting to an external material pump. The folded film bag (5) is a sealed pressure-bearing film bag, and the unfolded height of the folded film bag (5) is 50cm to 80cm.

3. A fire prevention device for lithium battery electric vehicles in an underground garage according to claim 2, characterized in that, The top of the folded film bag (5) is provided with a support plate (10).

4. A fire prevention device for lithium battery electric vehicles in an underground garage according to claim 1, characterized in that, The discharge end of the material pump (3) is connected to a spray branch pipe and a membrane bag branch pipe. The spray branch pipe is connected to the spray pipe group (4), and the membrane bag branch pipe is connected to the folded membrane bag (5). A pressure regulating valve is connected to the membrane bag branch pipe.

5. A fire prevention device for lithium battery electric vehicles in an underground garage according to claim 1, characterized in that, The storage tank (1) is connected to the fire-fighting pipeline (11) of the underground garage. A valve (12) is installed on the connecting pipe between the storage tank (1) and the fire-fighting pipeline. The valve (12) is electrically connected to the control console (7).

6. A fire prevention device for lithium battery electric vehicles in an underground garage according to claim 1, characterized in that, The extinguishing material is a water-based extinguishing agent.

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