Battery storage fire-fighting cabin and new energy power battery energy storage system

Abstract

The utility model discloses a battery storage fire-fighting cabin and a new energy power battery energy storage system, the fire-fighting cabin comprises a battery storage rack, a plurality of battery trays and a fire-fighting water injection system, the storage area of the battery storage rack is divided into a plurality of layers of spaces, each layer of space is respectively provided with a battery tray for storing an automobile power battery, and the battery trays are connected with the fire-fighting water injection system. The water storage height of the battery tray can enable the automobile power battery to be completely immersed; the fire-fighting water injection system comprises a fire-fighting main pipe and a plurality of fire-fighting branch pipes, the fire-fighting main pipe is arranged on one side of the battery storage rack, the plurality of fire-fighting branch pipes separated from the fire-fighting main pipe respectively correspond to each layer of battery trays, and each fire-fighting branch pipe is provided with an electromagnetic valve; and water injection cooling is carried out on the automobile power battery in the battery tray independently. When the battery is in thermal runaway, the fire-fighting cabin can accurately and quickly inject water into the battery in thermal runaway, cool and extinguish fire, so that the accident influence is reduced to the minimum.

Description

Technical Field

[0001] The utility model relates to the technical field of battery storage and fire protection in a battery energy storage system, and in particular to a battery storage fire protection cabin. The utility model also relates to a new energy power battery energy storage system provided with the battery storage fire protection cabin. Background Art

[0002] At a time when there is a significant difference between peak and valley levels in electricity utilization, battery energy storage systems can be used as an effective means to smooth out peak loads and fill valley levels for the power grid, thereby improving the stability and reliability of the grid. Therefore, battery energy storage has become an important way to supplement the functions of the power grid.

[0003] In a complete energy storage system solution, new energy vehicle power batteries are applied to the energy storage system and the power batteries are recycled. This can not only realize the residual value of retired vehicle batteries, but the reliability of automotive-grade batteries can also improve the safety of the energy storage system. However, fire safety during thermal runaway of power batteries also puts higher requirements on system design.

[0004] Currently, most new energy vehicle batteries use ternary lithium batteries, which increases the driving range of new energy electric vehicles, but also makes vehicle batteries more prone to thermal runaway accidents such as combustion, which is an unavoidable safety issue for the use of automotive batteries in the energy storage field.

[0005] Existing conventional energy storage systems are generally equipped with dry powder or gas fire extinguishing agents, but automotive batteries contain both reducing agents and oxidizing agents, so simply isolating the air cannot prevent the combustion of lithium batteries, so traditional fire extinguishing agents are not suitable for combustion scenarios of automotive power batteries. At present, the best way to deal with the combustion of automotive power batteries is water, and in addition to automotive power batteries, there are many high-voltage circuit components in the energy storage system. These components are not suitable for water fire fighting, so it is necessary to design and build a special storage structure specifically for water fire fighting of automotive power batteries. Utility Model Content

[0006] The utility model aims to provide a battery storage fire cabin. When a battery has thermal runaway, the battery storage fire cabin can accurately and quickly inject water into the battery to cool it down and extinguish the fire, thereby minimizing the impact of the accident.

[0007] The purpose of the utility model is to provide a new energy power battery energy storage system provided with the battery storage fire fighting cabin.

[0008] To achieve the above-mentioned purpose, the utility model provides a battery storage fire cabin, including a battery storage rack, a plurality of battery trays and a fire water injection system, wherein the storage area of ​​the battery storage rack is divided into multiple layers of space, and each layer of space is respectively provided with a battery tray for storing automotive power batteries; the fire water injection system includes a fire main pipe and a plurality of fire branch pipes, the fire main pipe is arranged on one side of the battery storage rack, and the plurality of fire branch pipes branched from the fire main pipe respectively correspond to the battery trays on each layer, and each of the fire branch pipes is respectively provided with a solenoid valve to individually inject water and cool down the automotive power batteries in the battery trays.

[0009] Optionally, the water outlet of each fire-fighting branch pipe is located above the side area of ​​the battery tray, and the opening is downward toward the inside of the tray so that the fire-fighting water can be directly injected into the battery tray.

[0010] Optionally, the battery storage rack is provided with a locking mechanism on each crossbeam supporting the battery tray to fix the battery tray placed thereon.

[0011] Optionally, the battery tray is provided with a diversion port on the other side relative to the main pipe, and the battery storage rack is provided with a water baffle corresponding to the diversion port.

[0012] Optionally, the guide port is in a U-shape with an opening facing upward, and its bottom surface is an inclined surface.

[0013] Optionally, a seat for raising the bottom height of each battery tray is provided at the bottom.

[0014] Optionally, a fire water drain outlet is provided on the side of the battery tray near the bottom and is equipped with a manual switch valve.

[0015] Optionally, high and low voltage harness mounting plates are provided on both sides of the vertical bars of the battery storage rack.

[0016] Optionally, a wiring harness connector is provided on the high and low voltage wiring harness mounting plate, and the high and low voltage wiring harness of the vehicle power battery is connected to the wiring harness of the control device through the wiring harness connector.

[0017] To achieve the above-mentioned other purpose, the present invention provides a new energy power battery energy storage system, comprising a battery storage fire compartment for storing new energy power batteries, wherein the battery storage fire compartment is any of the battery storage fire compartments described above.

[0018] The battery storage fire cabin provided by the utility model has a battery storage rack with a multi-layer structure, which can be increased or decreased according to the size of the space. The battery tray can hold the vehicle power batteries of mainstream models on the market. The water storage height of the battery tray can completely immerse the vehicle power batteries. The fire water can be injected into the battery tray through the fire water injection system on one side of the battery storage rack. Once a power battery is abnormally overheated or has an open flame, the control system will send an instruction to the solenoid valve after detecting the corresponding status signal. The solenoid valve on the fire branch pipe can realize independent water injection of a single tray according to the instruction, so as to realize accurate fire extinguishing. When the battery tray is filled with water, the fire pipe will still inject water intermittently to continuously cool the battery, and can accurately and quickly inject water to cool down the thermal runaway battery and extinguish the fire, so as to minimize the impact of the accident.

[0019] In a preferred solution, when the battery tray is filled with water, excess water can overflow through the diversion port, flow to an area on the ground where a drain outlet is provided, and enter a specific water storage space at the bottom of the cabin through the drain outlet to avoid environmental pollution; after the fire is completely extinguished, the water in the battery tray can be discharged to the bottom water storage space by manually opening the drain valve.

[0020] The new energy power battery energy storage system provided by the utility model is provided with the battery storage fire compartment. Since the battery storage fire compartment has the above-mentioned technical effects, the new energy power battery energy storage system provided with the battery storage fire compartment should also have the above-mentioned technical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of a battery storage fire cabin provided by an embodiment of the utility model;

[0022] Figure 2 for Figure 1 A partial enlarged view of

[0023] Figure 3 for Figure 1 The schematic diagram of the structure of the battery storage fire fighting cabin shown in another perspective;

[0024] Figure 4 A schematic diagram of the structure of the battery tray.

[0025] In the figure:

[0026] 1. Battery storage rack 11. Storage rack crossbeam 2. Fire main pipe 3. Fire branch pipe 4. Solenoid valve 5. Battery tray 51. Diversion port 52. Manual drain valve 53. Tray seat 6. Car power battery 7. Water baffle 8. Wire harness mounting plate 81. Wire harness connector 82. High and low voltage wire harness DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0028] In this article, the terms "upper, lower, inside, outside" and the like are established based on the positional relationships shown in the drawings. The corresponding positional relationships may also change depending on the drawings, and therefore cannot be understood as absolute limitations on the scope of protection; moreover, relational terms such as "first" and "second" and the like are merely used to distinguish one component from another with the same name, and do not necessarily require or imply any actual relationship or order between these components.

[0029] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 1 A schematic diagram of the structure of a battery storage fire cabin provided by an embodiment of the utility model; Figure 2 for Figure 1 A partial enlarged view of Figure 3 for Figure 1 A schematic diagram of the structure of the battery storage fire cabin shown in another perspective.

[0030] As shown in the figure, in a specific embodiment, the battery storage fire cabin provided by the utility model has a battery storage rack 1 and a plurality of battery trays 5. The battery storage rack 1 is a multi-layer frame structure, and each layer stores a battery tray 5. A locking mechanism is provided on the cross beam of the battery storage rack 1, and the battery tray 5 can be fixed on the battery storage rack 1. High and low voltage wire harness mounting plates 8 are provided on the vertical supports on both sides of the battery storage rack 1.

[0031] The battery tray 5 is generally in the shape of a rectangle with an opening facing upward, and a guide port 51 is provided on its side. The cross-section of the guide port 51 is in the shape of an eagle's beak that is inclined downward. A water retaining plate 7 is installed on the vertical support on one side of the battery storage rack 1. The height of the guide port 51 is slightly lower than the battery tray 5. Overflowing water can flow down along the guide port 51. In combination with the water retaining plate 7, the overflowing water can fall into the drainage port on the ground below the battery storage rack 1.

[0032] The fire main pipe 2 is erected on one side of the battery storage rack 1 and can be connected to the external fire water supply pipe from the bottom or the side. The fire main pipe 2 is provided with a fire branch pipe 3 according to the number and position of the battery trays 5. The fire branch pipe 3 extends inward into the battery storage rack 1 and is located between the upper and lower battery trays 5 and above the inner edge of the lower battery tray 5. The water outlet of the fire branch pipe 3 is bent downward, and the fire branch pipe 3 is just flush with the battery storage rack crossbeam 11 and the battery tray seat 53 in the height direction. In this way, it can be ensured that the battery tray 5 can be pushed into the battery storage rack 1 without any obstruction, or pulled out of the battery storage rack 1; each fire branch pipe 3 is provided with a solenoid valve 4, which opens and closes according to the received control system command to control the injection of fire water into the designated battery tray 5.

[0033] In the specific implementation, the battery storage rack 1 is fixed on the cabin body in the form of a steel beam structure, and two cross beams are arranged in the depth direction to support the battery tray 5. A locking mechanism is provided on the cross beam, which cooperates with the locking structure on the tray seat 53 to fix the battery tray 5 on the battery storage rack 1.

[0034] A wiring harness mounting plate 8 is installed on the vertical support of the battery storage rack 1 by welding or bolting. A wiring harness connector 81 can be fixed on the wiring harness mounting plate 8. The high and low voltage wiring harnesses 82 of the battery are connected to the wiring harnesses of the control device on the wiring harness connector 81, which facilitates the replacement and installation of the battery.

[0035] Please refer to Figure 4 , Figure 4 A schematic diagram of the structure of the battery tray.

[0036] As shown in the figure, a manual drain valve 52 is provided on the side of the battery tray 5 near the bottom, which can be opened and closed manually to drain the water in the tray; the tray seat 53 can raise the bottom height of the battery tray 5 for operation of equipment such as forklifts, while leaving space for the layout of the fire branch pipe 3.

[0037] In this embodiment, the tray seat 53 is implemented in the form of welded square steel, the guide port 51 is arranged on the side direction of the battery tray, the manual drain valve 52 is arranged at the bottom of the back side of the battery tray 5, and can also be arranged at the bottom of the battery tray 5. The height of the tray seat 53 meets the requirements of the installation of the manual drain valve 52 and will not affect the placement of the battery tray 5.

[0038] The above embodiments are only preferred solutions of the present invention and are not limited thereto. On this basis, targeted adjustments can be made according to actual needs to obtain different implementation methods. For example, the air guide 51 can be set on any side of the battery tray 5, or multiple sides can be set with air guides 51 at the same time, etc. Since there are many possible implementation methods, they will not be described one by one here.

[0039] After the battery storage fire cabin is put into use, the fire water can be injected into the battery tray 5 through the fire water injection system on one side of the battery storage rack. Once a certain car power battery 6 is abnormally overheated or has an open fire, the control system will send an instruction to the solenoid valve 4 after detecting the corresponding status signal. The solenoid valve 4 on the fire branch pipe 3 can realize the independent water injection of a single battery tray 5 according to the instruction, so as to achieve precise fire extinguishing. When the battery tray 5 is filled with water, the fire branch pipe 3 will still be intermittently injected to continuously cool down the car power battery 6. When the battery tray 5 is filled with water, the excess water can overflow through the diversion port 51 and flow to the area with a drain port on the ground, and enter the specific water storage space at the bottom of the cabin through the drain port to avoid environmental pollution; after the fire is completely extinguished, the water in the battery tray 5 can be discharged to the bottom water storage space by opening the manual drain valve 52.

[0040] The battery storage fire cabin and new energy power battery energy storage system provided by the utility model are introduced in detail above. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. Battery storage fire cabin, characterized by: The invention comprises a battery storage rack (1), a plurality of battery trays (5) and a fire water injection system. The storage area of ​​the battery storage rack (1) is divided into multiple layers of space. Each layer of space is used to place a battery tray (5) for storing a vehicle power battery (6). The water storage height of the battery tray (5) can completely immerse the vehicle power battery (6). The fire water injection system comprises a fire main pipe (2) and a plurality of fire branch pipes (3). The fire main pipe (2) is arranged on one side of the battery storage rack (1). The plurality of fire branch pipes (3) branched from the fire main pipe (2) correspond to each layer of the battery tray (5). Each fire branch pipe (3) is provided with a solenoid valve (4) to inject water and cool the vehicle power battery (6) in the battery tray (5) individually.

2. The battery storage fire cabin according to claim 1, characterized in that: The water outlet of each fire-fighting branch pipe (3) is located above the side area of ​​the battery tray (5), and the opening is downward toward the inside of the battery tray (5) so that fire-fighting water can be directly injected into the battery tray (5).

3. The battery storage fire cabin according to claim 1, characterized in that: The battery storage rack (1) is provided with a locking mechanism on each storage rack crossbeam (11) supporting the battery tray (5) to fix the battery tray (5) placed thereon.

4. The battery storage fire cabin according to claim 1, characterized in that: The battery tray (5) is provided with a flow guide port (51), and the battery storage rack (1) is provided with a water baffle (7) corresponding to the flow guide port (51).

5. The battery storage fire cabin according to claim 4, characterized in that: The guide port (51) is in a U-shape with its opening facing upward, and its bottom surface is an inclined surface.

6. The battery storage fire cabin according to claim 1, characterized in that: The bottom of each battery tray (5) is provided with a tray seat (53) for raising the height of the bottom thereof.

7. The battery storage fire cabin according to claim 1, characterized in that: A fire water drainage outlet is provided on the side of the battery tray (5) near the bottom and is equipped with a manual switch valve (52).

8. The battery storage fire cabin according to any one of claims 1 to 7, characterized in that: High and low voltage harness mounting plates (8) are arranged on both sides of the vertical rods of the battery storage rack (1).

9. The battery storage fire cabin according to claim 8, characterized in that: The high and low voltage wire harness mounting plate (8) is provided with a wire harness connector (81), and the high and low voltage wire harness (82) of the vehicle power battery and the wire harness of the control device are connected via the wire harness connector (81).

10. A new energy power battery energy storage system, comprising a battery storage fire cabin for storing new energy power batteries, characterized in that: The battery storage fire compartment is the battery storage fire compartment as described in any one of claims 1 to 9 above.

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