Fire prevention and control structure of electrochemical energy storage station

Abstract

The utility model relates to the technical field of fire prevention and control of electrochemical energy storage stations, and discloses a fire prevention and control structure of an electrochemical energy storage station, which comprises an energy storage cabin, a fire alarm control host, a lithium battery energy storage system automatic fire extinguishing device, a special fire detector and an electrochemical energy storage cabin fire suppression device are mounted in the energy storage cabin; a fire extinguishing agent spraying pipe network is installed on the upper portion of the inner wall of the energy storage cabin, and a plurality of sets of perfluorohexanone nozzles are installed on the lower side of the fire extinguishing agent spraying pipe network and located above the PACK battery box. Compared with the prior art, the utility model has the advantages that: through early warning, the fire extinguishing agent directly acts in the battery box to extinguish initial sparks in time and control a fire disaster in the bud, which is a choice for minimizing loss and minimizing influence; through the three-level scheme, fire detection and extinguishment can be effectively carried out on the battery box and the energy storage cabin, and the fire between the cabins can be effectively isolated.

Description

Technical Field

[0001] The utility model relates to the technical field of fire prevention and control of electrochemical energy storage stations, and specifically refers to a fire prevention and control structure of an electrochemical energy storage station. Background Art

[0002] With the official formulation of the carbon peak and carbon neutrality goals, the development of the electrochemical energy storage industry is moving towards a new outlet. In recent years, my country's lithium battery energy storage industry has developed rapidly. The global market size has gradually expanded, but due to various factors, fire accidents in energy storage power stations have occurred frequently, and fire safety needs to be continuously improved.

[0003] However, lithium batteries themselves have serious safety risks that cannot be ignored. With the improvement of battery performance indicators such as energy density, the safety issues of lithium batteries have become more and more prominent. At present, many safety accidents related to lithium battery energy storage have been reported around the world, and the safety of lithium batteries has become an issue that needs to be urgently addressed. Utility Model Content

[0004] 1. Technical Problems Solved

[0005] The technical problems to be solved by the utility model are the frequent fire accidents in energy storage power stations and the safety problems of lithium batteries.

[0006] 2. Technical Solution

[0007] In order to solve the above technical problems, the technical solution provided by the utility model is: a fire prevention and control structure of an electrochemical energy storage station, including an energy storage cabin, wherein a plurality of PACK battery boxes are installed inside the energy storage cabin, and the plurality of PACK battery boxes are stacked, and a fire alarm control host, a lithium battery energy storage system automatic fire extinguishing device, a special fire detector and an electrochemical energy storage cabin fire suppression device are installed inside the energy storage cabin;

[0008] A fire extinguishing agent spraying pipe network is installed on the upper part of the inner wall of the energy storage cabin, and multiple groups of perfluorohexanone nozzles are installed on the lower side of the fire extinguishing agent spraying pipe network and above the PACK battery box.

[0009] As an improvement, an emergency stop switch is installed inside the energy storage cabin.

[0010] As an improvement, a smoke exhaust fan is installed inside the energy storage cabin.

[0011] As an improvement, a pressure relief device is installed through the side wall of the energy storage cabin.

[0012] As an improvement, a fire extinguishing agent delivery main pipe is installed on one side of the fire extinguishing agent spraying pipe network, and a control valve is provided on the fire extinguishing agent delivery main pipe.

[0013] As an improvement, the side wall of the energy storage compartment is configured as a firewall.

[0014] 3. Beneficial Effects

[0015] The advantages of the utility model compared with the prior art are:

[0016] 1. Fire prevention and control of battery modules is the focus of fire prevention and control in electrochemical energy storage stations. Through early warning, the fire extinguishing agent directly acts on the battery box to extinguish the initial sparks in time and control the fire in its infancy, which is the choice to minimize losses and impacts;

[0017] 2. The three-level solution can effectively detect and extinguish fires in battery boxes and energy storage compartments, as well as effectively isolate fires between compartments;

[0018] 3. Use fire extinguishing agent to directly enter the battery box, which can quickly suppress and extinguish the initial fire and achieve long-term cooling and immersion;

[0019] 4. The use of composite special fire detectors can detect and analyze environmental factors that cause fires, including hydrogen, carbon monoxide, VOC and other gases, and can effectively and accurately analyze environmental changes in the early stages of a fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the cross-section structure of a fire prevention and control structure of an electrochemical energy storage station of the utility model.

[0021] Figure 2 It is a schematic diagram of the lower side cross-section structure of a fire prevention and control structure of an electrochemical energy storage station of the utility model.

[0022] As shown in the figure: 1. Energy storage cabin; 2. PACK battery box; 3. Fire alarm control host; 4. Automatic fire extinguishing device of lithium battery energy storage system; 5. Emergency stop switch; 6. Fire extinguishing agent spraying pipe network; 7. Perfluorohexanone nozzle; 8. Smoke exhaust fan; 9. Special fire detector; 10. Electrochemical energy storage cabin fire suppression device; 11. Pressure relief device; 12. Fire extinguishing agent delivery main pipe. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] Embodiment 1

[0025] As attached Figure 1 and attached Figure 2As shown, a fire prevention and control structure of an electrochemical energy storage station includes an energy storage cabin 1, wherein a plurality of PACK battery boxes 2 are installed inside the energy storage cabin 1, wherein the plurality of PACK battery boxes 2 are stacked, and a fire alarm control host 3, a lithium battery energy storage system automatic fire extinguishing device 4, a special fire detector 9 and an electrochemical energy storage cabin fire suppression device 10 are installed inside the energy storage cabin 1;

[0026] A fire extinguishing agent spraying pipe network 6 is installed on the upper inner wall of the energy storage cabin 1 , and multiple groups of perfluorohexanone nozzles 7 are installed on the lower side of the fire extinguishing agent spraying pipe network 6 and above the PACK battery box 2 .

[0027] Through the above structure, the fire extinguishing agent is delivered to the multiple groups of perfluorohexanone nozzles 7 through the fire extinguishing agent spraying pipe network 6, and the fire extinguishing agent is sprayed through the multiple groups of perfluorohexanone nozzles 7. The specific structure is as follows:

[0028] Combined with Figure 1 and attached Figure 2 As shown, an emergency stop switch 5 is installed inside the energy storage cabin 1, a smoke exhaust fan 8 is installed inside the energy storage cabin 1, a pressure relief device 11 is installed through the side wall of the energy storage cabin 1, a fire extinguishing agent delivery main pipe 12 is installed on one side of the fire extinguishing agent spraying pipeline 6, a control valve is provided on the fire extinguishing agent delivery main pipe 12, and the side wall of the energy storage cabin 1 is configured as a firewall.

[0029] Through the above structure, the fire alarm control host 3 can be controlled by the emergency stop switch 5, the smoke can be discharged from the energy storage cabin 1 through the smoke exhaust fan 8 after the fire is extinguished, the gas and heat in the energy storage cabin 1 can be discharged through the pressure relief device 11 to reduce the internal pressure of the energy storage cabin 1, and the fire extinguishing agent supply device can be connected to the fire extinguishing agent delivery main pipe 12. By opening the control valve, the fire extinguishing agent can be delivered to the fire extinguishing agent spraying pipeline 6.

[0030] The specific usage is as follows:

[0031] Level 1 solution: Fire prevention and control inside the PACK battery box (preventing fire before it happens).

[0032] PACK battery box 2 fire prevention and control is the main fire prevention and control target of energy storage power stations. According to the characteristics of lithium battery energy storage fire, the battery cluster is used as the protection unit, and the box-type centralized detection + precise automatic suppression and fire extinguishing are implemented:

[0033] A dedicated fire detector 9 + fire alarm control host 3 + electrochemical energy storage compartment fire suppression device 10 is used to achieve automatic fire detection and prevention. The fire extinguishing agent uses perfluorohexanone as the fire extinguishing (suppression) medium, and uses a fire extinguishing agent spraying pipe network and multiple groups of perfluorohexanone nozzles 7 to centrally detect the PACK battery box 2. The perfluorohexanone fire extinguishing agent is accurately sprayed into the pack, which can effectively extinguish the fire, reduce the temperature and suppress the re-ignition for a long time, realizing box-type centralized detection + precise automatic suppression and extinguishing.

[0034] Secondary plan: energy storage cabin fire prevention and control (prevention and control of fire that has already started).

[0035] The fire prevention and control function of the battery compartment outside the battery box is mainly aimed at electrical fires caused by short circuits of auxiliary electrical appliances, circuits, and controllers, as well as auxiliary prevention and control due to the extension of battery box fires. The energy storage compartment is used as the protection unit, and the compartment-based centralized detection + centralized automatic fire extinguishing is adopted:

[0036] A dedicated fire detector 9 + fire alarm control host 3 + lithium battery energy storage system automatic fire extinguishing device 4 is used to realize automatic fire detection and fire extinguishing prevention and control. The fire extinguishing agent uses perfluorohexanone as the fire extinguishing medium, and uses a fire extinguishing agent spraying pipe network and multiple groups of perfluorohexanone nozzles 7 to evenly release the fire extinguishing agent, which can effectively extinguish the fire, reduce the temperature and suppress the re-ignition for up to 24 hours, realizing full-cabin flooding fire extinguishing, and is suitable for the protection of the entire cabin.

[0037] Level 3 plan: external fire prevention and control in energy storage cabins (preventing and controlling fire spread).

[0038] Including firewall design, battery compartment spacing, large-scale fire-fighting facilities, fire rescue road traffic, etc.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0041] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A fire prevention and control structure of an electrochemical energy storage station, comprising an energy storage cabin (1), wherein a plurality of PACK battery boxes (2) are installed inside the energy storage cabin (1), and the plurality of PACK battery boxes (2) are stacked. Features: The energy storage cabin (1) is internally installed with a fire alarm control host (3), a lithium battery energy storage system automatic fire extinguishing device (4), a special fire detector (9) and an electrochemical energy storage cabin fire suppression device (10); A fire extinguishing agent spraying pipe network (6) is installed on the upper part of the inner wall of the energy storage cabin (1), and a plurality of groups of perfluorohexanone spray heads (7) are installed on the lower side of the fire extinguishing agent spraying pipe network (6) and above the PACK battery box (2).

2. A fire prevention and control structure for an electrochemical energy storage station according to claim 1, Features: An emergency stop switch (5) is installed inside the energy storage cabin (1).

3. The fire prevention and control structure of an electrochemical energy storage station according to claim 1, Features: A smoke exhaust fan (8) is installed inside the energy storage cabin (1).

4. The fire prevention and control structure of an electrochemical energy storage station according to claim 1, Features: A pressure relief device (11) is installed through the side wall of the energy storage cabin (1).

5. The fire prevention and control structure of an electrochemical energy storage station according to claim 1, Features: A fire extinguishing agent delivery main pipe (12) is installed on one side of the fire extinguishing agent spraying pipe network (6), and a control valve is provided on the fire extinguishing agent delivery main pipe (12).

6. The fire prevention and control structure of an electrochemical energy storage station according to claim 1, Features: The side wall of the energy storage cabin (1) is configured as a fire wall.

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