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Fire extinguishing system and method for energy storage power station or battery container

A technology of energy storage power station and fire extinguishing system, which is applied in the field of fire extinguishing system, and can solve the problems of lithium-ion battery smoke, reburning battery, spreading, etc.

Inactive Publication Date: 2021-04-30
CHINA ELECTRIC POWER RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The purpose of the present invention is to solve the problems of smoke generation, re-ignition and spread to adjacent batteries in the thermal runaway fire of lithium-ion batteries in the prior art, and to provide a fire extinguishing system and method for energy storage power stations or battery containers

Method used

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  • Fire extinguishing system and method for energy storage power station or battery container
  • Fire extinguishing system and method for energy storage power station or battery container
  • Fire extinguishing system and method for energy storage power station or battery container

Examples

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Embodiment 1

[0097] see figure 1 As shown, this embodiment provides a fire extinguishing method for an energy storage power station or a battery container, which is used for fire protection of battery units in an energy storage power station or a battery container. The battery units include a number of sealed battery boxes; There are a number of batteries for energy storage; the following steps are included:

[0098] Step S01, collect temperature information and smoke information in real time; the temperature information includes the temperature information in the battery and / or the sealed battery box, the smoke information includes the smoke information in the sealed battery box, and the smoke information in the battery room or battery container of the energy storage power station. smoke information;

[0099] Step S02, based on the temperature information and smoke information collected in real time, and the preset fire extinguishing conditions, the fire is extinguished according to the ...

Embodiment 2

[0119] Such as figure 2 As shown, this embodiment provides a fire extinguishing system for energy storage power stations or battery containers, which is used for fire protection of battery units in energy storage power stations or battery containers, including: several battery units, detection units, control units, and smoke processing units and fire extinguishing unit.

[0120] The plurality of battery units are installed in the battery room or battery container of the energy storage power station. The battery unit includes an airtight battery box and a lithium battery for energy storage installed in the airtight battery box. A plurality of lithium batteries are installed in the airtight battery box.

[0121] In the present invention, the closed battery box adopts a closed structure, which is used to contain the liquid re-ignition inhibitor and prevent the combustible gas generated in the process of thermal runaway from contacting with oxygen. Considering that a large amo...

Embodiment 3

[0139] About the fire extinguishing unit

[0140] Such as Figure 3 to Figure 5 As shown, in an embodiment of the present invention, the fire extinguishing unit 1 includes a first fire extinguishing assembly for extinguishing the battery box 2, and a second fire extinguishing assembly for extinguishing the battery room or battery container of the energy storage power station;

[0141] The first fire extinguishing assembly includes a first pipeline and a number of first nozzles arranged on the first pipeline and controlled by solenoid valves, and the first nozzles can spray gaseous fire extinguishing agent or liquid re-ignition inhibitor to the corresponding battery Inside the box 2; the entrance of the first pipeline is respectively connected with the gas fire extinguishing agent supply device 11 and the liquid reburning inhibitor supply device 12; the first nozzle is provided with a check valve, which can supply gas fire extinguishing agent or liquid reburning The inhibitor ...

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Abstract

The invention discloses a fire extinguishing system and method for an energy storage power station or a battery container, and aims to improve a fire extinguishing system for a lithium ion battery fire in the energy storage power station and the container based on the thermal runaway combustion characteristic of a lithium ion battery and aiming at the condition that after open fire of the lithium ion battery is extinguished, re-combustion and thermal runaway spreading are generated, the detection of the thermal runaway and fire of the battery is optimized, and a liquid reburning inhibitor is introduced. Fire extinguishing can be conducted by considering the whole system and the fire of an ignition point, meanwhile, the possibility of false alarm can be effectively avoided, and high accuracy is achieved. Secondly, the liquid reburning inhibitor is introduced while a gas extinguishing agent is used in the fire extinguishing system, the gas extinguishing agent can effectively extinguish open fire generated by thermal runaway of the battery, the liquid reburning inhibitor can effectively inhibit reburning and smoke generation of the battery and thermal runaway spreading, and the safety coefficient is higher.

Description

technical field [0001] The invention belongs to the technical field of lithium ion batteries, in particular to a fire extinguishing system and method for energy storage power stations or battery containers. Background technique [0002] At present, commonly used electrochemical energy storage systems, such as lithium-ion battery energy storage systems, have potential safety hazards and cannot essentially guarantee the safety of use. A hot issue. [0003] For the existing fire protection systems for energy storage power stations or battery containers, most of them use heptafluoropropane gas fire extinguishing agent. When the temperature or smoke detectors in the system detect abnormal data, heptafluoropropane will be sprayed in the entire battery room or container , Through the function of heptafluoropropane gas to isolate oxygen and chemically inhibit, the fire can be extinguished. However, this method does not target the fire point or spray the battery module with thermal...

Claims

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Application Information

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IPC IPC(8): A62C3/16A62C37/00
CPCA62C3/16A62C37/00
Inventor 杨凯赖铱麟刘皓张明杰刘超群渠展展高飞范茂松
Owner CHINA ELECTRIC POWER RES INST
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