Battery prefabricated cabin fire-fighting strategy of double-layer-arrangement lithium iron phosphate energy storage power station

Abstract

The invention belongs to the field of battery prefabricated cabin fire fighting, and particularly relates to a battery prefabricated cabin fire-fighting strategy of a double-layer-arrangement lithiumiron phosphate energy storage power station. The battery prefabricated cabin fire-fighting strategy of the double-layer-arrangement lithium iron phosphate energy storage power station involves a watercurtain cooling system, wherein the water curtain cooling system is used for cooling and extinguishing fire on the outer surface of a battery prefabricated cabin, the water curtain cooling system comprises a cooling pipe network arranged along the periphery of the top of the battery prefabricated cabin and a plurality of large resistance distribution pipes parallel to the short side direction ofthe top of the battery prefabricated cabin, the plurality of large resistance distribution pipes are uniformly distributed at the top of the battery prefabricated cabin, and the plurality of large resistance distribution pipes communicate with the cooling pipe network; a plurality of sprinkler heads are uniformly distributed on the cooling pipe network, and a plurality of water distribution pipe nozzles are arranged on each large resistance distribution pipe. According to the fire-fighting strategy, effective and automatic externally watering can be carried out, so that fire extinguishing canbe carried out on the battery prefabricated cabin, and the safety of fire-fighting personnel is guaranteed.

Description

technical field [0001] The invention belongs to the field of fire-fighting of battery prefabricated cabins, and in particular relates to a fire-fighting strategy for battery prefabricated cabins arranged in double layers in a lithium iron phosphate energy storage power station. Background technique [0002] At present, the battery used in the lithium battery energy storage cabin is a lithium iron phosphate battery. When the BMS management of the battery management system fails or a single battery in the battery module is overcharged, some of the single batteries fail to be overcharged, and the battery If the body shell is deformed, the entire battery module will fail in severe cases. When the failure occurs, combustion will occur in the energy storage cabin, and an explosion may occur in severe cases. [0003] The existing cooling protection design ideas outside the energy storage cabin: (1) use the external fire emergency rescue team to implement water spray cooling from th...

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Problems solved by technology

[0004] Technical problems and shortcomings in the existing technical solutions: If the cooling system of the fire hydrant outside the energy storage cabin is used, the water sprinkling is uneven, and the water consumption is large, the duration is long, and a lot of manpower and material resources are consumed

For example, if the solution of pressurized watering inside and outside the energy storage cabin is adopted, the hatch door needs to be opened. When the hatch door is opened, the oxygen concentration in the energy storage cabin will recover instantaneously, resulting in deflagration, resulting in personal injury.

The above schemes are difficult to implement in consideration of the personal safety of rescuers in the project

[0005] Especially in order to solve the problem that the battery energy storage cabin occupies too much area and the land utilization efficiency is not high in traditional projects, the traditional 40-foot energy storage cabin is split into two 20-foot energy storage cabins, and the The two energy storage compartments are superimposed

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