Safety monitoring emergency system and method for lithium battery energy storage cabin

Abstract

The invention provides a lithium battery energy storage cabin safety monitoring emergency system and a lithium battery energy storage cabin safety monitoring emergency method. The lithium battery energy storage cabin safety monitoring emergency system comprises a detection module, a fire extinguishing anti-reburning explosion suppression module, an exhaust explosion-proof module and a control module, the detection module is installed in the battery energy storage cabin and used for detecting fire and combustible gas in the battery energy storage cabin and sending out a fire signal and a combustible gas signal. The fire extinguishing, anti-reburning and explosion suppression module is used for anti-reburning fire extinguishing and explosion suppression of the battery energy storage cabin; the exhaust explosion-proof module is used for emptying combustible gas in the battery energy storage cabin; the control module is used for receiving the combustible gas signal and the fire generation signal sent by the detection module and judging; the opening or closing of the exhaust explosion-proof module is controlled according to the combustible gas signal; and the fire extinguishing anti-after-combustion explosion suppression module is controlled to be opened or closed according to the fire occurrence signal. According to the method, when different types of lithium batteries are subjected to thermal runaway, the thermal runaway of the batteries can be accurately judged, and the problems of missed judgment and delayed judgment are avoided.

Description

technical field [0001] The invention belongs to the technical field of power systems, and in particular relates to a safety monitoring emergency system and method for a lithium battery energy storage cabin. Background technique [0002] Lithium-ion batteries for energy storage are prone to thermal runaway under faults such as short circuit, overcharge, thermal and mechanical abuse, releasing a large amount of heat and dangerous gas, causing fire and explosion. Explosion accidents of lithium battery energy storage systems have occurred frequently in recent years. The fire and explosion safety of lithium-ion batteries is an urgent technical problem in the field of energy storage. [0003] Different from conventional fires, the thermal runaway of lithium batteries continues spontaneously and develops rapidly. At the same time, a large amount of flammable and explosive gases are generated, which are extremely easy to explode and burn, and are extremely easy to re-ignite after t...

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to propose a safety monitoring emergency system and method for a lithium battery energy storage cabin, aiming to solve the technical problem that the safety monitoring system in the prior art is prone to misjudgment when detecting combustible gases

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