Fire extinguishing device capable of spraying for multiple times and continuously cooling and control method

Abstract

The fire extinguishing device comprises a main conveying pipeline and a main controller, the main conveying pipeline is externally connected with a high-pressure fire extinguishing agent supply source, the tail end of the main conveying pipeline is connected with a plurality of groups of spraying pipes, each group of spraying pipes is provided with a plurality of nozzles, and each group of spraying pipes is provided with a valve. And the signal output end of the main controller is connected with the valve controller and the pressure reducing valve controller. The battery module has the beneficial effects that the after-combustion risk is extremely low, and heat radiation to surrounding batteries is reduced by absorbing heat of the thermal runaway battery, so that heat spreading in the battery module is prevented, and explosion is prevented.

Description

technical field

[0001] The invention relates to a fire-extinguishing device and a control method for continuous cooling by multiple injections. Background technique

[0002] In recent years, electrochemical energy storage represented by lithium-ion batteries has developed rapidly due to its advantages such as high energy storage density and power density, high efficiency, rapid technological progress, and great development potential. A number of lithium-ion battery energy storage power stations have been established at home and abroad. The high energy density of lithium-ion batteries also leads to potential fire hazards. Once thermal runaway occurs, it is easy to cause thermal diffusion, and the diffusion speed is very fast. In the prior art, in order to extinguish the fire caused by the lithium ion battery in time, one solution is to spray a large dose of cooling extinguishing agent at one time to suppress and extinguish the fire. The pressure of the battery box will incr...

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