Early warning and fire control system for energy storage power station

Abstract

The invention discloses an early warning and fire control system for an energy storage power station. A battery cabinet and an electric cabinet are arranged in the energy storage power station; a smallest protection unit is arranged in the battery cabinet and a battery group is internally arranged in the battery cabinet; electric equipment is mounted in the electric cabinet; the early warning and fire control system comprises a safety early warning system and a fire control system; the fire control system is arranged in the smallest protection unit. The fire control system comprises a probe, a fire extinguishing device, a solenoid valve starting device, a water inlet pipeline and a water outlet pipeline; the probe is arranged on the top of the smallest protection unit and is connected with the fire extinguishing device; the solenoid valve starting device is arranged on the top of the smallest protection unit and is electrically connected with a solenoid valve mounted on the water inlet pipeline; the solenoid valve starting device starts, the water inlet pipeline drains the water to the smallest protection unit; the water outlet pipe is arranged at the bottom of the smallest protection unit and the battery cabinet, and water is drained after fire is extinguished; an early warning system is arranged in the electric cabinet, and the early warning system comprises a data concentrator and a BMS host which are mutually connected; the data concentrator is connected with the probe and the solenoid valve starting device; and the BMS host is connected with the data concentrator.

Description

technical field [0001] The invention relates to the technical field of energy storage power stations, in particular to an early warning and fire protection system for energy storage power stations. Background technique [0002] As a new energy battery, lithium-ion batteries are not only more environmentally friendly but also have superior performance, and are widely used in energy storage power stations. However, during the storage process, lithium-ion batteries may experience thermal runaway due to the accumulation of heat generated by their own chemical reactions or the influence of external heat sources, which seriously affects the safety performance of energy storage power stations. [0003] At present, the early warning and fire protection of the energy storage power station are mainly realized through the following methods: multiple different types of fire detectors (temperature-sensing, smoke-sensing or smoke-temperature-integrated) are installed on the top of the ene...

AI Technical Summary

Problems solved by technology

[0004] In the existing technology, the overall monitoring of the energy storage cabinet is not accurate enough. When the thermal runaway of a single battery occurs, it may not be detected or the detection may be slow. When a fire is detected, the entire energy storage station space The fire extinguishing agent cannot be used to extinguish the fire in the battery cabinet, and the fire extinguishing effect on the battery is not obvious, so it cannot quickly, effectively and safely extinguish the fire source

In addition, because battery thermal runaway is a chain reaction, battery fires are easy to re-ignite. Traditional fire extinguishing methods can only temporarily suppress the spread of battery thermal runaway due to the limited dosage of fire extinguishing agents, and suppress the fire for a short time. Once the battery re-ignites, it will cause great danger and property. loss

And the fire extinguishing agent is stored for a long time and is prone to failure, so it needs to be replaced regularly

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