Energy storage fire alarm system and method for pressure release valve in electric energy storage system

The invention relates to the technical field of safety detection of electric energy storage systems, and discloses an energy storage fire alarm system and an alarm method for a pressure release valve in an electric energy storage system. The pressure release valve detection device is connected with circuits at the two ends of the pressure release valve to detect the opening and closing state of the pressure release opening. The signal output device is positioned between the pressure release valve detection device and the negative electrode of the power supply so as to output a switching value signal according to the opening and closing condition of the pressure release port; the pressure relief opening opens the signal output device to output a high level; the pressure relief opening closing signal output device outputs a low level; the control system is connected with the signal output device and is used for increasing the detection frequency of the battery pack to judge the temperature of the battery pack w