Abstract: To meet the demand of rapid preliminary unmanned detection in fire and explosion accidents caused by liquid hazardous chemical leakage, the experimental collection of Raman spectra of 37 kinds of key supervised liquid hazardous chemicals in China was made by using the OEM core of handheld laser Raman spectrometer, and after data processing, a Raman spectral database containing key supervised liquid hazardous chemicals in China was established, and on this basis, a rolling liquid hazardous chemical detection ball mounted by a fire fighting robot was independently developed. It can realize the unmanned automatic sampling, identification and data transmission of leaking liquid hazardous chemicals, which can provide technical and equipment support for the perception and diagnosis of liquid hazardous chemicals leakage and fire or explosion accident situation, and ensure the personal safety of firefighters.

Key words: liquid hazardous chemical, detection, Raman spectroscopy, detection ball, unmanned sampling