Abstract: The low boiling point and volatile characteristics of ethanol make it easy to boil and mutate when burning, which will greatly affect the extinguishing performance of alcohol foam extinguishing agent. This paper designs and constructs a temperature control operation platform and a combustion test platform to test the spreading characteristics of alcohol resistant foam extinguishing agent. From the fire extinguishing mechanism, this paper explores the influence of the boiling state change caused by temperature rise on the spreading asphyxiation effect of alcohol resistant foam extinguishing agent, and then explores the influence of ethanol boiling state on the extinguishing performance of alcohol resistant foam extinguishing agent, providing relevant data and theoretical support for the fire rescue team to deal with alcohol fires.

Key words: ethanol fire, boiling, alcohol-resistant foam, spreading behaviors