关键词: 环氧丙烷, 　低沸点易燃液体, 七氟丙烷泡沫灭火系统

Abstract: The heptafluoropropane air foam fire extinguish system is adopted to extinguish the fire caused by flammable liquid with boiling point below 45 degrees such as propylene oxide. Based on the fire extinguishing test on propylene oxide, ordinary air foam cannot completely extinguish such fire or even cannot control the fire caused by propylene oxide. The use of heptafluoropropane fire extinguishing agent instead of heptafluoropropane air foam fire extinguishing technology has good fire extinguishing performance for fire caused by flammable liquid propylene oxide with boiling point below 45 °C. The heptafluoropropane air foam fire extinguishing system can be easily applied in engineering. The heptafluoropropane air foam extinguishing system can be realized by adding the heptafluoropropane sup- ABSTRACTS PETROCHEMICAL SAFETY AND ENVIRONMENTAL PROTECTION TECHNOLOGY Bimonthly. 20 Feb. 2019 Vol. 35 No. 1 ·Ⅰ· ply system on the basis of the ordinary foam fire extinguishing system.

Key words: propylene oxide/PO, low boiling point flammable liquid, heptafluoropropane foam fire extinguishing system