高倍泡沫扑救LNG池火实验研究

Study on LNG Pool Fire Fighting with High Power Foam

搭建了大尺度LNG池火测试实验平台,应用摄像、热成像、热电偶树、热流计等仪器开展了LNG在池火燃烧机理及高倍泡沫对池火灾抑制作用的实验研究。结果表明高倍泡沫对LNG池火有较好的抑制作用,显著的降低LNG池火对周边构建筑物的热辐射危害,但以高倍泡沫灭火系统设计规范规定的略大于7.2 L/m^2·min供给强度下,高倍泡沫无法扑灭LNG池火。

LNG in the pool fire burning mechanism and high-expansion foam suppression effectiveness for pool fire by using camera, thermal imaging, thermocouple tree, heat flow meter and other instrument through large-scale fire test platform were discussed. The results showed that high-expansion foam had better suppression effectiveness for the LNG pool fire, significantly reduced the heat radiation hazard of LNG pool fire on the surrounding structures. But high- expansion can＇t completely put out the LNG pool fire with a little greater 7. 2 L/m2 · min supply intensity.