为系统研究抗溶泡沫扑救水溶性可燃液体火灾的灭火特性,针对5种水溶性可燃液体开展了泡沫和液体相互作用的冷态试验,针对14种水溶性可燃液体,采用3种泡沫液开展了1.73 m2燃烧盘灭火试验.试验表明,抗溶泡沫和水溶性液体之间的相互作用依泡沫液是否添加黄原胶和水溶性液体的溶解度不同而异;影响水溶性可燃液体泡沫灭火的主要因素为其溶解度、沸点和燃烧热.添加黄原胶的抗溶水成膜泡沫灭火性能优于抗溶氟蛋白泡沫,两者均优于未添加黄原胶的低黏度抗溶氟蛋白泡沫.低黏度抗溶氟蛋白泡沫对水溶性液体具有较强的选择性,灭醇类液体火灾性能不佳.%In order to study the extinguishing characteristic of water soluble flammable liquid by alcohol-resistant foam, the cold test and the foam extinguishing test were carried out. The results showthat the interaction between foam and water soluble liquid is different depending on whether the foam liquid is added the xan-than gum or not and the solubility of the water soluble liquid. The main factors that affect the extinguishing of water soluble flamma-ble liquids fire are solubility, boiling point and combustion heat, the extinguishing performance of the alcohol-resistant aqueous film-forming foam concentrate(AFFF/AR) and the alcohol-resis-tant fluoroprotein foam concentrate(FP/AR) which are added the xanthan gum are better than the low viscosity alcohol-resistant fluo-roprotein foam concentrate(FP/AR D),and AFFF/AR is better than that the FP/AR. The FP/AR D has selectivity to water solu-ble liquid, and it's extinguishing performance is poor for alcohol liquid fire.
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