摘要
以火灾危险性高,且较难扑救的乙烯-醋酸乙烯共聚物(EVA)鞋材为研究对象,建立了EVA鞋材堆垛火试验模型,考察了灭火剂流量对EVA鞋材火灭火效果的影响,对比了泡沫灭火剂和水系灭火剂的灭火效能差异。研究结果表明,灭火剂流量是灭火剂对A类火灾灭火效果的关键因素,在0.80 L/min条件下可有效区分水和水成膜泡沫灭火剂(AFFF)对EVA鞋材火的灭火和降温效果差异;高倍泡沫灭火剂和水系灭火剂对EVA鞋材火的灭火性能和降温效果显著优于AFFF和抗溶水成膜泡沫灭火剂(AFFF/AR),形成灭火泡沫有助于提升灭火用水的利用率,润湿性能是影响水基型灭火剂扑救EVA鞋材的一个重要参数。
In this study,ethylene⁃vinyl acetate copolymer(EVA)shoe material stacking fire model was established because of its high fire risk and difficult to extinguish.The influence of fire extinguishing agent flow rate on the fire extinguishing effect of EVA shoe materials was investigated,and the difference of fire extinguishing efficiency between foam fire extinguishing agent and water based extinguishing agent was compared.The results show that the flow rate of fire extinguishing agent is the key factor affecting its extinguishing efficiency on Class A fire,and the difference in fire extinguishing and cooling effect of water and AFFF can be effectively distinguished at the flow rate of 0.80 L/min.The fire control performance and cooling effect of high expansion foam and water⁃based fire extinguishing agent are significantly better than that of AFFF and AFFF/AR.The formation of fire extinguishing foam is conducive to improve the utilization rate of fire extinguishing water.Wetting performance is an important param eter affecting the water based fire extinguishing agent to EVA shoe material fire fighting.
作者
张宪忠
余君
包志明
胡成
Zhang Xianzhong;Yu Jun;Bao Zhiming;Hu Cheng(Tianjin Fire Science and Technology Research Institute of MEM,Tianjin 300381,China;Key Laboratory of Fire Protection Technology for Industry and Public Building,Ministry of Emergency Management,Tianjin 300381,China;Tianjin Key Laboratory of Fire Safety Technology,Tianjin 300381,China;Quanzhou Fire and Rescue Division,Fujian Quanzhou 362000,China)
出处
《消防科学与技术》
CAS
北大核心
2023年第9期1270-1274,共5页
Fire Science and Technology
基金
国家重点研发计划项目(2022YFC3004902)。
关键词
EVA
固体堆垛火
水基型灭火剂
润湿性能
EVA
solid stacking fire
water⁃based fire extinguishing agent
wetting performance
