细水雾-惰性气体协同灭火性能试验研究  

Experimental study on synergetic fire extinguishing performance of water mist and inert gas

作　　者：罗振敏 王欣 王涛 孟子骐 王子谨 LUO Zhenmin;WANG Xin;WANG Tao;MENG Ziqi;WANG Zijin(School of Safety Science and Engineering,Xi'an University of Science and Technology,Xi'an Shaanxi 710054,China;Shaanxi Engineering Research Center for Industrial Process Safety&Emergency Rescue,Xi'an Shaanxi 710054,China;Shaanxi Key Laboratory of Prevention and Control of Coal Fire,Xi'an Shaanxi 710054,China)

机构地区：[1]西安科技大学安全科学与工程学院,陕西西安710054 [2]陕西省工业过程安全与应急救援工程技术研究中心,陕西西安710054 [3]陕西省煤火灾害防治重点实验室,陕西西安710054

出　　处：《中国安全科学学报》2022年第10期63-68,共6页China Safety Science Journal

基　　金：陕西省创新能力支撑计划(2020TD-021)。

摘　　要：为提高细水雾灭火效率,利用试验研究和数学模型分析,研究细水雾和惰性气体氮气(N_(2))和二氧化碳(CO_(2))的灭火性能及协同灭火效应。通过自主设计搭建的杯式燃烧器试验装置测试细水雾和惰性气体的单一及复合灭火效果,建立适用于细水雾和惰性气体的协同因子数学模型。结果表明:N_(2)灭乙醇火和庚烷火的最小体积分数分别为34.92%和31.97%,CO_(2)灭乙醇火和正庚烷火的最小体积分数分别为24.37%和22.15%;从协同效应来看,细水雾与N_(2)存在正协同灭火效应,而与CO_(2)协同灭火效应不明显,N_(2)与CO_(2)之间没有表现出协同灭火效应。In order to improve the fire extinguishing efficiency of water mist,the fire extinguishing performance and synergistic fire extinguishing effect of water mist,inert gas nitrogen(N_(2))and carbon dioxide(CO_(2))were studied by experimental study and mathematical model analysis.The single and compound fire extinguishing effects of water mist and inert gas were tested by a self-designed cup burner test device,and a mathematical model of synergy factor suitable for water mist and inert gas was established.The results show that the minimum volume fractions of N_(2)ethanol-extinguishing fire and heptane-extinguishing fire were 34.92%and 31.97%,respectively,and that of CO_(2)ethanol-extinguishing fire and heptane-extinguishing fire were 24.37%and 22.15%,respectively.From the perspective of synergistic effect,there is a positive synergistic fire extinguishing effect between water mist and N_(2),but the synergistic fire extinguishing effect with CO_(2)is not obvious,and there is no synergistic fire extinguishing effect between N_(2)and CO_(2).

关 键 词：细水雾 惰性气体 协同灭火 灭火性能 杯式燃烧器 

分 类 号：X932[环境科学与工程—安全科学]