摘要
基于小尺寸抛沙装备研究沙灭标准1-A木垛火的灭火效果,利用K型铠装热电偶、红外热成像仪等仪器测量抛沙灭火前后木垛火的变化特征。结果表明,抛撒沙料能有效抑制木垛表面明火,灭火初期木垛上方火焰被压制,抛沙灭火30 s时木垛表面明火消失。沙料冲击下木垛不同位置的温度变化存在明显差异,温度下降幅度为:迎沙面最大、侧沙面次之、中心线最差。
Based on the small-scale sand throwing equipment,the fire-fighting effect of sand extinguishing standard 1-A wood crib fire was studied.The change characteristics of wood crib fire before and after sand throwing were measured by K-type armored thermocouple and infrared thermal imager.The results show that the sand can effectively inhibit the open fire on the surface of the wood crib,and the flame above the wood crib was suppressed at the initial stage of fire extinguishing,and the open fire on the surface of the wood crib disappears after 30 s of sand throwing.Under the impact of sand,there are obvious differences in the temperature changes at different positions of the wooden pile.The temperature drop range is shown as follows:the surface facing the sand is the largest,the surface at the side of sand is the second,and the center line is the least.
作者
郭万海
朱国庆
姚斌
梁震寰
GUO Wan-hai;ZHU Guo-qing;YAO Bin;LIANG Zhen-huan(Jiangsu Key Laboratory of Fire Safety in Urban Underground Space,Jiangsu Xuzhou 221116,China;Institute of Public Safety and Fire Protection,China University of Mining and Technology,Jiangsu Xuzhou 221116,China;Key Laboratory of Gas and Fire Control for Coal Mines,China University of Mining and Technology,Jiangsu Xuzhou 221116,China;Faculty of Safety Engineering,China University of Mining and Technology,Jiangsu Xuzhou 221116,China)
出处
《消防科学与技术》
CAS
北大核心
2020年第11期1515-1518,共4页
Fire Science and Technology
基金
国家重点研发计划项目“公共安全风险防控与应急技术装备重点专项”(2016YFC0802900)
关键词
小尺寸抛沙装备
1-A木垛火
抛沙灭火
温度变化
small size sand throwing equipment
1-A wood crib fire
extinguishment by sand-throwing
temperrature changes
作者简介
郭万海(1994-),男,甘肃武威人,中国矿业大学安全工程学院硕士研究生,主要从事建筑火灾防护和性能化防火设计等方面的研究,江苏省徐州市泉山区大学路1号,221116;通信作者:朱国庆(1968-),男,中国矿业大学安全工程学院教授。
