摘要
氮气灭火系统因其环保节能、稳定性高等特点,在建筑消防领域展现出巨大的发展空间。为进一步拓宽氮气灭火系统的应用领域,通过缩尺寸模型实验分析了氮气灭火系统对受限空间木垛火的灭火时间、氧气浓度、火焰温度等窒息特性参数的影响。结果表明,氮气灭火系统对受限空间中木垛火展现了良好的窒息灭火效果,其中不同火源功率的木垛火在受限空间中的灭火时间接近。
Nitrogen fire-extinguishing system has great development space in building fire protection field due to its environmental protection,energy saving,high stability.In order to broaden the application field of nitrogen fire extinguishing system,the effects of nitrogen extinguishing system on fire extinguishing parameters including extinguishing time,oxygen concentration and flame temperature of wood stack fires in confined space are analyzed through a small-scale experimental model.The results show that nitrogen fire-extinguishing system has a good asphyxiation and fire extinguishing effect on the wood stack fires in confined space,and the fire extinguishing time of the wood stack fires with different fire loads is closed in the confined space..
作者
赖振中
李帷轩
徐志胜
肖俏伟
李银波
陈彦
Lai Zhenzhong;Li Weixuan;Xu Zhisheng;Xiao Qiaowei;Li Yinbo;Chen Yan(Institute of Disaster Prevention Science and Safety Technology of Central South University,Hunan Changsha 410075;Sany Automobile Manufacturing Co.,Ltd.,Hunan Changsha 410100)
基金
国家自然科学基金项目(52176146)
湖南省重点研发计划项目(No.2021SK2054)。
关键词
氮气灭火系统
受限空间
木垛火
灭火效能
氧气浓度
Nitrogen fire-extinguishing system
Confined space
Wood stack fire
Fire-extinguishing efficiency
Oxygen concentration
