摘要
利用FDS数值模拟软件,采取控制变量法设置4组数值模拟,分别研究细水雾系统水滴粒径、雾化角度、喷水强度、喷头高度对火源周围存在无法燃烧或尚未开始燃烧的障碍物情况下灭火效果的影响。研究发现,当火源设置为乙醇池火时,存在障碍物条件下,细水雾系统水滴粒径设置在250~400μm,雾化角度设为120°,喷水强度设为2.0~2.5 L/(min·m^(2)),喷头高度距障碍物1 m时灭火效果较为理想。
FDS was used to set up four groups of numerical simulation by the control variable method to study the influence of water droplet size,atomization angle,spray intensity and nozzle height on the fire extinguishing effect of fire with obstacles that cannot burn or has not yet begun to burn.It is found that when the fire source is ethanol pool fire and there are obstacles,the fire extinguishing effect is better;when the water droplet size of the water mist system is set at 250~400μm,the atomization angle is set at 120°,the spray intensity is set at 2.0~2.5 L/(min·m^(2)),and the sprinkler height is 1 m from the obstacle.
作者
邓琦
马家辉
陈铁鑫
DENG Qi;MA Jia-hui;CHEN Tie-xin(Puyang Fire and Rescue Division,Henan Puyang 457000,China;Henan Fire and Rescue Brigade,Henan Zhengzhou 450008,China)
出处
《消防科学与技术》
CAS
北大核心
2021年第2期225-227,278,共4页
Fire Science and Technology
关键词
细水雾
FDS
数值模拟
灭火效果
障碍物
water mist
FDS
numerical simulation
fire extinguishing effect
obstacle
作者简介
邓琦(1988-),男,濮阳市消防救援支队经济技术开发区大队初级专业技术职务,专业技术十一级,主要从事防火监督工作,河南省濮阳市濮上路3号,457000。
