机械排烟下高压细水雾对地下商场火灾灭火效果的数值模拟  

Numerical Simulation of Extinguishing Effect of High Pressure Water Mist on the Underground Mall Fire under the Condition of the Mechanical Smoke Exhaust

作　　者：王健[1] 丁红雨[1] 

机构地区：[1]沈阳建筑大学市政与环境工程学院,沈阳100168

出　　处：《城市建筑》2014年第18期237-237,共1页Urbanism and Architecture

摘　　要：运用 FDS 模拟在特定机械排烟量下地下商场发生火灾时，观察不同细水雾喷头间距对火场烟气的控制影响。分析得到，在5 MW火灾功率下，排烟量60 m^3/（h·m^2）时，喷头间距2.0 m灭火效果较好，对大空间消防设计中喷头间距3.0 m更经济。Using FDS simulation, under specific quantity of mechanical smoke exhaust, the effect of different spacing of water mist sprinkler on the fire smoke control was observed in case of a fire occurs in underground mall. From the analysis result, under the condition of fire power is 5 MW, smoke exhaust volume is 60 m^3/（h m^2）, nozzle spacing is 2.0 m, the extinguishing effect is best, the design of fire protection in large space with sprinkler spacing of 3.0 m is more economic.

关 键 词：火灾 细水雾 喷头间距 

分 类 号：TU998.12[建筑科学—市政工程]