城市建筑
城市建築
성시건축
URBANISM AND ARCHITECTURE
2014年
21期
237-237
,共1页
火灾%细水雾%喷头间距
火災%細水霧%噴頭間距
화재%세수무%분두간거
fire%water mist%sprinkler spacing
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 m3/(h·m2)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。
運用 FDS 模擬在特定機械排煙量下地下商場髮生火災時,觀察不同細水霧噴頭間距對火場煙氣的控製影響。分析得到,在5 MW火災功率下,排煙量60 m3/(h·m2)時,噴頭間距2.0 m滅火效果較好,對大空間消防設計中噴頭間距3.0 m更經濟。
운용 FDS 모의재특정궤계배연량하지하상장발생화재시,관찰불동세수무분두간거대화장연기적공제영향。분석득도,재5 MW화재공솔하,배연량60 m3/(h·m2)시,분두간거2.0 m멸화효과교호,대대공간소방설계중분두간거3.0 m경경제。
Using FDS simulation, under specific quantity of mechanical smoke exhaust, the ef ect of different spacing of water mist sprinkler on the fire smoke control was observed in case of a fire occurs in underground mal . From the analysis result, under the condition of fire power is 5 MW, smoke exhaust volume is 60 m3/(h m2), 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.