基于防火分隔的水幕系统研究现状与展望

Research status and prospect of water curtain system based on fire separation

鉴于防火分隔水幕在特殊建筑使用的必要性,基于目前国内外对于水幕作防火分隔的研究成果,介绍了水幕系统的喷头类型、水幕参数以及布置方式对消防水幕衰减辐射热、阻隔有毒有害气体等方面能力的影响规律。分析得出选择细水雾喷头,设置合适的水幕参数以提高小直径液滴在水幕分布的均匀度,以及喷头的密集布置都有利于提高防火分隔水幕的隔热阻烟效果。阐述了防火分隔水幕的研究现状,分析了其当前的可行性与局限性。

In view of the necessity of using fire water curtain in special buildings,the current shortcomings of fire separation water curtain are analyzed,hoping to provide a reference for the design and research of fire water curtain system.In view of the necessity of the use of fire separated water screen in special buildings,this paper introduces the influence law of the nozzle type,water screen parameters and the arrangement of the water screen system on the attenuation of radiation heat and blocking toxic and harmful gases.The analysis shows that the fine water mist nozzle is selected,the appropriate parameters of water curtain is set to improve the uniformity of the distribution of small diameter droplets in the water curtain,and the dense layout of the nozzle are conducive to improve the heat insulation and smoke inhibiting effect of the fire separation water curtain.The author expounds the research status of fire separation water curtain,and analyzes its current feasibility and limitations,hoping to provide a reference for the design and research of fire separation water curtain system.