喷头类型对防火分隔水幕阻烟隔热效率影响研究述评  

Review Effects of Nozzle Types on Smoke Blocking and Heat Insulation of Fireproof Water Curtains

作　　者：冷怡靓 李思成 张紫琪 郭天宝 LENG Yijing;LI Sicheng;ZHANG Ziqi;GUO Tianbao(China People’sPolice University,Langfang,Hebei Province 065000,China)

机构地区：[1]中国人民警察大学,河北廊坊065000

出　　处：《中国人民警察大学学报》2023年第10期46-52,共7页Journal of China People's Police University

基　　金：2022年河北省重点研发计划项目“多参数耦合作用下防火分隔水幕对电动汽车分散充电地下汽车库火灾烟气扩散抑制效果的影响”(22375418D)。

摘　　要：对于无法采用实体防火分隔的场所,往往选用分隔水幕实现防火分隔的目的。喷头类型对防火分隔水幕的形成有很大影响,继而影响水幕的阻烟隔热效率。分析防火分隔水幕热辐射衰减和烟气阻隔能力的理论基础,系统总结开式洒水喷头、水幕喷头、细水雾喷头三种类型水幕阻烟隔热效率的国内外研究成果,指出流量特性系数、水滴或水雾粒径、水幕形状等与水幕热辐射衰减能力和烟气阻隔能力的相关性,并根据国内外研究现状及当前消防工程安全实践需要,对今后防火分隔水幕喷头类型研究提出看法。In some places where physical fire compartmentation cannot be used,we often use water curtains to achieve the same purpose.Various spray nozzles can have great effect on the formation of different water curtains,and thus on the efficiency of smoke blocking and heat insulation.Based on the theoretical analysis of the attenuation of the fire radiation and smoke barrier produced by the fireproof water curtain,this paper systematically summarizes the effects of three types of spray nozzles from the research results at home and abroad,and points out the correlation between the water curtain’s effect and some conditions such as flow coefficient,particle size of water droplet or water mist,shape of water curtain.Moreover,according to the researching status quo and current needs of firefight-ing,and the deficiencies in this research field,some recommendations on how to make further research on the nozzle types in the future are made.

关 键 词：防火分隔水幕 热辐射衰减 烟气阻隔 喷头类型 

分 类 号：TU998.1[建筑科学—市政工程]