细水雾粒径对地下综合管廊电力舱火灾灭火效果的影响  

Influence of Fine Water Mist Size on Extinguishing Effect of Power Cabin Fire in Underground Utility Tunnel

作　　者：石磊 杨永斌 SHI Lei;YANG Yongbin(Tongzhou District Municipal Fire Brigade,Beijing 101149,China;China People＇s Police University,Langfang,Hebei Province 065000,China)

机构地区：[1]北京市通州区消防支队,北京101100 [2]中国人民警察大学,河北廊坊065000

出　　处：《消防技术与产品信息》2018年第11期47-50,共4页Fire Technique and Products Information

基　　金：公安部技术研究计划项目"城市地下综合管廊灭火技术及战术研究"(2016JSYJB25)

摘　　要：选取影响细水雾灭火效果的重要因素——雾滴粒径为研究对象,根据在建及计划建设的城市地下综合管廊电力舱相关设计参数,采用数值模拟的方法,分析了细水雾粒径对电缆桥架底层火场温度、火灾热释放速率和灭火时间3个重要参数的影响规律,得到了灭火效果较好的雾滴粒径取值范围,为实际工程设计提供参考。The droplet size was selected as the research object because of its importance in impacting the fire extinguishing effect of water mist. The influence patterns of the droplet size on the three factors of fire temperature,heat release rate and extinguishing time of the cable bridge bottom floor fire were analyzed by numerical simulation method and upon the relevant design parameters of the electric cabin in underground urban utility tunnel both under construction and planned construction. The range of droplet size with good extinguishing effect was obtained to provide reference for practical project design.

关 键 词：地下综合管廊 电力舱火灾 细水雾系统 细水雾粒径 灭火效果 

分 类 号：TU990.3[建筑科学—市政工程] TU998.1