电缆廊道细水雾灭火系统有效性对比分析  

Comparative analysis of the effectiveness of water mist fire extinguishing system in cable corridor

作　　者：李源 雷蕾 阚强 相坤 ZHANG Mei-hong;CHEN Li-min(Xiamen Fire and Rescue Detachment,Fujian Xiamen 361012,China;Fujian General Fire and Rescue Brigade,Fujian Fuzhou 350003,China)

机构地区：[1]中国人民警察大学,河北廊坊065000 [2]应急管理部天津消防研究所,天津300381 [3]中国建筑科学研究院有限公司,北京100013

出　　处：《消防科学与技术》2019年第11期1548-1552,共5页Fire Science and Technology

基　　金：公安部技术研究计划项目（2015JSYJC24）;北京市科技计划项目（Z171100000517007）;中国人民警察大学国家基金培育课题（ZKJJPY201624）,中国人民警察大学中青年教师科研创新计划（ZQN2017047）;河北省重点研发计划项目（18275410D）;住房和城乡建设部研究开发项目（2018-K4-009）

摘　　要：针对某城市综合管廊电缆廊道的示范段,建立FDS模型,分析在不同的空间结构、火源位置、环境气流速度下低、中、高压细水雾灭火系统的有效性。研究结果表明,空间结构较大时温度峰值更低;不同火源位置温度分布略有不同;机械通风速度越大,温度峰值越高,变化幅度越大,在细水雾作用下达到稳定燃烧的时间越短;高压细水雾在喷头动作后更能够有效地控制温度,降低温度峰值,减少稳定燃烧的时间。According to the certain section of a city’s integrated pipe corridor cable corridor,an FDS model was established to analyze the effectiveness of low,medium,and high pressure water mist fire extinguishing system under different spatial structures,fire source locations,and ambient airflow speed.The research results showed that when the space was larger,the peak value of temperature was lower;the temperature distribution of different fire source location is a little different;the bigger the velocity of mechanical ventilation,the higher the peak value of the temperature,the bigger the change is,and the faster the combustion under the water mist getting stable;the high-pressure water mist can better control the temperature after the nozzle is operated,reduce the temperature peak and reduce the stable combustion time.

关 键 词：电缆廊道 细水雾灭火系统 火源位置 气流速度 

分 类 号：X924.4[环境科学与工程—安全科学] TU990.3[建筑科学—市政工程]