城市地下综合管廊灭火系统试验  

An experimental study of fire extinguishing system for urban utility tunnel

作　　者：陈治君 张刚[1] 石晓龙 关通 CHEN Zhi-jun;ZHANG Gang;SHI Xiao-long;GUAN Tong(Hainan General Fire Brigade,Hainan Haikou 571100,China;Hefei KedaLi'an Safety Technology Co.,Ltd.,Anhui Hefei 230088,China;Haikou Utility Tunnel Investment Management Co.,Ltd.,Haman Haikou 571200,China)

机构地区：[1]海南省消防总队,海南海口571100 [2]合肥科大立安安全技术股份有限公司,安徽合肥230088 [3]海口市地下综合管廊投资管理有限公司,海南海口571200

出　　处：《消防科学与技术》2019年第1期110-112,118,共4页Fire Science and Technology

摘　　要：GB 50838-2015《城市综合管廊工程技术规范》中规定,综合管廊中容纳电力电缆的舱室应设置自动灭火系统,但未明确要求采用何种自动灭火系统及具体设置参数,对灭火系统选取的研究也大多停留在理论对比分析层面。通过综合管廊实体火灾试验对比,分析了干粉灭火系统和细水雾灭火系统在管廊内的适用性,认为对于地下综合管廊电力舱,细水雾灭火系统的综合灭火效果好、性价比高、具有良好的电气绝缘性,相比于超细干粉灭火系统有明显优势。GB 50838-2015 Technical code for urban utility tunnel engineering stipulates that the cabin containing power cables in the urban utility should be equipped with automatic fire extinguishing system,but the requirements are not clear for the kind of automatic fire extinguishing system and specific parameters,and the research on the selection of fire extinguishing system mostly remains at the level of theoretical comparative analysis.Based on the comparison of the fire tests of the utility tunnel,the applicability of the dry powder fire extinguishing system and the water mist fire extinguishing system is analyzed.It is considered that the water mist fire extinguishing system has good comprehensive fire extinguishing effect,high cost performance and good electrical insulation for the cabin of the utility tunnel,and has obvious advantages over the ultra-fine dry powder fire extinguishing system.

关 键 词：综合管廊 灭火系统 细水雾 超细干粉 

分 类 号：X924.4[环境科学与工程—安全科学] TU892[建筑科学]