水电站电缆竖井细水雾灭火性能数值模拟研究  

Numerical simulation study of water mist fire extinguishing performance in cable shaft of hydropower station

作　　者：叶虹 宁潇尧 陈钦佩 骆育真 许峥 金翔 YE Hong;NING Xiao-yao;CHEN Qin-pei;LUO Yu-zhen;XU Zheng;JIN Xiang(Huadong Engineering Corporation Limited,Zhejiang Hangzhou 311122,China;State Key Laboratory of Fire Science,University of Science and Technology of China,Anhui Hefei 230026,China;Tianjin Fire Science and Technology Research Institute of MEM,Tianjin 300381,China;Nanjing Sunwoda New Energy Co.,Ltd.,Jiangsu Nanjing 211200,China)

机构地区：[1]中国电建集团华东勘测设计研究院有限公司,浙江杭州311122 [2]中国科学技术大学火灾科学国家重点实验室,安徽合肥230026 [3]应急管理部天津消防研究所,天津300381 [4]南京市欣旺达新能源有限公司,江苏南京211200

出　　处：《消防科学与技术》2021年第6期888-891,905,共5页Fire Science and Technology

基　　金：中国电建集团华东勘测设计研究院有限公司-中国科学技术大学科技项目。

摘　　要：水电站电缆竖井是用于给水电站铺设供电电缆或通信电缆的竖直高层通道,高度可达百米。如若封堵不严或无封堵,火灾将沿着电缆竖井迅速蔓延。本文以某水电站电缆竖井为研究对象,采用FDS数值模拟软件,研究了高压细水雾喷头纵向间距、同时启动的楼层数、喷头流量系数和喷雾角度4种因素对灭火效果的影响。确定了各因素临界值,以有效发挥灭火作用,该结果可为水电站电缆竖井灭火系统设计提供参考。The cable shaft of a hydropower station is a vertical high-rise channel,up to 100 meters high,used for laying power supply cables or communication cables for a hydropower station.If it is not well sealed or not sealed,the fire will spread quickly along the cable shaft.Taking the cable shaft of a hydropower station as the research object and using FDS numerical simulation software,this paper studies the influence of four factors,including longitudinal distance of high pressure water mist nozzles,number of simultaneous starting floors,nozzle flow coefficient and spray angle,on the fire-extinguishing effect.The critical values of each factor are established to effectively play the role of fire extinguishing.The results can provide reference for the design of fire extinguishing system of cable shaft of hydropower station.

关 键 词：电缆竖井 水电站 细水雾灭火系统 FDS 

分 类 号：TU892[建筑科学] TU998.1