摘要
从火灾烟气蔓延及其控制效果出发,采用FDS6. 2构建东湖隧道侧向集中排烟模型,通过对不同排烟量下隧道内烟气蔓延范围、排烟效率、温度场、人员疏散微环境排烟效果指标进行定量分析,得到东湖隧道侧部集中排烟系统在20 MW火灾时合理排烟量为300 m3/s。研究表明,侧部集中排烟模式下,当风机排烟量大于有效控烟所需风量时,配以2. 69 m/s隧道断面风,风机排烟量越大对隧道内火灾烟气蔓延的控制效果越明显。
Based on the fire and smoke spread and control effect,FDS6.2 is used to construct side concentrated smoke exhaust model of East Lake Tunnel and it is eventually concluded that the reasonable smoke of the East Lake Tunnel side concentrated smoke exhaust system of rational gas in 20 MW fire is 300 m 3/s by quantitatively analyzing different smoke exhaust rate spread range,efficiency,temperature field and smoke evacuation micro environment smoke effect indicators.The research shows that,when the fan exhaust rate is greater than the effective tobacco control required air rate,the control effect of fan exhaust rate on the fire and smoke spread in tunnels will be more obvious with wind tunnel section 2.69 m/s.
作者
姜学鹏
吴锦东
王宝伟
JIANG Xuepeng;WU Jindong;WANG Baowei(School of Resource and Environmental Engineering,Wuhan University of Science and Technology Wuhan 430081)
出处
《工业安全与环保》
2018年第11期6-9,100,共5页
Industrial Safety and Environmental Protection
基金
公安部消防局科研计划项目(2016XFCX20)
湖北省自然科学基金计划面上项目(2015CFB200)
灭火救援技术公安部重点实验室开放课题(KF201706)
冶金矿产资源高效利用与造块湖北省重点实验室开放基金(2017ZY004)
武汉科技大学青年科技骨干培育计划项目(2017XZ014)
关键词
东湖隧道
侧向集中排烟
火灾烟气蔓延
控制
合理排烟量
East Lake Tunnel
side concentrated smoke exhaust
fire and smoke spread
control
reasonable amount of smoke
