地铁站厅火灾不同排烟模式下的排烟效率研究  

Study on Smoke Exhaust Efficiency in Different Smoke Exhaust Modes in case of Subway Station Fire

作　　者：篮杰[1] 范乐乐[1] 余伟之 王艳[2] 王健 张帅 LAN Jie;FAN Le-le;YU Wei-zhi;WANG Yan;WANG Jian;ZHANG Shuai(China Railway Siyuan Survey and Design Group Co.,Ltd.,Wuhan 430063,China;Zhongyuan University of Technology,Zhengzhou 450000,China;Zhengzhou Rail Transit Co.,Ltd.,Zhengzhou 450000,China)

机构地区：[1]中铁第四勘察设计院集团有限公司城地院暖通所,武汉430063 [2]中原工学院能源与环境专业,郑州450000 [3]郑州市轨道交通有限公司,郑州450000

出　　处：《铁道标准设计》2018年第12期148-153,共6页Railway Standard Design

基　　金：国家自然科学基金(31500394);河南省基础与前沿技术研究计划项目(132300410473)

摘　　要：为了提高地铁车站站厅层公共区的排烟效率,针对郑州某地铁车站站厅层公共区设计了不同的排烟工况。通过利用FDS模拟软件对不同的排烟工况进行仿真模拟,得到下排烟口、侧排烟口、顶排烟口3种工况下温度、能见度、CO浓度随时间的变化图,通过对比分析得出结论:侧排烟口、顶排烟口、顶排风口均能满足人员的安全疏散要求;侧排烟口、顶排烟口比下排烟口的排烟效果好,侧排烟口和顶排烟口的排烟效果基本相同。通过进一步比较侧排烟口个数及大小对人员安全疏散的影响,得出:6个侧排烟口、3个侧排烟口比12个侧排烟口的排烟效果好;6个侧排烟口与3个侧排烟口的排烟效果基本相同。In order to improve the efficiency of smoke exhaust in the public area of the subway station hall, this paper designs different smoke exhausting conditions for the public area of a subway station in Zhengzhou. Based on FDS software simulation of smoke under different conditions, we get the variation diagram of temperature, visibility and CO concentration with time from the lower smoke outlets, side smoke outlets and top smoke outlets. Comparison and analysis conclude that the side smoke outlets, the top smoke outlets and the top exhaust outlets can meet the safe evacuation requirements of the personnel; the smoke exhaust effects of the side smoke outlets and the top smoke outlets are better than that of the lower smoke outlets, and the smoke exhaust effects of the side smoke outlets and the top smoke outlets are basically the same. By further comparing the influence of the number and the size of side smoke outlets on evacuation, it is concluded that： 6 side smoke outlets and 3 side smoke outlets have better smoke exhaust effect than that of 12 side outlets; the smoke exhaust effect of 6 side smoke outlets and 3 side outlets is basically the same

关 键 词：地铁 站厅火灾 仿真模拟 排烟模式 排烟效果 FDS 

分 类 号：U231.96[交通运输工程—道路与铁道工程]