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[1]张培红,占 欢,张芸栗,等.地铁车厢机械排烟和细水雾耦合灭火效果研究*[J].中国安全生产科学技术,2009,5(4):10-13.
　ZHAN Pei hong,ZHAN Huan,ZHANG Yun li,et al.Study on the effect of fire suppression by coupling mechanical exhaust and water mist in subway carriage[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2009,5(4):10-13.
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地铁车厢机械排烟和细水雾耦合灭火效果研究*()
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
5
期数:
2009年4
页码:
10-13
栏目:
出版日期:
2009-08-31

文章信息/Info

Title:
Study on the effect of fire suppression by coupling mechanical exhaust and water mist in subway carriage
文章编号:
1673-193X(2009)-04-0010-04
作者:
张培红; 占 欢; 张芸栗; 刘 佳
沈阳建筑大学市政与环境工程学院
Author(s):
ZHAN Peihong; ZHAN Huan;  ZHANG Yunli;  LIU Jia
School of Municipal and Environmental Engineering,Shenyang JianZhu University
关键词:
细水雾; 热释放速率; 机械排烟; 烟气层
Keywords:
water mist;  HRR;  mechanical exhaust;  smoke layer
分类号:
X932
DOI:
-
文献标志码:
A
摘要:
采用火灾动力学软件FDS(Fire Dynamic Simulator)，以封闭单节地铁列车车厢为研究对象，模拟分析不同喷雾速度、排烟量以及排烟启动时刻条件下，车厢内火灾热释放速率、烟气层高度、烟气层温度的变化规律，对细水雾和机械排烟耦合作用下地铁列车车厢火灾灭火效果展开研究。结果表明，喷雾初速度较小时，细水雾动作之后启动排烟系统的灭火效果更好；喷雾初速度较大时，细水雾动作之前启动排烟系统的灭火效果更好；同样的喷雾初速度条件下，增大排烟量可以提高烟气层高度和降低烟气层温度，排烟量过大可能造成火焰区的扰动，降低细水雾的灭火效果。
Abstract:
FDS(Fire Dynamic Simulator) is used to simulate and analyse the changes of the heat release rate, the height and temperature of smoke layer in the condition of the different spray velocity, mechanical exhaust rate and the start time of mechanical exhaust. The results show that, when the spray velocity is smaller，the effect of fire suppression is best by starting the mechanical exhaust system before the water mist ejects; when the spray velocity is larger, the effect of fire suppression is best by starting the mechanical exhaust system after the water mist ejects. Furthermore, It can improve the height of smoke layer and reduce the temperature of smoke layer to increase the mechanical exhaust rate. However, if the mechanical exhaust rate is too large, the effect of fire suppression will be reduced because the fume area is disturbed. 

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：2009-06-22 作者简介： 张培红（1969-），博士，教授。 *基金项目： 建设部科技攻关项目和沈阳市科技局项目资助
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