|本期目录/Table of Contents|

[1]张威,何嘉鹏,李静娴.走廊-前室缓冲区在建筑火灾中的可行性分析[J].中国安全生产科学技术,2011,7(9):11-17.
 ZHANG wei,HE Jia-peng,LI Jing-xian.Feasibility analysis?on "corridor-atria buffer" in smoke control of high-rise building fire[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2011,7(9):11-17.
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走廊-前室缓冲区在建筑火灾中的可行性分析()
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
7
期数:
2011年9期
页码:
11-17
栏目:
学术论著
出版日期:
2011-09-30

文章信息/Info

Title:
Feasibility analysis?on "corridor-atria buffer" in smoke control of high-rise building fire
文章编号:
1673-193X(2011)-09-0011-07
作者:
张威12何嘉鹏12李静娴12
1. 南京工业大学城市建设与安全工程学院,南京? 210009
2. 江苏省城市与工业安全重点实验室,南京? 210009
Author(s):
ZHANG wei12 HE Jia-peng12 LI Jing-xian12
1. School of Urban Construction and Safety Engineering, Nanjing University of Technology, Nanjing? 210009, China
2. Jiangsu Key Laboratory of Urban and Industrial Safety, Nanjing? 210009, China
关键词:
烟气控制数值模拟缓冲区通风
Keywords:
smoke control numerical simulation. Buffer ventilation
分类号:
X932
DOI:
-
文献标志码:
A
摘要:
高层建筑火灾中,随着机械加压送风研究的深入,发现其存在着一些缺陷。于是提出在走廊段设置"走廊-前室缓冲区"的方式来改善传统正压送风模式。其完整设想是在前室前设置一段无烟区,通过防烟空气幕作为柔性隔断划分缓冲段和走廊段,并且在空气幕前设置排烟口,排出多余的新鲜空气,从而避免影响火场的机械排烟效率。采用Fire Dynamic Simulation(FDS)场模拟软件模拟高层建筑不同走廊模型。针对条形走廊、L形走廊、环形走廊建筑是否设置缓冲区进行模拟,比较其温度场,浓度场,以及各自排烟效果。结果显示,"走廊-前室缓冲区"的设置能较好的适用于不同的走廊模型,改善传统正压送风模式,便于火灾时人员疏散,而且其机械效率都有显著提高,保证走廊内烟气的及时排出。
Abstract:
In the fires of high-rise building, with the deeply research on pressurization air supply, some flaws have been present. For instance, smoke may accumulate before atria, affecting the evacuation visibility; if the door of atria is closed, the evacuation of vulnerable groups are hard to open the door to escape; In addition, if the fresh air from atria spread to the corridor, efficiency of smoke extraction will be affected. So “corridor-Atria Buffer” is proposed to improve the traditional pressurizing air supply system, which is set between atria and corridor. A complete setting of "corridor-atria buffer" is hoped to give a no-smoke zone, where air curtain is considered to divide the corridor and atria as a partition, which the horizontal flow is replaced by vertical flow; and the air outlet is used before air curtain to let the smoke and excessive fresh air out. And Fire Dynamic Simulation (FDS) is applied to simulate the different model of high-rise fire. The buffer is simulated in straight corridor, L-shaped corridor and ring-shaped corridor respectively, from which temperature field and concentration field are compared, as well as their own smoke efficiency. The results reflected that the setting of buffer can be better applied to the different corridor models, improved conventional one, which not only is easy for people to evacuation, also increase the efficiency of smoke extraction significantly to ensure that the smoke is let out in corridor timely.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2011-04-13
作者简介:张威,硕士研究生。
基金项目:江苏省自然科学基金(编号:BK2008369)
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