[1]李安桂,成劲光,高然.基于超细水雾作用下的地铁站台空间火灾烟气温度特性[J].西安建筑科技大学学报(自然科学版),2019,51(03):426-431.[doi:10.15986/j.1006-7930.2019.03.018]
　LI Angui,CHENG Jinguang,GAO Ran.The temperature characteristics of fire smoke in subway platform spacebased on ultrafine-water mist[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2019,51(03):426-431.[doi:10.15986/j.1006-7930.2019.03.018]
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基于超细水雾作用下的地铁站台空间火灾烟气温度特性()
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西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
51
期数:
2019年03期
页码:
426-431
栏目:
出版日期:
2019-06-30

文章信息/Info

Title:
The temperature characteristics of fire smoke in subway platform spacebased on ultrafine-water mist
文章编号:
1006-7930(2019)03-0426-06
作者:
李安桂; 成劲光; 高然
(西安建筑科技大学 环境与市政工程学院，陕西 西安 710055)
Author(s):
LI Angui;  CHENG Jinguang;  GAO Ran
(School of Environment and Municipal Engineering，Xi′an Univ. of Arch. & Tech., Xi′an 710055, China)
关键词:
超细水雾; 模型试验; 温度衰减; 烟气层高度; 降温效率
Keywords:
ultrafine-water mist;  model test;  temperature decay; smoke layer height;  cooling efficiency
分类号:
U231.96
DOI:
10.15986/j.1006-7930.2019.03.018
文献标志码:
A
摘要:
通过搭建超细水雾发生装置及地铁站台模型，进行了超细水雾作用下的烟气温度特性试验研究.结果表明：施加超细水雾后，烟气温度纵向分布在靠近火源的区域迅速衰减，之后温度基本不再变化，且对烟气层高度几乎无影响.另外，超细水雾可以迅速降低烟气温度，降温效果与雾化量、驱动气流速度、施加超细水雾时间等因素有关，雾化量、驱动气流速度增大温度降低，燃烧初期施加超细水雾的效果较好.随火源与超细水雾入口之间的距离增加，温度衰减趋势越迅速，且超细水雾入口位置对阻隔烟气扩散有一定作用.
Abstract:
Through the establishment of ultra-fine water mist generation system and subway platform model to carried out studies of smoke temperature under the effect of ultra-fine water mist. The results show that, the temperature of smoke is rapidly decay in the area near the fire source and then the temperature does not change obviously after applying the ultra-fine water mist and there is almost no effect on the height of the smoke layer. In addition, the ultra-fine water mist can rapidly reduce the temperature of the smoke, the cooling effect related to the atomization amount, the driving speed of the air flow, and the time applying ultra-fine water mist. The smoke temperature will decrease as the amount of atomization or the speed of the driving air flow increases and applying ultra-fine water mist in the combustion early stage shows the more effective cooling effect. The temperature decay more quickly with the increase of the distance between the fire source and the ultra-fine water mist inlet. Also, the ultra-fine water mist inlet position has a role in blocking the spread of smoke.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2018-03-27修改稿日期:2019-04-25
基金项目:陕西省科技创新重点项目（13115）;中国工程院咨询研究项目（2017-XZ-15-4）
第一作者:李安桂（1963-），男，教授，博士生导师，主要从事建筑通风空调及建筑节能研究.E-mail:liag@xauat.edu.cn
更新日期/Last Update: 2019-07-22