[1]李安桂,彭浩,高然,等.细水雾灭火影响因素改变对受限空间燃油热释放率的影响[J].西安建筑科技大学学报(自然科学版),2018,50(06):878-883.[doi:10.15986/j.1006-7930.2018.06.017]
　LI Angui,PENG Hao,GAO Ran,et al.Influence of water mist fire extinguishing factors on fuel heat release in confined space[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2018,50(06):878-883.[doi:10.15986/j.1006-7930.2018.06.017]
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细水雾灭火影响因素改变对受限空间燃油热释放率的影响()
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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:
50
期数:
2018年06期
页码:
878-883
栏目:
出版日期:
2018-12-31

文章信息/Info

Title:
Influence of water mist fire extinguishing factors on fuel heat release in confined space
文章编号:
1006-7930(2018)06-0878-06
作者:
李安桂; 彭浩; 高然; 成劲光
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;  PENG Hao;  GAO Ran;  CHENG Jinguang
School of Environment and Municipal Engineering，Xi′an Univ. of Arch. & Tech., Xi′an 710055, China
关键词:
热释放率;  细水雾;  受限空间; 油池火;  峰值到达时间
Keywords:
heat release rate;  water mist;  confined space;  oil pool fire;  peak arrival time
分类号:
TU998.1
DOI:
10.15986/j.1006-7930.2018.06.017
文献标志码:
A
摘要:
研究细水雾灭火影响因素，包括改变油盘相对于喷头水平偏移距离、油盘与喷头垂直距离、油盘面积、预燃时间及喷头压力等.在全尺寸热释放率试验台的基础上，搭建不同油盘空间位置，细水雾条件下油池火燃烧实验台，研究了受限空间内细水雾对乙醇燃烧过程中热释放率的影响.结果表明，对于每个偏移距离存在一个最佳灭火位置，在此位置下，细水雾对热释放率的抑制效果最好；乙醇热释放率峰值随油盘面积增大而增大，随着细水雾喷头压力增大而减小;乙醇预燃时间越短，细水雾降低火源热释放率效果越好.该研究为受限空间内细水雾灭火设计提供了依据.
Abstract:
The paper studies on factors affecting the fire suppression of water mist, including the horizontal distance of the oil pan relative to the nozzle, the vertical distance of the oil pan and the nozzle, the oil pan area, the pre-burning time and the pressure of the water mist nozzle .Establishes a pool fire experimental platform with different oil pan space and water mist based on the full-size heat release rate experimental table, studies the influence of the water mist on the heat release rate of ethanol fuel during combustion in the confined space. The results show that there is an optimal fire-extinguishing position for each offset distance. At this position, the fine water mist has the best effect on the heat release rate. The peak of the heat release rate increases with the increase of oil pan area and the increase of the water mist nozzle pressure. The shorter the pre-burning time of ethanol, the better the effect of water mist on reducing the heat release rate.

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备注/Memo

备注/Memo:
收稿日期:2018-03-15修改稿日期:2018-10-15
基金项目:陕西省13115 重大专项“西安地铁空间交错车站火灾排烟及其人员疏散预案编制理论基础与工程示范，2009400”
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: 2019-02-16