建筑封闭式避难区空气质量研究

发布时间：2018-01-20 03:47

本文关键词： 高层建筑火灾封闭式避难区空气质量　出处：《消防科学与技术》2015年10期 　论文类型：期刊论文

【摘要】：分析国内外消防规范对避难区设置及其正压送风系统和防火分隔等的相关规定。用FDS模拟高层建筑楼梯间发生火灾后的烟气流动、温升和CO体积分数变化情况。结合人体健康安全的基本要求,模仿火灾避难区室内环境,试验验证了空气质量对试验人员人体健康的影响。重点研究了在避难区额定保护时间内,温度、湿度和CO2体积分数单独和综合作用时对试验人员体征指标的影响。结果表明,各因素单独影响时效果有限,综合作用时影响效果明显。建议设计避难区时应对空气质量加以重视并采取必要的应对措施。
[Abstract]:This paper analyzes the relevant regulations of fire protection code at home and abroad on the setting of refuge area, positive pressure air supply system and fire prevention separation, etc. FDS is used to simulate the flue gas flow in the stairwell of high-rise building after fire. The changes of temperature rise and CO volume fraction, combined with the basic requirements of human health and safety, mimic the indoor environment in the fire shelter area. The effect of air quality on the human health of the test personnel was verified. The emphasis was placed on the temperature during the rated protection time in the asylum area. The effect of humidity and CO2 volume fraction on the index of physical signs of the experimenter alone and synthetically. The results showed that the effect of each factor alone was limited. It is suggested that attention should be paid to air quality and necessary countermeasures should be taken in the design of shelter area.
【作者单位】：公安部天津消防研究所;
【基金】：公安部消防局应用创新计划项目“高层建筑火灾避难间应用技术基础研究”(2013XFCX08)~~
【分类号】：TU972.4
【正文快照】： GB　50016-2014《建筑设计防火规范》(以下简称“建规”)中表述的避难层或避难间,国际上称为避难区(Areaof　Refuge),特指那些在火灾中,某些人员因疏散距离远、行动能力差或疏散通道被烟火封阻而无法正常向外界疏散时,用来暂时躲避火灾有毒热烟气危害的安全场所。避难区可设在

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