复式住宅火灾危害性探讨

Discussion on the fire smoke hazard of duplex apartment

为准确衡量实际火灾烟气危害,提出一种综合考虑温度、能见度、烟气毒性的火灾烟气危害评价模型HVCHT。以云南地区复式住宅为例,基于FDS进行数值模拟。结果表明:烟气在35s时对隔层人员产生危害性,高温在200s时对2号和3号门的人员造成伤害,CO毒性在整个火灾过程中不具备致命性,火灾前期能见度成为人员能否及时疏散的关键因素;通过HVCHT模型得出在火灾中后期烟气温度所占危害性权重逐步增加,从42%上升至63%。

In order to accurately measure the actual damage caused by smoke,presents a comprehensive consideration of temperature,visibility,fire and smoke damage smoke toxicity evaluation HVCHT models.Duplex apartment in Yunnan Province as an example,the numerical simulation based FDS,the results showed that：in the 35 s when the flue gas generated compartment staff dangers of high temperatures in the 200 s during the 2nd and the 3rd door staff harm,CO toxicity in the whole fire does not have a fatal course,visibility is a key factor in the early fire personnel timely evacuation through HVCHT model derived heavy fire in the late gradual increase in share of dangers rights flue gas temperature,the proportion rose from 42％ to 63％ in the late draw fire personnel burn process increases the likelihood.