摘要
在某地铁车站站厅和站台开展热烟实验,研究烟气流动情况,测量火灾时羽流及距离地面2 m高度处顶棚温度变化情况,在此基础上评价其排烟系统性能。结果表明,该车站内烟控系统能达到排烟目标;采用人员疏散出入口作为自然补风口,可避免烟气对疏散出入口的侵袭;在已建成建筑内采用受控的火源和烟源,用热烟实验方法可模拟真实火灾场景并测试排烟系统性能,也可以作为验证和评估大型复杂建筑内防排烟设计的手段。
The hot smoke test was carried out in the hall and platform of a subway station to study the smoke flow,and measure the temperature of plume and 2 m high above the ground near the ceiling during the fire,based on which the performance of smoke management system was evaluated.The results showed that the smoke management system in this station can reach the target of smoke venting;taking the evacuation gateway as natural secondary air opening can prevent the invading of the smoke;using fire and smoke source under control to carry out hot smoke test can simulate the true fire scene and test the smoke evacuation system,and it can help with the evaluation of smoke design in big and complex buildings.
出处
《消防科学与技术》
CAS
北大核心
2011年第10期878-880,895,共4页
Fire Science and Technology
基金
公安部消防局科研计划项目(2008XFCX025)
关键词
热烟实验
地铁火灾
烟气流动
排烟系统
hot smoke test
metro fire
smoke flow
smoke management system
