建筑室外烟流“短路”现象研究  

The research on“short circuit”phenomenon of building outdoor smoke exhaust system

作　　者：唐胜利[1] 卢国建[1] 胡忠日[1] 甘子琼[1] 

机构地区：[1]公安部四川消防研究所,四川成都610036

出　　处：《消防科学与技术》2014年第9期1019-1021,共3页Fire Science and Technology

基　　金：国家"十二五"科技支撑计划项目(2011BAK03B01);公安部四川消防研究所基本科研业务费专项项目(20118807Z)

摘　　要：针对建筑机械排烟系统中是否产生室外烟流"短路"现象,开展了一系列的实体火灾试验研究。通过对这些室外烟流"短路"实体火灾试验进行研究,得到了火灾烟气在室外机械排烟口和室外机械进风口出现烟流"短路"的几种情形,揭示了烟气在室外机械排烟口和室外机械进风口产生"短路"的规律。结果表明,排烟口和进风口的垂直距离和水平距离增加都会使进风口的温升减小,垂直距离影响较大。Against the ＂short circuit＂ phenomenon of building machinery exhaust systems,a series of fire tests were carried out.Through these outdoor plume ＂short circuit＂ fire tests,several types of ＂ short circuit＂ of outdoor mechanical air inlet port and exhaust plume were gotten,and the laws of ＂short circuit＂ were revealed.Results showed that the increase of vertical distance and horizontal distance will lower the temperature rise of air inlet port,and the influence of vertical distance is bigger.

关 键 词：室外排烟口 室外进风口 烟流短路 

分 类 号：X924.4[环境科学与工程—安全科学] TU834[建筑科学—供热、供燃气、通风及空调工程]