高层建筑安全核区域防排烟技术探讨  

Study on the technology of smoke control in safe core of high-rise buildings

作　　者：张靖岩[1] 霍然[1] 王浩波[1] 冯瑞[1] 

机构地区：[1]中国科学技术大学火灾科学国家重点实验室,合肥230026

出　　处：《中国安全生产科学技术》2006年第1期10-15,共6页Journal of Safety Science and Technology

基　　金：国家自然科学基金(编号:50376061);国家重点基础研究发展规划专项经费(项目编号2001CB409604)资助

摘　　要：本文在某高层安全核区域设计了一系列现场实验,通过送风系统和机械排烟的不同开启、关闭组合方式,定性判断送风与排烟的相互作用。结果显示：在送风量略大于排烟量的前提下,烟气层能够稳定在一定的高度,对人员的安全疏散是最有利的。因此,本文提出在满足楼梯间及其前室足够正压值的前提下,改造现有的送风系统,利用多余的正压值进行补气,以优化高层建筑内的防排烟效果。In this paper, some experiments were. carried out to estimate the reciprocity between them in quality through the different operation manner including ＂opening＂ and ＂closing＂ in a high-rise building. It is shown that the layer height can maintain a constant when the air supply is just more than the smoke exhaust, which is advantaged to evacuation. In this paper, a new method is introduced that the ahered pressurization system can be used to support the air supply when the pressurization in stairwell and its atria are enough. Thus, the smoke protection design is optimized.

关 键 词：安全核 烟气流动 加压送风 机械排烟 

分 类 号：TK121[动力工程及工程热物理—工程热物理]