防烟分区控烟效果影响因素分析  

Analysis of factors affecting the smoke control effect of smoke partitions

作　　者：王梓蘅 李青[1] 

机构地区：[1]中国人民武装警察部队学院,河北廊坊065000

出　　处：《消防科学与技术》2016年第5期626-630,共5页Fire Science and Technology

基　　金：国家自然科学基金资助项目(51278493)

摘　　要：基于《建筑防烟排烟系统技术规范》(送审稿),根据NFPA 204(2012)中火灾烟气层高度计算模型,研究中速火和快速火条件下不同净高和防烟分区面积对烟气层厚度的影响。结果表明,不同火源类型和建筑净高的组合都对应着一个有效控烟的临界防烟分区面积。若建筑中防烟分区面积大于该临界值则能达到有效控烟的目的;反之,则需要根据烟气层厚度适当调整挡烟垂壁高度以改善控烟效果。研究结果可为建筑防烟分区面积和储烟仓高度的确定提供参考。Based on the Technical Code for building smoke control and smoke management system （draft）, smoke control effect in public buildings with different height and smoke partition area under the condition of medium speed fire and rapid fire were respectively studied with fire smoke layer height calculation model according to NFPA 204 （2012）. The results showed that, each combination of building height and fire type corresponds to a critical area of smoke partitions. If the smoke partition area in the building is greater than the critical value, the purpose of smoke control can be reached. Otherwise, the smoke hanging wall height may need appropriate adjustments according to the thickness of smoke layer to improve the control effect. All the research above can give some reference to the determination of smoke partition area and height of smoke storage storehouse in public buildings.

关 键 词：防排烟设计 防烟分区 空间净高 挡烟垂壁 控烟效果 

分 类 号：X924.4[环境科学与工程—安全科学] TU834.2[建筑科学—供热、供燃气、通风及空调工程]