高层建筑正压送风系统风量风压值的实验研究  

Experimental Research of Pressurization in Staircase of High-Rise Buildings

作　　者：李贵文 李德志 

机构地区：[1]中国建筑科学研究院建筑防火研究部

出　　处：《建筑科学》1994年第4期21-26,共6页Building Science

摘　　要：关于高层建筑防烟楼梯间的正压值和送风量各国都极为关注。一些国家规范中都有规定。我国《高层建筑设计防火规范》修订后，在“报批稿”上，将正压值规定为５０Ｐａ（关门时），而送风量规定了一个范围。本实验研究的立意就是为制定有关法规提供些科学依据。本课题从立项、实验室建设，实验设施、仪表的配备到现场实测，实验室测试，取得了风速、风压值近一万个数据，通过整理回归成一些曲线图（即图解法），并与通常采用的压差法、风速法计算的风量对比，得到了初步验证，对高层建筑的正压送风系统作了一次有益的尝试。The Values of the pressure differential and supply air volume in the smoke preventionstaircase of high-rise building are of much concern and also the values are stipulated in codes ofsome countries. In the revised'National Fire Code in the Design of High-Rise Buildings',thepressure differential is stipulated for 50Pa, but the supply air volume is assigned within a certainrange. The goal of research is to provide scientific basis for formulating codes. After measurementin laboratory and on site,about 10000 values of air velocitv and air pressure are obtained and thenseveral curves are regressed.The experimental results are proved compared with the value of airvolume calculated by traditional pressure differential method and air velocity method.

关 键 词：高层建筑 正压送风系统 风量 消防 实验 

分 类 号：TU976.5[建筑科学]