Z值及防烟分区对高大空间排烟系统的影响分析

The impact and analysis of Z value and smoke bay on the large space purging system

分析了空间净高大于9 m的空间燃料面到烟层底部的高度即Z值对排烟量的影响,比较了净高大于9 m且单个防火分区超过2 000 m2的高大空间不划分防烟分区和划分防烟分区排烟系统的差异,提出了对于这类空间机械排烟系统的建议。

The paper analyses that Z value have great impact of the smoke exhaust rate on the large space which is more than nine meters in height,compares the differences of smoke evacuation system between the two ideas which is whether to divide smoke bay in a large space,the large space is more than nine meters in height and more than two thousand square meters in area,and puts forward a suggestion at this kind of smoke evacuation system.