高层建筑加压防烟设计主要问题研究

A Research of the Design of Smoke Prevention by the Increasing Pressure in a High-rising Building

从设计环节出发,针对加压防烟设计中出现频率较高的风机压头、风道内壁的绝对粗糙度、竖向风道断面长宽比、断面风速选择、风机特性选择等几个主要问题进行了分析,并提出应对措施,为今后的加压防烟设计提供参考。

Based on the design of smoke prevention by the increasing pressure,the fan pressure-head,the absolute roughness of the inner side of the duct,the ratio of length-width and the wind velocity in vertical duct section,the fan characteristics and some other issues in the design of smoke prevention by the increasing pressure,this paper puts forward measures for the design of the system.to provide some reference for the design of smoke prevention by the increasing pressure.