大面积建筑防排烟性能化设计

The Performance-based Design on a Smoke Extraction System of Construction with Large Area Space

建立了一个理想的商场模型,根据相关条件,首先说明防排烟原理,结合规范对防烟分区合理划分,选择合适的排烟方式,即自然排烟与机械排烟结合。通过对排烟量、烟气温度的计算,设计合理的蓄烟拱高度、宽度,自然排烟口的面积等。同时对排烟风机的设置要求、排烟口的设置位置,提出了合理化的建议。

This paper builds up an ideal market model,explains the principle of ventilating smoke according to the related conditions,chooses suitable smoke controlling methods,namely the combination of the natural smoke control and the machine smoke control.According to the calculation of the amount of smoke,the smoke air temperature,this paper offers designs reasonable of the smoke arch height,the width,the area of windows for ventilating smoke,etc.Meanwhile,it makes the suggestions for the rationalization to the position of the constitution oscula,the requisition of mounting of the smoke machine.