前室机械防烟系统设计探讨

在建筑的防排烟系统中，前室的防烟对于保证人员的安全疏散和顺利的消防扑救相当重要。文章时前室防烟的理念做了阐述，明确前室机械加压送风系统在火灾时只应开启着火层的送风口、针对我国及上海市现行的建筑防排烟规范，文中通过实例时前室机械防烟系统不同的送风量计算方法进行了对比分析。

Discussion of Design on Mechanical Smoke Protection System in Lobby

Among the smoke control system in building, smoke protection in lobby is very important for ensuring safety evacuation and convenient fire fight. This article expatiate on the concept in lobby smoke protection, point out that in the mechanical pressurization system only the pressurization outlet in the fire layer should be opened when fire happening. Based on the existing code for building smoke control in China and in Shanghai, an example be given in the article to compare and analyse the different air supply volume calculation methods in lobby mechanical smoke protection system.