高层建筑防排烟研究（3）：再论“当量流通面积”流量分配法在加压送风量计算中的应用
High rise building smoke control and extraction (3):Re-discussion on application of flow distribution method of equivalent circulation area to calculation of pressurized air supply
摘要：
笔者在《“当量流通面积”流量分配法在加压送风量计算中的应用》一文中提出“当量流通面积”流量分配法在实际运用中遇到的障碍是内走道的背压问题，这也是防排烟规范中存在的主要问题。本文从理论上和谋略上解决了内走道的背压问题，推导出了各气流通路的当量流通面积及加压送风量的计算模型，并结合实例进行了计算。
Abstract：
In the article Application of flow distribution method of equivalent circulation area to calculation of pressurized air supply, the author puts forward the back pressure problem existed in inner aisle in application of the flow distribution method of equivalent circulation area, which is also the principle problem existed in smoke control standards. This paper solves the back pressure problem of the inner aisle from the aspects of theory and strategy, derives the equivalent circulation area of different air passages and the calculation model of pressurized air supply rate, and carries out the demonstration calculation with an example.
Keywords:pressurizedairsupply,equivalentcirculationarea,flowdistributionmethod,highrisebuilding,smokecontrolandextraction,theoryandstrategy