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以防烟楼梯间和前室 加压送风量的组成为出发点，分析了影响加压送风的气流组织通路和开门工况等诸多因素，推导了常用加压送风方式下的送风量的计算公式。
Taking the composition of anti-smoke staircase and front room pressurized air supply as the starting point, the paper analyzes the air flow path and the conditions of open door that affect the pressurized air supply, and deduces the quantity of air supply under common pressurized air supply The formula.