对现行加压送风防烟方案泄压问题的分析与探讨
Discussion on pressure release in existing smoke control scheme with pressurised air supply
摘要：
对现行泄压法以开门时和关门时的风量差（Lv-Ly）作为泄压与选择泄压装置的依据存在的问题作了分析，提出了以推门力作为判定依据；以关门时疏散人员能安全进入正压间为目标，对四种加压送风防烟方案按不同情况分别采取了综合性对策措施，并对综合性对策措施进行了计算和论证，并得出了结论。
关键词：推门力,开启力矩,正压力推门力矩,自平衡能力,防火门左右扇反向
Abstract：
Analyses the problem in existing pressure release method in which pressure release and release valve choosing depend on the air flow volume difference between opening and closing the door. Puts forward that the force of pushing door shall be used as the determining criterion. With a target of ensuring people to go into the positive pressure room safely when the door is closed, takes integral measures in different conditions for four kinds of smoke prevention schemes of pressurised air supply, calculates and demonstrates the integral measures, and obtains the conclusion.
Keywords:door pushing force，open moment, positive pressure moment of pushing door, selfbalancing ability, opposite direction of left and right fire door