Discussion on pressure release in existing smoke control scheme with pressurised air supply

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.