防烟楼梯间是指在楼梯间入口处设有防烟前室、开敞式阳台或凹廊（统称前室）等设施，且通向前室和楼梯间的门均为防火门，以防止火灾的烟和热气进入的楼梯间。
所有防烟楼梯间及消防电梯前室均设正压送风系统。
Before all against smoke stair hall and the fire lift, the room supposes the positive pressure blast system.
就防烟楼梯间及前室正压送风系统区域烟控模型的算法进行了介绍。
The smoke control model is an important tool to have a smoke control research.
对闽桥大厦地下室排烟、排风、防烟楼梯间及其前室、消防电梯前室的排烟设计分析比较；介绍空调水系统中电动两通阀的应用。
This paper analyzes several proposals of air exhaust and smoke exhaust in highrise building basement, and briefly introduces electric valves in application of aircodition water system.
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