软质挡烟垂壁是地下与大空间建筑防排烟系统中的关键设备。平时 ,挡烟帘布卷绕在专用电动滚筒上并置于装饰吊顶内 ,当消防控制中心发出火警信号或接受烟感、温感信号后 ,挡烟垂壁在电动滚筒的驱动下垂落 ,以形成若干烟区分隔 ,然后排烟风机将高温烟气迅速排出室外 ,为人员的疏 Soft smoke retaining wall is underground and large space building smoke control system in the key equipment. Normally, the smoke curtain wrapped around a dedicated drum motor and placed in the decorative ceiling, when the fire control center to send a fire alarm signal or smoke sensation, temperature sensing signal, the smoke curtain hanging down in the electric drum driven to form A number of smoke zones separated, and then the exhaust fan will quickly exhaust high-temperature smoke outdoors, for personnel sparse