通风管道得安装位置怎样更合理？

发布人：http://www.sftfgd.com   发布时间：2024-01-21 13:19:55

　　通风管道得安装位置怎样更合理？

　　How is the installation position of ventilation ducts more reasonable?

　　设置在高层建筑内的通风排烟管道设施，应具备以下要求：

　　Ventilation and smoke exhaust duct facilities installed in high-rise buildings should meet the following requirements:

　　（1）排烟口应设在顶棚上或靠近顶棚的墙面上，且与附近出口沿走道方向相邻边缘之间的水平距离不应小于1.50m。设在顶棚上的排烟口，距可燃构件或可燃物的距离不应小于1.00m。

　　(1) The smoke exhaust outlet should be located on the ceiling or on the wall near the ceiling, and the horizontal distance between it and the adjacent edge of the nearby safety exit along the aisle direction should not be less than 1.50m. The distance between the smoke exhaust outlet installed on the ceiling and combustible components or materials should not be less than 1.00m.

　　排烟口平时关闭，并应设置有手动和自动开启装置。

　　The smoke exhaust outlet should be closed normally and equipped with manual and automatic opening devices.

　　（2）防烟分区内的排烟口距远点的水平距离不应超过30m。

　　(2) The horizontal distance between the smoke exhaust outlet in the smoke prevention zone and the farthest point should not exceed 30m.

　　在排烟支管上应设有当烟气温度超过280℃时能自行关闭的排烟防火阀。

　　A smoke exhaust fire damper that can close automatically when the smoke temperature exceeds 280 ℃ should be installed on the smoke exhaust branch.

　　（3）排烟风机可采用离心风机或采用排烟轴流风机，并应在其机房入口处设有当烟气温度超过280℃时能自动关闭的排烟防火阀。排烟风机应保证在280℃时能连续工作30min。

　　(3) The smoke exhaust fan can be a centrifugal fan or an axial flow smoke exhaust fan, and a smoke exhaust fire damper that can automatically close when the smoke temperature exceeds 280 ℃ should be installed at the entrance of the machine room. The smoke exhaust fan should be able to operate continuously for 30 minutes at 280 ℃.

　　（4）机械排烟系统中，当任一排烟口或排烟阀开启时，排烟风机应能自行启动。

　　(4) In a mechanical smoke exhaust system, when any smoke exhaust outlet or smoke exhaust valve is opened, the smoke exhaust fan should be able to start on its own.