通风管道在安装时的注意事项：
Precautions for ventilation pipes during installation:
（1）当风管与风机连接时，应在进出风口处加软接头，其软接头的断面尺寸应与风机进出风口一致。软管接头一般可采用帆布、人造革等材料，软管长度不宜小于200，松紧度应适宜，柔性软管可缓冲风机的振动。
(1) when the wind pipe is connected with the fan, the soft joint should be added at the inlet and outlet. The section size of the soft joint should be the same as the fan inlet and outlet. Hose joints usually use canvas, artificial leather and other materials, the length of the hose should not be less than 200, the tightness should be suitable, flexible hose can buffer the vibration of the fan.
（2）当风道与除尘设备、加热设备等连接前，应待设备安装完毕后，按实际测绘的图纸进行预制和安装。
(2) before the wind tunnel is connected to the dust removal equipment and heating equipment, the equipment should be prefabricated and installed according to the actual drawings.
（3）风道安装时，进、出风日宜在风道预制时开出洞口，如需在安装完毕的风道上现开风口，其接口处应严密。
(3) air duct installation, into and out of the open hole in the air duct should be prefabricated, if installed in the air duct on the open air, the interface should be tight.
（4）当输送含凝结水或含湿量较大的气体时，其水平管道宜设有坡度，并在低点处接排水管。安装时风道底部不宜出现纵向接缝，对底部有接缝处应进行密封处理。
(4) when transporting condensed water or gas with a large moisture content, the horizontal pipe should have a slope and a drainage pipe at the low point. The longitudinal joint should not appear at the bottom of the air duct when the installation is installed, and the seams at the bottom should be sealed.