1、真空吸污。主要的清洁器具是手握式的真空吸污管，具体操作办法为，用刷子直接接触管道内壁来清洗。但是使用这种方法要有足够大的检修孔让清洗人员进行操作。在清洗的时候由于风管不能形成完全的负压条件，很有可能会漏掉一部分污物。

1. Vacuum suction. The main cleaning equipment is the hand type vacuum suction pipe, the specific operation method is to use the brush directly to contact the inner wall of the pipe to clean. But the use of this method should have large enough overhaul holes for the cleaning personnel to operate. In the cleaning, it is possible to leak a part of the dirt because the pipe can not form a complete negative pressure condition.

2、动力毛刷。清洁的主要动力来自气动和电动，从管道内壁清洗下来的污物被吸收到真空容器中。用这种清洗方法尽量不要破坏管道内的保温材料。

2, power brush. The main driving force for cleaning comes from pneumatic and electric, and the dirt washed from the inner wall of the pipe is absorbed into the vacuum vessel. Use this cleaning method as far as possible not to destroy the insulation in the pipe.

3、气体冲洗。主要是用来输送压缩空气，将尘土和污物驱赶出风管。

3. Gas flushing. It is mainly used to transport compressed air and drive out dust and dirt out of the wind pipe.