What is the standard for cleaning oil fume pipes? How long is it?

Cleaning standard of lampblack pipeline

The cleaning standards for oil fume pipes are as follows: after cleaning the fume hood flue, 90% of the original inner wall of the flue can be seen without blockage and stubborn oil pollution; The surface of the stove is clean and bright; 90% can see the surface of the fan impeller; There is no precipitated oil stain at the bottom of the motor; There is no oil pollution and stubborn oil pollution outside the pipeline. The above is Bian Xiao's introduction to the cleaning methods and key cleaning places of the oil fume pipeline, hoping to help those who want to clean the oil fume pipeline.

Cleaning time of lampblack pipeline

The heavy oil fume in the oil fume pipeline will be deposited at the elbows of the vertical flue and the horizontal flue, and a very small part of the oil fume will stay on the inner wall of the vertical flue and will not be formed at the same time. If the oil fume pipeline has not been cleaned for more than half a year, the external vertical flue can not be cleaned temporarily, because the lighter oil fume has been sucked away by the fan. For the oil fume pipeline that has not been cleaned for more than half a year, only the flue elbow needs to be cleaned. Under normal circumstances, it is recommended to clean the oil fume pipeline once every six months.