Why should the smoke exhaust system in the canteen kitchen be cleaned regularly?

The oil fume exhaust system in the school canteens of hotels, restaurants, enterprises and institutions includes: smoke hood, smoking room, transverse flue, longitudinal flue, oil fume separation purifier and fan.

Why do you need regular cleaning?

The hood is located above the stove and is generally made of stainless steel and tinplate. When cooking below, the lampblack is everywhere, but because the fan is turned on, the lampblack directly gathers in the lampblack machine and enters the smoke room from the suction port. Over time, a lot of oil stains have been adsorbed on the hood, even the oil screen is dark, and the oil stains accumulated in the smoke room are unbearable to look straight at, and some are like mud; Some are thickly glued together; Some smoke rooms have water and oil, and the oil-water mixture drips on the chef's head and body along the smoke room, which is like rain in severe cases. This situation is particularly dangerous! I once went to a restaurant to clean the range hood, only to see the hall and kitchen in a mess. The kitchen was a mess, and it was dark everywhere. The smoking room was completely demolished, leaving only a dark empty hood. The reason is that a cook forgot to set fire to the oil pan when he passed by. After a long time, the oil caught fire, and the flame jumped on the range hood, igniting all the smoke rooms and flues. Usually the hotel owner doesn't pay attention to cleaning. After the fire, the boss didn't dare to look where there was a little oil. Cleaning the range hood and smoke room is not only beautiful, but more importantly, it eliminates fire hazards!

The reason for the hair dryer is that the fan impeller will be attached with a thick layer of oil for a long time, which will not only reduce the rotation speed but also affect the exhaust air volume. Many kitchens have poor ventilation effect, and the chef's hot feeling is also related to the thick oil on the fan impeller.

Cleaning the purifier is because the purifier has the function of purifying lampblack. Through the work of the purifier, the oil fume is directly adsorbed on the electric field of the purifier, and the discharged oil fume is not so big, so the air quality will be better, which is beneficial to environmental protection. If the purifier is not cleaned after being used for a period of time, the electric field of the purifier will not work normally, and it will be put there in name only, just like the deaf ears, and all the black smoke will be discharged! Extremely detrimental to health. Environmental inspection and residents' complaints are very troublesome. On the other hand, there is a uniform air net in the purifier. If it is not cleaned for a long time, the mesh of the uniform air net will be blocked by heavy oil, which will directly affect the ventilation and smoke exhaust effect of the whole smoke exhaust system like a wall.