What to do if the kitchen flue smells

Changing the flue fire damper will do.

Find the fork, the one that should be blocked, the one that should be blocked, and the one that should be diverted.

Kitchen flue smell transfer principle:

When a resident discharges the fume to the common flue, the fume has a higher pressure than the atmosphere, it will expand in the common flue, and when the expanded pressure is still higher than the atmospheric pressure, it will move to produce airflow, and the airflow is released from the roof flue mouth when the smoke damper of each household is tightly closed. If it passes through a poorly closed damper during expansion and movement, it is released from this vicinity, which is the backflow of oil smoke.

Install flue check valves to prevent kitchen flue odor transfer.

Because most of the home users do not know the use of the check valve, the key product in the vertical centralized exhaust gas system of the residence, and do not know whether there is a good check product, there will be the problem of smoke backflow after moving in, so after the decoration is completed, they find that their kitchen does not cook and there is also the smell of cooking smoke on other floors. The smell of oil smoke is not only unpleasant, but also contains toxic chemicals such as carbon monoxide and benzopyrene, once the fire spreads through the public flue, the consequences are more terrible, not only endangering human health, family life and property safety, but also shortening the service life of household appliances.

Therefore, the kitchen should be installed flue check valve to prevent the air flow retrograde, forcing the flue gas to the one-way movement of the flue, one is to facilitate the discharge of indoor fumes, and the other is to prevent the outdoor fumes from backing up, back to the kitchen, polluting the indoor environment, and must ensure that the check valve is installed firmly, and the wall is close and seamless.

The smoke check valve is fundamentally different from the oil exhaust structure of the traditional range hood. The traditional range hood adopts the in-line oil exhaust method, which inevitably produces the phenomenon of oil smoke return. When the range hood is working, its wind power will lift the smoke cap, and its own oil smoke will be discharged from the side of the smoke cap; When the range hood stops working, the hood will automatically fall down, and the flue mouth is tightly sealed.

In this way, the fumes (smells) in the flue will never return.