How to solve the kitchen exhaust pipe smoke back down

Install a check valve.

The check valve flue is to install a complex anti-airflow retrograde check valve with the function of the range hood interface at the air inlet of each layer on the single-pipe flue, forcing the flue gas to move in one direction to the flue, so as to solve the problem of flue gas interconnection, but this practice will slightly affect the smoke exhaust effect of the range hood.

Flue check valves are generally used in the exhaust flue of range hoods at home, including range hood check valves, plastic telescopic smoke pipes and flue check valves.

The range hood check valve is also called the name of air outlet, exhaust outlet and air hood, etc., it is the range hood comes with, the bottom is fixed on the top of the range hood with screws, and the upper part is connected to the plastic telescopic smoke pipe. There are generally two baffles inside the range hood check valve, but because the traditional smoke machine check valve has the problem of the baffle plate is not tightly sealed (no matter how high-end the hood), there is a problem of the aftertaste of the range hood. Different brands or models of hoods are likely to be equipped with different range hood check valves, and there is no unified industry standard.

However, the caliber of the plastic retractable smoke pipe is basically divided into four types: 18cm, 17cm, 16cm and 15cm.

It is composed of a simple rectangular smoke pipe, which runs vertically through each floor of the house, leaving an air inlet connected to the range hood in each floor of the house, and the ground floor is supplemented by a air outlet. The principle is that each layer of flue gas is driven by the range hood to discharge the fume into the flue, and due to the effect of the flue gas temperature, the rising buoyancy is generated in the flue, and the flue gas is discharged from the air outlet of the roof. Either add a pointed head cover on the top of the smoke outlet, like a rocket head, but not seal, and make a circle opening at the neck of the rocket, so that the wind can not only rush into your smoke pipe, and if it doesn't work, add an exhaust fan in the middle.

It is equivalent to taking an electric fan and installing it in reverse, and the side of the blowing air is installed outside

Either add a pointed head cover on the top of the smoke outlet, like a rocket head, but not seal, and make a circle opening at the neck of the rocket, so that the wind can not only rush into your smoke pipe, and if it doesn't work, add an exhaust fan in the middle. It is equivalent to taking an electric fan and installing it in reverse, and the side of the blowing air is installed outside