1.變壓式：這種管道將各層的煙道做成不同的截面形式，下層煙道通過主次煙道排氣，而靠近屋面的煙道如同單煙道的作用，直接將油煙排入煙道排出。

　　1. transformer: this pipeline flue of each layer made of different section forms, the lower the flue through primary and secondary flue gas, and close to the roof like a single flue flue, directly discharged into the flue exhaust fumes.

　　原理：山東通風管道加工通過改變煙道的截面形式，利用煙氣流動的各種物理規(guī)律，使氣流保持向上的運動，大程度防止煙氣倒灌和互串。

　　Principle: by changing the cross section form of the flue gas, using the various physical laws of the smoke flow, the airflow can keep upward movement, so as to prevent smoke from flowing backward and crossing each other to the greatest extent.

　　2.單煙道式：這種管道由一個簡單的矩形煙管構成，垂直穿越各層住宅，在每層住宅中留有一個連接抽油煙機的進風口，底層由一個補風口補氣。

　　2. single flue type: this pipeline consists of a simple rectangular smoke pipe, vertical through each layer of residential, in each layer of the house, there is an air intake hood to connect the hood, and the bottom is filled by an air supply.

　　原理：各層煙氣在抽油煙機的推動下，將油煙排入煙道中，由于煙氣溫度的作用，在煙道中產(chǎn)生上升浮力，從出屋面的出風口將煙氣排出。

　　Principle: the smoke of each layer is pushed into the flue under the drive of the range hood, and the rising buoyancy is generated in the flue due to the function of the flue gas temperature, and the flue gas is discharged from the air outlet of the roof.

　　3.止逆閥式：止逆閥式煙道則是在單管煙道上的各層進風口處，加裝一個兼有抽油煙機接口作用的復雜防氣流逆行的止逆閥，迫使煙氣向煙道單向運動，從而解決煙氣互串的問題。

　　3. check valve type: check valve type flue is each layer in a single tube flue of the air inlet, with a combination of lampblack machine interface complex anti retrograde flow check valve, forcing the smoke to the flue way, so as to solve the problem of flue gas on each other.

　　4.主次式：這種管道由一個簡單的矩形煙管構成，垂直穿越各層住宅，在每層住宅中留有一個連接抽油煙機的進風口，底層由一個補風口補氣。

　　4. primary and secondary style: this pipeline consists of a simple rectangular smoke pipe, vertical through each layer of residential, in each layer of the house, there is an air intake hood to connect the hood, and the bottom is filled by an air supply.

　　原理：各層煙氣在抽油煙機的推動下，將油煙排入煙道中，由于煙氣溫度的作用，在煙道中產(chǎn)生上升浮力，從出屋面的出風口將煙氣排出。

　　Principle: the smoke of each layer is pushed into the flue under the drive of the range hood, and the rising buoyancy is generated in the flue due to the function of the flue gas temperature, and the flue gas is discharged from the air outlet of the roof.

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