With the development of society, many kitchens in family residences emit fumes from their windows, which leads to cooking downstairs and smoking upstairs. Therefore, when family decoration, kitchen flue decoration is very important. Once unreasonable, it will form a bad taste phenomenon, which will have an impact on home life.

　　1)通風管道

　　1) Ventilation Pipeline

　　通風管道本體、結構、固定資料、密封資料及柔性接頭有必要選用不燃資料制造。當吊頂內有可燃物時，吊頂內的通風管道應選用不焚燒資料進行隔熱，并應與可燃物堅持不小于150mm的間隔。

　　The main body, structure, fixed data, sealing data and flexible joints of ventilation pipelines need to be manufactured with non-combustible data. When there are combustibles in the ceiling, the ventilation pipes in the ceiling should be insulated by non-incineration data, and should be not less than 150 mm apart from the combustibles.

　　2)正壓送風管道

　　2) Positive Pressure Air Supply Pipeline

　　送風管道應選用不焚燒資料制造，當選用金屬風道時，管道風速不該大于20m/s;當選用內外表光滑的混凝土等非金屬資料風道時，不該大于15m/s.

　　The air supply pipeline should be manufactured with non-incineration data. When the metal duct is selected, the wind speed of the pipeline should not be greater than 20m/s, and when the non-metallic material duct such as smooth concrete with inner and outer surfaces is selected, it should not be greater than 15m/s.

　　山東通風管道

　　Shandong Ventilation Pipeline

　　當加壓送風管穿越有火災可能的區域時，風管的耐火極限應不小于1h.送風井道應選用耐火極限不小于lh的隔墻與相鄰部位分隔，當墻上有必要設置檢修門時應選用丙級防火門。

　　When the pressurized air duct passes through the area where fire is possible, the fire resistance limit of the air duct should not be less than 1h. The partition wall with fire resistance limit not less than LH should be selected for the air duct and the adjacent parts should be separated. When it is necessary to install an overhaul door on the wall, the third-class fire door should be selected.

　　3)通風空調

　　3) Ventilation and air conditioning

　　通風空調體系的管道等應選用不燃資料制造。

　　Ventilation and air conditioning system pipes should be manufactured with non-combustible materials.

　　山東通風管道觸摸腐蝕性介質的風管和柔性接頭，可選用難燃資料制造。復合資料風管的覆面資料有必要為不燃資料，山東通風管道的絕熱資料應為不燃或難燃B1級，且對人體無害的資料。

　　Shandong ventilation duct touches the air duct and flexible joint of corrosive medium, and can be manufactured with non-flammable materials. It is necessary for the cover data of composite data duct to be non-flammable. The insulation data of Shandong ventilation duct should be non-flammable or non-flammable grade B1 and harmless to human body.

　　關于通風管道的制造和裝置有什么要求?

　　What are the requirements for the manufacture and installation of ventilation ducts?

　　1)風管水平裝置，其直徑或長邊尺度小于400mm時，距離不該大于4m;大于或等于400mm時，距離不該小于3m;

　　1) The distance should not be greater than 4 m when the diameter or length of the horizontal device is less than 400 mm, or less than 3 m when the diameter or length of the horizontal device is greater than or equal to 400 mm.

　　2)風管筆直裝置，距離不該大于4m，但每根立管的固定件不該少于2個。

　　2) The air duct should be straight, and the distance should not be greater than 4m, but the fixed parts of each riser should not be less than 2.

　　2.機械防排煙體系的矩形風道的接縫應選用咬口方式，接縫處須堅持密封。

　　2. The joint of rectangular air duct of mechanical smoke control and exhaust system should be sealed by biting method.

　　3.送風、通風管道的單位面積答應漏風量應契合《通風與空調工程施工質量檢驗標準》GB50243中的規則。送風管道答應漏風量應根據工作壓力斷定;通風管道均按中壓體系的規則。

　　3. The allowable air leakage per unit area of air supply and ventilation pipes should conform to the rules of "Quality Inspection Standard for Ventilation and Air Conditioning Engineering Construction" GB5024 3. The air leakage allowed by the air supply pipeline should be determined according to the working pressure, and the ventilation pipeline should be determined according to the rules of medium pressure system.