The obstacles to installing smoke curtain in Jinan kitchen have been cleared, and the ground has no obstruction to the construction of debris. It has the characteristics of light weight, high strength, no combustion, sound insulation, heat insulation, moisture proof, water resistance, long service life and so on. It is a new generation of energy-saving and environmental protection green products. Magnesium glass composite duct is mainly used in building, decoration, fire protection and other fields, especially in restaurants, hotels, shopping malls and other crowded places, as well as basement, civil air defense, mines and other humid environmental engineering.
Kitchen exhaust should avoid a large amount of air in the air-conditioned space being pumped away. Natural ventilation and mechanical ventilation should be avoided. Natural ventilation and mechanical ventilation should consider the path of fresh air to avoid dead areas, so as to facilitate the extraction of indoor polluted air. Mechanical air supply shall be carried out through air ducts and air outlets. Pipeline system should not be complicated and local wind speed should be avoided. Fresh air supply should account for 70-80% of the exhaust air.
Because the structure of the kitchen is different from the position of the kitchen in the building, the conditional kitchen should be provided orderly by the central air conditioning system of the building. But most of today's situations are buildings without kitchen air supply systems. Many buildings with restaurants, kitchens and so on have only designed central heating system, but no central air conditioning system. When the kitchen is in working state, the exhaust system is put into operation, and the kitchen is in negative pressure state. The sources of fresh air include the infiltration of outdoor fresh air and the large amount of air from restaurant to kitchen.
The air conditioner in the kitchen is broken. By extracting a small amount of air-conditioned air from the front lobby to allow the chef to bathe directly in the form of a nozzle in the wind, it can improve the high temperature caused by poor working conditions in the kitchen in summer baking oven. The distribution of harmful gases, vapors and dust in the workshop is considered in the design of local smoke exhaust fire hose. The outdoor air is directly discharged from the source by the local smoke exhaust system.
The local exhaust system consists of a local exhaust hood, a fire exhaust pipe, a ventilator, a dust or harmful gas purification device and an exhaust device. When hazardous gas, vapor or dust is larger than the ark in the exhaust gas treatment, you can use one side to open, the other parts of the face to seal the exhaust hood, or the parties can not close the exhaust hood, or the upper exhaust hood, exhaust, unilateral exhaust and suction tank side blowing all forms of exhaust.