When a hotel kitchen is in normal operation, a lot of garbage and lampblack will be produced. At this time, we designers need to consider how to discharge garbage and how to discharge kitchen fume to minimize the impact on the environment around the hotel, that is, how to design smoke exhaust pipes.
1. Due to the different structure of the building where the kitchen is located and the location of the kitchen in the building, the centralized air conditioning system of the building should be used to supply air in the kitchen with conditions. But at present, most of the situation is that there is no kitchen air supply system in the building. Many buildings with restaurants, kitchens and so on have only designed central heating system without central air conditioning system. When the kitchen is in working state, the exhaust system is put into operation, and the kitchen is in a negative pressure state. The fresh air sources include outdoor fresh air infiltration and large amount of air from dining room.
2. In order to ensure the purification effect, in the actual design, the exhaust air volume should be calculated in strict accordance with the suction wind speed of the exhaust hood, and the suction speed of the hood mouth is usually not less than 0.5m/s.
3. The air supply system adopted by Jinan hotel kitchen smoke exhaust installation personnel should be DC mode, and the kitchen ventilation system should adopt variable speed fan or associated fan for air supply and exhaust. Air supply and exhaust outlet arrangement: the arrangement of air supply and exhaust outlets in the kitchen should be considered according to the specific position of the stove, and the air supply jet should not disturb the ventilation performance of the stove. When determining the outlet wind speed of the air supply outlet, the regional wind speed is about 2m away from the ground.
The horizontal section of smoke exhaust pipe should not be too long. Generally, the maximum horizontal distance should not be more than 15m, and there should be a slope of more than 2%. The horizontal end should be provided with a movable joint to facilitate the cleaning of oil dirt. The exhaust speed shall not be less than 10ms according to the specification, so as to prevent the oil from adhering to the flue due to too low wind speed. The branch pipe connecting the exhaust hood shall be equipped with air volume regulating valve. 上一篇：济南通风管道设备的优势在何处