When setting a fire outlet position for fire smoke, there are the following points to pay attention:
1. The exhaust port should be located in the storage cigarette warehouse and should be set up close to the ceiling.This can ensure that the distance between the tobacco port and the ceiling is closer to reduce the obstacles of smoke exhaust.
2. When the exhaust port is located in the ceiling and smoke through the upper space of the ceiling, the ceiling should be used for non -combustible materials, and there should be no combustible materials in the ceiling.This prevents the burning of ceiling materials from having harmful gases or smoke during fire.
3. If the tobacco port is set on a non -closed ceiling, the opening rate should not be less than 25%of the net area of ??the ceiling, and the hole should be evenly arranged.This can ensure the circulation of air inside the ceiling and improve the smoke exhaust effect.
4. If the smoke exhaust port is set in the aisle and the room with a net empty height in the room is not more than 3m, the tobacco outlet can be set at more than 1/2 of its net air height, but for the sideline vents set at the side wall, the edge distance of the edge of the surface surface isThe ceiling distance should not be greater than 0.5m.This can ensure that the air in these spaces can be discharged smoothly by the smoke outlet.
5. The smoke outlet should be far away from the safety export (or evacuation export) of the personnel, and the horizontal distance between the tobacco outlet and the safe export (or evacuation export) shall not be less than 1.5m.This can prevent the discharged smoke from affecting the evacuation of the personnel.
6. The amount of smoke and wind speed of each smoke outlet should meet the following requirements: the amount of smoke of each smoke outlet should not be greater than the larger allowable smoke volume, and the amount of allowable smoke should be allowed to be according to GB51251-2017 No. 4.6 4.6 4.6.The regulations of Article14 are calculated and determined; in addition, the wind speed of the tobacco outlet should not be greater than 10m/s, and the anti -jam school check should be performed.This can ensure that the air volume of each smoke is moderate, which can discharge the smoke in time without affecting the personnel.
The above is the matters that need to be paid attention to when setting the smoke exhaust port position of the fire exhaust fan, including the requirements of the tobacco storage tank, the ceiling material requirements, the opening rate requirements, the aisle and indoor net empty height.
The above is the precautions for setting up the position of the smoke exhaust port of the fire exhaust fan