What are the regulations for the air volume of the exhaust fan?
With high-rise building with a staircase and its front room, fire elevator front room or the combination of the former room, when the skirt above the site can be used to open the outer window for natural smoke, podium part does not have natural exhaust conditions , The former room or the combination of the former room should be set up local mechanical smoke facilities, the smoke from the front room per square meter of not less than 60m3 / h basis.
When the volume of the atrium is less than 17,000 square meters, the amount of smoke is calculated according to the volume of 6 times / h; Smoke should not be less than 102000m3 / h
Bear two or more smoke partition smoke, should be the largest smoke partition area per square meter of not less than 120m3 / h basis.
For a smoke-free partition or smoke clearance height greater than 6.0m non-smoke partition of the room, should be based on the area per square meter of not less than 60m3 / h (single fan minimum smoke should not be less than 7200m3 / H
