High rise building smoke control and extraction (2): Study on division of high rise building pressurization air supply systems

Determines that the antechamber or common antechamber should be taken as the best pressurization part in high rise building smoke control and extraction through optimization. Compares the mechanical pressurization smoke prevention facility and the natural smoke extraction and prevention facility, and considers that the former is better. With the best pressurization part—antechamber or common antechamber, and the mechanical pressurization smoke prevention facility, forms a mechanical pressurization smoke prevention system which only pressurizes the antechamber or common antechamber.