PRESSURE DIFFERENTIAL-TYPE SMOKE CONTROL SYSTEM HAVING EXHAUST DAMPER FOR ADJUSTING PRESSURE OF SUPPLEMENTARY AIR SUPPLY DUCT, AND OPERATION CONTROLLING METHOD FOR THE SAME

摘要

The present invention relates to a pressure differential-type smoke control system having an exhaust damper for adjusting the pressure of a supplementary air supply duct, and an operation control method thereof. In the pressure differential-type smoke control system which separates a leakage amount and a supplementary amount in an ancillary room, which is a smoke control area, of a high-rise building and supplies the air, since the pressure in the supplementary air supply duct is operated within a design range by separately installing an exhaust damper to the supplementary air supply duct, a rise in the pressure in the supplementary air supply duct can be prevented in a state in which all emergency doors are closed, and the proper pressure between the ancillary room and the indoor can be controlled. Also, since the exhaust damper installed to the supplementary air supply duct is quickly opened or closed, the proper pressure between the ancillary room and the indoor can be controlled. [Reference numerals] (AA) First operation condition of exhaust damper: exhaust damper opened; (BB) Second operation condition of exhaust damper: exhaust damper closed; (CC) First operation condition of emergency door: emergency door opened; (DD) Second operation condition of emergency door: emergency door closed