FIREPROOFING DAMPER AND FAN FOR AN UNDERGROUND PARKING LOT CAPABLE OF MAINTAINING THE CLOSED STATE THEREOF WHEN FIRE OCCURS

摘要

PURPOSE: A fireproofing damper and fan for an underground parking lot is provided to improve driving force according to the centrifugal force.;CONSTITUTION: A fireproofing damper and fan for an underground parking lot comprises a case(10), exhaust fan(20), an opening/closing unit(30), and an opening/closing device. The case is inserted between a wall formed between an air supply passage and an underground parking lot, and a discharge passage and the underground parking lot. The exhaust fan is composed of an impeller and an impeller fixing bracket. The opening/closing device is combined with one damper formed in the opening/closing unit.;COPYRIGHT KIPO 2012