| 摘要 |
PURPOSE: A proportional control system of an air supply damper at a smoke control zone is provided to block smoke which is diffused from a smoke control zone by a fire compartment in a building and uniformly maintain the allowed differential pressure of the smoke control zone by controlling air flow through the proportional control of a wing angle of the damper based on differential pressure. CONSTITUTION: A proportional control system of an air supply damper at a smoke control zone comprises an air duct which induces outside air entered through an outdoor ventilator to a smoke control zone, an air supply damper which is connected to the air duct and flows in the outside air to the smoke control zone according to the opening and closing of a damper wing and a control system which controls the air supply damper in order to form the inside differential pressure of the smoke control zone by air volume control put through the air supply damper. The air supply damper consists of a proportional control system controlling the air volume, which is supplied to each air supply damper arranged at each floor of a building, in order to equally maintain the proper differential pressure of the smoke control zone. The proportional control system comprises: a driving device part which is connected to the wing in order to open and close the wing of the air supply damper by driving the wing according to the differential pressure of the smoke control zone; and a proportional control part which controls proportionally the air volume of each air supply damper by detecting the differential pressure of each smoke control zone. |
