An automatic excessire pressre velease device for ventilating duct within the smoke control area of building

摘要

The present invention relates to a blower line overpressure automatic discharge device of the building ventilation area, and more specifically, a blower which is located on one side in communication with the blower line to blow air; An automatic differential pressure control damper capable of opening and closing an end of the blowing line so as to control the differential pressure by supplying air from the blowing line to the ventilation area; Bypass pipe connected to the blowing line for bypassing the air flowing in the blowing line to the outside; It consists of an overpressure automatic discharge device that automatically opens the bypass pipe when the pressure in the blower line is overpressured and closes the bypass pipe by its own weight when the pressure drops.If the wind pressure of the blower line is overpressure in case of fire, When the wind pressure of the blower line is automatically pushed open by the set pressure, it keeps closed by its own weight, and keeps the differential pressure of the ventilation area at the set differential pressure regardless of the electrical change in case of fire so that children and the elderly can control the door. The present invention relates to an overpressure automatic discharge device of a building that can be easily and easily opened and closed to an area to evacuate to a safe place.;Overpressure automatic discharge device, blower line, blower, wind pressure, ventilation area