Auto opening and closing system of pressure differential smoke ventilating window

摘要

An automatic opening and closing system for a differential pressure smoke ventilating window is provided to prevent a counter flow of the outside air into a room and to make residents evacuated from a fire easily, and to prevent an accident by suffocation such as smoke or poisonous gas by opening a smoke ventilating window compulsively if the indoor pressure is higher than the outdoor pressure and closing the smoke ventilating window compulsively if the outdoor pressure is higher than the indoor pressure. An automatic opening and closing system for a differential pressure smoke ventilating window includes a smoke detector(18) installed to a wall or a ceiling in a room to detect a fire, smoke or poisonous gas, and a smoke ventilating window opening and closing device(20) composed of a smoke ventilating opening and closing unit(10) installed to a smoke ventilating window frame(1) or a wall to open a smoke ventilating window compulsively, a pressure detector(15) installed to the smoke ventilating window frame or the wall to make one side contact with the inside air and the other side contact with the outside air, and a signal processor(13) installed adjacently to the smoke ventilating window opening and closing unit or the pressure detector and receiving data from the fire detector and the pressure detector and opening or closing the smoke ventilating window compulsively.