Smoke protection device for stairs spaces or the like

摘要

Smoke protection system for buildings with a in a stairs room or space to be secured to be arranged in a similar manner, for the production of an overpressure certain, having at least one blower ventilating system, with at least one smoke detector, a to the ventilation system and the smoke detector connected circuit arrangement for switching on of the ventilation system, upon the occurrence of smoke, at least one in a lower area of the building and at least one air inlet opening located in an upper region of the building opening located, as well as with at least one component which, with the ventilating system, the supply air opening and of the exhaust air opening a device for the production and maintenance of a preselected excess pressure in the stairs space according to the response of the smoke detector may form, wherein as a component for the production and maintenance of a preselected excess pressure in the stairs space (10) at least one pressure flap (15) is provided, which in the area of the wall or ceiling area of an intermediate wall (14) or intermediate ceiling between the stairs space or the elevator shaft and a downstream space (12) or the outer region is arranged and by means of which a differential pressure between the stairs space (10) or the elevator shaft and to the downstream space or the outer region is generated.