ROTARY ROOF VENT

This invention relates to smoke removal and exhaust air ventilation devices with a radial flow, namely to radial-flow (centrifugal) smoke removal and ventilation fans installed on the roofs of buildings, and providing removal of smoke, gases and air from the premises in the event of fire or gas cont...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Ivanov, Dmitrij S, Semenov, Evgenij I, Filippov, Aleksej V
Format:	Patent
Sprache:	eng
Schlagworte:	AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING BLASTING HEATING LIGHTING MECHANICAL ENGINEERING RANGES VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	This invention relates to smoke removal and exhaust air ventilation devices with a radial flow, namely to radial-flow (centrifugal) smoke removal and ventilation fans installed on the roofs of buildings, and providing removal of smoke, gases and air from the premises in the event of fire or gas contamination by force of the natural draft. The rotary roof vent comprises a base, a rim, blades, a shaft on which the rim with the blades rotate; wherein the base, rims with the bushings, a cover and the blades are monolithically cast from plastic, the roof vent comprises two rims mounted one in the other and connected by a locking mechanism consisting in three protuberances on the bushings, the blades are installed in the upper and lower rims, with bearings being provided for installation of the upper and lower rims. The cover is made in the form of a hemisphere. The technical result consists in the improvement of technical and operational characteristics, as well as expanding the range of technical means stack. 3 files, 2 figures.