METHOD OF ORGANIZATION OF AIR EXCHANGE IN "CLEAN" ROOM AND DEVICE FOR REALIZATION OF THIS METHOD Russian patent published in 1997 - IPC

FIELD: air-conditioning systems; creation of microclimates in various spaces, in "clean" room in particular. SUBSTANCE: mixture of recirculated and processed air is fed to perforated ceiling via supply air duct where it is cleaned in filters and is delivered to "clean" room. Used air is evacuated through perforated floor and ejecting device and is evacuated to recirculated and evacuated air unit. Part of plenum air is fed by ejection to ventilation duct formed by walls of structure; air is fed though intake slot. As a result, coefficient of transfer of heat from guard surface to air moving in ventilation duct increases, thus intensifying exchange of heat. For realization of this method, room 1 is provided with supply air duct 4 laid in parallel with perforated ceiling 2 where filters 3 are mounted. Under perforated floor 5 exhaust passage 6 laid which is connected with air supply unit 4 through recirculated and evacuated air unit. Ejectors 8 are mounted at outlet of exhaust passage 6. Ventilation duct 9 formed by walls 10 is provided with throttling device 11 and is connected with air supply duct 4 by means of intake slot 12. EFFECT: enhanced efficiency. 3 cl, 1 dwg