Refrigeration – Processes – Deodorizing – antisepticizing or providing special atmosphere
Patent
1997-05-17
1999-03-30
Joyce, Harold
Refrigeration
Processes
Deodorizing, antisepticizing or providing special atmosphere
426418, A61L 900
Patent
active
058874399
ABSTRACT:
Hypoxic cleanroom system is provided for industrial applications. The equipment of the system provides clean low-oxygen or oxygen free environments with climate control and at normal atmospheric or increased pressure. The system employs an oxygen-extraction device, which supplies oxygen-depleted air inside an enclosure communicating with the device. The system may employ a gas-recycling feature by drawing oxygen-depleted gas mixture from the enclosure back into an intake of the oxygen-extraction device wherein it is mixed with an ambient air intaken by the device or by using additional oxygen-extraction device for gas recycling. For cleanroom applications the system employs a gas-recirculating device, which draws internal gas mixture from a cleanroom interior for cleaning and regulating its temperature and humidity, and sends it back through a perforated ceiling, producing laminar flow inside cleanroom. The system may be applied to interior space inside any structure.
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