초록 ▼

An apparatus for producing a controlled atmosphere in an area by providing for the removal of oxygen, carbon dioxide, water droplets and ethylene from a gas stream. The apparatus includes two compressors to increase the pressure of the gases present which are then separated by diffusion across at le

An apparatus for producing a controlled atmosphere in an area by providing for the removal of oxygen, carbon dioxide, water droplets and ethylene from a gas stream. The apparatus includes two compressors to increase the pressure of the gases present which are then separated by diffusion across at least two membranes.

대표청구항 ▼

An apparatus for producing a controlled atmosphere in a preselected area, comprising: inlet means for accepting exhaust gases from said area where said controlled atmosphere is desired; a first compressor having an entrance and an exit, with said entrance being connected to an outside atmosphere and

An apparatus for producing a controlled atmosphere in a preselected area, comprising: inlet means for accepting exhaust gases from said area where said controlled atmosphere is desired; a first compressor having an entrance and an exit, with said entrance being connected to an outside atmosphere and to said inlet means; a first gas separation means connected to said first compressor exit for removing gases selected from the group consisting of carbon dioxide, oxygen, ethylene, and water vapor from gases received from said first compressor; first outlet means connected to said first gas separation means for releasing gases into said area where said controlled atmosphere is desired; a first valve connected between said first compressor entrance and said inlet means; a second valve connected to said first compressor entrance and in flow communication with said outside atmosphere; a sensing means arranged so as to sense a pressure in said area where said controlled atmosphere is desired; an activation means connected to said first valve and said second valve, said activation means for activating said first valve and said second valve when said sensing means senses a pressure outside a set of preselected pressure limits; a second compressor having an entrance and an exit, said second compressor entrance in flow communication with said outside atmosphere; and a second gas separation means having an entrance and an exit, said second gas separation means exit in flow communication with said area where said controlled atmosphere is desired.