초록 ▼

An oxygen enrichment and concentration system draws air from the ambient atmosphere and includes a set of primary adsorption beds and a set of secondary adsorption beds to adsorb components of the air other than oxygen. A blower and valves connected between the primary adsorption beds and the second

An oxygen enrichment and concentration system draws air from the ambient atmosphere and includes a set of primary adsorption beds and a set of secondary adsorption beds to adsorb components of the air other than oxygen. A blower and valves connected between the primary adsorption beds and the secondary adsorption beds alternatively direct the flow of air through one or the other bed of each set of adsorption beds. The enriched and concentrated oxygen product is stored in a storage vessel. A purge conduit connects the outlet of each of the secondary adsorption beds with the outlet of another secondary adsorption bed and the outlet of one of the primary adsorption beds so a small portion of the purified product from one adsorption bed is directed in a reverse direction through the other adsorption bed of the secondary set and the adsorption bed of the primary set to cleanse the adsorption material. Following such cleansing the purge gas is exhausted to the atmosphere and the cleansed adsorption bed is ready to again adsorb nonoxygen components of air.

대표청구항 ▼

An apparatus for taking in a gas containing a plurality of components and producing a product gas having an increased concentration of a given component of the intake gas, the apparatus comprising: an apparatus gas intake port; a pair of primary adsorption beds, having an inlet coupled to the intake

An apparatus for taking in a gas containing a plurality of components and producing a product gas having an increased concentration of a given component of the intake gas, the apparatus comprising: an apparatus gas intake port; a pair of primary adsorption beds, having an inlet coupled to the intake port and an outlet, and containing an adsorbent material for removing from the gas at least one of the components other than the given component; a pair of secondary adsorption beds, each having an inlet an outlet and containing an adsorbent material for removing from the gas at least one component other than the given component; valving means coupled between the primary adsorption beds and the secondary adsorption beds for alternatively directing gas through the first primary and first secondary adsorption beds, or through the second primary and second secondary adsorption beads; a blower coupled to the outlets of the primary adsorption beds and to the inlets of the secondary adsorption beds for causing a flow of air through the primary and secondary adsorption beds; a moisture separator for removing moisture from the gas wherein the moisture separator is coupled to the apparatus so the gas flowing through the primary adsorption beds and the secondary adsorption beds flows through the moisture separator; and a purge conduit for directing a portion of the product gas output from the first secondary adsorption bed through the second secondary adsorption bed and the second primary adsorption bed when the valving means directs the gas flow through the first primary and first secondary adsorption beds, and for directing a portion of the product gas output from the second secondary adsorption bed through the first secondary and first primary adsorption beds when the valving means directs the gas flow through the second primary and secondary adsorption beds.