Continuously regenerable scrubber
AssigneeOceaneering International, Inc.
InventorsJohn Fricker, Tatsuya Arai
Life of this patent
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Abstract
Regeneration of a fluid medium can be accomplished using a continuously regenerable scrubber, which, in its various embodiments, combines valve functions and sorbent material, such as amine beds, into one component, dramatically reducing size and mass of scrubber. Sorbent material beds rotate continuously past breathing gas vent loop ports for scrubbing CO2/H2O and then past vacuum ports for regenerating the sorbent material. Typically, a first fluid output is connected to a lower header fluid output and a second, sweeping fluid source connected to a lower header fluid input. A motor spins the substantially circular bed assembly at a predetermined speed which allows adsorption or absorption as well as desorption of materials flowing through the sorbent material.
Claims11
A method of continuously regenerating a fluid medium using a continuously regenerable scrubber, comprising an upper header, the upper header comprising an outer surface, an inner surface, an upper header fluid inlet disposed through the outer surface to the inner surface, the upper header fluid inlet defining a fluid pathway into the inner surface, an upper header pressure inlet disposed through the outer surface to the inner surface, and an upper header gasket;
- an upper header spacer disposed about the lower surface of the upper header;
- a lower header connected to the upper header, the lower header comprising an outer surface, an inner surface, a partitioning wall disposed within the inner surface, the partitioning wall defining a desorption area and a separate absortion area, a lower header fluid outlet disposed through the outer surface to the inner surface, a lower header pressure outlet disposed through the outer surface to the inner surface, and a lower header gasket;
- a lower header spacer disposed about the inner surface of the lower header;
- a rotatable bed assembly disposed intermediate the upper header and the lower header, the rotatable bed assembly comprising a bed comprising a shape that is rotatable within the upper header and the lower header, the bed comprising a material receiver therethrough, the material receiver comprising a predetermined sorbent material disposed within the material receiver, the sorbent material operative via absorption alone, adsorption alone, and absorption and adsorption together, and of desorption of substances from or to flowing media, a bottom gasket disposed proximate a lower surface of the bed, a bottom bed screen disposed intermediate the bottom gasket and the lower surface of the bed, a bottom disk connected to the bottom bed screen, a lower space disposed intermediate the bottom disk and the lower header, an upper gasket disposed proximate an upper surface of the bed, an upper bed screen disposed intermediate the upper gasket and the upper surf ace of the bed, an upper disk connected to the upper bed surface, and a header spacer disposed intermediate the upper header and the upper gasket;
- a rotator operatively in communication with the rotatable bed assembly;
- and a fastener adapted to fasten the upper header to the lower header, the method comprising:
- a. connecting a first fluid source (80) to the upper header fluid inlet (13), the first fluid source comprising a source of fluid to be regenerated;
- b. connecting the upper header fluid inlet (13) to the lower header fluid outlet (43);
- c. connecting a sweeping fluid supply (81) to the upper header pressure inlet (14), the upper header pressure inlet (14) in fluid communication with the lower header pressure inlet (44);
- d. connecting a motor (70) to the rotator (51);
- and
- e. energizing the motor (70) to spin the rotatable bed assembly (20) at a predetermined speed sufficient to allow desorption and absorption alone, adsorption alone, and absorption and adsorption together of materials flowing through the sorbent material.
Dependencies are inferred from the claim text.