Degassifying and mixing apparatus for liquids
AssigneeThe United States of America as represented by the Administrator of the National Aeronautics and Space Administration
InventorSamuel T. Yamauchi
Life of this patent
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Abstract
A liquid degassifier including a containment vessel (10), a liquid pump (16) and a header assembly (12) within the containment vessel (10) in a volume above the reservoir (11a) of liquid therein. The pump (16) draws from this reservoir and outputs to the header assembly, the latter being constructed to return the liquid to the reservoir in the form of a stacked plurality of vertically spaced, concentric, conical cascades (13a, 14a and 15a) via orifices (13, 14, and 15). A vacuum source (34) provides a partial vacuum in the containment vessel (10) to enhance the degassing process.
Claims6
Liquid degassifying apparatus comprising:
- a vacuum tight vessel for containment of liquid to be subjected to continuous degassing operations, the level of said liquid within said vessel producing a first liquid volume therein, the remainder of the volume of said vessel comprising a second volume;
- a header assembly within said second volume, said header assembly including a stacked, spaced plurality of axially narrow orifices, each of said orifices extending generally circumferentially about the axis of said header assembly to produce a plurality of cascades of spaced generally concentric, conical, liquid films into said first volume and means for adjusting the thickness of the liquid films;
- a first means including a liquid input and manifold for said header assembly, said manifold being formed of a generally cylindrical body having a generally axial cavity therein, and a liquid passage connecting each of said orifices to said liquid manifold;
- a second means for circulating said liquid from said first volume to said header assembly liquid input;
- and a third means for partially evacuating said second volume.
Dependencies are inferred from the claim text.