Shrouded coiled crested tube diabatic mass exchanger
OwnerDonald C. Ericksoninventor
Life of this patent
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Abstract
A non-adiabatic vapor-liquid contact device is disclosed which achieves high heat transfer effectiveness without sacrificing mass transfer effictiveness. Referring to FIG. 2, a helical coil of crested tubing 84 is contained within the annualr space between shrouds 82 and 83. Liquid flows downward through the annulus, and vapor flows countercurrently upward. The mass exchanging fluids pass through the space between tube crests and the shroud, achieving very effective mixing. Heat transfer fluid is flowed through the tubing via connections 87 and 88.
Claims20
A combination heat and mass exchange component for an absorption cycle apparatus comprised of:
- a) at least one helical coil of crested tubing:
- b) a cylindrical inner shroud in thermal contact with the inner surface, of said coil;
- c) a cylindrical outer shroud in thermal contact with the outer surface of said coil;
- d) a containment which supports said coil such that the coil axis is approximately vertical;
- e) means for supplying a downflowing liquid and an upflowing vapor to the annular space between said shrouds;
- and
- f) a means for transporting heat transfer fluid through said tubing.
A non-adiabatic mass transfer apparatus for countercurrent vapor-liquid contact comprising:
- a) a shrouded coil of crested tubing;
- b) a countercurrent flow of liquid and vapor between the shroud and the tubing, through the valleys between the tubing crests;
- and
- c) a flow of heat transfer fluid through said tubing.
A process for diabatic countercurrent vapor-liquid contact comprising:
- a) providing a coil of crested tubing contained between two shrouds
- b) distributing liquid to the top of the outside of said coil;
- c) supplying vapor to the bottom of the outside of said coil;
- and
- d) flowing heat transfer fluid through said tubing.
Dependencies are inferred from the claim text.