Abstract This invention provides an arrangement for improving the removal of moisture from a moisture-laden hot pressurized vapor, such as steam, in a vessel having a moisture separator, by directing the high-velocity incoming steam through a manifold extending in side-by-side lengthwise relation with the separator and having outlet orifices along its length formed in groups and arranged in such a manner that the total cross-sectional area of the orifices in the groups decreases in the direction of flow of steam through the manifold. Vanes extending transversely to the length of the manifold are employed to turn and direct the steam from the outlets into a diffusion space between the separator and the manifold, and baffle plates are mounted across the vanes to prevent direct infringement of the steam issuing as jets from the orifices.
The structure recited in claim 1, and further including a baffle plate extending across each group of vanes to promote diffusion of the vapor jets and to prevent direct impingement of the individual jets against the moisture-separating device.
Claim 2
Independent Claim
232 words
A device for separating moisture from moisture-laden pressurized vapor, comprising a horizontally elongated tubular casing closed at both ends, and having an inlet at one end for admitting moisture-laden pressurized vapor and an upwardly extending outlet intermediate its ends for delivering moisture-free vapor from said casing, a moisture-separating blanket of randomly matted filamentary material disposed in said casing, means cooperatively associated with said blanket for dividing the casing into a lower chamber communicating with said inlet and an upper chamber communicating with said outlet, a manifold structure for directing moisture-laden vapor from the lower chamber to said blanket, said manifold including a horizontally extending wall structure at least partially dividing said lower chamber into a longitudinally extending flow passage for the incoming vapor and a coextensive diffusion passage, the diffusion passage being disposed above the incoming vapor passage, and means including a plurality of orifices in said manifold wall structure for directing the moisture-laden vapor therethrough into said diffusion passage at substantially uniform velocity throughout the entire length of said wall structure, said orifices being arranged in a manner to provide moisture-laden vapor outlets of diminishing cross-sectional area in the direction of flow of the moisture-laden vapor through said manifold structure, said orifices also being arranged in spaced groups and the number of orifices in said groups decreasing from group to group to provide the diminishing cross-sectional area of the vapor outlets.
Claim 3
Dependent Claim
35 words
The structure recited in claim 3, and further including a plurality of vanes extending upwardly from the manifold wall structure and transversely to the flow of vapor in the manifold to deflect the vapor upwardly.
Claim 4
Dependent Claim
44 words
The structure recited in claim 4, and further including baffle plate structure extending horizontally across the vanes to promote diffusion of the vapor jets through the orifices and to prevent direct impingement of the individual jets against the surface of the moisture separator blanket.