Gas separation – Means within gas stream for conducting concentrate to collector
Patent
1986-08-05
1988-11-08
Nozick, Bernard
Gas separation
Means within gas stream for conducting concentrate to collector
55393, 55410, 55457, 55348, 122 34, 734321, 738659, B01D 4512
Patent
active
047832045
ABSTRACT:
Both an apparatus and a method for maximizing the separation characteristics of a swirl vane steam-drying device is disclosed herein. Generally speaking, such swirl vane separators include a housing formed from a riser barrel which is concentrically disposed within a downcomer barrel, a steam inlet at one end of the concentric barrels, a steam outlet at the other end of the concentric barrels, and a set of pitched blades disposed within the riser barrel between the steam outlet and inlet for imparting a radial component of motion to the wet steam which flows therethrough. This radial component of motion causes water droplets entrained in the steam to move in spiral paths which ultimately intersect a region in the interior of the separator which includes an opening for directing these droplets into a downcomer path defined between the concentrically disposed riser and downcomer barrels of the housing. The invention is both a blade positioner for positioning the pitched blades at an optimal point along the longitudinal axis of the housing, and a set of annular inserts which may be detachably mounted around the steam outlet of the housing for varying the diameter of the outlet. The invention is particularly adapted for use in the banks of swirl vane separators used in the secondary sides of nuclear steam generators, in that it allows each of the separators in the bank to be fine tuned in accordance with the specific characteristics of the steam flow which it receives from the bundle of heat exchange tubes which it overlies.
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Nozick Bernard
Westinghouse Electric Corp.
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