Drying unit for a steam generator especially in nuclear reactors
AssigneeFramatome
InventorsClaude Lavalerie, Christian Borrel
Life of this patent
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Abstract
A modular drying unit for a steam generator, having identical dryer elements arranged partly as a polygonal crown within the envelope of the generator and partly as a star within that crown. The dryers constitute in trios triangular cells the inner space of which is divided by a partition permitting isolation of the dryers with respect to one another, as well as guidance of the steam at the intake and outlet ends of the dryers. This type of unit is particularly suitable for generators with natural circulation, notably for a nuclear reactor.
Claims6
Steam drying unit comprising a plurality of vertically disposed drying elements of parallelepipedic shape, each of said drying elements being provided with steam guidance means for the admission of wet steam into said drying element, and means for collecting the water gathered in said drying element, a number of said peripheral drying elements comprising an annular crown, the remainder of said drying elements being radially disposed at the interior of said crown, with each of said radial elements extending from a corner on said crown toward the center of said crown and forming with two of said radial elements a triangular cell, said guidance means comprising, for each said cell, an inner partition comprising three vertical plates, extending over a portion of each of the bisector plates of said cells and fixed to one another along a contact axis at the center of said cell, so as to define therein three equal compartments, and three transverse plates comprising two lower plates closing the base of two compartments, respectively, and an upper plate closing the top of the third compartment.
Dependencies are inferred from the claim text.