Rotating heat exchanger
AssigneeSkandinaviska Apparatindustri AB
InventorKarl A. B. Jarreby
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Abstract
The invention concerns a rotating heat-exchanger comprising a cylinder having an inner jacket, and outer jacket and a section intermediate the jackets for the heat-exchanging medium. The heat-exchanger is particularly intended for use in paper-making machines and paper converting machines. The invention solves the problem in such cylinders or rollers of reducing the rotating mass. In accordance with the teachings of the invention this is made possible by rotating only the outer jacket whereas the inner jacket and the central shaft or equivalent means are stationary.
Claims9
A rotating heat exchanger in the form of a cylinder having inner and outer spaced apart jackets defining a heat exchanger section for passage of a fluid serving as the heat-exchanging medium in the space between the outer jacket and the inner jacket, said inner jacket being stationary, and means for rotating said outer jacket relative to said inner jacket in a first circumferential direction, characterised in that one of said jackets is formed along its face exposed in said heat-exchanger section with at least one helically extending rib designed to guide the heat-exchanging medium in a helical flow path of a predetermined hand through said heat-exchanger section and thus imparting to the medium a component of velocity in the peripheral direction of the cylinder counter to the direction of rotation of said outer jacket in order to generate a turbulent flow of the heat-exchanging medium through said heat exchanging section.
Dependencies are inferred from the claim text.