Boiler with rotatable heat exchanger
AssigneeCaradon Mira Limited
InventorsTerence L. Winnington, Ian W. Eames
Life of this patent
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Abstract
A boiler has a gas burner assembly and a heat exchanger positioned in a combustion chamber for heating water circulated through the heat exchanger by heat exchange with the combustion products. The performance of the heat exchanger is improved by rotating the heat exchanger to prevent formation of a boundary layer of cooler combustion products and/or a surface film of condensed moisture on the heat exchange surface.
Claims20
A boiler comprising an enclosure including a burner assembly and defining a combustion chamber, a disc-shaped heat exchanger arranged in said combustion chamber between said burner assembly and an end wall of said combustion chamber for rotation about an axis, said heat exchanger having front and rear walls defining heat exchange surfaces facing said burner assembly and said end wall respectively, turbulator means on said end wall for promoting shear and turbulence of combustion products flowing over said rear wall, means for circulating fluid to be heated through said heat exchanger, and drive means for rotating said heat exchanger relative to said turbulator means about said axis.
Dependencies are inferred from the claim text.