Apparatus and method for controlling heat transfer between a fluidized bed and tubes immersed therein
OwnerJames L. Hodges, Anthony E. Cerkanowiczinventors
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Abstract
In a fluidized bed of solid particles having one or more heat exchange tubes immersed therein, the rate of heat transfer between the fluidized particles and a fluid flowing through the immersed heat exchange tubes is controlled by rotating an arcuate shield apparatus about each tube to selectively expose various portions of the tube to the fluidized particles.
Claims4
A method for controlling the rate of heat transfer between a fluidized bed of solid particles suspended in a fluidizing gas and a second fluid flowing through a tube immersed therein, said tube disposed substantially transverse to the flow of fluidizing gas through the bed, comprising the step of selectively exposing a longitudinal portion along the length of said tube to the fluidized particles while shielding the remaining portion of said tube from the fluidized particles.
Dependencies are inferred from the claim text.