Ceramic ferrule and ceramic ferrule refractory wall for...

Details Ceramic ferrule and ceramic ferrule refractory wall for... Ceramic ferrule and ceramic ferrule refractory wall for...

F - Mech Eng,Light,Heat,Weapons

22

B

F22B 37/24 (2006.01) F22B 37/08 (2006.01) F23M 9/06 (2006.01) F28F 9/08 (2006.01) F28F 19/00 (2006.01)

Patent

CA 2175846

A ceramic ferrule, an array of ceramic ferrules, and a ceramic ferrule refractory wall, all for shielding a tube sheet/boiler tube assembly of a heat exchanger connected to an industrial heat source. The head portion of each ferrule replaces conventional cast refractory walls, and has an outer-peripheral shape that allows the ferrules to mate at the operating temperature of the industrial heat source. The mated ferrules expand and contract substantially independently of one another, but form a substantially gas-tight barrier for shielding the tube sheet/boiler tube assembly from the waste gas of the industrial heat source.

Manchon de céramique, arrangement de manchons de céramiques et écran réfractaire à manchons de céramique, le tout pour protéger un ensemble plaque tubulaire/tubes bouilleurs d'un échangeur de chaleur raccordé à une source de chaleur industrielle. La tête des manchons remplace les écrans réfractaires moulés conventionnels, et elle a une forme périphérique extérieure qui permet aux manchons de s'adapter les uns aux autres à la température de service de la source de chaleur industrielle. Les manchons adaptés se contractent et se dilatent de façon substantiellement indépendante l'un de l'autre, mais forment une barrière substantiellement étanche au gaz pour protéger l'ensemble plaque tubulaire/tubes bouilleurs contre les gaz de récupération de la source de chaleur industrielle.

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