Heat exchanger

F - Mech Eng,Light,Heat,Weapons – 28 – D

Patent

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Details

F28D 11/02 (2006.01) F28D 11/04 (2006.01) F28F 1/00 (2006.01) F28F 5/00 (2006.01)

Patent

CA 2650787

A heat exchanger is disclosed which comprises an elongate fluid duct having a series of openings and an outer sleeve disposed outside and extending along the duct to cover the openings. A drive motor is provided for imparting relative motion between the duct and the sleeve so that the sleeve moves across the openings in the peripheral wall of the duct. A temperature control device which may comprise an outer jacket arranged about the sleeve to define a chamber for receiving a heat exchange fluid, an electric heating element for supplying current to the outer sleeve or duct to heat the outer sleeve or duct, a series of burners for heating the outer surface of the sleeve, or a heating element incorporated in one of the duct and sleeve.

L'invention concerne un échangeur de chaleur qui comprend une conduite de fluide allongée dotée d'une série d'ouvertures et un manchon externe disposé à l'extérieur et s'étendant le long de la conduite pour recouvrir les ouvertures. Un moteur d'entraînement est disposé pour communiquer un mouvement relatif entre la conduite et le manchon de telle sorte que ledit manchon se déplace à travers les ouvertures dans la paroi périphérique de la conduite. L'invention concerne également un dispositif de commande de température qui peut comprendre une enveloppe externe disposée autour du manchon pour définir une chambre qui reçoit un fluide d'échange de chaleur; un élément de chauffage électrique alimentant en courant le manchon externe ou la conduite pour chauffer le manchon externe ou la conduite; et une série de brûleurs pour chauffer la surface externe du manchon, ou un élément de chauffage incorporé dans la conduite et ou dans le manchon.

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