H - Electricity – 05 – B
Patent
H - Electricity
05
B
H05B 6/42 (2006.01) H05B 6/74 (2006.01)
Patent
CA 2433113
The present invention relates to an induction heating coil comprising a litz cable which is wound into a spiral to form a bobbin, and means for cooling said cable indirectly. The litz cable is arranged to be cooled by means of an indirect cooling system that comprises a tube which is wound in an intermeshed fashion with the windings of the litz cable. The present invention relates also to a method on a paper or board machine or on a paper finishing machine, in which method at least one induction heating coil comprising a wound litz cable is used for heating a component, and said coil is cooled indirectly by a cooling medium.
La présente invention concerne un serpentin de réchauffage par induction, qui comprend un câble litzendraht enroulé en spirale pour former une bobine, et un moyen pour refroidir ce câble indirectement. Le câble litzendraht est conçu pour être refroidi au moyen d'un système de refroidissement indirect qui comprend un tube enroulé de façon à former un maillage avec les enroulements du câble litzendraht. L'invention concerne également un procédé qu'on met en oeuvre sur une machine à papier ou à carton ou sur une machine de finissage du papier. Dans ce procédé, au moins un serpentin de réchauffage par induction comprenant un câble litzendraht enroulé est utilisé pour chauffer un élément, ledit serpentin étant refroidi indirectement par un agent de refroidissement.
Andersson Lars
Hoyssa Pekka
Markegard Leif
Saynavajarvi Risto
Efd Induction A.s.
Metso Automation Oy
Ridout & Maybee Llp
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