Heating system for compressive shrinkage machines

Details Heating system for compressive shrinkage machines Heating system for compressive shrinkage machines

D - Textiles, Paper

06

C

D06C 21/00 (2006.01) D06C 23/04 (2006.01) D06C 29/00 (2006.01) D06F 58/00 (2006.01)

Patent

CA 2315822

A heating system for a mechanical compressive shrinkage apparatus in which a continuously flowing liquid heat exchange medium is caused to flow in series through each of the components required to be heated. Heat is input to the flowing medium in accordance with the temperature of one of the components to be heated, preferably the first in the series. Uniformity and constancy of both absolute and relative temperatures of the series-connected components is achieved. A mixture of water and propylene glycol alcohol is an advantageous heat exchange medium for the purpose, which allows operation at lower pressure without the maintenance problems of a system using, for example, oil as the exchange medium.

L'invention concerne un système de chauffage destiné à une machine de retrait par compression mécanique, dans lequel système on fait passer en série, à travers chacun des composants devant être chauffés, un milieu échangeur thermique liquide en écoulement continu. On transmet de la chaleur audit milieu en écoulement, en fonction de la température d'un des composants à chauffer, de préférence, du premier de la série. On obtient une certaine uniformité et une certaine constance des températures absolue et relative des composants raccordés en série. Un mélange d'eau et d'alcool de propylène glycol constitue un milieu échangeur thermique avantageux pour ce faire, et permet un fonctionnement à une pression inférieure sans présenter les problèmes de maintenance des systèmes utilisant, par exemple, de l'huile en tant que milieu échangeur.

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