Patent ID: 6732448
Filing Date: 2004-05-11
Classification: B01D,F26B,H01F

Abstract:
A device for heating and drying parts with cellulose- or plastic-based hygroscopic electric insulation in a vacuum by means of condensation heat of a vapor from a heating fluid, wherein during the heating of the parts, at least one second fluid, is removed from the parts, comprisinga vessel for containing the parts, a vacuum pump for producing a vacuum in the vessel, at least one condenser for condensing vapor from the vessel, means for circulating the heating fluid through the vessel including a pump for pressurizing the heating fluid, a heat exchanger for the pressurized heating fluid, the heat exchanger heating the pressurized heating fluid, but leaving the pressurized heating fluid in the liquid phase, and expansion means for expanding at least a portion of the heated and pressurized heating fluid just prior to or in the vessel.