| 摘要 |
The invention relates to a device for heating and drying parts (2) with cellulose or plastic based hygroscopic electroinsulations, especially for the preparation of new or used transformers, condensers, instrument transformers or electric leadthroughs in a vacuum by means of condensation heat from the steam of a heating fluid (a solvent, kerosine). During heating, at least one higher-boiling second liquid, such as transformer oil, results from said parts (2). The inventive device also comprises a vessel, a vacuum pump (10), at least one condenser (3 and/or 8) and a heat exchanger (16) for the heating fluid. In order to provide a mobile system enabling local treatment of transistors (2) which are already in operation, the heat exchanger (16) heats the heating fluid in the liquid phase and evaporation occurs on or in the vessel, for example, via expansion valves (18) and/or in an expansion container or evaporator arranged directly on the vessel.
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