Original document(21 pages) Authorized document(20 pages) 中文版
    The present invention relates to one apparatus for heating and drying moisture absorbed fiber or plastic based electrically insulating part by the condensation heat of vacuum-evaporated heated liquid, and is especially one apparatus for heating and drying transformer, capacitor, measuring mutual inductor or alive insulating casing. During the heating, at least a kind of second liquid with relatively high boiling point, such as transform oil, is separated. The apparatus includes one container, one vacuum pump, at least one condensator and/or one heat exchanger for heating liquid. It may includes also one moving unit for in-situ treatment of transformer in its working state. The heat exhanger heats liquid while maintaining liquid state, and the avaporation is performed only on or inside one container, e.g., an expansion valve, an expanding container on some container or an evaporator.
Application Number
申请号
02106602 Application Date
申请日
2002.02.28
Title 名称 Preparing device for transformer
Publication Number
公开号
1440827 Publication Date
公开日
2003.09.10
Approval Pub. Date 2006.07.05 Granted Pub. Date 2006.07.05
International Classification 分类号 B01D1/00,B01D1/26,F26B21/04,F26B5/04,H01F27/14,H01F41/12,H01B19/02
Applicant(s) Name
申请人
William Heidrisch Vacuum Equipment GmbH & Co. KG
Address 地址
Inventor(s) Name 发明人
Attorney & Agent 代理人 jian wei
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