Temperature holding device for water collecting ve

专利名称：Temperature holding device for water

collecting vessels of once- through steamgenerators

发明人：Georg Losel,Werner Emsperger申请号：US06/033104申请日：19790425公开号：US04261301A公开日：19810414

摘要：In a temperature holding device for water collecting vessels of steam

generators operable in once-through and circulating operation, having a feed-water lineleading to the once-through steam generator, an evaporator and a superheater heatingsurface in the feed-water line, water-steam separating vessels intermediate theevaporator and superheater heating surface, a return line for returning water from theseparating vessel to the feed-water line, a circulating pump and a first valve arrangementin the return line, a warm- up line having one end connected to the feed-water line beforethe evaporator, and another end connected to the return line intermediate thecirculating pump and first valve arrangement, and a second valve arrangement in thewarm-up line. A common water collecting vessel connected to outlets on the water sideof the separating vessels by partial lines of the return line, a steam line connected fromthe steam side of the common water collecting vessel to an input of the superheaterheating surface, and a shut-off valve in the steam line being closable in once-throughoperation and openable in circulating operation.

申请人：KRAFTWERK UNION AKTIENGESELLSCHAFT

代理人：Herbert L. Lerner

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