The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 27, 1995
Filed:
Feb. 14, 1994
Hermann-Josef Conrads, Herzogenaurach, DE;
Jurgen Czech, Oberreichenbach Herzogenaurach, DE;
Horst Goggelmann, Furth, DE;
Werner Leidemann, Obermichelbach, DE;
Pius Mackert, Erlangen, DE;
Walter Merklein, Nurnberg, DE;
Rainer Schilling, Erlangen, DE;
Bernd Staehle, Erlangen, DE;
Wilfried Stoll, Nurnberg, DE;
Paul Uyttendaele, Erlangen, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A pressurized water reactor residual heat extraction system uses the secondary cooling circuit to extract the residual heat in certain operating and malfunction conditions. A steam generator (D1) has a connection, located on the live-steam and feed-water side, to the secondary circuit side of a safety condenser (SK1). The tertiary circuit side of the safety condenser is fed from a water reservoir (B) located at a physically higher level. The steam generated is vented to the atmosphere through a blow-off line (b2) which may include a separator. A make-up feed device (E1) is connected to the secondary side of the steam generator. Because of the higher location of the safety condenser with respect to the steam generator, the heat energy in the secondary cooling circuit circulates by natural circulation.