Method for operating a steam power installation and...

Power plants – Motive fluid energized by externally applied heat – Process of power production or system operation

Reexamination Certificate

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Details

C060S676000, C060S679000

Reexamination Certificate

active

06964167

ABSTRACT:
The invention relates to a method for operating a steam power installation, whereby steam produced in a boiler is condensed in a condenser after passing through at least one turbine, and the condensate obtained is preheated and redirected back to the boiler as boiler feed-water. In order to preheat the condensate, said condensate is split into a first partial current and a second partial current. Only the first partial current is preheated and the second partial current is then mixed with the preheated first partial current. The power of the turbine can thus be increased as required, up to the boiler reserve of the steam power installation.

REFERENCES:
patent: 3969891 (1976-07-01), Aguet
patent: 4373340 (1983-02-01), Keller
patent: 4465027 (1984-08-01), Steinegger
patent: 4841722 (1989-06-01), Bjorge
patent: 5045272 (1991-09-01), Lyman et al.
patent: 6233939 (2001-05-01), Ngo-Beelmann et al.
patent: 482635 (1928-05-01), None
patent: 1811008 (1970-04-01), None
patent: 2164631 (1973-07-01), None
patent: A2-1055801 (2000-11-01), None
patent: 1396379 (1964-02-01), None
patent: 2551181 (1985-03-01), None
Von G. Falgenhauer—Beitragsmöglichkeiten der Speisewasser-, Kondensatund Anzapfdampfströme zur schnellen Leistungsänderung fossil befeurter Kraftwerksblöcke—VGB Kraftwerstechnik 60—Heft 1—Jan. 1980—XP000670759.

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