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Title:
ELECTRIC POWER PLANT, AND METHOD FOR RUNNING THE ELECTRIC POWER PLANT
Document Type and Number:
WIPO Patent Application WO/2010/086898
Kind Code:
A1
Abstract:
Disclosed is an electric power plant such as a boiling water type nuclear power plant for feeding a high-pressure turbine and a low-pressure turbine with steam generated in a nuclear reactor. The steam discharged from the low-pressure turbine is condensed by a condenser. The water generated by the condenser passes as feed water through the feed pipe, and is heated by a low-pressure water heater and a high-pressure water heater, and is fed to the nuclear reactor. The high-pressure water heater is fed with the steam bled from the high-pressure turbine. The steam bled from the low-pressure turbine is compressed in a steam compressor so that it is heated to a raised temperature and fed to the high-pressure water heater. The feed water to be guided to the nuclear reactor is heated in the high-pressure water heater with the steam bled from the high-pressure turbine and the steam compressed by the steam compressor. Since the feed water is heated in the high-pressure water heater with the bled steam and the compressed steam, the consumption of the station power in the steam compressor can be reduced. Thus, the thermal efficiency of the plant can be enhanced in improvement of the output.

Inventors:
NAMBA, Koji (HITACHI LTD., 2-1, Omika-cho 7-chom, Hitachi-shi Ibaraki 21, 31912, JP)
難波孝次 (〒21 茨城県日立市大みか町七丁目2番1号株式会社日立製作所 エネルギー・環境システム研究所内 Ibaraki, 31912, JP)
HATAMIYA, Shigeo (HITACHI LTD., 2-1, Omika-cho 7-chom, Hitachi-shi Ibaraki 21, 31912, JP)
幡宮重雄 (〒21 茨城県日立市大みか町七丁目2番1号株式会社日立製作所 エネルギー・環境システム研究所内 Ibaraki, 31912, JP)
TAKAHASHI, Fumio (HITACHI LTD., 2-1, Omika-cho 7-chom, Hitachi-shi Ibaraki 21, 31912, JP)
高橋文夫 (〒21 茨城県日立市大みか町七丁目2番1号株式会社日立製作所 エネルギー・環境システム研究所内 Ibaraki, 31912, JP)
Application Number:
JP2009/000359
Publication Date:
August 05, 2010
Filing Date:
January 30, 2009
Export Citation:
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Assignee:
HITACHI-GE NUCLEAR ENERGY, LTD. (1-1 Saiwaicho 3-chome, Hitachi-shi Ibaraki, 73, 31700, JP)
日立GEニュークリア・エナジー株式会社 (〒73 茨城県日立市幸町三丁目1番1号 Ibaraki, 31700, JP)
NAMBA, Koji (HITACHI LTD., 2-1, Omika-cho 7-chom, Hitachi-shi Ibaraki 21, 31912, JP)
難波孝次 (〒21 茨城県日立市大みか町七丁目2番1号株式会社日立製作所 エネルギー・環境システム研究所内 Ibaraki, 31912, JP)
HATAMIYA, Shigeo (HITACHI LTD., 2-1, Omika-cho 7-chom, Hitachi-shi Ibaraki 21, 31912, JP)
幡宮重雄 (〒21 茨城県日立市大みか町七丁目2番1号株式会社日立製作所 エネルギー・環境システム研究所内 Ibaraki, 31912, JP)
TAKAHASHI, Fumio (HITACHI LTD., 2-1, Omika-cho 7-chom, Hitachi-shi Ibaraki 21, 31912, JP)
International Classes:
F01K7/34; F01K7/38; F01K7/40; F01K7/44; F22D1/32; F22D1/34
Attorney, Agent or Firm:
Polaire I.P.C. (7-1 Hatchobori 2-chome, Chuo-ku Tokyo, 32, 10400, JP)
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