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:
May. 28, 2013
Filed:
Jan. 30, 2009
Koji Namba, Mito, JP;
Shigeo Hatamiya, Hitachi, JP;
Fumio Takahashi, Hitachi, JP;
Koji Nishida, Hitachiota, JP;
Susumu Nakano, Hitachi, JP;
Takanori Shibata, Hitachinaka, JP;
Koji Namba, Mito, JP;
Shigeo Hatamiya, Hitachi, JP;
Fumio Takahashi, Hitachi, JP;
Koji Nishida, Hitachiota, JP;
Susumu Nakano, Hitachi, JP;
Takanori Shibata, Hitachinaka, JP;
Hitachi-GE Nuclear Energy, Ltd., Hitach-shi, JP;
Abstract
An electric power plant supplies steam generated to a high-pressure turbine and a low-pressure turbine. The steam discharged from the low-pressure turbine is condensed with a condenser. Water generated with the condenser is heated with a low-pressure feed water heater and a high-pressure feed water heater. The steam extracted from the high-pressure turbine is supplied to the high-pressure feed water heater. The steam extracted from the low-pressure turbine is compressed with a steam compressor, and the steam whose temperature has been increased is then supplied to the high-pressure feed water heater. The feed water is heated in the high-pressure feed water heater by the steam extracted from the high-pressure turbine and the steam compressed with the steam compressor. Because the feed water is heated by the extracted steam and the compressed steam in the high-pressure feed water heater, the amount of power consumed by the steam compressor can be reduced.