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:
Jan. 15, 2002
Filed:
Nov. 02, 2000
Sachio Shibuya, Tokyo, JP;
Yoichi Sugimori, Yokohama, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A combined cycle power generation plant generally comprises a gas turbine plant, a steam turbine plant and an exhaust heat recovery boiler, which further includes a low temperature reheat steam system for supplying a turbine exhaust steam from a high pressure turbine of the steam turbine plant to a reheater of the exhaust heat recovery boiler, a cooling steam supply system which branches from the low temperature reheat steam system and supplies the turbine exhaust steam to the high temperature section as a cooling steam, an intermediate pressure superheater steam system which is connected to the cooling steam supply system and adapted to join a steam supplied from an intermediate pressure superheater of the exhaust heat recovery boiler together with the turbine exhaust steam, a reheat steam system connecting the reheater of the exhaust heat recovery boiler and the intermediate pressure turbine, a cooling steam recovery system which recovers a steam after cooling the gas turbine high temperature section to the reheat steam system, a bypass system which branches a superheat steam pipe connecting an outlet of a first high pressure superheater of the exhaust heat recovery boiler and an inlet of a second high pressure superheater thereof, and a main steam system which supplies a steam from the bypass system to the high pressure turbine.