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:
Mar. 11, 2003
Filed:
May. 29, 2001
Hideaki Sugishita, Takasago, JP;
Sunao Aoki, Takasago, JP;
Kazuo Uematsu, Takasago, JP;
Keizo Tsukagoshi, Tokyo, JP;
Mitsubishi Heavy Industries, Co., Ltd., Tokyo, JP;
Abstract
A combined cycle system includes a gas turbine ( ) having a generator ( ), a compressor ( ), a combustor ( ), a blade cooling air cooler ( ), a fan ( ), and a turbine ( ); a steam turbine ( ) having a high pressure turbine ( ), an intermediate pressure turbine ( ), and a low pressure turbine ( ); and a waste heat recovery boiler ( ). Saturated water from a high pressure pump ( ) is partially led into a heat exchanger ( ) for cooling steam to be supplied into a moving blade ( ) and a stationary blade ( ). Also, outlet steam from the high pressure turbine ( ) is led into the moving blade ( ), the stationary blade ( ), and the combustor transition piece ( ) for cooling thereof, and the steam is then supplied to an inlet of the intermediate pressure turbine ( ). Further, the outlet steam from the high pressure turbine ( ) is led into the turbine ( ) for cooling blades thereof. The steam used for cooling the stationary blade is supplied to the inlet of the intermediate pressure turbine ( ), and the steam used for cooling the moving blade is supplied to a reheater ( ). Thus, the efficiency is enhanced.