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:
Dec. 16, 1997
Filed:
Aug. 15, 1995
Akihiro Kawauchi, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A fully-fired combined plant includes a boiler, a boiler feed air line provided with an air heater for feeding heated air to the boiler, a gas turbine, a gas turbine exhaust gas line connected to the gas turbine and the boiler feed air line downstream of the air heater for feeding exhaust gas from the gas turbine into the boiler feed air line. A shutter is provided on the gas turbine exhaust gas line for shutting the line at the time the operation of the gas turbine is stopped, and a ventilator is provided on the gas turbine exhaust gas line on the upstream side of the shutter with respect to a gas turbine exhaust gas flow for ventilating the gas turbine exhaust gas line on the upstream side of the shutter.