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:
Oct. 13, 1998
Filed:
Dec. 30, 1996
Wesley Paul Bauver, II, Granville, MA (US);
Combustion Engineering, Inc., Windsor, CT (US);
Abstract
A gas turbine combined cycle system with a heat recovery steam generator which may include enclosed adjacent cavities may accumulate combustible gas mixtures during shut-downs. Gas detectors located in the heat transfer section of the heat recovery steam generator, in related duct work and in the adjacent cavities detect the presence of these gas mixtures and produce appropriate signals. A signal from the detectors in the cavities initiate the aspiration of the mixture from the cavity. Signals from the detectors in the heat transfer section and ducts as well as from the cavities control the gas turbine so that upon start-up, no fuel is introduced to the gas turbine so that the gas turbine forces purge air through the heat recovery steam generator. When all of the signals indicate that no combustible gas mixtures are present, the gas turbine is ignited.