Method of operating a gas turbine power plant with steam injection
US5727377A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 4, 1996 |
| Grant date | Mar 17, 1998 |
| Priority date | — |
| Expiry date | Sep 4, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P80/15
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a method of and an apparatus for operating a power station plant, essentially comprising a gas-turbine group (40, 41, 46), a waste-heat steam generator (8) and a downstream steam consumer, for example a steam turbine (1) having a generator (2), the exhaust gas of the gas-turbine group (40, 41, 46) releases heat to the water fed via a feed-water line (15) and directed in counterflow through the waste-heat steam generator (8). The steam generated is fed to the steam consumer (1) via at least one steam line (6). The water fed by the feed-water line (15) is directed through the waste-heat steam generator (8) in a once-through arrangement. The exhaust gases of the gas-turbine group (40, 41, 46) are directed through the waste-heat steam generator (8) at every operating instant. The steam generated in the waste-heat steam generator (8) is directed into the gas-turbine group (40, 41, 46) via an injection steam line (23) when the steam consumer (1) is shut off.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.