Combined cycle power plant
US6272841A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1999 |
| Grant date | Aug 14, 2001 |
| Priority date | — |
| Expiry date | Sep 22, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A combined cycle power plant is disclosed, which has a backup function operating during the normal operation as well as when the plant is activated, so as to reliably maintain the steam cooling operation when an abnormal phenomenon occurs. In this power plant, the cool steam of the steam cooling system for cooling a high-temperature portion of the gas turbine is the high-pressure exhaust gas of the high-pressure turbine. When the exhaust gas is unexpectedly insufficient, high or medium-pressure steam output from the exhaust heat recovery boiler is introduced as cool steam into the steam cooling system, thereby reliably continuing the steam cooling operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.