Steam cycle for combined cycle with steam cooled gas turbine
US5412937A · kind A · utility
27Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 4, 1993 |
| Grant date | May 9, 1995 |
| Priority date | — |
| Expiry date | Nov 4, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E20/16
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a combined cycle system including a gas turbine (12), a steam turbine (20) and a heat recovery steam generator (32), wherein gas turbine exhaust is used in the heat recovery steam generator (32) for reheating steam for the steam turbine (20), an improvement wherein steam is extracted from the heat recovery steam generator (32) at a location where steam pressure is highest, conducted to the gas turbine (12) for cooling hot gas turbine parts, and returned to the steam turbine (20) at the point of highest pressure admission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.