Combined cycle power plant with a once through steam generator
US6109020A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 21, 1998 |
| Grant date | Aug 29, 2000 |
| Priority date | — |
| Expiry date | Jul 21, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P80/15
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a combined cycle power plant with a gas turbine circuit and a steam turbine circuit, the exhaust gases from a gas turbine (4) transfer their residual heat to a steam turbine (9, 10) via the working medium flowing in a once through steam generator (7). The deaeration of the working medium is carried out in the hot well (12) of the steam turbine condenser (11), the deaerated working medium is introduced directly from the hot well of the condenser via a feed pump (14, 20) into the preheating surfaces (15, 21) of the once through steam generator, and a separating bottle (25) for the blowdown of impurities is arranged between the evaporation surfaces (16, 22) and the superheating surfaces (19, 23).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.