Combined cycle power plant with circulating fluidized bed heat transfer
US4406128A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 1981 |
| Grant date | Sep 27, 1983 |
| Priority date | — |
| Expiry date | Nov 13, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P80/15
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a combined generating plant utilizing a fluidized bed combustor in which coal or other carbonaceous fuel is burned at substantially atmospheric pressure, an external heat transfer unit is provided through which a portion of the hot solids of the fluidized bed is circulated through tubular channels. Clean air from an air compressor is passed through the heat exchanger unit around the outside of the tubular channels, so receiving heat through them from the hot solids circulating therethrough, and is expanded in a gas turbine. The flow of hot solids through the tubular channels is controlled independently of the operation of the combustor so as to accomodate varying loads on the generating units. Steam for a other uses is generated by a conventional boiler and superheater in the combustor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.