Circulating fluidized bed steam generator (CFB) with a superheater and a reheater
US5822991A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 1997 |
| Grant date | Oct 20, 1998 |
| Priority date | — |
| Expiry date | Feb 14, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23C2206/103
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A method for exercising control over the final predefined superheat outlet steam temperature and for exercising control over the final predefined reheat outlet steam temperature from a circulating fluidized bed steam generator having a furnace volume embodying at least superheat surface, a multichambered backpass volume embodying at least superheat surface within one chamber of the multichambered backpass volume and at least reheat surface within another one of the multichambered backpass volume, a first circulatory fluid flow path operative as an evaporative steam loop, and a second circulatory fluid flow path operative as a superheat steam-reheat steam loop and including a saturated steam segment, a superheat steam segment, a reheat steam segment and an economizer segment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.