Hybrid dual cycle vapor generation
US6105369A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 13, 1999 |
| Grant date | Aug 22, 2000 |
| Priority date | — |
| Expiry date | Jan 13, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF22B33/18
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A vapor generator includes a first plurality of tubes configured to direct a multicomponent working fluid so as to be subjected to process heat from a direct fired source, and a second plurality of tubes configured to direct a single component working fluid so as to be subjected to the process heat. The first plurality of tubes form a furnace wall with the multicomponent working fluid being supplied to the furnace wall in a vapor state. The multicomponent working fluid absorbs a portion of the process heat from the furnace wall thereby cooling the furnace wall. A backpass receives flue gases, and the second plurality of tubes are located in the backpass to absorb heat from the flue gases of the backpass so that the single component working fluid increases in temperature and the flue gases are cooled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.