Flue gas recirculation system with fresh air purge for burners
US5195883A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 1992 |
| Grant date | Mar 23, 1993 |
| Priority date | — |
| Expiry date | Apr 1, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23C9/00
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Flue gas is captured from an emissions stack and recirculated to a burner by an induced flue gas recirculation system comprising: a mixing assembly for mixing combustion air and recirculated flue gas into a substantially homogeneous mix; a burner assembly for mixing and combusting the combustible mix with a fuel to produce a flue gas; an injection assembly, connected to and downstream from the mixing assembly and connected to and upstream from the burner assembly, for receiving the combustible mix from the mixing assembly and injecting it with the combustible fuel into the burner assembly; a combustion chamber connected to and downstream of the burner assembly for containing the combustible mix and flue gas; an emissions stack connected to and downstream from the combustion chamber for venting the flue gas from the combustion chamber; recirculating means for recirculating a portion of the flue gas from the emissions stack to the mixing assembly; and a purge assembly connected to the recirculating means for removing the recirculated flue gas from the recirculating means prior to initiating the operation of the burner assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.