Secondary air control damper arrangement
US4425855A · kind A · utility
22Cited by
5References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 4, 1983 |
| Grant date | Jan 17, 1984 |
| Priority date | — |
| Expiry date | Mar 4, 2003 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23L13/02
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The outline of a tangentially-fired furnace combustion chamber is arranged to show a representative windbox in one corner of the furnace. The secondary air is disclosed as supplied through one set of vertically tiltable nozzles mounted in the windbox. The secondary air supply conduit is mounted to feed the tiltable nozzles. The secondary air supply conduit section adjacent to the nozzles has straightening vanes forming channels in which independently controlled louvers regulate the total cross-sectional area of the channels to maintain the desired velocity of the secondary air through the nozzles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.