Fuel staging methods for low NOx tangential fired boiler operation
US8100064B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2005 |
| Grant date | Jan 24, 2012 |
| Priority date | — |
| Expiry date | Oct 15, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/02
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A tangential fired boiler includes a circumferential wall defining a combustion zone, the circumferential wall being generally rectangular when viewed along a generally horizontal cross-section. A fireball is disposed within the combustion zone, the fireball rotating about an imaginary axis when viewed along a generally horizontal cross-section. A corner member is disposed proximate to at least one corner of the combustion zone, with a plurality of fuel inlets disposed along the corner member. The plurality of fuel inlets inject fuel into the combustion zone, and at least some of the plurality of fuel inlets inject fuel in a direction which is angled with respect to a normal of the corner member and upstream relative to a direction of rotation of the fireball.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.