Velocity damper for a recovery boiler
US11226095B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2020 |
| Grant date | Jan 18, 2022 |
| Priority date | — |
| Expiry date | Jun 17, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F2140/40
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A method is provided for controlling airflow into a furnace that employs a velocity type damper. In one embodiment, the method for controlling airflow may include engaging a velocity type damper to an air port opening of a furnace. The velocity type damper includes at least one air controlling surface that is positioned proximate to a wall of the furnace at the air port opening so that air velocity exiting the at least one air controlling surface is substantially equal to the air velocity entering the air port opening to the furnace. The method may further include adjusting a cross sectional area through the velocity type damper to control air velocity into the furnace through the air port opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.