Method and apparatus for real-time monitoring of furnace flue gases
US7022992B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2002 |
| Grant date | Apr 4, 2006 |
| Priority date | — |
| Expiry date | Aug 21, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/8585
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for monitoring the flue gases of a furnace combustion process is disclosed. A by-pass circuit that communicates a sample of flue gases to be monitored from a furnace, through a measurement chamber and back to the furnace or furnace exhaust duct is provided. The by-pass circuit has a gas sampling probe with a fume inlet opening, the probe being positioned for withdrawing the sample to be monitored and transmitting it through the by-pass circuit. A measurement device is positioned in the measurement chamber and comprises an in situ optical device which provides real-time measurement of targeted flue gas species concentrations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.