Real time optimization and control of oxygen enhanced boilers

Liquid heaters and vaporizers – Automatic control of fluid fuel and water

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C110S234000

Reexamination Certificate

active

07401577

ABSTRACT:
An oxygen enriched boiler having a burner subassembly and a steam subassembly is disclosed. The burner subassembly has a fuel inlet, an oxidant inlet, a combustion chamber, a flue gas composition detector and a flue gas outlet. The fuel inlet provides fuel to the combustion chamber, the oxidant inlet provides an oxygen-enriched inlet stream to the combustion chamber, the combustion chamber burns the fuel and the flue gas composition detector measures at least one characteristic of the flue gas. The steam subassembly has a supply water inlet, a heat exchange zone, a water drum, a steam quality actuator and a steam outlet. The supply water inlet provides feed water to the heat exchange zone, the heat exchange zone transfers heat generated by combustion of the fuel to the water to generate steam, the water drum receives the heated water and steam from the heat transfer zone and maintains the water and steam at a selected steam pressure and water level, and the steam quality actuator regulates at least one characteristic of the steam. Flue gas characteristics, as well as other boiler performance variables, are monitored. At least one controller actuates on the oxidant injections to control combustion. The controller calculates the optimum oxidant distribution in real-time for a series of injection points to minimize undesired flue gas emissions while maintaining the desired steam conditions and boiler operating conditions.

REFERENCES:
patent: 4027145 (1977-05-01), McDonald et al.
patent: 4362269 (1982-12-01), Rastogi et al.
patent: 4457266 (1984-07-01), La Spisa
patent: 4497283 (1985-02-01), LaSpisa et al.
patent: 4619224 (1986-10-01), Takita et al.
patent: 4622922 (1986-11-01), Miyagaki et al.
patent: 4707778 (1987-11-01), Yamada et al.
patent: 5052310 (1991-10-01), Goff et al.
patent: 5688296 (1997-11-01), Andrus, Jr. et al.
patent: 5762008 (1998-06-01), Martin et al.
patent: 5943865 (1999-08-01), Cohen
patent: 6093372 (2000-07-01), Wallace et al.
patent: 6507774 (2003-01-01), Reifman et al.
patent: 6520122 (2003-02-01), Kemp et al.
patent: 6918356 (2005-07-01), Rowe et al.
patent: 2002/0192609 (2002-12-01), Havlena
patent: 2003/0000436 (2003-01-01), Havlena
patent: 2003/0014131 (2003-01-01), Havener et al.
patent: 893251 (1962-04-01), None
patent: 59157420 (1984-06-01), None
May 27, 2004, International Search Report.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Real time optimization and control of oxygen enhanced boilers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Real time optimization and control of oxygen enhanced boilers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Real time optimization and control of oxygen enhanced boilers will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2754042

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.