Liquid heaters and vaporizers – Miscellaneous
Patent
1994-02-18
1994-11-15
Favors, Edward G.
Liquid heaters and vaporizers
Miscellaneous
110245, 16510416, 422145, F22B 100
Patent
active
053638123
ABSTRACT:
Bed temperature in a circulating fluidized bed (CFB) reactor is controlled by varying a recirculation rate of particles collected by a secondary particle separator back to the CFB reactor. Particle storage means, sized to contain sufficient inventory required for bed inventory/temperature control due to fuel/sorbent variations and/or load changes, stores particles collected by the secondary particle separator. The storage means can be either directly below the secondary particle separator or at a remote location. Particles collected by the secondary particle separator rather than by the primary particle separator are preferred due to their smaller size and lower temperature. A bed temperature control system controls the recirculation rate of these particles back to the reactor. Level sensing devices are provided on the storage means. A solids storage level control system that interacts with the bed temperature control system controls the solids inventory in the storage means via a purge system.
REFERENCES:
patent: 2083764 (1937-06-01), Weisgerber
patent: 3759014 (1973-06-01), Van Dyken et al.
patent: 4165717 (1979-08-01), Reb et al.
patent: 4253425 (1981-03-01), Gamble et al.
patent: 4532287 (1985-08-01), Van Gasselt et al.
patent: 4538549 (1985-08-01), Stromberg
patent: 4589352 (1986-05-01), Van Gasselt et al.
patent: 4640201 (1987-02-01), Holmes et al.
patent: 4672918 (1987-06-01), Engstrom et al.
patent: 4679511 (1987-07-01), Holmes et al.
patent: 4683840 (1987-08-01), Morin
patent: 4699068 (1987-10-01), Engstrom
patent: 4708092 (1987-11-01), Engstrom
patent: 4717404 (1988-01-01), Fore
patent: 4730563 (1988-03-01), Thornblad
patent: 4732113 (1988-03-01), Engstrom
patent: 4770237 (1988-09-01), Morin et al.
patent: 4891052 (1990-01-01), Belin et al.
patent: 4915061 (1990-04-01), Garcia-Mallol
patent: 4962711 (1990-10-01), Yamauchi et al.
patent: 4992085 (1991-02-01), Belin et al.
patent: 5025755 (1991-06-01), Eickvonder et al.
patent: 5060599 (1991-10-01), Chambert
patent: 5159886 (1992-11-01), Schaub et al.
patent: 5218932 (1993-06-01), Abdulally
"Coal-fired CFB boilers with an Alternate Particle Collector" Alexander & Walker, Presented to Pittsburgh Coal Conference, Pittsburgh, Pa., Sep. 10-14, 1990, Entire Paper.
"Coal-Fired Boilers-Babcock & Wilcox's Experience," Belin, Price & Warrick-Presented to International Joint Power Generation Conference, San Diego, Calif., Oct. 6-10, 1991 Entire Paper.
"Circulating Fluidized Bed Boiler, Design Refinements", Walker, Presented to Council of Industrial Boiler Owners, Fluid Bed VII Seminar, Indianapolis, Ind., Dec. 8-10, 1991 20 pages.
"Clean Energy for the World", Belin & Flynn-Circulating Fluidized Bed Boiler Solids System with in-Furnace Particle Separator Proceedings of the 1991 International Conference on Fluidized Bed Combustion, Montreal, Canada, Apr. 21-24, 1991 pp. 287-294.
"Coal & Waste Coal-Fired CFB Boilers Accumulate Operating Experience," Price & Walker, Presented to 12th International Conference on Fluidized Bed Combustion, May 8-13 1993, La Jolla, Calif., Entire Paper.
"Waste Wood Combustion in Circulation Fluidized Bed Boilers" Belin, James, Warrick, Presented to Second International Conference on Circulating Fluidized Beds, Mar. 14-18, 1988, Compaigne, France, Entire Paper.
"Lauhoff Grain Coal-Fired CFB Boiler-Design Start-Up & Operation," Belin, James, Kraft, Schaper, Presented to Intl. Joint Power Generation Conference, Boston, Mass., Oct. 21-25, 1990 Entire Paper.
"Design & Construction of the Lauhoff Grain CFB Cogeneration Project" Johns, Presented to Kentucky Industrial Coal Conference, University of Kentucky, Lexington, Ky., Apr. 12-13, 1989 Entire Paper.
"2.5 MWth Circulating FBC Research Facility; Design & Start Up Experiences" Hooper & Flynn, Presented to American Power Conference, Chicago, Ill., Apr. 23-25, 1990 Entire Paper.
"Foster Wheeler's Answer to Meeting the Challenge; Large Scale CFB Unit Design for the Electric Utility Market" Abdulally & Cox, Perrysville, N.J., entire Paper Date Unknown.
"Update of Waste Fuel Firing Experience in Foster Wheeler Circulating Fluidized Bed Boilers", Abdullay & Navazo Presented at Power-Gen '93 Asia, Singapore, Sep. 13-15, 1993 & Power-Gen '93 Americas, Dallas, Tex., Nov. 11-19, 1993 Entire Paper.
"An Update of Operational Experiences at NISCO" Voyles & Zierold Presented at Power-Gen Americas, '93, Nov. 17-19, 1993 & CIBO Fluidized IX, Bakersfield, Calif., Dec. 7-8, 1993 Entire Paper.
Alexander Kiplin C.
Belin Felix
James David E.
Edwards Robert J.
Favors Edward G.
Marich Eric
The Babcock & Wilcox Company
LandOfFree
Method and apparatus for controlling the bed temperature in a ci does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for controlling the bed temperature in a ci, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for controlling the bed temperature in a ci will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1090471