EP 0362551 A3 19910102 - PROCESS AND SYSTEM TO SUSTAIN A CONTROLLED VARIABLE IN A FLUIDISED-BED COMBUSTION PLANT

Title (en)

PROCESS AND SYSTEM TO SUSTAIN A CONTROLLED VARIABLE IN A FLUIDISED-BED COMBUSTION PLANT

Publication

EP 0362551 A3 19910102 (DE)

Application

EP 89115969 A 19890830

Priority

DE 3833489 A 19881001

Abstract (en)

[origin: EP0362551A2] To maintain a constant regulating variable, particularly of the bed temperature of a fluidized-bed combustion plant, a regulating element (24) is used which is arranged in a feed line (20) for feeding fluidization air to a syphon (15), via which solid matter separated from the flue gas of the fluidized-bed combustion plant is fed back into the fluidized bed (5). The actuating drive (23) of the regulating element (24) is coupled to a temperature sensor (27) arranged in the fluidized bed (5), in such a manner that the quantity of fluidizing air is increased when the measured bed temperature exceeds a predetermined value. The quantity of fluidizing air is reduced when the measured bed temperature drops below the predetermined value. <IMAGE>

IPC 1-7

F23C 11/02; F22B 31/00; F22B 35/00; F23N 5/00

IPC 8 full level

F23C 10/28 (2006.01); F22B 31/00 (2006.01); F22B 35/00 (2006.01); F23C 10/00 (2006.01); F23C 10/02 (2006.01); F23C 10/10 (2006.01); F23C 10/32 (2006.01); F23N 5/00 (2006.01); F23N 5/02 (2006.01); F23N 1/02 (2006.01)

CPC (source: EP US)

F22B 31/0084 (2013.01 - EP US); F23C 10/005 (2013.01 - EP US); F23C 10/10 (2013.01 - EP US); F23C 10/32 (2013.01 - EP US); F23N 5/02 (2013.01 - EP US); F23N 1/02 (2013.01 - EP US); F23N 2225/16 (2020.01 - EP US); F23N 2237/18 (2020.01 - EP US)

Citation (search report)

[Y] EP 0158033 A2 19851016 - STUDSVIK ENERGITEKNIK AB [SE]
[Y] EP 0093063 A1 19831102 - CREUSOT LOIRE [FR]
[A] US 4442797 A 19840417 - STROHMEYER JR CHARLES [US]
[A] DE 3343870 A1 19850718 - HUTHER & CO [DE]

Designated contracting state (EPC)

AT CH DE FR GB IT LI NL SE

DOCDB simple family (publication)

EP 0362551 A2 19900411; EP 0362551 A3 19910102; EP 0362551 B1 19930526; AT E89906 T1 19930615; DD 284962 A5 19901128; DE 3833489 A1 19900405; DE 58904476 D1 19930701; JP 2822064 B2 19981105; JP H02247407 A 19901003; US 5003931 A 19910402

DOCDB simple family (application)

EP 89115969 A 19890830; AT 89115969 T 19890830; DD 33307189 A 19890928; DE 3833489 A 19881001; DE 58904476 T 19890830; JP 24324689 A 19890919; US 41490289 A 19890929