Global Patent Index - EP 1467148 B1

EP 1467148 B1 20070718 - Air system for a fluidized-bed boiler

Title (en)

Air system for a fluidized-bed boiler

Title (de)

Luftsystem für einen Wirbelbettkessel

Title (fr)

Système d'air pour une chaudière à lit fluidisé

Publication

EP 1467148 B1 20070718 (EN)

Application

EP 04100940 A 20040309

Priority

FI 20030542 A 20030410

Abstract (en)

[origin: EP1467148A2] A method for supplying upper combustion air from an upper air supply level (10, 11) into a fluidized-bed boiler (1), which boiler is provided with at least a lower air supply (9) underneath the fluidized bed (4) and a fuel supply means (5) above the fluidized bed, as well as one or more upper air supply levels (10, 11) for supplying upper air into the furnace (2) of the boiler, which furnace is limited by a front wall (12), side walls (14, 15) and a rear wall (13) with the nose (6) of the boiler, the air supply level (10, 11) underneath the nose comprising at least side air jets (17) placed in the side walls (14, 15) of the furnace (2) On the air supply level (10, 11), which also comprises at least one or more primary air jets (16) placed in the front wall (12) of the furnace (2), an air flow (18) is supplied from the primary air jet into the furnace, which air flow (18) is stronger than the air flow (19) supplied from the side jet (17) into the furnace. The invention also relates to an air arrangement and a fluidized-bed boiler (1) implementing the method. <IMAGE>

IPC 8 full level

F23C 10/02 (2006.01); F23C 5/28 (2006.01); F23C 10/04 (2006.01); F23C 10/18 (2006.01); F23C 10/20 (2006.01); F23C 10/28 (2006.01); F23L 1/00 (2006.01); F23L 9/04 (2006.01)

CPC (source: EP)

F23C 5/28 (2013.01); F23C 10/18 (2013.01); F23C 10/28 (2013.01); F23L 9/04 (2013.01)

Citation (examination)

None

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

EP 1467148 A2 20041013; EP 1467148 A3 20050105; EP 1467148 B1 20070718; AT 367557 T 20070815; DE 602004007569 D1 20070830; DE 602004007569 T2 20080410; ES 2288240 T3 20080101; FI 114114 B 20040813; FI 20030542 A0 20030410

DOCDB simple family (application)

EP 04100940 A 20040309; AT 04100940 T 20040309; DE 602004007569 T 20040309; ES 04100940 T 20040309; FI 20030542 A 20030410