Global Patent Index - EP 2479491 A1

EP 2479491 A1 20120725 - Method and burner for burning lean gas in a power plant boiler

Title (en)

Method and burner for burning lean gas in a power plant boiler

Title (de)

Verfahren und Brenner zum Verbrennen von Schwachgas in einem Kraftwerksboiler

Title (fr)

Procédé et brûleur pour brûler du gaz pauvre dans une chaudière de centrale électrique

Publication

EP 2479491 A1 20120725 (EN)

Application

EP 11151532 A 20110120

Priority

EP 11151532 A 20110120

Abstract (en)

To burn lean fuel gas in a furnace of a power plant boiler, a fuel gas flow is fed into the furnace via a fuel pipe (1), a primary air flow is fed centrally into the fuel gas flow discharging from an outlet (14) of the fuel pipe (1), and a secondary air flow is fed peripherally into the fuel gas flow discharging from the outlet (14) of the fuel pipe (1). The outlet (14) is provided with an inner stabilizing ring (4) and an outer stabilizing ring (8), both boosting flame ignition. The primary air channel (2) is provided with a first swirler (3) and the secondary air channel (6) is provided with a second swirler (7) to set the respective air flows into a rotation.

IPC 8 full level

F23C 7/00 (2006.01); F23D 14/24 (2006.01); F23D 14/70 (2006.01); F23D 17/00 (2006.01)

CPC (source: EP)

F23C 7/004 (2013.01); F23D 14/24 (2013.01); F23D 14/70 (2013.01); F23D 17/005 (2013.01); F23D 2201/20 (2013.01); F23D 2203/10 (2013.01); F23D 2204/20 (2013.01)

Citation (applicant)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 2479491 A1 20120725; EP 2479491 B1 20140326; PL 2479491 T3 20140829; WO 2012098174 A1 20120726

DOCDB simple family (application)

EP 11151532 A 20110120; EP 2012050745 W 20120119; PL 11151532 T 20110120