Title (en)

METHOD FOR THE COMBUSTION OF A LOW NOX PREMIX GAS BURNER

Title (de)

VERFAHREN ZUR VERBRENNUNG EINES VORMISCHUNGSGASBRENNERS MIT NIEDRIGEM NOX-GEHALT

Title (fr)

PROCÉDÉ DE COMBUSTION D'UN BRULEUR À GAZ A PREMELANGE BAS NOX

Publication

EP 2981761 B1 20200527 (FR)

Application

EP 14713173 A 20140225

Priority

• FR 1353079 A 20130405
• FR 2014050390 W 20140225

Abstract (en)

[origin: WO2014162074A1] The method of the invention comprises a premix burner formed by a group of premix nozzles (2) disposed in a circle of diameter DB around a central nozzle (4) disposed on a central axis A of the burner (1) and intended to create a radial flame (5), characterised in that the oxidizer-to-fuel ratio (R) of the group of nozzles (2, 4) is between 1.3 and 1.75. The radial flame (5) is used for the cross-lighting of the different premix nozzles (2, 4). An annular flame is also provided by premixed combustion in order to keep the ratio (R) favourable to the low production of thermal nitrogen oxides at the intersection of the radial flame and the flames from the nozzles.

IPC 8 full level

F23D 14/48 (2006.01); F23D 14/08 (2006.01); F23D 14/58 (2006.01); F23D 23/00 (2006.01); F23M 5/02 (2006.01)

CPC (source: EP)

F23D 14/085 (2013.01); F23D 14/48 (2013.01); F23D 14/58 (2013.01); F23D 23/00 (2013.01); F23M 5/025 (2013.01); F23D 2900/00008 (2013.01)

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

DOCDB simple family (publication)

WO 2014162074 A1 20141009; CN 105247285 A 20160113; CN 105247285 B 20170426; EP 2981761 A1 20160210; EP 2981761 B1 20200527; ES 2813361 T3 20210323; FR 3004239 A1 20141010; FR 3004239 B1 20201023; KR 101878346 B1 20180817; KR 20150139575 A 20151211; PL 2981761 T3 20201116

DOCDB simple family (application)

FR 2014050390 W 20140225; CN 201480028810 A 20140225; EP 14713173 A 20140225; ES 14713173 T 20140225; FR 1353079 A 20130405; KR 20157031569 A 20140225; PL 14713173 T 20140225