Global Patent Index - EP 2023041 A1

EP 2023041 A1 2009-02-11 - Premix burner and method for operating a premix burner

Title (en)

Premix burner and method for operating a premix burner

Title (de)

Vormischbrenner und Verfahren zum Betrieb eines Vormischbrenners

Title (fr)

Brûleur à prémélange et procédé de mise en oeuvre du brûleur

Publication

EP 2023041 A1 (DE)

Application

EP 07014820 A

Priority

EP 07014820 A

Abstract (en)

The method involves injecting an air mass flow (5) and fuel (6) e.g. synthetic gas, into a premixing zone (2) of a premixing burner (1) for forming a potential hot gas backflow area. A fluid (15) e.g. inert gas, which does not contain fuel, is injected downstream towards a fuel injection into the premixing zone. The fluid is injected into the premixing zone along the surface area of the premising zone in a main flow direction (9). The fuel is injected into the premixing zone perpendicular to the main flow direction of the air mass flow. An independent claim is also included for a premixing burner comprising a premixing zone.

Abstract (de)

Es wird ein Verfahren zum Betrieb eines Vormischbrenners (1) vorgestellt. Der Vormischbrenner (1) umfasst eine Vormischzone (2). In die Vormischzone (2) kann ein Luftmassenstrom (5) und Brennstoff (6) eingedüst werden, wobei sich ein potentielles Heißgasrückströmgebiet (8) ausbilden kann. Das erfindungsgemäße Verfahren ist dadurch gekennzeichnet, dass ein nicht brennstoffhaltiges Fluid (15) stromabwärts zur Brennstoffeindüsung in die Vormischzone (2) eingedüst wird.

IPC 8 full level (invention and additional information)

F23C 7/00 (2006.01); F23D 11/38 (2006.01); F23L 7/00 (2006.01); F23R 3/14 (2006.01)

CPC (invention and additional information)

F23C 7/004 (2013.01); F23D 11/383 (2013.01); F23L 7/00 (2013.01); F23R 3/14 (2013.01); F23R 3/286 (2013.01); F23C 2900/07001 (2013.01); F23D 2900/14021 (2013.01); F23L 2900/07002 (2013.01); F23L 2900/07009 (2013.01)

Citation (search report)

Designated contracting state (EPC)

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

Designated extension state (EPC)

AL BA HR MK RS

EPO simple patent family

EP 2023041 A1 20090211; CN 101765742 A 20100630; CN 101765742 B 20120425; EP 2171353 A1 20100407; JP 2010534782 A 20101111; US 2010183991 A1 20100722; WO 2009016079 A1 20090205

INPADOC legal status


2010-04-08 [REG DE 8566] DESIGNATED COUNTRY DE NOT LONGER VALID

2010-02-24 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20090812

2009-10-14 [AKX] PAYMENT OF DESIGNATION FEES

2009-02-11 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

2009-02-11 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: AL BA HR MK RS