EP2258983A3 - Mixing device for a gas burner - Google Patents

Mixing device for a gas burner Download PDF

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Publication number
EP2258983A3
EP2258983A3 EP10003809.0A EP10003809A EP2258983A3 EP 2258983 A3 EP2258983 A3 EP 2258983A3 EP 10003809 A EP10003809 A EP 10003809A EP 2258983 A3 EP2258983 A3 EP 2258983A3
Authority
EP
European Patent Office
Prior art keywords
section
mixing
combustion air
gas
venturi device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP10003809.0A
Other languages
German (de)
French (fr)
Other versions
EP2258983A2 (en
EP2258983B1 (en
Inventor
Willem Super
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Garrett Motion SARL
Original Assignee
Honeywell Technologies SARL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Honeywell Technologies SARL filed Critical Honeywell Technologies SARL
Publication of EP2258983A2 publication Critical patent/EP2258983A2/en
Publication of EP2258983A3 publication Critical patent/EP2258983A3/en
Application granted granted Critical
Publication of EP2258983B1 publication Critical patent/EP2258983B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/62—Mixing devices; Mixing tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/62—Mixing devices; Mixing tubes
    • F23D14/64—Mixing devices; Mixing tubes with injectors

Abstract

Die Erfindung betrifft eine Mischvorrichtung (10) für einen Gasbrenner, mit einem einen Verbrennungslufteinlass (13), einen Gaseinlass (14) und einen Auslass (15) für die Mischung aus Gas und Verbrennungsluft aufweisenden Gehäuse (11), und mit einer im Gehäuse positionierten Venturi-Einrichtung (12), wobei die Venturi-Einrichtung (12) unter Ausbildung eines Kontraktionsabschnitts, eines Mischabschnitts und eines Diffusorabschnitts derart konturiert ist, dass ausgehend vom Verbrennungslufteinfass (13) dem Mischabschnitt über den sich in Richtung auf den Mischabschnitt verengenden Kontraktionsabschnitt die Verbrennungsluft zuführbar ist, und dass ausgehend vom Mischabschnitt über den sich erweiternden Diffusorabschnitt dem Auslass (15) die Mischung aus Gas und Verbrennungsluft zuführbar ist. Erfindungsgemäß weist der Mischabschnitt der Venturi-Einrichtung mehrere Düsenabschnitte (22) auf, die Teilmischabschnitte (23) ausbilden, über die der Verbrennungsluft das Gas zumischbar ist, wobei jeder der mehreren Teilmischabschnitte jeweils einen kleineren Durchmesser bzw. Querschnitt aufweist als der aus denselben zusammengesetzte Mischabschnitt (20) der Venturi-Einrichtung. (Fig. 3)

Figure imgaf001
The invention relates to a mixing device (10) for a gas burner, comprising a housing (11) having a combustion air inlet (13), a gas inlet (14) and an outlet (15) for the mixture of gas and combustion air, and having a housing positioned in the housing Venturi device (12), wherein the Venturi device (12) is contoured to form a contraction section, a mixing section and a diffuser section such that, starting from the combustion air inlet (13) the combustion section over the contraction section narrowing towards the mixing section can be supplied, and that starting from the mixing section on the expanding diffuser section to the outlet (15), the mixture of gas and combustion air can be fed. According to the invention, the mixing section of the venturi device comprises a plurality of nozzle sections (22) forming sub-mixing sections (23) through which the gas is admixable to the combustion air, each of the plurality of sub-mixing sections each having a smaller diameter or cross-section than the mixing section composed thereof (20) the Venturi device. (Fig. 3)
Figure imgaf001
EP10003809.0A 2009-06-05 2010-04-09 Mixer device for a gas burner Active EP2258983B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009024269A DE102009024269A1 (en) 2009-06-05 2009-06-05 Mixing device for a gas burner

Publications (3)

Publication Number Publication Date
EP2258983A2 EP2258983A2 (en) 2010-12-08
EP2258983A3 true EP2258983A3 (en) 2014-09-03
EP2258983B1 EP2258983B1 (en) 2019-11-20

Family

ID=42710597

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10003809.0A Active EP2258983B1 (en) 2009-06-05 2010-04-09 Mixer device for a gas burner

Country Status (2)

Country Link
EP (1) EP2258983B1 (en)
DE (1) DE102009024269A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011076106B4 (en) 2011-05-19 2012-12-06 Mtu Friedrichshafen Gmbh Gas mixer, gas mixing system, gas engine
CN103016210B (en) * 2011-09-28 2015-12-09 湖南省力宇燃气动力有限公司 A kind of gas-engine mixer
DE102011086321B4 (en) 2011-11-14 2013-07-25 Mtu Friedrichshafen Gmbh Gas mixer and gas mixing system
CN103574612A (en) * 2012-07-31 2014-02-12 樱花卫厨（中国）股份有限公司 Gas mixing device for completely-premixed combustion system
DE102016113588A1 (en) * 2016-07-22 2018-01-25 Ebm-Papst Landshut Gmbh Gas-air mixing device
CN109838786B (en) * 2017-11-28 2024-03-29 芜湖美的厨卫电器制造有限公司 Gas mixing device and gas water heater
GB2595501A (en) * 2020-05-28 2021-12-01 Bosch Thermotechnology Ltd Uk Venturi-type mixing nozzle and combustion device with a venturi-type mixing nozzle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0685684A2 (en) * 1994-06-03 1995-12-06 Buderus Heiztechnik GmbH Atmospheric gas burner
EP0846916A2 (en) * 1996-12-06 1998-06-10 SIT LA PRECISA S.r.l. An air-gas mixing device particularly for gas burners with forced ventilation
WO2002029319A1 (en) * 2000-10-03 2002-04-11 Sit La Precisa S.P.A. An improved air-gas mixer device
DE102004054796B3 (en) * 2004-11-12 2006-03-16 Robert Bosch Gmbh Mixer unit e.g. for gas premix burner, has combustion air channel which moves air downstream into blower for promotion of gas air mixture to burner surface, as well as to attached gas armature

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4100733A (en) * 1976-10-04 1978-07-18 United Technologies Corporation Premix combustor
US4763481A (en) * 1985-06-07 1988-08-16 Ruston Gas Turbines Limited Combustor for gas turbine engine
US4845952A (en) * 1987-10-23 1989-07-11 General Electric Company Multiple venturi tube gas fuel injector for catalytic combustor
NL9500563A (en) * 1995-03-23 1996-11-01 Tno Venturi mixing device.
DE29617621U1 (en) 1995-11-14 1997-08-28 Honeywell Bv Mixing device with venturi nozzle
DE19729047C1 (en) * 1997-07-08 1998-09-24 Honeywell Bv Air mixer for gas burner
DE19733768C2 (en) * 1997-08-05 2003-06-26 Dungs Karl Gmbh & Co Fuel gas introduction device for a gas premix burner
DE19743464C1 (en) 1997-10-01 1998-11-12 Honeywell Bv Venturi nozzle for mixing gas-burner air-gas charge
US6623154B1 (en) * 2000-04-12 2003-09-23 Premier Wastewater International, Inc. Differential injector
US6460345B1 (en) * 2000-11-14 2002-10-08 General Electric Company Catalytic combustor flow conditioner and method for providing uniform gasvelocity distribution
US6983600B1 (en) * 2004-06-30 2006-01-10 General Electric Company Multi-venturi tube fuel injector for gas turbine combustors

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0685684A2 (en) * 1994-06-03 1995-12-06 Buderus Heiztechnik GmbH Atmospheric gas burner
EP0846916A2 (en) * 1996-12-06 1998-06-10 SIT LA PRECISA S.r.l. An air-gas mixing device particularly for gas burners with forced ventilation
WO2002029319A1 (en) * 2000-10-03 2002-04-11 Sit La Precisa S.P.A. An improved air-gas mixer device
DE102004054796B3 (en) * 2004-11-12 2006-03-16 Robert Bosch Gmbh Mixer unit e.g. for gas premix burner, has combustion air channel which moves air downstream into blower for promotion of gas air mixture to burner surface, as well as to attached gas armature

Also Published As

Publication number Publication date
EP2258983A2 (en) 2010-12-08
DE102009024269A1 (en) 2010-12-09
EP2258983B1 (en) 2019-11-20

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