EP2278224A3 - Air-gas mixer device, particularly for premix burner - Google Patents

Air-gas mixer device, particularly for premix burner Download PDF

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Publication number
EP2278224A3
EP2278224A3 EP10169982A EP10169982A EP2278224A3 EP 2278224 A3 EP2278224 A3 EP 2278224A3 EP 10169982 A EP10169982 A EP 10169982A EP 10169982 A EP10169982 A EP 10169982A EP 2278224 A3 EP2278224 A3 EP 2278224A3
Authority
EP
European Patent Office
Prior art keywords
axis
rotation
air
converging
mixer 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
EP10169982A
Other languages
German (de)
French (fr)
Other versions
EP2278224B1 (en
EP2278224A2 (en
Inventor
Antonio Ranalli
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.)
Sit SpA
Original Assignee
LN 2 Srl a socio unico
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 LN 2 Srl a socio unico filed Critical LN 2 Srl a socio unico
Publication of EP2278224A2 publication Critical patent/EP2278224A2/en
Publication of EP2278224A3 publication Critical patent/EP2278224A3/en
Application granted granted Critical
Publication of EP2278224B1 publication Critical patent/EP2278224B1/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
    • F23D14/34—Burners specially adapted for use with means for pressurising the gaseous fuel or the combustion air
    • F23D14/36—Burners specially adapted for use with means for pressurising the gaseous fuel or the combustion air in which the compressor and burner form a single unit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L5/00—Blast-producing apparatus before the fire
    • F23L5/02—Arrangements of fans or blowers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Gas Burners (AREA)
  • Feeding And Controlling Fuel (AREA)

Abstract

An air-gas mixer device, particularly for the premix burner equipment of condensing boilers, comprising flow guide means for guiding an air-gas mixture into the intake section (3a) of a centrifugal fan (2) unit with a predetermined axis of rotation (X), said intake section being coaxial with said axis of rotation, said guide means including a Venturi effect conduit structure (5) with contiguous converging and diverging portions delimiting a constricted section to which the gas flow is fed for mixing with the air flow fed through the converging conduit portion, wherein said guide conduit structure (5) is axially symmetrically developed with a main axis of symmetry coinciding with said axis of rotation (X) and is defined by the rotation about said axis of a flat section with respective contiguous converging and diverging portions (5a, 5b), which is positioned radially and is spaced apart from the axis and on whose plane said axis of rotation (X) lies.
EP20100169982 2009-07-22 2010-07-19 Air-gas mixer device, particularly for premix burner Active EP2278224B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITPD2009A000215A IT1395189B1 (en) 2009-07-22 2009-07-22 AIR-GAS MIXER DEVICE, PARTICULARLY FOR PRE-MIXING BURNER APPLIANCES.

Publications (3)

Publication Number Publication Date
EP2278224A2 EP2278224A2 (en) 2011-01-26
EP2278224A3 true EP2278224A3 (en) 2013-02-27
EP2278224B1 EP2278224B1 (en) 2014-12-17

Family

ID=41796107

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20100169982 Active EP2278224B1 (en) 2009-07-22 2010-07-19 Air-gas mixer device, particularly for premix burner

Country Status (2)

Country Link
EP (1) EP2278224B1 (en)
IT (1) IT1395189B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105612386A (en) * 2013-07-05 2016-05-25 西特股份公司 An air-gas mixer device for premix burner equipment
CN111042869B (en) * 2019-12-24 2022-06-21 哈尔滨工程大学 Small centripetal turbine adopting axial air inlet mode with straight guide vanes

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPD20110372A1 (en) * 2011-11-24 2013-05-25 Ln 2 Srl Socio Unico AIR-GAS MIXER DEVICE FOR COMBUSTIBLE GAS BURNERS WITH PRE-MIXING
EP3015768B1 (en) * 2014-10-29 2019-02-20 Honeywell Technologies Sarl Assembly comprising a gas valve, a fan, a gas/air mixer and a burner door
US10718518B2 (en) 2017-11-30 2020-07-21 Brunswick Corporation Systems and methods for avoiding harmonic modes of gas burners
EP3531017B1 (en) * 2018-02-26 2020-10-21 Honeywell Technologies Sarl Gas/air mixing device for a gas burner and assembly comprising a gas/air mixing device and a fan
US11441772B2 (en) * 2018-07-19 2022-09-13 Brunswick Corporation Forced-draft pre-mix burner device
CN110966602B (en) * 2018-09-30 2021-11-02 宁波方太厨具有限公司 Burner for gas stove
CN116261625A (en) 2020-07-28 2023-06-13 康明斯公司 Gaseous fuel-air mixer with higher mixing uniformity
US11608983B2 (en) 2020-12-02 2023-03-21 Brunswick Corporation Gas burner systems and methods for calibrating gas burner systems
US11940147B2 (en) 2022-06-09 2024-03-26 Brunswick Corporation Blown air heating system

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2603411A (en) * 1948-02-28 1952-07-15 Trumpa Ewald Blower inlet control device
US2905375A (en) * 1958-01-14 1959-09-22 Hanus John Air mixing and flow control device
EP0656507A2 (en) * 1993-12-03 1995-06-07 VIESSMANN WERKE GmbH & CO. Gas premix burner
JPH08128609A (en) * 1994-10-31 1996-05-21 Miura Co Ltd Fan equipped with fuel gas mixing mechanism
EP0834695A1 (en) * 1996-10-03 1998-04-08 Gianmario Invernizzi A device for supplying a gas-air mixture to burners, particularly for heating apparatuses
EP0896191A2 (en) * 1997-08-05 1999-02-10 Karl Dungs GmbH & Co. Fuel gas admission device for a premix burner
WO2002061336A1 (en) * 2001-02-01 2002-08-08 Sit La Precisa S.P.A. An improved air-gas mixer device
WO2003092875A2 (en) * 2002-04-30 2003-11-13 Sit La Precisa S.P.A. An air-gas mixer device, particularly for gas burners and similar apparatus
WO2003102407A1 (en) * 2002-05-31 2003-12-11 Catalytica Energy Systems, Inc. Fuel-air premixing system for a catalytic combustor
WO2004057236A2 (en) * 2002-12-23 2004-07-08 Bowman Power Systems Limited A combustion device
EP1482245A1 (en) * 2003-05-30 2004-12-01 Hovalwerk AG Device for controlling the fuel/air ratio in a premix combustion apparatus
DE10349344B3 (en) * 2003-10-23 2005-06-30 Ebm-Papst Landshut Gmbh Blower with laminar element in front of the suction opening
DE102007022008A1 (en) * 2007-05-08 2008-11-13 Saia-Burgess Dresden Gmbh Combined fan / gas valve unit

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2603411A (en) * 1948-02-28 1952-07-15 Trumpa Ewald Blower inlet control device
US2905375A (en) * 1958-01-14 1959-09-22 Hanus John Air mixing and flow control device
EP0656507A2 (en) * 1993-12-03 1995-06-07 VIESSMANN WERKE GmbH & CO. Gas premix burner
JPH08128609A (en) * 1994-10-31 1996-05-21 Miura Co Ltd Fan equipped with fuel gas mixing mechanism
EP0834695A1 (en) * 1996-10-03 1998-04-08 Gianmario Invernizzi A device for supplying a gas-air mixture to burners, particularly for heating apparatuses
EP0896191A2 (en) * 1997-08-05 1999-02-10 Karl Dungs GmbH & Co. Fuel gas admission device for a premix burner
WO2002061336A1 (en) * 2001-02-01 2002-08-08 Sit La Precisa S.P.A. An improved air-gas mixer device
WO2003092875A2 (en) * 2002-04-30 2003-11-13 Sit La Precisa S.P.A. An air-gas mixer device, particularly for gas burners and similar apparatus
WO2003102407A1 (en) * 2002-05-31 2003-12-11 Catalytica Energy Systems, Inc. Fuel-air premixing system for a catalytic combustor
WO2004057236A2 (en) * 2002-12-23 2004-07-08 Bowman Power Systems Limited A combustion device
EP1482245A1 (en) * 2003-05-30 2004-12-01 Hovalwerk AG Device for controlling the fuel/air ratio in a premix combustion apparatus
DE10349344B3 (en) * 2003-10-23 2005-06-30 Ebm-Papst Landshut Gmbh Blower with laminar element in front of the suction opening
DE102007022008A1 (en) * 2007-05-08 2008-11-13 Saia-Burgess Dresden Gmbh Combined fan / gas valve unit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105612386A (en) * 2013-07-05 2016-05-25 西特股份公司 An air-gas mixer device for premix burner equipment
CN105612386B (en) * 2013-07-05 2017-11-07 西特股份公司 Air fuel gas mixer apparatus for premix burner equipment
CN111042869B (en) * 2019-12-24 2022-06-21 哈尔滨工程大学 Small centripetal turbine adopting axial air inlet mode with straight guide vanes

Also Published As

Publication number Publication date
ITPD20090215A1 (en) 2011-01-23
EP2278224B1 (en) 2014-12-17
EP2278224A2 (en) 2011-01-26
IT1395189B1 (en) 2012-09-05

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