WO2010052746A8 - A gas burner apparatus with pre-mixing - Google Patents

A gas burner apparatus with pre-mixing Download PDF

Info

Publication number
WO2010052746A8
WO2010052746A8 PCT/IT2009/000487 IT2009000487W WO2010052746A8 WO 2010052746 A8 WO2010052746 A8 WO 2010052746A8 IT 2009000487 W IT2009000487 W IT 2009000487W WO 2010052746 A8 WO2010052746 A8 WO 2010052746A8
Authority
WO
WIPO (PCT)
Prior art keywords
ducts
burner
section
sealing element
duct
Prior art date
Application number
PCT/IT2009/000487
Other languages
French (fr)
Other versions
WO2010052746A2 (en
WO2010052746A3 (en
Inventor
Loris Barduca
Stefano Calore
Danilo Pulzato
Original Assignee
Sit La Precisa S.P.A. Con 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 Sit La Precisa S.P.A. Con Socio Unico filed Critical Sit La Precisa S.P.A. Con Socio Unico
Priority to UAA201107242A priority Critical patent/UA101997C2/en
Priority to CN2009801448313A priority patent/CN102209869B/en
Priority to US13/127,153 priority patent/US20110217664A1/en
Priority to EP20090760634 priority patent/EP2342496B8/en
Priority to CA2742758A priority patent/CA2742758C/en
Priority to RU2011122829/06A priority patent/RU2511820C2/en
Publication of WO2010052746A2 publication Critical patent/WO2010052746A2/en
Publication of WO2010052746A8 publication Critical patent/WO2010052746A8/en
Publication of WO2010052746A3 publication Critical patent/WO2010052746A3/en

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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
  • Pre-Mixing And Non-Premixing Gas Burner (AREA)

Abstract

A gas burner apparatus with pre-mixing comprises mixing means for mixing an air/gas mixture which is intended to be conveyed to the intake section of a fan unit (4), whose delivery is conveyed to a combustion head (2) of the burner, the mixing means comprising a plurality of ducts (12), each of which has a region in the form of a Venturi duct with contiguous portions (16a, 16b) which are convergent/divergent, with respect to the direction of flow, and with a restricted duct cross-section (16c) defined between the convergent portion and the divergent portion, there being conveyed in each convergent portion (16a) an air flow which is intended to be mixed with a gas flow which is introduced into the duct at the restricted cross-section (16c), the air/gas mixture being conveyed through the divergent portion (16b) of the duct to the intake section (10) of the fan unit (4). Each duct (12) of the plurality is defined by the engagement of at least a first and a second mutually separate burner region (A,B), along a mutual engagement profile, there being carried on each of the burner regions (A,B) corresponding, separate portions of each of the ducts (12), at least a first fluid-tight sealing element (20) being provided between the burner regions (A,B) along the engagement profile in order to prevent gas and/or air from being drawn in with respect to the ducts (12). The at least first sealing element (20) is interposed between the burner regions (A,B) at the restricted cross-section (16c) of each of the Venturi ducts of the plurality of ducts (12); the at least first sealing element (20) has through-holes (21) which define the restricted cross-section of the corresponding Venturi duct in at least some of the plurality of ducts (12), as a result of the engagement of the burner regions (A,B) along the engagement profile and is interchangeable with at least a second sealing element (20', 20") which has corresponding through-holes (21', 21"), whose overall size for the relevant cross-sections is different from the overall size for the cross-sections relating to the corresponding holes (21) of the first sealing element (20), so as to vary the overall cross-section defined by the plurality of holes of the ducts, with at least the first element (20) being interchanged with at least the second sealing element (20', 20"), and consequently to control the burner in accordance with the thermal power required and/or the flow resistances which exist in the ducts for supplying the air/gas mixture to the burner.
PCT/IT2009/000487 2008-11-07 2009-10-27 A gas burner apparatus with pre-mixing WO2010052746A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
UAA201107242A UA101997C2 (en) 2008-11-07 2009-10-27 Pre-mixing gas burner apparatus
CN2009801448313A CN102209869B (en) 2008-11-07 2009-10-27 A gas burner apparatus with pre-mixing
US13/127,153 US20110217664A1 (en) 2008-11-07 2009-10-27 gas burner apparatus with pre-mixing
EP20090760634 EP2342496B8 (en) 2008-11-07 2009-10-27 A gas burner apparatus with pre-mixing
CA2742758A CA2742758C (en) 2008-11-07 2009-10-27 A gas burner apparatus with pre-mixing
RU2011122829/06A RU2511820C2 (en) 2008-11-07 2009-10-27 Gas burner device with preliminary mixing

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITPD2008A000324 2008-11-07
ITPD2008A000324A IT1391676B1 (en) 2008-11-07 2008-11-07 GAS BURNER UNIT WITH PRE-MIXING

Publications (3)

Publication Number Publication Date
WO2010052746A2 WO2010052746A2 (en) 2010-05-14
WO2010052746A8 true WO2010052746A8 (en) 2010-07-08
WO2010052746A3 WO2010052746A3 (en) 2011-04-07

Family

ID=41128215

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2009/000487 WO2010052746A2 (en) 2008-11-07 2009-10-27 A gas burner apparatus with pre-mixing

Country Status (8)

Country Link
US (1) US20110217664A1 (en)
EP (1) EP2342496B8 (en)
CN (1) CN102209869B (en)
CA (1) CA2742758C (en)
IT (1) IT1391676B1 (en)
RU (1) RU2511820C2 (en)
UA (1) UA101997C2 (en)
WO (1) WO2010052746A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2013200950B2 (en) 2012-02-16 2014-05-29 David M. Christensen Control system for space heater/hearth
ITPD20130189A1 (en) * 2013-07-05 2015-01-06 Sit La Precisa S P A Con Socio Uni Co AIR-GAS MIXER DEVICE FOR PRE-MIXING BURNER EQUIPMENT
FR3018900B1 (en) * 2014-03-19 2016-04-15 Yahtec BURNER DEVICE WITH PRE GAS MIX
CN110748887B (en) * 2017-06-27 2021-11-09 珠海优特智厨科技有限公司 Gas equipment
CN113680224A (en) * 2020-05-19 2021-11-23 彼特威有限责任公司 Gas/air mixing device for gas burner
IT202100025352A1 (en) * 2021-10-04 2023-04-04 Raffaele Antonio Spezia APPLICATIONS OF A MICRO NOZZLE ELEMENT

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1637772A (en) * 1923-03-22 1927-08-02 Messer Griesheim Gmbh Air-blast gas burner
US3289695A (en) * 1964-11-16 1966-12-06 Waterous Co Centrifugal pump transfer valve
US4249758B1 (en) * 1978-08-25 1993-11-23 Robert Harris Company, Inc. Ductwork connecting
SU1337607A1 (en) * 1986-01-16 1987-09-15 Среднеазиатский Филиал Всесоюзного Научно-Исследовательского Института Использования Газа В Народном Хозяйстве И Подземного Хранения Нефти,Нефтепродуктов И Сжиженных Газов Block burner
GB8801785D0 (en) * 1988-01-27 1988-02-24 Burco Dean Appliances Ltd Gas burner assemblies
DE4219443A1 (en) * 1992-06-13 1993-12-16 Hans Dr Viesmann Radiation burner for central heating boiler - has wire mesh burner face with curved section in downstream direction aligned with support aperture
ATE189513T1 (en) * 1993-12-06 2000-02-15 Papst Motoren Gmbh & Co Kg BURNER FAN FOR GAS PREMIX BURNERS
JP3642588B2 (en) * 1994-08-04 2005-04-27 日本ガスケット株式会社 Metal gasket
US5669218A (en) * 1995-05-31 1997-09-23 Dresser-Rand Company Premix fuel nozzle
DE69604070T2 (en) * 1996-10-03 2000-02-17 Siabs Industry S R L Device for supplying a gas / air mixture to a burner, in particular for heating systems
IT1315743B1 (en) * 2000-10-03 2003-03-18 Sit La Precisa Spa IMPROVED AIR-GAS MIXER DEVICE.
CN2454642Y (en) * 2000-12-07 2001-10-17 金志刚 Air-injection gas all-premixing combustion apparatus
ITPD20010023A1 (en) * 2001-02-01 2002-08-01 Sit La Precisa Spa IMPROVED AIR-GAS MIXER DEVICE.
DE10349344B3 (en) * 2003-10-23 2005-06-30 Ebm-Papst Landshut Gmbh Blower with laminar element in front of the suction opening
JP2005246371A (en) * 2004-02-05 2005-09-15 Denso Corp Gas mixing apparatus
DE102007022008B4 (en) * 2007-05-08 2009-02-26 Saia-Burgess Dresden Gmbh Combined fan / gas valve unit
ITPD20070363A1 (en) * 2007-11-06 2009-05-07 Sit La Precisa Spa BURNER, IN PARTICULAR GAS BURNER WITH PRE-MIXING
ITPD20070414A1 (en) * 2007-12-19 2009-06-20 Ln 2 Srl Socio Unico CENTRIFUGAL FAN
ITPD20070416A1 (en) * 2007-12-19 2009-06-20 Ln 2 Srl Socio Unico FLUID DYNAMIC MACHINE, IN PARTICULAR FAN OF CENTRIFUGAL TYPE
ITPD20070413A1 (en) * 2007-12-19 2009-06-20 Ln 2 Srl Socio Unico FAN ASSEMBLY FOR GAS BURNERS WITH PRE-MIXING AND BURNER EQUIPMENT INCLUDING THE FAN.
ITPD20080006A1 (en) * 2008-01-08 2009-07-09 Ln 2 S R L ENTRY DEVICE FOR AIR / GAS FLOW IN A FAN UNIT, PARTICULARLY FOR GAS BURNERS WITH PRE-MIXING.
ITPD20080005A1 (en) * 2008-01-08 2009-07-09 Ln 2 S R L AIR-GAS MIXER DEVICE, PARTICULARLY FOR PRE-MIXING BURNER APPLIANCES.

Also Published As

Publication number Publication date
EP2342496B1 (en) 2015-02-25
CN102209869B (en) 2013-09-04
RU2511820C2 (en) 2014-04-10
WO2010052746A2 (en) 2010-05-14
EP2342496B8 (en) 2015-04-22
IT1391676B1 (en) 2012-01-17
CA2742758C (en) 2017-03-07
CN102209869A (en) 2011-10-05
ITPD20080324A1 (en) 2010-05-08
WO2010052746A3 (en) 2011-04-07
UA101997C2 (en) 2013-05-27
EP2342496A2 (en) 2011-07-13
CA2742758A1 (en) 2010-05-14
US20110217664A1 (en) 2011-09-08
RU2011122829A (en) 2012-12-20

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