WO2009087050A3 - Air/gas mixing device, particularly for pre-mixing burner apparatuses - Google Patents

Air/gas mixing device, particularly for pre-mixing burner apparatuses Download PDF

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Publication number
WO2009087050A3
WO2009087050A3 PCT/EP2008/068041 EP2008068041W WO2009087050A3 WO 2009087050 A3 WO2009087050 A3 WO 2009087050A3 EP 2008068041 W EP2008068041 W EP 2008068041W WO 2009087050 A3 WO2009087050 A3 WO 2009087050A3
Authority
WO
WIPO (PCT)
Prior art keywords
gas
air
mixing
duct
conveying means
Prior art date
Application number
PCT/EP2008/068041
Other languages
French (fr)
Other versions
WO2009087050A2 (en
Inventor
Antonio Ranalli
Rosalino Usci
Michele Marcantoni
Original Assignee
Ln 2 S.R.L. 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 S.R.L. A Socio Unico filed Critical Ln 2 S.R.L. A Socio Unico
Priority to EP08869932.7A priority Critical patent/EP2242953B1/en
Publication of WO2009087050A2 publication Critical patent/WO2009087050A2/en
Publication of WO2009087050A3 publication Critical patent/WO2009087050A3/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
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/62—Mixing devices; Mixing tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/02—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/02—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal
    • F04D17/025—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal comprising axial flow and radial flow stages
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/14—Special features of gas burners
    • F23D2900/14021—Premixing burners with swirling or vortices creating means for fuel or air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/14—Special features of gas burners
    • F23D2900/14701—Swirling means inside the mixing tube or chamber to improve premixing

Landscapes

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

Abstract

An air/gas mixing device, particularly for pre-mixing burner apparatuses, comprises first conveying means (6) with centripetal flow including a plurality of ducts (7) having a predominant radial direction and disposed along a circumferential profile concentric with a main axis (X) and divergent in the direction of the axis, the flow of air, intended for mixing with the gas, being admitted into the ducts (7), and second gas conveying means (11), for conveying the gas admitted into the device into each duct of the first conveying means, such that in each duct (7) air/gas pre-mixing takes place downstream of the zone for admission of the gas into the duct (7), in the direction of the axis (X).
PCT/EP2008/068041 2008-01-08 2008-12-19 Air/gas mixing device, particularly for pre-mixing burner apparatuses WO2009087050A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08869932.7A EP2242953B1 (en) 2008-01-08 2008-12-19 Air/gas mixing device, particularly for pre-mixing burner apparatuses

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITPD20080005 ITPD20080005A1 (en) 2008-01-08 2008-01-08 AIR-GAS MIXER DEVICE, PARTICULARLY FOR PRE-MIXING BURNER APPLIANCES.
ITPD2008A000005 2008-01-08

Publications (2)

Publication Number Publication Date
WO2009087050A2 WO2009087050A2 (en) 2009-07-16
WO2009087050A3 true WO2009087050A3 (en) 2010-05-20

Family

ID=40290215

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/068041 WO2009087050A2 (en) 2008-01-08 2008-12-19 Air/gas mixing device, particularly for pre-mixing burner apparatuses

Country Status (3)

Country Link
EP (1) EP2242953B1 (en)
IT (1) ITPD20080005A1 (en)
WO (1) WO2009087050A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1391676B1 (en) * 2008-11-07 2012-01-17 Sit La Precisa Spa Con Socio Unico GAS BURNER UNIT WITH PRE-MIXING
IT202100025352A1 (en) * 2021-10-04 2023-04-04 Raffaele Antonio Spezia APPLICATIONS OF A MICRO NOZZLE ELEMENT

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2905375A (en) * 1958-01-14 1959-09-22 Hanus John Air mixing and flow control device
EP0896191A2 (en) * 1997-08-05 1999-02-10 Karl Dungs GmbH & Co. Fuel gas admission device for a premix burner
WO1999019674A1 (en) * 1997-10-13 1999-04-22 Siemens Westinghouse Power Corporation Combustor with independently controllable fuel flow to different stages
EP1096201A1 (en) * 1999-10-29 2001-05-02 Siemens Aktiengesellschaft Burner
WO2003102407A1 (en) * 2002-05-31 2003-12-11 Catalytica Energy Systems, Inc. Fuel-air premixing system for a catalytic combustor
EP1400752A1 (en) * 2002-09-20 2004-03-24 Siemens Aktiengesellschaft Premixed burner with profiled air mass stream, gas turbine and process for burning fuel in air
WO2004057236A2 (en) * 2002-12-23 2004-07-08 Bowman Power Systems Limited A combustion device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2905375A (en) * 1958-01-14 1959-09-22 Hanus John Air mixing and flow control device
EP0896191A2 (en) * 1997-08-05 1999-02-10 Karl Dungs GmbH & Co. Fuel gas admission device for a premix burner
WO1999019674A1 (en) * 1997-10-13 1999-04-22 Siemens Westinghouse Power Corporation Combustor with independently controllable fuel flow to different stages
EP1096201A1 (en) * 1999-10-29 2001-05-02 Siemens Aktiengesellschaft Burner
WO2003102407A1 (en) * 2002-05-31 2003-12-11 Catalytica Energy Systems, Inc. Fuel-air premixing system for a catalytic combustor
EP1400752A1 (en) * 2002-09-20 2004-03-24 Siemens Aktiengesellschaft Premixed burner with profiled air mass stream, gas turbine and process for burning fuel in air
WO2004057236A2 (en) * 2002-12-23 2004-07-08 Bowman Power Systems Limited A combustion device

Also Published As

Publication number Publication date
EP2242953A2 (en) 2010-10-27
WO2009087050A2 (en) 2009-07-16
EP2242953B1 (en) 2017-10-18
ITPD20080005A1 (en) 2009-07-09

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