WO2012006166A3 - Blower assembly with venturi -mixer for use with gas powered appliance - Google Patents

Blower assembly with venturi -mixer for use with gas powered appliance Download PDF

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Publication number
WO2012006166A3
WO2012006166A3 PCT/US2011/042395 US2011042395W WO2012006166A3 WO 2012006166 A3 WO2012006166 A3 WO 2012006166A3 US 2011042395 W US2011042395 W US 2011042395W WO 2012006166 A3 WO2012006166 A3 WO 2012006166A3
Authority
WO
WIPO (PCT)
Prior art keywords
blower assembly
impeller
combustion air
gas supply
venturi
Prior art date
Application number
PCT/US2011/042395
Other languages
French (fr)
Other versions
WO2012006166A2 (en
Inventor
Zhongsheng Niu
Darryl Ruark
Greg Reynolds
Original Assignee
A.O. Smith Corporation
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 A.O. Smith Corporation filed Critical A.O. Smith Corporation
Publication of WO2012006166A2 publication Critical patent/WO2012006166A2/en
Publication of WO2012006166A3 publication Critical patent/WO2012006166A3/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
    • 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
    • F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • 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
    • 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
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/02—Regulating fuel supply conjointly with air supply
    • F23N1/025—Regulating fuel supply conjointly with air supply using electrical or electromechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/18—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel
    • F23N5/187—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel using electrical or electromechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/18—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel
    • F23N2005/185—Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel using detectors sensitive to rate of flow of fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2225/00—Measuring
    • F23N2225/04—Measuring pressure
    • F23N2225/06—Measuring pressure for determining flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2233/00—Ventilators
    • F23N2233/06—Ventilators at the air intake
    • F23N2233/08—Ventilators at the air intake with variable speed

Landscapes

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

Abstract

A blower assembly (105) for supplying a combustible mixture to a burner of a gas -fired appliance, the blower assembly (105) including a housing (145) defining an interior space, an impeller, a motor (155) operatively interconnected with the impeller to drive the impeller, an elongated blower conduit, a single-piece venturi (165), a gas supply space, and a gas supply port (211). The single-piece venturi includes a converging portion (210) having a wide end (220) and a narrow end, a diverging portion (215) integrally formed with the converging portion (210) and having a wide end (240) and a narrow end, and multiple entrainment openings (250) in the diverging portion (215) proximate the narrow end of the diverging portion (215). The flow of combustion air over the entrainment openings (250) draws gaseous fuel through the entrainment openings (250) from the gas supply space. Gaseous fuel is entrained in the flow of combustion air and mixed with the combustion air in the diverging portion (215) to create the combustible mixture.
PCT/US2011/042395 2010-06-29 2011-06-29 Blower assembly for use with gas powered appliance WO2012006166A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US35962810P 2010-06-29 2010-06-29
US61/359,628 2010-06-29

Publications (2)

Publication Number Publication Date
WO2012006166A2 WO2012006166A2 (en) 2012-01-12
WO2012006166A3 true WO2012006166A3 (en) 2012-12-06

Family

ID=44628140

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2011/042395 WO2012006166A2 (en) 2010-06-29 2011-06-29 Blower assembly for use with gas powered appliance

Country Status (1)

Country Link
WO (1) WO2012006166A2 (en)

Cited By (1)

* 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

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2927584A1 (en) * 2014-04-02 2015-10-07 Honeywell Technologies Sarl Monolithic fuel gas/air mixing device for a gas burner
CN105258165B (en) * 2015-10-21 2017-09-22 耒阳市兴农牧业有限公司 A kind of blast coal stove air-blast device
DE102019112645A1 (en) * 2019-05-14 2020-11-19 Ebm-Papst Landshut Gmbh Inflow device for a gas blower
US11441785B2 (en) * 2019-05-31 2022-09-13 Lg Electronics Inc. Gas furnace
US12110707B2 (en) * 2020-10-29 2024-10-08 Hayward Industries, Inc. Swimming pool/spa gas heater inlet mixer system and associated methods

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP0896192A2 (en) * 1997-08-05 1999-02-10 Karl Dungs GmbH & Co. Fuel gas admission device for a premix burner
WO1999047273A2 (en) * 1998-03-18 1999-09-23 Lytesyde L.L.C. Medication processing system and method
CN2434553Y (en) * 2000-07-11 2001-06-13 上海天行机电设备成套公司 Novel gas/air premixing appts.
WO2002029319A1 (en) * 2000-10-03 2002-04-11 Sit La Precisa S.P.A. An improved air-gas mixer device
EP1953453A1 (en) * 2007-01-26 2008-08-06 Viessmann Werke GmbH & Co. KG Mixing device for a gas burner with blower

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP0896192A2 (en) * 1997-08-05 1999-02-10 Karl Dungs GmbH & Co. Fuel gas admission device for a premix burner
WO1999047273A2 (en) * 1998-03-18 1999-09-23 Lytesyde L.L.C. Medication processing system and method
CN2434553Y (en) * 2000-07-11 2001-06-13 上海天行机电设备成套公司 Novel gas/air premixing appts.
WO2002029319A1 (en) * 2000-10-03 2002-04-11 Sit La Precisa S.P.A. An improved air-gas mixer device
EP1953453A1 (en) * 2007-01-26 2008-08-06 Viessmann Werke GmbH & Co. KG Mixing device for a gas burner with blower

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
CN105612386B (en) * 2013-07-05 2017-11-07 西特股份公司 Air fuel gas mixer apparatus for premix burner equipment

Also Published As

Publication number Publication date
WO2012006166A2 (en) 2012-01-12

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