EP0884529A2 - Brûleur à gaz pour chaudières - Google Patents

Brûleur à gaz pour chaudières Download PDF

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Publication number
EP0884529A2
EP0884529A2 EP98109690A EP98109690A EP0884529A2 EP 0884529 A2 EP0884529 A2 EP 0884529A2 EP 98109690 A EP98109690 A EP 98109690A EP 98109690 A EP98109690 A EP 98109690A EP 0884529 A2 EP0884529 A2 EP 0884529A2
Authority
EP
European Patent Office
Prior art keywords
gas
burner
burner tube
nozzle
openings
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.)
Withdrawn
Application number
EP98109690A
Other languages
German (de)
English (en)
Other versions
EP0884529A3 (fr
Inventor
Hubert Nolte
Martin Herrs
Roland Merker
Rolf Dr. Naumann
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.)
Stiebel Eltron GmbH and Co KG
Original Assignee
Stiebel Eltron GmbH and Co KG
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 Stiebel Eltron GmbH and Co KG filed Critical Stiebel Eltron GmbH and Co KG
Publication of EP0884529A2 publication Critical patent/EP0884529A2/fr
Publication of EP0884529A3 publication Critical patent/EP0884529A3/fr
Withdrawn legal-status Critical Current

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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
    • F23D14/60—Devices for simultaneous control of gas and combustion air
    • 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
    • F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
    • F23D14/10—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with elongated tubular burner head
    • F23D14/105—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with elongated tubular burner head with injector axis parallel to the burner head axis
    • 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
    • F23D14/62—Mixing devices; Mixing tubes
    • F23D14/64—Mixing devices; Mixing tubes with injectors

Definitions

  • the invention relates to a gas burner for a boiler according to the Preamble of claims 1 and 3.
  • Such a gas burner is known from DE 92 05 202 U1.
  • This atmospheric burner projects the gas nozzle into the mouth of the Burner tube so that air flows into the burner tube (Primary air) is sucked in by reduced injector action. It there is a dependency on the intake air volume flow from the gas flow. This dependency is not common to everyone Gas burners wanted.
  • the injector is one Gas nozzle associated with a main nozzle bore as well as at least has a secondary nozzle bore which is at an angle to the axis of the Injector is aligned.
  • the main nozzle bore is between an open and a closed position movable Closure element assigned, so that an operation with low Gas quantity with unchanged gas pressure above the inclined Secondary nozzle bore with reduced primary air content is possible.
  • DE 44 33 425 A1 describes a control device for a gas burner described.
  • a control circuit controls the speed of one air-promoting blower depending on the combustion. Of the Structure of the burner is not shown in detail.
  • the object of the invention is a gas burner of the generic type To create at the gas nozzle at gas pressure changes as a result changed gas quality of the primary air portion largely remains unaffected.
  • the Burner tube 1 with the longitudinal axis A has a conical downstream tapering mouth 5 and 6 flame openings 7 in a combustion chamber on.
  • a heat exchanger 8 is arranged in the combustion chamber 6.
  • Of the Combustion chamber 6 is connected to an exhaust pipe 9. Over the estuary 5 primary air Vp flows into the burner tube 1. Secondary air Vs can due to the thermal buoyancy in the combustion chamber 6 in these occur (see Fig. 5).
  • a burner is included fan-assisted combustion is provided.
  • One in the flame area arranged ionization electrode 14 detects that of the air ratio (lambda) corresponding to the respective gas-air mixture Combustion temperature.
  • the control circuit derives from the air ratio and a control deviation from an air ratio setpoint and controls with a a gas valve located in the gas line 2 15 modulating. A rule deviation arises when the Fan speed or a change in gas quality.
  • the Control circuit 13 is intended to achieve the target air ratio required amount of fuel gas depending on the heat demand Adjust the controlled air volume.
  • the gas nozzle 4 (see. Fig. 2 to 4) is therefore arranged so that it protrudes coaxially to the longitudinal axis A into the burner tube 1, up to just above the end 5 'of the conical taper of the mouth 5 out.
  • the gas nozzle 4 has on its circumference, ie radially to Longitudinal axis A, distributes several gas openings 16. These are in the Burner tube 1 further inside (to the right in Fig. 2) than the inner end 5 'of the mouth 5.
  • the gas nozzle 4 points axially to the longitudinal axis A. No gas opening towards.
  • On an external thread 17 is the Gas nozzle 4 into the gas distributor 3 by means of a hexagon attachment 18 screwable.
  • the arrangement of the gas nozzle 4 and the position of the gas openings 16 is largely avoided that through the gas openings 16 in the Burner tube 1 entering gas an air-sucking injector effect unfolded. This ensures that the burner tube 1 Air volume supplied predominantly only from the speed of the Blower 12 and not from that prevailing in the gas nozzle 4 Gas pressure or the respective gas volume flow depends.
  • the gas burner works with a controller 19 to which the Combustion-sensing ionization electrode 14 is connected.
  • the Controller 19 controls the gas valve 15, for example the solenoid valve, and the gas pressure PA prevailing at the gas nozzle 4 accordingly the combustion.
  • the gas valve 15 for example the solenoid valve
  • PA gas pressure
  • the gas nozzle 4 (see FIG. 6) has a jacket body 20 and an inner one in the jacket body 20 movable nozzle part 21.
  • the nozzle part 21 is mounted in the jacket body 20 in the longitudinal direction A and by means of a compression spring 22 against the gas flow direction a, in Direction b, loaded.
  • the nozzle part 21 has inside of the jacket body 20 on a conical extension 24, which is too a tubular gas channel 25 forming the gas opening 23 is narrowed.
  • the casing body 20 forms a stop for a constriction 26 a movement of the nozzle part 21 in direction a, against the direction b.
  • the gas openings 16 radial to the longitudinal axis A are on the jacket body 20 trained. They are within the conical mouth 5 of the Burner tube 1.
  • the extension 24 of the nozzle part 21 forms an edge 27, which closes the gas openings 16 when the nozzle part 21 of the Compression spring 22 is displaced in direction b against a stop 28.
  • the mode of operation of the gas nozzle according to FIG. 6 is approximately as follows:
  • the compression spring 22 presses the nozzle part 21 against the stop 28 so that the radial gas openings 16 are closed and gas only through the axial gas opening 23 in the Burner tube 1 can occur.
  • This gas flow leads to one Injection effect, by means of the primary air Vp into the burner tube 1 is sucked in. With an increasing gas pressure PA this becomes Nozzle part 21 shifted in direction a, the radial Gas openings 16 become free and now through this gas in the Burner tube 1 flows. This gas fraction essentially produces no injector effect, so that the primary air volume sucked in practically not increased.

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)
EP98109690A 1997-06-12 1998-05-28 Brûleur à gaz pour chaudières Withdrawn EP0884529A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19724861A DE19724861C1 (de) 1997-06-12 1997-06-12 Gasbrenner für einen Heizkessel
DE19724861 1997-06-12

Publications (2)

Publication Number Publication Date
EP0884529A2 true EP0884529A2 (fr) 1998-12-16
EP0884529A3 EP0884529A3 (fr) 1999-09-15

Family

ID=7832276

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98109690A Withdrawn EP0884529A3 (fr) 1997-06-12 1998-05-28 Brûleur à gaz pour chaudières

Country Status (3)

Country Link
US (1) US6027336A (fr)
EP (1) EP0884529A3 (fr)
DE (1) DE19724861C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1314932A1 (fr) * 2001-11-26 2003-05-28 Worgas Bruciatori S.R.L. Appareil de chauffage

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6916174B2 (en) * 1999-02-09 2005-07-12 Beckett Gas, Inc. Gas burner
IT1307513B1 (it) * 1999-11-15 2001-11-06 Ind Polidoro A S P A Bruciatore di gas combustibile con emissioni a basso tenore di nox
DE10017990C2 (de) * 2000-04-11 2002-03-07 Viessmann Werke Kg Gasgebläsebrenner
NZ505833A (en) * 2000-07-19 2002-12-20 Fisher & Paykel Appliances Ltd A spiral involute gas burner housing with reconfigurable jet mounted below burner assembly
US6244223B1 (en) 2000-09-25 2001-06-12 Rheem Manufacturing Company Power burner type fuel-fired water heater with quick change manifold assembly
US6889686B2 (en) * 2001-12-05 2005-05-10 Thomas & Betts International, Inc. One shot heat exchanger burner
US8402962B2 (en) * 2003-12-29 2013-03-26 Lg Electronics Inc. Apparatus for supply mixed gas for gas burners of radiant heating type
US7494337B2 (en) * 2004-04-22 2009-02-24 Thomas & Betts International, Inc. Apparatus and method for providing multiple stages of fuel
US7726386B2 (en) * 2005-01-14 2010-06-01 Thomas & Betts International, Inc. Burner port shield
WO2007022772A1 (fr) * 2005-08-22 2007-03-01 Danfoss A/S Ensemble de brûleurs comprenant une pluralité d’unités de gicleurs
ITPN20070009A1 (it) * 2007-02-08 2008-08-09 Electrolux Professional Spa "forno di cottura con bruciatore pre-miscelato per caldaie"
DE102008032265B4 (de) * 2008-07-09 2010-06-10 Deutsches Zentrum für Luft- und Raumfahrt e.V. Verbrennungsvorrichtung
US8591222B2 (en) * 2009-10-30 2013-11-26 Trane International, Inc. Gas-fired furnace with cavity burners
US9970679B2 (en) * 2012-12-18 2018-05-15 Lennox Industries Inc. Burner assembly for a heating furnace
US20170074509A1 (en) * 2015-09-11 2017-03-16 Green Air Burner Systems, LLC Hydrocarbon Burner

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9205202U1 (de) 1991-04-16 1992-06-11 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Brenner
DE4341997A1 (de) 1993-12-09 1995-06-14 Gogas Goch Gmbh & Co Gasbrenner
DE4433425A1 (de) 1994-09-20 1996-03-21 Stiebel Eltron Gmbh & Co Kg Regeleinrichtung zum Einstellen eines Gas-Verbrennungsluft-Gemisches bei einem Gasbrenner

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1466356A (en) * 1921-06-14 1923-08-28 Surface Comb Co Inc Method of and apparatus for mixing and proportioning gases
US1853863A (en) * 1927-04-09 1932-04-12 American Gas Furnace Co Gas control valve operated by air pressure
FR2481415A1 (fr) * 1980-04-23 1981-10-30 Fulpin Jacques Bruleur a gaz
GB2107041B (en) * 1981-09-29 1985-01-16 Coal Ind Device for extracting and burning methane
DE3902025A1 (de) * 1988-01-26 1989-07-27 Vaillant Joh Gmbh & Co Verfahren und einrichtungen zur herstellung eines einer verbrennung zuzufuehrenden, aus brenngas und verbrennungsluft bestehenden gemisches
NL9100767A (nl) * 1991-05-03 1992-12-01 Remeha Fabrieken Bv Gasgestookt toestel.
DE4115814A1 (de) * 1991-05-15 1992-12-03 Ruhrgas Ag Gas-geblaesebrenner
DE9108300U1 (de) * 1991-07-05 1991-10-02 Polidoro, Aldo, Schio, Vicenza Aus einem "Rampen"-Brenner, einem Wärmeaustauscher und einer Verbrennungskammer bestehende Anordnung
US5240411A (en) * 1992-02-10 1993-08-31 Mor-Flo Industries, Inc. Atmospheric gas burner assembly
US5839891A (en) * 1997-01-13 1998-11-24 Beckett Gas, Inc. Power gas burner
US5762490A (en) * 1997-06-19 1998-06-09 Burner Systems International, Inc. Premixed gas burner orifice

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9205202U1 (de) 1991-04-16 1992-06-11 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Brenner
DE4341997A1 (de) 1993-12-09 1995-06-14 Gogas Goch Gmbh & Co Gasbrenner
DE4433425A1 (de) 1994-09-20 1996-03-21 Stiebel Eltron Gmbh & Co Kg Regeleinrichtung zum Einstellen eines Gas-Verbrennungsluft-Gemisches bei einem Gasbrenner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1314932A1 (fr) * 2001-11-26 2003-05-28 Worgas Bruciatori S.R.L. Appareil de chauffage

Also Published As

Publication number Publication date
US6027336A (en) 2000-02-22
DE19724861C1 (de) 1998-10-15
EP0884529A3 (fr) 1999-09-15

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