EP0769656A1 - Verbesserungen an Brennern für Wassererhitzer, Baderhitzer oder Gasheizkessel - Google Patents

Verbesserungen an Brennern für Wassererhitzer, Baderhitzer oder Gasheizkessel Download PDF

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Publication number
EP0769656A1
EP0769656A1 EP96402197A EP96402197A EP0769656A1 EP 0769656 A1 EP0769656 A1 EP 0769656A1 EP 96402197 A EP96402197 A EP 96402197A EP 96402197 A EP96402197 A EP 96402197A EP 0769656 A1 EP0769656 A1 EP 0769656A1
Authority
EP
European Patent Office
Prior art keywords
flame outlet
flame
burner
burner according
atmospheric burner
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
EP96402197A
Other languages
English (en)
French (fr)
Other versions
EP0769656B1 (de
Inventor
Eric Weiland
Gilles Leclerc
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.)
ELM Leblanc SAS
Original Assignee
ELM Leblanc SAS
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Filing date
Publication date
Application filed by ELM Leblanc SAS filed Critical ELM Leblanc SAS
Publication of EP0769656A1 publication Critical patent/EP0769656A1/de
Application granted granted Critical
Publication of EP0769656B1 publication Critical patent/EP0769656B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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, e.g. noise reduction means
    • F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
    • F23D14/78—Cooling burner parts
    • 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
    • F23D14/045—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 a plurality of burner bars assembled together, e.g. in a grid-like arrangement
    • 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
    • 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

Definitions

  • the present invention relates to a device intended to equip boilers with gas supply. It relates more particularly to the burners equipping water heaters, bath heaters and gas boilers and which carry out within a chamber, natural or assisted combustion of a premix consisting of an oxidizer, in particular of air, and a fuel, in particular of the gas type.
  • the burner, object of the invention seeks to achieve both a double objective, on the one hand a reduction of the pollutant emissions from the flames, and on the other hand a stabilization of the flames, while respecting the optimal physical conditions and combustion mechanics.
  • the shape and the reduced size of the nozzle require for the same overall power delivered to increase the number of nozzles and therefore the number of primary air injection points. They also make it possible to develop burners of variable power from an assembly by juxtaposition of different batteries of burner burners placed in parallel or staggered.
  • the burner burners thus designed also have orifices connected to each other by a network of conduits which make possible the circulation of a heat transfer fluid for cooling the assembly.
  • Known burner devices generally comprise a battery of ramps obtained by stamping a metal sheet and at the top of which the combustion of fuel, in particular gas, is carried out within an oxidizer, particularly air.
  • the burner arrangements are not optimal for the conduct of combustion, mainly in terms of the stability of the flame and its homogeneity. In addition, they most often require working with a low primary air rate much lower than the rate corresponding to stoichiometry.
  • the present invention therefore aims to remedy these drawbacks by proposing a burner device such that the secondary air arrives in a way which minimizes the time necessary for the complete combustion of the gaseous mixture present at the outlet of the burner, this mixture being composed in adequate proportion of a fuel to ignite and of the primary combustion air associated with it, thus making it possible to stabilize and catch the flames at the outlet of the burner.
  • the atmospheric burner object of the invention, is characterized in that it consists of at least one venturi tube, feeding in air-gas pre-mixture at least one chamber which is covered by an outlet of flame with a rounded profile, said chamber also having a nipping area between the flame outlet and the venturi tube.
  • the front part of this mixing chamber is intended to receive in particular, by interlocking, by slide, preferably relatively sealed, a cover 11 made of a material compatible with the proximity of the flame, for example stainless steel, and provided with orifices 12.
  • This cover 11 constitutes the flame outlet and has an upper surface whose profile is rounded.
  • a cylindrical flame outlet is preferably used because it allows a stable, "off-hook” flame to be obtained, thus generating little pressure drop over the flow of the air-gas mixture and a low temperature. reducing NOx levels, by the low heat exchange between an "off the hook" flame and the upper surface of the nozzle.
  • the orifices 12 arranged uniformly on the cylindrical flame outlet 11 consist of slots 13 transverse to the longitudinal axis of the flame outlet.
  • the cylindrical flame outlet has at its top a strip of material 14 in order to separate the slots in two according to a quadrant.
  • the geometrical configuration, the distribution, the dimensions of the slots 13 are adjusted as a function of the flame stability requirements and the desired surface power.
  • the side of the flame outlet has, at its zones of contact with the venturi tube, side walls 15 allowing interlocking according to the interior or the exterior of the wall of the venturi tube, these walls 15 according to a second embodiment can be folded to conform to slides.
  • the ends 16 of the side walls 15 of the flame outlet 11, in an interlocking mounting mode have a cutout 16, so as to produce flexible lugs 17; these allow both to improve the mechanical strength of the assembly, and the exchange of calories with the surrounding environment.
  • the quality of the thermal contact between the flame outlet and the spout body will be compatible with the thermal flow to be evacuated.
  • the flame outlet may be made of tinned stainless steel so that, during operation, the film d tin ensures a continuous and homogeneous brazing between the flame outlet and the spout burner.
  • tin is given only by way of example, and this quality of thermal bond which appears autonomously when the burner is operating, that is to say by simplifying the process as much as possible.
  • venturi tube 1 provided with a cylindrical flame outlet 11, as described above, ensures a primary air aeration rate, preferably slightly higher than that corresponding to a stoichiometric mixture.
  • the burner, object of the invention is obtained by the juxtaposition of a plurality of modules composed of at least one venturi tube, the assembly being carried out by means of joint planes 18, formed during the joining of the two half-shells 2, 3.
  • each single module provided with a venturi tube retains its own mixing chamber 9 and its own flame outlet 11, and according to a second variant (not shown), in an application consisting of a double module, the two venturi tubes 1 share each of their mixing chamber 9 in the upper part and in the area close to the central axis of symmetry, the flame exits 11 are also joined so as to form a single cover and also have a profile round.
  • the half-shells have a plurality of orifices 19 which come during the stamping operation, these orifices cooperate with each other during the juxtaposition of two half-shells 2-3 in module.
  • the invention allows the development of burners obtained by the association of a plurality of modules, these being arranged in a succession of parallel rows of aligned and / or staggered tubes.
  • conduits 20 in the different orifices 19 facing each other. Depending on the operating conditions, a circulation of heat transfer fluid is restored within these conduits.
  • the invention described above offers multiple advantages, such as in particular obtaining a primary combustion flame in the vicinity of the stoichiometry whose contact area with the outlet surface is small and therefore not very conducive to heating. , and a secondary flame of over-stoichiometric combustion in which the oxidation of the products resulting from the primary combustion is carried out.
  • the assembly of a plurality of burners according to the invention allows the user flexibility of operation, since he can, for the same useful volume, choose and assemble the number of burners, as a function of the heating power required.
  • the present invention is not limited to the exemplary embodiments described and shown above, but that it encompasses all variants thereof.
  • the second tubular part 7 of the burner according to the embodiment described above can be integrated into the mixing chamber 9, thus constituting a conical zone with elliptical section and variable surface.
  • said conical zone with elliptical section and variable surface has a length representing 70% of the total length of the burner, measured along the line of flow of the air-gas mixture.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
  • Details Of Fluid Heaters (AREA)
  • Control For Baths (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Percussion Or Vibration Massage (AREA)
EP96402197A 1995-10-19 1996-10-15 Verbesserungen an Brennern für Wassererhitzer, Baderhitzer oder Gasheizkessel Expired - Lifetime EP0769656B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9512302A FR2740202B1 (fr) 1995-10-19 1995-10-19 Perfectionnements apportes a un bruleur de chauffe-eau, chauffe-bain, chaudiere a gaz
FR9512302 1995-10-19

Publications (2)

Publication Number Publication Date
EP0769656A1 true EP0769656A1 (de) 1997-04-23
EP0769656B1 EP0769656B1 (de) 1999-09-22

Family

ID=9483703

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96402197A Expired - Lifetime EP0769656B1 (de) 1995-10-19 1996-10-15 Verbesserungen an Brennern für Wassererhitzer, Baderhitzer oder Gasheizkessel

Country Status (7)

Country Link
EP (1) EP0769656B1 (de)
AT (1) ATE184977T1 (de)
DE (1) DE69604357T2 (de)
DK (1) DK0769656T3 (de)
ES (1) ES2136378T3 (de)
FR (1) FR2740202B1 (de)
GR (1) GR3032185T3 (de)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0913635A2 (de) * 1997-10-28 1999-05-06 Robert Bosch Gmbh Gasbrenner
EP1130315A2 (de) 2000-03-04 2001-09-05 Robert Bosch Gmbh Atmosphärischer Gasbrenner
EP1201991A1 (de) * 2000-10-31 2002-05-02 Robert Bosch Gmbh Brennerplatte für einen Gasbrenner
EP1201992A3 (de) * 2000-10-31 2002-09-25 Robert Bosch Gmbh Brennerplatte für einen Gasbrenner
DE10053877B4 (de) * 2000-10-31 2004-10-07 Robert Bosch Gmbh Brennerplatte für einen Gasbrenner
EP1566592A1 (de) * 2004-02-20 2005-08-24 Chaffoteaux & Maury Verbesserungen an atmosphärischen Gasbrennern
CN104896511A (zh) * 2015-05-29 2015-09-09 北京航空航天大学 一种用于低排放燃烧室的燃油预混装置
CN107781808A (zh) * 2017-11-24 2018-03-09 珠海格力电器股份有限公司 燃烧装置及壁挂炉
EP3324114A1 (de) * 2016-11-21 2018-05-23 Pro-Iroda Industries, Inc. Heizpistole mit verbesserten flussauswirkungen
CN108534139A (zh) * 2018-05-15 2018-09-14 芜湖美的厨卫电器制造有限公司 燃烧器及热水器
CN110578920A (zh) * 2018-06-08 2019-12-17 美的集团股份有限公司 燃烧器和燃气热水器
EP3597999A1 (de) * 2018-07-20 2020-01-22 Guangdong Vanward New Electric Co., Ltd. Gas-wassererhitzer und brenner dafür
EP3584499A4 (de) * 2018-01-16 2020-02-19 Wuhu Midea Kitchen And Bath Appliances Mfg. Co, Ltd. Flammenverteiler sowie brenner und wassererhitzer mit verwendung davon

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20109170U1 (de) * 2001-06-05 2002-10-10 Viessmann Werke Kg Atmosphärischer Gasbrenner
TWI621813B (zh) * 2016-09-26 2018-04-21 Grand Mate Co Ltd burner
EP3795922A4 (de) * 2018-05-15 2022-04-27 Wuhu Midea Kitchen And Bath Appliances Mfg. Co, Ltd. Verteiler und brennkammer und warmwassererhitzer damit

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2102802A6 (de) * 1968-05-02 1972-04-07 Zaegel Held Sa
DE4025060A1 (de) * 1989-08-10 1991-02-14 Vaillant Joh Gmbh & Co Verfahren zum herstellen eines brenners und vorrichtung zur durchfuehrung des verfahrens sowie nach dem verfahren hergesteller brenner
GB2262336A (en) * 1991-12-06 1993-06-16 Aldo Polidoro A gas burner
EP0589852A1 (de) * 1992-09-24 1994-03-30 FERROLI S.p.A. Atmospherischer Gasbrenner zur Verbrennung mit niedrigem Stickoxiden- und Kohlenoxiden-Gehalt
WO1994016269A1 (fr) * 1993-01-15 1994-07-21 Joseph Le Mer Procede de fabrication d'un element de bruleur a gaz, element de bruleur et bruleur en faisant utilisation
EP0657691A1 (de) * 1993-11-10 1995-06-14 Worgas Bruciatori S.R.L. Misch- und Diffusionselement für einen atmosphärischen Brenner
EP0661496A2 (de) * 1994-01-04 1995-07-05 Bray Technologies Plc Gasbrenner und dazugehörige Flammbänder
EP0713053A1 (de) * 1994-11-16 1996-05-22 Aldo Polidoro Hyperstöchiometrischer atmosphärischer Gasbrenner

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2102802A6 (de) * 1968-05-02 1972-04-07 Zaegel Held Sa
DE4025060A1 (de) * 1989-08-10 1991-02-14 Vaillant Joh Gmbh & Co Verfahren zum herstellen eines brenners und vorrichtung zur durchfuehrung des verfahrens sowie nach dem verfahren hergesteller brenner
GB2262336A (en) * 1991-12-06 1993-06-16 Aldo Polidoro A gas burner
EP0589852A1 (de) * 1992-09-24 1994-03-30 FERROLI S.p.A. Atmospherischer Gasbrenner zur Verbrennung mit niedrigem Stickoxiden- und Kohlenoxiden-Gehalt
WO1994016269A1 (fr) * 1993-01-15 1994-07-21 Joseph Le Mer Procede de fabrication d'un element de bruleur a gaz, element de bruleur et bruleur en faisant utilisation
EP0657691A1 (de) * 1993-11-10 1995-06-14 Worgas Bruciatori S.R.L. Misch- und Diffusionselement für einen atmosphärischen Brenner
EP0661496A2 (de) * 1994-01-04 1995-07-05 Bray Technologies Plc Gasbrenner und dazugehörige Flammbänder
EP0713053A1 (de) * 1994-11-16 1996-05-22 Aldo Polidoro Hyperstöchiometrischer atmosphärischer Gasbrenner

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0913635A2 (de) * 1997-10-28 1999-05-06 Robert Bosch Gmbh Gasbrenner
EP0913635A3 (de) * 1997-10-28 1999-11-24 Robert Bosch Gmbh Gasbrenner
EP1130315A2 (de) 2000-03-04 2001-09-05 Robert Bosch Gmbh Atmosphärischer Gasbrenner
EP1130315A3 (de) * 2000-03-04 2001-09-19 Robert Bosch Gmbh Atmosphärischer Gasbrenner
DE10010762A1 (de) * 2000-03-04 2001-09-20 Bosch Gmbh Robert Atmosphärischer Gasbrenner
DE10010762C2 (de) * 2000-03-04 2002-03-28 Bosch Gmbh Robert Atmosphärischer Gasbrenner
DE10053877B4 (de) * 2000-10-31 2004-10-07 Robert Bosch Gmbh Brennerplatte für einen Gasbrenner
DE10053875C1 (de) * 2000-10-31 2002-06-06 Bosch Gmbh Robert Brennerplatte für einen Gasbrenner
EP1201992A3 (de) * 2000-10-31 2002-09-25 Robert Bosch Gmbh Brennerplatte für einen Gasbrenner
DE10053876C2 (de) * 2000-10-31 2002-10-17 Bosch Gmbh Robert Brennerplatte für einen Gasbrenner
EP1201991A1 (de) * 2000-10-31 2002-05-02 Robert Bosch Gmbh Brennerplatte für einen Gasbrenner
EP1566592A1 (de) * 2004-02-20 2005-08-24 Chaffoteaux & Maury Verbesserungen an atmosphärischen Gasbrennern
FR2866696A1 (fr) * 2004-02-20 2005-08-26 Chaffoteaux Et Maury Perfectionnements aux bruleurs a gaz de type atmospherique
CN104896511A (zh) * 2015-05-29 2015-09-09 北京航空航天大学 一种用于低排放燃烧室的燃油预混装置
EP3324114A1 (de) * 2016-11-21 2018-05-23 Pro-Iroda Industries, Inc. Heizpistole mit verbesserten flussauswirkungen
US10094590B2 (en) 2016-11-21 2018-10-09 Pro-Iroda Industries, Inc. Heat gun having improved flow effects
CN107781808A (zh) * 2017-11-24 2018-03-09 珠海格力电器股份有限公司 燃烧装置及壁挂炉
CN107781808B (zh) * 2017-11-24 2023-03-14 珠海格力电器股份有限公司 燃烧装置及壁挂炉
EP3584499A4 (de) * 2018-01-16 2020-02-19 Wuhu Midea Kitchen And Bath Appliances Mfg. Co, Ltd. Flammenverteiler sowie brenner und wassererhitzer mit verwendung davon
CN108534139A (zh) * 2018-05-15 2018-09-14 芜湖美的厨卫电器制造有限公司 燃烧器及热水器
CN110578920A (zh) * 2018-06-08 2019-12-17 美的集团股份有限公司 燃烧器和燃气热水器
EP3597999A1 (de) * 2018-07-20 2020-01-22 Guangdong Vanward New Electric Co., Ltd. Gas-wassererhitzer und brenner dafür

Also Published As

Publication number Publication date
ATE184977T1 (de) 1999-10-15
FR2740202A1 (fr) 1997-04-25
DE69604357T2 (de) 2000-01-20
EP0769656B1 (de) 1999-09-22
FR2740202B1 (fr) 1997-12-12
DE69604357D1 (de) 1999-10-28
DK0769656T3 (da) 1999-12-20
ES2136378T3 (es) 1999-11-16
GR3032185T3 (en) 2000-04-27

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