EP0415008B1 - Procédé de combustion dans un brûleur à gaz - Google Patents

Procédé de combustion dans un brûleur à gaz Download PDF

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Publication number
EP0415008B1
EP0415008B1 EP90110796A EP90110796A EP0415008B1 EP 0415008 B1 EP0415008 B1 EP 0415008B1 EP 90110796 A EP90110796 A EP 90110796A EP 90110796 A EP90110796 A EP 90110796A EP 0415008 B1 EP0415008 B1 EP 0415008B1
Authority
EP
European Patent Office
Prior art keywords
course
flame
afterburning
gas
layer
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.)
Expired - Lifetime
Application number
EP90110796A
Other languages
German (de)
English (en)
Other versions
EP0415008A1 (fr
Inventor
Detlef Bohmann
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.)
Klockner Warmetechnik Zweigniederlassung Hechingen GmbH
Original Assignee
Klockner Warmetechnik Zweigniederlassung Hechingen GmbH
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 Klockner Warmetechnik Zweigniederlassung Hechingen GmbH filed Critical Klockner Warmetechnik Zweigniederlassung Hechingen GmbH
Publication of EP0415008A1 publication Critical patent/EP0415008A1/fr
Application granted granted Critical
Publication of EP0415008B1 publication Critical patent/EP0415008B1/fr
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
    • F23D14/82—Preventing flashback or blowback
    • 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
    • F23D14/12—Radiant burners
    • F23D14/16—Radiant burners using permeable blocks
    • 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
    • F23D2203/00—Gaseous fuel burners
    • F23D2203/10—Flame diffusing means
    • F23D2203/105—Porous plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2212/00—Burner material specifications
    • F23D2212/20—Burner material specifications metallic
    • F23D2212/201—Fibres

Definitions

  • the invention relates to a method for the combustion of an air / gas mixture in a gas burner for heating systems, furnaces, gas lances or the like. according to the genus of the main claim.
  • air / gas mixture is also understood to mean mixtures of air and gasified or fueled liquid fuels.
  • air / gas mixture is also understood to mean mixtures of air and gasified or fueled liquid fuels.
  • a post-combustion layer is known which lies directly on the flame-holding layer.
  • the object of the invention is therefore to create a gas burner of the type mentioned at the outset, in which excessive temperatures, in particular on the flame-retaining layer, are avoided.
  • the lower areas of the flames between the two layers stand out from the flame holding layer due to the pressure or the speed of the gas mixture and can no longer heat them up.
  • Another advantage is that by varying the distance between the two layers and the pore size of the second plate, the afterburning temperature can be adapted to the respective needs, regardless of the flame size or the flame temperature, so that the temperature is sufficiently high to oxidize the CO - Components can be set, but not so high that additional NOx components could arise.
  • the flame holding layer and the afterburning layer are expediently designed as a porous layer, as a fine wire mesh, as a wire pressed body, as a sintered body or as a layer provided with fine bores. Training is particularly cheap the porous layer as a foamed ceramic layer.
  • the wire mesh or the wire pressing body can consist of metal wire, ceramic fibers or glass fibers.
  • the post-combustion is advantageously carried out in the passages of the post-combustion layer which are coarser with respect to the flame holding layer and which allow combustion flames to be formed therein.
  • the flame holding layer and the afterburning layer can be formed as parallel, flat layers, which represents a particularly simple and inexpensive embodiment. However, in order to increase the effective area, it is also possible to form the flame holding layer and the afterburning layer as concentric layers, in particular as circular cylindrical layers.
  • the air / gas mixture can be optimally mixed in a mixing chamber upstream of the flame holding layer, which preferably has mixing elements.
  • the gas burner shown in FIG. 1 as the first exemplary embodiment consists of a mixing chamber 10 into which one first line 11 for the supply of air (L) or another oxygen-containing gas and a second line 12 for the supply of a combustion gas (G) such as natural gas, propane, butane, hydrogen or the like. flow into.
  • a combustion gas such as natural gas, propane, butane, hydrogen or the like.
  • a gasified or sprayed flammable liquid can also replace a gas.
  • the two lines 11, 12 open asymmetrically and essentially perpendicular to one another in the mixing chamber 10 in order to achieve thorough mixing.
  • the mixing chamber 10 is connected on the output side via a narrower passage 13 to the actual burner area 14, which initially widens conically steeply from the passage 13 and then opens into a circular-cylindrical area 15.
  • a circular disk-shaped flame holding layer 16 is arranged on the input side, with a likewise circular disk-shaped afterburning layer 17 being arranged at the exit parallel to the flame holding layer 16 and at a distance therefrom.
  • Both layers 16, 17 must have a large number of small passages in order to permit the passage of the mixture on the inlet side and the passage of the exhaust gas on the outlet side.
  • the layers are designed as porous layers, for example as foamed ceramic layers, or as fine wire mesh, as wire pressed bodies, as sintered bodies or as layers provided with fine bores.
  • a design as wire mesh or wire pressed body for example metal wire, ceramic fibers or glass fibers are used.
  • the gas mixture mixed in the mixing chamber 10 is preferably fed in a stoichiometric composition via the passage 13 to the burner area 14, where it passes through the flame holding layer 16 and is distributed uniformly there.
  • the mixture is then ignited by a known ignition device (not shown in detail), as a result of which a large number of small flames are formed at the outlet of the flame holding layer 16 as a result of the many small passages and are distributed essentially uniformly over the flame holding layer 16.
  • the material and the formation of the small passages in the flame holding layer are chosen so that a flame flashback is not possible in a known manner.
  • the afterburning layer 17 is designed such that the flames can also penetrate into this afterburning layer 17. Coarser passageways are generally required for this.
  • the temperature of the afterburning layer 17 is selected by adjusting the distance and other measures so that the oxidation of CO to CO2 takes place in a favorable manner, but that the temperature required for the formation of NOx is not reached. As a result, the low NOx content per se in such gas burners remains obtained while the CO content is further reduced. With this burner, NOx values and CO values of less than 5 ppm can be achieved with optimum efficiency.
  • FIG. 2 The embodiment shown in FIG. 2 is basically the same, but there is a mixing chamber 18 as a tube narrowing when it flows into a burner area 19, air and gas being introduced from the tube inlet.
  • a spiral-shaped mixing element 20 is arranged in the mixing chamber 18 for better mixing.
  • this can also have other forms which are suitable for mixing.
  • the burner region 19 is of circular cylindrical design, a flame holding layer 21 and a post-combustion layer 22 being arranged one above the other as concentric tubes. In between there is an air gap in which the small flames can form.
  • part of the exhaust gas can be returned to the combustion process via exhaust gas guide elements 23. This takes place through openings 24 in the burner area 19, which are arranged concentrically around the junction of the mixing chamber 18.
  • the post-combustion layer having to be arranged downstream of the flame-holding layer.
  • the flame-holding layer for example, polygonal, spherical, ellipsoidal, hemispherical or similar arrangements are also conceivable.

Landscapes

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

Claims (6)

  1. Procédé de combustion d'un mélange air/gaz dans un brûleur à gaz destiné à des installations de chauffage, chaufferies, lances à gaz ou similaires, dans lequel le mélange air/gaz est acheminé vers une couche de retenue des flammes (16 ; 21) empêchant le retour de flamme, pourvue d'une pluralité de petites ouvertures, sur le côté opposé au côté d'alimentation en mélange de laquelle des flammes de combustion se forment après inflammation du mélange, une couche de postcombustion (17 ; 22), située du côté des flammes, étant prévue à côté de la couche de retenue des flammes (16 ; 21), étant susceptible d'être chauffée par les flammes de combustion et présentant une pluralité de petites ouvertures, caractérisé en ce que, du fait d'un écart adapté entre la couche de postcombustion (17 ; 22) et la couche de retenue des flammes (16 ; 21), les flammes se forment entre les deux couches (16, 17 ; 21, 22), et en ce que les flammes de combustion chauffent la couche de postcombustion (17 ; 22) et peuvent pénétrer au moins partiellement dans celle-ci.
  2. Procédé selon la revendication 1, caractérisé en ce que la postcombustion s'effectue dans les ouvertures de la couche de postcombustion (17 ; 22) qui sont plus grosses que celles de la couche de retenue des flammes (16 ; 21).
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que la couche de retenue des flammes (16) et la couche de postcombustion (17) sont disposées en parallèle, et côte à côte selon une disposition plane.
  4. Procédé selon la revendication 1 ou 2, caractérisé en ce que la couche de retenue des flammes (21) et la couche de postcombustion (22) sont disposées de façon concentrique et, en particulier, l'une dans l'autre selon une disposition cylindrique et circulaire.
  5. Procédé selon l'une des revendications précédentes, caractérisé en ce que le mélange air/gaz est réalisé à l'intérieur d'une chambre de mélange (10 ; 18) située en amont de la couche de retenue des flammes (16 ; 21), dans laquelle sont prévus, de préférence, des éléments mélangeurs (20).
  6. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'une partie des gaz d'échappement est renvoyée en direction du côté d'entrée de la couche de retenue des flammes (16 ; 21), en particulier au moyen d'éléments de guidage (23) des gaz d'échappement.
EP90110796A 1989-08-12 1990-06-07 Procédé de combustion dans un brûleur à gaz Expired - Lifetime EP0415008B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3926699A DE3926699A1 (de) 1989-08-12 1989-08-12 Gasbrenner
DE3926699 1989-08-12

Publications (2)

Publication Number Publication Date
EP0415008A1 EP0415008A1 (fr) 1991-03-06
EP0415008B1 true EP0415008B1 (fr) 1994-07-20

Family

ID=6387017

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90110796A Expired - Lifetime EP0415008B1 (fr) 1989-08-12 1990-06-07 Procédé de combustion dans un brûleur à gaz

Country Status (3)

Country Link
EP (1) EP0415008B1 (fr)
AT (1) ATE108883T1 (fr)
DE (2) DE3926699A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006006882A1 (fr) * 2004-07-13 2006-01-19 Fisher & Paykel Appliances Limited Appareil chauffant au gaz

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AT394768B (de) * 1990-11-02 1992-06-25 Chamottewaren U Thonoefenfabri Brennerflammenfuehrungsteil
NL9101896A (nl) * 1991-11-14 1993-06-01 Witteveen Gustaaf J Premix-gasbrander.
CZ278788B6 (en) * 1992-10-09 1994-06-15 Hynek Mikusek Combustion system of heating gas condensation sets
AT400753B (de) * 1994-05-06 1996-03-25 Vaillant Gmbh Verfahren zur herstellung einer sintermetall-brennerplatte
US6196164B1 (en) 1995-04-04 2001-03-06 Srp 687 Pty. Ltd. Ignition inhibiting gas water heater
US6155211A (en) * 1995-04-04 2000-12-05 Srp 687 Pty Ltd. Air inlets for water heaters
US6003477A (en) * 1995-04-04 1999-12-21 Srp 687 Pty. Ltd. Ignition inhibiting gas water heater
US6295951B1 (en) 1995-04-04 2001-10-02 Srp 687 Pty. Ltd. Ignition inhibiting gas water heater
US5797355A (en) * 1995-04-04 1998-08-25 Srp 687 Pty Ltd Ignition inhibiting gas water heater
US6135061A (en) * 1995-04-04 2000-10-24 Srp 687 Pty Ltd. Air inlets for water heaters
US6085699A (en) * 1995-04-04 2000-07-11 Srp 687 Pty Ltd. Air inlets for water heaters
WO1997049952A1 (fr) * 1996-06-25 1997-12-31 Koehne Heinrich Procede et structure d'un bruleur pour la combustion superficielle pour combustibles liquides
NL1005800C2 (nl) * 1996-11-16 1999-05-10 Fasto Nefit Bv Branderlichaam voor een brander voor gasvormige brandstoffen.
ES2210630T3 (es) * 1997-08-29 2004-07-01 Tokyo Gas Company Limited Estructura de prevencion de fugas para caja de un quemador de combustion de superficie.
US6269779B2 (en) 1998-08-21 2001-08-07 Srp 687 Pty Ltd. Sealed access assembly for water heaters
US6142106A (en) * 1998-08-21 2000-11-07 Srp 687 Pty Ltd. Air inlets for combustion chamber of water heater
US6302062B2 (en) 1998-08-21 2001-10-16 Srp 687 Pty Ltd. Sealed access assembly for water heaters
US6223697B1 (en) 1998-08-21 2001-05-01 Srp 687 Pty Ltd. Water heater with heat sensitive air inlet
US6293230B1 (en) * 1998-10-20 2001-09-25 Srp 687 Pty Ltd. Water heaters with flame traps
US5950573A (en) * 1998-10-16 1999-09-14 Srp 687 Pty. Ltd. Power vented water heater with air inlet
GB9827620D0 (en) * 1998-12-16 1999-02-10 Bray Burners Ltd Gas burner
DE19901145A1 (de) * 1999-01-14 2000-07-20 Krieger Gmbh & Co Kg Als Flächenstrahler ausgebildeter Infrarot-Strahler
US6709264B2 (en) * 2001-11-20 2004-03-23 General Motors Corporation Catalytic combuster
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EP1715247A1 (fr) * 2005-04-19 2006-10-25 Paul Scherrer Institut Brûleur
DE102006012168B4 (de) * 2006-03-14 2009-05-07 Gvp Gesellschaft Zur Vermarktung Der Porenbrennertechnik Mbh Brenner zur Verbrennung von Flüssigbrennstoff
DE102007037971B4 (de) * 2007-08-11 2018-11-29 Gvp Gesellschaft Zur Vermarktung Der Porenbrennertechnik Mbh Heißluftgebläse
DE102008000010B4 (de) 2008-01-07 2010-10-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Plattenförmiger keramischer Wärmestrahlkörper eines Infrarot-Flächenstrahlers
CN102563639B (zh) * 2011-12-30 2014-01-29 西安交通大学 一种液体燃料用多孔介质-热管燃烧器
US10458649B2 (en) 2013-02-14 2019-10-29 Clearsign Combustion Corporation Horizontally fired burner with a perforated flame holder
CN105556210B (zh) * 2013-09-23 2018-07-24 克利尔赛恩燃烧公司 用于低nox燃烧的多孔火焰保持器
EP3055615A4 (fr) * 2013-10-07 2017-08-09 Clearsign Combustion Corporation Brûleur à émission horizontale équipé d'un stabilisateur de flamme perforé
CN105579776B (zh) 2013-10-07 2018-07-06 克利尔赛恩燃烧公司 具有有孔火焰保持器的预混燃料燃烧器
CN105437523A (zh) * 2014-08-21 2016-03-30 佛山市中豹科技发展有限公司 一种燃气吸塑机
PT109048A (pt) * 2015-12-22 2017-06-22 Bosch Termotecnologia Sa Dispositivo de queimador
DE102016206247A1 (de) 2016-04-14 2017-11-02 Gvp Gesellschaft Zur Vermarktung Der Porenbrennertechnik Mbh Flächenbrenner
DE102020125351A1 (de) 2020-09-29 2022-03-31 Vaillant Gmbh Gasheizgerät
DE102021121764A1 (de) 2021-08-23 2023-02-23 Viessmann Climate Solutions Se Gasbrennervorrichtung
RU209658U1 (ru) * 2021-11-29 2022-03-17 Иван Соломонович Пятов Инфракрасная газовая горелка

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006006882A1 (fr) * 2004-07-13 2006-01-19 Fisher & Paykel Appliances Limited Appareil chauffant au gaz

Also Published As

Publication number Publication date
DE59006485D1 (de) 1994-08-25
EP0415008A1 (fr) 1991-03-06
ATE108883T1 (de) 1994-08-15
DE3926699A1 (de) 1991-02-14

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