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EP0529042B1 - Bruleur a gaz avec premelange - Google Patents

Bruleur a gaz avec premelange Download PDF

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Publication number
EP0529042B1
EP0529042B1 EP92906615A EP92906615A EP0529042B1 EP 0529042 B1 EP0529042 B1 EP 0529042B1 EP 92906615 A EP92906615 A EP 92906615A EP 92906615 A EP92906615 A EP 92906615A EP 0529042 B1 EP0529042 B1 EP 0529042B1
Authority
EP
European Patent Office
Prior art keywords
gas
burner
mixture
gas jet
outlets
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
EP92906615A
Other languages
German (de)
English (en)
Other versions
EP0529042A1 (fr
Inventor
Martina Hansmann
Ralph Hobmeyr
Peter Lübke
Rainer Otminghaus
Heinz Thomas
Konrad Weber
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.)
Nv Vaillant Sa
VAILLANT B.V.
Vaillant Austria GmbH
Vaillant GmbH
Vaillant SARL
Vaillant Ltd
Original Assignee
Vaillant Austria GmbH
Nv Vaillant Sa
Joh Vaillant GmbH and Co
Vaillant GmbH
Vaillant SARL
Vaillant Ltd
Vaillant BV
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
Priority claimed from AT0053091A external-priority patent/AT395764B/de
Priority claimed from AT0053991A external-priority patent/AT398339B/de
Priority claimed from AT0052891A external-priority patent/AT398471B/de
Priority claimed from AT0053191A external-priority patent/AT399568B/de
Priority claimed from AT0053491A external-priority patent/AT398344B/de
Priority claimed from AT0052991A external-priority patent/AT398472B/de
Priority claimed from AT0053291A external-priority patent/AT398343B/de
Application filed by Vaillant Austria GmbH, Nv Vaillant Sa, Joh Vaillant GmbH and Co, Vaillant GmbH, Vaillant SARL, Vaillant Ltd, Vaillant BV filed Critical Vaillant Austria GmbH
Publication of EP0529042A1 publication Critical patent/EP0529042A1/fr
Application granted granted Critical
Publication of EP0529042B1 publication Critical patent/EP0529042B1/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
    • F23D14/02—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
    • 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
    • F23D14/64—Mixing devices; Mixing tubes with injectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N3/00—Regulating air supply or draught
    • F23N3/04—Regulating air supply or draught by operation of single valves or dampers by temperature sensitive elements
    • F23N3/047—Regulating air supply or draught by operation of single valves or dampers by temperature sensitive elements using mechanical means
    • 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
    • F23D2900/14642—Special features of gas burners with jet mixers with more than one gas injection nozzles or orifices for a single mixing tube
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2225/00—Measuring
    • F23N2225/08—Measuring temperature
    • F23N2225/16—Measuring temperature burner temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/02—Air or combustion gas valves or dampers
    • F23N2235/06—Air or combustion gas valves or dampers at the air intake

Definitions

  • the invention relates to a premix gas burner according to the preamble of the independent claim.
  • premix gas burners are known in a variety of atmospherically operated versions, that is to say the gas (natural gas, liquefied petroleum gas or town gas) is supplied through a nozzle under pre-pressure, and the air is entrained by the gas jet pulse via the gap between the gas nozzle and the inlet of the mixing tube and mixed in.
  • gas natural gas, liquefied petroleum gas or town gas
  • the aim of the invention is to avoid these disadvantages and to propose a burner of the type mentioned at the outset, in which the flame front remains largely constant over the entire surface of the burner chamber.
  • the burner tube is covered with a cap above the mouth of the mixing tube, the inlets of which are arranged to the side of the projection of the mixing tube.
  • the cap is provided with mixture outlet openings at which flames form. The size and spacing of these mixture outlet openings correspond to those of the rest of the burner tube.
  • an atmospheric gas burner is known from GB-OS 05 21 05 026, the mixture outlet openings of which in the area of the mixing tube mouths have a different distribution on the top of the burner chamber than in the other areas. This results in an uneven flame front.
  • the invention provides that the outlet cross section of each mixture outlet opening and the total cross section of all mixture outlet openings in the region of the projection of the mixing tubes onto the top of the burner chamber is smaller than in the rest of the region.
  • This configuration ensures that the outlet resistance for the gas / primary air mixture is increased in the extension of the axes of the mixing tubes, so that less gas / primary air mixture emerges here than in the other areas which are not hit directly by the gas / primary air jet. In this way, the flame formation is evened out over the entire surface of the burner chamber and, as a result, the emission of pollutants is reduced.
  • An atmospheric gas burner for a boiler has a burner chamber 1 which has an approximately prismatic shape. On its top 2, the burner chamber 1 has a plurality of mixture outlet openings in the form of slots 3 and holes 4.
  • a mixing tube unit 5 which has individual mixing tubes 6, the mixing tubes 6 each being impressed in half in two sheet metal shells.
  • the inlets 7 of the mixing tubes 6 are aligned with gas nozzles 8, all gas nozzles 8 being supplied with natural gas, city gas or liquid gas from a gas line.
  • Air is entrained under the injection effect of the gas jet from a gap 9 between the gas nozzle 8 and the inlet 7, so that a gas / primary air mixture forms in the interior of the mixing tubes 6 and is fed to the underside 10 of the burner chamber 1 and thus to the interior of the burner chamber.
  • FIG. 2 It can be seen in FIG. 2 that there are three hole areas 11 and four slot areas 12.
  • a hole area 11 is arranged where the projection of a Mixing tube 6 on the top 2 of the burner chamber 1 results, optionally with a more or less enlarged environment. This can be seen from FIG. 2 because part of the top of the combustion chamber 1 is cut away. It is thus also understandable that the three mixing tubes 6 according to FIG. 1 lying in one plane are opposite three hole regions 11 according to FIG. 2. In the perforated areas 11, the exit of the gas-primary air mixture through the top 2 of the combustion chamber 1 is braked strongly, so that due to the relatively small diameter of the holes, only a small amount of gas-primary air mixture passes through the top 2 of the burner chamber 1.
  • the gas burns -Air mixture here with a relatively small flame.
  • the flow resistance for the gas-air mixture is considerably lower, on the other hand these areas are not directly opposite the blow-out area of the individual mixing tubes 6, so that the gas primary air pressure is lower here, due to the enlarged outlet cross sections of the mixture outlet openings 3
  • flames then emerge here at a height which is equal to the height which occurs directly in the extension of the axes 13 of the mixing tubes at the mixture outlet openings 4 which are reduced there.
  • FIGS. 3 and 4 A detail of the upper side 2 of the burner chamber 1 is shown in FIGS. 3 and 4. It can be seen that the slot 3 is located in the region of an elevation 14 which projects beyond the other surface of the upper side 2.

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)

Claims (3)

  1. Brûleur à gaz à mélange préalable avec au moins une buse à gaz (8) sur une conduite canalisant le gaz, et avec au moins un tube mélangeur (6) disposé à une certaine distance de la buse (8) et dont l'entrée (7) se rétrécie en direction du corps du brûleur, au moins une rampe (1) étant prévue dont l'intérieur est alimenté en un mélange gaz-air par le tube (6) et dont la face supérieure (2) est munie de becs (3; 4) où se forment les flammes, caractérisé par le fait que le diamètre intérieur de chaque bec (4) et le diamètre intérieur total de tous les becs (4) dans la zone (11) formée par la projection des tubes mélangeurs (6) sur la face supérieure (2) de la rampe (1) sont inférieurs à ceux dans la zone (12).
  2. Brûleur à gaz à mélange préalable suivant la revendication 1, caractérisé par le fait que les becs (4) dans la zone (11) correspondant à la projection des tubes mélangeurs (6) ont une forme de trou circulaire (4), tandis que ceux dans la zone (12) sont des ouvertures (3) à peu près rectangulaires.
  3. Brûleur à gaz à mélange préalable suivant les revendications 1 ou 2, caractérisé par le fait que les ouvertures (3) se trouvent chacune sur une partie en saillie (14) de la face supérieure (2) de la rampe (1).
EP92906615A 1991-03-12 1992-03-07 Bruleur a gaz avec premelange Expired - Lifetime EP0529042B1 (fr)

Applications Claiming Priority (19)

Application Number Priority Date Filing Date Title
AT0053991A AT398339B (de) 1991-03-12 1991-03-12 Atmosphärischer gasbrenner
AT0052891A AT398471B (de) 1991-03-12 1991-03-12 Vormischgasbrenner
AT0053191A AT399568B (de) 1991-03-12 1991-03-12 Heizeinrichtung
AT0053491A AT398344B (de) 1991-03-12 1991-03-12 Vormischgasbrenner
AT531/91 1991-03-12
AT529/91 1991-03-12
AT534/91 1991-03-12
AT0052991A AT398472B (de) 1991-03-12 1991-03-12 Vormischgasbrenner
AT528/91 1991-03-12
AT0053091A AT395764B (de) 1991-03-12 1991-03-12 Vormischgasbrenner
AT0053291A AT398343B (de) 1991-03-12 1991-03-12 Vormischgasbrenner
AT530/91 1991-03-12
AT532/91 1991-03-12
AT539/91 1991-03-12
DE9200782U 1992-01-21
DE9200782 1992-01-21
DE9200851 1992-01-22
DE9200851U 1992-01-22
PCT/DE1992/000208 WO1992016796A1 (fr) 1991-03-12 1992-03-07 Bruleur a gaz avec premelange

Publications (2)

Publication Number Publication Date
EP0529042A1 EP0529042A1 (fr) 1993-03-03
EP0529042B1 true EP0529042B1 (fr) 1997-01-02

Family

ID=27575544

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92906615A Expired - Lifetime EP0529042B1 (fr) 1991-03-12 1992-03-07 Bruleur a gaz avec premelange

Country Status (5)

Country Link
EP (1) EP0529042B1 (fr)
JP (1) JPH05508469A (fr)
AT (1) ATE147149T1 (fr)
DE (2) DE59207795D1 (fr)
WO (1) WO1992016796A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT401565B (de) * 1994-11-28 1996-10-25 Vaillant Gmbh Atmosphärischer vormischgasbrenner
JP3531656B2 (ja) * 1995-01-27 2004-05-31 株式会社ガスター バーナユニット
CN103017170A (zh) * 2012-12-19 2013-04-03 普鲁卡姆电器（上海）有限公司 一种带燃气空气混合装置的多气源燃气控制系统
SG11201510379YA (en) * 2013-06-26 2016-01-28 Rinnai Kk Stove burner

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE149575C (fr) * 1902-03-24
DE2737902A1 (de) * 1977-08-23 1979-03-08 Haller Meurer Werke Ag Gasheizgeraet
DE2752663A1 (de) * 1977-11-25 1979-05-31 Haller Meurer Werke Ag Gasheizgeraet
GB2105026B (en) * 1981-07-24 1985-03-27 Furigas An atmospheric gas burner
DE3306892A1 (de) * 1983-02-26 1984-08-30 Jörg 8775 Partenstein Köster Gasbrenner zur beheizung von industrieoefen

Also Published As

Publication number Publication date
ATE147149T1 (de) 1997-01-15
WO1992016796A1 (fr) 1992-10-01
JPH05508469A (ja) 1993-11-25
DE59207795D1 (de) 1997-02-13
EP0529042A1 (fr) 1993-03-03
DE9203306U1 (de) 1992-06-04

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