EP0191722B1 - Brûleur à rampes pour un appareil chauffé au gaz - Google Patents

Brûleur à rampes pour un appareil chauffé au gaz Download PDF

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Publication number
EP0191722B1
EP0191722B1 EP86730020A EP86730020A EP0191722B1 EP 0191722 B1 EP0191722 B1 EP 0191722B1 EP 86730020 A EP86730020 A EP 86730020A EP 86730020 A EP86730020 A EP 86730020A EP 0191722 B1 EP0191722 B1 EP 0191722B1
Authority
EP
European Patent Office
Prior art keywords
burner
gas
row
flame openings
semimonocoques
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
EP86730020A
Other languages
German (de)
English (en)
Other versions
EP0191722A2 (fr
EP0191722A3 (en
Inventor
Georg Hein
Heinz Thomas
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.)
Vaillant BV
Original Assignee
Vaillant Austria GmbH
Nv Vaillant Sa
Joh Vaillant GmbH and Co
Vaillant GmbH
Vaillant SARL
Vaillant Ltd
SCHONEWELLE 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
Application filed by Vaillant Austria GmbH, Nv Vaillant Sa, Joh Vaillant GmbH and Co, Vaillant GmbH, Vaillant SARL, Vaillant Ltd, SCHONEWELLE BV filed Critical Vaillant Austria GmbH
Priority to AT86730020T priority Critical patent/ATE63784T1/de
Publication of EP0191722A2 publication Critical patent/EP0191722A2/fr
Publication of EP0191722A3 publication Critical patent/EP0191722A3/de
Application granted granted Critical
Publication of EP0191722B1 publication Critical patent/EP0191722B1/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
    • 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

Definitions

  • the invention relates to a row burner for a gas-fired device according to the preamble of the main claim.
  • a burner described in DE-A-30 22 763 is provided with additional combustion openings arranged between the burner tubes in order to facilitate the ignition process.
  • a universal burner is also known from DE-A-16 29 964, in which the burner head is provided with openings which are inclined towards one another in pairs and each form an elementary flame.
  • a burner has become known from GB-A-11 89 364, which has baffles arranged directly in front of mixture outlet slots for guiding and distributing the gas stream.
  • the disadvantage of all three burners is the considerable nitrogen oxide emission, especially when the Gas-air mixture.
  • the object of the present invention is to reduce the proportion of nitrogen oxides (NO x ) in the combustion gases by designing the burners and their elements when the gas-air mixture changes.
  • the two inserts of the two half-shells which are connected to one another in regions, can also delimit a third row of combustion openings running in the plane of symmetry of the row burner.
  • FIG. 1 shows a schematic longitudinal section through a once-through water heater
  • Figure 2 is an associated end view of the side-by-side burner
  • Figure 3 is an associated top view
  • Figure 4 is a partial section according to IV-IV of Figure 3 on a larger scale
  • 5 shows a similar section according to VV of FIG. 3 through the head of a single row burner
  • Figure 6 is a side view of a row burner
  • Figure 7 is a plan view.
  • the gas-heated water heater shown comprises an insulating wall 1 which encloses a combustion chamber 2, above which a heat exchanger 4 provided with ribs 3 is located.
  • At least one row burner 5 which has a plurality of burner chambers 20 composed of two half-shells 14 each, the upper sides of which are gas-mixture distribution chambers 6 are closed, which have combustion openings 7 and 8 and include vertical mixing channels 10 opening into this gas mixture distribution chamber 6 with regionally shaped impressions 9, to which, on the underside, individual gas outlet nozzles 12 which are formed on a gas supply pipe 11 and are formed on a gas supply pipe 11 are coaxially assigned.
  • FIGS. 2 and 3 show, five burner chambers 20, each with, for example, three mixing channels 10, are provided below the common burner chamber 2 of the device.
  • Figures 4 and 5 show the design of the upper areas of such a row burner 5 formed by the two half-shells 14, which - as is known per se - has a constriction 15 below the gas-mixture distribution chamber 6.
  • each of the two half-shells 14 has an insert 16 formed from sheet metal, which - connected only in sections - to the walls of the half-shells 14, forms two laterally extending rows 13 of combustion openings 7 and 8 together with these walls that take turns.
  • the larger combustion openings 7 have an approximately rectangular clear cross section and are the main combustion openings, which are smaller combustion openings 8 Auxiliary combustion openings with an approximately circular cross-section.
  • combustion openings 7 and 8 are delimited by area-specific impressions 9 and 9 'of the half-shells 14 and the inserts 16, respectively.
  • the clear cross section of the auxiliary combustion openings 8 in the lower area of the vertical course is smaller than in the mouth area or also less than that of the main burner openings 7, so that adhesive flames form there.
  • the inserts 16 do not necessarily have to be arranged in pairs within the scope of the invention, of course, but they can also extend over the entire width of the row burner, that is to say bridge the plane of symmetry 17 and be arranged half on either side of this plane 17.
  • inserts may also be advisable, if necessary, to form the inserts from other heat-resistant materials, for example from ceramic material.
  • the individual insert can then consist of a single, solid, elongated plate formed with slots and / or perforations, the longitudinal edges of which fit snugly against the upper edges of the half-shells 14.
  • FIGS. 6 and 7 Another exemplary embodiment of a row burner is shown in FIGS. 6 and 7. While in the exemplary embodiment in FIGS. 1 to 5 a burner with standing mixing channels has been described, in the burner in accordance with the exemplary embodiment in accordance with FIGS. 6 and 7 the essential thing is a deflection 30 which is provided between the mixing channels 10 and the gas-air mixture distribution chamber 6 is.
  • the deflection 30 does not necessarily have to be at the end of all premixing channels 10, the mixing channels can continue after this deflection, or the deflection can also be in the gas-mixture distribution chamber 6. It is also important in this exemplary embodiment that two or more mixing channels blow into the common gas-mixture distribution chamber 6, with which a high proportion of primary air in the gas-air mixture can be achieved.
  • the various mixing channels can also be arranged next to one another in a horizontal plane. Then the burner builds wider.
  • the individual burner chambers 20 forming a row burner are each made from two sheet metal parts 14, which each have half the impressions of the mixing channels and the mixture distribution chamber. The two sheet metal parts 14 are placed against one another and welded to one another along their circumference, optionally also in the central region.
  • the beginnings 31 of the mixing channels can be designed as widened openings 32.
  • the row burners preferably consist of sheet metal shells, but this may or may not be the case.
  • the distribution chamber or the mixing channels could also be molded into a die-cast part with half shells.

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. Brûleur à rampes multiples pour un appareil marchant au gaz, qui comprend une multitude de rampes (20) à becs multiples, constituées chacune par deux composants en tôle estampée (14) et présentant en haut des chambres de mélange/distribution (6) formées également par les composants en tôle estampée et comportant des becs à gaz (7, 8), rampes qui comportent des tubes mélangeurs (10) réalisés par des creux (9) et débouchant dans les chambres de mélange/distribution (6), et vis-à-vis desquels sont disposées coaxialement des buses (12) faisant partie du tube d'alimentation en gaz (11), caractérisé par un élément (16) inséré entre les composants en tôle (14) au-dessus des chambres de mélange/distribution (6) et qui est fixé par endroits aux parois desdits composants (14) pour former avec elles deux rangées (13) de becs à gaz (7, 8) disposées latéralement.
  2. Brûleur suivant la revendication 1, caractérisé par le fait que chaque élément (16) est divisé en deux parties en contact l'une avec l'autre par endroits dans le plan de symétrie (17) du brûleur (5).
  3. Brûleur suivant la revendication 2, caractérisé par le fait que les parties délimitent ensemble dans le plan de symétrie (17) du brûleur (5) une troisième rangée (13') de becs à gaz (7).
  4. Brûleur suivant la revendication 3, caractérisé par le fait que parmi les trois rangées (13, 13', 13) de becs à gaz (7, 8), les rangées extérieures (13) comprennent des becs principaux (7) alternant avec des becs auxiliaires (8), la rangée (13') du brûleur (5) située dans le plan de symétrie (17) se composant exclusivement de becs principaux (7).
  5. Brûleur suivant l'une des revendications 1 à 4, caractérisé par le fait que les becs à gaz (7, 8) sont délimités par des profils ménagés par endroits dans les éléments (16) ou les composants en tôle (14).
  6. Brûleur suivant l'une des revendications 1 à 5, caractérisé par le fait que l'élément (16) est constitué par une plaque faite dans une matière massive, de préférence céramique, et percée par les becs à gaz (7, 8) et dont les bords en longueur sont en contact avec les bords supérieurs opposés l'un à l'autre des composants en tôle estampée.
EP86730020A 1985-02-08 1986-02-08 Brûleur à rampes pour un appareil chauffé au gaz Expired - Lifetime EP0191722B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86730020T ATE63784T1 (de) 1985-02-08 1986-02-08 Reihenbrenner fuer ein gasbeheiztes geraet.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8503838U DE8503838U1 (de) 1985-02-08 1985-02-08 Reihenbrenner für ein gasbeheiztes Gerät
DE8503838U 1985-02-08

Publications (3)

Publication Number Publication Date
EP0191722A2 EP0191722A2 (fr) 1986-08-20
EP0191722A3 EP0191722A3 (en) 1988-04-06
EP0191722B1 true EP0191722B1 (fr) 1991-05-22

Family

ID=6777325

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86730020A Expired - Lifetime EP0191722B1 (fr) 1985-02-08 1986-02-08 Brûleur à rampes pour un appareil chauffé au gaz

Country Status (3)

Country Link
EP (1) EP0191722B1 (fr)
AT (1) ATE63784T1 (fr)
DE (3) DE8503838U1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987006998A1 (fr) * 1986-05-13 1987-11-19 Joh. Vaillant Gmbh U. Co Procede de fonctionnement d'un bruleur a gaz de premelange
JPH0617729B2 (ja) 1987-08-03 1994-03-09 ウオルガス ブルチアトリ エセ・エレ・エレ 窒素酸化物及び一酸化炭素の排出量の少ないガスバーナー
NL8900030A (nl) * 1989-01-06 1990-08-01 Remeha Fabrieken Bv Nox-arme atmosferische gasbrander.
FR2695457B1 (fr) * 1992-09-08 1994-11-04 Chaffoteaux Et Maury Perfectionnements aux brûleurs atmosphériques à gaz.
FR2730793B1 (fr) * 1995-02-16 1997-04-30 Leblanc Sa E L M Perfectionnements apportes a un bruleur de chauffe-eau, chauffe-bain, chaudiere a gaz
DE19828602C1 (de) * 1998-06-26 1999-12-23 Truma Geraetetechnik Gmbh & Co Zündbrenner

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2541710A (en) * 1948-09-21 1951-02-13 Motor Wheel Corp Sheet metal multiple gas burner
GB834788A (en) * 1955-07-11 1960-05-11 Ascot Gas Water Heaters Ltd Improvements in or relating to gas fired apparatus
FR1398066A (fr) * 1964-03-13 1965-05-07 Mélangeur pour brûleur à gaz de grande puissance
FR1505518A (fr) * 1966-11-02 1967-12-15 Saunier Duval Brûleur universel pour appareil d'utilisation domestique des gaz combustibles
GB1189364A (en) * 1967-09-27 1970-04-22 Friedrich Karl Hiby Improvements in Gas Burners
DE1751739A1 (de) * 1968-07-20 1970-08-27 Birnkraut Rudolf Geblaeseloser Vormisch-Gasbrenner mit Halteflammen
DE2151429A1 (de) * 1971-10-15 1973-04-19 Junkers & Co Brenner fuer gasbeheizte geraete
DE3022763C2 (de) * 1980-06-14 1983-05-19 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Reihenbrenner für ein gasbeheiztes Gerät

Also Published As

Publication number Publication date
DE8503838U1 (de) 1986-02-13
DE3604196C2 (de) 1997-04-24
DE3604196A1 (de) 1986-08-14
EP0191722A2 (fr) 1986-08-20
EP0191722A3 (en) 1988-04-06
ATE63784T1 (de) 1991-06-15
DE3679341D1 (de) 1991-06-27

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