EP0589852B1 - Brûleur atmosphérique à gaz avec combustion à faible taux d'oxydes d'azote et de carbone - Google Patents

Brûleur atmosphérique à gaz avec combustion à faible taux d'oxydes d'azote et de carbone Download PDF

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Publication number
EP0589852B1
EP0589852B1 EP93830368A EP93830368A EP0589852B1 EP 0589852 B1 EP0589852 B1 EP 0589852B1 EP 93830368 A EP93830368 A EP 93830368A EP 93830368 A EP93830368 A EP 93830368A EP 0589852 B1 EP0589852 B1 EP 0589852B1
Authority
EP
European Patent Office
Prior art keywords
combustion
gas burner
fuel gas
central
holes
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
EP93830368A
Other languages
German (de)
English (en)
Other versions
EP0589852A1 (fr
Inventor
Dante C/O Ferroli S.P.A. Ferroli
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.)
Ferroli SpA
Original Assignee
Ferroli SpA
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 Ferroli SpA filed Critical Ferroli SpA
Publication of EP0589852A1 publication Critical patent/EP0589852A1/fr
Application granted granted Critical
Publication of EP0589852B1 publication Critical patent/EP0589852B1/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
    • F23D14/10—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
    • F23D14/26—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid with provision for a retention flame
    • 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
    • F23D2900/00003—Fuel or fuel-air mixtures flow distribution devices upstream of the outlet

Definitions

  • the combustion head tends to over-heat, mainly as the pressure of the mixture to the burner decreases to minimum values, thereby will occur very high emissions of nitrogen oxides and carbon oxide.
  • the aim of the present invention is to overcome the above mentioned drawbacks, by providing a gas burner, of the atmospheric type, specifically designed to provide a combustion generating low amounts of nitrogen oxides and carbon oxide, and which is specifically designed to greatly increase the air amount which is admixed with the fuel gas, so as to reduce the generation of combustion polluting materials.
  • the fuel gas inlet indicated at the reference number 3 extends with an U-shape
  • the fuel gas inlet of the burner shown in Figure 4, and indicated at the reference number 5 extends, after a starting rectilinear portion, in two split arms 6.
  • the main feature of the present invention is that, at the fuel gas inlets 3 and 5, there is provided at least a Venturi pipe or tube 10, which is provided for allowing the supplying of a high amount of air to be admixed with the fuel gas.
  • Venturi tubes so as to provide an aeration of 120%, with a full or complete mixing between air and gas.
  • the inlets extend in a per se known manner and converge to a combustion head, generally indicated at the reference number 20, which is obtained from the particular configuration of the sheet metal elements defining the side surfaces of the bodies of the burner.
  • the central hole row 21 has the very important function to drive the flame in a continuous and safe way, so as to prevent the flame from moving away or detaching from the burner, thereby always providing very good combustion conditions.
  • the central hole row provides a continuous pilot flame, adjoining the elongated holes 23 of the side regions 24, where the combustion proper is performed.
  • the high amount of air supplied to the mixture prevent the combustion head from overheating, even if the burner is used in flame modulation system, under a low operation pressure condition.
  • a gas burner has been provided which is particularly suitable for heating systems and/or for producing hot water for hygienic and sanitary use.

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

Claims (4)

  1. Un brûleur à gaz du type atmosphérique foumissant une combustion produisant des taux réduits d'oxydes d'azote et d'oxyde de carbone, comprenant un corps de brûleur (1) incluant, au voisinage d'une entrée pour le gaz combustible (3), un tube de Venturi (10) destiné à fournir une forte quantité d'air qui est mêlé au gaz combustible, et un bec de combustion (20) ayant une file centrale d'orifices (21) pour le contrôle des flammes, caractérisé en ce que les orifices de ladite file centrale d'orifices (21) sont délimités par un évidement central situé entre deux files d'orifices latérales (23) de leur part arrangées au sommet de régions latérales (24) où a lieu l'émission d'un gaz combustible, ladite file d'orifices centrale (21) fournissant une flamme pilote continue voisine des orifices allongés desdites régions latérales (24) où a lieu la combustion proprement dite, en ce que ladite file d'orifices centrale (21) se trouve sur une partie saillante par rapport aux orifices desdites régions latérales (24), et en ce que ledit tube de Venturi (10) fournit une quantité d'air primaire égale à 120% de la quantité stoechiométrique d'air requise pour la combustion.
  2. Un brûleur à gaz selon la revendication 1, caractérisé en ce que l'entrée pour le gaz combustible (3) s'étend suivant la forme d'un U.
  3. Un brûleur à gaz selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que ladite entrée de gaz combustible (3) suit une partie rectiligne (5) et se branche en deux bras séparés (6).
  4. Un brûleur à gaz selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que ladite file centrale d'orifices (21) pour le contrôle des flammes est dotée d'orifices à coupe transversale réduite par comparaison avec celle des orifices de combustion qui sont formés dans lesdites régions latérales (24) voisines de ladite file centrale (21).
EP93830368A 1992-09-24 1993-09-10 Brûleur atmosphérique à gaz avec combustion à faible taux d'oxydes d'azote et de carbone Expired - Lifetime EP0589852B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI922203A IT1256149B (it) 1992-09-24 1992-09-24 Bruciatore a gas di tipo atmosferico con combustione a bassa produzione di ossidi di azoto e di ossidi di carbonio
ITMI922203 1992-09-24

Publications (2)

Publication Number Publication Date
EP0589852A1 EP0589852A1 (fr) 1994-03-30
EP0589852B1 true EP0589852B1 (fr) 1997-01-29

Family

ID=11364000

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93830368A Expired - Lifetime EP0589852B1 (fr) 1992-09-24 1993-09-10 Brûleur atmosphérique à gaz avec combustion à faible taux d'oxydes d'azote et de carbone

Country Status (5)

Country Link
EP (1) EP0589852B1 (fr)
AT (1) ATE148548T1 (fr)
DE (1) DE69307816T2 (fr)
ES (1) ES2098718T3 (fr)
IT (1) IT1256149B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT407908B (de) * 1998-08-03 2001-07-25 Vaillant Gmbh Flächenbrenner

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2740202B1 (fr) * 1995-10-19 1997-12-12 Leblanc Sa E L M Perfectionnements apportes a un bruleur de chauffe-eau, chauffe-bain, chaudiere a gaz
CN103185339B (zh) * 2011-12-28 2016-08-03 株式会社能率 浓淡火焰燃烧器及燃烧装置
ITUB20155086A1 (it) * 2015-11-05 2017-05-05 Aldo Polidoro BRUCIATORE DI GAS COMBUSTIBILE, IN PARTICOLARE PER CALDAIE E SCALDABAGNI, A BASSA EMISSIONE DI NOx E CO
TWI621813B (zh) * 2016-09-26 2018-04-21 Grand Mate Co Ltd burner
CN109751598B (zh) * 2019-03-14 2024-08-16 上海金巨源热能技术有限公司 一种具有四淡两浓直线阵列火孔芯的燃烧器

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1078951A (en) * 1965-01-12 1967-08-09 Albert Horace Greaves A new or improved gas burner
GB1148943A (en) * 1966-06-14 1969-04-16 Geo Bray & Company Ltd Improvements in or relating to gas burners
FR2102802A6 (fr) * 1968-05-02 1972-04-07 Zaegel Held Sa
DE3043215A1 (de) * 1980-11-15 1982-06-24 Robert Bosch Gmbh, 7000 Stuttgart Atomphaerischer allgasbrenner, insbesondere fuer gasbeheizte haushaltgeraete
RO114675B1 (ro) * 1987-08-03 1999-06-30 Worgas Bruciatori Srl METODA SI ARZATOR PENTRU COMBUSTIA GAZELOR NATURALE CU EMISIE JOASA DE NOx, CO

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT407908B (de) * 1998-08-03 2001-07-25 Vaillant Gmbh Flächenbrenner

Also Published As

Publication number Publication date
IT1256149B (it) 1995-11-29
EP0589852A1 (fr) 1994-03-30
DE69307816D1 (de) 1997-03-13
ITMI922203A0 (it) 1992-09-24
ITMI922203A1 (it) 1994-03-24
DE69307816T2 (de) 1997-05-28
ATE148548T1 (de) 1997-02-15
ES2098718T3 (es) 1997-05-01

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