EP0589852A1 - 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
EP0589852A1
EP0589852A1 EP93830368A EP93830368A EP0589852A1 EP 0589852 A1 EP0589852 A1 EP 0589852A1 EP 93830368 A EP93830368 A EP 93830368A EP 93830368 A EP93830368 A EP 93830368A EP 0589852 A1 EP0589852 A1 EP 0589852A1
Authority
EP
European Patent Office
Prior art keywords
gas burner
combustion
fuel gas
nitrogen
gas
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
EP93830368A
Other languages
German (de)
English (en)
Other versions
EP0589852B1 (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
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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 present invention relates to an atmospheric gas burner with a combustion producing low amounts of nitrogen and carbon oxides.
  • a very important problem which at present occurs in gas burners is that of reducing the emission of nitrogen oxides (NOx) and carbon oxides (CO) occurring during the combustion, because of the small amount of air which is mixed with the fuel gas.
  • NOx nitrogen oxides
  • CO carbon oxides
  • 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.
  • a main object of the present invention is to provide a gas burner, of the atmospheric type, in which the flame is prevented from moving away from the combustion head, thereby providing an optimal combustion performance under any conditions.
  • Yet another object of the present invention is to provide a gas burner the combustion head of which is prevented from overheating, even in the case in which there is used a flame modulation system, thereby preventing nitrogen or carbon oxides from being emitted.
  • Yet another object of the present invention is to provide such a gas burner, of the atmospheric type, geerating low amounts of nitrogen and carbon oxides and which, because of its specifically designed construction, is very reliable and safe in operation.
  • a gas burner of the atmospheric type, with a combustion generating low amounts of nitrogen and carbon oxides
  • said gas burner being characterized in that it comprises a burner body including, at a fuel gas inlet, at least a Venturi tube, for supplying therethrough a high air flow rate to be admixed with the fuel gas, said gas burner further including a combustion head having a central row of holes for driving the flame, said combustion head being suitable to prevent the flame from moving away therefrom.
  • the gas burner of the atmospheric type, providing a combustion with low amounts of nitrogen oxides and carbon oxides, according to the present invention, comprises a burner body, indicated at 1 in Figure 2 and at 2 in Figure 4, which bodies are provided with differently shaped fuel gas inlets.
  • 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 combustion head 20 is provided with a central hole row 21, the holes of which are delimited by a central recess 22 arranged between two side hole rows 23, arranged at the top of regions 24 in which the fuel gas is emitted.
  • 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.
  • the used materials provided that they are compatible to the intended use, as well as the contingent size and shape, can be any, depending on requirements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
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
ITMI922203 1992-09-24
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

Publications (2)

Publication Number Publication Date
EP0589852A1 true EP0589852A1 (fr) 1994-03-30
EP0589852B1 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 (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0769656A1 (fr) * 1995-10-19 1997-04-23 E.L.M. Leblanc Perfectionnement apportés à un brûleur de chauffe-eau, chauffe-bain, chaudière à gaz
CN103185339A (zh) * 2011-12-28 2013-07-03 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
EP3299716A1 (fr) * 2016-09-26 2018-03-28 Grand Mate Co., Ltd. Brûleur pour appareil à gaz
CN109751598A (zh) * 2019-03-14 2019-05-14 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

Families Citing this family (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

Citations (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
EP0052191A2 (fr) * 1980-11-15 1982-05-26 Robert Bosch Gmbh Brûleur atmosphérique à gaz, en particulier pour appareils domestiques chauffés au gaz
WO1989001116A1 (fr) * 1987-08-03 1989-02-09 Worgas Bruciatori S.R.L. PROCEDE DE COMBUSTION ET BRULEUR A GAZ A FAIBLE EMISSION DE NOx ET DE CO

Patent Citations (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
EP0052191A2 (fr) * 1980-11-15 1982-05-26 Robert Bosch Gmbh Brûleur atmosphérique à gaz, en particulier pour appareils domestiques chauffés au gaz
WO1989001116A1 (fr) * 1987-08-03 1989-02-09 Worgas Bruciatori S.R.L. PROCEDE DE COMBUSTION ET BRULEUR A GAZ A FAIBLE EMISSION DE NOx ET DE CO

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0769656A1 (fr) * 1995-10-19 1997-04-23 E.L.M. Leblanc Perfectionnement apportés à un brûleur de chauffe-eau, chauffe-bain, chaudière à gaz
FR2740202A1 (fr) * 1995-10-19 1997-04-25 Leblanc Sa E L M Perfectionnements apportes a un bruleur de chauffe-eau, chauffe-bain, chaudiere a gaz
CN103185339A (zh) * 2011-12-28 2013-07-03 株式会社能率 浓淡火焰燃烧器及燃烧装置
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
EP3299716A1 (fr) * 2016-09-26 2018-03-28 Grand Mate Co., Ltd. Brûleur pour appareil à gaz
CN109751598A (zh) * 2019-03-14 2019-05-14 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

Also Published As

Publication number Publication date
ES2098718T3 (es) 1997-05-01
DE69307816T2 (de) 1997-05-28
DE69307816D1 (de) 1997-03-13
ITMI922203A1 (it) 1994-03-24
EP0589852B1 (fr) 1997-01-29
ITMI922203A0 (it) 1992-09-24
IT1256149B (it) 1995-11-29
ATE148548T1 (de) 1997-02-15

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