EP1538395A9 - Tête de brûleur pour un brûleur à prémélange - Google Patents

Tête de brûleur pour un brûleur à prémélange Download PDF

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Publication number
EP1538395A9
EP1538395A9 EP03425786A EP03425786A EP1538395A9 EP 1538395 A9 EP1538395 A9 EP 1538395A9 EP 03425786 A EP03425786 A EP 03425786A EP 03425786 A EP03425786 A EP 03425786A EP 1538395 A9 EP1538395 A9 EP 1538395A9
Authority
EP
European Patent Office
Prior art keywords
combustion head
combustion
partition
main body
head
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.)
Withdrawn
Application number
EP03425786A
Other languages
German (de)
English (en)
Other versions
EP1538395A1 (fr
Inventor
Andrea Lonardi
Andrea Lovato
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.)
Riello SpA
Original Assignee
Riello 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 Riello SpA filed Critical Riello SpA
Priority to EP03425786A priority Critical patent/EP1538395A1/fr
Publication of EP1538395A1 publication Critical patent/EP1538395A1/fr
Publication of EP1538395A9 publication Critical patent/EP1538395A9/fr
Withdrawn legal-status Critical Current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
    • F23D14/70—Baffles or like flow-disturbing devices
    • 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
    • F23D14/105—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 with injector axis parallel to the burner head axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2203/00—Gaseous fuel burners
    • F23D2203/10—Flame diffusing means
    • F23D2203/101—Flame diffusing means characterised by surface shape
    • F23D2203/1012—Flame diffusing means characterised by surface shape tubular
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2203/00—Gaseous fuel burners
    • F23D2203/10—Flame diffusing means
    • F23D2203/102—Flame diffusing means using perforated plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2210/00—Noise abatement
    • 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 a premix burner combustion head.
  • premix burners are used, which are characterized by premixing fuel gas and combustion air upstream from the combustion region.
  • the combustion head of this type of burner normally comprises a cylindrical tubular structure, in turn comprising a number of mixture outflow openings; and the fuel gas/combustion air mixture is ignited just outside the tubular structure.
  • premix burners permit extensive combustion power adjustment, and have a surface flame distribution enabling a reduction in the size of the combustion chamber.
  • the result is an extremely annoying noise to the user.
  • a combustion head 10 comprises a perforated cylinder 11 inside which is inserted a concentric, smaller-diameter cylinder 12 connected integrally to cylinder 11 at one end 12a.
  • the gas/air mixture flows into cylinder 12 in a direction, indicated by arrow F1, parallel to the longitudinal axis (a) of symmetry of cylinders 11 and 12.
  • the gas/air mixture After flowing along the whole length of inner cylinder 12, the gas/air mixture inverts direction and flows, in the direction indicated by arrow F2, into a region 13 defined between cylinders 11 and 12.
  • the gas/air mixture flows immediately out through the holes in cylinder 11, and is ignited in a region 14 outside cylinder 11.
  • the end 11a of cylinder 11 is closed by a plate 15, possibly with holes (not shown).
  • a second embodiment also forming part of the state of the art and shown in Figure 2, provides for a second type of combustion head 20.
  • Figure 2a shows an enlarged detail of Figure 2.
  • Combustion head 20 comprises a perforated outer cylinder 21 having a longitudinal axis (b) of symmetry.
  • Cylinder 21 houses a second perforated cylinder 22 coaxial with cylinder 21 with respect to axis (b), and both cylinders 21, 22 are closed at respective distal ends 21a, 22a by a plate 23.
  • Figures 3 to 6 show a combustion head 100 comprising a cylindrical body 101 having a number of holes 102 formed in at least one surface portion of cylindrical body 101.
  • holes (or openings) 102 are formed in the distal portion of cylindrical body 101 with respect to inflow of the gas/air mixture, which flows into cylindrical body 101 in the direction indicated by arrow F5.
  • Cylindrical body 101 is symmetrical with respect to a longitudinal axis (c).
  • the distal end 103 of combustion head 100 may be provided with a cover plate 103a, possibly also having a number of holes (not shown).
  • the gas/air mixture flows out through holes 102 in known manner, and, in a region 104 facing the outer surface of cylindrical body 101, is ignited by an ignition device not shown.
  • the flames (not shown in Figures 3 to 6) are therefore formed in region 104, as of the outer surface of cylindrical body 101.
  • Figures 3 to 6 show a first embodiment employing two perpendicular partitions 105a, 105b, both extending through the longitudinal axis (c) of symmetry of cylindrical body 101.
  • Partitions 105 may be of various length and thickness, may be made of various materials, and may be variously positioned inside cylindrical body 101.
  • partitions 105 divide the inner space 106 defined by cylindrical body 101 into a number of, in this case, equal longitudinal sectors 106a, 106b, 106c, 106d.
  • the sectors into which inner space 106 is divided may differ in size.
  • Partitions with a curved cross section may be used to advantage.
  • cylindrical body 101 also apply to an other than cylindrical, e.g. square- or rectangular-section body.
  • At least one partition may lie parallel to and a given distance from the central axis (c) of symmetry.
  • two partitions 205a, 205b are positioned parallel to the central axis (c) of symmetry.
  • a third partition (not shown) is interposed between partitions 205a, 205b of the second embodiment in Figures 7 to 10, extends through axis (c), and is perpendicular to partitions 205a, 205b, thus forming four sectors (not shown).
  • Partitions 105a, 105b and partitions 205a, 205b may be the same length as or shorter than cylindrical body 101, but advantageously extend along the whole length of the portion in which holes 102 are formed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
EP03425786A 2003-12-05 2003-12-05 Tête de brûleur pour un brûleur à prémélange Withdrawn EP1538395A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP03425786A EP1538395A1 (fr) 2003-12-05 2003-12-05 Tête de brûleur pour un brûleur à prémélange

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03425786A EP1538395A1 (fr) 2003-12-05 2003-12-05 Tête de brûleur pour un brûleur à prémélange

Publications (2)

Publication Number Publication Date
EP1538395A1 EP1538395A1 (fr) 2005-06-08
EP1538395A9 true EP1538395A9 (fr) 2005-10-26

Family

ID=34443174

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03425786A Withdrawn EP1538395A1 (fr) 2003-12-05 2003-12-05 Tête de brûleur pour un brûleur à prémélange

Country Status (1)

Country Link
EP (1) EP1538395A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20071751A1 (it) 2007-09-12 2009-03-13 Polidoro S P A Bruciatore premiscelato
DE102007048795A1 (de) 2007-10-10 2009-04-16 Viessmann Werke Gmbh & Co Kg Brenner
FR2925657B1 (fr) 2007-12-19 2010-01-29 Mer Joseph Le Dispositif et procede pour stabiliser la pression et le debit d'un melange gazeux alimentant un bruleur cylindrique a combustion de surface
ITMO20080069A1 (it) * 2008-03-10 2009-09-11 Worgas Bruciatori Srl Bruciatore dotato di mezzi di riduzione del rumore
FI122306B (fi) * 2009-12-11 2011-11-30 Outotec Oyj Järjestely suspensiosulatusuunin rikastepolttimen jauhemaisen kiintoaineen syötön tasaamiseksi
ITPD20120282A1 (it) 2012-09-27 2014-03-28 Systema Polska Sp Zo O Testa di combustione a gas per bruciatori premiscelati
US10767900B2 (en) 2015-05-14 2020-09-08 Lochinvar, Llc Burner with flow distribution member
CN106765095A (zh) * 2017-03-23 2017-05-31 上海钜荷热力技术有限公司 多段式全预混燃烧器
EP3431872A1 (fr) * 2017-07-17 2019-01-23 Bekaert Combustion Technology B.V. Brûleur de gaz pré-mélangé
WO2024208984A1 (fr) 2023-04-07 2024-10-10 Bekaert Combustion Technology B.V. Brûleur à gaz de prémélange pour la combustion d'un gaz de prémélange contenant de l'hydrogène ayant un élément d'insertion

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATA17289A (de) * 1989-01-30 1993-09-15 Vaillant Gmbh Atmosphärischer vormisch-gasbrenner
DE4318955A1 (de) * 1992-05-29 1993-12-02 Vaillant Joh Gmbh & Co Brennerstab
DE4331231A1 (de) * 1993-09-15 1995-03-16 Fev Motorentech Gmbh & Co Kg Verfahren zur Regulierung der Flammengüte eines atmosphärischen Gasbrenners und Gasbrenner zur Durchführung des Verfahrens
DE29710270U1 (de) * 1996-06-11 1997-08-14 Joh. Vaillant Gmbh U. Co, 42859 Remscheid Vollvormischender atmosphärischer Strahlungsbrenner
IT1294552B1 (it) * 1997-07-07 1999-04-12 Worgas Bruciatori Srl Metodo per ridurre le emissioni di co e no2 negli apparecchi da riscaldamento, e apparecchi relativi.

Also Published As

Publication number Publication date
EP1538395A1 (fr) 2005-06-08

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