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EP0781391B1 - Bruleur a premelange a gaz - Google Patents

Bruleur a premelange a gaz Download PDF

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Publication number
EP0781391B1
EP0781391B1 EP96927014A EP96927014A EP0781391B1 EP 0781391 B1 EP0781391 B1 EP 0781391B1 EP 96927014 A EP96927014 A EP 96927014A EP 96927014 A EP96927014 A EP 96927014A EP 0781391 B1 EP0781391 B1 EP 0781391B1
Authority
EP
European Patent Office
Prior art keywords
wire mesh
gas
ignition burner
burner
mesh
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
EP96927014A
Other languages
German (de)
English (en)
Other versions
EP0781391A1 (fr
Inventor
Hugo Groenemans
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.)
Garrett Motion SARL
Original Assignee
Honeywell 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 Honeywell BV filed Critical Honeywell BV
Publication of EP0781391A1 publication Critical patent/EP0781391A1/fr
Application granted granted Critical
Publication of EP0781391B1 publication Critical patent/EP0781391B1/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
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q9/00—Pilot flame igniters
    • F23Q9/02—Pilot flame igniters without interlock with main fuel supply
    • F23Q9/04—Pilot flame igniters without interlock with main fuel supply for upright burners, e.g. gas-cooker burners

Definitions

  • the invention relates to a premix gas pilot burner with a downstream of Gas inlet arranged air inlet and a mixture outlet opening, which a Flame sensor electrode faces.
  • Gas pilot burners are in numerous Embodiments known, e.g. from DE-GM 1 870 006, 1 897 906, 69 39 679, 69 47 963, 70 37 072, 72 18 018 and 74 01 561.
  • Gas premix burners according to the preamble of claim 1 are from DE-GM 70 37 072 and DE-AS 10 09 126 known.
  • the wire grids have one over their entire extent constant mesh size.
  • DE-AS 10 09 126 is the outlet opening of the The apex area of the wire mesh opposite the gas pipe is covered by a disk.
  • a gas burner for gases with low ignition speed is known from DE-AS 11 84 713, in which the burner plate placed on the burner head consists of a gas-permeable Material and is formed in such a thickness that around the central gas passage opening for the main flame around gas under significantly reduced pressure through the Burner plate can pass through. It forms a wreath surrounding the main flame small holding flames.
  • a similar construction shows DE-GM 69 39 679, where a Flow channel for the main outlet opening of the gas behind the inlet nozzle of the gas is arranged in the mixing room so that this flow channel predominantly with pure Fuel gas is fed.
  • the burner plate surrounding this main flow channel is included a large number of small gas passage openings surrounding the main outlet opening provided, which create a ring of small ionization flames in which the Sensor electrode of an ionization flame sensor immersed.
  • the invention aims to provide a premix gas pilot burner that is inexpensive is producible and creates a stable flame even with fluctuating gas pressure.
  • a dome or Paraboloidal wire mesh can be easily formed by deforming a flat one Create wire mesh with a constant mesh size over a mandrel. You can do it in one attach the burner mouth with a screw-on or clip-on sleeve.
  • Such Production of the wire mesh has the advantage that the mesh size of the mesh in Vertex area of the curvature is larger than in the edge areas of the arched Wire mesh.
  • the grid creates a larger ground area for one on the Flame ionization principle working flame sensor and thus a stronger one Flame current.
  • the counter electrode faces the mixture outlet opening and can may also be used as an ignition electrode if necessary. In another embodiment a separate ignition electrode is directed laterally onto the curved wire mesh. Beneficial Embodiments of the invention result from the subclaims.
  • a pilot burner 2 of substantially cylindrical Shape As well as a flame sensor electrode 3 and an ignition electrode 4, which are electrically insulated from the carrier 1.
  • Gas is the pilot burner 2 via a axial gas supply line 5 is supplied, while combustion air radially through a dirt filter 6 is sucked in.
  • a nozzle for Flow acceleration within the hexagon socket 7 there is a nozzle for Flow acceleration, as is known per se.
  • Above the burner mouthpiece 8 arches a wire mesh 9, which has the shape of a dome or approximately one Has paraboloids. It is made of a flat wire mesh with a constant mesh size, by this over a suitably shaped mandrel to its dome shape is deformed. At the same time, the mesh size in the apex region 10 of the grid larger than in its edge area 11.
  • the wire mesh thus deformed is moved from one to the Outlet opening of the burner tube 2 screwed or by a snap connection attached sleeve 8 held.
  • the Flame sensor electrode 3 when starting the burner as an ignition electrode for formation serve the spark.
  • the ground area enlarged by the grid 9 leads to a increased ionization current between the burner 2 and sensor electrode 3, whereby the Operation of the flame sensor is improved.
  • the new pilot burner stands out from low manufacturing costs, because many of the known pilot burners required additional lateral outlet openings are eliminated and it automatically manufacturable turned parts is assembled and also assembled automatically can be.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Combustion (AREA)
  • Gas Burners (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)

Claims (3)

  1. Brûleur de veilleuse à gaz prémélangé comportant:
    a) une entrée d'air (6), disposée en aval de l'entrée de gaz (5), ainsi que
    b) une ouverture de sortie (8) pour le mélange, qui est coiffée d'une grille métallique (9) bombée sous forme d'une coupelle et en face de laquelle est placée une électrode de détecteur de flamme (3),
       caractérisé en ce que
    c) le bombement de la grille métallique (9) est produit par déformation d'une grille métallique plane d'ouverture de maille constante, de sorte que
    d) l'ouverture de maille de la grille métallique (9) dans la région du sommet (10) du bombement en forme de coupelle est nettement plus grande que dans les régions de bord (11) de la grille métallique (9).
  2. Brûleur selon la revendication 1, caractérisé en ce qu'une électrode d'allumage séparée (4) est dirigée latéralement vers la grille métallique bombée (9).
  3. Brûleur selon la revendication 1 ou 2, caractérisé en ce qu'une buse est disposée dans le trajet du gaz, entre l'entrée de gaz (5) et l'entrée d'air (6).
EP96927014A 1995-07-25 1996-07-16 Bruleur a premelange a gaz Expired - Lifetime EP0781391B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19527075A DE19527075C1 (de) 1995-07-25 1995-07-25 Vormisch-Gaszündbrenner
DE19527075 1995-07-25
PCT/EP1996/003115 WO1997005426A1 (fr) 1995-07-25 1996-07-16 Bruleur a premelange a gaz

Publications (2)

Publication Number Publication Date
EP0781391A1 EP0781391A1 (fr) 1997-07-02
EP0781391B1 true EP0781391B1 (fr) 1999-04-14

Family

ID=7767691

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96927014A Expired - Lifetime EP0781391B1 (fr) 1995-07-25 1996-07-16 Bruleur a premelange a gaz

Country Status (7)

Country Link
EP (1) EP0781391B1 (fr)
CZ (1) CZ6218U1 (fr)
DE (2) DE19527075C1 (fr)
HU (2) HUP9702446A2 (fr)
PL (1) PL58566Y1 (fr)
SK (1) SK2134U (fr)
WO (1) WO1997005426A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19811987A1 (de) * 1998-03-19 1999-09-23 Rauschert Gmbh & Co Kg Paul Zündbrenner
CN103363555B (zh) * 2012-04-01 2016-08-03 宁波市比利仕燃器科技有限公司 用于燃气具安全防护的低干扰点火装置
US11506381B2 (en) * 2020-05-15 2022-11-22 Zeeco, Inc. Plug-resistant burner tip and method
US11466854B2 (en) * 2021-02-05 2022-10-11 The Marley Company Llc Spark ignition pilot assembly

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7037072U (de) * 1900-01-01 Junkers & Co Gmbh Vorrichtung zum Anzünden und Über wachen von gasbeheizten Geraten
DE1009126B (de) * 1952-05-03 1957-05-29 Vaillant Joh Kg Zuendbrenner fuer Gase geringer Zuendgeschwindigkeit, insbesondere Fluessiggase
DE1897906U (de) * 1962-03-17 1964-08-06 Danfoss As Gasbrenner, insbesondere zuendbrenner.
DE1184713B (de) * 1963-02-04 1965-01-07 Junkers & Co Gasbrenner, insbesondere fuer Gase mit geringer Zuendgeschwindigkeit
DE1870006U (de) * 1963-02-08 1963-04-11 Junkers & Co Zuendbrenner fuer gasbeheizte geraete.
FR1455790A (fr) * 1964-08-20 1966-05-20 Quercia Flaminaire Sa Perfectionnements apportés aux brûleurs à gaz
CH475518A (de) * 1968-12-10 1969-07-15 Landis & Gyr Ag Pilotbrenner
US3528754A (en) * 1968-12-16 1970-09-15 Honeywell Inc Pilot burner
FR2082195A5 (fr) * 1970-03-06 1971-12-10 Saunier Duval
NL7206449A (fr) * 1971-05-13 1972-11-15
FR2214865A1 (fr) * 1973-01-18 1974-08-19 Italiana Tecnomeccanica Precis
DE2819075A1 (de) * 1978-04-29 1979-10-31 Dungs Karl Gmbh & Co Atmosphaerischer zuend-gasbrenner
JPS57172106A (en) * 1981-04-16 1982-10-22 Jii S Seisakusho:Kk Gas burner

Also Published As

Publication number Publication date
HU9800043V0 (en) 1998-04-28
PL106385U1 (en) 1997-08-04
SK2134U (sk) 1999-05-07
DE59601657D1 (de) 1999-05-20
PL58566Y1 (en) 2001-04-30
DE19527075C1 (de) 1996-08-14
HUP9702446A2 (en) 1998-03-30
HU1606U (en) 1999-09-28
CZ6218U1 (cs) 1997-06-24
WO1997005426A1 (fr) 1997-02-13
EP0781391A1 (fr) 1997-07-02

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