EP0323502B1 - Gasbrenner, insbesondere für heizgerät. - Google Patents

Gasbrenner, insbesondere für heizgerät. Download PDF

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Publication number
EP0323502B1
EP0323502B1 EP88905895A EP88905895A EP0323502B1 EP 0323502 B1 EP0323502 B1 EP 0323502B1 EP 88905895 A EP88905895 A EP 88905895A EP 88905895 A EP88905895 A EP 88905895A EP 0323502 B1 EP0323502 B1 EP 0323502B1
Authority
EP
European Patent Office
Prior art keywords
gas
orifices
box
conduit
rim
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
EP88905895A
Other languages
English (en)
French (fr)
Other versions
EP0323502A1 (de
Inventor
Albert Drapier
Gérard GAUTHIER
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.)
INDUSTRIELLE AUER Ste
Original Assignee
INDUSTRIELLE AUER Ste
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 INDUSTRIELLE AUER Ste filed Critical INDUSTRIELLE AUER Ste
Priority to AT88905895T priority Critical patent/ATE80933T1/de
Publication of EP0323502A1 publication Critical patent/EP0323502A1/de
Application granted granted Critical
Publication of EP0323502B1 publication Critical patent/EP0323502B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/002—Stoves
    • F24C3/006—Stoves simulating flames

Definitions

  • the present invention relates generally to a device forming a gas burner, in particular for a heating appliance in which the combustion of gas takes place around non-combustible elements having the appearance of logs for example, of the type comprising at least one gas pipe pierced with orifices and placed inside an open box filled with a non-combustible material forming a diffusion bed for the gas before its combustion and on which the logs rest.
  • FR-A-2 420 091 (BERGER) recommends the provision at the base of the fireplace, along the gas rail, of a pipe for diffusing air under pressure.
  • BERGER BERGER
  • GB-A-2 147 994 provides for its part combination of a gas diffusion ramp or plate at the base of the fireplace with perforated air diffusion tubes; thus creating, within the gas diffusion bed, a primary air supply for combustion with directed supply of secondary air but only located in the center of the hearth where this combustion takes place.
  • the present invention relates to a device forming a gas burner with which it is possible to obtain an almost complete combustion of the gas and to limit as much as possible the formation of soot. This object is achieved with the device according to claim 1.
  • the device 1 forming a gas burner and as shown in Figures 1 and 2 comprises a hollow box 2 inside which is mounted at least one conduit 3 connected to an external supply device 4 in communication with a gas supply line 5.
  • the box 2 is of rectangular shape and has a bottom wall 8 delimited by four external side walls 9, which each extend, substantially at 90 °, by an external rim 10.
  • the box 2 also has a central part 11 constituted by a flat surface 12, substantially coplanar with the external flanges 10 and connected to the bottom wall 8 by four internal side walls 13.
  • the bottom wall 8, in its part delimited by the internal side walls 13, has an opening 8a.
  • the external 9 and internal 13 lateral walls of the box 2 delimit between themselves and with the bottom wall 8, the internal space 14 of the box 2.
  • the flanges 10 and the surface 12 of the box 2 are pierced with holes 16 for reasons which will be explained later.
  • two conduits 3 are mounted parallel to one another in the interior space 14 of the box 2, and respectively on either side of the central part 11 of the box 2 bordered by the internal side walls 13 .
  • Each conduit 3 is constituted by a tubular cylindrical envelope, with a diameter of the order of 30 mm for example, closed at one end and the other end of which is in communication with a supply device 4.
  • Each duct is provided with orifices 17, which are advantageously located opposite the bottom wall 8 of the box 2.
  • the supply device 4 associated with each duct 3 is in the form of a cylindrical enclosure 20 closed at one end by a wall 21 open at the other end and delimiting an interior chamber 22.
  • the inlet pipe 5 of gas penetrates, sealingly, inside the chamber 22 through the wall 21, and is equipped at its end with a nozzle 23.
  • the enclosure 20 is pierced with orifices 24 to put the chamber 22 into communication with the external environment.
  • the enclosure 20 has its open end bordered by a flange fixed around an opening 25 provided in the corresponding external side wall 9, so that the chamber 22 and in particular the nozzle 23 are substantially axially aligned with the duct 3 associated.
  • the supply device is supplemented by a mixing device which is constituted in this example by a venturi tube 18 mounted inside the conduit 3, the inlet of the tube 18 coming substantially at the open end of the conduit 3 for form the entrance to it.
  • the tube 18 extends inside the conduit 3 over a length which is of the order of a quarter of the length of the conduit 3.
  • the interior space 14 of the box 2 is filled with a non-combustible material 25, such as vermiculite which is in the form of granules.
  • This non-combustible material is also deposited on the edges 10 of the central part 11 of the box 2.
  • FIG. 3 An application of the device 1 forming a burner as described above, is shown schematically in FIG. 3 where the device is mounted inside the hearth of a fireplace 30 with a closed hearth to constitute a heating appliance.
  • An enclosure 31 embedded in the hearth of the chimney 30 comprises a bottom wall 32, two side walls (not shown), a front wall 33 fitted with a translucent closing door 34, a rear wall 35 and an upper wall 36.
  • Upper openings or openings 37 and lower openings 38 are provided on the front wall 32 respectively. 'other of the door 35.
  • a heat exchanger E is mounted inside the enclosure 31 and towards the upper part thereof. The exchanger E communicates, on the one hand, with the outside by the gills 37 and, on the other hand, by openings 39 and by an opening 40 provided in the upper wall 35 of the enclosure 31, with a conduit chimney 41.
  • the device 1 forming a burner is mounted inside the enclosure 31 and rests, for example, on supports 45 provided for this purpose on the lower wall 31, so that air coming from the lower vents 38 can penetrate inside the central part 11 of the box 2.
  • Logs 50 of a non-combustible material are suitably arranged on the non-combustible material 25 which fills the box 2 and which forms a diffusion bed.
  • the pressurized gas coming from each pipe 5 leaves the nozzle 23 and enters the chamber 22 of the associated supply device 4.
  • the pressure of the gas drives the air or primary air present in the chamber 22 and coming from the outside through the orifices 24, inside the venturi tube 18 where the primary gas-air mixture takes place.
  • This mixture then propagates inside each conduit 3, is ejected through the orifices 17 of the conduits 3 and diffuses inside the diffusion bed 25.
  • the primary gas-air mixture combines with the air or secondary air injected into the diffusion bed through the orifices 16 provided in the flanges 10 and in the central part 11 of the box 2.
  • the mixture which escapes above the diffusion bed 25 is ignited and burns around the logs 50. It is then found that the resulting flames have a predominantly blue color, which indicates an almost complete combustion of the gas or combustion called hygienic by gas specialists, in particular thanks to the secondary air injected into the diffusion bed 25.
  • the thickness of the non-combustible material 25 located on the flanges 10 and the central part 11 of the box 2 can be adjusted to adjust the supply of secondary air.
  • the quantity of gas admitted into each supply device 4 is itself adjustable by means of a valve, not shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Solid-Fuel Combustion (AREA)
  • Spray-Type Burners (AREA)
  • Incineration Of Waste (AREA)
  • Gas Burners (AREA)

Claims (4)

  1. Gasbrenner, insbesondere für ein Heizgerät, wobei sich die Verbrennung des Gases um nicht brennbare Elemente abspielt, welche beispielsweise das Aussehen von Holzscheiten haben, mit folgenden Merkmalen: mindestens eine Gasleitung (3) ist mit feinen Bohrungen (17) versehen und im Inneren eines offenen Kastens angeordnet, der mit einem nicht brennbaren Material gefüllt ist, das ein Diffusionsbett für das Gas bildet und von einer Mischung aus Gas und primärer Luft sowie von sekundärer Luft beschickt wird;
    die Gasleitung ist so ausgebildet, das Gemisch aus Gas und primärer Luft zum Boden des Diffusionsbettes zu richten; eine Mehrzahl von Verteilungsöffnungen der Sekundärluft sind oberhalb des Diffusionsbettes untergebracht,
    dadurch gekennzeichnet,
    daß der Kasten (2) einerseits auf seinem Umfang eine Randleiste (10) aufweist, an der das Diffusionsbett (25) aus nicht brennbarem und den Kasten (2) auffüllendem Material angrenzt, und andererseits ein mittiges Teil (11) aufweist, das sich von seiner Bodenwand (8) aus mit seiner Öffnung (8a) erhebt und dessen oberer Teil (12) ziemlich eben und in gleicher Ebene wie die Randleiste (10) angeordnet ist und ebenfalls mit dem nicht brennbarem Material bedeckt ist, und
    daß die Randleiste und der obere zentrale Teil (12) mit Sekundärluft-Zuführungsöffnungen (16) durchbohrt sind, um an allen Stellen inmitten dieses Bettes und um seinen Umfang eine quasi vollständige Verbrennung zu verwirklichen.
  2. Vorrichtung nach Anspruch 1,
    dadurch gekennzeichnet,
    daß die feinen Öffnungen (17) jeder Leitung (3) ungefähr im Hinblick auf die Bodenwand (8) des Kastens (2) angeordnet sind.
  3. Vorrichtung nach Anspruch 1 oder 2 und ausgerüstet mit einer Zuführvorrichtung (4), die eine Düse (23) aufweist, welche im Inneren einer Kammer (22) angebracht ist, welche mit dem äußeren über Öffnungen (24) in Verbindung steht, die jeweils einen Primärluftzutritt bilden,
    dadurch gekennzeichnet,
    daß die Kammer (22) mit der Leitung (3) über eine Mischeinrichtung in Verbindung steht, die durch ein Venturi-Rohr (18) gebildet wird, das im Inneren der Leitung (3) montiert ist.
  4. Vorrichtung nach einem der Ansprüche 1 bis 3,
    dadurch gekennzeichnet,
    daß die Primärluft und die Sekundärluft dem äußeren Umgebungsmilieu entnommen sind.
EP88905895A 1987-07-01 1988-07-01 Gasbrenner, insbesondere für heizgerät. Expired - Lifetime EP0323502B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88905895T ATE80933T1 (de) 1987-07-01 1988-07-01 Gasbrenner, insbesondere fuer heizgeraet.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8709317 1987-07-01
FR8709317A FR2617576B1 (fr) 1987-07-01 1987-07-01 Dispositif formant bruleur a gaz, notamment pour appareil de chauffage

Publications (2)

Publication Number Publication Date
EP0323502A1 EP0323502A1 (de) 1989-07-12
EP0323502B1 true EP0323502B1 (de) 1992-09-23

Family

ID=9352748

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88905895A Expired - Lifetime EP0323502B1 (de) 1987-07-01 1988-07-01 Gasbrenner, insbesondere für heizgerät.

Country Status (5)

Country Link
EP (1) EP0323502B1 (de)
AT (1) ATE80933T1 (de)
DE (1) DE3874871D1 (de)
FR (1) FR2617576B1 (de)
WO (1) WO1989000267A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1337472C (en) * 1989-01-23 1995-10-31 Le Baigue & Co. Ltd. Domestic gas fires
GB8905011D0 (en) * 1989-03-04 1989-04-19 Thurlow Alan Gas fire
US6769906B1 (en) * 2002-08-08 2004-08-03 James E. Grove Fire effect appliance
DE10358791A1 (de) * 2003-12-12 2005-08-04 Carl Freudenberg Kg Kombiniertes Sensor- und Heizelement
DE10358793A1 (de) * 2003-12-12 2005-08-04 Carl Freudenberg Kg Kombiniertes Sensor- und Heizelement

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1173819A (en) * 1967-05-26 1969-12-10 Jack Irvine Imitation Solid Fuel Fire
GB1541423A (en) * 1975-07-03 1979-02-28 Mitchell D A Gas fire
BE856759R (fr) * 1977-07-12 1977-10-31 Berger Jules Feu ouvert a recuperation
BE864897R (fr) * 1978-03-14 1978-07-03 Berger Jules Feu ouvert a recuperation
GB2147994A (en) * 1983-09-12 1985-05-22 Thomas Raymond Collier Gas fire

Also Published As

Publication number Publication date
ATE80933T1 (de) 1992-10-15
WO1989000267A1 (fr) 1989-01-12
FR2617576B1 (fr) 1991-04-12
EP0323502A1 (de) 1989-07-12
DE3874871D1 (de) 1992-10-29
FR2617576A1 (fr) 1989-01-06

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