EP2473784B1 - Dispositif brûleur à gaz et foyer de cuisson à gaz - Google Patents

Dispositif brûleur à gaz et foyer de cuisson à gaz Download PDF

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Publication number
EP2473784B1
EP2473784B1 EP10744940.7A EP10744940A EP2473784B1 EP 2473784 B1 EP2473784 B1 EP 2473784B1 EP 10744940 A EP10744940 A EP 10744940A EP 2473784 B1 EP2473784 B1 EP 2473784B1
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EP
European Patent Office
Prior art keywords
gas
outflow
gas burner
circumferential
facility
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Active
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EP10744940.7A
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German (de)
English (en)
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EP2473784A1 (fr
Inventor
Christophe Cadeau
Alexander Eisenberg
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BSH Hausgeraete GmbH
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BSH Hausgeraete GmbH
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Priority to EP10744940.7A priority Critical patent/EP2473784B1/fr
Publication of EP2473784A1 publication Critical patent/EP2473784A1/fr
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Publication of EP2473784B1 publication Critical patent/EP2473784B1/fr
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    • 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
    • F23D14/06—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 radial outlets at the burner head
    • 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
    • F23D2900/14—Special features of gas burners
    • F23D2900/14062—Special features of gas burners for cooking ranges having multiple flame rings

Definitions

  • the present invention relates to a gas burner device, for example for use with cooking utensils for cooking food. Furthermore, the invention relates to a gas hob with a gas burner device. Such a gas burner device and gas hob are off EP1469256 A2 known.
  • a gas burner device is provided with at least one inner ring and one outer ring around a reference point.
  • Circumferential portions of the rings provided Gasausströmö réelleen for a given Ausströmrate the respective peripheral portion.
  • the peripheral sections are assigned to angular ranges around the reference point. The discharge rates of adjacent peripheral portions of each ring are different.
  • outflow rates of the same angular range associated peripheral portions of the rings can be set differently.
  • an inner and an outer ring with gas outflow openings arranged on the respective circumferential line are provided, which are set up for predetermined outflow rates.
  • the outflow rate is related to a respective total gas outlet in a circumferential section, for example also by means of a plurality of gas outflow openings.
  • a Gasausströmrate is measured in volume flow per time, for example in liters of gas per hour.
  • the outflow rate then corresponds directly to a burning power, which depends among other things on the gas used. For example, 100 l of natural gas per hour equals approximately 1050 watts of burning power.
  • the gas outlets of an inner ring or flame ring are designed such that the burner capacity in the inner region is possible as high as in the dimensions given by the physical physics, e.g. for a 6kW burner, preferably 1kW in the inner region as e.g. only 500W. Investigations by the Applicant have shown, however, that under certain circumstances it is favorable to keep the burner output in the inner region lower than possible from a physical point of view, eg. rather 500W than 1000W in the example just mentioned.
  • the exhaust gases of the combustion process in the inner flame ring disturb the flames of the outer flame ring. It can be assumed that the exhaust gases of the inner flame ring form an insulating layer between the cookware and the outer flame ring, which ultimately leads to a lower efficiency. In addition, the exhaust gas flow of the internal combustion process also disturbs the outer flames.
  • the gas outflow openings can be arranged, for example, in such a way that there are alternating circumferential sections with a high outflow rate and a low outflow rate on a respective circumferential line. It then results in sections of larger and smaller flames along the circumference, such as the inner and outer ring.
  • the gas outflow openings can be arranged or configured in such a way that at circumferential sections, which are assigned to the same angular area, radially adjacent circumferential sections alternately have a high outflow rate and a low outflow rate. It is therefore conceivable that both in the tangential direction along the respective flame crown, as well as in the radial direction, starting from the inner, for example, concentric reference point, always a sequence of larger and smaller flames arise.
  • the gas outflow openings are designed exclusively pointing radially from the reference point in the same direction. Along a radius, the flames only burn outward. Flames pointing inwards are not intended.
  • a circular disk is provided as an inner ring, and the outer ring is arranged concentrically with the circular disk.
  • other geometries are conceivable, such as oval or angular arrangements for the rings and / or Gasausströmö réelleen. It can be discussed in each case on the requirements, for example, by the cookware or the installation conditions for the gas burner devices.
  • the gas burner device can be equipped with retaining flame or support flame outlet openings.
  • retaining flame or support flame outlet openings In order to obtain a stable flame even with a particularly high gas flow through the outflow openings, smaller holding or support flame openings can be provided between two gas outflow openings. This also improves the burning behavior of the gas.
  • gas outflow openings with a first cross section, for example for large flames or large outflow rates, and gas outflow openings with a second (smaller) cross section, for example for small flames or low outflow rates.
  • the gas inflow to the outflow openings is set such that the outflow rates of the circumferential sections of the inner ring along a circumferential line alternately correspond to a first combustion output and a second combustion output, and the outflow rates of the peripheral sections of the outer ring alternate along a circumferential line correspond to another first burning power and another second burning power.
  • circumferential sections with alternately high (first) and low (second) combustion powers result, the high and low burning power relative to each other being related to the inner ring.
  • peripheral portions having alternately high (first) and low (second) burning powers are provided along the peripheral line of the outer ring.
  • a peripheral portion of the outer ring in comparison to the adjacent peripheral portions of the outer ring has a low burning power, compared to the same angular portion associated with the peripheral portion of the inner ring has a higher burning power. And in turn, the adjacent peripheral portions of the adjacent angular regions in the inner ring have a further low burning power. Relative indications of how high or low are related to the rings.
  • the firing powers of the circumferential sections are then set such that in each case a first (high) burning power of the respective inner circumferential section is radially adjacent to an outer peripheral section with a further second (low) burning power.
  • the adjacent peripheral portions of the inner ring then have a second (high) burning power, and each of the same angular range associated outer peripheral portions have a further first (high) burning power.
  • high and low burn rates are related to peripheral portions of the respective ring.
  • the angle ranges comprise in a preferred embodiment of the gas burner device at least 30 °. In an alternative embodiment, the angular ranges are all the same size. Preferably, the angular distance between two gas outlets of a circumferential line is set at least 6 °. For setting the respective outflow rate for the peripheral portions on a common circumferential line, adjacent peripheral portions on the same circumferential line may have different numbers of gas outlets.
  • At least one further outer ring with peripheral sections and gas outlet openings is provided. It can thus be formed, for example, three or four flame rings to heat a particularly large pot surface.
  • the gas burner device with a control device which controls a gas supply to the gas outflow ports such that the burner outputs from adjacent peripheral portions of a respective ring are different, and the burner performance of the same angular range associated peripheral portions of the rings are different.
  • the gas burner device In a particularly preferred embodiment of the gas burner device exclusively two concentric flame rings or rings are provided which have outwardly facing Gasausströmö réelleen and as described above have alternating sections with different outflow rates. In particular, only two different stages of outflow rates relative to the peripheral sections and rings are provided. Overall, the entire burning power and thus gas supply to the gas burner device can be changed depending on the operating state of the burner. The previous information on different outflow rates relate to the outflow rates of the peripheral sections relative to one another at a given combustion output of the total gas burner.
  • the invention comprises a gas hob or gas stove equipped with a gas burner device as described above.
  • FIG. 1 shows a schematic representation of a first embodiment of a gas burner device in plan view.
  • a gas burner or a gas burner device 1 is shown, that is, it is illustrated from the respective gas outlet openings burning gas flames.
  • It is a first flame ring formed by an inner ring 2, which is designed as a circular disk.
  • the center of this circular disc forms a reference point R.
  • the position of the reference point can in principle be chosen arbitrarily.
  • Concentrically around the inner disk or the inner ring 2, an outer ring 3 is arranged.
  • the inner peripheral portion 7 has a gas discharge port for a small flame 110.
  • the peripheral portion 6 has gas outflow openings 11 for large flames 111.
  • large flame gas outlets 111 are provided at the inner peripheral portion 8.
  • Gasausströmö réelleen 10 are provided for small flames 110.
  • outer openings are again provided for large flames 111 and inside an opening for a small flame 110.
  • inner peripheral portions 8 with a high burning power which are surrounded by inner peripheral portions 7, 9 with a lower burning power.
  • outer peripheral portions 5, 6 of high burning power each adjacent to adjacent outer peripheral portions 4 of low burning power.
  • Low or high burning power is to be understood relative to peripheral portions of a ring.
  • the outer ring 3 can perform 5kW at full firing, which is distributed over a total of 48 Gasausströmö réelleen 10, 11. Due to the size of the openings 10, 11, the burner output of the outer ring 3 is distributed over the different outflow rates of the circumferential sections 4, 5, 6. At the same time, with full firing, the inner ring can have a burner output of 700W distributed over 18 gas outlets 10, 11.
  • a possible ratio of total internal burning power and external burning power at low position, ie minimal fire, is for example 1300W outside and 300W inside.
  • the outflow openings 10, 11 in their outflow rate or burning power between minimum and maximum in the range 1: 4 to 1: 5 modulate.
  • the FIG. 2 schematically shows a perspective view of the gas burner device 1.
  • the inner ring 2 and the outer ring 3 is shown.
  • the Gasausströmö réelleen are formed by cuts in an inner rim 12 and an outer rim 13 on which the inner and outer ring 2, 3 rests.
  • You can use the FIG. 2 recognize that the gas burner device is constructed symmetrically with respect to a central axis A.
  • the inner wreath points, as in the FIG. 1 is shown in plan view, peripheral portions with first Gasausströmö réelleen 11, which lead to a higher Ausströmrate than the Gasausströmö Maschinenen 10 in the intermediate peripheral portions.
  • the outer wreath 13 also circumferential sections provided with large gas outflow openings 11 and small gas outflow openings 10.
  • the burner device 1 or the respective rim 12, 13 can be placed on a sleeve 14 through which the gas to be burned reaches the gas outflow openings 10, 11. It can be seen that the respective high or low outflow rate can be realized by the cross-sectional area of the respective gas outflow openings or holes 10, 11.
  • FIG. 3 is a schematic cross-sectional view of the gas burner device 1 is shown.
  • the inner ring 2 and the outer ring 3 which can be formed for example by a rotationally symmetrical profile with respect to the axis A.
  • the inner rim 12 and the outer rim 13 are respectively on the sleeve 14.
  • the Gasausströmö réelleen 10, 11 are in the cross-sectional view of FIG. 3 designed such that in the considered peripheral portion, the inner flame 110 is smaller than the outer flame 111.
  • the resulting from the combustion process exhaust E1 from the inner flame ring 110 flow at the bottom of the cookware 15, such as a pot, along radially outward. At the pot edge or outside the outer flame rim 111, the combustion products mix to the exhaust gas E2.
  • the inner flame 110 has a lower burning power, only a small amount of exhaust gases E1 pass from the inside to the outside and interfere only slightly with the burning process of the outer larger flame 111.
  • the relatively low proportion of combustion gases E1 is less insulating compared to the cookware 15 than conventional multi-flame burners, which usually operate the inner flame ring with the higher, and circumferentially evenly distributed power.
  • the respective inner flame is larger than the outer flame. That is, the outer small flame is less disturbed by the combustion products, so that an improved heat transfer can take place on the cookware.
  • the alternating or alternating provision of large flame and small flame sections with high outflow rates and small outflow rates provides a reliable and highly efficient burner architecture.
  • FIG. 4 is a schematic detail view of Gasausströmö réelleen, shown for example on the inner or outer burner ring. It is possible to improve combustion at particularly high outflow rates by using holding flames. For this, as it is in the FIG. 4 is shown, normal Gasaüsströmö réelleen 11 and provided therebetween particularly small Gasausströmö réelleen 16, which serve to form holding or support flames provided. The support flames prevent the flame from tearing off the gas opening and extinguishing it.
  • FIG. 5 is a schematic representation of a gas hob 17, which is equipped with a gas burner device 1, as previously described.
  • the gas hob 17 has a gas burner or a gas burner device 1, which has two concentric rings around the reference point R.
  • the thus defined peripheral portions on the inner ring and the outer ring are provided with gas outlets, which are not shown in detail.
  • the gas outflow openings are designed as described above in such a way that large and small flames, ie large or small outflow rates relative to the respective peripheral section, always arise alternately along a circumference.
  • an angular portion on the inner ring having a high outflow rate H and hence large flames 111 is shown and adjacent a small flame peripheral portion 110.
  • the adjacent outer peripheral portions associated with the respective same angular portions are small flue gas outlets 110 and large ones Flames 111 equipped.
  • the sectors or angular ranges at the peripheral portions are indicated by the symbols H for high or high outflow rates and L and low or small outflow rates.
  • H for high or high outflow rates
  • L low or small outflow rates.
  • H and L are not absolute, but, as in the following examples, in each case in comparison to outflow rates or firing rates for the same inner or outer Ring.
  • the angle range indicated by ⁇ has radially outward to outward flow rate sequence LH, where L is low with respect to the adjacent outflow rates of the inner peripheral portions, and H is high with respect to the adjacent outflow rates of the outer peripheral portions.
  • portions or portions having high and low outflow rates are always alternately provided along the circumferential lines, and along each radial direction, starting from the reference point R, there is provided either a sequence of HL or LH.
  • the cooking station is equipped with an operating element 18, for example a knob or knob, which controls a valve 21 or a regulating device which regulates the gas supply in such a way that a desired total burner output is achieved.
  • the different (high or low) outflow rates in the angular ranges or peripheral portions are to be understood relative to each other.
  • FIG. 6 a further schematic representation of an embodiment for a gas burner device is shown.
  • the same symbols have been used as with regard to FIG. 5 for the gas burner.
  • FIG. 7 shows a further embodiment of a gas burner device 19.
  • three concentrically arranged rings 2, 3, 20 are provided along the peripheries Gasausströmö réelleen are provided.
  • gas outflow openings for high outflow rates H and low outflow rates L are provided.
  • peripheral portions with high and low outflow rates occur alternately both along the circumferential lines and also radially. Radially, this results in sequences of large flames, small flames and large flames (HLH) or small flames, large flames and small flames (LHL).
  • FIG. 8 is a further embodiment of a gas burner device 1 is shown. Again, 45 degree angle ranges are provided and two rings, an inner ring and an outer ring. In addition to the sections with high and low outflow rates, further outflow rates M1 and M2 are provided. In this case, for example, L can indicate the lowest outflow rate, M1 the second lowest, M2 the second highest and H the highest outflow rate of the respective gas outflow openings. Also in the example of FIG. 8 each result in different Gasausströmraten at adjacent peripheral portions along the circumferential lines and radially from the inner ring.

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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 (15)

  1. Dispositif formant brûleur à gaz (1) avec un anneau intérieur (2) et un anneau extérieur (3) autour d'un point de référence (R), dans lequel, sur des sections périphériques (4 à 9) des anneaux (2, 3) auxquels sont associés des secteurs angulaires (α7 à α9) autour du point de référence (R), sont prévues des ouvertures d'écoulement de gaz (10, 11) pour un débit d'écoulement prédéterminé de la section périphérique (4 à 9) respective, les débits d'écoulement de sections périphériques (4, 5) voisines d'un anneau (2, 3) respectif étant différentes.
  2. Dispositif formant brûleur à gaz (1) selon la revendication 1, caractérisé en ce que les ouvertures d'écoulement de gaz (10, 11) sont agencées de telle manière que, sur une ligne périphérique (L2, L3) respective, des sections périphériques ayant un débit d'écoulement élevé (H) et un débit d'écoulement faible (L) sont présentes de manière alternée.
  3. Dispositif formant brûleur à gaz (1) selon la revendication 1 ou 2, caractérisé en ce que les ouvertures d'écoulement de gaz (10, 11) sont agencées de telle manière que, pour des sections périphériques (4, 8) auxquelles sont associés le même secteur angulaire (α8), des sections périphériques (4, 8) voisines en direction radiale présentent de manière alternée un débit d'écoulement élevé (H) et un débit d'écoulement faible (L).
  4. Dispositif formant brûleur à gaz (1) selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les ouvertures d'écoulement de gaz (10, 11) présentent la même orientation de manière exclusivement radiale à partir du point de référence (R).
  5. Dispositif formant brûleur à gaz (1) selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le dispositif formant brûleur à gaz (1) présente un disque circulaire (2) en tant qu'anneau intérieur et l'anneau extérieur (3) est agencé de manière concentrique par rapport au disque circulaire (2).
  6. Dispositif formant brûleur à gaz (1) selon l'une quelconque des revendications 1 à 5, caractérisé en ce que des ouvertures de sortie (16) de flammes pilote ou de flammes auxiliaires sont prévues au moins entre deux ouvertures d'écoulement de gaz (11).
  7. Dispositif formant brûleur à gaz (1) selon l'une quelconque des revendications 1 à 6, caractérisé en ce que, en vue d'un ajustement du débit d'écoulement respectif dans les sections périphériques (4 à 9), des ouvertures d'écoulement de gaz (10) avec un premier profil transversal et des ouvertures d'écoulement de gaz (11) avec un second profil transversal sont prévues.
  8. Dispositif formant brûleur à gaz (1) selon l'une quelconque des revendications 1 à 7, caractérisé en ce qu'au moins un des anneaux (2, 3) est réalisé polygonal, ovale ou circulaire.
  9. Dispositif formant brûleur à gaz (1) selon l'une quelconque des revendications 1 à 8, caractérisé en ce qu'un afflux de gaz est ajusté de telle manière que les débits d'écoulement des sections périphériques de l'anneau intérieur (2) le long d'une ligne périphérique (L1) correspondent tour à tour à une première puissance de cuisson (H) et à une seconde puissance de cuisson (L), et les débits d'écoulement des sections périphériques de l'anneau extérieur (3) le long d'une ligne périphérique (L2) correspondent tour à tour à une première puissance de cuisson (H) et à une seconde puissance de cuisson (L).
  10. Dispositif formant brûleur à gaz (1) selon l'une quelconque des revendications 1 à 9, caractérisé en ce que les secteurs angulaires (α7 à α8) couvrent au moins 30 degrés.
  11. Dispositif formant brûleur à gaz (1) selon l'une quelconque des revendications 1 à 10, caractérisé en ce que, en vue d'un ajustement du débit d'écoulement des sections périphériques (4 à 9), des sections périphériques voisines situées sur une ligne périphérique (L1, L2) commune présentent des nombres différents d'ouvertures d'écoulement de gaz (10, 11).
  12. Dispositif formant brûleur à gaz (19) selon l'une quelconque des revendications 1 à 11, caractérisé en ce qu'au moins un autre anneau extérieur (20) présentant des sections périphériques et des ouvertures d'écoulement de gaz est prévu.
  13. Dispositif formant brûleur à gaz (1) selon l'une quelconque des revendications 1 à 12, caractérisé en ce qu'au moins une distance angulaire de 6 degrés est prévue entre deux ouvertures d'écoulement de gaz (10, 11) d'une ligne périphérique (L1, L2).
  14. Dispositif formant brûleur à gaz (1) selon l'une quelconque des revendications 1 à 13, comprenant en outre un dispositif de régulation (21) qui commande une arrivée de gaz aux ouvertures d'écoulement de gaz (10, 11) de telle manière que, pour un anneau respectif, les puissances de cuisson de sections périphériques (4, 5) voisines sont différentes et les puissances de cuisson de sections périphériques (4, 8) des anneaux associées au même secteur angulaire (α8) sont différentes.
  15. Poste de cuisson au gaz (17) comprenant au moins un dispositif formant brûleur à gaz (1) selon l'une quelconque des revendications 1 à 14 et un organe de service (18) pour un robinet de gaz (21) d'ajustement d'une puissance de cuisson totale pour une arrivée de gaz aux ouvertures d'écoulement de gaz (10, 11).
EP10744940.7A 2009-09-04 2010-08-23 Dispositif brûleur à gaz et foyer de cuisson à gaz Active EP2473784B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10744940.7A EP2473784B1 (fr) 2009-09-04 2010-08-23 Dispositif brûleur à gaz et foyer de cuisson à gaz

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP09290680 2009-09-04
PCT/EP2010/062241 WO2011026754A1 (fr) 2009-09-04 2010-08-23 Dispositif brûleur à gaz et foyer de cuisson à gaz
EP10744940.7A EP2473784B1 (fr) 2009-09-04 2010-08-23 Dispositif brûleur à gaz et foyer de cuisson à gaz

Publications (2)

Publication Number Publication Date
EP2473784A1 EP2473784A1 (fr) 2012-07-11
EP2473784B1 true EP2473784B1 (fr) 2015-07-01

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EP10744940.7A Active EP2473784B1 (fr) 2009-09-04 2010-08-23 Dispositif brûleur à gaz et foyer de cuisson à gaz

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EP (1) EP2473784B1 (fr)
CN (1) CN102483232B (fr)
ES (1) ES2543220T3 (fr)
WO (1) WO2011026754A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3376104A1 (fr) * 2017-03-16 2018-09-19 Vestel Elektronik Sanayi ve Ticaret A.S. Brûleur à gaz réglable
CN114046502B (zh) * 2021-11-12 2025-08-19 佛山市顺德区美的洗涤电器制造有限公司 分气盘以及燃烧器

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
FR2804496B1 (fr) * 2000-01-28 2002-07-19 Sourdillon Sa Bruleur a gaz a multiples couronnes de flammes
KR20010095890A (ko) * 2000-04-12 2001-11-07 구자홍 가스버너
CN2591423Y (zh) * 2002-08-16 2003-12-10 傅学政 双高燃烧器
ITMI20030829A1 (it) * 2003-04-18 2004-10-19 Smeg Spa Fornello a gas e piano di cottura.
WO2005080870A1 (fr) * 2004-01-23 2005-09-01 Burner Systems International (Bsi) Bruleur a gaz pour appareil culinaire
CN101024859B (zh) * 2007-04-25 2010-05-19 郑州豫兴耐火材料有限公司 带有环形布置垂直向上喷燃烧器的球形顶燃式热风炉
CN101294706A (zh) * 2007-04-29 2008-10-29 尹华金 燃气灶高效节能高速燃烧器

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WO2011026754A1 (fr) 2011-03-10
CN102483232A (zh) 2012-05-30
CN102483232B (zh) 2015-04-15
ES2543220T3 (es) 2015-08-17
EP2473784A1 (fr) 2012-07-11

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