EP2090826A1 - Brûleur à gaz - Google Patents

Brûleur à gaz Download PDF

Info

Publication number
EP2090826A1
EP2090826A1 EP08101661A EP08101661A EP2090826A1 EP 2090826 A1 EP2090826 A1 EP 2090826A1 EP 08101661 A EP08101661 A EP 08101661A EP 08101661 A EP08101661 A EP 08101661A EP 2090826 A1 EP2090826 A1 EP 2090826A1
Authority
EP
European Patent Office
Prior art keywords
burner head
burner
head according
gas
annular gap
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
EP08101661A
Other languages
German (de)
English (en)
Other versions
EP2090826B1 (fr
Inventor
Weiwei Miao
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
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 BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Priority to ES08101661.0T priority Critical patent/ES2525209T3/es
Priority to EP08101661.0A priority patent/EP2090826B1/fr
Priority to CN200810086164.5A priority patent/CN101509672B/zh
Publication of EP2090826A1 publication Critical patent/EP2090826A1/fr
Application granted granted Critical
Publication of EP2090826B1 publication Critical patent/EP2090826B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F23D14/06—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
    • 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
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details
    • F23D14/48—Nozzles
    • F23D14/58—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2207/00—Ignition devices associated with burner
    • 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 invention relates to a burner head for a gas burner of a gas hob, with a burner head and a burner head, wherein between the burner head and the burner head upper part is a gas mixing chamber, wherein the burner head upper part on an outer peripheral surface gas outlet openings, which are connected to the gas mixing chamber, and wherein located below the gas outlet openings an annular gap which is connected to the gas mixing chamber.
  • Gas burners of the type mentioned are used in gas hobs, i. used in stoves and in gas troughs.
  • the gas burner has a burner head, which is visibly located above a cooking cover, and a burner lower part, which is not visible under the cooking cover.
  • a gas nozzle with which primary air is added to the gas flow arriving from a gas line.
  • the gas mixing chamber located in the interior of the burner head, between the burner head upper part and the burner head lower part, is designed so that the best possible thorough mixing of gas and primary air takes place.
  • the gas flames which generate the heat required for cooking arise at the gas outlet openings, which are connected via bores with the gas mixing chamber.
  • the power of the gas burner is controlled by the amount of per-unit time from the gas outlet openings effluent gas-air mixture.
  • the annular gap for the holding flame is formed by a defined gap between the burner head lower part and the burner head upper part. Both the burner head base and the burner head shell are thus continuously in contact with the holding flame and must therefore be made of high temperature resistant material.
  • the present invention has for its object to provide a burner head available, which is at least partially produced from less expensive, less temperature-resistant materials.
  • the annular gap is designed as an incorporated into the burner head shell groove.
  • the annular gap is thus completely formed in the burner head shell.
  • the holding flame thus occurs only with the burner head shell in contact, but not with the burner head base.
  • the groove forming the annular gap is incorporated, for example, by turning or milling into the burner head upper part.
  • the annular gap is incorporated radially from the outside into the burner head shell.
  • the annular gap extends horizontally from the outside of the burner head upper part inwards.
  • the gas supply to the holding flame is effected in that the annular gap is connected via a plurality of bores with the gas mixing chamber.
  • At least six holes preferably at least twelve holes are provided. With this number of holes, a uniform supply of burning at the annular gap holding flame is guaranteed with gas-air mixture.
  • a uniform flow through the annular gap with gas-air mixture is also ensured by the fact that the holes open from below into the annular gap.
  • the gas-air mixture is deflected after entering at least once before it exits through the annular gap.
  • the burner head upper part lies with a support surface, which is located radially outside the bores, on the burner head lower part. Said bearing surface is closed in the circumferential direction and prevents the escape of gas-air mixture through the parting line between the burner head base and burner head shell.
  • the holes are located radially within the bearing surface, so that gas-air mixture from the gas mixing chamber can enter into the holes.
  • the burner head shell is made of a material having a heat resistance of more than 700 ° C.
  • the burner head shell is made of a brass alloy. Brass alloys are characterized by a high temperature resistance, but have a high specific mass and are relatively expensive.
  • the burner head base is made of a material having a heat resistance of less than 700 ° C. This is inventively possible because the burner head part has no direct contact with a gas flame.
  • the burner head base is made of an aluminum alloy.
  • Aluminum alloys have a low specific mass and are relatively inexpensive.
  • the burner head shell is designed annular and is arranged in the middle of the burner head upper part of an internal burner.
  • the annular burner head is then referred to as external burner.
  • Burners of this type have a first flame ring on the inner burner and one or two more flame rings on the outer burner. If the internal burner and the external burner are supplied with gas independently of each other, the burner is referred to as a dual-circuit burner. If only a small heat output is required in a dual-circuit burner, only the internal burner burns. As soon as the required heating power exceeds the maximum burner output of the internal burner, the external burner is switched on.
  • the inner burner has an inner burner upper part with gas outlet openings. During operation, the gas flames of the internal burner burn at these gas outlet openings.
  • the gas outlet openings of the internal burner are connected to a further gas mixing chamber.
  • the gas mixing chambers of the inner burner and the outer burner are thus separated from each other.
  • a burner head intermediate part which rests on the burner head lower part, wherein the inner burner upper part rests on the burner head intermediate part.
  • the burner head lower part is a common component of the outer burner and the inner burner.
  • the burner head intermediate part connects the burner head lower part with the burner head upper part and with the inner burner upper part.
  • the gas mixing chambers of the outer burner and the inner burner are separated by the burner head intermediate part.
  • annular gap is formed, which is connected to a gas mixing chamber of the inner burner.
  • a small amount of gas occurs at this annular gap, so that the holding flame of the internal burner is formed at the annular gap.
  • the burner head intermediate part is made in two parts and has an upper and a lower part. These two parts can be made of different materials.
  • the inner burner top and the upper burner head intermediate are made of a material having a heat resistance higher than 700 ° C. Both the inner burner top and the inner burner intermediate part have a direct Contact with the holding flame, so that sufficient heat resistance of both components is required.
  • the inner burner upper part and the upper burner head intermediate part are each made of a brass alloy.
  • the upper burner head intermediate part has at least one extension with a Kochzündschlitz, which extends from the inner burner in the direction of the burner head upper part.
  • the Kochzündschlitz arranged on the extension serves to transport the flame of the inner burner in the direction of the outer burner.
  • the extension is dimensioned so that between the extension and the burner head upper part of the outer burner still remains a clear gap. In this distance, for example, a thermocouple can be arranged, with which the presence of a flame is detected at the inner burner.
  • the burner head has a Kochzündschlitz which extends radially from the inside out and connects the gas mixing chamber with the top of the burner head shell.
  • This Kochzündschlitz serves to transport the flame from the inner burner to the gas outlet openings on the outer circumference of the burner head upper part of the outer burner, as soon as it is supplied with gas-air mixture.
  • the ignition of the outer burner is accelerated when the Matterzündschlitz is arranged in the burner head upper part in extension of one of the Kochzündschlitze the inner burner.
  • the ignition behavior of the outer burner can be further improved if the Kochzündschlitz in the burner head upper part in the region of its radially inner end has a substantially vertical bore which connects the gas mixing chamber with the upper side of the burner head upper part.
  • the diameter of the vertical hole is larger than the width of the Kochzündschlitzes. The bore ensures that the Kochzündschlitz also at its inner end is sufficiently filled with gas-air mixture.
  • FIG. 1 shows a burner head according to the invention in a perspective view. To recognize the following components. A burner head lower part 1, a burner head upper part 2 of an external burner, a burner head upper part 3 of an internal burner, an upper burner head intermediate part 4, a lower burner head intermediate part 14 and an ignition electrode 5.
  • the burner head upper part 2 of the outer burner has numerous gas outlet openings 6 on its outer circumferential surface. Further gas outlet openings 7 are located on the inclined inner surface of the annular burner head upper part 3. At the gas outlet openings 6, 7 arise during operation of the burner, the gas flames with which the heat required for cooking is generated.
  • the burner head intermediate parts 4, 14 define separate gas mixing chambers for the internal burner and for the external burner. The gas mixing chambers are designed so that the gas-air stream entering from below is mixed as well as possible.
  • a groove-shaped annular gap 8 is incorporated into the burner head upper part 3. Through this annular gap 8 occurs during operation of the burner continuously from a small amount of gas-air mixture. At the annular gap 8 burns thereby a small holding flame. This holding flame serves to prevent a lifting of the flames burning at the gas outlet openings 6, in that the holding flame continuously ignites the gas-air stream emerging from the gas outlet openings just behind the respective gas outlet opening 6.
  • the burner head upper part 3 of the internal burner likewise has gas outlet openings 9 and a gap 10 arranged underneath for a holding flame.
  • the gap 10 is formed between the inner burner upper part 3 and the inner burner intermediate part 4.
  • the burner head upper part 2 has a Kochzündschlitz 11. From the Matterzündschlitz 11 occurs during operation of the outer burner, a small amount of gas-air mixture, so that along the Kochzündschlitzes 11 a small flame burns, which is ignited by the inner burner and extends into the region of the gas outlet openings 6. In the region of its radially inner end, the Matterzündschlitz 11 has a bore 12, which facilitates the escape of gas-air mixture at this point.
  • Another Matterzündschlitz 21 at the upper burner head intermediate part 4 serves to guide the flame of the inner burner defined to the outside. This ensures that a arranged in the region of the outer end of the Kochzündschlitzes 21 thermocouple is heated rapidly by the flame of the inner burner. A rapid transmission of the flame of the inner burner to the outer burner is achieved in that the Kochzündschlitz 11 is disposed on the burner head upper part 2 in extension of the Kochzündschlitze 21.
  • FIG. 2 are the components of the burner head according to Fig. 1 shown in detail. With screws 16 it is indicated that the burner head lower part 1 is screwed in the assembled state with the lower burner head intermediate part 14. With screws 17, the lower burner head intermediate part 14 is screwed to the upper burner head intermediate part 4. The burner head upper part 2 is loosely placed on the burner head lower part 1, as well as the inner burner upper part 3 on the upper burner head intermediate part. 4
  • the burner head upper part 2, the inner burner upper part 3 and the upper burner head intermediate part 4 are made of a brass alloy with a temperature resistance of over 700 ° C, while the lower burner head intermediate part 14 and the burner head lower part are made of a low-cost and lightweight aluminum alloy.
  • FIG. 3 A cross section of the burner head is in FIG. 3 shown. Evident here is in particular the circumferential annular gap 8 for the holding flame of the outer burner.
  • the flow path of the gas-air mixture in the annular gap 8 is illustrated with arrows.
  • annular gap 10 can be seen for the holding flame of the internal burner.
  • This annular gap 10 is formed by the outer peripheral surfaces of the upper burner head intermediate part 4 and the inner burner upper part 3 are slightly spaced from each other.
  • the annular gap 10 of the internal burner is connected to the gas mixing chamber 20 of the internal burner.
  • annular gap 8 of the outer burner is shown in detail.
  • the annular gap 8 is machined into the burner head upper part 2 as a groove and has the height H and the depth S.
  • the maximum distance bores 18 from the outer surface of the burner head upper part 2 is the dimension L.
  • the depth s is greater than the dimension L, so that even with possibly occurring manufacturing tolerances all holes 18 open with a full cross-section in the annular gap 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
EP08101661.0A 2008-02-15 2008-02-15 Tête de brûleur à gaz Active EP2090826B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ES08101661.0T ES2525209T3 (es) 2008-02-15 2008-02-15 Cabeza de quemador de gas
EP08101661.0A EP2090826B1 (fr) 2008-02-15 2008-02-15 Tête de brûleur à gaz
CN200810086164.5A CN101509672B (zh) 2008-02-15 2008-03-17 燃气灶

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08101661.0A EP2090826B1 (fr) 2008-02-15 2008-02-15 Tête de brûleur à gaz

Publications (2)

Publication Number Publication Date
EP2090826A1 true EP2090826A1 (fr) 2009-08-19
EP2090826B1 EP2090826B1 (fr) 2014-11-19

Family

ID=39689395

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08101661.0A Active EP2090826B1 (fr) 2008-02-15 2008-02-15 Tête de brûleur à gaz

Country Status (3)

Country Link
EP (1) EP2090826B1 (fr)
CN (1) CN101509672B (fr)
ES (1) ES2525209T3 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013064657A1 (fr) * 2011-11-04 2013-05-10 Somipress - Societa' Metalli Iniettati S.P.A. Brûleur à gaz dont les flammes sont orientées vers l'intérieur
WO2013113497A3 (fr) * 2012-02-01 2014-01-23 Sabaf S.P.A. Brûleur à gaz pour table de cuisson domestique
US20140060517A1 (en) * 2011-02-14 2014-03-06 Hangzhou Robam Appliances Co., Ltd. Burner
CN103939904A (zh) * 2014-02-24 2014-07-23 宁波方太厨具有限公司 一种燃气灶具的燃烧器火盖
CN103939905A (zh) * 2014-02-24 2014-07-23 宁波方太厨具有限公司 燃气灶具的燃烧器火盖
EP2806213A3 (fr) * 2013-05-23 2015-04-01 LG Electronics, Inc. Appareil de cuisson et brûleur
AU2013205632B2 (en) * 2012-02-01 2015-12-24 Sabaf S.P.A. A gas burner for domestic cooktop

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112236619B (zh) * 2018-06-25 2023-10-03 伊莱克斯家用电器股份公司 燃气燃烧器组件和包括至少一个燃气燃烧器组件的燃气烹饪器具
CN111121030B (zh) * 2018-10-31 2024-10-22 宁波方太厨具有限公司 一种火盖和应用有上述火盖的上进风燃烧器以及灶具
JP7132111B2 (ja) * 2018-12-11 2022-09-06 リンナイ株式会社 コンロ用バーナ並びにガスコンロ
USD926520S1 (en) 2019-01-09 2021-08-03 Whirlpool Corporation Cooking burner
CN109764363B (zh) * 2019-01-24 2020-07-28 北京新同达机电装备科技有限公司 一种节能大锅灶燃烧器
US11460190B2 (en) * 2019-07-29 2022-10-04 Haier Us Appliance Solutions, Inc. Gas burner assembly for a cooktop appliance
US11940148B2 (en) 2021-10-28 2024-03-26 Electrolux Appliances Aktiebolag Multi injection dual ring gas burner for domestic gas cooking units
JP2025162717A (ja) * 2024-04-16 2025-10-28 リンナイ株式会社 ガスバーナ並びに加熱調理器

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL256296A (fr) *
DE576000C (de) * 1933-05-06 Theodor Wieder Brennerkopf
DE1933609U (de) 1962-11-15 1966-03-03 Procedes Sauter Fa Fuer alle gasarten verwendbarer brenner.
GB1370326A (en) * 1972-04-19 1974-10-16 Radiation Ltd Gaseous fuel burners
DE3346929A1 (de) 1983-12-24 1985-07-11 Paul Isphording Metallwerke GmbH & Co KG, 5952 Attendorn Brenneroberteil fuer eine gaskochstelle
EP0534302A2 (fr) * 1991-09-26 1993-03-31 MERLONI ELETTRODOMESTICI S.p.A. Brûleur à gaz pour la cuisson d'aliments
DE9318510U1 (de) * 1993-02-03 1994-07-28 Elektro- Und Gas-Armaturen-Fabrik Gmbh, 58119 Hagen Sinterbauteil
US5690483A (en) * 1996-07-17 1997-11-25 Eaton Coporation Gaseous fuel burner
US5704778A (en) * 1997-02-28 1998-01-06 Tri Square Industrial Co., Ltd. Gas burner
WO2002025170A1 (fr) * 2000-09-23 2002-03-28 Ega Engineering Gmbh Bruleur a deux circuits comprenant un anneau de bruleur et un bruleur central
US20070218414A1 (en) * 2005-09-13 2007-09-20 Uwe Harneit Gas burner

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL256296A (fr) *
DE576000C (de) * 1933-05-06 Theodor Wieder Brennerkopf
DE1933609U (de) 1962-11-15 1966-03-03 Procedes Sauter Fa Fuer alle gasarten verwendbarer brenner.
GB1370326A (en) * 1972-04-19 1974-10-16 Radiation Ltd Gaseous fuel burners
DE3346929A1 (de) 1983-12-24 1985-07-11 Paul Isphording Metallwerke GmbH & Co KG, 5952 Attendorn Brenneroberteil fuer eine gaskochstelle
EP0534302A2 (fr) * 1991-09-26 1993-03-31 MERLONI ELETTRODOMESTICI S.p.A. Brûleur à gaz pour la cuisson d'aliments
DE9318510U1 (de) * 1993-02-03 1994-07-28 Elektro- Und Gas-Armaturen-Fabrik Gmbh, 58119 Hagen Sinterbauteil
US5690483A (en) * 1996-07-17 1997-11-25 Eaton Coporation Gaseous fuel burner
US5704778A (en) * 1997-02-28 1998-01-06 Tri Square Industrial Co., Ltd. Gas burner
WO2002025170A1 (fr) * 2000-09-23 2002-03-28 Ega Engineering Gmbh Bruleur a deux circuits comprenant un anneau de bruleur et un bruleur central
US20070218414A1 (en) * 2005-09-13 2007-09-20 Uwe Harneit Gas burner

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140060517A1 (en) * 2011-02-14 2014-03-06 Hangzhou Robam Appliances Co., Ltd. Burner
WO2013064657A1 (fr) * 2011-11-04 2013-05-10 Somipress - Societa' Metalli Iniettati S.P.A. Brûleur à gaz dont les flammes sont orientées vers l'intérieur
RU2609814C2 (ru) * 2011-11-04 2017-02-06 Сомипресс-Сочиета' Металли Иньеттати С.П.А. Газовая горелка с обращенным внутрь пламенем
US9625159B2 (en) 2011-11-04 2017-04-18 Somipress—Societa'metalli Iniettati S.P.A. Gas burner with inward facing flame
WO2013113497A3 (fr) * 2012-02-01 2014-01-23 Sabaf S.P.A. Brûleur à gaz pour table de cuisson domestique
AU2013205632B2 (en) * 2012-02-01 2015-12-24 Sabaf S.P.A. A gas burner for domestic cooktop
US9612018B2 (en) 2012-02-01 2017-04-04 Sabaf S.P.A. Gas burner for domestic cooktop
EP2806213A3 (fr) * 2013-05-23 2015-04-01 LG Electronics, Inc. Appareil de cuisson et brûleur
US9528708B2 (en) 2013-05-23 2016-12-27 Lg Electronics Inc. Cooking appliance and burner
CN103939904A (zh) * 2014-02-24 2014-07-23 宁波方太厨具有限公司 一种燃气灶具的燃烧器火盖
CN103939905A (zh) * 2014-02-24 2014-07-23 宁波方太厨具有限公司 燃气灶具的燃烧器火盖
CN103939905B (zh) * 2014-02-24 2016-08-24 宁波方太厨具有限公司 燃气灶具的燃烧器火盖

Also Published As

Publication number Publication date
EP2090826B1 (fr) 2014-11-19
CN101509672B (zh) 2014-08-20
ES2525209T3 (es) 2014-12-18
CN101509672A (zh) 2009-08-19

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