EP0525299A2 - Gasburner - Google Patents

Gasburner Download PDF

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Publication number
EP0525299A2
EP0525299A2 EP92105391A EP92105391A EP0525299A2 EP 0525299 A2 EP0525299 A2 EP 0525299A2 EP 92105391 A EP92105391 A EP 92105391A EP 92105391 A EP92105391 A EP 92105391A EP 0525299 A2 EP0525299 A2 EP 0525299A2
Authority
EP
European Patent Office
Prior art keywords
burner
ring
gas
openings
chamber
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Withdrawn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
EP92105391A
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German (de)
French (fr)
Other versions
EP0525299A3 (en
Inventor
Karl-Heinz Hartung
Heinz Sömer
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.)
Paul Isphording Metallwerke GmbH and Co KG
Original Assignee
Paul Isphording Metallwerke GmbH and Co KG
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.)
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Publication date
Application filed by Paul Isphording Metallwerke GmbH and Co KG filed Critical Paul Isphording Metallwerke GmbH and Co KG
Publication of EP0525299A2 publication Critical patent/EP0525299A2/en
Publication of EP0525299A3 publication Critical patent/EP0525299A3/en
Withdrawn legal-status Critical Current

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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 invention relates to a gas burner for hotplates with an outer burner ring which surrounds an inner chamber and which has gas outlet openings on the outer periphery which produce the main flame and with a spark plug and a thermocouple which protrude into the inner chamber.
  • Such gas burners which have a burner ring on their top. Since the heat is only generated by the main flame, burner outputs of different strengths can only be generated by changing the strength of the main flame.
  • the object of the invention is to improve a gas burner of the type mentioned above so that a large control range of the gas flames can be achieved in a structurally simple manner.
  • an inner burner is coaxially fixed in the inner chamber, which is surrounded within the inner chamber by an annular space closed by a chamber bottom, the air for the inner burner is supplied through openings which are arranged below the burner ring above the chamber bottom .
  • the inner burner can work independently of the main burner, so that the inner burner can burn even without a main flame and thus a relatively low heat output can also be generated, the main flame being switched off. This prevents a low burner output from occurring simply because the main flame has to burn with very small flames and can therefore easily go out.
  • openings are formed by radial channels.
  • the openings can lie above the hob. It is also a great advantage if the spark plug only ignites the internal burner. It is also suggested that the thermocouple is only heated by the internal burner.
  • the gas burner has an upper ring-shaped burner ring 1, which surrounds a cylindrical interior 2 and on the outside of which holes 3 open at regular intervals, which generate the main flame.
  • the burner ring 1 is located on the top of an air mixing ring 4, which is coaxially below the burner ring and whose ring dimensions correspond approximately to those of the burner ring, so that the interior 2 is surrounded by the air mixing ring 4 in the lower region.
  • the air mixing ring 4 rests on the upper side of the burner lower part 5, which has the main gas supply connection 6 and a gas secondary connection 7.
  • the air mixing ring 4, see Figure 1 has a central ring-shaped inner part 8, which is fastened to the outer ring 4a via struts and through the inner opening of which a rod-shaped, vertically standing inner burner 9 extends.
  • the inner burner 9 consists of a lower part 9a and a lower part 9b, the lower part 9a having a shoulder 9c which engages over the top of the inner part 8.
  • the lower part 9a lies with its lower shaft area in a vertical threaded bore 5a with an external thread, so that the air mixing ring 4 can be screwed onto the lower part 5 through the lower part 9a of the inner burner 9.
  • the air mixing ring 4 can also be equipped without a central ring-shaped inner part and lies loosely on the burner lower part 5.
  • the lower part 9b of the inner burner 9 is screwed into a vertical threaded bore 5a of the lower burner part 5, the lower end of the lower part 9b of the inner burner 9a resting gas-tight on the surface 5a of the lower burner part 5.
  • the upper part 9b of the inner burner 9 is inserted into an upper opening of the lower part 9a and has an upper, enlarged head part 9d which projects beyond the lateral burner bores 9e.
  • the gas flows from the secondary connection 7 via a horizontal bore 11 to the vertical inner bore 12 and from there into an inner chamber 13 in the upper part 9b, in order to emerge from there through the radial bores 9e and to form the secondary flames.
  • the gas flows into an annular chamber 14 of the lower part 5 and from there through vertical bores 15 in the air mixing ring 4 to the annular distribution chamber 16 in the burner ring 1, in order to flow out through the bores 3 directed towards the outside and form the main flame.
  • the interior 2 is delimited by the upper side of the lower part 5, so that the upper part of the lower part forms the closed bottom 2a of the inner space 2.
  • 4 radial channels are arranged as openings 17 in the air mixing ring, through the air from the outside into the interior 2 can kick. This air is required for the flame of the inner burner 9.
  • the openings 17 are covered by a protection 18, which widens out in the shape of a truncated cone and ends at a distance above the sheet 19 of the hob 19.
  • the sheet 19 is attached to a step of the lower part 5.
  • the upper edge of the apron 18 is preferably placed on the upper outside of the air mixing ring 4.
  • thermocouple In the interior 2 are the spark plug and the thermocouple, which extend through the bottom 2a downwards.
  • the object to be heated in particular a saucepan, is placed on struts 20 which are arranged above the gas burner.

Abstract

The invention relates to a gas burner for cooking plates with an outer burner ring which surrounds an inner chamber and has on the outer circumference gas outlet openings which produce the main flame, and with an ignition plug and a thermo-element, there being fastened coaxially in the inner chamber an inner burner which is surrounded inside the inner chamber by an annular space which is closed by a chamber bottom and to which air for the inner burner is supplied through openings which are arranged below the burner ring above the chamber bottom. <IMAGE>

Description

Die Erfindung betrifft einen Gasbrenner, für Kochstellen mit einem äußeren, eine Innenkammer umgebenden Brennerring, der am Außenumfang Gasaustrittsöffnungen aufweist, die die Hauptflamme erzeugen und mit einer Zündkerze und einem Thermoelement, die in die Innenkammer hineinragen.The invention relates to a gas burner for hotplates with an outer burner ring which surrounds an inner chamber and which has gas outlet openings on the outer periphery which produce the main flame and with a spark plug and a thermocouple which protrude into the inner chamber.

Solche Gasbrenner sind bekannt, die an ihrer Oberseite einen Brennerring aufweisen. Da die Wärme nur durch die Hauptflamme erzeugt wird, sind verschieden starke Brennerleistungen nur dadurch erzeugbar, daß die Hauptflamme in ihrer Stärke verändert wird. Aufgabe der Erfindung ist, einen Gasbrenner der oben genannten Art so zu verbessern, daß auf konstruktiv einfache Weise ein großer Regelbereich der Gasflammen erzielbar ist.Such gas burners are known which have a burner ring on their top. Since the heat is only generated by the main flame, burner outputs of different strengths can only be generated by changing the strength of the main flame. The object of the invention is to improve a gas burner of the type mentioned above so that a large control range of the gas flames can be achieved in a structurally simple manner.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß in der Innenkammer ein Innenbrenner koaxial befestigt ist, der innerhalb der Innenkammer von einem durch einen Kammerboden geschlossenen Ringraum umgeben ist, dem Luft für den Innenbrenner durch Öffnungen zugeführt wird, die unterhalb des Brennerringes oberhalb des Kammerbodens angeordnet sind.This object is achieved in that an inner burner is coaxially fixed in the inner chamber, which is surrounded within the inner chamber by an annular space closed by a chamber bottom, the air for the inner burner is supplied through openings which are arranged below the burner ring above the chamber bottom .

Bei einem solchen Gasbrenner kann der Innenbrenner unabhängig vom Hauptbrenner arbeiten, so daß der Innenbrenner auch ohne Hauptflamme brennen kann und damit auch eine verhältnismäßig geringe Wärmeleistung erzeugt werden kann, wobei die Hauptflamme ausgeschaltet ist. Damit wird verhindert,daß eine geringe Brennerleistung allein dadurch erfolgt, daß die Hauptflamme mit sehr kleinen Flammen brennen muß und damit leicht verlöschen kann.In such a gas burner, the inner burner can work independently of the main burner, so that the inner burner can burn even without a main flame and thus a relatively low heat output can also be generated, the main flame being switched off. This prevents a low burner output from occurring simply because the main flame has to burn with very small flames and can therefore easily go out.

Besonders vorteilhaft ist es, wenn die Öffnungen von radialen Kanälen gebildet sind. Hierbei können die Öffnungen oberhalb der Herdmulde liegen. Von großem Vorteil ist es auch, wenn die Zündkerze nur den Innenbrenner zündet.Auch wird vorgeschlagen, daß das Thermoelement nur vom Innenbrenner beheizt wird.It when the openings are formed by radial channels is particularly advantageous. The openings can lie above the hob. It is also a great advantage if the spark plug only ignites the internal burner. It is also suggested that the thermocouple is only heated by the internal burner.

Konstruktiv besonders vorteilhaft ist es, wenn die Öffnungen in einem Lufteinmischring angeordnet sind, der unterhalb des Brennerringes koaxial liegt und

  • a) einen zentralen Bereich bildet, der durch den Innenbrenner am Brennerunterteil festgeschraubt ist, oder
  • b) ohne zentralen Bereich ausgebildet ist und lose auf dem Brennerunterteil aufliegt.
It is structurally particularly advantageous if the openings are arranged in an air mixing ring which lies coaxially below the burner ring and
  • a) forms a central area which is screwed to the lower part of the burner by the internal burner, or
  • b) is designed without a central area and lies loosely on the lower part of the burner.

Hierzu wird ferner vorgeschlagen, daß im Lufteinmischring senkrechte Kanäle sind, die die Gasversorgungskammer im Brennerunterteil mit der Verteilungskammer im Brennerring verbinden.For this purpose, it is also proposed that there are vertical channels in the air mixing ring, which connect the gas supply chamber in the lower part of the burner to the distribution chamber in the burner ring.

Die Ausführungsbeispiele der Erfindung sind in den Zeichnungen Bild 1, 2, 3,4 in einem senkrechten achsialen Schnitt dargestellt und werden im folgenden näher beschrieben.The exemplary embodiments of the invention are shown in the drawings in Figures 1, 2, 3, 4 in a vertical axial section and are described in more detail below.

Der Gasbrenner weist einen oberen ringförmigen Brennerring 1 auf, der einen zylindrischen Innenraum 2 umgibt und an dessen Außenseite in regelmäßigen Abständen Bohrungen 3 münden, die die Hauptflamme erzeugen. Der Brennerring 1 liegt auf der Oberseite eines Lufteinmischringes 4, der koaxial unter dem Brennerring liegt und dessen Ringabmessungen etwa denen des Brennerringes entsprechen, so daß der Innenraum 2 im unteren Bereich vom Lufteinmischring 4 umgeben ist.The gas burner has an upper ring-shaped burner ring 1, which surrounds a cylindrical interior 2 and on the outside of which holes 3 open at regular intervals, which generate the main flame. The burner ring 1 is located on the top of an air mixing ring 4, which is coaxially below the burner ring and whose ring dimensions correspond approximately to those of the burner ring, so that the interior 2 is surrounded by the air mixing ring 4 in the lower region.

Der Lufteinmischring 4 liegt auf der Oberseite des Brennerunterteils 5 an, das den Hauptgaszufuhranschluß 6 und einen Gasnebenanschluß 7 besitzt. Der Lufteinmischring 4 siehe Bild 1, besitzt ein mittleres ringförmiges Innenteil 8, das über Streben am Außenring 4a befestigt ist und durch dessen Innenöffnung sich ein stabförmiger, senkrecht stehender Innenbrenner 9 erstreckt. Der Innenbrenner 9 besteht aus einem Unterteil 9a und einem Unterteil 9b, wobei das Unterteil 9a eine Schulter 9c hat, die die Oberseite des Innenteils 8 übergreift. Das Unterteil 9a liegt mit seinem unterem Schaftbereich in einer senkrechten Gewindebohrung 5a mit einem Außengewinde, so daß durch das Unterteil 9a des Innenbrenners 9 der Lufteinmischring 4 auf dem Unterteil 5 festschraubbar ist.The air mixing ring 4 rests on the upper side of the burner lower part 5, which has the main gas supply connection 6 and a gas secondary connection 7. The air mixing ring 4, see Figure 1, has a central ring-shaped inner part 8, which is fastened to the outer ring 4a via struts and through the inner opening of which a rod-shaped, vertically standing inner burner 9 extends. The inner burner 9 consists of a lower part 9a and a lower part 9b, the lower part 9a having a shoulder 9c which engages over the top of the inner part 8. The lower part 9a lies with its lower shaft area in a vertical threaded bore 5a with an external thread, so that the air mixing ring 4 can be screwed onto the lower part 5 through the lower part 9a of the inner burner 9.

Der Lufteinmischring 4, siehe Bild 2, kann ebenso ohne ein mittleres ringförmiges Innenteil ausgestattet sein und liegt lose auf dem Brennerunterteil 5 an. Dabei wird das Unterteil 9b des Innenbrenners 9 in einer senkrechten Gewindebohrung 5a des Brennerunterteils 5 eingeschraubt, wobei das untere Ende des Unterteils 9b des Innenbrenners 9a gasdicht auf der Fläche 5a des Brennerunterteils 5 aufliegt.The air mixing ring 4, see Figure 2, can also be equipped without a central ring-shaped inner part and lies loosely on the burner lower part 5. The lower part 9b of the inner burner 9 is screwed into a vertical threaded bore 5a of the lower burner part 5, the lower end of the lower part 9b of the inner burner 9a resting gas-tight on the surface 5a of the lower burner part 5.

Das Oberteil 9b des Innenbrenners 9 ist in einer oberen Öffnung des Unterteils 9a eingelest und besitzt ein oberes erweitertes Kopfteil 9d, das seitliche Brennerbohrungen 9e überragt. Das Gas strömt vom Nebenanschluß 7 über eine waagerechte Bohrung 11 zur senkrechten Innenbohrung 12 und von dort in eine Innenkammer 13 im Oberteil 9b, um von dort durch die radialen Bohrungen 9e nach außen zu treten und die Nebenflammen zu bilden.The upper part 9b of the inner burner 9 is inserted into an upper opening of the lower part 9a and has an upper, enlarged head part 9d which projects beyond the lateral burner bores 9e. The gas flows from the secondary connection 7 via a horizontal bore 11 to the vertical inner bore 12 and from there into an inner chamber 13 in the upper part 9b, in order to emerge from there through the radial bores 9e and to form the secondary flames.

Vom Hauptanschluß 6 strömt das Gas in eine ringförmige Kammer 14 des Unterteils 5 und von dort durch senkrechte Bohrungen 15 im Lufteinmischring 4 zur ringförmigen Verteilerkammer 16 im Brennerring 1, um durch die nach außen gerichteten Bohrungen 3 auszuströmen und die Hauptflamme zu bilden.From the main connection 6, the gas flows into an annular chamber 14 of the lower part 5 and from there through vertical bores 15 in the air mixing ring 4 to the annular distribution chamber 16 in the burner ring 1, in order to flow out through the bores 3 directed towards the outside and form the main flame.

Der Innenraum 2 ist durch die Oberseite des Unterteils 5 begrenzt, so daß die Unterteiloberseite den geschlossenen Boden 2a des Innenraums 2 bildet. Oberhalb des Bodens 2a sind im Lufteinmischring 4 radiale Kanäle als Öffnungen 17 angeordnet, durch die Luft von außen in den Innenraum 2 treten kann. Diese Luft wird für die Flamme des Innenbrenners 9 benötigt. Außen sind die Öffnungen 17 durch einen Schutz 18 überdeckt, die sich nach außen kegelstumpfförmig erweitert und in einem Abstand über dem Blech 19 der Herdmulde 19 endet. Das Blech 19 ist an einer Stufe des Unterteils 5 befestigt. Vorzugsweise ist der obere Rand der Schürze 18 an der oberen Außenseite des Lufteinmischrings 4 aufgelegt.The interior 2 is delimited by the upper side of the lower part 5, so that the upper part of the lower part forms the closed bottom 2a of the inner space 2. Above the floor 2a, 4 radial channels are arranged as openings 17 in the air mixing ring, through the air from the outside into the interior 2 can kick. This air is required for the flame of the inner burner 9. Outside, the openings 17 are covered by a protection 18, which widens out in the shape of a truncated cone and ends at a distance above the sheet 19 of the hob 19. The sheet 19 is attached to a step of the lower part 5. The upper edge of the apron 18 is preferably placed on the upper outside of the air mixing ring 4.

Im Innenraum 2 stehen senkrecht die Zündkerze und das Thermoelement, die durch den Boden 2a nach unten hindurchreichen. Der zu erhitzende Gegenstand, insbesondere ein Kochtopf wird auf Streben 20 gestellt, die oberhalb des Gasbrenners angeordnet sind.In the interior 2 are the spark plug and the thermocouple, which extend through the bottom 2a downwards. The object to be heated, in particular a saucepan, is placed on struts 20 which are arranged above the gas burner.

Claims (8)

1. Gasbrenner für Kochstellen mit einem äußeren, eine Innenkammer (2) umgebenden Brennerring (1), der am Außenumfang Gasaustrittsöffnungen (3) aufweist, die die Hauptflamme erzeugen und mit einer Zündkerze und einem Thermoelement, die in die Innenkammer (2) hineinragen, dadurch gekennzeichnet, daß in der Innenkammer (2) ein Innenbrenner (9) koaxial befestigt ist, der innerhalb der Innenkammer (9) von einem durch einen Kammerboden (2a) geschlossenen Ringraum umgeben ist, dem Luft für den Innenbrenner durch Öffnungen (17) zugeführt wird, die unterhalb des Brennerringes (1) oberhalb des Kammerbodens (2a) angeordnet sind.1.Gas burner for hotplates with an outer burner ring (1) surrounding an inner chamber (2), which has gas outlet openings (3) on the outer circumference which generate the main flame and with a spark plug and a thermocouple which protrude into the inner chamber (2), characterized in that an inner burner (9) is coaxially fastened in the inner chamber (2) and is surrounded within the inner chamber (9) by an annular space closed by a chamber bottom (2a), to which air for the inner burner is supplied through openings (17) which are arranged below the burner ring (1) above the chamber bottom (2a). 2. Gasbrenner nach Anspruch 1, dadurch gekennzeichnet, daß die Öffnungen (17) von radialen Kanälen gesichert sind.2. Gas burner according to claim 1, characterized in that the openings (17) are secured by radial channels. 3. Gasbrenner nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Öffnungen (17) oberhalb der Herdmulde liegen.3. Gas burner according to claim 1 or 2, characterized in that the openings (17) lie above the hob. 4. Gasbrenner nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß die Zündkerze nur den Innenbrenner (9) zündet.4. Gas burner according to one of the preceding claims, characterized in that the spark plug ignites only the inner burner (9). 5. Gasbrenner nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß das Thermoelement nur vom Innenbrenner (9) beheizt wird.5. Gas burner according to one of the preceding claims, characterized in that the thermocouple is heated only by the inner burner (9). 6. Gasbrenner nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß die Öffnungen (17) in einem Lufteinmischring (4) angeordnet sind, der unterhalb des Brennerringes (1) koaxial liegt und einen zentralen Bereich (8) bildet, der durch den Innenbrenner (9) am Brennerunterteil (5) festgeschraubt ist.6. Gas burner according to one of the preceding claims, characterized in that the openings (17) are arranged in an air mixing ring (4) which is coaxial below the burner ring (1) and forms a central region (8) which is through the inner burner ( 9) is screwed onto the lower part of the burner (5). 7. Gasbrenner nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß die Öffnungen (17) in einem Lufteinmischring (4) angeordnet sind, der unterhalb des Brennerringes (1) koaxial liegt, und ohne einen zentral gebildeten Bereich in einer vorgesehen Zentrierung am Brennerunterteil (5) lose aufliegt.7. Gas burner according to one of the preceding claims, characterized in that the openings (17) are arranged in an air mixing ring (4) which is coaxial below the burner ring (1), and without a centrally formed area in a provided centering on the burner lower part ( 5) lies loosely. 8. Gasbrenner nach Anspruch 6, dadurch gekennzeichnet, daß im Lufteinmischring (4) senkrechte Kanäle (15) sind, die die Gasversorgungskammer (14) im Brennerunterteil (5) mit der Verteilungskammer (16) im Brennerring (1) verbinden.8. Gas burner according to claim 6, characterized in that in the air mixing ring (4) are vertical channels (15) which connect the gas supply chamber (14) in the burner lower part (5) with the distribution chamber (16) in the burner ring (1).
EP19920105391 1991-07-31 1992-03-28 Gasburner Withdrawn EP0525299A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4125308A DE4125308C2 (en) 1991-07-31 1991-07-31 gas burner
DE4125308 1991-07-31

Publications (2)

Publication Number Publication Date
EP0525299A2 true EP0525299A2 (en) 1993-02-03
EP0525299A3 EP0525299A3 (en) 1993-05-26

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Application Number Title Priority Date Filing Date
EP19920105391 Withdrawn EP0525299A3 (en) 1991-07-31 1992-03-28 Gasburner

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US (1) US5277576A (en)
EP (1) EP0525299A3 (en)
DE (1) DE4125308C2 (en)

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CN103322598A (en) * 2012-03-20 2013-09-25 永康市博一炉具有限公司 Energy saving and environment protecting burning machine of commercial kitchen equipment
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CN112050211A (en) * 2020-09-24 2020-12-08 宁波方太厨具有限公司 Gas kitchen ranges
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DE4125308A1 (en) 1993-02-04
EP0525299A3 (en) 1993-05-26
DE4125308C2 (en) 2002-06-13

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