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EP3102878B1 - Brûleur à gaz, table de cuisson et foyer - Google Patents

Brûleur à gaz, table de cuisson et foyer Download PDF

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Publication number
EP3102878B1
EP3102878B1 EP15704382.9A EP15704382A EP3102878B1 EP 3102878 B1 EP3102878 B1 EP 3102878B1 EP 15704382 A EP15704382 A EP 15704382A EP 3102878 B1 EP3102878 B1 EP 3102878B1
Authority
EP
European Patent Office
Prior art keywords
gas
primary air
burner
guide element
gas burner
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.)
Active
Application number
EP15704382.9A
Other languages
German (de)
English (en)
Other versions
EP3102878A1 (fr
Inventor
Luis Acosta Herrero
Javier Corral Ricalde
Melca Gutierrez Humara
Pedro Herrera Estrada
Alberto Lopez Ortiz
Jose Salvador Ochoa Torres
Luis Antonio Palacios Valdueza
Cristina RUEDA SANUDO
Luping Wang
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 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 Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP3102878A1 publication Critical patent/EP3102878A1/fr
Application granted granted Critical
Publication of EP3102878B1 publication Critical patent/EP3102878B1/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
    • 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
    • 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
    • F23D14/62—Mixing devices; Mixing tubes
    • F23D14/64—Mixing devices; Mixing tubes with injectors
    • 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
    • F23D2900/14021—Premixing burners with swirling or vortices creating means for fuel or air

Definitions

  • the present invention relates to a gas burner, a cooking station and a stove.
  • Gas burners use a Venturi nozzle to mix the fuel gas with primary air.
  • fuel gas is injected into a mixing chamber of the gas burner with the aid of a gas nozzle.
  • primary air openings primary air is sucked in from the environment of the gas burner and mixed with the fuel gas.
  • the JP 3109608 U describes a gas burner having vanes arranged to direct the primary air to a fuel gas jet to obtain a good mixing of the primary air with the fuel gas.
  • the FR 1 141 977 A describes a gas burner with a mixing section having curved vanes.
  • the EP 2 072 895 A1 describes a gas burner with a nozzle arranged upstream of a gas nozzle, which comprises guide elements.
  • an object of the present invention is to provide an improved gas burner.
  • a gas burner for a cooking station with a burner housing which can rest on a hob plate and / or be attached to a provided on the burner housing mixing section for mixing fuel gas with primary air
  • the mixing section is cylindrical and extending from a bottom of the Burner housing outstretched, and provided on the mixing section arranged gas nozzle.
  • the gas nozzle is adapted to inject the fuel gas into a mixing chamber of the mixing section, wherein the mixing section comprises at least one primary air inlet for sucking the primary air from an environment of the gas burner into the mixing space.
  • the at least one primary air inlet has a guide element, adapted to direct the primary air drawn into the mixing space onto the fuel gas injected into the mixing space in such a way that the primary air mixes with the fuel gas, the guide element having a first end edge and a second end edge, the guide element being curved in such a way, in that the primary air flows along the guide element from the first end edge to the second end edge and that the guide element points past the gas nozzle in the area of the second end edge and a perpendicular to a tangent of the second end edge simultaneously intersects a central axis of the gas nozzle and the second end edge ,
  • the guide element is curved in such a way that the primary air is directed tangentially by the guide element onto the fuel gas injected in the mixing space.
  • a deflection of the injected fuel gas jet is prevented.
  • a better turbulence of the primary air is thereby achieved. Due to the fact that the second end edge points past the gas nozzle, it is achieved, in particular, that the primary air does not impinge directly on the injected fuel gas jet. This prevents the fuel gas jet from being deflected.
  • the primary air flows laterally past the injected jet of fuel, a turbulence of the primary air can be achieved, so that the primary air flows helically around the injected fuel gas flow on the outside and uniformly mixes with the fuel gas flow through the vortex formation, without deflecting it.
  • good combustion of the primary air-fuel gas mixture is ensured, whereby the carbon monoxide pollution is reduced.
  • the degrees of freedom in the geometric design of the gas burner increases, since the mixing chamber can be reduced in comparison to known gas burners.
  • the guide element is a guide vane.
  • the first end edge is in particular a leading edge of the guide vane and the second end edge is in particular a trailing edge of the vane.
  • the guide element is arcuately curved at least in sections.
  • the guide element can be curved in a circular arc.
  • the guide element may further comprise non-curved, that is straight, sections.
  • the guide element may be partially curved and partially straight.
  • the gas nozzle in the direction of a distribution chamber of the gas burner, wherein the distribution chamber is adapted to distribute a fuel gas-primary air mixture on burner nozzles of the gas burner.
  • the mixing section has a multiplicity of primary air inlets, wherein a primary element is assigned to each primary air inlet.
  • the primary air inlets are evenly distributed around a circumference of the mixing section. As a result, a uniform inflow of the primary air is ensured in the mixing chamber.
  • a second end edge of a guide element points towards an adjacently arranged guide element.
  • a tangent to the second end edge of the guide element intersects the adjacently arranged guide element.
  • the primary air inlets are distributed uniformly around a circumference of the mixing section.
  • a perpendicular to a tangent of the second end edge cuts simultaneously a central axis of the gas nozzle and the second end edge.
  • the guide element is adapted to divert the sucked into the mixing chamber primary air such that it is swirled.
  • the primary air is swirled so that it flows helically around the injected fuel gas.
  • the gas nozzle is positioned centrally at a bottom of the mixing space.
  • the bottom preferably has a circular geometry.
  • the gas nozzle preferably protrudes into the mixing chamber.
  • the gas nozzle can be screwed into the floor.
  • the mixing section and the burner housing are designed in several parts.
  • the mixing section and the burner housing are each an independent component.
  • the mixing section can for example be screwed to the burner housing, caulked or otherwise firmly connected.
  • the gas burner further comprises a burner head arranged on the burner housing for burning the fuel gas mixed with the primary air.
  • the burner head preferably has a plurality of burner nozzles, which are arranged in particular evenly distributed around a circumference of the burner head. From the burner nozzles, the primary air-fuel gas mixture flows out and burns.
  • the burner head is arranged downstream of the mixing space.
  • the primary air fuel gas mixture for all burner nozzles is mixed simultaneously in the mixing chamber. This allows a structurally simple construction of the gas burner.
  • the hob is a gas stove.
  • the cooking area can be part of a household appliance.
  • a stove is proposed with such a gas burner and / or such a cooking place.
  • the stove is a gas stove.
  • the stove is in particular a household appliance.
  • the Fig. 1 shows in a schematic perspective view of a gas burner 1.
  • the Fig. 2 shows the gas burner 1 in a schematic partial sectional view.
  • the Fig. 3 shows a sectional view of the gas burner 1 according to the section line III-III of Fig. 2 , The following is on the Fig. 1 to 3 simultaneously referred to.
  • the gas burner 1 may be associated with a cooking point 2, in particular a gas hob, a hearth 3, in particular a gas range.
  • the gas burner 1 has a burner housing 4 and a top side placed on the burner housing 4 Burner head 5 on.
  • the burner housing 4 may rest on a hob plate and / or be attached thereto.
  • the burner housing 4 and the burner head 5 are preferably designed as metal components, for example as aluminum or steel components.
  • a plurality of burner nozzles 6 are provided, of which in the Fig. 1 and 2 only one is provided with a reference numeral.
  • the burner nozzles 6 are preferably distributed uniformly around a circumference of the burner head 5.
  • a distribution chamber 7 is provided between the burner housing 4 and the burner head.
  • a distribution chamber 7 is provided between the burner housing 4 and the burner head.
  • the distribution chamber 7 also serves the uniform distribution of the fuel gas-primary air mixture to the burner nozzles. 6
  • the gas burner 1 furthermore has a mixing section 8 provided on the burner housing 4.
  • the mixing section 8 is arranged in particular on the underside of the burner housing 4.
  • the mixing section 8 is cylindrical and extends out of a lower side 9 of the burner housing 4.
  • the mixing section 8 can be embodied in one piece with the burner housing 4. Further, the mixing portion 8 and the burner housing 4, as in the Fig. 2 shown to be made in several parts. For this purpose, the mixing section 8 may for example be screwed to the burner housing 4, caulked or otherwise firmly connected.
  • a gas nozzle 10 is provided.
  • the gas nozzle 10 is arranged in particular centrally in the cylindrical mixing section 8.
  • the gas nozzle 10 is disposed on a bottom 11 of the mixing section 8.
  • a mixing chamber 12 is provided in the mixing section 8.
  • the bottom 11 is a bottom of the mixing space 12.
  • the gas nozzle 10 is arranged in the mixing space 12 and / or protrudes into it.
  • the mixing chamber 12 is fluidically connected to the distribution chamber 7.
  • the distribution chamber 7 and the burner head 5 are arranged downstream of the mixing chamber 12.
  • the gas nozzle 10 is adapted to inject fuel gas into the mixing chamber 12 of the mixing section 8.
  • the mixing section 8 has at least one primary air inlet 13.
  • a plurality of primary air inlets 13 are provided, which are arranged in particular uniformly distributed around a circumference u of the mixing section 8.
  • the at least one primary air inlet 13 is adapted to receive primary air from an environment 14 of the Gas burner 1 to suck.
  • the mixing section 8 with the gas nozzle 10 acts in particular as a Venturi nozzle. That is, with the aid of the fuel gas flowing into the mixing chamber 12, primary air is sucked in laterally through the primary air inlets 13.
  • Each primary air inlet 13 has a guide element 15, which is set up to direct the primary air sucked into the mixing chamber 12 onto the fuel gas injected into the mixing chamber 12.
  • the guide element 15 is in particular a guide blade.
  • the guide element 15 is arcuately curved at least in sections.
  • the guide element 15 has, like the Fig. 3 indicates a leading edge or first end edge 16 and a trailing edge or second end edge 17.
  • the first end edge 16 is assigned to the circumference u of the mixing section 8.
  • the first end edge 16 may lie on the circumference u.
  • the second end edge 17 is remote from the circumference u.
  • the guide element 15 is curved in such a way that the primary air flows along the guide element 15 from the first end edge 16 to the second end edge 17. As a result, the primary air is passed to the gas nozzle 10.
  • the guide element 15 is also curved in such a way that the second end edge 17 points past the gas nozzle 10.
  • the primary air is directed tangentially by the guide element 15 onto the fuel gas injected into the mixing chamber 12.
  • the guide elements 15 are arranged such that the second end edge 17 of a respective guide element 15 faces an adjacently arranged guide element 15.
  • a respective tangent 18 is arranged on the second end edge 17 such that it intersects an adjacent guide element 15.
  • the guide elements 15 are further adapted to divert the sucked into the mixing chamber 12 primary air such that it is swirled.
  • a vertical 19 on the tangent 18 simultaneously cuts a central axis 20 of the gas nozzle 10 and the second end edge 17.
  • the Fig. 4 shows the mixing of the primary air with the injected from the gas nozzle 10 in the mixing chamber 12 fuel gas.
  • the primary air is thereby deflected by the guide elements 15 such that this is swirled and mixed so evenly in the mixing chamber 12 with the fuel gas.
  • the swirling primary air flows around the fuel gas flow in a spiral shape and mixes with the fuel gas without significantly distracting the fuel gas flow. This makes it possible to make both the mixing chamber 12 and the distribution chamber 7 smaller in volume. Increase this Furthermore, the primary air-fuel gas mixture is better combustible, whereby the efficiency of the gas burner 1 is increased. At the same time a reduced carbon monoxide emission is achieved by the better combustion.
  • the Fig. 5 shows for comparison the flow situation in a mixing chamber of a known gas burner.
  • the primary air laminar flows laterally past the fuel gas flow, without mixing with this.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)

Claims (14)

  1. Brûleur à gaz (1) pour une table de cuisson (2), avec un boîtier de brûleur (4) qui peut reposer sur une plaque de cuisson et/ou peut être fixé au niveau de celle-ci, une section de mélange (8) prévue au niveau du boîtier de brûleur (4) pour le mélange de gaz combustible avec de l'air primaire, dans lequel la section de mélange (8) est de forme cylindrique et s'étend vers l'extérieur à partir d'une face inférieure (9) du boîtier de brûleur (4), et une buse à gaz (10) disposée au niveau de la section de mélange (8) qui est configurée pour injecter le gaz combustible dans une chambre de mélange (12) de la section de mélange (8), dans lequel la section de mélange (8) comporte au moins une entrée d'air primaire (13) pour l'aspiration de l'air primaire en provenance d'un environnement (14) du brûleur à gaz (1) dans la chambre de mélange (12), dans lequel l'au moins une entrée d'air primaire (13) comprend un élément de guidage (15) qui est configuré pour conduire l'air primaire aspiré dans la chambre de mélange (12) sur le gaz combustible injecté dans la chambre de mélange (12) de telle sorte que l'air primaire se mélange avec le gaz combustible, dans lequel l'élément de guidage (15) comprend un premier bord d'extrémité (16) et un deuxième bord d'extrémité (17), dans lequel l'élément de guidage (15) est incurvé de telle sorte que l'air primaire s'écoule le long de l'élément de guidage (15) du premier bord d'extrémité (16) jusqu'au deuxième bord d'extrémité (17) et que l'élément de guidage (15) passe dans la zone du deuxième bord d'extrémité (17) au niveau de la buse à gaz (10) et dans lequel une perpendiculaire (19) coupe sur une tangente (18) du deuxième bord d'extrémité (17) simultanément un axe médian (20) de la buse à gaz (10) et le deuxième bord d'extrémité (17).
  2. Brûleur à gaz selon la revendication 1, caractérisé en ce que l'élément de guidage (15) est une aube de guidage.
  3. Brûleur à gaz selon la revendication 1 ou la revendication 2, caractérisé en ce que l'élément de guidage (15) est incurvé en forme d'arc au moins par sections.
  4. Brûleur à gaz selon l'une des revendications 1 à 3, caractérisé en ce que la buse à gaz (10) va dans la direction d'une chambre de distribution (7) et en ce que la chambre de distribution (7) est configurée pour distribuer un mélange de gaz combustible et d'air primaire sur des buses de brûleur (6) du brûleur à gaz (1).
  5. Brûleur à gaz selon l'une des revendications 1 à 4, caractérisé en ce que la section de mélange (8) comprend une pluralité d'entrées d'air primaire (13) et en ce qu'un élément de guidage (15) est associé à chaque entrée d'air primaire (13).
  6. Brûleur à gaz selon la revendication 5, caractérisé en ce qu'un deuxième bord d'extrémité (17) d'un élément de guidage (15) va vers un élément de guidage (15) disposé à proximité.
  7. Brûleur à gaz selon la revendication 5 ou la revendication 6, caractérisé en ce que les entrées d'air primaire (13) sont réparties uniformément autour d'une périphérie (u) de la section de mélange (8).
  8. Brûleur à gaz selon l'une des revendications 1 à 7, caractérisé en ce que l'élément de guidage (15) est configuré pour dévier l'air primaire aspiré dans la chambre de mélange (12) de telle sorte que celui-ci soit amené à tourbillonner.
  9. Brûleur à gaz selon l'une des revendications 1 à 8, caractérisé en ce que la buse à gaz (10) est positionnée au milieu d'un fond (11) de la chambre de mélange (12).
  10. Brûleur à gaz selon l'une des revendications 1 à 9, caractérisé en ce que la section de mélange (8) et le boîtier de brûleur (4) sont conçus en plusieurs parties.
  11. Brûleur à gaz selon l'une des revendications 1 à 10, caractérisé par une tête de brûleur (5) disposée au niveau du boîtier de brûleur (4) pour la combustion du gaz combustible mélangé avec l'air primaire.
  12. Brûleur à gaz selon la revendication 11, caractérisé en ce que la tête de brûleur (5) est disposée en aval de la chambre de mélange (12).
  13. Table de cuisson (2) avec un brûleur à gaz selon l'une des revendications 1 à 12.
  14. Cuisinière (3) avec un brûleur à gaz (1) selon l'une des revendications 1 à 12 et/ou une table de cuisson (2) selon la revendication 13.
EP15704382.9A 2014-02-03 2015-02-02 Brûleur à gaz, table de cuisson et foyer Active EP3102878B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES201430127A ES2542346B1 (es) 2014-02-03 2014-02-03 Quemador de gas, punto de coccion, y cocina
PCT/IB2015/050781 WO2015114600A1 (fr) 2014-02-03 2015-02-02 Brûleur à gaz, table de cuisson et foyer

Publications (2)

Publication Number Publication Date
EP3102878A1 EP3102878A1 (fr) 2016-12-14
EP3102878B1 true EP3102878B1 (fr) 2019-04-10

Family

ID=52469874

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15704382.9A Active EP3102878B1 (fr) 2014-02-03 2015-02-02 Brûleur à gaz, table de cuisson et foyer

Country Status (3)

Country Link
EP (1) EP3102878B1 (fr)
ES (1) ES2542346B1 (fr)
WO (1) WO2015114600A1 (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1141977A (fr) * 1955-12-14 1957-09-12 Brûleur tous gaz à mélangeur vertical pour table de cuisson de cuisinières domestiques
US4729734A (en) * 1986-07-18 1988-03-08 Polomchak Robert W Device for improved combustion
US4673350A (en) * 1986-08-26 1987-06-16 Eclipse, Inc. Burner assembly for radiant tube heating system
JPH03109608U (fr) 1990-02-26 1991-11-11
US5380194A (en) * 1992-09-22 1995-01-10 Polomchak; Robert W. Heating device
GB2276715B (en) * 1993-03-29 1995-10-04 Yue Stoves Manufactory Limited Gas burner
TWI257994B (en) * 2004-12-03 2006-07-11 Ind Tech Res Inst Flame generator
PL2072895T3 (pl) * 2007-12-18 2014-12-31 Electrolux Home Products Corp Nv Palnik gazowy z ulepszonym przewodem na powietrze pierwotne

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
WO2015114600A1 (fr) 2015-08-06
ES2542346B1 (es) 2016-05-17
ES2542346A1 (es) 2015-08-04
EP3102878A1 (fr) 2016-12-14

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