EP2839215B1 - Brenner für ein gasbeheiztes gargerät - Google Patents

Brenner für ein gasbeheiztes gargerät Download PDF

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Publication number
EP2839215B1
EP2839215B1 EP13726022.0A EP13726022A EP2839215B1 EP 2839215 B1 EP2839215 B1 EP 2839215B1 EP 13726022 A EP13726022 A EP 13726022A EP 2839215 B1 EP2839215 B1 EP 2839215B1
Authority
EP
European Patent Office
Prior art keywords
burner
pipe
gas
burner according
wire
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
EP13726022.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2839215A2 (de
Inventor
Luis Acosta Herrero
Ainhoa De Carlos Negro
Pedro Herrera Estrada
Luis Antonio Palacios Valdueza
Emilio Placer Maruri
Sara TRIGUEROS PRECIADO
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 EP2839215A2 publication Critical patent/EP2839215A2/de
Application granted granted Critical
Publication of EP2839215B1 publication Critical patent/EP2839215B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/08—Arrangement or mounting of burners
    • 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
    • F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • 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
    • F24C15/00—Details
    • F24C15/10—Tops, e.g. hot plates; Rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/08—Arrangement or mounting of burners
    • F24C3/085—Arrangement or mounting of burners on ranges

Definitions

  • the present invention relates to a burner for a gas-heated cooking appliance.
  • a burner for a gas-heated cooking appliance is, for example, from the WO 2006/077058 A1 known.
  • the burner includes a tube for mixing fuel gas with primary air.
  • the EP 2 072 895 A1 describes a gas burner comprising a deflecting element which is arranged in a primary air supply line of the gas burner.
  • the deflecting element is designed to swirl the primary air.
  • the WO 83/00913 A1 describes a gas burner comprising several burner nozzles.
  • the burner nozzles are inclined towards each other at different angles.
  • the US 2006/0000467 A1 describes a burner for a gas-heated cooking appliance with a lid, a nozzle, a tube for mixing fuel grass with primary air and a deflection element which is arranged in the nozzle.
  • the U.S. 4,686,957 A describes a gas burner.
  • the gas burner comprises a tube into which a nozzle protrudes. With the help of the nozzle, fuel gas is injected into the pipe.
  • the tube acts as a venturi tube, which entrains primary air into the tube.
  • the tube includes inside ribs that run along a longitudinal direction of the tube.
  • the object of the present invention is to provide an improved burner for a gas-heated cooking appliance which is characterized in particular by high efficiency.
  • deflection element means an element which is set up to deflect the fuel gas, the primary air or both. The deflection takes place in particular with respect to the main inflow direction of the fuel gas, the primary air or the mixture of these.
  • the main inflow direction can correspond to the longitudinal direction of the pipe.
  • Longitudinal direction” of the pipe means the direction of the pipe in which it has an essentially constant cross section.
  • the deflecting element is designed in the shape of a cross. It has been found that particularly large increases in the energy efficiency of the burner are possible with a cross-shaped element.
  • the wire piece has a diameter of between 0 and 3 mm, preferably between 1 and 2 mm and more preferably between 1.3 and 1.7 mm. Especially for the values between 1.3 and 1.7 mm, particularly large increases in energy efficiency of the burner can be achieved.
  • the piece of wire is made of metal or plastic.
  • the piece of wire can be formed in one piece with the tube.
  • “One-piece” means that the tube and the piece of wire are formed from one and the same material and in one piece.
  • the piece of wire can also be fastened in the tube in a form-fitting, non-positive or material fit.
  • the tube has an inner wall to which the wire piece is connected at its respective ends. This allows the piece of wire to be easily attached in the pipe.
  • the nozzle is arranged at a distance from one end of the tube. As a result, primary air can be sucked into the flow of fuel gas emerging from the nozzle and into one end of the pipe.
  • the other end of the tube opens into a space below the cover, which is radially connected to the environment via flame outlet openings.
  • the tube extends in the vertical direction. The gas mixture emerging from the pipe into the room is then deflected in the horizontal direction below the cover.
  • the nozzle is part of a lower part.
  • the tube can be part of an upper part. Together, the lower part and the upper part form a base.
  • the lid can be placed on the upper part.
  • the cover can define flame outlet openings with the upper part.
  • the lower part has a chamber which is open on one side and into which the tube extends.
  • the chamber is in turn connected to openings for supplying the primary air from the environment into the chamber.
  • the space below the cover is formed between the upper part and the cover.
  • the burner is set up for household use. That is, the gas-heated cooking appliance is designed as a household appliance.
  • Fig. 1 shows a perspective view of a section through a burner 1 according to an embodiment.
  • the burner 1 is, for example, part of a gas-heated cooking appliance in the form of a schematically indicated gas hob 2.
  • the gas hob 2 is set up for use in the household.
  • the burner 1 comprises a lower part 3 and an upper part 4.
  • the lower and upper part 3, 4 together form a base 5 of the burner 1.
  • a cover 6 is placed on the upper part 4.
  • the lower part 3 comprises a chamber 7, at the bottom of which a nozzle 11 is arranged.
  • the nozzle 11 is connected to a gas supply line (not shown) via a gas connection 12 of the lower part 3.
  • the upper part 4 comprises a plate 13 from which a tube 14 protrudes downward.
  • the tube 14 is directed at its one end 15 towards the nozzle 11 and is designed to be open in relation to this.
  • the tube 14 is formed in one piece with the plate 13 and has an opening towards a space 17 defined between the cover 6 and the plate 13.
  • Fig. 2 shows the burner in perspective Fig. 1 , but with the cover removed 6.
  • the plate 13 has flame outlet openings 21 on its periphery, which it defines entirely together with the cover 6.
  • the flame outlet openings 21 connect the space 17 (see Fig. 1 ) with the environment 22.
  • a deflection element 23 can be seen in each case, which is arranged in the interior space 24 delimited by the tube 14.
  • the deflection element 23 is designed, for example, in the form of a wire cross.
  • FIG. 3 shows the deflector 23 from FIG Figures 1 and 2 in a top view.
  • the deflecting element 23 comprises two pieces of wire 25, 26 made of metal, which are connected to one another in the middle.
  • the wire pieces 25, 26 can be formed in one piece.
  • the wire pieces 25, 26 can be arranged at an angle of 90 ° to one another.
  • the wire pieces 25, 26 are firmly connected at their respective ends 27 to the inner wall 31 of the tube 14.
  • the deflecting element 23 can also be formed in one piece with the inner wall 31.
  • a respective piece of wire 25, 26 has a diameter 32 of, for example, 1.5 mm.
  • the diameter 33 of the inner wall 31 is 11.4 mm, for example. This diameter 33 corresponds to the outer diameter of the deflection element 23.
  • Fig. 4 shows the cut Fig. 1 in a top view.
  • the deflecting element 23 is arranged centrally between the ends 15, 16 of the tube 14.
  • the correspondingly equal distances of the deflecting element 23 from the respective ends 15, 16 are shown in FIG Fig. 4 denoted by 35.
  • the deflecting element 23 could also be arranged closer to the end 15.
  • the tube 14 can, as in Fig. 4 shown, have a tapering cross section in the direction of the cover 6.
  • the inside diameter of the tube 14 in the region of the end 15 can be between 11.8 and 12.2 mm. In the area of the end 16, however, the inside diameter of the tube 14 can only be between 10.8 and 11.2 mm.
  • Fuel gas 28 flowing out of the nozzle 11 in the longitudinal direction 34 of the pipe 14 (see FIG Fig. 1 ) is mixed with primary air 29 in the tube 14.
  • the primary air 29 enters the end 15 of the tube 14 via a radial gap 30 between the end 15 and the nozzle 11.
  • the mixing of the fuel gas 28 with the primary air 29 is considerably improved by the deflecting element 23.
  • Fig. 5 shows a diagram of energy efficiency.
  • the white bar shows the measured energy efficiency for burner 1 according to FIG Figures 1-4 without the deflector 23.
  • the energy efficiency was 54.3%.
  • the energy efficiency of the burner 1 was determined with the deflection element 23, see hatched bar.
  • the energy efficiency was surprisingly 59.7%, that is 5.4% above the embodiment without deflection element 23.
EP13726022.0A 2012-04-20 2013-04-10 Brenner für ein gasbeheiztes gargerät Active EP2839215B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102012206507A DE102012206507A1 (de) 2012-04-20 2012-04-20 Brenner für ein gasbeheiztes Gargerät
ES201231672A ES2426318R1 (es) 2012-04-20 2012-10-31 Quemador para un aparato de cocción calentado a gas
PCT/IB2013/052850 WO2013156902A2 (de) 2012-04-20 2013-04-10 Brenner für ein gasbeheiztes gargerät

Publications (2)

Publication Number Publication Date
EP2839215A2 EP2839215A2 (de) 2015-02-25
EP2839215B1 true EP2839215B1 (de) 2021-06-30

Family

ID=49290168

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13726022.0A Active EP2839215B1 (de) 2012-04-20 2013-04-10 Brenner für ein gasbeheiztes gargerät

Country Status (6)

Country Link
US (1) US10317086B2 (es)
EP (1) EP2839215B1 (es)
CN (1) CN104246368B (es)
DE (1) DE102012206507A1 (es)
ES (2) ES2426318R1 (es)
WO (1) WO2013156902A2 (es)

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ES2733832T3 (es) * 2015-02-11 2019-12-03 Electrolux Appliances AB Unidad de quemador de gas
CN105864768B (zh) * 2016-05-26 2018-12-11 深圳市人人节能设备有限公司 一种鼓风式恒压预混及多孔独立式燃烧节能装置
US10697641B2 (en) 2016-12-19 2020-06-30 Whirlpool Corporation Orifice holder mounting system for gas cooktop
US11085645B2 (en) * 2018-05-31 2021-08-10 Haier Us Appliance Solutions, Inc. Eductor for a gas cooktop appliance

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Also Published As

Publication number Publication date
ES2426318R1 (es) 2014-01-23
ES2426318A2 (es) 2013-10-22
CN104246368A (zh) 2014-12-24
DE102012206507A1 (de) 2013-10-24
US10317086B2 (en) 2019-06-11
WO2013156902A2 (de) 2013-10-24
CN104246368B (zh) 2017-05-31
US20150090249A1 (en) 2015-04-02
ES2887216T3 (es) 2021-12-22
WO2013156902A3 (de) 2014-02-06
EP2839215A2 (de) 2015-02-25

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