EP3686492B1 - Gasbetriebene flammenschale - Google Patents

Gasbetriebene flammenschale Download PDF

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Publication number
EP3686492B1
EP3686492B1 EP20153163.9A EP20153163A EP3686492B1 EP 3686492 B1 EP3686492 B1 EP 3686492B1 EP 20153163 A EP20153163 A EP 20153163A EP 3686492 B1 EP3686492 B1 EP 3686492B1
Authority
EP
European Patent Office
Prior art keywords
burner
flame
gas
gas outlet
reflector
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
EP20153163.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3686492A1 (de
Inventor
Michael Gloger
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.)
Enders Colsman AG
Original Assignee
Enders Colsman AG
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 Enders Colsman AG filed Critical Enders Colsman AG
Priority to PL20153163T priority Critical patent/PL3686492T3/pl
Publication of EP3686492A1 publication Critical patent/EP3686492A1/de
Application granted granted Critical
Publication of EP3686492B1 publication Critical patent/EP3686492B1/de
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
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/70—Baffles or like flow-disturbing devices
    • 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
    • F23D2900/11401—Flame intercepting baffles forming part of burner head

Definitions

  • the invention relates to a gas-operated flame bowl serving to provide a cozy atmosphere, comprising a burner that can be connected to a fuel supply, which burner has a plurality of gas outlet openings from which gas exits when the burner is operated to operate the flame bowl, and means for standardizing the one Operation of the burner.
  • Flame bowls are primarily used to provide a cozy atmosphere. These have a bowl in which a flame is generated. Such flame bowls are addressed, as they often provide a flame image in the manner of a torch, also as fire bowls.
  • flame bowls in which the flames are generated by burning wood, wax or other fuels, flame bowls are also known which have a burner that is connected to a fuel supply. In many cases the flame generation, for example the burner, is blinded by lava stones, glass stones, pebbles or the like or ceramic molded parts, sometimes based on logs with regard to their shape. These are located in the center of the shell. These objects in the center of the bowl not only cover the burner, but also spread the flame pattern over a larger area.
  • the flames lick on a larger area from these for the parts intended as facing.
  • a distribution of the gas emerging from the gas outlet openings of the burner takes place via such a bed formed, for example, from lava stones, whereby a uniform flame pattern is generated. If the burner is operated without such a gas distribution bed, for example made of lava stones, as is the case with burner heads of gas grills or Cooking areas are known to produce a large number of individual smaller flames. A uniform, coherent flame pattern then does not result.
  • thermocouple is also arranged between the components of such a gas distribution bed as a gas escape safety device. This must be exposed to a flame so that the flame bowl can work as intended. If this is not the case, the flame bowl cannot be operated because the thermocouple then does not enable the gas supply.
  • the thermocouple itself should not protrude from such a gas distribution bed made up of lava stones, for example, and is therefore masked by lava stones that are appropriately placed manually.
  • thermocouple As a result of a vibration caused by an unintentional impact, however, the arrangement of the lava stones in the gas distribution bed can change and, under certain circumstances, prevent the thermocouple from being fired. Due to such a gas distribution bed, such flame trays are also not suitable for mobile use, since the gas distribution bed then has to be redesigned each time the flame tray is set up and set up for proper operation in relation to the thermocouple. Protective cages for the thermocouple are not used. This would affect the placement of the components of the gas distribution bed. Therefore, such a flame bowl is not suitable, for example, for camping or for furnishing and decorating event locations.
  • a gas-powered hob is known. This has an infrared burner which is arranged below a grate. Between the grate and the infrared burner there is a nozzle disc with nozzle openings through which the hot combustion gases generated by the infrared burner pass. These are used to heat the underside of a cooking vessel placed on the grate. In addition, the nozzle disc is permeable to infrared radiation. Flames are not visible to a user on this hotplate.
  • US 2011/0244405 A1 describes a low NOx burner as part of a hot water maker. This burner is not visible. The burner itself has a component arranged above a circumferential arrangement of gas outlet openings with which the flames are pressed downwards.
  • This hotplate has a similar structure to the one from US 2011/0244405 A1 built-up burner, however, in contrast to this burner, a component covering the flames is provided on the outside circumferentially.
  • US 2004/0152028 A1 discloses a flameless infrared heater.
  • a burner is located within a reflector, the exit side of which is closed by an infrared-permeable cover. Flames cannot be seen on this device.
  • the invention is therefore based on the object of developing a flame bowl of the type mentioned at the beginning in such a way that, despite the provision of a gas-operated burner with a large number of gas outlet openings, a uniform, closed flame pattern is established during operation without that the disadvantages described for the prior art a gas distribution bed, provided for example by a bed of lava stones, must be accepted.
  • the at least one burner is part of a burner unit which, in addition to the burner, has a gas outlet guide component.
  • a gas outlet directing component has at least one gas directing surface.
  • the gas deflection surface runs in a direction transverse to the outflow direction of the partial gas flows from the gas outlet openings.
  • the alignment of the plane of the gas guide surface does not need to be arranged in the narrower sense of the word transversely to the outflow direction of the partial gas flows. An arrangement provided with a different angle is also possible.
  • the gas outlet guiding component with its gas guiding surface provides a baffle surface for the or at least a majority of the partial gas flows exiting the gas outlet openings, on which the partial gas flows exiting the burner are deflected with respect to their flow direction.
  • the flame is only formed after the gas has changed its flow direction at the deflector surface formed by the gas deflection surface. Due to the flow path before the flame formation and the turbulence caused by the gas deflection, the exiting gas partial flows are brought together before the flame formation, so that a uniform flame pattern is generated at the location of the flame formation or at a short distance from it when the flame bowl is in operation.
  • a burner known per se from a gas-powered hob can be used to generate the flame, even if only a number of individual flames corresponding to the number of gas outlet openings and not a coherent, uniform flame can be generated from this when operated without such a gas outlet control component.
  • the gas outlet guiding component is typically an annular body whose gas guiding surface is arranged at a certain distance in front of the gas outlet openings. If the burner is designed with an angular outline geometry, the gas outlet guiding component is designed with a correspondingly angular, annular geometry.
  • the burner of such a gas-operated flame bowl can also be realized by a tubular burner known per se from gas grills, regardless of whether the gas outlet openings of such a burner tube are arranged laterally with respect to the central longitudinal plane of such a burner tube or in the area of the upper apex.
  • the gas outlet openings of the burner are covered on the outside by the gas outlet guiding component, which allows a configuration that the upper end of the burner can no longer be seen in a side view.
  • the at least one gas control component serves not only to combine the numerous partial gas flows and a later flame formation with regard to the outlet openings of the burner compared to operation without a gas outlet guide component, but also to prevent the burner as such in a shell body as part of the flame shell or almost not as to let such appear.
  • thermocouple required for the operation of such a gas-powered flame bowl is typically located in the narrow point of the gap described above.
  • this gas-powered flame bowl provides a uniform, coherent flame pattern without the burner having to be provided with a gas distribution bed made of lava stones, for example. It goes without saying that the bottom of such a flame bowl or the gas outlet gap between the burner and the gas outlet guiding component can be covered by additional flame-resistant objects placed on it. In contrast to previously known flame shells, this is not necessary in order to be able to generate the desired flame pattern.
  • a further improvement in the operation of such a flame bowl can be achieved in that the gas outlet guiding component has, adjacent to its gas guiding surface, a stub that protrudes in the direction of the burner over the gas guiding surface and which is arranged above the gas outlet openings in relation to the height of the burner unit.
  • a gas outlet guiding component is designed as an angle piece on its side facing the burner, the leg providing the gas guiding surface typically being longer than the part forming the stirrup.
  • the protruding stirrup in the direction of the burner causes a certain congestion of the gas flow emerging from the individual gas outlet openings, which in turn serves to merge or homogenize the individual gas partial flows. At the same time, this can create a bottleneck through which the gas flow is accelerated to a certain extent.
  • such a swivel can be used to at least partially mask the ignition device and a thermocouple that interacts with the ignition. Consequently, these do not appear and do not impair, at least not in a noteworthy manner, the aesthetic appearance of the flame bowl in the area of the upper end of the burner unit.
  • An optically apparent flame enlargement can be achieved with this flame bowl in that it has at least one reflector with a surface finish for reflecting the flame, which is arranged laterally on the outside with respect to the generated flame. Due to the reflector with its reflection surface and the lateral arrangement of the same with respect to the generated flame, the flame emitted by the burner is reflected and thus the appearance of the flame - the flame image that appears to a viewer - is at least partially multiplied and thus the flame image as a whole is enlarged.
  • the nature of the reflective surface of the reflector can influence the type of reflection.
  • the surface of the reflector can be designed as a high-gloss, reflective surface.
  • the structure of the reflection surface can be designed so that the reflection has a certain blurring or diffusivity. This does not affect a reflection of the dancing of the flame, but due to the diffusivity it can give the impression that the reflected flame image appears somewhat larger.
  • the term used in the context of these explanations of the lateral arrangement of the reflector in relation to the flame generated by the burner is understood to mean an arrangement of the reflector which, starting from the center of the flame, is arranged on the outside of the latter, the reflector also being arranged below the flame can be.
  • the reflector Due to the arrangement of the reflector, which naturally has a flat extension, the reflection of the flame is from different viewing directions and thus from different points of view on the user side perceptible.
  • the reflector will be designed in such a way that the flame reflection is preferably visible on its entire useful side and thus the appearance of the flame is enlarged.
  • the reflector In the case of stand-alone flame bowls, the reflector will generally be arranged in a ring around the burner. The desired flame reflections can then be perceived from each side.
  • Such a reflector has a flame opening in or below which the burner is arranged.
  • the reflector is connected to the gas outlet guiding component.
  • the storage area provided by this can be formed by the underside of the edge regions of the reflector that form the flame opening.
  • the design of such a reflector can be designed differently.
  • the reflector is recessed in the manner of a shell, the flame opening with the burner located therein or below being arranged in the region of the deepest part of the reflector.
  • the reflector at least partially surrounds the flame provided by the burner, and consequently extends around it over an angular amount.
  • the reflector can completely surround the flame generated by the burner. If the reflector is in the form of a shell or a shell segment and thus with a recess within which the flame generated by the burner is designed, its reflection surface acts due to the curvature in the manner of a concave mirror to a further enlargement of the emerging flame image.
  • the burner can be arranged in the center of such a reflector, which is typically designed like a shell. An eccentric arrangement of the burner is also possible if the flame bowl should not be viewed from all circumferential directions.
  • a flame bowl 1 is placed on a gas cylinder container 2, thus forming its upper end.
  • the gas bottle holder 2 has a door, Via which a gas cylinder can be inserted into the interior of the gas cylinder container 2 and also removed from it.
  • the flame bowl 1 has a cylindrical bowl body 3, in the center of which a burner 4 is arranged as part of a burner unit.
  • the burner 4 is of the type known per se from gas stoves. With the burner 4, a flame is generated when the flame cup 1 is in operation.
  • a concave reflector 5 is arranged inside the shell body 3.
  • the reflector 5 has an opening 6 in its center, into which the burner 4 protrudes.
  • the reflector 5 extends up to the side wall 7 enclosing the interior of the shell body 3.
  • the flame surround 9 is a ring cylinder piece in the illustrated embodiment.
  • the flame surround is translucent.
  • the lower end of the flame surround 9 is located above the reflector 5 and at a distance from the upper end 10 of the circumferential side wall 7.
  • a special feature of the flame cup 1 is that the reflector 5 has a surface finish for reflecting the flame 11 generated when the burner 4 is in operation.
  • the surface of the reflector 5 is shiny and brass-colored. This coloring of the reflection surface of the reflector 5 influences the color temperature of the reflected flame image.
  • the structure of the flame bowl 1 is also shown in the cross section of FIG Figure 2 recognizable.
  • the sectional view of the Figure 2 the spacing of the lower end of the flame surround 9 from the upper end 10 of the annular side wall 7, whereby the lower end of the flame surround 9 is also spaced from the reflector 5 accordingly.
  • the reflector 5 is like from Figure 2 recognizable, curved like a concave mirror. Flames 12 emerging from the burner 4 are optically reflected on the reflection surface of the reflector 5, as a result of which the appearing flame image is correspondingly larger for a user.
  • the flame bowl 1 is located in a Height of about 70 to 80 cm.
  • the arrangement of the flame bowl 1 on the gas cylinder container 2 is therefore suitable for viewing the flame image, in particular in a standing position. Since the reflector 5 surrounds the burner 4 over its entire circumferential extent, the flame reflection described above can be perceived from any position in relation to the circumference of the flame bowl 1.
  • the burner 4 which is designed in the manner of a hotplate of a gas stove, is part of a burner unit which, in addition to the burner 4, has a gas outlet guiding component 12.
  • the gas outlet steering component 12 is guided as an annular body and summarizes, as from the Figures 2 and 3 recognizable, the burner 4 on.
  • the gas outlet guiding component 12 of the illustrated embodiment is designed as an angle piece, the longer leg 13 of which forms a gas guiding surface 14 on its side facing the burner 4.
  • the height of the leg 13 in the in Figure 3 The recognizable vertical direction is greater than the height occupied by the burner 4 above the bottom 15 of the shell body 3.
  • the lower end face of the gas outlet guide component 12 is connected to the bottom 15 of the shell body 3.
  • the burner 4 is blinded laterally with respect to its entire height.
  • the burner 4 has a plurality of radial gas outlet openings 16 which are arranged at a distance from one another and from which gas flows out in the radial direction when the flame bowl 1 is in operation.
  • the extension of the leg 13 of the gas outlet guiding component 12 runs transversely to the outflow direction of the gas flowing out of the gas outlet openings 16 in partial gas flows.
  • the shorter leg of the gas outlet guiding component 12 forms a swivel body 17. This protrudes in the direction of the burner 4 over the gas guiding surface 14 of the leg 13.
  • the circumferential stirrup 17 with the burner 4 encloses a gas outlet gap 18, whose in Figure 3 The apparent clear width is less than the radial distance between the outer mouths of the gas outlet openings 16 and the gas deflecting surface 14.
  • the cavity located below the swivel leg 17 is closed on the underside by the bottom 15 of the shell body 3.
  • the circumferential gas outlet gap 18 provides a narrow point in which the partial gas flows homogenized at the gas outlet guide component 12 as a uniform gas flow be accelerated. In addition, this acceleration also contributes to a further homogenization of the partial gas flows.
  • the ignition and the thermocouple required for the operation of the burner 4 are located within the gas outlet gap 18, concealed by the stirrup 17.
  • the burner unit When the flame bowl 1 is in operation, the burner unit thus produces a uniform flame in the manner of a torch, as in FIG Figure 2 shown schematically, generated.
  • the burner 4 is operated with a lower proportion of oxygen in the gas-air mixture in order to generate a yellow-colored flame 11. Moreover, when the burner 4 is operated in this way, the height of the flame 11 generated is somewhat greater.
  • the reflector 5 is supported with the edge regions of its flame opening 6 on the flap 17 of the gas outlet guiding component 12.
  • a thermal insulation 19 is located between the reflector 5 and the thimbles 17.
  • the end face of the reflector 5 enclosing the opening 6 and the end face of the thimbles 17 facing inward in the radial direction are flush with one another.
  • the burner 4 is countersunk with respect to the reflection surface of the reflector 5.
  • a flame bowl 1.1 which is basically constructed like the flame bowl 1, the reflector 5 is supported on a retaining limb 20 formed on the radially outer side with respect to the limb 13 of the gas outlet steering component 12.
  • This embodiment is in Figure 4 shown.
  • the same elements or components that this flame cup 1.1 has as well as the flame cup 1 are identified therein with the same reference numerals.
  • the burner 4 is blinded to the side, specifically by the ring-shaped gas outlet guiding component 12.
  • FIG. 5 shows the burner unit of a further flame bowl in a schematic cross section, without the further components of the flame bowl being shown in detail.
  • the burner 4.1 is a pipe section in which the gas outlet openings 16.1 are arranged laterally.
  • a plurality of gas outlet openings 16.1 arranged adjacent to one another are located on each side.
  • the gas outlet openings 16.1 arranged on both sides of the burner 4.1 are arranged mirror-symmetrically to the vertical central longitudinal plane of the burner 4.
  • this burner unit has two gas outlet guide components 12.1, 12.2, one of the two gas outlet guide components 12.1 at the in Figure 5
  • the left side of the burner 4.1 shown and the other gas outlet steering component 12.2 is arranged on the right side of the burner 4.1.
  • the gas outlet steering components 12.1, 12.2 are constructed like the gas outlet steering component 12 of the flame bowl 1. Therefore, the relevant statements apply equally to the two gas outlet steering components 12.1, 12.2 of the embodiment of the burner unit in FIG Figure 5 .
  • FIG Figure 6 Yet another embodiment of a burner unit is shown in a schematic cross section in FIG Figure 6 shown.
  • This burner unit also has a burner tube as burner 4.2, which, however, in contrast to the burner 4.1, has gas outlet openings 16.2 in the area of its upper apex.
  • the gas outlet guiding component 12.3 is provided by a bar, the flat side of which is arranged above the burner 4.2, facing the gas outlet openings 16.2, to provide a baffle surface.
  • the underside of this bar represents the gas guide surface 14.1.
  • the gas outlet guide component 12.3 is left on two bar-shaped, vertically aligned side guide components 21, 21.1 each of a gas outlet gap 18.1, 18.2 connected on each side.
  • the side guide components 21, 21.1 are held on the side surfaces of the burner 4.2.
  • FIG Figure 7 shows a further embodiment of a flame bowl 1.2, which is designed in principle like the flame bowls 1 or 1.1.
  • the gas outlet openings 16.3 are arranged on the top with respect to the burner 4.3, as is the case with the embodiment of FIG Figure 6 is shown.
  • the gas outlet guiding component 12.4 is located above the gas outlet openings 16.3 with its flat side in the plane above the burner 4.3.
  • the partial gas flows emerging from the gas outlet openings 16.3 are deflected on its gas deflection surface 14.2 in the same way as this in principle for the exemplary embodiment in FIG Figure 6 is described.
  • the gas outlet guiding component 12.4 is held on an annular body 22 enclosing the burner 4.3 with several, for example three or four, webs (not shown in the figure).
  • the gas outlet gap 18.3, which is ring-shaped in this exemplary embodiment, is located between the gas outlet guiding component 12.4 and an inwardly protruding leg 23 as part of the annular body 22 and the gas guiding component 12.4.
  • the flames arise in the gas outlet gap 18.3.
  • the ignition and the thermocouple are therefore also located within this.
  • the reflector 5.1 has a section that blinds the upper side of the gas outlet guiding component 12.4, so that the appearance of the area of the burner unit of the flame bowl 1.2 is not impaired by looking at or looking at the burner. Only the annular gas outlet gap 18.3 can be seen. A ring flame is generated.

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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)
EP20153163.9A 2019-01-28 2020-01-22 Gasbetriebene flammenschale Active EP3686492B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL20153163T PL3686492T3 (pl) 2019-01-28 2020-01-22 Gazowa misa płomieniowa

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202019100482.7U DE202019100482U1 (de) 2019-01-28 2019-01-28 Gasbetriebene Flammenschale

Publications (2)

Publication Number Publication Date
EP3686492A1 EP3686492A1 (de) 2020-07-29
EP3686492B1 true EP3686492B1 (de) 2021-07-14

Family

ID=65441819

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20153163.9A Active EP3686492B1 (de) 2019-01-28 2020-01-22 Gasbetriebene flammenschale

Country Status (5)

Country Link
EP (1) EP3686492B1 (pl)
DE (1) DE202019100482U1 (pl)
DK (1) DK3686492T3 (pl)
ES (1) ES2889758T3 (pl)
PL (1) PL3686492T3 (pl)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019134668B3 (de) * 2019-12-17 2021-03-25 Marc Büschgens Feuersäule zum Verbrennen von Brennmaterialien

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4569328A (en) * 1984-05-02 1986-02-11 Gas Research Institute Efficient, low emissions gas range cooktop
US20040152028A1 (en) * 2003-02-05 2004-08-05 Singh Prem C. Flame-less infrared heater
DE102008017398A1 (de) * 2008-04-03 2009-10-08 BSH Bosch und Siemens Hausgeräte GmbH Top sheet für ein Gaskochfeld, sowie Gaskochfeld
US20110244405A1 (en) * 2010-04-01 2011-10-06 John Hucsko Low nox burner for a water heater
FR3022614B1 (fr) * 2014-06-19 2017-03-10 Applic Gaz Sa Rechaud a gaz comprenant un systeme d’allumage pour deux bruleurs

Also Published As

Publication number Publication date
DE202019100482U1 (de) 2019-02-06
DK3686492T3 (da) 2021-09-20
PL3686492T3 (pl) 2021-12-20
EP3686492A1 (de) 2020-07-29
ES2889758T3 (es) 2022-01-13

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