EP3045810B1 - Procédé destiné au fonctionnement d'un champ de cuisson au gaz avec un brûleur à gaz - Google Patents

Procédé destiné au fonctionnement d'un champ de cuisson au gaz avec un brûleur à gaz Download PDF

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Publication number
EP3045810B1
EP3045810B1 EP16156130.3A EP16156130A EP3045810B1 EP 3045810 B1 EP3045810 B1 EP 3045810B1 EP 16156130 A EP16156130 A EP 16156130A EP 3045810 B1 EP3045810 B1 EP 3045810B1
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EP
European Patent Office
Prior art keywords
gas
gas burner
thermogenerator
pot
burner body
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.)
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Application number
EP16156130.3A
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German (de)
English (en)
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EP3045810A1 (fr
Inventor
Martin Baier
Norbert Gärtner
Michael Riffel
Uwe Schaumann
Konrad SCHÖNEMANN
Wilfried Schilling
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.)
EGO Elektro Geratebau GmbH
Original Assignee
EGO Elektro Geratebau GmbH
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Publication of EP3045810A1 publication Critical patent/EP3045810A1/fr
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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
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • 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
    • 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
    • F24C3/12—Arrangement or mounting of control or safety devices
    • F24C3/126—Arrangement or mounting of control or safety devices on ranges
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M2900/00—Special features of, or arrangements for combustion chambers
    • F23M2900/13003—Energy recovery by thermoelectric elements, e.g. by Peltier/Seebeck effect, arranged in the combustion plant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2231/00—Fail safe
    • F23N2231/04—Fail safe for electrical power failures

Definitions

  • the invention relates to a method for operating a gas hob with at least one gas burner.
  • Thermal generators per se are known for generating electrical energy.
  • a hot side of the thermogenerator is heated or heated, while on a cold side, the heat is removed or discharged.
  • an efficiency of such a thermogenerator is usually only 3% to 5%, considerably more thermal energy has to be conducted through the thermogenerator than electrical energy is obtained.
  • sufficient thermal energy is available in many applications. From the DE 10 2007 058 945 A1 It is known to install a thermogenerator on a gas burner in a gas hob. There the thermal energy, which is passed through the thermogenerator, is dissipated against the gas hob. The cold side of the thermogenerator thus goes against the gas hob, which is heated on the one hand, which is negative. Furthermore, this thermal energy is lost to the cooking process.
  • US 5945017 discloses a method having the features of the preamble of claim 1.
  • the invention has for its object to provide an aforementioned method for operating a gas hob, with which problems of the prior art can be avoided and in particular created an efficient and structurally simple way is to generate by means of a thermogenerator electrical energy to a gas burner of a gas hob.
  • thermogenerator arranged above it.
  • the thermogenerator may be arranged particularly advantageously concentric with the gas burner body and / or have the same shape or the same or similar size. This makes it possible that the thermal generator is acted upon at its hot side with thermal energy from the gas burner body itself, which would otherwise be introduced upwards into a cooking vessel positioned above the gas burner.
  • the cold side of the thermogenerator is cooled, so to speak, by this cooking vessel. This is done either by radiating the heat to the overlying bottom of the pot or, in a preferred embodiment of the invention, characterized in that the thermal generator rests with the cold side to the bottom of the pot. This can be achieved particularly preferably by yielding or resilient holding means which hold the thermogenerator above the gas burner body and, in particular, press against the underside of the cooking vessel.
  • thermogenerator can very well absorb the thermal energy.
  • a spring device provided for this purpose which can be designed in many ways, but advantageously for temperature resistance consists of metal and thus may be formed, for example, as a plate spring or coil spring may be provided in the gas burner body at its top.
  • thermogenerator is disk-shaped, wherein its diameter is considerably larger than its thickness or height.
  • the thermal generator is arranged approximately parallel to the plane of the gas burner openings. This then usually means that it is arranged parallel to a pot bottom, which is especially advantageous for its good investment.
  • the thermal generator is designed to be larger than the gas burner body or laterally beyond this.
  • the gas flames emerging from the gas outlet openings can be at least partially used for heating the thermal generator on its hot side, so that the coupling of the thermal energy takes place very well. If the thermogenerator is very close to its hot side at the top of the gas burner body, then the transition of the thermal energy is also very well possible and it can be achieved that even this is enough without the gas flame would have to reach directly to the thermogenerator ,
  • a lower first heat-conducting element can be arranged between the gas burner or the gas burner body and the thermogenerator. This is advantageously also disk-shaped and arranged so that it is arranged approximately parallel to the plane of the gas burner openings, that is preferably also parallel to the thermal generator, and at a distance therefrom is.
  • the first heat-conducting element should rest directly on the hot side of the thermogenerator for the best possible initiation of the thermal energy.
  • the first heat-conducting element can also be larger than the gas burner body, as has been described above for a possible embodiment of the thermal generator, so that the gas flames heat the heat-conducting element directly.
  • the lower first heat conducting element can capture, as it were, a part of the thermal energy and give it to the thermogenerator, which is generated by the gas burner by means of the gas flames, so as to heat the raised pot on its bottom of the pot.
  • the lower first heat-conducting element has holes and / or recesses in its edge region in the manner of incisions with projections located therebetween.
  • Such an edge of the first heat-conducting element may be formed substantially like a gear. This can serve to ensure that the protruding projections are, so to speak, heated particularly strongly by the gas flames running underneath.
  • the holes or recesses may lie above the gas flames, so that they can burn substantially between the projections and, as a side effect, heat the projections. This ensures that a large part of the thermal energy generated by the gas burner is coupled into the bottom of the pot.
  • the projections lie directly above the gas flames or the gas burner openings forming these. However, you should only survive so far laterally over the gas burner body that only small gas flames corresponding to a low power level, the projections are heated strongly for a sufficient coupling of thermal energy in the thermogenerator at this low power level. If a higher power level is selected, the gas flames burn stronger or become longer and reach far beyond the projections, which are then still heated. However, then a large part of the thermal energy generated by the gas flames goes as desired in the bottom of the pot.
  • yet another embodiment of the invention may be provided above or at the top of the thermal generator, ie on the cold side, another upper second heat conducting element.
  • This is particularly advantageous also disk-shaped as well as the thermogenerator or as the above-described first heat conduction. It may advantageously also be about as large as the thermogenerator itself, alternatively again slightly larger, similar to the first heat-conducting element.
  • the upper second heat-conducting element should not be too large, so that the gas flames generated by the gas burner can still provide sufficient and rapid heating of the pan bottom.
  • the second heat-conducting element also serves to better conduct heat, this time away from the thermal generator to the bottom of the pot.
  • this is a so-called single-burner with a single gas burner body and a single grouping of gas burner openings therein, which are provided as usual annular on its outer periphery.
  • a spring device can advantageously also be provided on a removable cover of a gas burner body, for example also as a structural unit together with the thermal generator itself.
  • this assembly from cover for the gas burner body, optionally with a spring and the thermogenerator and possibly including the above-described heat conduction, recognized and be taken off.
  • This is advantageous if provided for the gas hob according to the invention, only a single such unit should be for cost reasons, so that it is then used in each case on the gas burner to be operated.
  • the gas burner is designed as a dual-circuit burner. It has an inner gas burner body and an outer gas burner body.
  • the thermal generator is arranged above the inner gas burner body, since this is usually always in operation when the gas burner is working.
  • a gas flame is not controllably formed on the inner gas burner body, but always works with such a designed thermal power that the thermal generator generates a required electrical power.
  • a gas flame is controllably formed on the outer gas burner body, so that in the event that work is to be carried out with a power exceeding the thermal output of the first inner gas burner body, the second outer gas burner body is switched on, so to speak.
  • thermogenerator during operation of this dual-circuit burner and thus the required electrical power is generated.
  • the operation with a minimum thermal power on the gas burner body also applies to the above-described single-burner burner.
  • thermogenerator itself as a pot carrier or as part of such a pot carrier.
  • the thermogenerator can be arranged immovably in the vertical direction on the gas burner, so that it is just stable to put on a pot.
  • the thermogenerator is arranged centrally above the gas burner body and has outgoing connections to supports on the gas hob below, advantageously three for a secure state.
  • the thermogenerator to the other parts of the pot carrier thermally be as well insulated as possible, so that the thermal energy to be taken on the cold side is introduced as possible into the pot.
  • too much thermal energy is withdrawn from the heating process of the pot.
  • the thermal generator can advantageously be designed to be detachable on its own or as a structural unit together with a part of the gas burner body, such as its lid. This is possible on the one hand for a case in which it is not needed at all, for example because the gas hob is connected to a power grid. Furthermore, it can thus be achieved above all that not every gas burner of a gas hob should be provided with such a heat generator, but less or particularly advantageously only a single one.
  • the thermal generator has an electrical connection to a power supply of the gas hob.
  • This should be designed to be thermally resistant enough to be guided advantageous laterally away from the thermogenerator down to the gas hob. Since it is inevitably hit by the gas flames of the gas burner, it is important to ensure sufficient thermal insulation. For one thing, she should cross the gas flame as far as possible above it.
  • electrical and thermal insulation can have a glass fiber fabric and plastic or the like. dispense or only highly heat-resistant plastic such as silicone or the like. exhibit.
  • the control of the gas hob is advantageously an electronic control, which has, for example, in addition to storable program sequences electronically controlled and evaluated touch switch. Furthermore, an energy store in the form of a rechargeable battery is advantageously included in the energy supply or this one has such. Thus, a potentially generated surplus of electrical energy may be stored by the thermal generator for the commencement of operation of the gas burner or gas hob needed for electronic control before the thermogenerator can actually generate it.
  • the gas hob for igniting the gas burner have electrical ignition devices. Furthermore, facilities such as flame monitoring or the like. be provided.
  • a gas hob can have both single-burner and dual-circuit burners, in particular as described above.
  • the gas hob can be designed so that it can be operated without electrical connection to a power grid. Under certain circumstances, it may even be designed without any electrical connection or connection cable. Then, the electrical energy for operation of the aforementioned control and possibly also the gas valves or other functional devices is removed solely from said accumulator. This must always be kept as charged as possible.
  • a gas hob can advantageously also be operated in places or in an environment that, although having a gas supply, for example by a gas cylinder, but are not connected to the mains. Also for mobile gas hobs, for example for camping, so is the invention.
  • electrically or electronically controlled gas valves are advantageously provided in the gas hob. These can be designed so that in the case of a previously described dual-circuit burner with a minimum power setting, only the inner gas burner is ignited and burns with a certain thermal power. This thermal power is designed so that the thermogenerator works well and can advantageously generate the necessary electrical power to supply the electronic control or operates with the best possible efficiency. So can be charged in addition to the supply of the gas hob itself and the said energy storage. Upon further opening of the gas valve of the inner gas burner, it burns with higher thermal power, which then ignites with further increase of the outer gas burner and its thermal performance is thus fully adjustable.
  • thermogenerator In a method according to the invention for operating a gas hob described above, electrical energy can thus be obtained not only by means of the thermogenerator, without removing too much thermal energy for heating the pot. Rather, with the thermogenerator also other functions can be achieved.
  • thermoelectric voltage is monitored at the thermal generator and thus monitors the temperature of the pot bottom of the established pot. Namely, this temperature determines the temperature at the cold side of the thermal generator and thus the generated thermal voltage. It is envisaged that after a longer period of an approximately constant pot bottom temperature due to approximately constant thermoelectric voltage during operation of the gas burner in the case of a subsequent rapid increase in temperature by increasing the thermoelectric voltage Control concludes that the pot is cooked empty. Thus, the temperature of his pot bottom increases sharply. The controller then outputs a corresponding signal and switches off the gas burner.
  • the controller detects the thermal performance of the gas burner.
  • the gas flow rate to the gas burner can be monitored, advantageously by detecting the passage or an open position of the gas valve. This in turn can be compared with the electrical power delivered by the thermogenerator or the thermoelectric voltage. From this, the pot bottom temperature can be determined at least approximately, in particular its relative course.
  • the above-described measured variables or the detected and determined values can be used to control cooking processes.
  • a gas hob 11 is shown with a hob plate 12. It has, according to the invention, a gas burner 14, which consists of a gas burner body 15 with gas outlet openings 16, which are arranged as usual annular therein.
  • the gas burner 14 is supplied by means of a gas supply line 18 whose gas passage is controlled by an electrically controllable gas valve 19.
  • the gas valve 19 is controlled by a controller 20 of the gas hob 11.
  • This controller 20 can either be designed solely for this gas burner 14 alone or for all gas burners or advantageously for the entire gas hob 11.
  • a heat conducting element 23 is held above the gas burner 14.
  • This heat-conducting element 23 is disk-shaped and although it is slightly larger than the gas burner body 15, but not much.
  • the heat-conducting element consists of a material which conducts heat well, for example aluminum or copper, under certain circumstances also die-cast.
  • thermogenerator 25 On the upper side of the heat-conducting element 23, a thermogenerator 25 is arranged with surface contact thereon, in such a way that it sits centrally thereon and thus concentric with the gas burner body 15.
  • the thermogenerator 25 is disc-shaped and significantly thicker than the heat-conducting element 23, which however it does not have to be that way.
  • Connecting lines 27 of the thermal generator are shown schematically and go laterally from him and are guided to an energy storage 29 of the gas hob 11.
  • the energy store 29 in turn is connected to the controller 20. He has an accumulator, not shown, or other loadable energy storage.
  • the controller 20 can be powered not only by the energy storage 29 with energy, but also directly by the thermal energy generated by the thermogenerator 25 or electrical energy.
  • this may be an electrically non-conductive or poorly conductive oxide surface on a metal, so that two metal lines or metal wires as connecting lines 27 emerge from the thermal generator 25.
  • it may also be common metal wires with a sufficiently good electrical and thermal insulation by a surrounding glass fiber fabric or the like.
  • high-temperature resistant silicone mixtures can be added or used.
  • thermogenerator 25 rests with its upper surface and directly on the underside of a pot bottom 31 of a pot 30.
  • the thermal generator 25 thus has its hot side at the bottom.
  • thermal energy from the gas burner 14 or from the gas flames 17 via the heat-conducting element 23 to the hot side is introduced into the thermal generator 25.
  • the thermal energy is released again in the pot bottom 31 inside.
  • the thermogenerator 25 is cooled by the bottom of the pot 31 for the temperature difference necessary for operation.
  • the thermal energy is not lost to the heating process, but is just about the detour through the thermogenerator 25 in the actual target, namely the pot bottom 31 and the pot 30, registered.
  • thermogenerator 25 Similar to the lower heat-conducting element 23, a further heat-conducting element can also be provided on the upper side of the thermal generator 25, namely in order to improve the release of the thermal energy from the thermal generator 25 to the pot bottom 31. However, this actually only makes sense if this heat-conducting element would be considerably larger than the thermal generator in order to distribute the thermal energy emitted by the latter to a larger area of the pan bottom 31. Although this would improve the release of thermal energy from the thermal generator 25 and thus its efficiency. At the same time, however, the heat input from the gas burner 14 or the gas flames 17 into the bottom of the pan 31 is thereby impaired, so that it is actually not advisable to do so. Rather, the size of the thermogenerator 25 should be such that, as shown, it is somewhat smaller in diameter than the gas burner body 15 and thus as the ring of the gas outlet openings 16.
  • thermogenerator 25 The main improvement in the efficiency of the thermogenerator 25 or increase in the electrical power generated by it is via the lower heat conducting element 23, which is heated so to speak by the gas burner 14 and the gas flames 17 stronger by its larger diameter than would apply to the thermogenerator 25 alone.
  • the heat-conducting element 23 have a shape which deviates from a circular disk corresponding to the ring of gas outlet openings 16.
  • protrusions and recesses may be provided in the manner of a toothed wheel, wherein these are advantageously matched to the gas outlet openings 16.
  • the gas outlet openings 16 namely determine the course of the gas flame 17. Either the projections can be just above the gas outlet opening 16 and thus above the gas flames 17 for a particularly good heating. Alternatively, they can be just between them to be heated by some of them for a sufficiently good coupling of thermal energy in the thermogenerator 25. At the same time they do not escape the warming up of the pot bottom 31 but not too much energy.
  • the spring 21, the heat-conducting element 23 and the thermogenerator 25 advantageously form together with the connection lines 27 an independent structural unit. Either each gas burner of the gas hob 11 such a unit, so that in each case when operating a gas burner and electric power for the energy storage 29 is generated, in which case of course all thermal generators are connected to the same energy storage 29.
  • this assembly is removable from the gas burner 14 and the gas burner body 15, for example, by the removable lid, or is formed integrally with the lid.
  • connection lines 27 may be long enough to reach each gas burner of the gas hob.
  • the connecting lines 27 can be plugged in and out via detachable plug connections on the gas hob 11 or on the hob plate 12 as an electrical connection.
  • thermogenerator 25 This assembly with the thermogenerator 25 is then attached to each of the gas burner, which is to be operated. So it can be ensured that whenever any gas burner of the gas hob 11 burns, also electrical energy is generated.
  • the electrical energy of the energy accumulator 29 can also be used to operate the gas valve 19, which is controlled by the controller 20.
  • a simpler embodiment of the gas hob described is an embodiment without heat-conducting or heat-conducting. Although this is less effective, because the thermogenerator is heated only partially and also unevenly. By saving the réelleleitblechs but a much cheaper structure can be realized.
  • a gas burner 114 is similar to that one Fig. 1 shown with a gas burner body 115, gas outlet openings 116 and gas flames 117.
  • the gas hob 111 also has a thermogenerator 125, which, however, is formed like an annular, so with an opening in the middle, but this would not necessarily be so.
  • the thermogenerator 125 is connected radially outwardly with pot support arms 133, of which, for example, four pot support arms 133 may be provided as usual and form a cross together with the thermogenerator 125.
  • the pot 130 can then be placed with its pot bottom 131. Between the thermogenerator 125 and the pot support arms 133 insulating parts may be provided which prevent a thermal short circuit of the outer legs of the thermal generator by the pot support arms.
  • pot support arms 133 Radially outside the pot support arms 133 are placed on pot support posts 134, wherein Dämmmaschine 136 are disposed between these two. This should be achieved that laterally outward on the pot support arms 133 is not too much thermal energy to the pot support posts 134 and thus in the hob plate 112 is discharged. For one thing, it would only bother you or cause damage. Furthermore, it would be missing for heating the pot 130.
  • Fig. 2 Not shown in Fig. 2 are connecting cables of the thermal generator 125 and gas valve, control and energy storage accordingly Fig. 1 , However, they can be provided in the same way as is easily imaginable. Connecting lines for the thermal generator 125 can either run very close to the pot support arms 133 and the pot support posts 134 and thus also be a piece away from the gas flames 117. Alternatively, they can also run in these, if they are hollow, and thus be very well protected.
  • the advantage of the arrangement 2 is that no mechanically movable parts are provided. However, just the construction of the pot carrier is more expensive and it is for each gas burner 114 a separate thermal generator 125 provided.
  • thermogenerator 125 could also be formed as a continuous closed disc similar to in FIG Fig. 1 .
  • a heat-conducting element could again be provided on the underside, possibly also on the upper side, as in FIG Fig. 1 shown and described. Such a heat-conducting element would be advantageous above all on the underside of the thermal generator 125, that is to say on the hot side.
  • a gas burner 214 is designed as a so-called dual-circuit burner here. It therefore has an internal gas burner 214a and an external gas burner 214b, as is known in principle.
  • the smaller inner gas burner 214a with a gas burner body 215a and gas outlets 216a is located above the larger outer gas burner 214b. This does not have to be so, they could also be concentric with each other in about the same plane.
  • thermogenerator 225 On top of the inner gas burner 214a and the gas burner body 215a, a thermal generator 225 is arranged with a lower heat-conducting element 223a, which is slightly smaller and is designed as a downwardly beveled disc.
  • the thermogenerator 225 in turn lies with its upper side, ie the cold side, flat and directly on the underside of a pot bottom 231 of a pot 230, which is to be heated.
  • the pot 230 stands on the pot support posts 234 shown outside.
  • the second outer gas burner 214b has a gas burner 215b with gas outlet openings 216b, from which large and long gas flames 217b occur. While the smaller gas flames 217a of the inner gas burner 214a at least partially act on the heat conducting element 223 and the thermal generator 225, the outer gas flames 217b of the outer gas burner 214b go exclusively to the pot bottom 231 or couple thermal energy exclusively into this. The thermal generator 225 is thus supplied or heated exclusively by the internal gas burner 214a.
  • thermogenerator 225 As well as in Fig. 2 are also in Fig. 3 not shown, the gas valves for supplying the two gas burners 214a and 214b, control, energy storage and electrical connection lines for the thermogenerator 225. However, you can also as in Fig. 1 be provided. Furthermore, also in Fig. 3 the thermal generator 225 may be either fixed or detachable to the gas burner 214a.
  • the thermal generator 225 generates sufficient energy to operate a controller accordingly Fig. 1 , possibly also an electrically operated gas valve.
  • a two-circuit burner as in Fig. 3 most of the thermal energy is usually generated by the outer gas burner, so that the low thermal power loss by the provision of the thermal generator 225 is not negative.
  • thermogenerators by the control for temperature measurement or pan detection has likewise already been described in detail at the outset.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cookers (AREA)
  • Gas Burners (AREA)
  • Baking, Grill, Roasting (AREA)

Claims (14)

  1. Procédé pour faire fonctionner une table de cuisson au gaz (11, 111, 211) avec au moins un brûleur à gaz (14, 114, 214a, 214b) avec un corps de brûleur à gaz (15, 115, 215a), qui présente des orifices de sortie de gaz (16, 116, 216a), dans lequel
    - un générateur thermique (25, 125, 225) est disposé au-dessus du corps de brûleur à gaz (15, 115, 215a),
    - le générateur thermique (25, 125, 225) présente une liaison électrique (27) à une source d'énergie (29) de la table de cuisson au gaz (11, 111, 211),
    - la source d'énergie est reliée à une commande (20) de la table de cuisson au gaz (11, 111, 211),
    dans lequel
    - à partir de l'évolution de la tension thermique au générateur thermique (25, 125, 225), on surveille une température d'un fond de casserole (31, 131, 231) d'une casserole déposée (30, 130, 230),
    - après une phase prolongée d'une température de fond de casserole constante pendant le fonctionnement du brûleur à gaz (14, 114, 214a, 214b) et une hausse rapide de la température qui suit, la commande déduit que la casserole déposée (30, 130, 230) est cuite à vide et elle émet un signal correspondant et elle arrête le brûleur à gaz (14, 114, 214a, 214b),
    caractérisé en ce que le générateur thermique (25, 125, 225) est exposé sur son côté chaud à l'énergie thermique du corps de brûleur à gaz (15, 115, 215a) lui-même et le côté froid du générateur thermique est refroidi par le fond de casserole (31, 131, 231).
  2. Procédé selon la revendication 1, caractérisé en ce que l'on utilise les grandeurs de mesure détectées pour la régulation d'opérations de cuisson.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que l'on maintient le générateur thermique (25, 125, 225) au-dessus du corps de brûleur à gaz (15, 115, 215a) et on le pousse vers le haut avec des moyens de maintien souples ou élastiques (21) pour l'appliquer sous l'action de la force de ressort sur le côté inférieur (31, 131, 231) d'une casserole (30) se trouvant au-dessus du brûleur à gaz (14, 114, 214a, 214b) .
  4. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le générateur thermique (25, 125, 225) est réalisé en forme de disque et est disposé sensiblement parallèlement au plan des orifices de sortie de gaz (16, 116, 216a).
  5. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un premier élément conducteur de chaleur inférieur (23, 123, 223) est disposé entre le brûleur à gaz (14, 114, 214a, 214b) ou le corps de brûleur à gaz (15, 115, 215a) et le générateur thermique (25, 125, 225), est réalisé en forme de disque et est disposé sensiblement parallèlement au plan des orifices de sortie de gaz (16, 116, 216a) à distance de celui-ci, dans lequel le premier élément conducteur de chaleur inférieur (23, 123, 223) est plus grand que le corps de brûleur à gaz (15, 115, 215a).
  6. Procédé selon la revendication 5, caractérisé en ce le premier élément conducteur de chaleur inférieur (23, 123, 223) présente dans sa région de bord des trous et/ou des évidements de type entailles.
  7. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il est prévu au-dessus ou sur le côté supérieur du générateur thermique (25, 125, 225) un deuxième élément conducteur de chaleur supérieur supplémentaire, qui est réalisé en forme de disque et qui est environ aussi grand que le générateur thermique (25, 125, 225) lui-même.
  8. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le brûleur à gaz (14, 114) est constitué par un brûleur à un seul cercle avec un seul corps de brûleur à gaz (15, 115) et un seul anneau d'orifices de sortie de gaz (16, 116) dans celui-ci.
  9. Procédé selon l'une quelconque des revendications 1 à 7, caractérisé en ce que le brûleur à gaz est constitué par un brûleur à deux cercles avec un corps de brûleur à gaz intérieur (215a) et un corps de brûleur à gaz extérieur (215b), dans lequel le générateur thermique (225) est disposé au-dessus du corps de brûleur à gaz intérieur (215a), dans lequel une flamme de gaz (217a) est formée de façon non réglable au corps de brûleur à gaz intérieur (215a) mais opère en permanence avec une puissance thermique définie de telle manière que le générateur thermique (225) produise une puissance électrique demandée, dans lequel un corps de brûleur à gaz extérieur (215b) est réglable.
  10. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le générateur thermique (125) est réalisé comme support de casserole ou comme partie de support de casserole et est à cet effet disposé sur le brûleur à gaz (114) de façon non déplaçable en direction verticale.
  11. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la table de cuisson au gaz (11, 111, 211) est formée sans possibilité de raccordement électrique à un réseau électrique, dans lequel il présente des dispositifs d'allumage électriques pour l'allumage de ses brûleurs à gaz (14, 114, 214a, 214b).
  12. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la puissance électrique du générateur thermique (25, 125, 225) est par conception plus élevée que la demande de puissance effective de la commande (20) de la table de cuisson au gaz (11, 111, 211) afin de stocker l'énergie électrique excédentaire du générateur thermique (25, 125, 225) dans l'accumulateur d'énergie (29).
  13. Procédé selon la revendication 9, caractérisé en ce qu'il est prévu pour l'alimentation en gaz des brûleurs à gaz (214a, 214b) des soupapes à gaz électriques à commande électronique (19), qui sont conçues de telle manière que pour un très faible réglage de puissance dans un brûleur à gaz (214a, 214b) sous la forme de brûleur à deux cercles le brûleur à gaz intérieur (214a) soit allumé et brûle avec une puissance thermique déterminée, qui est conçue de telle manière que le générateur thermique (225) produise la puissance électrique nécessaire pour l'alimentation de la commande électronique (20), dans lequel le brûleur à gaz intérieur (214a) brûle avec une puissance thermique plus élevée avec une ouverture supplémentaire de la soupape à gaz (19) et le brûleur à gaz extérieur (214b) peut ensuite être allumé et sa puissance thermique peut être réglée.
  14. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la commande (20) détecte la puissance thermique produite au brûleur à gaz (14, 114, 214a, 214b) à l'aide du débit de gaz vers le brûleur à gaz au moyen de la détection du passage ou de la position d'ouverture de la soupape à gaz (19), et la compare à la puissance électrique produite par le générateur thermique (25, 125, 225) et on détermine à partir de celle-ci la température du fond de casserole.
EP16156130.3A 2010-10-25 2011-10-21 Procédé destiné au fonctionnement d'un champ de cuisson au gaz avec un brûleur à gaz Active EP3045810B1 (fr)

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DE102010042872A DE102010042872A1 (de) 2010-10-25 2010-10-25 Gasbrenner für ein Gaskochfeld und Gaskochfeld sowie Verfahren zum Betrieb eines solchen Gaskochfeldes
EP11186138.1A EP2444726B1 (fr) 2010-10-25 2011-10-21 Brûleur à gaz pour un champ de cuisson au gaz et champ de cuisson au gaz ainsi que procédé destiné au fonctionnement d'un tel champ de cuisson au gaz

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EP11186138.1A Division-Into EP2444726B1 (fr) 2010-10-25 2011-10-21 Brûleur à gaz pour un champ de cuisson au gaz et champ de cuisson au gaz ainsi que procédé destiné au fonctionnement d'un tel champ de cuisson au gaz
EP11186138.1A Division EP2444726B1 (fr) 2010-10-25 2011-10-21 Brûleur à gaz pour un champ de cuisson au gaz et champ de cuisson au gaz ainsi que procédé destiné au fonctionnement d'un tel champ de cuisson au gaz

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Also Published As

Publication number Publication date
EP2444726B1 (fr) 2016-04-06
TR201820935T4 (tr) 2019-01-21
EP2444726A2 (fr) 2012-04-25
EP3045810A1 (fr) 2016-07-20
DE102010042872A1 (de) 2012-04-26
EP2444726A3 (fr) 2012-06-27
ES2571108T3 (es) 2016-05-24
ES2712707T3 (es) 2019-05-14
US20120097148A1 (en) 2012-04-26

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