EP3285011A2 - Appareil de cuisson et procédé de fonctionnement - Google Patents

Appareil de cuisson et procédé de fonctionnement Download PDF

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Publication number
EP3285011A2
EP3285011A2 EP17182067.3A EP17182067A EP3285011A2 EP 3285011 A2 EP3285011 A2 EP 3285011A2 EP 17182067 A EP17182067 A EP 17182067A EP 3285011 A2 EP3285011 A2 EP 3285011A2
Authority
EP
European Patent Office
Prior art keywords
steam
steam generator
cooking
water
cooking chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP17182067.3A
Other languages
German (de)
English (en)
Other versions
EP3285011A3 (fr
Inventor
Tino BERGMEIER
Thomas Metz
Niels OHRMANN
Tilo Ewers
Andre Peters
Stephan Lückebergfeld
Jörg Vollgraf
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.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP3285011A2 publication Critical patent/EP3285011A2/fr
Publication of EP3285011A3 publication Critical patent/EP3285011A3/fr
Withdrawn legal-status Critical Current

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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
    • F24C15/00—Details
    • F24C15/32—Arrangements of ducts for hot gases, e.g. in or around baking ovens
    • F24C15/322—Arrangements of ducts for hot gases, e.g. in or around baking ovens with forced circulation
    • F24C15/327—Arrangements of ducts for hot gases, e.g. in or around baking ovens with forced circulation with air moisturising
    • 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
    • F24C15/003—Details moisturising of air

Definitions

  • the present invention relates to a cooking appliance comprising at least one cooking chamber, at least one steam generator and at least one water supply in connection to the steam generator.
  • the cooking chamber can be heated by means of the steam generator with steam.
  • a steam outlet is provided in the cooking chamber, via which steam emerging from the cooking chamber can be discharged via at least one steam discharge.
  • the present invention further relates to two methods of operating such a cooking appliance.
  • the publication DE 10 2008 052 117 A1 shows a cooking appliance, in which the steam intended for steam generation is preheated with the steam escaping from the cooking chamber.
  • a disadvantage of using steam for cooking food is that the evaporation of water requires relatively much energy. Furthermore steam is removed from the cooking chamber via a steam outlet in steam cookers or cooking appliances with steam operation. Depending on the configuration of the cooking appliance, a larger amount of steam is also removed from the cooking chamber into the kitchen, especially at the end of a cooking process. As a result, the kitchen is relatively much moisture. In addition, deposits of minerals can be observed due to operational reasons in aggregates for heating water.
  • the cooking appliance according to the invention comprises at least one cooking chamber, at least one steam generator and at least one water supply in operative connection to the steam generator.
  • the cooking chamber can be heated by means of the steam generator with steam, wherein the cooking chamber further comprises at least one steam outlet to which at least one steam discharge is connected.
  • the vapor outlet is further followed by at least one capacitor device, wherein the capacitor device is at least partially in operative connection to the water supply and the steam discharge.
  • the steam generator of the cooking appliance can be designed both as an external steam generator and as an internal steam generator. If the steam generator is provided as an internal steam generator, the cooking chamber preferably comprises at least one connection possibility for the water supply, so that water to be evaporated can be introduced into the cooking chamber. If the steam generator is provided as an external steam generator, the water supply is preferably connected directly to the steam generator. The steam generator then further suitably comprises at least one outlet for steam, which is preferably connected to at least one steam inlet of the cooking chamber. Also, the use of an external steam generator and an internal steam generator in a device may be advantageous depending on the configuration.
  • the water supply according to the invention comprises the conduit system for fresh water, which is connected either directly to the steam generator or to the cooking chamber. Furthermore, depending on the configuration, a reservoir and / or a pump may be included in the water supply.
  • the steam removal comprises the line system, which is connected to the steam outlet of the cooking chamber and discharges the steam leaving the cooking chamber.
  • the vapor removal can comprise further components such as, for example, a fan and / or a blower.
  • the capacitor device according to the invention is designed in particular as a condenser and thus preferably provides a heat transfer device.
  • the condenser device is at least partially operatively connected to at least one section of the water supply and / or the steam discharge. It is particularly preferred that the water supply and the vapor removal are arranged to each other or are in operative connection with corresponding components such that a heat transfer from the steam discharge to the water supply is possible.
  • the cooking appliance according to the invention offers many advantages.
  • a significant advantage is that a cooking device with steam operation with a better energy balance is provided by the condenser device downstream of the steam outlet in operative connection to the water supply.
  • the heat of the hot steam emerging from the cooking chamber is at least partially transferred by means of the condenser device to the water to be supplied to the steam generator.
  • the fresh water for the production of steam is already supplied preheated the steam generator, so that for heating or vaporizing a lower energy input is necessary.
  • a further advantage is that the hot steam emerging from the cooking chamber condenses in the condenser device or in the condenser, so that already cooled air with a lower humidity and condensate is formed. Significantly reduced for the steam load in the kitchen, as the humidity escaping into the kitchen is minimized by the condenser device.
  • the capacitor device preferably comprises at least one memory device.
  • the water supply and the vapor discharge are then preferably passed through the storage device or connected to this.
  • Such a storage device may preferably provide at least one cold storage and / or at least one heat storage.
  • a storage device with a good heat capacity can be used.
  • Memory devices made of metal are particularly suitable for this purpose.
  • the storage device is provided at least in sections by at least one metal block.
  • the metal block is in particular designed such that it has a predetermined heat capacity.
  • a metal block of aluminum with a weight of 0.4 to 2.2 kilograms advantageously be used with a weight of 0.8 to 1.2 kilograms.
  • the condenser device is arranged directly on the steam outlet. It is to be understood in particular directly as close as possible to the steam outlet.
  • the condenser device is arranged so close to the steam outlet that a particularly good efficiency of the condenser device is achieved or a particularly good or optimum heat transfer to the intended for evaporation of fresh water takes place.
  • the condenser device is preferably provided fluidically behind the sensor.
  • the condenser device is assigned at least one condensate discharge.
  • a condensate removal can be provided as a separate component or as a separate module, for example, leads via an independent line system resulting in the condensing device condensate in a sanitation.
  • the condensate removal can also be provided by the condenser device itself or by the vapor removal.
  • the resulting condensate can easily flow back into the cooking chamber and is either re-evaporated there or, for example, fed to a sanitation.
  • At least one external steam generator is provided, wherein at least one purge line is connected to the steam generator.
  • the flushing line can be designed as a separate line path to the steam generator.
  • an external steam generator has at least one outlet for steam which is connected to a steam inlet of the cooking chamber.
  • the purge line may also be suitably integrated into the line system between the outlet of the steam generator and the steam inlet of the cooking chamber.
  • a multi-way valve is provided in the line system between the outlet and the steam inlet of the cooking chamber, so that depending on the application, the cooking chamber can be supplied with steam and / or the steam generator can be rinsed with water.
  • the water used for rinsing can then be fed to a sanitation via the rinsing line and preferably a suitable position of the multi-way valve.
  • the steam generator can be rinsed with cold water at the end of a cooking process, so that it cools faster and thus allows or promoted a faster cooling of the cooking chamber.
  • At least one bypass channel is arranged in the water supply and / or the steam removal.
  • a bypass channel in the water supply and / or the vapor removal is intended to not use the capacitor device when needed.
  • the water with which the steam generator is completely filled and / or flushed is at least 60 Kelvin colder than the steam produced by the steam generator.
  • fresh water can be used from a water supply, which usually has a temperature between 0 ° C and 30 ° C.
  • the water In a return of the water from the outlet to the water supply, the water is preferably passed through the condenser device and cooled there, so that the water passes into the steam generator has a temperature of less than 40 ° C.
  • the inventive method is suitable for operating a cooking appliance, as described above.
  • the water intended for steam production can be supplied to the steam generator at least temporarily via the condenser device.
  • the steam flowing out of the cooking chamber is preferably at least temporarily discharged via the condenser device.
  • the method according to the invention offers many advantages.
  • a method for recovering energy from exhaust air in which the energy contained in the steam flowing out of the cooking chamber is transferred by means of the condenser device to the water used for the production of steam.
  • the water used for evaporation is preheated before being introduced into the steam generator, so that less energy is required to evaporate the water.
  • the water intended for steam production is supplied to the steam generator as a function of the steam content in the cooking chamber via the condenser device.
  • the condenser device for this purpose, in particular at least one switchable water supply or switchable steam removal is provided, so that the intended water for steam production is then passed through the condenser device as soon as a certain proportion of steam in the cooking chamber is present.
  • Another method according to the invention is suitable for operating a cooking appliance, as described above.
  • the steam which escapes from the cooking chamber through the steam outlet is guided at least temporarily over the condenser device.
  • the method according to the invention is used in combination at least temporarily combined with the method described above, so that the water to be evaporated and the steam flowing out of the steam outlet are passed over the condenser device.
  • This inventive method for operating a cooking appliance offers many advantages.
  • a significant advantage is that this method provides a process for drying the exhaust air of a steamer.
  • the steam escaping from the cooking chamber is condensed in the condenser device, so that the vapor pressure in the kitchen or the moisture escaping into the kitchen is considerably reduced.
  • the condenser device is preferably flushed with fresh water at least temporarily. This ensures that in the condenser device, a significant proportion of the steam escaping from the cooking chamber is condensed, so that a particularly effective drying of the exhaust air can take place.
  • Another method according to the invention is suitable for operating a cooking appliance, as described above.
  • the steam generator and / or the cooking chamber is at least temporarily filled with water or rinsed and cooled so the steam generator and / or the cooking chamber.
  • a rapid reduction of the steam content in the cooking chamber can be achieved.
  • the vapor pressure in the kitchen or the moisture escaping from the cooking appliance, in particular in connection with the opening of the cooking chamber door can be considerably reduced.
  • the water used for rinsing is supplied to a sanitation.
  • the water used for rinsing can also be returned to a water supply.
  • the above-mentioned advantage can also be achieved by rinsing the water for cooling the steam generator in a circuit through the steam generator.
  • the cooking appliance has a return line which connects an outlet of the steam generator with an inlet of the steam generator.
  • a pump is arranged in the conduit path of this return line, by means of which the water is circulated.
  • the water can be passed to the outlet of the steam generator via the condenser and deliver there heat energy to the memory.
  • the steam generator is flushed or filled with water.
  • a cooking process includes all processes which are directly or indirectly related to the preparation of a food.
  • the cooking process is not finished before the food was removed from the oven. Cleaning and descaling processes that do not run in the immediate context of a cooking program are therefore to be distinguished from the understanding of the term cooking according to the invention.
  • FIG. 1 are purely schematically various components of a cooking appliance 1 according to the invention in a sectional view from the side.
  • the cooking appliance 1 according to the invention is designed as a steam cooker 100 and comprises a cooking chamber 2, which can be supplied with steam 5 by means of a steam generator 3.
  • the steam generator 3 is formed in the embodiment shown as an external steam generator 3, which is supplied via a water supply 4 with fresh water.
  • the fresh water supply comprises in the illustrated embodiment, a line system 18 and a pump 19 and a water supply 13th
  • the external steam generator 3 further comprises an outlet 21, via which steam 5 generated in the steam generator 3 can be supplied via a line system 22 to a steam inlet 15 of the cooking chamber 2 and thus to the cooking chamber 2.
  • the cooking chamber 2 in the exemplary embodiment shown comprises a steam outlet 6, via which excess steam 5 or generally steam 5 is removed from the cooking chamber 2.
  • a sensor device 23 or a temperature sensor 24 is arranged directly in or on the steam outlet 6, so that via the detected temperature in the steam outlet to a saturation of the cooking chamber 2 with steam. 5 can be closed.
  • a steam discharge 7 is connected, wherein in the embodiment shown, the exiting from the cooking chamber 2 steam 5 via a line system 20 of the steam discharge 7 supported by a fan 25 is discharged from the cooking device 1.
  • the cooking appliance 1 comprises a condenser device 8, which is in operative connection to the water supply 4 and the steam discharge 7.
  • the capacitor device 8 is formed in the embodiment shown as a condenser 26 and as a heat transfer device 27.
  • the water supply 4 and the steam discharge 7 are introduced through the condenser device 8.
  • the heat energy provided by the steam flowing out of the cooking chamber 2 is transmitted via the condenser device 8 to the water conducted through the water supply 4 for generating steam. This achieves a particularly good energy balance of the cooking appliance.
  • a capacitor device 8 can be provided by the fact that the water supply 4 at least in sections is in heat-transferring contact with the steam discharge 7.
  • the water supply 4 for example, at least partially wound around the steam discharge 7.
  • the capacitor device 8 comprises a storage device 9, which provides a suitable heat capacity for receiving the heat energy provided by the steam 5.
  • the Storage device 9 provided in the embodiment shown by a metal block 10, which is made of aluminum here.
  • an aluminum block with a weight of about 1 kg is selected in the embodiment shown. In other embodiments, heavier or lighter blocks of aluminum or other suitable metal, such as copper, may be used.
  • a condensate discharge 11 is provided on the condenser device 8 in the embodiment shown.
  • Such condensate removal 11 may be configured as an independent line system.
  • the condenser device 8 is arranged on the steam outlet 6 or in the steam discharge 7 in such a way that the condensate formed in the condenser device 8 flows back into the cooking chamber 2 via the steam discharge 7 and either evaporates again there or from there Wastewater disposal 14 is supplied.
  • the condensate discharge 11 is thus integrated into the steam discharge 7 in the exemplary embodiment shown.
  • FIG. 2 is a schematic diagram of a further cooking appliance according to the invention 1 shown.
  • the basic structure of the cooking appliance 1 corresponds essentially to the previously described cooking appliance 1 according to FIG. 1 ,
  • the steam 5 generated in the steam generator 3 is supplied via an outlet 21 and a line system 22 to the steam inlet 15 of the cooking chamber 2.
  • the water used for evaporation is supplied to the steam generator 3 from a water supply 13.
  • the cooking appliance 1 or the steam generator 3 may also be connected to a fixed water connection.
  • the cooking chamber 2 comprises at least one steam outlet 6, via which steam 5 can be removed via the steam discharge 7 from the cooking chamber 2.
  • the water supply 4 and the steam discharge 7 are operatively connected to a condenser device 8, so that even with the cooking appliance 1 shown here, the advantages already described above can be achieved.
  • FIG. 2 illustrated that in the water supply 4 and in the vapor discharge 7 bypass channels 18 are provided, which can be switched in the embodiment shown in each case via at least one multi-way valve 12.
  • the water used for evaporation can be supplied either via the capacitor device 8 or directly to the steam generator 3.
  • a purge line 16 is provided so that the steam generator 3 can be rinsed with water, this water used for rinsing can then be fed via the purge line 16 a sanitation 14.
  • a multi-way valve 12 is provided in the line system 22, so that the steam generator 3 can be connected to either the steam inlet 15 or sewage disposal 14.
  • the heat energy of the steam 5 emerging from the cooking chamber 2 is preferably at least partially transferred to the fresh water used for evaporation by means of the condenser device 8.
  • the energy balance of the cooking appliance can be significantly improved.
  • the water used for evaporation is preheated by the otherwise lost heat, so less energy must be used for evaporation.
  • the fresh water used for the evaporation is, depending on the configuration, only passed over the condenser device if a predetermined vapor content is already present in the cooking chamber 2. This ensures that the fresh water is only passed through the condenser device 8 when it has charged a certain heat capacity.
  • the condenser device 8 and / or the steam generator 3 are rinsed with fresh water and thus cooled, so that a particularly rapid cooling of the cooking chamber and a particularly effective condensation of the steam 5 is achieved.
  • the water used for rinsing may preferably be supplied to a sanitation so that the water used for rinsing is removed from the system.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Commercial Cooking Devices (AREA)
  • Cookers (AREA)
EP17182067.3A 2016-08-16 2017-07-19 Appareil de cuisson et procédé de fonctionnement Withdrawn EP3285011A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016115161.0A DE102016115161A1 (de) 2016-08-16 2016-08-16 Gargerät und Verfahren zum Betreiben

Publications (2)

Publication Number Publication Date
EP3285011A2 true EP3285011A2 (fr) 2018-02-21
EP3285011A3 EP3285011A3 (fr) 2018-06-27

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Family Applications (1)

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EP17182067.3A Withdrawn EP3285011A3 (fr) 2016-08-16 2017-07-19 Appareil de cuisson et procédé de fonctionnement

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EP (1) EP3285011A3 (fr)
DE (1) DE102016115161A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3805645A1 (fr) * 2019-10-10 2021-04-14 Arçelik Anonim Sirketi Dispositif de cuisson
CN113068998A (zh) * 2021-04-21 2021-07-06 华帝股份有限公司 一种蒸汽烹饪设备的冷凝回收系统
WO2022184427A1 (fr) * 2021-03-01 2022-09-09 BSH Hausgeräte GmbH Évaporateur pour appareil de cuisson à la vapeur ménager, et tiroir de cuisson à la vapeur
DE102022117748A1 (de) 2022-07-15 2024-01-18 Rational Aktiengesellschaft Verfahren zum Betreiben eines Gargeräts, Gargerät und Verwendung eines Reinigungssystems eines Gargeräts

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018216931A1 (de) * 2018-10-02 2020-04-02 BSH Hausgeräte GmbH Verfahren zum Betreiben eines Haushalts-Dampfbehandlungsgeräts sowie Haushalts-Dampfbehandlungsgerät

Family Cites Families (10)

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Publication number Priority date Publication date Assignee Title
DE3909283C2 (de) * 1989-03-21 1994-09-29 Eloma Gmbh Dampfgargerät
DE4403386C1 (de) * 1994-02-04 1995-06-01 Wiesheu Wiwa Gmbh Vorrichtung zur Wärmebehandlung von Lebensmitteln
DE19607940A1 (de) * 1996-03-01 1997-09-04 Uwe Pionati Dampfkondensierer für Backöfen und dergleichen
DE10109247B4 (de) * 2001-02-26 2004-07-08 Rational Ag Vorrichtung und Verfahren zur Reinigung eines Gargerätes
DE102006043181A1 (de) * 2005-10-10 2007-04-19 BSH Bosch und Siemens Hausgeräte GmbH Gargerät, insbesondere Dampfgargerät
DE102007005503B4 (de) * 2007-01-30 2010-07-29 Rational Ag Verfahren zur Reinigung einer Oberfläche eines Nahrungsmittelbehandlungsgeräts
ITRN20070028A1 (it) * 2007-05-25 2008-11-26 Indesit Co Spa Forno di cottura.
DE102008052117A1 (de) * 2008-10-20 2010-04-22 Convotherm Elektrogeräte GmbH Gargerät und Verfahren zum Erwärmen von Trink- oder Brauchwasser in einem Gargerät
DE202009003296U1 (de) * 2009-03-06 2009-05-28 Eloma Gmbh Gargerätekombination
DE102014109727A1 (de) * 2014-07-11 2016-01-14 Miele & Cie. Kg Gargerät und Verfahren zum Betreiben

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3805645A1 (fr) * 2019-10-10 2021-04-14 Arçelik Anonim Sirketi Dispositif de cuisson
WO2022184427A1 (fr) * 2021-03-01 2022-09-09 BSH Hausgeräte GmbH Évaporateur pour appareil de cuisson à la vapeur ménager, et tiroir de cuisson à la vapeur
CN113068998A (zh) * 2021-04-21 2021-07-06 华帝股份有限公司 一种蒸汽烹饪设备的冷凝回收系统
DE102022117748A1 (de) 2022-07-15 2024-01-18 Rational Aktiengesellschaft Verfahren zum Betreiben eines Gargeräts, Gargerät und Verwendung eines Reinigungssystems eines Gargeräts

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Publication number Publication date
EP3285011A3 (fr) 2018-06-27
DE102016115161A1 (de) 2018-02-22

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