EP1321082A2 - Dispositif pour le traitement thermique de substances en particulier de la nourriture - Google Patents

Dispositif pour le traitement thermique de substances en particulier de la nourriture Download PDF

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Publication number
EP1321082A2
EP1321082A2 EP20020021224 EP02021224A EP1321082A2 EP 1321082 A2 EP1321082 A2 EP 1321082A2 EP 20020021224 EP20020021224 EP 20020021224 EP 02021224 A EP02021224 A EP 02021224A EP 1321082 A2 EP1321082 A2 EP 1321082A2
Authority
EP
European Patent Office
Prior art keywords
condensation
line
cooking
cooking space
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Withdrawn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
EP20020021224
Other languages
German (de)
English (en)
Inventor
Lutz Riefenstein
Rainer Lammerskitten
Günther Wurdinger
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.)
Welbilt Deutschland GmbH
Original Assignee
Convotherm Elektrogeraete 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 Convotherm Elektrogeraete GmbH filed Critical Convotherm Elektrogeraete GmbH
Publication of EP1321082A2 publication Critical patent/EP1321082A2/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Withdrawn legal-status Critical Current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

Definitions

  • the invention relates to a device for heat treatment of substances, especially food with a cooking space, a device for generating a steam-containing treatment medium in the cooking space, a condensation device for condensing excess Steam as well as shut-off devices in all of the Lines leading to the outside of the cooking space.
  • a device of this type is known from EP 0 582 238 A1.
  • a drain line is provided on the bottom of the cooking space, on the one hand into a siphon-type one Mixing capacitor and on the other hand via a control and controllable valve opens into the atmosphere.
  • a drain line for vapors provided, which can be closed by a throttle valve.
  • Those entering the mixing condenser via the drain line Vapors are condensed there.
  • This condensing device however, is not enough to get the cooking space so quickly to dehumidify that when opening the oven door the outlet larger amounts of steam can be avoided.
  • DE 28 51 671 A1 also describes a device for treatment of foods with steam known at an injector nozzle spraying cold water into a room, on the one hand with the cooking space and on the other hand with the atmosphere is connected so that excess steam comes out the cooking space to maintain an atmospheric Pressure flows out, is condensed in this room. With this air to be condensed also flows out into the air The atmosphere escapes and therefore no longer enters the cooking space is returned as dry air. A quick dehumidification can not be carried out with this condensation device become.
  • a humidity sensor indicates the desired dehumidification.
  • Ambient air to be introduced into the cooking space by diluting the cooking cabinet atmosphere and one Displacement of the humid air to enable dehumidification. This requires an increased constructive Effort also increased energy expenditure for the replaced one To reheat air.
  • the object of the invention is a device of the above the specified type so that not only one special enables effective condensation of large amounts of steam but also the design effort kept low and thereby the energy expenditure for reheating the newly introduced Air is kept low.
  • the condensing device has an injector nozzle for water a condensation space that has two lines communicates with the cooking space, the first of which Line as feed line for vapors and the second line serves as a return line for dehumidified air and that the Cooking chamber monitored by a vacuum valve Has inlet opening for ambient air.
  • the solution according to the invention also has other advantages with himself.
  • One of these advantages is that inside no condensation device is provided in the cooking space is.
  • surface capacitors and also with mixed capacitors where the condensation on an open Water surface takes place, it forms Cold areas in relation to the rest of the atmosphere when in the Cooking space are arranged so that in the area of this Condensation devices have a negative impact on the Food treatment takes place.
  • For baked goods can cause this in the area of Condenser does not get the tan like the baked goods further away.
  • Mixed condensation Cold water flows through the cooking space inside the cooking space that heats up along its path and leads to calcifications leads in the cooking space.
  • the Invention by the usual condensation devices in the cooking space necessary fittings avoided what the Formation of a uniform air circulation serves and thus to improve the treatment result of the Food leads.
  • an advantageous development of the invention is that the injector nozzle, the condensation chamber and the lines are assigned to one another in the manner of a water jet pump.
  • vapors are sucked out of the cooking chamber through the first line in addition to the negative pressure created by condensation, because the injector nozzle also generates a negative pressure in accordance with the water jet pump principle.
  • the vapors are thus sucked out of the cooking space in a considerably shorter time than would be possible by condensation alone. So that the water emerging from the injector nozzle and the resulting condensate can be removed in a simple manner, in a further development of the invention it is provided that the return line opens into a liquid drain line leading out of the cooking space. In this way, the cooking chamber and the atmosphere in it are not influenced by flowing water.
  • connection openings assigned to the two lines in the flow direction of the treatment medium lie one behind the other inside the cooking space, whereby the connection opening for the feed line in the flow direction of the treatment medium in front of the connection opening for the return line. This will withdrawing the brothers and returning them through the Dehumidification created dry air relieved.
  • the liquid drain line associated with the cooking space Shut-off device is a mixed condenser, which after Kind of a siphon is formed. This will get through Condensation liquid in the mixing condenser, which has an overflow, so that despite the need for Liquid drainage the shut-off device for the cooking space in can be designed particularly simply.
  • a cooking space 2 is provided, which is at the deepest of the Place the bottom of the cooking space 4, which is inclined on all sides, a drain opening 5, to which a liquid drain line 6 followed.
  • This liquid drain line 6 opens into one Capacitor 7, which is designed as a mixed capacitor and also serves as a siphon-like water barrier.
  • the condenser 7 has a water filling 8 which leads out a condensate drain pipe 9, this Condensate drain pipe according to the height dimension 10 the Determines the amount of water in which the Immersed liquid drain line 6.
  • the distance between the top edge of the liquid and the bottom edge of the Liquid drain line 6 is designated and determined by 11 the amount of pressure that is required to leak of the treatment medium from the cooking space through the Allow capacitor through.
  • a recirculation fan 12 is provided, which by a motor 13 can be driven.
  • the steam can pass through one Steam generator, not shown, are supplied.
  • a Electric heater 14 surrounds the air blower, so that axially sucked medium in the radial direction accordingly the arrows 15 is pressed into the cooking space 2, one Partition 16 with a central opening 17 suction of the treatment medium from the cooking space.
  • Through column 18 between the partition 16 and the The inside of the cooking appliance 19 becomes the treatment medium in transported the cooking space.
  • an exhaust duct referred to the space above the water filling 8 of the Condenser vented.
  • 21 denotes an inlet line, which is monitored by a vacuum valve 22 and only then lets in ambient air into the cooking space when a certain one There is negative pressure in the cooking space 2.
  • a condensation space 23 is located below the cooking space floor 4 formed by a supply line 24 to the cooking space communicates with the inlet opening 25 of this feed line close to the highest level of the cooking space floor 4 or a side wall 3 is located.
  • the Condensation chamber 23 is located via a return line 26 on the one hand with the cooking space 2 and on the other hand with the Capacitor 7 in connection, since this return line 26 in the liquid drain line 6 opens.
  • An injector nozzle for cold water, designated 27, radiates for the purpose the condensation a water jet 28 in the Condensation space 23 into the atmosphere in the Condensation chamber 23 cools down so that a Condensation of vapors can take place.
  • the resulting in the cooking space due to the condensation Vacuum causes the vacuum valve 22 to open that through the inlet line 21 ambient air into the cooking space is introduced.
  • the resulting from the condensation dried air escapes via the return line 26 and the opening 5 in the cooking space floor 4 back into the cooking space, so that due to the distance of the inlet opening 25 and the with 29 designated outlet opening of the return line Circulation for the air that initially appears as moisture-laden Air through the inlet opening 25 and the Feed line 24 enters the condensation chamber 23 and then flow back into the cooking space via the return line 26 can.
  • the dehumidified air is not in the Environment, but gets back into the cooking space, whereby the proportion of those sucked in via the inlet line 21 Ambient air is correspondingly low. The This significantly improves the energy balance.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)
  • Cookers (AREA)
EP20020021224 2001-12-20 2002-09-18 Dispositif pour le traitement thermique de substances en particulier de la nourriture Withdrawn EP1321082A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10162953 2001-12-20
DE2001162953 DE10162953A1 (de) 2001-12-20 2001-12-20 Vorrichtung zur Wärmebehandlung von Substanzen, insbesondere Nahrungsmitteln

Publications (1)

Publication Number Publication Date
EP1321082A2 true EP1321082A2 (fr) 2003-06-25

Family

ID=7710174

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020021224 Withdrawn EP1321082A2 (fr) 2001-12-20 2002-09-18 Dispositif pour le traitement thermique de substances en particulier de la nourriture

Country Status (2)

Country Link
EP (1) EP1321082A2 (fr)
DE (1) DE10162953A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1616515A1 (fr) * 2004-07-15 2006-01-18 BSH Bosch und Siemens Hausgeräte GmbH Cuisseur à vapeur
FR2977778A1 (fr) * 2011-07-11 2013-01-18 Rational Ag Procede de commande de la teneur en vapeur dans un espace de cuisson d'un appareil de cuisson
EP2697569B1 (fr) * 2011-04-15 2017-07-12 BSH Hausgeräte GmbH Appareil de cuisson à la vapeur, en particulier four à vapeur
CN107997566A (zh) * 2017-06-14 2018-05-08 宁波方太厨具有限公司 一种用于蒸箱的蒸汽冷凝回收结构

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10327282C5 (de) * 2003-06-17 2008-03-06 Convotherm Elektrogeräte GmbH Vorrichtung zur Wärmebehandlung von Substanzen, insbesondere Nahrungsmitteln
ATE369527T1 (de) 2005-04-29 2007-08-15 Neubauer Kurt Mkn Maschf Gargerät mit einem garraumablauf und einem siphon
DE102006034081B4 (de) * 2006-07-24 2015-03-05 Rational Ag Gargerät mit einer Ablaufvorrichtung
DE102008012961B4 (de) 2008-03-06 2010-02-25 Mkn Maschinenfabrik Kurt Neubauer Gmbh & Co. Gargerät mit einer Wrasenkondensiereinrichtung
CN108618590B (zh) * 2017-03-20 2021-12-14 佛山市顺德区美的电热电器制造有限公司 烹饪器具和烹饪器具的控制方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2851671A1 (de) 1977-12-05 1979-06-13 Escan Metal Canada Ltd Vorrichtung zur behandlung von nahrungsmitteln mit dampf
EP0582238A1 (fr) 1992-08-04 1994-02-09 Wiesheu-Wiwa GmbH Dispositif pour le traitement à chaud de produits alimentaires
EP0386862B1 (fr) 1989-03-09 1994-07-13 LechMetall Landsberg GmbH Edelstahlerzeugnisse Appareil de cuisson

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3821205C2 (de) * 1988-06-23 1998-12-24 Kueppersbusch Kombiniertes Dämpf- und Heißumluftgerät
DE19649452A1 (de) * 1996-11-28 1998-06-04 Premark Feg L L C N D Ges D St Vorrichtung und Verfahren zur Regelung des Feuchtegehalts in einer Kochvorrichtung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2851671A1 (de) 1977-12-05 1979-06-13 Escan Metal Canada Ltd Vorrichtung zur behandlung von nahrungsmitteln mit dampf
EP0386862B1 (fr) 1989-03-09 1994-07-13 LechMetall Landsberg GmbH Edelstahlerzeugnisse Appareil de cuisson
EP0582238A1 (fr) 1992-08-04 1994-02-09 Wiesheu-Wiwa GmbH Dispositif pour le traitement à chaud de produits alimentaires

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1616515A1 (fr) * 2004-07-15 2006-01-18 BSH Bosch und Siemens Hausgeräte GmbH Cuisseur à vapeur
EP2697569B1 (fr) * 2011-04-15 2017-07-12 BSH Hausgeräte GmbH Appareil de cuisson à la vapeur, en particulier four à vapeur
FR2977778A1 (fr) * 2011-07-11 2013-01-18 Rational Ag Procede de commande de la teneur en vapeur dans un espace de cuisson d'un appareil de cuisson
CN107997566A (zh) * 2017-06-14 2018-05-08 宁波方太厨具有限公司 一种用于蒸箱的蒸汽冷凝回收结构
CN107997566B (zh) * 2017-06-14 2023-06-20 宁波方太厨具有限公司 一种用于蒸箱的蒸汽冷凝回收结构

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Publication number Publication date
DE10162953A1 (de) 2003-07-10

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