WO2007098732A2 - Procédé de nettoyage d'un appareil de cuisson, et appareil de cuisson correspondant - Google Patents

Procédé de nettoyage d'un appareil de cuisson, et appareil de cuisson correspondant Download PDF

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Publication number
WO2007098732A2
WO2007098732A2 PCT/DE2007/000261 DE2007000261W WO2007098732A2 WO 2007098732 A2 WO2007098732 A2 WO 2007098732A2 DE 2007000261 W DE2007000261 W DE 2007000261W WO 2007098732 A2 WO2007098732 A2 WO 2007098732A2
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WO
WIPO (PCT)
Prior art keywords
cleaning
cooking appliance
fluid
steam generator
cleaning fluid
Prior art date
Application number
PCT/DE2007/000261
Other languages
German (de)
English (en)
Other versions
WO2007098732A3 (fr
Inventor
Wolfgang Breinl
Manfred Bucher
Thomas Garner
Paul Linseisen
Tobias Gayer
Wolfgang Holzapfel
Rainer Otminghaus
Thomas Schreiner
Stefan Rusche
Original Assignee
Rational 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 Rational Ag filed Critical Rational Ag
Publication of WO2007098732A2 publication Critical patent/WO2007098732A2/fr
Publication of WO2007098732A3 publication Critical patent/WO2007098732A3/fr

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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
    • F24C14/00—Stoves or ranges having self-cleaning provisions, e.g. continuous catalytic cleaning or electrostatic cleaning
    • F24C14/005—Stoves or ranges having self-cleaning provisions, e.g. continuous catalytic cleaning or electrostatic cleaning using a cleaning liquid
    • 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 present invention relates to a method for cleaning a cooking appliance, in particular a Dampfgarilless, wherein in at least a first cleaning phase, at least a first cleaning fluid is passed through at least part of an interior of the cooking appliance, and a cooking appliance for performing this method.
  • WO 02/068876 A1 discloses a device and a generic Verfaliren for cleaning a cooking appliance.
  • a liquid consisting of water and a cleaning agent, such as a cleaner, a detergent, a rinse aid and / or a decalcifier, for cleaning the cooking chamber in this distributed.
  • this liquid is supplied in particular via a pump to a suction of a fan, distributed in the cooking chamber and then flows through a cooking chamber drain into a quenching box, from which it is again transported by the pump back into the cooking chamber.
  • US 5,279,676 discloses a method for cleaning a boiler. To carry out a decalcification, after draining any water present in the boiler, it is fed with a chemical descaling solution from a reservoir. Subsequently, the descaling liquid is heated to dissolve lime deposit inside the kettle and the descaling liquid is drained from the kettle.
  • a disadvantage of this cleaning method is that in the cooking appliance in which the boiler is located, a comparatively very aggressive descaling substance must be introduced, and the nature of the filling of the cooking appliance with the descaling substance is cumbersome.
  • a decalcification process carried out with this method leads to a very long interruption of the operational readiness of the cooking appliance due to the necessary long service life of the descaling substance in the steam generator.
  • a disadvantage of the known from the prior art method for decalcifying a steam generator is therefore that on the one hand relatively aggressive chemicals in the cooking appliance, in particular the steam generator must be introduced to make a decalcification upon detection of a given degree of calcification.
  • the use of such comparatively aggressive chemicals poses a high risk to a user, and moreover, these chemicals are subject to special regulations regarding their transportation and storage so that a user of the cooking appliance is particular Precautions must be taken for the storage and transport of these chemicals, resulting in an increased cost.
  • the implementation of the known from the prior art decalcifying leads to longer Radio losses and thus increased operating costs.
  • Object of the present invention is therefore to provide a method for cleaning a cooking appliance and a corresponding cooking appliance, which overcome the disadvantages of the prior art, in particular to achieve a decalcification of a steam generator of the cooking appliance while reducing the operating costs and downtime of the cooking appliance.
  • the object concerning the method is achieved in that, in at least a second cleaning phase, the first cleaning fluid conducted through the interior is at least partially supplied to at least one steam generator of the cooking appliance.
  • the cooking appliance in particular before performing the first cleaning phase, is preferably stored in a first reservoir and / or when performing the first cleaning phase, in particular at the beginning of the first cleaning phase, the interior and / or at least a first fluid discharge device of the interior, is fed directly or indirectly.
  • the first cleaning fluid in particular before performing the first cleaning phase, is generated within the cooking appliance, preferably by at least one cleaning substance with at least a second cleaning fluid, preferably water, is mixed, in particular the cleaning substance dissolved in the second cleaning fluid is and / or the first cleaning fluid is diluted by mixing with the second cleaning fluid, wherein preferably the cleaning substance, in particular at the beginning of the first cleaning phase, the interior and / or the first fluid discharge device of the interior, directly or indirectly, is supplied.
  • a second cleaning fluid preferably water
  • the second cleaning fluid in particular before mixing with the cleaning substance and / or a dissolution of the cleaning substance, is heated.
  • the first cleaning fluid and / or the cleaning substance is passed during the first cleaning phase by at least one cooking chamber of the cooking appliance or be.
  • the first cleaning fluid and / or the cleaning substance is supplied to the interior of the cooking appliance by means of at least one first circulating device and / or the first cleaning fluid and / or the cleaning substance is supplied to the steam generator using at least one second circulating device or be used, wherein preferably the first circulating means is used as the second circulating means.
  • the first cleaning fluid and / or the cleaning substance is supplied to the steam generator for decalcifying the steam generator or be.
  • the first cleaning fluid and / or the cleaning substance be circulated through the interior of the cooking appliance, in particular several times, and / or the first cleaning fluid and / or the cleaning substance during the second cleaning phase is supplied to the steam generator by means of a second circulation circuit.
  • the amount of the first cleaning fluid supplied to the interior of the cooking appliance and / or the cleaning substance and the amount of the first cleaning fluid supplied to the steam generator and / or the cleaning substance in particular by means of a first multi-way valve, controlled and / or is regulated.
  • a method is proposed, which is characterized in that the first cleaning fluid and / or the cleaning substance is collected after passage through the interior in at least one second reservoir, and / or the first cleaning fluid and / or the cleaning substance by means of first circulation device is recirculated from the second reservoir into the interior or be.
  • the first cleaning fluid and / or the cleaning substance be supplied to the first multiway valve from the second reservoir.
  • the first cleaning fluid and / or the cleaning substance preferably by means of at least one third circulating from the interior out, preferably in the second reservoir and / or in a drain of the cooking device, is promoted or and / or the first Cleaning fluid and / or the cleaning substance, in particular by means of at least a fourth circulating means out of the steam generator, preferably in the second reservoir and / or in a drain of the cooking appliance, is promoted or become.
  • the amount of the first cleaning fluid supplied to the second reservoir from the interior and / or the cleaning substance and / or the amount of the first cleaning fluid supplied to the drain from the interior of the cooking appliance and / or the cleaning substance is controlled and / or regulated and / or the amount of the second collection from the steam generator supplied first cleaning fluid and / or the cleaning substance and / or the amount of the drain of the cooking appliance from the Steam generator supplied to the first cleaning fluid and / or the cleaning substance, in particular by means of at least one third multi-way valve, controlled and / or regulated.
  • the first and the second cleaning phase to each other at least a first time interval, in particular successively and / or alternately performed.
  • the method according to the invention can be distinguished in that the first and second cleaning phases are sensed overlapping in time, in particular simultaneously, during at least a second period of time.
  • the supply of the first cleaning fluid and / or the cleaning substance to the steam generator in response to a first level, in particular of the first cleaning fluid and / or the cleaning substance takes place in the second reservoir, in particular the first cleaning fluid and / or the Cleaning substance is supplied to the steam generator or, when a first predetermined level is reached in the second reservoir.
  • the invention also proposes a method in which the first cleaning fluid and / or the cleaning substance is or are supplied to the steam generator until a predetermined second level is reached in the steam generator.
  • At least a third cleaning fluid, in particular comprising the second cleaning fluid is fed to the steam generator, preferably until a predetermined third level in the steam generator is reached.
  • the invention proposes that the second and third fill levels be identical.
  • the invention proposes that the first cleaning fluid and / or the cleaning substance remain or remain in the steam generator for a predetermined contact time after being fed to the steam generator.
  • the first cleaning fluid and / or the cleaning substance is or are heated after being fed into the steam generator.
  • a fourth cleaning fluid in particular comprising the second cleaning fluid, preferably for flushing the steam generator, is supplied to the steam generator.
  • the first cleaning fluid and / or the cleaning substance is or are supplied to at least one feed device of the cooking appliance, in particular at least one first feed device operatively connected to the interior, at least one second feed device operatively connected to the steam generator and / or or at least one third feeding device operatively connected to the second collecting container, in particular for decalcifying the feeding device.
  • the first cleaning fluid and / or the cleaning substance at least partially from at least one rinse aid, in particular comprising citric acid, at least one handsfiüsstechnik, at least one cleaning gas, at least one cleaning gel and / or at least one Cleaning rod is formed or become.
  • the cooking appliance relating to the object is achieved by a cooking appliance, in particular for carrying out a method according to the invention, comprising at least one interior and at least one steam generator operatively connected thereto, wherein at least a first cleaning fluid and / or at least one cleaning substance after passing through the interior at least partially the steam generator is fed or are.
  • the interior comprises a cooking chamber.
  • this is characterized by at least a first collecting container for storing the first cleaning fluid and / or the cleaning substance, wherein preferably the first cleaning fluid and / or the cleaning substance directly and / or indirectly, in particular by means of at least one metering device, in the interior is conductive or are.
  • the cooking appliance can also comprise at least one feed device, in particular at least one first feed device operatively connected to the interior, preferably in the form of at least one humidification nozzle, and / or at least one second feed device operatively connected to the steam generator for supplying the first cleaning fluid, the cleaning substance and / or at least one second cleaning fluid, in particular water, into the interior or the steam generator.
  • at least one feed device in particular at least one first feed device operatively connected to the interior, preferably in the form of at least one humidification nozzle, and / or at least one second feed device operatively connected to the steam generator for supplying the first cleaning fluid, the cleaning substance and / or at least one second cleaning fluid, in particular water, into the interior or the steam generator.
  • the steam generator is in operative connection with at least one heating device, this preferably comprises, wherein the first cleaning fluid, the cleaning substance and / or the second cleaning fluid is heated by the steam generator or are.
  • the cooking appliance has at least one first circulating device in operative connection with at least one first fluid supply device of the interior and / or at least one second circulating device in operative connection with at least one second fluid supply device of the steam generator, in particular a boiler of the steam generator.
  • the cooking appliance comprises at least a first recirculation, by means of which the first cleaning fluid, the cleaning substance and / or the second cleaning fluid, in particular during a first cleaning phase, through the interior of the cooking appliance, in particular the cooking chamber, preferably several times, umicalzbar is, wherein the first recirculation preferably is in operative connection with the first circulating means, this comprises in particular, and / or at least a second circulating circuit, by means of which the first cleaning fluid, the cleaning substance and / or the second cleaning fluid, in particular during a second Cleaning phase, the steam generator is supplied or are, wherein the second recirculation preferably is in operative connection with the second circulating means, this includes in particular.
  • the first and / or the second circulation circuit comprise or comprise at least one second collection container, in particular in the form of an extinguishing box and / or a condenser, wherein the second collection container preferably with the first and / or the second Circulating means is operatively connected and / or at least a third supply means, preferably in the form of at least one Ablöschdüse, is operatively connected to the second reservoir, preferably by means of the third supply means, the first cleaning fluid, the cleaning substance and / or the second cleaning fluid fed into the second collecting container is or are.
  • the invention proposes that the first recirculation circuit and the second recirculation circuit are at least partially formed in one.
  • multi-way valve preferably in the form of a three-way valve and / or preferably comprising at least one ball valve and / or at least one ball valve, preferably at least a first terminal of the first multiway valve directly or indirectly with the second reservoir, at least a second port of the first multiway valve directly or indirectly with the first fluid supply and / or at least a third port of the first multiway valve directly or indirectly the second fluid supply device is or are in operative connection, in particular is connected or are proposed.
  • the inner space comprises at least one first fluid discharge device and / or the steam generator comprises at least one second fluid discharge device.
  • the first fluid discharge device and / or the second fluid discharge device can be supplied or are.
  • a cooking device may be characterized by at least one third circulation device which is directly or indirectly in operative connection with the interior, in particular the first fluid discharge device, in particular connected, and / or at least one fourth circulation device which is directly or indirectly connected to the steam generator, in particular the second fluid discharge device, is operatively connected, in particular connected.
  • the first fluid discharge device in particular with the interposition of the third circulation device, preferably via at least one second multi-way valve, in particular a three-way valve and / or preferably comprising at least one ball valve and / or at least one ball valve, with the second collection container and / or a drain of the cooking appliance is in operative connection, in particular connected, preferably at least a first terminal of the second multiway valve directly or indirectly with the second reservoir, at least a second port of the second multiway valve directly or indirectly with the drain of the cooking appliance and / or at least a third connection of the second multi-way valve is directly or indirectly in operative connection with the first fluid discharge device or is, in particular is or are connected, and / or the second fluid discharge device, in particular with interposition the fourth circulating device, preferably via at least a third multi-way valve, in particular a three-way valve and / or preferably comprising at least one ball valve and / or at least one ball valve, is in operative connection with
  • a cooking appliance according to the invention may have at least one first fill level sensor detecting a fill level, in particular of the second collection bin, and / or at least one second fill level sensor, in particular detecting the fill level of the steam generator.
  • At least two of the first, second, third and / or fourth circulating means are formed in one and / or the first circulating means, the second circulating means, the third circulating means and / or the fourth circulating means comprises at least one dirt-driven pump. include.
  • the second collecting container comprises at least one, in particular associated with the flow of the cooking appliance overflow device, wherein by means of the overflow device preferably substances which are lighter than the first and / or the second cleaning fluid can be discharged.
  • At least one regulating and / or control device is in operative connection with the steam generator, in particular the heating device of the steam generator, the Zu Scholir coupled, in particular the first, the second and / or the third feed device, the first fluid supply, the second fluid supply means, the first circulation means, the second circulation means, the third circulation means, the fourth circulation means, the first header tank, the second header tank, the first multiway valve, the second multiway valve, the third multiway valve, the first fluid drainage means, the second fluid drainage means, first level sensor, the second level sensor and / or the overflow device.
  • a method for cleaning the cooking appliance or a method for cooking food in the cooking chamber while applying the same with hot air and / or steam can be performed.
  • the invention is thus based on the surprising finding that the decalcification of a steam generator of a cooking appliance, in particular a combi steamer or Dampfgarilles mars can be achieved in that a cleaning fluid, which is used to clean a Irrnen- space, in particular a cooking chamber, the cooking appliance, not only the interior of the cooking appliance, but also the steam generator, in particular fed to a boiler of the steam generator or is passed through this.
  • the cleaning fluid is a rinse solution or wash liquor.
  • this rinse solution or wash liquor is simultaneously fed during a circulation through the interior of the cooking appliance to the steam generator and / or subsequent to a circulation through the interior.
  • the chemical substances present in the cleaning fluid in particular acids, such as citric acid, cause limescale deposits present in the steam generator to be attacked and released.
  • a cleaning of the interior of the cooking appliance is carried out daily depending on the application of the cooking appliance, in particular at not longer intervals than a week. For example, provide various legal regulations that after about 18 hours of operation of the cooking appliance, a cleaning of the interior is carried out. Because of this comparatively high frequency of carrying out cleaning operations in the interior of the cooking appliance, only relatively small scale deposits occur in the process according to the invention within the steam generator. Therefore, a relatively safe descaling agent can be used as the cleaning fluid. In addition, a contact time of the cleaning fluid to achieve the descaling can be kept short.
  • the inventive method and the cooking appliance according to the invention means that the time intervals between maintenance operations can be extended to the cooking appliance, and the technical effort to clean the steam generator is reduced.
  • the descaling process of the steam generator is integrated in the essentially automatic cleaning process of the interior of the cooking appliance, whereby the descaling is no longer perceived by a user, in particular no additional actions by him for the Descaling of the steam generator must be made. Not to be neglected is also the reduction of environmental pollution. Due to the fact that the washing liquor present in the cooking appliance is "recycled" or recycled for decalcifying the steam generator, the additional, highly polluting decating agents known from the prior art do not occur.
  • Figure 1 shows the schematic structure of a first embodiment of a cooking appliance according to the invention.
  • Figure 2 shows the schematic structure of a second inventive embodiment of a cooking appliance.
  • the cooking appliance 1 shows the schematic structure of a cooking appliance 1 in the form of a combi steamer according to a first embodiment of the invention.
  • the cooking appliance 1 comprises an interior space in the form of a cooking chamber 3 and a steam generator 5.
  • the steam generator 5 generates water vapor, which is supplied to the cooking chamber 3 via a steam pipe 6.
  • the cooking chamber 3 has a first fluid supply device 7 and the steam generator 5 has a second fluid supply device 9.
  • the cooking appliance 1 has a capacitor 11.
  • the condenser 11 is connected via a fluid line 13 to a first fluid discharge device 15 of the cooking chamber 3.
  • the condenser 11 has an overflow 17 which is connected to a drain 19 of the cooking appliance 1.
  • a fluid 21 collected within the condenser 11 forms a fluid reservoir, which causes substances which are lighter than the fluid 21, to flow into the overflow 17 and thus into the drain 19.
  • the condenser 11 also has a drain 23, which is connected to a first circulating device in the form of a dirt-driven pump 25.
  • the pump 25 further acts, as will be explained later, as a second circulating means for supplying fluid to the steam generator 5.
  • the outlet 23 is connected to the drain 19 via a valve 27.
  • the outlet 23 and the pump 25 make it possible for the fluid 21 present in the condenser 11 to be supplied to the cooking chamber 3 via a line 29 via the first fluid feed device 7.
  • a present in the cooking chamber 3 fluid can then through the first Fluidabrios issued 15 and the Fluid line 13 flow back into the condenser 11. In this way, a first circulation circuit is formed.
  • a first multi-way valve in the form of a three-way valve 31 is further arranged.
  • One connection of the three-way valve 31 is connected via a fluid line 33 to the second fluid supply device 9 with the interposition of a further circulating device in the form of a pump 35.
  • the first circulation circuit a further, second multi-way valve, in particular a three-way valve, which is arranged in the fluid line 13, comprise, so that the fluid discharge means 15 are selectively connected to the condenser 11 or directly to the drain 19 can.
  • a further three-way valve 37 is arranged in the fluid line 33.
  • the three-way valve 37 causes a second circulation circuit is formed within the cooking device 1.
  • a fluid present in the condenser 11 can be conveyed via the outlet 23 by means of the pump 25 via the three-way valve 31 into the fluid line 33.
  • the fluid can be conveyed from a branch in the fluid line 33 and through the pump 35 and the second fluid supply 9 into the steam generator 5.
  • the existing in the steam generator 5 fluid 39 can be further promoted by adjusting the three-way valves 31 and 37 by means of the pump 35 via the fluid line 33 and a fluid line 41 into the condenser 11.
  • the cooking appliance 1 also has fluid supply lines 45, 47 and 49.
  • the fluid supply line 49 is connected via a valve 55 and a first supply means 56, such as a nozzle, in particular in the form of a Beschwadungsdüse, with the cooking chamber 3, the Fluidzutax 47 via a valve 53 and a second feeder 54, such as a nozzle with the steam generator 5 and the fluid supply line 45 is connected via a valve 51 and a third feed 52, such as a nozzle, in particular in the form of a Ablöschdüse, with the capacitor 11.
  • water present in the steam generator 5 for generating steam during a cooking process can be conveyed via the pump 35 through the fluid lines 33 and 43 into the drain 19 in particular.
  • the lime-enriched water is thus conveyed directly bypassing the condenser 11 in the drain 19.
  • the fluid present in the condenser 11 can flow into the drain 19 by opening the valve 27.
  • the pump 25 can also be arranged between the outlet 23 and the valve 27 in order to assist the outflow of the fluid 21 from the condenser 11. Also can be crushed in the fluid 21 existing larger contaminants before they flow into the valve 27 to ensure proper operation of the valve 27.
  • a first cleaning fluid is used in a first cleaning phase.
  • the first cleaning phase may in particular be a rinsing phase for rinsing the cooking chamber 3.
  • This first cleaning fluid can on the one hand held in a first collecting container, not shown, within the cooking appliance 1 and fed to the first or second circulation circuit, in particular the cooking chamber 3 or the second collecting container performing capacitor 11 via a metering device, not shown.
  • the first cleaning fluid is produced in such a way that a user introduces a cleaning substance, in particular in tab form, into the cooking space 3.
  • This cleaning substance is then dissolved in a second cleaning fluid, in particular water.
  • This second cleaning fluid can be supplied to the cooking chamber 3, for example, by opening the valve 55 via the fluid supply line 49.
  • the second cleaning fluid is first supplied to the steam generator 5 via the fluid supply line 47 by opening the valve 53.
  • the cooking appliance 1 is shown in the state after the steam generator 5, the second cleaning fluid was supplied in the form of water.
  • the fluid 39 is water.
  • the existing in the steam generator 5 fluid 39 is heated by a heater 57.
  • the fluid 39 is supplied via the pump 35 and the three-way valve 37 and the fluid line 41 to the condenser 11.
  • the pump 25 is then the heated water through the three-way valve 31 and the fluid line 29th as the first Fluidzu slaughter 7 supplied to the cooking chamber 3.
  • the cleaning substance present in the cooking chamber 3 is dissolved and generates the first cleaning fluid.
  • the first cleaning fluid then flows via the first fluid discharge device 15 and the fluid line 13 into the condenser 11 to be recirculated therefrom via the outlet 23 through the pump 25 and via the first circulation circuit through the cooking chamber 3.
  • the first cleaning phase is completed by the further circulation of the first cleaning fluid through the cooking chamber 3.
  • the first cleaning fluid comprises, in particular, citric acid, which causes limescale residues present in the steam generator 5 to be removed.
  • the first cleaning fluid is left in the steam generator 5 for a predetermined time, in particular the first cleaning fluid is heated via the heating device 57 in order to achieve an optimum reaction speed of the acid present in the first cleaning fluid with the lime.
  • the residence time can be adapted to the water hardness and the degree of calcification of the steam generator 5.
  • the first cleaning fluid is adjusted by adjusting the three-way valve 31 and opening the valve 37 such that the pump 35 is directly connected to the drain 19 via the fluid line 43 from the steam generator 5 away.
  • the direct connection of the fluid supply device 9 of the steam generator 5, which also serves as a second fluid discharge means via the fluid line 43 with the drain 19 results in that when emptying the steam generator 5 in the steam generator 5 existing substances, such as chipped lime deposits, not through the condenser 11 must flow into the drain 19, but can be introduced directly into this. Thus, such substances can not be deposited in the capacitor 11.
  • the steam generator 5 In order to eliminate any residues of the cleaning fluid 1 that may be present in the steam generator 5, it is possible for the steam generator 5 to be flushed via the fluid supply line 47 and the valve 53 if necessary. be supplied to the water again, which is also supplied via the pump 35 to the drain 19.
  • the second cleaning phase is carried out after the first cleaning phase.
  • the second cleaning phase i. H. the supply of the first cleaning fluid into the steam generator 5 takes place simultaneously during the circulation of the first cleaning fluid through the cooking chamber 3.
  • the first cleaning fluid can be supplied to the steam generator 5 when the level within the condenser 11 is so high that fluid 21 passes through the overflow 17 could drain into the process 19.
  • the cleaning substance can be metered so that the first cleaning fluid has a comparatively high concentration of lime-dissolving substances.
  • the cleaning fluid collected in the condenser 11 has a relatively high concentration.
  • only a relatively small amount of water heated by the steam generator 5 is necessary for the dissolution of the cleaning substance.
  • a portion of the present in the condenser 11 first cleaning fluid is passed into the steam generator 5, where it is diluted by supplying more water via the Fluidzumoltechnischtechnisch 47 so that the level within the steam generator 5 to that in a steam generation means of the steam generator 5, however, without appreciably affecting the descaling properties of the first cleaning fluid.
  • a decalcification of the steam generator 5 is reached at the places where lime deposits form during a normal cooking operation.
  • the remaining first cleaning fluid collected in the condenser 11 can then be diluted to reach the maximum level within the condenser 11 and the thus diluted first cleaning fluid as a rinse solution the cooking chamber 3 are circulated.
  • This method has the advantage that the period of circulation of the first cleaning fluid through the cooking chamber 3 is substantially complete for descaling the steam generator 5 can be used, so that no additional downtime.
  • the structure of the cooking appliance 1 offers the advantage that, due to the existing recirculation circuits in the case in which descaling of the steam generator 5 by means of a cleaning substance, such as a highly concentrated acid, is necessary, this cleaning substance is fed directly into the fluid discharge device 15 in the Cooking chamber 3 can be introduced to be pumped from there via the condenser 11, the pump 25, the three-way valve 31, the fluid line 33 in the steam generator 5.
  • a cumbersome or possibly dangerous filling this cleaning substance on the steam pipe 6 omitted, since this cleaning substance by means of the pump 25 in the steam generator 5 is conveyed.
  • first and / or the second recirculation cycle with the first feeder 56, the second feeder 54 and / or the third Zu Kunststoffeinreichung 52 and / or at least one Fluidzufilmtechnisch 45, 47, 49 such
  • first, the second cleaning fluid and / or the cleaning substance through the first, second and / or third feed means and / or at least one Fluidzufilmtechnisch 45, 47, 49 can be performed for decalcification of these elements.
  • FIG. 2 shows a second embodiment of a cooking appliance 1 'according to the invention.
  • the elements of the cooking appliance 1 ' which correspond functionally to those of the cooking appliance 1 of Figure 1, bear the same reference numerals, but simply deleted.
  • a fluid discharge device 59 ' which is separate from a fluid supply device 9', is provided in the cooking appliance 1 'in the steam generator 5'.
  • the pump 35 ' is accordingly only in communication with the fluid discharge device 59'.
  • the pump 35 ' is connected to the condenser 11' via a fluid line 41 'and a vent tube 59'.
  • the cooking appliance 1 Due to this deviant connection of the steam generator 5 'with the condenser 11', the cooking appliance 1 'allows a substantially continuous circulation of the first cleaning fluid through the steam generator 5' in parallel to a circulation of the first cleaning fluid through the cooking chamber 3 'allows.
  • the first cleaning fluid 21 ' is supplied to the three-way valve 31' via the pump 25 'serving as a first and second circulating means in one and the conduit 29'.
  • the three-way valve 31 ' at least a part of the first cleaning Supply fluid via the fluid line 33 'of the second fluid supply .9' and thus the steam generator 5 'are supplied.
  • the remaining part of the first cleaning fluid is supplied to the cooking chamber 3 'via the first feed device T.
  • the first cleaning fluid is initially stored in the steam generator 5. This is done, for example, in that the pump 35 'initially turned off or at least their pump power is reduced. As a result, all areas of the steam generator 5 ', on which lime deposits form, can be decalcified by means of the first cleaning fluid.
  • the cooking appliance 1 'shown in FIG. 2 allows a circulation of the first cleaning fluid to take place in parallel through the cooking chamber 3' and the steam generator 5 ', whereby, as already mentioned, the time during which the cooking appliance is inoperable , can be reduced.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Commercial Cooking Devices (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Cookers (AREA)

Abstract

L'invention concerne un procédé de nettoyage d'un appareil de cuisson, en particulier d'un appareil de cuisson à la vapeur, procédé selon lequel, dans au moins une première phase de nettoyage, au moins un premier fluide de nettoyage est dirigé à travers au moins une partie d'un espace intérieur de l'appareil de cuisson, procédé caractérisé en ce que, dans au moins une seconde phase de nettoyage, le premier fluide nettoyage dirigé à travers l'espace intérieur, est amené, au moins partiellement, à au moins un générateur de vapeur de l'appareil de cuisson. L'invention concerne en outre un appareil de cuisson correspondant.
PCT/DE2007/000261 2006-03-03 2007-02-13 Procédé de nettoyage d'un appareil de cuisson, et appareil de cuisson correspondant WO2007098732A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006010460.9 2006-03-03
DE102006010460.9A DE102006010460B4 (de) 2006-03-03 2006-03-03 Verfahren zur Reinigung eines Gargeräts

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DE102015107597A1 (de) 2015-05-13 2016-11-17 Rational Aktiengesellschaft Reinigungsverfahren für ein Gargerät und Gargerät hierfür
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EP1953458A1 (fr) * 2007-01-30 2008-08-06 Rational AG Procédé de nettoyage d'un appareil de cuisson et appareil de cuisson correspondant
EP1980792A3 (fr) * 2007-01-30 2009-07-01 Rational AG Procédé de nettoyage d'un appareil de cuisson et appareil de cuisson correspondant
WO2014180760A1 (fr) * 2013-05-08 2014-11-13 BSH Bosch und Siemens Hausgeräte GmbH Appareil de cuisson à la vapeur
DE102015103673A1 (de) 2015-03-12 2016-09-15 Rational Ag Gargeräte-Reinigungsmitteltank und Gargerät hiermit
DE102015103671A1 (de) 2015-03-12 2016-09-15 Rational Ag Reinigungsverfahren für ein Gargerät und Gargerät hierfür
DE102015105937A1 (de) 2015-04-17 2016-11-03 Rational Aktiengesellschaft Dosierbehälter und Gargerät
DE102015208634A1 (de) 2015-05-08 2016-11-10 Rational Ag Reinigungsverfahren für ein Gargerät und Gargerät hierfür
DE102016108822A1 (de) 2015-05-12 2016-11-17 Rational Aktiengesellschaft Reinigungsmittel-Bevorratungseinrichtung und Gargerät
DE102015107488A1 (de) 2015-05-12 2016-11-17 Rational Aktiengesellschaft Reinigungsverfahren für ein Gargerät und Gargerät hierfür
DE102015107615A1 (de) 2015-05-13 2016-11-17 Rational Aktiengesellschaft Reinigungsverfahren für ein Gargerät und Gargerät hierfür
DE102015107597A1 (de) 2015-05-13 2016-11-17 Rational Aktiengesellschaft Reinigungsverfahren für ein Gargerät und Gargerät hierfür
DE102016111164A1 (de) * 2016-06-17 2017-12-21 Rational Aktiengesellschaft Verfahren zum Erzeugen und Speichern von flüssiger Chemie in einem Gargerät und Gargerät hierfür
DE202017102851U1 (de) 2017-05-11 2017-06-02 Ernst Schmeußer Reinigungsvorrichtung für ein Gargerät
EP3546834A1 (fr) 2018-03-29 2019-10-02 Angelo Po Grandi Cucine - Societa' per Azioni Four muni d'un système de lavage

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WO2007098732A3 (fr) 2007-10-18

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