EP1953458B1 - Procédé de nettoyage d'un appareil de cuisson - Google Patents

Procédé de nettoyage d'un appareil de cuisson Download PDF

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Publication number
EP1953458B1
EP1953458B1 EP20070033600 EP07033600A EP1953458B1 EP 1953458 B1 EP1953458 B1 EP 1953458B1 EP 20070033600 EP20070033600 EP 20070033600 EP 07033600 A EP07033600 A EP 07033600A EP 1953458 B1 EP1953458 B1 EP 1953458B1
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EP
European Patent Office
Prior art keywords
cleaning
fluid
cleaning fluid
inner area
fed
Prior art date
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Active
Application number
EP20070033600
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German (de)
English (en)
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EP1953458A1 (fr
Inventor
Wilhelm Reimers
Rainer Otminghaus
Gerhard Kramer
Wolfgang Breinl
Manfred Bucher
Thomas Garner
Paul Linseisen
Tobias Gayer
Stefan Dr. Rusche
Wolfgang Holzapfel
Thomas Dr. Schreiner
Björn Kuhlmann
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Rational AG
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Rational AG
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Publication date
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Priority to EP08011832A priority Critical patent/EP1980792A3/fr
Publication of EP1953458A1 publication Critical patent/EP1953458A1/fr
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Publication of EP1953458B1 publication Critical patent/EP1953458B1/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

Definitions

  • the present invention relates to a method for cleaning a cooking appliance, in particular a combi steamer or Dampfgarêts according to the preamble of claim 1.
  • the WO 02/068876 A1 a method in which a liquid consisting of water and a cleaning agent, such as a cleaner, a rinsing agent, a rinse aid and / or a decalcifier, for cleaning a cooking chamber is distributed in this.
  • a cleaning agent such as a cleaner, a rinsing agent, a rinse aid and / or a decalcifier
  • this liquid in particular via a pump, fed to a suction of a blower, distributed in the cooking chamber and then via a cooking chamber drain into an extinguishing box, from which it can be conveyed again by the pump back into the oven.
  • the disclosure DE 10 2004 001 220 B3 a cleaning arrangement for a cooking appliance with a cooking chamber, a cooking chamber inlet and a cooking chamber outlet for circulating at least one fluid, such as a cleaning fleet.
  • the cooking chamber has in this case downstream of the cooking chamber on a shut-off device, which makes it possible to establish a connection between the cooking chamber drain and a Garraceabpound or a connection between the cooking chamber and the cooking chamber inlet for circulation of the fluid through the cooking chamber.
  • a comparable procedure is from the EP 1 430 823 A1 known, in which a descaling agent from a reservoir via a connecting line, in which a metering device and a controllable shut-off valve are arranged, a steam generator is supplied.
  • the amount of descaling agent is determined as a function of the operating time and / or a determined degree of calcification of the steam generator at a maximum water level.
  • Another method for descaling of steam generators for cooking appliances using a chemical descaling agent is known from EP 1 430 823 A1 known.
  • a descaling agent is introduced outside the cooking process in the steam generator, and the steam generator is emptied after a contact time of the descaling agent and then rinsed with fresh water.
  • the not pre-published DE 10 2006 010 460 A1 discloses a method for cleaning a cooking appliance and a cooking appliance.
  • a cleaning fluid which is passed through a part of a cooking appliance, such as a cooking chamber, in a subsequent cleaning phase is at least partially supplied to a steam generator of the cooking appliance in order to achieve a decalcification.
  • This method has basically proven itself, but it has been shown that a comparatively long exposure time of the cleaning fluid is necessary for a complete descaling of 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 must take special precautions for the storage and transportation of these chemicals, making it a increased cost comes.
  • the implementation of the known from the prior art decalcifying leads to longer operational readiness failures of the cooking appliance, which also leads to production losses and thus increased operating costs.
  • the high concentration of descaling agent used in a steam generator for decalcifying it makes it necessary for it to first be diluted before it can be drained to avoid unnecessary environmental impact.
  • a filling and / or Greeschkasten in a cooking appliance in which a cleaning fluid from a cooking chamber of the cooking appliance is passed via a drain line in a Auslöschkasten and from there via a pump through a wash liquor line to an arranged in the interior outlet member, which is on a fan is directed.
  • a characteristic variable of the fan wheel which changes due to the fluid impinging on the fan wheel is evaluated in order to determine the quantity of circulated fluid.
  • Object of the present invention is therefore to further develop the generic method for cleaning a cooking appliance such that there are the disadvantages of the prior art overcomes, in particular a decalcification of a steam generator of the cooking appliance achieved while reducing the operating costs and downtime of the cooking appliance.
  • a method can be carried out with a multiplicity of third cleaning phases, water preferably being used as the fourth cleaning fluid in a first third cleaning phase, and a second cleaning substance being mixed as the fourth cleaning fluid in a second third cleaning phase following the first third cleaning phase Cleaning fluid is used and / or in a, in particular the first third cleaning phase and / or the second third cleaning phase subsequent third third cleaning phase is used as the fourth cleaning fluid water, wherein in the third third cleaning phase in particular, the fourth cleaning fluid is supplied to the second mixing vessel.
  • Cooking appliances suitable for carrying out a method according to the invention comprise a cooking chamber, a steam generator operatively connected thereto, with a boiler, at least one first fluid supply device for the cooking chamber, at least one first fluid supply device for the cooking chamber, which is in operative connection with at least one first circulation device and / or at least one third circulation device and one second circulation device a second feed device for at least water in the steam generator and at least one with at least the second circulation means and / or at least a fourth circulation means and the first circulation means in operative connection second fluid supply means of the steam generator.
  • the cooking appliance may be characterized by at least one first feeder for at least water in the oven.
  • the cooking chamber and / or the steam generator in particular via at least a first collecting container, a metering device, a first mixing container and / or at least a first shut-off device, by means of the first circulation means and / or second circulation means a first cleaning fluid, preferably comprising
  • a first cleaning fluid preferably comprising
  • the cooking chamber, the first mixing container and / or the steam generator in particular via a device connection for a domestic water installation and / or at least a second shut-off device as a second and / or as a third cleaning fluid water is supplied, in particular for forming the first cleaning fluid from a, in particular non-fluid, first cleaning substance and / or for diluting the first cleaning fluid and / or for rinsing with rinse aid.
  • Preferred cooking appliances are further characterized in that the cooking chamber comprises at least one first fluid discharge device and / or the steam generator at least one second fluid discharge device, wherein preferably at least the third circulation device is in operative connection with the first fluid discharge device and / or at least the fourth circulation device is in operative connection with the second fluid discharge device, wherein most preferably the first and third circulating means are formed in one and / or the second and fourth circulating means are formed in one.
  • embodiments may be characterized by a second collecting container, in particular in the form of an obliterating box and / or condenser, wherein preferably the second collecting container with the first, second, third and / or fourth circulating means and / or at least one third feeding means, preferably in the form of at least one Ablöschdüse and / or is connected to the device port and / or a third shut-off device in operative connection.
  • a second collecting container in particular in the form of an obliterating box and / or condenser, wherein preferably the second collecting container with the first, second, third and / or fourth circulating means and / or at least one third feeding means, preferably in the form of at least one Ablöschdüse and / or is connected to the device port and / or a third shut-off device in operative connection.
  • At least one first multi-way valve with at least one first connection to the second collecting container, at least one second connection to the first supply device and / or the first fluid supply device and / or at least one third connection to the second supply device and / or the second fluid supply device can be provided.
  • first, second and / or third feeding means each comprise at least one steaming nozzle.
  • the first fluid discharge device in particular with the interposition of the third circulation device, preferably via at least a second multi-way valve, in particular in the form of a three-way valve, with the second reservoir and / or a drain of the cooking appliance is in operative connection, preferably at least one first connection of the second multi-way valve to the second collecting container, at least one second connection of the second multiway valve to the outflow of the cooking appliance and / or at least one third connection of the second multiway valve to the first fluid discharge device is or are in operative connection, and / or the second fluid discharge device, in particular, with the interposition of the fourth circulation device, preferably via at least a third multi-way valve, in particular in the form of a three-way valve, with the second reservoir and / or the drain of the cooking appliance is in operative connection, wherein Preferably, at least one first connection of the third multiway valve to the second collection container, at least one second connection of the third multiway valve to the outflow and / or at least one third
  • the cooking chamber is in operative connection with at least one first heating device and / or fan device, and / or the steam generator is in operative connection with at least one second heating device, preferably comprising these.
  • Embodiments may also be characterized by a fifth circulation device, preferably comprising from the first circulation device, between the second collection container and the cooking chamber, and / or a sixth circulation device, preferably comprised by the second circulation device or the first circulation device and the third circulation device, between the second Collection container and the steam generator.
  • a fifth circulation device preferably comprising from the first circulation device, between the second collection container and the cooking chamber
  • a sixth circulation device preferably comprised by the second circulation device or the first circulation device and the third circulation device, between the second Collection container and the steam generator.
  • embodiments may be characterized by a seventh circulating device, preferably comprising the first circulating device, between the cooking chamber and the outflow, preferably with the interposition of a fourth shut-off device and / or an eighth circulating device, preferably comprising the second circulating device, between the steam generator and the outflow , preferably with the interposition of a fifth shut-off device.
  • a fourth cleaning fluid preferably comprising a cooking residue dissolving substance
  • the fourth cleaning fluid preferably by means of a ninth circulation means, in particular in the form of the fifth circulation means, through the cooking chamber is circulatable.
  • the second mixing vessel prefferably be in fluid communication with the second collecting vessel, a third collecting vessel and / or the cooking chamber, in particular with the interposition of a tenth circulating device.
  • the two aforementioned alternatives may be characterized in that water can be supplied to the cooking space and / or the second mixing vessel, in particular via the appliance connection and / or at least one sixth shut-off device, as a fifth cleaning fluid, in particular for forming the fourth cleaning fluid from one in particular -fluids, second cleaning substance and / or for diluting the fourth cleaning fluid and / or for rinsing.
  • first, second, third, fourth, fifth, sixth, seventh, eighth, ninth and / or tenth circulation means are formed in one, and / or the first, second, third, fourth, fifth, sixth, seventh, eighth, ninth and / or tenth circulating means comprises at least one, in particular dirt-driven, pump or include.
  • Preferred cooking appliances are furthermore characterized by at least one first level sensor detecting a fill level, in particular of the second collecting container, and / or second level sensor detecting, in particular, the steam generator, and / or at least one further sensor, in particular for detecting the temperature, in the cooking space. the steam generator and / or the second reservoir.
  • the second collecting container comprises at least one overflow device, in particular connected to the outlet, and / or a siphon.
  • preferred cooking appliances are also characterized by at least one regulating and / or control device in operative connection with the steam generator, the first and / or second heating device, the fan device, the first and / or second and / or third feeding device, the first and / or the second fluid supply device, the first, second, third, fourth, fifth, sixth and / or seventh circulation device, the first, second and / or third multi-way valve, the first and / or second fluid discharge device, the first, second, third and / or fourth Shut-off device, the metering device, the first, second and / or third level sensor, the further sensor, the overflow device, a memory device, a display device, and / or an input device for selectively carrying out a method for cleaning the cooking appliance or a method for cooking food.
  • the invention is thus based on the surprising finding that the decalcification of a steam generator of a cooking appliance, in particular in the form of a combi steamer or Dampfgarillesös, thereby can be effectively achieved that a cleaning liquid not only for cleaning a cooking chamber but also a steam generator, in particular the boiler of the steam generator , can be used specifically in at least two cleaning phases.
  • the two cleaning phases differ from one another in that in a first cleaning phase the cooking chamber and in a second cleaning phase of the steam generator are cleaned, the cleaning phase can be carried out successively or simultaneously and in a successive implementation first the steam generator and then the cooking chamber can be cleaned , wherein the amount of the cooking chamber and / or steam generator controlled cleaning fluid is controlled or regulated.
  • this cleaning liquid comprises a rinse solution comprising as chemical substance an acid, such as citric acid, for detachment and dissolution of limescale.
  • a cleaning of the cooking chamber depending on the application of the cooking appliance daily, at least weekly, carried out. For example, it may be provided that, after approximately 18 operating hours of the cooking appliance, a cleaning of the cooking chamber is to be carried out. Because of this comparatively high frequency of carrying out cleaning operations in the cooking chamber, the combination according to the invention with the performance of cleaning processes in the steam generator within the steam generator results in only relatively little calcification. Therefore, a relatively safe, non-polluting decalcifying agent can be used as cleaning fluid. In addition, the contact time of the cleaning liquid to achieve the descaling can be kept short.
  • a decalcification of the steam generator is integrated in a substantially automatic cleaning process of the cooking chamber, whereby the decalcification is no longer perceived by a user, in particular no additional actions have to be made by him for the descaling of the steam generator. Not to be neglected is also the reduction of environmental pollution. Because the wash liquor present in the cooking appliance is "recycled" or recycled for decalcifying the steam generator, the additional, very polluting decalcifying agents known from the prior art do not occur.
  • the efficiency of a cleaning of the boiler of the steam generator and the cooking chamber is thereby increased, that a descaling agent is first supplied to the steam generator, preferably in concentrated form, in order to achieve descaling of the steam generator, and is subsequently at least partially circulated through the cooking chamber , if necessary, diluted with water to achieve a final rinse.
  • the actual decalcification step of the steam generator preferably takes place parallel to a circulation of a further cleaning fluid through the cooking chamber, before said rinsing.
  • the necessary amount of descaling agent or rinse aid is available for completely descaling the steam generator when the descaling agent is first supplied to the steam generator.
  • the part of the tab containing the rinse aid can already be used for cleaning the rinse aid Garraums is partially dissolved, so that the concentration of the rinse liquor is not sufficient to achieve a complete decalcification of the steam generator.
  • the process according to the invention with the supply of a descaling agent to the steam generator, has the advantage that the cleaning liquor used for decalcification in the steam generator can also be used for rinsing the cooking chamber, the descaling agent preferably being diluted before it is used for rinsing the cooking chamber.
  • This dilution of the descaling agent which is recommended for environmental protection reasons, before the descaling is discharged from the cooking appliance, especially if biological wastewater treatment plants are used at the site of the cooking appliance, can therefore be used meaningfully to reduce the concentration of the descaling to the extent that a satisfactory final rinse of the cooking chamber is achieved.
  • the descaling agent preferably in the form of citric acid
  • a rinse with clear water take place, so that it comes to a dilution of the descaling agent and thus producing sufficient for the cooking rinse solution.
  • the desired dilution of the descaling agent is simultaneously achieved when rinsing to produce a suitable rinse liquor.
  • This sequence of a cleaning cycle within a cooking appliance offers the advantage over, for example, the use of a cleaning or rinse aid bar for producing a rinse aid or descaling fluid, which ensures that a quantity of descaling agent, in particular citric acid, required for complete decalcification of the steam generator the steam generator is available, the amount of the descaling agent can be adapted to the particular circumstances, in particular can be accurately metered, depending on a capacity of the steam generator, a degree of calcification, etc.
  • this embodiment of the invention has the advantage that a user of the cooking appliance independently of a cleaning of the cooking appliance, a separate program for carrying out a decalcification of the steam generator or steam generator can be offered or depending on an operating time of the steam generator a user performing a it can be proposed to such descaling process.
  • a first fluid supply to the cooking chamber and / or a first fluid supply to the steam generator is in operative connection with at least one circulating means, in particular connected to this, so that the cleaning liquid can be supplied under high pressure. If a cleaning fluid is introduced into the cooking chamber or steam generator only under a water pressure provided by a domestic water connection, then usually only insufficient detachment and / or flooding of impurities in the cooking chamber or limescale deposits in the steam generator can be achieved, especially since the water pressure is reduced by necessary air separation distances, so that only a reduced pressure for spraying the cleaning liquid is available.
  • the cleaning liquid to the cooking chamber or steam generator can be supplied under high pressure, resulting in a mechanical abrasion on the surfaces of the cooking chamber or the boiler of the steam generator results, so that impurities or calcifications of these surfaces can be solved better.
  • the injection into different areas of the cooking chamber or steam generator can be carried out, so that in particular by a contamination or calcification heavily affected areas, such as the surface of a radiator, can be sprayed targeted. Injecting such areas also leads to the cleaning liquid being distributed chaotically in the cooking chamber or the steam generator, in particular also on side walls which have lower impurities.
  • the cleaning liquid can be sprayed in a bottom region of the cooking chamber or steam generator in order to supply contamination or calcification particles present at the bottom to a first fluid discharge device of the cooking chamber or to a second fluid discharge device of the steam generator.
  • the bottom of the cooking chamber or steam generator is inclined in the direction of the first or second fluid discharge device.
  • the first or second fluid removal device is in operative connection with a further circulating device, in particular a dirt-driven pump.
  • a further circulation device in particular a dirt-driven pump.
  • the flushing of impurity or lime particles can be further supported by a negative pressure is generated by the further circulation device, which causes the impurities entrained with the liquid and are discharged from the cooking chamber or steam generator.
  • This embodiment of the invention offers the advantage that only a reduced amount of chemicals is required for remaining or limescale deposits. So By injecting the cleaning liquid into the cooking chamber or steam generator already a large part of the impurities or lime deposits, replaced by the mechanical cleaning effect of the spray and rinsed out of the interior or the steam generator, so that these impurities or lime deposits before the penetration of a chemical mostly detached and rinsed out.
  • the geometry of the boiler of the steam generator and / or the feed line to the boiler of the steam generator is or are such that both the feed line to the steam generator and the steam generator after draining the descaling agent automatically runs completely empty, to avoid rinsing the boiler with clear water.
  • FIG. 1 the construction of a cooking appliance 1 in the form of a combi steamer is shown.
  • the cooking appliance 1 comprises at least one sensor 2, for example for detecting the temperature, having cooking chamber 3 and a steam generator 5 having at least one sensor 4 for detecting the temperature and a level sensor 8.
  • the cooking chamber 3 is in operative connection with a first fluid supply device 7 and the steam generator 5 with a second fluid supply device 9.
  • the cooking chamber 3 is in operative connection with a fan chamber, in which a heating device and a fan device 10 are arranged.
  • the cooking appliance 1 also has a capacitor 11, in which a further sensor 12 z. B. is arranged for detecting the temperature, which is connected via a fluid line 13 to a first fluid discharge 15 of the cooking chamber 3, and the one outlet 16, an overflow 17 and a siphon 18, all of which open into an outflow 19 of the cooking appliance 1 with the interposition of a shut-off device in the form of a valve 27.
  • the drain 16 is also connected via a first circulation device in the form of a pump 25 to the first fluid supply device 7 of the cooking chamber 3. This construction makes it possible for a first cleaning fluid 21 present in the quenching box 11 to be circulated in the cooking appliance 1 via the outlet 16, the first fluid supply device 7, the cooking chamber 3, the first fluid discharge device 15 and the fluid line 13.
  • the pump 25 causes the cleaning fluid 21 can be supplied to the cooking chamber 3 via the first fluid supply 7 under high pressure.
  • a mechanical abrasion of contaminants on the surfaces of the cooking chamber 3 is thereby achieved, whereby the cleaning of the cooking chamber 3 is improved.
  • loosened impurities can be flushed out of the cooking chamber 3 into the first fluid discharge device 15 much better due to the increased pressure.
  • the first fluid supply device 7 is connected to a first supply device (not shown), for example in the form of a spray head.
  • This spray head can have at least one nozzle which can be directed onto at least one surface of the cooking chamber 3.
  • the spray head may be a rotating or moving spray head, so that substantially all surfaces of the cooking chamber 3 can be sprayed by means of a jet of the first cleaning fluid 21 and thus cleaned.
  • the cooking appliance 1 also has a second circulation device in the form of a pump 26, which connects the second fluid supply device 9 with a second supply device 54 of the steam generator 5.
  • a second cleaning fluid 39 for example via a device connection 47 for a domestic water installation, not shown, a valve 53, a fluid supply line 49 and a reflux protection 63 supplied fresh water, are introduced into the steam generator 5 under high pressure.
  • the second cleaning fluid 39 is introduced under high pressure in the steam generator 5, existing, chipped lime particles can be effectively flushed from the steam generator 5 on the bottom of the steam generator 5.
  • the second feeding device 54 may also be arranged so that further surfaces of the steam generator 5 are sprayed with the cleaning fluid 39 next to the bottom thereof.
  • the second feed device 54 is formed in such a way that an effective flushing out of contaminants present on the bottom of the steam generator 5 to a second fluid discharge device 59 is achieved.
  • the first fluid discharge 15 of the cooking chamber 3 is designed so that a cleaning fluid present in the same flows independently through the fluid line 13 into the condenser 11.
  • the first fluid discharge device 15 is in operative connection with a third circulation device, with which the cleaning fluid present in the cooking chamber 3 can be pumped into the fluid line 13.
  • a circulation device, fourth circulation device in the form of a pump 35, which is connected to the second fluid discharge device 59.
  • the pump 35 may, for example, the second existing in the steam generator 5 cleaning fluid 39 via a fluid line 41 and a vent pipe 61 to the capacitor 11, where it is z. B.
  • the pump 35 can dilute the first cleaning fluid 21.
  • the pump 35 is achieved in particular that in the region of the bottom of the steam generator 5 in the second cleaning fluid 39, a flow is generated which causes entrained at the bottom of the steam generator 5 lime deposits and pumped out of the steam generator 5 through the pump 35, so to speak If necessary, via the condenser 11 into the drain 19.
  • the second fluid supply 9 is also connected to the condenser 11 via a fluid line 30 and the pump 25 or the vent tube 61, a mixture of the first cleaning fluid 21 and second cleaning fluid 39 from the steam generator 5 in the condenser 11 via the pump 35 and from there via the pump 25 into the cooking chamber 3 and / or via the pump 26 back into the steam generator 5 arrive.
  • the fluid line 30 constitutes a bypass.
  • the valves 27 and 53 are still a valve 51 between the device port 47 and a first feeder 56 for fresh water in the cooking chamber 3 and a valve 55 between the device port 47 and a third feeder 52 for fresh water in the condenser 11, via a third fluid supply line 45.
  • the pumps 25, 26 and 35, the shut-off devices 27, 51, 53 and 55, the heaters 10, 57, the fan device 10 and the sensors 2, 4, 8 and 12 are all with a control device, not shown, of the cooking appliance 1, for example, to carry out a cleaning process as follows:
  • water present in the steam generator 5 for producing steam during a cooking process may be conveyed through the fluid line 41 into the drain 19 via the pump 35, through the condenser 11.
  • the water may pass through the pump 26, passing the non-return valve 63 to protect the appliance port 47 and the fluid line 30 via the pump 25 into the drain 19 arrive at open valve 27.
  • the pump 25 thus supports this removal of lime and can even cause a crushing of the same.
  • the first cleaning fluid 21 can be supplied to the condenser 11, for example in the form of citric acid, in order then to reach the condenser 11 via the pumps 25 and 26 into the steam generator 5 and from there via the pump 35.
  • the first cleaning fluid 21 can then be diluted with water from the appliance connection 47, for example via the third feed device 52, which is preferably shaped in the form of a nozzle, in order then to effect a rinsing of the steam generator 5.
  • the diluted cleaning fluid 21 can be circulated through the cooking chamber 3 via the pump 25, namely from the condenser 11 via a fluid line 29 and the fluid supply device 7 into the cooking chamber 3 and from there via the fluid line 13 back into the condenser.
  • FIG. 2 the schematic structure of a second cooking appliance 101 in the form of a combi steamer is shown, wherein the components of the cooking appliance 101, those of the cooking appliance 1 of FIG. 1 have correlating reference numerals by adding the number 100.
  • the cooking device 101 comprises a first interior in the form of a cooking chamber 103 and a steam generator 105.
  • the steam generator 105 In the cooking mode, the steam generator 105 generates steam, which is supplied to the cooking chamber 103 via a steam pipe 106.
  • the cooking chamber 103 has a first fluid supply device 107 and the steam generator 105 has a second fluid supply device 109.
  • the cooking appliance 101 has a capacitor 111.
  • the condenser 111 is connected via a fluid line 113 to a first fluid discharge device 115 of the cooking chamber 103.
  • the condenser 111 has a drain 116, an overflow 117 and a siphon 118, which are connected to a drain 119 of the cooking appliance 101.
  • a fluid 121 collected within the condenser 111 forms a fluid reservoir, which causes substances which are lighter than the fluid 121 to flow directly into the outflow 119.
  • a dirt-driven pump 125 and a valve 127 are still arranged.
  • the drain 116 and the pump 125 make it possible for the fluid 121 present in the condenser 111 to be supplied to the cooking chamber 103 via a line 129 and the first fluid feed device 107.
  • a fluid present in the cooking chamber 103 can flow back into the condenser 111 via the first fluid discharge device 115 and the fluid line 113. In this way, a first circulation circuit is formed.
  • a first multi-way valve in the form of a three-way valve 131 is further arranged.
  • a first connection of the three-way valve 131 is thus connected to the condenser 111, while a second connection is connected via the line 129 to the fluid supply device 107.
  • a third connection of the three-way valve 131 is also via a line 133 to the steam generator 105, namely the fluid discharge 159 with the interposition of a pump 135, and the drain 19, via a second three-way valve 137 and a fluid line 143 connected.
  • the second fluid supply device 109 and the second fluid discharge device 159 are formed in one.
  • the three-way valves 131 and 137 open up the possibility of different fluid circulations or recirculation circuits in the cooking appliance 101, namely between the cooking chamber 103, the steam generator 105 and the condenser 111, since they are respectively arranged between these three components.
  • the second three-way valve 137 is connected via a line 141 to the condenser 111, the line 143 to the drain 119 and the pump 135 to the steam generator 105.
  • Fresh water from a device port 147 may be supplied to the cooking device 101 directly via a valve 153 and a second feeder 154, in the steam generator 105. Furthermore, there is a connection, not shown, between the device port 147 and a Fluidzu meltschreib 149, via the interposition of a Valve 151 fresh water via a first feeder 156 can enter the oven 103. Also, a third fluid supply line 145 is connected to the device port 147 via a line, not shown, so that with the interposition of a valve 155 fresh water can enter a third feeder 152 for the condenser 111.
  • the condenser 111 further opens a vent pipe 161, which is also connected to the line 129, so opened a further connection between the cooking chamber 103 and the capacitor 111.
  • 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 103.
  • This first cleaning fluid can on the one hand be held in a first collecting container (not shown) within the cooking appliance 101 and fed to the cooking chamber 103 or the condenser 111 via a metering device (not shown).
  • a first collecting container not shown
  • it is preferred to produce the first cleaning fluid 101 in that a user inserts a first cleaning substance (not shown), in particular in tab shape, into the cooking space 103.
  • This first cleaning substance is then dissolved in a second cleaning fluid, in particular water.
  • This second cleaning fluid may be, for example be opened to the cooking chamber 103 by opening the valve 151 via the fluid supply line 149.
  • the second cleaning fluid is first supplied to the steam generator 105 via the appliance connection 147 by opening the valve 153.
  • the cooking appliance 101 is shown in the state in which the second cleaning fluid 139 in the form of water has already been supplied to the steam generator 105.
  • the fluid 139 present in the steam generator 105 can then be heated via a heating device 157 and then fed to the condenser 111 via the pump 135, the three-way valve 137 and the fluid line 141.
  • the pump 125 the heated water 139 is subsequently supplied to the cooking chamber 103 via the three-way valve 131 and the fluid line 129 as well as the first fluid feed device 107.
  • the first cleaning substance present in the cooking chamber 103 is dissolved and the first cleaning fluid 121 is produced.
  • the first cleaning fluid 121 then flows via the first fluid discharge device 115 and the fluid line 113 into the condenser 111 to be recirculated therefrom via the drain 116 through the pump 125 and the three-way valves 137, 131 through the cooking chamber 103.
  • the first cleaning phase is completed by the further circulation of the first cleaning fluid 121 through the cooking chamber 103.
  • first cleaning fluid 121 After completion of the circulation of the first cleaning fluid 121 through the cooking chamber 103 is then collected according to the invention in a second cleaning phase in the condenser 111 collected first cleaning fluid 121, which now represents a wash liquor due to the inclusion of dirt from the oven 103, by adjusting the three-way valves 131, 137 passed by means of the pumps 125, 135 in the steam generator 105.
  • the first cleaning fluid 121 comprises, in particular, citric acid, which causes limescale residues present in the steam generator 105 to be removed.
  • the first cleaning fluid 121 is left in the steam generator 105 for a predetermined time, in particular heated by the heater 157 in order to achieve an optimum reaction rate of the acid present in the first cleaning fluid 121 with the lime.
  • the residence time can be adapted to the water hardness and the degree of calcination of the steam generator 105.
  • the first cleaning fluid 121 is removed by re-adjusting the three-way valves 131, 137 via the pump 135 and the fluid line 143 directly through the drain 119.
  • the direct connection of the steam generator 105 with the drain 119 causes that when emptying the steam generator 105 in the steam generator 105 existing substances, such as chipped limescale, do not have to flow through the condenser 111 into the drain 119, but can be introduced directly into this , Thus, such substances can not be deposited in the capacitor 111.
  • fresh water may again be supplied to the steam generator 105 for flushing via the device connection 147 and the valve 153, which is likewise supplied to the drain 119 via the pump 135.
  • the second cleaning phase is carried out after the first cleaning phase.
  • the second cleaning phase ie the supply of the first cleaning fluid into the steam generator 105, takes place simultaneously with the circulation of the first cleaning fluid through the cooking chamber 103.
  • the second cleaning phase ie the supply of the first cleaning fluid into the steam generator 105
  • the second cleaning phase takes place simultaneously with the circulation of the first cleaning fluid through the cooking chamber 103.
  • at least part of the circulated first cleaning fluid must be partially conducted into the steam generator. This takes place, in particular, as a function of a fluid level within the condenser measured by means of a fill level sensor (not shown).
  • the first cleaning fluid can then be supplied to the steam generator when the level within the condenser is so high that the first cleaning fluid could flow into the drain via the overflow.
  • the first 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 has a relatively high concentration.
  • only a relatively small amount of water heated by the steam generator is necessary for the dissolution of the first cleaning substance.
  • a part of the first cleaning fluid present in the condenser is led into the steam generator, where it is supplied by supplying more Water is diluted so that the level within the steam generator 105 corresponds to that in a steam generation by means of the steam generator, but without appreciably influencing the descaling properties of the first cleaning fluid.
  • a decalcification of the steam generator is achieved at the places where lime deposits form during a normal cooking operation.
  • the remaining first cleaning fluid collected in the condenser can then be diluted to reach the maximum level within the condenser and circulate the thus diluted first cleaning fluid as a clear rinse solution through the cooking chamber .
  • This method has the advantage that the period of circulation of the first cleaning fluid through the cooking chamber can be used substantially completely for a descaling of the steam generator, so that no additional downtime occurs.
  • the structure of the cooking appliance offers the advantage that, due to the existing circulating circuits in the case in which descaling of the steam generator by means of a first cleaning substance, such as a highly concentrated acid, is necessary, this first cleaning substance can be introduced directly into the fluid removal device of the cooking chamber, to be pumped from there via the condenser in the steam generator. Thus, a cumbersome or dangerous under certain circumstances filling this first cleaning substance, for example. About the steam nozzle omitted, since this first cleaning substance is pumpable into the steam generator.
  • a first cleaning substance such as a highly concentrated acid
  • the cooking appliance 101 thus offers the possibility of carrying out a method according to the invention.
  • the second cleaning phase described above is essentially carried out prior to the first cleaning phase.
  • a first cleaning fluid containing a, in particular highly concentrated, descaling agent, such as citric acid or phosphoric acid is supplied. This can be achieved by first producing the first cleaning fluid in the condenser 111 as described above. Subsequently, the first cleaning fluid 121 is supplied via the pumps 125, 135 through a suitable adjustment of the three-way valves 131, 137 via the fluid line 133 of the fluid supply 159 and thus the steam generator 105.
  • the first cleaning fluid 121 is supplied by the pump 125 and / or by means of the pump 135 under high pressure, so that in the steam generator 105 existing lime deposits are already mechanically detached by spraying the affected surfaces.
  • the first cleaning fluid 121 then effects a chemical cleaning or descaling of the surfaces of the steam generator 105, in particular of the surfaces of the heating device 157.
  • a cleaning of the cooking chamber 103 of the cooking appliance 101 can be performed, namely by appropriate settings of the three-way valves 131, 137 and pumps 125, 135, whereby the service life of the cooking appliance 101 for cleaning significantly can be reduced.
  • the first cleaning fluid 121 present in the steam generator 105 can be used as a rinse solution for a final rinse of the cooking chamber 103.
  • first fresh water in the steam generator 105 is introduced via the feeder 154, in order to achieve a dilution of the present in the steam generator 105 descaling agent.
  • the descaling agent is supplied via the pump 135 by suitable adjustment of the multi-way valve 131 via the line 129 of the fluid supply device 107 and thus the cooking chamber 103. Subsequently, the clear rinse liquor thus formed can be circulated through the cooking chamber 103 by means of the previously described circulation circuit and finally be discharged from the cooking appliance 101 via the drain 119.
  • the circulation of the rinse liquor through the cooking chamber 103 represents a first cleaning phase.
  • FIG. 3 is a third embodiment of a cooking appliance 101 i shown.
  • the elements of the cooking appliance 101 i which functionally those of the cooking appliance 101 of FIG. 2 correspond, bear the same reference numerals, however, indicated by a superscript "i".
  • the fluid discharge 159 i provided opposite the fluid supply 109 i , wherein the fluid supply 109 i in turn to the device port 147 'via a line 149 i and a valve 153' and with the cooking chamber 103 i via a line l33 i and finally with the vent pipe 161 i with the interposition of the backflow preventer 163 i is connected.
  • the pump 135 i is accordingly only in communication with the fluid discharge device 159 i .
  • the pump 135 i is connected to the condenser 111 i via a fluid line 141 i and the venting tube 161 i .
  • the first cleaning fluid is supplied via the pump 121 i 125 i serving as a first and second circulating means, and the line 129 to the three-way valve 131 i i.
  • the three-way valve 131 i By appropriate adjustment of the three-way valve 131 i , at least a portion of the first cleaning fluid 121 i can be supplied via the fluid line 133 i to the second fluid feeder 109 i and thus to the steam generator 105 i .
  • the remaining part of the first cleaning fluid 121 i is fed to the cooking space 103 i via the first feed device 107 i .
  • the i existing in the cavity 103 first cleaning fluid can then 113 i running in the capacitor 111 i via the first Fluidabloom adopted 115 i, and the fluid line, whereas in the steam generator 105 i existing first cleaning fluid 121 i by the pump 135 i via the Fluidab technically adopted 159 i and the fluid line 141 i i after passing through the vent tube 161 i the capacitor 111 i is supplied.
  • a bypass 130 i is provided, between the vent pipe 161 i and the capacitor 111 i .
  • the first cleaning fluid 121 i is first accumulated in the steam generator 105 i .
  • This is done, for example, characterized in that the pump 135 i is initially switched off or at least reduce its pumping power.
  • all areas of the steam generator 105 i on which calcareous deposits form, can be decalcified by means of the first cleaning fluid 121 i .
  • the first cleaning fluid present in the cooking chamber 103 i can then run back into the condenser 111 i via the first fluid discharge device 115 i and the fluid line 113 i , whereas the first cleaning fluid present in the steam generator 105 i is pumped by the pump 135 i via the fluid discharge device 159 i and the fluid line 141 i i via the vent pipe 161 i the capacitor 111 i is supplied.
  • a second cleaning phase in which a first cleaning fluid in the form of a descaling agent is first supplied to the steam generator 105 i for descaling and this descaling agent, in particular after dilution, in a temporally subsequent first cleaning phase the cooking chamber 103 i , in particular as a rinse aid, can be supplied or circulated through it.
  • a descaling agent introduced into the steam generator 105 i can first be diluted.
  • the rinse aid By a suitable setting of the three-way valve 131 i that the steam generator 105 i fed in the second purification phase descaling agent via the pump 125 i, and the fluid delivery device 107 i 103 i supplied to the cooking chamber as a rinse aid then, the rinse aid, preferably several times through the cooking chamber 103 i in this first cleaning phase, which takes place after the second cleaning phase, is circulated.
  • FIG. 4 a fourth embodiment of a cooking appliance 101 ii is shown.
  • the individual elements of the cooking appliance 101 ii , those of the cooking appliance 101 i out FIG. 3 correspond to the same reference numerals, but with two superscript "i" s.
  • the cooking appliance 101 ii reflux fuse 163 "are added up.
  • this reflux fuse causes remains that in the case where the steam generator 105 ii is filled with a fluid, excess fluid to the vent tube 161 ii, and thus the Condenser 111 ii is fed, where it flows over the overflow 117 ii in the drain 119 ", and does not get back to the device port 147 ii , which could lead to contamination of water in a domestic water installation, not shown.
  • FIG. 5 is a fifth embodiment of a cooking appliance 101 to see iii .
  • the individual elements of the cooking appliance 101 iii , those of the in FIG. 4 101 correspond ii cooking appliance illustrated bear the same reference numerals, but with three superscript "i" s.
  • FIG. 6 a sixth embodiment of a cooking appliance 101 iv is shown.
  • the structure of the cooking appliance 101 iv substantially corresponds to that of the in FIG. 5 illustrated cooking appliance 101 iii , so that the same reference numerals are used, but characterized by a superscript of "iv".
  • Only the course of the fluid line 133 iv is changed.
  • the fluid line 133 iv leads now by the rotary directional control valve 131 iv directly to the feeder 154 iv.
  • a better flushing of existing on the bottom of the steam generator 105 iv limescale is achieved.
  • FIG. 7 a seventh embodiment of a cooking appliance 101 v is shown.
  • the elements corresponding to those of FIG. 6 101 correspond iv cooking appliance illustrated bear the same reference numerals, however, by high position of "v" in.
  • the cooking appliance 101 v has a further circulating device in the form of a pump 126 v , similar to the cooking appliance 1 of the FIG.
  • the steam generator 105 may be via the pump 125 v under high pressure are supplied to v, but also a via fluid line 149 v supplied cleaning fluid in the form of fresh water from the cooking appliance connection 147 v is supplied via the pump 126 v under high pressure. This leads to an improved mechanical cleaning of the steam generator 105 v , in particular by an efficient flushing of existing on the bottom of the steam generator 105 v lime deposits.
  • FIG. 8 an eighth embodiment of a cooking appliance 101 vi is shown, in which the same reference numerals as in FIGS. 2 to 7 but marked with a superscript "vi".
  • This cooking device 101 vi is essentially different from the one in FIG. 7 shown cooking appliance 101 v in that the course of the fluid line 133 vi has been changed.
  • the fluid line 133 vi opens from the three-way valve 131 vi directly into the steam generator 105 iv , there in the upper area.
  • the fluid line 133 iv is connected to a preferably detachable, not shown feeding means so that a via fluid line 133 iv the steam generator 105 iv supplied fluid to at least one surface of the steam generator 105 iv, in particular a surface of the heater 157 iv is sprayed to achieve mechanical detachment of limescale present in the steam generator 105 iv .
  • FIG. 9 a ninth embodiment of a cooking device 201 is shown as a schematic representation.
  • the cooking device 201 is also designed as a combi steamer. Furthermore, the components of the cooking device 201, those of the cooking device 1 of FIG. 1 provided with correlating reference numerals, however, the reference numerals are increased by 200.
  • the cooking device 201 comprises a first interior in the form of a cooking chamber 203 and a steam generator 205.
  • the steam generator 205 In a cooking mode, the steam generator 205 generates steam, which can be supplied to the cooking chamber 203 via a steam pipe 206.
  • the cooking chamber 203 has a first fluid supply device 207.
  • the steam generator 205 has a second Fluid supply 209 on.
  • the second fluid supply device 209 makes it possible, as will be explained in more detail later, that a boiler 210 of the steam generator 205, the boiler 210 representing a second interior of the cooking device 201, a first cleaning fluid can be supplied.
  • the cooking appliance 201 has a condenser 211, which constitutes a second collecting container.
  • the condenser 211 is connected via a fluid line 213 to a first fluid discharge device 215 of the cooking chamber 203. Furthermore, the condenser 211 has a drain 216, an overflow 217 and a siphon 218. Both the drain 216 and the overflow 217 and the siphon 218 are connected to a drain 219 of the cooking appliance 201. In fluid communication with the drain 216 are a dirt-driven pump 225, which is a first and fifth circulation means, and a valve in the form of a ball valve 227, which is a first and second multi-way valve.
  • the drain 216, the ball valve 227 and the pump 225 allow fluid 221 present in the condenser 211 to be supplied to the cooking chamber 203 via a line 229 and the first fluid feed device 207.
  • a fluid present in the cooking chamber 203 can flow back into the condenser 211 via the first fluid discharge device 215 and the fluid line 213. This allows a recirculation loop to be formed for a first cleaning phase.
  • the boiler 210 of the steam generator 205 has a second fluid discharge device 259, which is connected via a pump 235, which serves for emptying the boiler 210 and represents a fourth and eighth circulation means, and a fluid line 241 with a vent tube 261 of the capacitor 211.
  • the individual elements of the cooking appliance 201 can be supplied fresh water from a device port 247 in various ways.
  • the steam generator 205 via a valve 253 and a second feeder 254 fresh water 263, in particular for steam generation, are supplied.
  • the device port 247 is connected via a line, not shown, with a third fluid supply 245, which allows the supply of fresh water via a third supply means in the form of a Ablöschdüse 252 for the condenser 211 via a valve 255.
  • the cooking appliance 201 has a first mixing container in the form of a care agent or rinse aid drawer 267 and a second mixing container in the form of a detergent drawer 265.
  • the cleaner drawer 265 is connected to the condenser 211 via a pump 269, which constitutes a tenth circulating device, and a fluid line 271.
  • a cleaning agent 273, which is a second cleaning substance can be arranged in the detergent drawer 265.
  • a rinse aid 275 can be arranged in the care agent drawer 267.
  • the care agent drawer 267 is connected to the second fluid supply device 209 via a pump 277, which constitutes a second circulation device, and a fluid line 279.
  • the detergent drawer 265 may be supplied via a fluid line 281, which is connected via a valve 283 to the device port 247, fresh water.
  • the care agent drawer 267 can be supplied via a fluid line 285 and a valve 287 fresh water from the device port 247.
  • a first sensor in the form of a level electrode 204 is arranged in the boiler 210.
  • the cooking appliance 201 in contrast to the previously described cooking appliances, another component in the form of a door drip tray 289, which is connected via a fluid line 291 to the drain 219 on.
  • the door drip tray 289 is arranged in the region of a cooking chamber door of the cooking appliance 201, not shown, and serves condensate water, which can collect on the inside of the cooking chamber door, collect and supply the drain 219.
  • FIGS. 10a to 10q Based on FIGS. 10a to 10q the implementation of a cleaning method according to the invention in the cooking appliance 201 will be explained below.
  • a rinsing liquid is supplied to the cooking chamber 203 in a first cleaning phase, which is supplied to the boiler 210 of the steam generator 205 as descaling liquid in a second cleaning phase, wherein both the final rinse liquid and the decalcifying liquid are formed as the first cleaning fluid, the following third cleaning phases are performed first ,
  • a fourth cleaning fluid in the form of fresh water is supplied to the condenser 211.
  • This phase of cleaning is in FIG. 10a shown. If a predetermined level is reached in the condenser 211, the pump 225 is started and, by a suitable adjustment of the ball valve 227, the fourth cleaning fluid present in the condenser 211 is supplied to the cooking chamber 203 via the fluid line 229 and the fluid supply device 207. The fourth cleaning fluid entering the cooking chamber 203 flows via the fluid discharge device 215 and the fluid line 213 back into the condenser 211, in order to be circulated again through the cooking chamber 203.
  • This revolution is in FIG. 10b and leads to a pre-rinsing phase, which serves to flush out the coarsest dirt and fats and oils from the cooking chamber 203 and to soften encrustations in the cooking chamber 203.
  • This pre-purging is supported by the fact that the steam generator 205 is put into operation and the cooking chamber 203 via the steam pipe 206 as the sixth cleaning fluid steam is supplied by heating the fresh water 263.
  • this pre-purging phase which represents a first third cleaning phase, is completed, the fourth cleaning fluid collected in the condenser 211 is discharged above the ball valve 227 into the outflow 219.
  • the state after draining is in FIG. 10c shown.
  • a new fourth cleaning fluid is then formed by supplying the cleaning drawer 265 with a fifth cleaning fluid in the form of fresh water via the fluid line 281.
  • the fresh water is distributed so that the detergent 273, which is supplied in particular in tab form the detergent drawer 265 before performing a cleaning of the cooking appliance, dissolves.
  • the fourth cleaning fluid thus formed is supplied to the condenser 211. In this way, a cleaner solution is flushed into the condenser 211.
  • the cleaning solution is used in particular for the chemical solution of contamination present in the cooking chamber 203, such as cooking residues.
  • the fourth cleaning fluid present in the condenser 211 is supplied to the cooking chamber 203 via the fluid line 229 and the fluid feed device 207 in order to carry out this second third cleaning phase.
  • the steam generator 205 is operated in such a way that the cooking chamber 203 is additionally supplied with steam via the steam nozzle 206 in order to enhance the cleaning effect of the cleaning solution. If a sufficient cleaning of the cooking chamber 203 has been achieved by the circulation of this fourth cleaning fluid through the cooking chamber 203, then the cleaning fluid present in the condenser 211 is discharged again via the outflow 219. Subsequently, the detergent drawer 265 is again supplied fresh water to perform a third third cleaning phase.
  • the supplied into the detergent drawer 265 fresh water is passed through the pump 269 in the condenser 211 and the so present in the condenser 211 cleaning fluid is circulated again through the pump 225 through the cooking chamber 203.
  • This state of the cooking device 201 is in FIG. 10e shown.
  • This so-called intermediate rinsing phase dissolved dirt residues are removed in the cooking chamber 203 and, furthermore, a neutralization of the cooking chamber 203 is carried out.
  • This cleaning phase is also supported by the supply of steam through the steam pipe 206.
  • fresh water is also supplied to the condenser 211 via the quenching nozzle 252 for carrying out the intermediate rinsing phase.
  • the second cleaning phase is initially carried out, ie, a second cleaning fluid is supplied to the second interior in the form of the boiler 210.
  • a first cleaning fluid in the Boiler 210 is routed.
  • fresh water is introduced into the care agent drawer 267.
  • the rinse aid 275 is thus sprayed with a second cleaning fluid in the form of the fresh water, and the rinse aid 275, which is a first cleaning substance, is dissolved to form the first cleaning fluid.
  • the first cleaning fluid thus formed is supplied via the second circulation device in the form of the pump 277 and the fluid line 279 to the second fluid supply device 209 of the steam generator 205.
  • the second cleaning phase before the first cleaning phase in which the first cleaning fluid in the form of the rinsing solution is supplied to the cooking chamber 203, performed.
  • the level in the boiler 210 is increased by supplying more fresh water via the feeder 254 in the steam generator 205 in a next step. This takes place until a fourth threshold value of the fill level in the steam generator 205 is registered via the level electrode 204.
  • This filling of the steam generator 205 is in Figure 10g shown.
  • the steam generator 205 supplied fresh water is a third cleaning fluid.
  • the pump 235 Upon reaching the fourth threshold, as in FIG. 10h 3, the pump 235 is set in operation, so that the first cleaning fluid present in the steam generator 205 is led via the fluid line 241 and the venting pipe 261 into the condenser 211.
  • This branching off of a rinsing solution for the cooking chamber 203 from the steam generator 205 via the pump 235 initiates the first cleaning phase, ie the passage of the first cleaning fluid through the cooking chamber 203.
  • the second cleaning phase and the first cleaning phase take place parallel in time.
  • both the part of the first cleaning fluid 239 present in the steam generator 205 and the part of the first cleaning fluid 239 present in the condenser 211 are diluted by supplying a third cleaning fluid in the form of fresh water.
  • FIG. 10j the next stage of the cleaning process of the cooking device 201 is shown.
  • the pump 225 By the pump 225, the existing in the condenser 211 first cleaning fluid 239 is circulated through the cooking chamber 203. This leads to a decalcification and a gloss maintenance of the cooking chamber 203.
  • the cleaning fluid 239 present in the steam generator 205 is heated to 80.degree.
  • the feeding device 254 is supplied with fresh water to the first cleaning fluid 239 so that there is thorough mixing and thus dissolution of any temperature stratification present.
  • the first cleaning fluid present in the steam generator 205 is reheated to 80 ° C. and again supplied with fresh water to overcome any temperature stratification present. This injection is preferably carried out a total of three times until the maximum level of the cleaning fluid 239 in the steam generator 205 is reached.
  • the temperature in the steam generator 205 is kept constant at 80 ° C. and the descaling of the steam generator 205 is carried out.
  • the first cleaning fluid present in the condenser 211 is discharged via the outflow 219 and supplied to the condenser 211 either via the quenching nozzle 252 or via the detergent drawer 265, the pump 269 and via the fluid line 271 fresh water.
  • This fresh water supplied is guided by the pump 225 through the cooking chamber 203.
  • the steam generator 205 is rinsed with a third cleaning fluid in the form of fresh water. This serves, in particular, to remove residues of the first cleaning fluid and any calcareous residues present in the boiler 310 from the steam generator 205.
  • both the care agent drawer 267 is supplied via the fluid line 285 and the steam generator 205 via the feeder 254 fresh water.
  • the fresh water supplied into the care agent drawer 267 is supplied to the boiler 210 of the steam generator 205 via the pump 277 and the fluid line 279 and the fluid supply device 209.
  • the fresh water supplied to the steam generator 205 is supplied directly via the pump 235 and the condenser 211 to the drain 219 of the cooking appliance 201.
  • Fresh water is supplied to the steam generator 205 via the fluid supply device 209 from the care agent drawer 267 and this supplied fresh water is supplied via the pump 235, the line 241 and the vent pipe 261 to the condenser 211 and from there to the drain 219.
  • the cooking chamber 203 is heated to about 90 ° C during this time via a heater, not shown, in order to achieve a drying of the cooking chamber 203.
  • the steam generator 205 is still supplied fresh water until about the level electrode 204, a predetermined level is reached, as in FIG. 10q is shown. While in FIG.
  • 10q phase shown is finally the temperature within the cooking chamber to a temperature of 170 ° C increased to perform a second sanitary drying.
  • the cooking appliance is again available for carrying out a cooking process and is cleaned as best as possible by the cleaning process described above, in particular the cooking chamber 203 is cleaned of impurities from previous cooking processes and the steam generator 205 decalcifies.
  • the cooking appliances 1, 101 i - 101 iv and 201 are not to be considered separately, but their structure can be combined with each other.

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

Claims (30)

  1. Procédé de nettoyage d'un appareil de cuisson (1, 101 à 101vi, 201), en particulier un four mixte air chaud et vapeur ou un appareil de cuisson à la vapeur, dans lequel
    un premier liquide de nettoyage (21, 121 à 121vi, 221) est amené en particulier sous haute pression au moins partiellement à un premier espace intérieur (3, 103 à 103vi, 203) au moyen d'un premier dispositif de circulation (25, 125 à 125vi, 225), qui est en liaison fonctionnelle avec un premier dispositif d'acheminement de liquide (7, 107 à 107vi, 207), et/ou au moins partiellement à un deuxième espace intérieur (5, 105 à 105vi, 205) au moyen d'un deuxième dispositif de circulation (26, 126 à 126vi, 277), qui est en liaison fonctionnelle avec un deuxième dispositif d'acheminement de liquide (54, 59, 154 à 154vi, 159 à 159vi, 209, 254, 259), et
    le premier liquide de nettoyage (21, 121 à 121vi, 221) est évacué du premier espace intérieur (3, 103 à 103vi, 203) au moyen d'un troisième dispositif de circulation, qui est en liaison fonctionnelle avec un premier dispositif d'évacuation de liquide (15, 115 à 115vi, 215) du premier espace intérieur (3, 103 à 103vi, 203), et/ou est évacué du deuxième espace intérieur (5, 105 à 105vi, 205) au moyen d'un quatrième dispositif de circulation (35, 135 à 135vi, 235), qui est en liaison fonctionnelle avec un deuxième dispositif d'évacuation de liquide (54, 59, 154 à 154vi, 159 à 159vi, 209, 254, 259) du deuxième espace intérieur (5, 105 à 105vi, 205), caractérisé en ce que
    dans une première phase de nettoyage, le premier liquide de nettoyage (21, 121 à 121vi, 221) est guidé à travers au moins une partie du premier espace intérieur (3, 103 à 103vi, 203) et dans une deuxième phase de nettoyage, le premier liquide de nettoyage (21, 121 à 121vi, 221) est amené au moins partiellement au deuxième espace intérieur (5, 105 à 105vi, 205), la quantité du premier liquide de nettoyage (21, 121 à 121vi, 221) amenée au premier espace intérieur (3, 103 à 103vi, 203) et/ou la quantité du premier liquide de nettoyage (21, 121 à 121vi, 221) amenée au deuxième espace intérieur (5, 105 à 105vi, 205) est/sont commandée(s) ou régulée(s), en particulier au moyen d'un premier obturateur à plusieurs voies (131 à 131vi), et le premier liquide de nettoyage (21, 121 à 121vi, 221) dans les première et deuxième phases de nettoyage est amené sous une forme liquide,
    un espace de cuisson étant choisi en tant que premier espace intérieur (3, 103 à 103vi, 203) dans la première phase de nettoyage, et un réservoir (210) d'un générateur de vapeur étant choisi en tant que deuxième espace intérieur (5, 105 à 105vi, 205) dans la deuxième phase de nettoyage, la première et la deuxième phases de nettoyage étant mises en oeuvre de manière décalée dans le temps l'une par rapport à l'autre pendant une première période de temps, de sorte que la première et la deuxième phases de nettoyage sont mises en oeuvre de manière successive et/ou alternée pendant la première période de temps et la deuxième phase de nettoyage est mise en oeuvre au moins une fois avant la première phase de nettoyage.
  2. Procédé selon la revendication 1, caractérisé en ce que
    la première et la deuxième phases de nettoyage sont mises en oeuvre pendant une deuxième période de temps en se chevauchant au moins partiellement dans le temps.
  3. Procédé selon la revendication 2, caractérisé en ce que
    la première et la deuxième phases de nettoyage sont mises en oeuvre simultanément pendant la deuxième période de temps.
  4. Procédé selon la revendication 2 ou 3, caractérisé en ce que
    la deuxième phase de nettoyage est mise en oeuvre d'abord au moins une fois et les première et deuxième phases de nettoyage sont mises en oeuvre ensuite simultanément au moins une fois.
  5. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que
    le premier liquide de nettoyage (21, 121 à 121vi, 221) est amené au moins partiellement à l'appareil de cuisson (1, 101 à 101vi, 201) avant la mise en oeuvre des première et/ou deuxième phase(s) de nettoyage, en étant stocké au moins temporairement dans un premier récipient collecteur et/ou en étant amené, en vue de la mise en oeuvre des première et/ou deuxième phase(s) de nettoyage, au premier espace intérieur (3, 103 à 103vi, 203), au deuxième espace intérieur (5, 105 à 105vi, 205), au premier dispositif d'évacuation de liquide (15, 115 à 115vi, 215) depuis le premier espace intérieur (3, 103 à 103vi, 203), au premier dispositif d'acheminement de liquide (7, 107 à 107vi, 207) vers le premier espace intérieur (3, 103 à 103vi, 203), au deuxième dispositif d'évacuation de liquide (54, 59, 154 à 154vi, 159 à 159vi, 209, 254, 259) depuis le deuxième espace intérieur (5, 105 à 105vi, 205) et/ou au deuxième dispositif d'acheminement de liquide (54, 59, 154 à 154vi, 159 à 159vi, 209, 254, 259) vers le deuxième espace intérieur (5, 105 à 105vi, 205), en particulier de manière dosée par l'intermédiaire d'un premier dispositif de dosage.
  6. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que
    le premier liquide de nettoyage (21, 121 à 121vi, 221) est produit au moins partiellement à l'intérieur de l'appareil de cuisson (1, 101 à 101vi, 201) avant la mise en oeuvre des première et/ou deuxième phase(s) de nettoyage, une première substance de nettoyage est de préférence mélangée avec un deuxième liquide de nettoyage (39, 139 à 139vi, 239), de préférence de l'eau, la première substance de nettoyage est en particulier dissoute dans le deuxième liquide de nettoyage (39, 139 à 139vi, 239), et/ou
    le premier liquide de nettoyage (21, 121 à 121vi, 221) est dilué par mélange avec le deuxième liquide de nettoyage (39, 139 à 139vi, 239),
    la première substance de nettoyage étant de préférence amenée, avant et/ou au début de la première phase de nettoyage, au premier espace intérieur (3, 103 à 103vi, 203), au premier dispositif d'évacuation de liquide (15, 115 à 115vi, 215) et/ou au premier dispositif d'acheminement de liquide (45, 145 à 145vi, 245) et/ou, avant et/ou au début de la deuxième phase de nettoyage, au deuxième espace intérieur (5, 105 à 105vi, 205), au deuxième dispositif d'évacuation de liquide (54, 59, 154 à 154vi, 159 à 159vi, 209, 254, 259), au deuxième dispositif d'acheminement de liquide (54, 59, 154 à 154vi, 159 à 159vi, 209, 254, 259) et/ou à un premier récipient de mélange (267), en particulier de manière dosée par l'intermédiaire d'un deuxième dispositif de dosage.
  7. Procédé selon la revendication 6, caractérisé en ce que
    le deuxième liquide de nettoyage (39, 139 à 139vi, 239) est chauffé, en particulier avant un mélange avec la première substance de nettoyage et/ou une solution de la première substance de nettoyage.
  8. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que
    le premier liquide de nettoyage (21, 121 à 121vi, 221) et/ou la première substance de nettoyage et/ou le deuxième liquide de nettoyage (39, 139 à 139vi, 239) est/sont collecté(es) dans un deuxième récipient collecteur (11, 111 à 111vi, 211) après un passage à travers le premier et/ou deuxième espaces intérieurs (3, 103 à 103vi, 203, 5, 105 à 105vi, 205),
    le premier liquide de nettoyage (21, 121 à 121vi, 221) et/ou la première substance de nettoyage et/ou le deuxième liquide de nettoyage (39, 139 à 139vi, 239) étant de préférence amené(es) à recirculer dans le premier espace intérieur (3, 103 à 103vi, 203) depuis le deuxième récipient collecteur (11, 111 à 111vi, 211) au moyen du premier dispositif de circulation (25, 125 à 125vi, 225) et/ou dans le deuxième espace intérieur (5, 105 à 105vi, 205) depuis le deuxième récipient collecteur (11, 111 à 111vi, 211) au moyen du deuxième dispositif de circulation (35, 135 à 135vi, 235, 26, 126 à 126vi).
  9. Procédé selon la revendication 8, caractérisé en ce que
    le premier liquide de nettoyage (21, 121 à 121vi, 221) et/ou la première substance de nettoyage et/ou le deuxième liquide de nettoyage (39, 139 à 139vi, 239) est/sont amené(es) au premier obturateur à plusieurs voies (131 à 131vi) depuis le deuxième récipient collecteur (11, 111 à 111vi, 211).
  10. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que
    le premier liquide de nettoyage (21, 121 à 121vi, 221) et/ou la première substance de nettoyage et/ou le deuxième liquide de nettoyage (39, 139 à 139vi, 239) est/sont transporté(es) depuis le première espace intérieur (3, 103 à 103vi, 203), de préférence dans le deuxième récipient collecteur (11, 111 à 111vi, 211) et/ou dans une goulotte de vidange (19, 119 à 119vi, 219) de l'appareil de cuisson (1, 101 à 101vi, 201), et/ou
    le premier liquide de nettoyage (21, 121 à 121vi, 221) et/ou la première substance de nettoyage et/ou le deuxième liquide de nettoyage (39, 139 à 139vi, 239) est/sont transporté(es) depuis le deuxième espace intérieur (5, 105 à 105vi, 205), de préférence dans le deuxième récipient collecteur (11, 111 à 111vi, 211) et/ou dans la goulotte de vidange (19, 119 à 119vi, 219) de l'appareil de cuisson (1, 101 à 101vi, 201).
  11. Procédé selon l'une quelconque des revendications 8 à 10, caractérisé en ce que
    la ou les quantité(s) du premier liquide de nettoyage (21, 121 à 121vi, 221) et/ou de la première substance de nettoyage et/ou du deuxième liquide de nettoyage (39, 139 à 139vi, 239) amenée(s) au deuxième récipient collecteur (11, 111 à 111vi, 211) depuis le premier espace intérieur (3, 103 à 103vi, 203) et/ou la ou les quantité(s) du premier liquide de nettoyage (21, 121 à 121vi, 221) et/ou de la première substance de nettoyage et/ou du deuxième liquide de nettoyage (39, 139 à 139vi, 239) amenée(s) à la goulotte de vidange (19, 119 à 119vi, 219) de l'appareil de cuisson (1, 101 à 101vi, 201) depuis le premier espace intérieur (3, 103 à 103vi, 203) de l'appareil de cuisson (1, 101 à 101vi, 201), est/sont commandée(s) ou régulée(s), en particulier au moyen d'un deuxième obturateur à plusieurs voies (137), et/ou
    la ou les quantité(s) du premier liquide de nettoyage (21, 121 à 121vi, 221) et/ou de la première substance de nettoyage et/ou du deuxième liquide de nettoyage (39, 139 à 139vi, 239) amené(es) au deuxième récipient collecteur (11, 111 à 111vi, 211) depuis le deuxième espace intérieur (5, 105 à 105vi, 205) et/ou la ou les quantité(s) du premier liquide de nettoyage (21, 121 à 121vi, 221) et/ou de la première substance de nettoyage et/ou du deuxième liquide de nettoyage (39, 139 à 139vi, 239) amené(es) à la goulotte de vidange (19, 119 à 119vi, 219) de l'appareil de cuisson (1, 101 à 101vi, 201) depuis le deuxième espace intérieur (5, 105 à 105vi, 205) est/sont commandée(s) ou régulée(s), en particulier au moyen d'un troisième obturateur à plusieurs voies (137).
  12. Procédé selon l'une quelconque des revendications 5 à 11, caractérisé ce que
    l'acheminement du premier liquide de nettoyage (21, 121 à 121vi, 221) et/ou de la première substance de nettoyage et/ou du deuxième liquide de nettoyage (39, 139 à 139vi, 239) vers le premier et/ou le deuxième espace(s) intérieur(s) (3, 103 à 103vi, 203, 5, 105 à 105vi, 205) a lieu en fonction d'un premier état de remplissage du premier récipient collecteur et/ou d'un deuxième état de remplissage du deuxième récipient collecteur (11, 111 à 111vi, 211).
  13. Procédé selon la revendication 12, caractérisé en ce que
    le premier liquide de nettoyage (21, 121 à 121vi, 221) et/ou la première substance de nettoyage et/ou le deuxième liquide de nettoyage (39, 139 à 139vi, 239) est/sont amené(es) au premier et/ou deuxième espace(s) intérieur(s) (3, 103 à 103vi, 203, 5, 105 à 105vi, 205), lorsque le premier état de remplissage a atteint une première valeur de seuil et/ou le deuxième état de remplissage a atteint une deuxième valeur de seuil.
  14. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que
    le premier liquide de nettoyage (21, 121 à 121vi, 221) et/ou la première substance de nettoyage et/ou le deuxième liquide de nettoyage (39, 139 à 139vi, 239) est/sont amené(es) au deuxième espace intérieur (5, 105 à 105vi, 205) jusqu'à ce que son état de remplissage atteigne une troisième valeur de seuil spécifiée.
  15. Procédé selon la revendication 14, caractérisé en ce que
    un troisième liquide de remplissage, en particulier comprenant le deuxième liquide de nettoyage et/ou de l'eau, est amené au deuxième espace intérieur (5, 105 à 105vi, 205) après un acheminement du premier liquide de nettoyage (21, 121 à 121vi, 221) et/ou de la première substance de nettoyage et/ou du deuxième liquide de nettoyage (39, 139 à 139vi, 239), de préférence jusqu'à ce que son état de remplissage atteigne une quatrième valeur de seuil spécifiée, les troisième et quatrième valeurs de seuil de l'état de remplissage étant de préférence identiques.
  16. Procédé selon la revendication 15, caractérisé en ce que
    le deuxième liquide de nettoyage (39, 139 à 139vi, 239) est amené au troisième liquide de nettoyage pendant le chauffage, de préférence de manière intermittente, l'acheminement ayant de préférence lieu de manière localement limitée, en particulier pour éviter une stratification des températures dans le premier liquide de nettoyage.
  17. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que
    le premier liquide de nettoyage (21, 121 à 121vi, 221) et/ou la première substance de nettoyage et/ou le deuxième liquide de nettoyage (39, 139 à 139vi, 239) demeure(nt) et/ou est/sont chauffé(es) pendant un temps d'exposition spécifié dans le deuxième espace intérieur (5, 105 à 105vi, 205) après un acheminement dans celui-ci.
  18. Procédé selon l'une quelconque des revendications 15 à 17, caractérisé en ce que
    après un vidage du premier liquide de nettoyage (21, 121 à 121vi, 221) et/ou de la première substance de nettoyage et/ou du deuxième liquide de nettoyage (39, 139 à 139vi, 239) hors du deuxième espace intérieur (5, 105 à 105vi, 205), le troisième liquide de nettoyage est amené pour rinçage au deuxième espace intérieur (5, 105 à 105vi, 205) et/ou au deuxième dispositif d'acheminement de liquide (54, 59, 154 à 154vi, 159 à 159vi, 209, 254, 259), le troisième liquide de nettoyage étant de préférence chauffé.
  19. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que
    le premier liquide de nettoyage (21, 121 à 121vi, 221) est formé au moins partiellement d'un liquide vaisselle, comprenant en particulier de l'acide citrique.
  20. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que
    au moins un quatrième liquide de nettoyage est amené dans au moins une troisième phase de nettoyage au premier espace intérieur (3, 103 à 103vi, 203) avant la deuxième phase de nettoyage, et est en particulier guidé à travers au moins une partie du premier espace intérieur (3, 103 à 103vi, 203).
  21. Procédé selon la revendication 20, caractérisé en ce que
    le quatrième liquide de nettoyage est amené au moins partiellement à l'appareil de cuisson (1, 101 à 101vi, 201) avant la mise en oeuvre de la troisième phase de nettoyage, en étant stocké au moins temporairement dans le deuxième ou un troisième récipient collecteur (11, 111 à 111vi, 211, 265, 267) et/ou en étant amené au deuxième ou troisième récipient collecteur, au premier espace intérieur (3, 103 à 103vi, 203), au premier dispositif d'évacuation de liquide (15, 115 à 115vi, 215) et/ou au premier dispositif d'acheminement de liquide (7, 107 à 107vi, 207) en vue de la mise en oeuvre de la troisième phase de nettoyage, en particulier de manière dosée par l'intermédiaire d'un troisième dispositif de dosage.
  22. Procédé selon la revendication 20 ou 21, caractérisé en ce que
    le quatrième liquide de nettoyage est produit au moins partiellement à l'intérieur de l'appareil de cuisson (1, 101 à 101vi, 201) avant la mise en oeuvre de la troisième phase de nettoyage, au moins une deuxième substance de nettoyage est de préférence mélangée avec au moins un cinquième liquide de nettoyage, de préférence de l'eau, la deuxième substance de nettoyage est en particulier dissoute dans le cinquième liquide de nettoyage, et/ou le quatrième liquide de nettoyage est dilué par mélange avec le cinquième liquide de nettoyage, la deuxième substance de nettoyage étant de préférence amenée avant et/ou au début de la troisième phase de nettoyage au premier espace intérieur (3, 103 à 103vi, 203) au premier dispositif d'évacuation de liquide (15, 115 à 115vi, 215), au premier dispositif d'acheminement de liquide (7, 107 à 107vi, 207) et/ou à un deuxième récipient de mélange (265), en particulier de manière dosée par l'intermédiaire d'un quatrième dispositif de dosage.
  23. Procédé selon la revendication 22, caractérisé en ce que
    le cinquième liquide de nettoyage est chauffé, en particulier avant un mélange avec la deuxième substance nettoyage et/ou une solution de la deuxième substance de nettoyage.
  24. Procédé selon l'une quelconque des revendications 20 à 23, caractérisé en ce que
    le quatrième liquide de nettoyage, la deuxième substance de nettoyage et/ou le cinquième liquide de nettoyage est/sont collecté(es) dans le deuxième ou troisième récipient collecteur (11, 111 à 111vi, 211, 265, 267) après une traversée du premier espace intérieur (3, 103 à 103vi, 203), le quatrième liquide de nettoyage, la deuxième substance de nettoyage et/ou le cinquième liquide de nettoyage étant de préférence remis en circulation dans le premier espace intérieur (3, 103 à 103vi, 203) depuis le deuxième ou troisième récipient collecteur (11, 111 à 111vi, 211, 265, 267) au moyen du premier dispositif de circulation (25, 125 à 125vi, 225).
  25. Procédé selon l'une quelconque des revendications 20 à 24, caractérisé en ce que
    un sixième liquide de nettoyage, au moins partiellement sous forme de vapeur, en particulier de la vapeur d'eau, est amené au premier espace intérieur (3, 103 à 103vi, 203) pendant la troisième phase de nettoyage, le sixième liquide de nettoyage étant de préférence produit dans le deuxième espace intérieur (5, 105 à 105vi, 205).
  26. Procédé selon l'une quelconque des revendications 20 à 25, caractérisé en ce que
    le quatrième liquide de nettoyage, la deuxième substance de nettoyage, le cinquième liquide de nettoyage, et/ou le sixième liquide de nettoyage est/sont transporté(es) depuis le premier espace intérieur (3, 103 à 103vi, 203), de préférence jusque dans le deuxième récipient collecteur (11, 111 à 111vi, 211) et/ou dans une goulotte de vidange (19, 119 à 119vi, 219) de l'appareil de cuisson (1, 101 à 101vi, 201).
  27. Procédé selon l'une quelconque des revendications 20 à 26, caractérisé en ce que
    le quatrième liquide de nettoyage est formé sur une paroi intérieure du premier espace intérieur (3, 103 à 103vi, 203) au moins partiellement à partir d'un produit de nettoyage destiné à l'élimination de salissures, en particulier de résidus de cuisson, des salissures comprenant des protéines, des sucres, des hydrates de carbone, des carbonates et/ou des incrustations de celles-ci étant en particulier dissoutes.
  28. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que
    un septième liquide de nettoyage, comprenant en particulier le deuxième liquide de nettoyage et/ou de l'eau, est amené en vue d'un rinçage au premier espace intérieur (3, 103 à 103vi, 203) et/ou au premier dispositif d'acheminement de liquide (7, 107 à 107vi, 207) après une traversée du premier liquide de nettoyage (21, 121 à 121vi, 221), de la première substance de nettoyage et/ou du deuxième liquide de nettoyage (39, 139 à 139vi, 239) à travers le premier espace intérieur (3, 103 à 103vi, 203), le septième liquide de nettoyage étant en particulier guidé à travers au moins une partie du premier espace intérieur (3, 103 à 103vi, 203), le septième liquide de nettoyage étant amené au deuxième récipient collecteur (11, 111 à 111vi, 211) et/ou au deuxième récipient de mélange (265) et/ou le septième liquide de nettoyage étant chauffé.
  29. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que
    au moins un huitième liquide de nettoyage, au moins partiellement sous forme de vapeur, en particulier de la vapeur d'eau, est amené au premier espace intérieur (3, 103 à 103vi, 203) après une traversée du premier liquide de nettoyage (21, 121 à 121vi, 221), du quatrième liquide de nettoyage, du cinquième liquide de nettoyage et/ou du septième liquide de nettoyage, le huitième liquide de nettoyage étant de préférence produit dans le deuxième espace intérieur (5, 105 à 105vi, 205) et/ou le sixième liquide de nettoyage étant utilisé(s) en tant que huitième liquide de nettoyage.
  30. Procédé selon la revendication 29, caractérisé en ce que
    le premier espace intérieur (3, 103 à 103vi, 203) est chauffé, en particulier après une traversée du premier liquide de nettoyage, du quatrième liquide de nettoyage (21, 121 à 121vi, 221), du cinquième liquide de nettoyage et/ou du septième liquide de nettoyage et/ou l'acheminement et/ou le vidage du huitième liquide de nettoyage.
EP20070033600 2007-01-30 2007-12-28 Procédé de nettoyage d'un appareil de cuisson Active EP1953458B1 (fr)

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DE102007005502A1 (de) 2008-07-31
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EP1980792A3 (fr) 2009-07-01
EP1953458A1 (fr) 2008-08-06

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