EP2048444A2 - Method for cleaning a system, composed of a tank and a percolator as well as system - Google Patents

Method for cleaning a system, composed of a tank and a percolator as well as system Download PDF

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Publication number
EP2048444A2
EP2048444A2 EP08017435A EP08017435A EP2048444A2 EP 2048444 A2 EP2048444 A2 EP 2048444A2 EP 08017435 A EP08017435 A EP 08017435A EP 08017435 A EP08017435 A EP 08017435A EP 2048444 A2 EP2048444 A2 EP 2048444A2
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EP
European Patent Office
Prior art keywords
tank
water heater
cleaning
liquid
steam
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP08017435A
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German (de)
French (fr)
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EP2048444A3 (en
EP2048444B1 (en
Inventor
Torben Becker
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Miele und Cie KG
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Miele und Cie KG
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Publication date
Application filed by Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP2048444A2 publication Critical patent/EP2048444A2/en
Publication of EP2048444A3 publication Critical patent/EP2048444A3/en
Application granted granted Critical
Publication of EP2048444B1 publication Critical patent/EP2048444B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGESĀ ; 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
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
    • F22B1/288—Instantaneous electrical steam generators built-up from heat-exchange elements arranged within a confined chamber having heat-retaining walls

Definitions

  • the invention relates to a method for cleaning a system consisting of a tank and a water heater, and a system for carrying out the method.
  • Such a method and a system for carrying out the method is known for example from WO 02/068876 A1 already known.
  • the known system consists of a designed as a quenching tank for storing water and a trained as a steam generator water heater for generating water vapor for a treatment room of a cooking appliance designed as a household appliance.
  • the tank and the flow heater are fluidly connected to each other at both the steam-side and the water-side end of the water heater, wherein the fluid-conducting connection occupies a higher position at the steam-side end in the operating position of the system than at the water-side end.
  • the water heater is first overstepped in the known method with water gradually as a cleaning liquid, so that hot water from the water heater passes through the treatment room in the tank.
  • the water is then circulated by a pump.
  • the soiled cleaning fluid is discharged from the system after a certain cleaning time via a cooking appliance drain.
  • the system is refilled with water and the o.g. Process is repeated. Possibly. follow even more cleaning cycles.
  • a rinse with a rinse aid-water mixture The mixture is also discharged from the system at the end of the rinsing process via the cooking appliance.
  • a steam generator which has at its steam-side end a mist eliminator in the steam line in the form of a cyclone.
  • the water collected in the mist eliminator is returned to the boiler interior via a pumped water return.
  • the steam generator also has a boiler room associated with the collection space for deposits.
  • the deposits can be removed by means of a pump.
  • the invention thus presents the problem of providing a method for cleaning a system and a system in which the structural design is simplified.
  • the achievable with the present invention consist in particular in a simpler structural design of the system.
  • the required for the known from the prior art forced circulation pump is not required by the method according to the invention.
  • the production costs are reduced.
  • the reliability is increased.
  • the system requires less space and can therefore also be used in compact household appliances.
  • the desired temperature for the liquid in the system remains unchanged throughout the process.
  • the desired temperature of the liquid before filling the tank with the rinsing liquid from the target temperature after filling the tank with rinsing liquid is different.
  • the temperature of the liquid during the cleaning process can be better adapted to the different circulating liquids.
  • the method can be started depending on very different parameters, such as manually, at specific times, on certain days or the like.
  • the method is started as a function of a start temperature measured on the instantaneous water heater or as a function of the operating time or the turn-on frequency of the instantaneous water heater. In this way, an on-demand cleaning of the system is possible. Unnecessary cleaning and rinsing operations are avoided.
  • the system according to the invention consists of a tank for storing water and a water heater for generating steam for a treatment room of a household appliance, wherein the tank and the water heater are fluidly connected to each other both at the steam side and at the water-side end of the water heater and the fluid-conducting Connection at the steam-side end in the operating position of System occupies a higher position than at the water-side end.
  • the system can be selected according to type, arrangement and material within wide suitable limits.
  • the tank for the separation of droplets from the steam generated on a droplet which is formed as an integral part of the tank. For example, this would be useful if the cleaning fluid is also at least partially evaporated during the cleaning period.
  • the system is thereby also with regard to the normal operation of the household appliance, during which generated from the water stored in the tank in the water heater and steam is discharged into the treatment room of the household appliance, optimized.
  • the unwanted entrainment of droplets in the treatment room is effectively avoided.
  • the mist eliminator can be selected according to type, arrangement and material within wide suitable limits.
  • the droplet separator has a curved deflection section for deflecting the vapor-droplet mixture, which is formed above the connection at the steam-side end.
  • the curved deflection section may have a parabolic curved deflection section.
  • the number of components and the assembly steps can be reduced by the mist eliminator is formed as an integral part of the tank.
  • the tank can be filled in a variety of ways known and suitable to the person skilled in the art. It is advantageous if the tank has an inlet for filling with a liquid and an outlet for discharging excess liquid or vapor, wherein the inlet can be closed in a liquid-tight manner via a shut-off device. This makes it possible to operate the system as a substantially closed system during the cleaning period. Except for the outlet which, for safety reasons, must remain unclosed and can usually be made with a very small clear cross-section, the system is sealed from the environment, allowing for a very low noise level during the cleaning period and also during normal operation of the system is. The noise level can be further reduced if the outlet is also lockable and the system has a safety valve.
  • a temperature sensor is arranged on the water heater, which is in signal transmission connection for controlling and / or regulating a method according to one of claims 1 to 4 with an electrical control.
  • the temperature of the water heater more precisely the temperature at the contact point of its heating to the flow channel for the liquid to be heated, is an indicator of the degree of contamination of the water heater and thus of the system.
  • the electrical control can be designed such that the method according to the invention is started automatically as a function of this temperature, that is to say when a predefined threshold value is exceeded.
  • a counter or timer is arranged, which is actuated depending on the operating time or the EinschaltPSuftechnik the water heater to start the inventive method.
  • Fig. 1 shows an inventive household appliance, which is designed here as a baking oven.
  • the oven is a combination device in which depending on the selected mode or the selected operating program several different types of heating, such as trained as a top and bottom heat radiant heater and saturated steam can be used.
  • Other types of heating known to the person skilled in the art, such as microwave radiation, contact heating and other forms of steam, for example superheated steam, are also conceivable as an alternative or in addition to the abovementioned types of heating.
  • the oven has a cooking chamber designed as a treatment room 2, which is closed by a door 4.
  • the closable by the door 4 opening 6 of the treatment chamber 2 is bounded above, below and laterally by a designed as a rotating part, one-piece frame part 8 of the body 9.
  • a control panel 10 is arranged with control and display elements not shown in a known manner.
  • a filling device 12 is arranged, from the in Fig. 1 only a nozzle 12.1 is shown with an opening 12.1.1.
  • the opening 12.1.1 is here surrounded in the radial direction by a formed as a rubber part elastic buffer portion 12.2, which is attached to the nozzle 12.1.
  • the nozzle 12.1 is shown here in the rest position. Even with the door 4 open, the nozzle 12.1 remains here, as shown, in the rest position. Starting from the rest position, the nozzle 12.1 of the user manually in the in Fig. 2 shown filling position are transferred. The rest position and the filling position limit the transfer region of the nozzle 12.1, wherein the nozzle 12.1 rests in the rest position on the elastic buffer portion 12.2 on the frame part 8.
  • the nozzle 12.1 is pivotally attached to the body 9 via a bracket 12.3.
  • a suction line 20, a pump 22 and a pressure line 24 is connected.
  • the suction line 20 is detachably connected in a manner known to those skilled in the art with the nozzle 12.1 in such a way that the pivoting of the nozzle 12.1 in the holder 12.3 is made possible.
  • the pressure line 24 is further connected to the system 26. In the system 26 is generated from the here via the opening 12.1.1 of the nozzle 12.1 into the oven operating liquid, namely water, in normal operation of the household appliance saturated steam, which then via a steam line 28 and a in Fig. 2 shown steam opening 30 is fed into the cooking chamber 2 if necessary.
  • the user If the user has selected a mode or a program on the control panel 10, in which a predetermined amount of steam and water is needed, the user is asked about the display element not shown in detail of the control panel 10 to open the door 4 and with a To fill water-filled container, not shown, to the nozzle 12.1, that the opening 12.1.1 of the nozzle 12.1 is below the water level.
  • the user pivots the nozzle 12.1 for this purpose of the in Fig. 1 illustrated rest position in the in Fig. 2 shown filling position and placed the container accordingly.
  • a likewise not shown control element of the control panel 10 for example, a key press, the user triggers the filling process, so filling.
  • the pump 22 sucks on the suction line 20 and the nozzle 12.1, the water from the container and conveys it via the pressure line 24 into the system 26. Der User is informed via the display element that the filling process has ended.
  • the pump 22 is switched off and the user can solve the flow-conducting connection between the container and the nozzle 12.1 again, so the container in the image plane of Fig.2 distance down from the nozzle 12.1.
  • Fig. 2 clearly shows, the approach and removal of the container is facilitated here by the fact that the nozzle 12.1 when transferred to the filling position not only forward from the image plane of Fig. 2 out, but also to the right in the direction of the center of the opening 6 is pivoted.
  • the nozzle 12.1 is thus in the filling position in front of the opening 6.
  • the user can pivot the nozzle 12.1 back from the filling position back to the rest position.
  • this return transfer takes place automatically after completion of the filling process by means of a servomotor analogous to the automatic transfer to the filling position.
  • this is not mandatory.
  • the angle relative to a plane parallel to the sides of the domestic appliance is less than 90 Ā°.
  • the nozzle 12.1 is moved in the direction of the center of the opening 6 during the transfer to the filling position. Basically, in the selected arrangement of the nozzle 12.1 a movement in the direction perpendicular to the image plane of Fig. 2 sufficient.
  • the system 26 consists of a tank 26.1 and a water heater 26.2, which are fluidly connected to each other via connections 32 at the steam-side end and 34 at the water-side end of the water heater 26.2.
  • the tank 26.1 is formed as a plastic part and has an inlet 26.1.1 and an outlet 26.1.2.
  • tabs 26.1.3 are formed for attachment of the system 26 to a rear wall 9.1 of the household appliance. See also Fig. 3 ,
  • the instantaneous water heater 26.2 here has two laterally arranged electric heaters 26.2.1. Furthermore, between one of the heaters 26.2.1 and the in Fig.
  • a temperature sensor 36 arranged to measure the temperature in the contact area between the heaters 26.2.1 and the flow channel 26.2.2 and forwarded to an electrical control 38 of the household appliance for further processing. See also Fig. 2 , The fluid-conducting Connections 24, 28, 32, 34 between the tank 26.1 and the flow heater 26.2 and the system 26 and the treatment chamber 2 and the pump 22 are sealed in a manner known to those skilled in the art.
  • the method of cleaning the system 26 is automatically started in response to the output signal of the temperature sensor 36 relayed to the electric controller 38.
  • the flow channel calcifies 26.2.2 during normal operation, which increases the heat transfer resistance between the heaters 26.2.1 and the liquid flowed through the interior of the flow channel 26.2.2. Accordingly, the temperature measured by means of the temperature sensor 36 increases under otherwise identical conditions, ie the same supplied electrical power. While the temperature in a freshly decalcified system 26 here at 125 Ā° C to 135 Ā° C, the temperature rises by the increasing calcification to a value of 159 Ā° C.
  • the electrical control 38 is designed here in such a way that the user can only carry out a predetermined number of applications of the domestic appliance, for example of cooking processes, at a temperature of 159 Ā° C. measured with the temperature sensor 36. Thereafter, a cleaning, namely a descaling, mandatory. The same applies here in the event that the temperature exceeds 160 Ā° C.
  • the household appliance can only be used again in normal operation when the required cleaning, in this case descaling, has been carried out.
  • the electrical controller 38 is known in the art with the temperature sensor 36 signal transmission connection and the heaters 26.2.1 of the water heater 26.2 are energized accordingly.
  • the user is prompted via the display element of the control panel 10 to fill the system with a predetermined amount of cleaning liquid analogous to the detailed normal operation.
  • cleaning liquid analogous to the detailed normal operation.
  • dilute citric acid is used as the cleaning fluid here.
  • the system 26 is automatically filled with dilute citric acid until the level has reached a level at which the fluid-conducting connection 32 at the steam-side end of the flow heater 26.2 between the tank 26.1 and water heater 26.2 a continuous liquid level is formed which at least the height of Line 40 in Fig. 5 has reached, so that in the system 26, a natural circulation of the cleaning liquid is made possible.
  • this is achieved by specifically overfilling the system 26 so that the actual liquid level in the lines 24 and 28 is located.
  • the excess cleaning fluid can be on a retracted into the treatment room 2 collecting container, here a fat pan, not shown, derived. The user is informed in good time to insert the drip pan.
  • the heaters 26.2.1 are automatically switched on by means of the electric control 38 and the cleaning liquid is heated to a desired temperature of here 70 Ā° C. This target temperature is then over a temperature control, not shown, at least for a cleaning time of 60 minutes here. kept substantially constant.
  • the desired natural circulation ie the in Fig. 5 indicated by arrows 42 circulation of the cleaning liquid in the system 26 without a pump.
  • the natural circulation causes a thorough mixing and distribution of the cleaning liquid, so that not only the water heater 26.2 but also the tank 26.1 and the connections 32, 34 are cleaned in the desired manner, here descaled.
  • a shut-off device 44 designed as a valve ensures that the system 26 is closed during the cleaning period except for the outlet 26.1.2, which has only a small clear diameter. See also Fig. 3 , In this way, the noise emission during the cleaning period is significantly reduced.
  • the electrical controller 38 causes a display to prompt the user to fill the system 26 with a predetermined amount of flushing fluid, here water, in the manner discussed above.
  • a predetermined amount of flushing fluid here water
  • the natural circulation in the system 26 is continued.
  • the cleaning liquid is diluted.
  • the resultant cleaning / rinsing agent mixture is discharged from the system 26 via the outlet 26.1.2 onto the drip pan pushed into the treatment space 2.
  • the continuous natural circulation also during the aforementioned rinsing process ensures a good mixing of rinsing and cleaning fluid. If the natural circulation were not continued, the majority of the rinse liquid added to the system 26 would flow directly from the inlet 26.1.1 to the outlet 26.1.2, so that either an insufficient rinsing effect is achieved or the rinsing process would have to be repeated unreasonably. It would also be needed a lot of rinse liquid.
  • the rinsing process ie the addition of rinsing liquid and the removal of the cleaning / rinsing agent mixture from the system 26, repeated a total of three times in succession.
  • the user is alerted by the display to empty the drip pan.
  • the system 26 of the present embodiment has the further advantage of a very compact construction.
  • the present embodiment offers even more advantages.
  • the steam-side end of the water heater 26.2 facing portion 26.1.4 of the tank 26.1 is formed as a parabolic curved deflection section.
  • the desired separation of the vapor-droplet mixture generated during the cleaning process and / or during normal operation of the system 26 is possible in a structurally particularly simple manner.
  • the integration of the droplet separator formed in the tank 26.1 the production of the system 26 is further simplified and less expensive.
  • FIG. 6 shows a further variant of the curved deflection section for the mist eliminator 26.1.4, which is also formed as an integral part of the tank 26.1.
  • the curved diverting portion is also located above the connection 32 of the steam-side end.
  • the mist eliminator 26.1.4 is formed with an enlarged separation chamber above the steam-side end.
  • the enlarged separation chamber has over the previously described embodiment according to FIG. 4 more volume for foam, which can occur during a cleaning process.
  • the solution according to the invention is not limited to the illustrated embodiment, but also to other household appliances in which water vapor is used applicable.
  • other household appliances in which water vapor is used applicable.
  • use in beverage makers, in other cooking appliances such as steamer, stoves or the like, in laundry treatment machines and in dishwashers is conceivable.
  • the cleaning tasks and thus also the cleaning and rinsing liquids used can be as different as the domestic appliances.
  • a counter or timer in an evaluation circuit of the electrical control is to be arranged in a manner known to those skilled in the art, for example.

Abstract

The cleaning system (26) for a domestic oven has a water tank filled with diluted citric acid to a given level (40) and a continuous-flow heater (26.2) to generate steam. When the heater is activated, the water temperature is set to a nominal level to give a natural circulation. After a given cleaning time, further rinsing water is added while it is still circulating. After cleaning, the mixture of cleaning and rinsing fluids is spun out of the system.

Description

Die Erfindung betrifft ein Verfahren zur Reinigung eines Systems, bestehend aus einem Tank und einem Durchlauferhitzer, sowie ein System zur DurchfĆ¼hrung des Verfahrens.The invention relates to a method for cleaning a system consisting of a tank and a water heater, and a system for carrying out the method.

Ein derartiges Verfahren und ein System zur DurchfĆ¼hrung des Verfahrens ist beispielsweise aus der WO 02/068876 A1 bereits bekannt. Das bekannte System besteht aus einem als Ablƶschkasten ausgebildeten Tank zur Bevorratung von Wasser und einem als Dampfgenerator ausgebildeten Durchlauferhitzer zur Erzeugung von Wasserdampf fĆ¼r einen Behandlungsraum eines als GargerƤt ausgebildeten HaushaltsgerƤts. Der Tank und der Durchlauferhitzer sind sowohl an dem dampfseitigen wie auch an dem wasserseitigen Ende des Durchlauferhitzers miteinander fluidleitend verbunden, wobei die fluidleitende Verbindung an dem dampfseitigen Ende in der Betriebslage des Systems eine hƶhere Lage als an dem wasserseitigen Ende einnimmt.Such a method and a system for carrying out the method is known for example from WO 02/068876 A1 already known. The known system consists of a designed as a quenching tank for storing water and a trained as a steam generator water heater for generating water vapor for a treatment room of a cooking appliance designed as a household appliance. The tank and the flow heater are fluidly connected to each other at both the steam-side and the water-side end of the water heater, wherein the fluid-conducting connection occupies a higher position at the steam-side end in the operating position of the system than at the water-side end.

Zur Reinigung des Systems wird der Durchlauferhitzer bei dem bekannten Verfahren zuerst stufenweise mit Wasser als ReinigungsflĆ¼ssigkeit Ć¼berfĆ¼llt, so dass heiƟes Wasser aus dem Durchlauferhitzer Ć¼ber den Behandlungsraum in den Tank gelangt. Das Wasser wird anschlieƟend durch eine Pumpe umgewƤlzt. Die verschmutzte ReinigungsflĆ¼ssigkeit wird nach einer bestimmten Reinigungsdauer Ć¼ber einen GargerƤteablauf aus dem System ausgeschleust. Danach wird das System erneut mit Wasser befĆ¼llt und der o.g. Vorgang wiederholt sich. Evtl. folgen noch weitere Reinigungszyklen. Zum Schluss erfolgt ein SpĆ¼lvorgang mit einem KlarspĆ¼ler-Wasser-Gemisch. Das Gemisch wird am Ende des SpĆ¼lvorgangs ebenfalls Ć¼ber den GargerƤteablauf aus dem System ausgeschleust.To purify the system, the water heater is first overstepped in the known method with water gradually as a cleaning liquid, so that hot water from the water heater passes through the treatment room in the tank. The water is then circulated by a pump. The soiled cleaning fluid is discharged from the system after a certain cleaning time via a cooking appliance drain. Thereafter, the system is refilled with water and the o.g. Process is repeated. Possibly. Follow even more cleaning cycles. Finally, a rinse with a rinse aid-water mixture. The mixture is also discharged from the system at the end of the rinsing process via the cooking appliance.

Aus der DE 101 09 251 C1 ist ein Dampferzeuger bekannt, der an seinem dampfseitigen Ende einen Tropfenabscheider in der Dampfleitung in Form eines Zyklons aufweist.
Das in dem Tropfenabscheider gesammelte Wasser wird Ć¼ber eine WasserrĆ¼ckfĆ¼hrung mit Pumpe in den Kesselinnenraum zurĆ¼ckgefĆ¼hrt.From the DE 101 09 251 C1 a steam generator is known which has at its steam-side end a mist eliminator in the steam line in the form of a cyclone.
The water collected in the mist eliminator is returned to the boiler interior via a pumped water return.

Der Dampferzeuger weist auƟerdem einen dem Kesselinnenraum zugeordneten Sammelraum fĆ¼r Ablagerungen auf. In einem Reinigungsvorgang kƶnnen die Ablagerungen mittels Pumpe abgefĆ¼hrt werden.The steam generator also has a boiler room associated with the collection space for deposits. In a cleaning process, the deposits can be removed by means of a pump.

Bei beiden AusfĆ¼hrungen aus dem Stand der Technik sind zusƤtzliche Pumpen fĆ¼r die DurchfĆ¼hrung eines Reinigungsvorganges erforderlich.In both versions of the prior art additional pumps for carrying out a cleaning process are required.

Der Erfindung stellt sich somit das Problem ein Verfahren zur Reinigung eines Systems sowie ein System anzugeben, bei dem der konstruktive Aufbau vereinfacht ist.The invention thus presents the problem of providing a method for cleaning a system and a system in which the structural design is simplified.

ErfindungsgemƤƟ wird dieses Problem durch ein Verfahren mit den Merkmalen des Patentanspruchs 1 sowie ein System mit den Merkmalen des Patentanspruchs 5 gelƶst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den nachfolgenden UnteransprĆ¼chen.According to the invention, this problem is solved by a method having the features of patent claim 1 and a system having the features of patent claim 5. Advantageous embodiments and further developments of the invention will become apparent from the following subclaims.

Die mit der Erfindung erreichbaren Vorteile bestehen insbesondere in einem einfacheren konstruktiven Aufbau des Systems. Die fĆ¼r den aus dem Stand der Technik bekannten Zwangsumlauf erforderliche Pumpe ist nach dem erfindungsgemƤƟen Verfahren nicht erforderlich. Hierdurch sind zum einen die Herstellkosten gesenkt. Zum anderen ist die Betriebssicherheit erhƶht. Ferner benƶtigt das System weniger Bauraum und ist damit auch bei kompakten HaushaltsgerƤten einsetzbar.The achievable with the present invention consist in particular in a simpler structural design of the system. The required for the known from the prior art forced circulation pump is not required by the method according to the invention. As a result, on the one hand, the production costs are reduced. On the other hand, the reliability is increased. Furthermore, the system requires less space and can therefore also be used in compact household appliances.

GrundsƤtzlich ist es mƶglich, dass die Soll-Temperatur fĆ¼r die FlĆ¼ssigkeit in dem System wƤhrend des gesamten Verfahrens unverƤndert bleibt. Bei einer verbesserten AusfĆ¼hrungsform ist es jedoch denkbar, dass sich die Soll-Temperatur der FlĆ¼ssigkeit vor dem FĆ¼llen des Tanks mit der SpĆ¼lflĆ¼ssigkeit von der Soll-Temperatur nach dem FĆ¼llen des Tanks mit SpĆ¼lflĆ¼ssigkeit unterscheidet. Hierdurch kann die Temperatur der FlĆ¼ssigkeit wƤhrend des Reinigungsverfahrens besser an die unterschiedlichen zirkulierenden FlĆ¼ssigkeiten angepasst werden.In principle, it is possible that the desired temperature for the liquid in the system remains unchanged throughout the process. In an improved embodiment, however, it is conceivable that the desired temperature of the liquid before filling the tank with the rinsing liquid from the target temperature after filling the tank with rinsing liquid is different. As a result, the temperature of the liquid during the cleaning process can be better adapted to the different circulating liquids.

GrundsƤtzlich kann es ausreichend sein, wenn das System nach dem eigentlichen Reinigungsvorgang lediglich einmalig mit SpĆ¼lflĆ¼ssigkeit gespĆ¼lt wird. Bei einer verbesserten AusfĆ¼hrungsform ist es mƶglich, dass das FĆ¼llen des Tanks mit SpĆ¼lflĆ¼ssigkeit und das Ausschleusen des Gemisches aus Reinigungs- und SpĆ¼lflĆ¼ssigkeit mehrmals direkt nacheinander wiederholt werden. Auch ist es denkbar, dass die Anzahl der SpĆ¼lvorgƤnge in AbhƤngigkeit des Verschmutzungsgrades des Systems oder anderer Parameter, wie beispielsweise Betriebsdauer oder EinschalthƤufigkeit des Durchlauferhitzers, erfolgt.In principle, it may be sufficient if the system is rinsed only once with rinsing liquid after the actual cleaning process. In an improved embodiment, it is possible that the filling of the tank with rinsing liquid and the discharge of the mixture of cleaning and rinsing liquid are repeated several times in succession. It is also conceivable that the number of rinsing operations depending on the degree of contamination of the system or other parameters, such as operating time or EinschalthƤufigkeit the water heater, takes place.

GrundsƤtzlich kann das Verfahren in AbhƤngigkeit von voneinander sehr verschiedenen Parametern, wie beispielsweise manuell, zu bestimmten Zeiten, an bestimmten Tagen oder dergleichen, gestartet werden. Vorteilhafterweise wird das Verfahren in AbhƤngigkeit von einer an dem Durchlauferhitzer gemessenen Start-Temperatur oder in AbhƤngigkeit der Betriebsdauer oder der EinschalthƤufigkeit des Durchlauferhitzers gestartet. Auf diese Weise ist eine am tatsƤchlichen Bedarf orientierte Reinigung des Systems ermƶglicht. Unnƶtige Reinigungs- und SpĆ¼lvorgƤnge werden vermieden.In principle, the method can be started depending on very different parameters, such as manually, at specific times, on certain days or the like. Advantageously, the method is started as a function of a start temperature measured on the instantaneous water heater or as a function of the operating time or the turn-on frequency of the instantaneous water heater. In this way, an on-demand cleaning of the system is possible. Unnecessary cleaning and rinsing operations are avoided.

Das erfindungsgemƤƟe System, besteht aus einem Tank zur Bevorratung von Wasser und einem Durchlauferhitzer zur Erzeugung von Wasserdampf fĆ¼r einen Behandlungsraum eines HaushaltsgerƤts, wobei der Tank und der Durchlauferhitzer sowohl an dem dampfseitigen wie auch an dem wasserseitigen Ende des Durchlauferhitzers miteinander fluidleitend verbunden sind und die fluidleitende Verbindung an dem dampfseitigen Ende in der Betriebslage des Systems eine hƶhere Lage als an dem wasserseitigen Ende einnimmt. Ansonsten ist das System nach Art, Anordnung und Material in weiten geeigneten Grenzen wƤhlbar. Vorteilhafterweise weist der Tank zur Abscheidung von Tropfen aus dem erzeugten Dampf einen Tropfenabscheider auf, der als integraler Bestandteil des Tanks ausgebildet ist. Beispielsweise wƤre dies sinnvoll, wenn die ReinigungsflĆ¼ssigkeit wƤhrend der Reinigungsdauer auch zumindest teilweise verdampft wird. Ferner ist das System hierdurch auch im Hinblick auf den Normalbetrieb des HaushaltsgerƤts, wƤhrend dessen aus dem in dem Tank bevorrateten Wasser in dem Durchlauferhitzer Wasserdampf erzeugt und in den Behandlungsraum des HaushaltsgerƤts abgegeben wird, optimiert. Das ungewĆ¼nschte Mitschleppen von Trƶpfchen in den Behandlungsraum ist wirksam vermieden.The system according to the invention consists of a tank for storing water and a water heater for generating steam for a treatment room of a household appliance, wherein the tank and the water heater are fluidly connected to each other both at the steam side and at the water-side end of the water heater and the fluid-conducting Connection at the steam-side end in the operating position of System occupies a higher position than at the water-side end. Otherwise, the system can be selected according to type, arrangement and material within wide suitable limits. Advantageously, the tank for the separation of droplets from the steam generated on a droplet, which is formed as an integral part of the tank. For example, this would be useful if the cleaning fluid is also at least partially evaporated during the cleaning period. Furthermore, the system is thereby also with regard to the normal operation of the household appliance, during which generated from the water stored in the tank in the water heater and steam is discharged into the treatment room of the household appliance, optimized. The unwanted entrainment of droplets in the treatment room is effectively avoided.

GrundsƤtzlich ist der Tropfenabscheider nach Art, Anordnung und Material in weiten geeigneten Grenzen wƤhlbar. Vorteilhafterweise weist der Tropfenabscheider einen gekrĆ¼mmten Umlenkabschnitt zur Umlenkung des Dampf-Tropfen-Gemisches auf, der oberhalb der Verbindung am dampfseitigen Ende ausgebildet ist. Der gekrĆ¼mmte Umlenkabschnitt kann einen parabelfƶrmig gekrĆ¼mmten Umlenkabschnitt aufweisen. Hierdurch ist ein robuster Tropfenabscheider auf konstruktiv einfache Weise realisiert.In principle, the mist eliminator can be selected according to type, arrangement and material within wide suitable limits. Advantageously, the droplet separator has a curved deflection section for deflecting the vapor-droplet mixture, which is formed above the connection at the steam-side end. The curved deflection section may have a parabolic curved deflection section. As a result, a robust droplet is realized in a structurally simple manner.

Die Anzahl der Bauteile sowie der Montageschritte lƤsst sich verringern, indem der Tropfenabscheider als ein integraler Bestandteil des Tanks ausgebildet ist.The number of components and the assembly steps can be reduced by the mist eliminator is formed as an integral part of the tank.

GrundsƤtzlich kann der Tank auf vielfƤltige dem Fachmann bekannte und geeignete Weise befĆ¼llbar sein. Vorteilhaft ist es, wenn der Tank einen Einlass zum BefĆ¼llen mit einer FlĆ¼ssigkeit und einen Auslass zum Ausschleusen von Ć¼berschĆ¼ssiger FlĆ¼ssigkeit oder Dampf aufweist, wobei der Einlass Ć¼ber eine Absperrvorrichtung flĆ¼ssigkeitsdicht verschlieƟbar ist. Hierdurch ist es mƶglich, das System wƤhrend der Reinigungsdauer als ein im Wesentlichen geschlossenes System zu betreiben. Bis auf den Auslass, der aus SicherheitsgrĆ¼nden unverschlossen bleiben muss und in der Regel mit einem sehr geringen freien Querschnitt ausgefĆ¼hrt werden kann, ist das System von der Umgebung abgeschlossen, so dass ein sehr geringes GerƤuschniveau wƤhrend der Reinigungsdauer und auch wƤhrend des Normalbetriebs des Systems ermƶglicht ist. Das GerƤuschniveau lƤsst sich noch weiter absenken, wenn der Auslass ebenfalls verschlieƟbar ist und das System ein Sicherheitsventil aufweist.In principle, the tank can be filled in a variety of ways known and suitable to the person skilled in the art. It is advantageous if the tank has an inlet for filling with a liquid and an outlet for discharging excess liquid or vapor, wherein the inlet can be closed in a liquid-tight manner via a shut-off device. This makes it possible to operate the system as a substantially closed system during the cleaning period. Except for the outlet which, for safety reasons, must remain unclosed and can usually be made with a very small clear cross-section, the system is sealed from the environment, allowing for a very low noise level during the cleaning period and also during normal operation of the system is. The noise level can be further reduced if the outlet is also lockable and the system has a safety valve.

Eine vorteilhafte Weiterbildung sieht vor, dass an dem Durchlauferhitzer ein Temperatursensor angeordnet ist, der zur Steuerung und/oder Regelung eines Verfahrens gemƤƟ einem der AnsprĆ¼che 1 bis 4 mit einer elektrischen Steuerung in SignalĆ¼bertragungsverbindung steht. Auf diese Weise ist das Verfahren weiter verbessert. Die Temperatur des Durchlauferhitzers, genauer die Temperatur an der Kontaktstelle von dessen Heizung zu dem Strƶmungskanal fĆ¼r die zu erhitzende FlĆ¼ssigkeit, ist ein Indikator fĆ¼r den Verschmutzungsgrad des Durchlauferhitzers und damit des Systems. Durch Verkalkung wƤhrend des Normalbetriebs des Systems wird der WƤrmedurchgangswiderstand erhƶht, so dass die gemessene Temperatur bei ansonsten gleichen Bedingungen, also gleicher zugefĆ¼hrter elektrischer Leistung, ansteigt. Entsprechend kann die elektrische Steuerung derart ausgebildet sein, dass das erfindungsgemƤƟe Verfahren in AbhƤngigkeit dieser Temperatur, also bei Ɯberschreiten eines vorher festgelegten Schwellwerts, automatisch gestartet wird. Hierdurch ist eine bedarfgesteuerte Reinigung des Systems ermƶglicht. Ferner ist das Erreichen einer vorher festgelegten Soll-Temperatur der ReinigungsflĆ¼ssigkeit und des Gemisches aus Reinigungs-und SpĆ¼lflĆ¼ssigkeit erforderlich, um den Naturumlauf zu gewƤhrleisten und eine entsprechende Reinigungsleistung zu erreichen. Dies kann entweder durch eine auf der direkten Messung der Temperatur der umgewƤlzten FlĆ¼ssigkeit oder auf einer indirekten Messung basierenden Regelung erfolgen.An advantageous development provides that a temperature sensor is arranged on the water heater, which is in signal transmission connection for controlling and / or regulating a method according to one of claims 1 to 4 with an electrical control. In this way, the process is further improved. The temperature of the water heater, more precisely the temperature at the contact point of its heating to the flow channel for the liquid to be heated, is an indicator of the degree of contamination of the water heater and thus of the system. By calcification during normal operation of the Systems, the heat transfer resistance is increased, so that the measured temperature increases under otherwise identical conditions, ie the same supplied electrical power. Accordingly, the electrical control can be designed such that the method according to the invention is started automatically as a function of this temperature, that is to say when a predefined threshold value is exceeded. This allows a demand-controlled cleaning of the system. Furthermore, the achievement of a predetermined target temperature of the cleaning liquid and the mixture of cleaning and rinsing liquid is required to ensure the natural circulation and to achieve a corresponding cleaning performance. This can be done either by a control based on the direct measurement of the temperature of the circulating liquid or on an indirect measurement.

Alternativ oder in ErgƤnzung zu der vorgenannten AusfĆ¼hrungsform ist es mƶglich, dass in einer Auswerteschaltung der elektrischen Steuerung ein ZƤhl- oder Zeitglied angeordnet ist, das in AbhƤngigkeit der Betriebsdauer oder der EinschalthƤufigkeit des Durchlauferhitzers betƤtigbar ist, um das erfindungsgemƤƟe Verfahren zu starten.Alternatively or in addition to the aforementioned embodiment, it is possible that in a evaluation circuit of the electrical control, a counter or timer is arranged, which is actuated depending on the operating time or the EinschalthƤufigkeit the water heater to start the inventive method.

Ein AusfĆ¼hrungsbeispiel der Erfindung ist in den Zeichnungen rein schematisch dargestellt und wird nachfolgend nƤher beschrieben. Es zeigt

Figur 1
ein HaushaltsgerƤt mit einem erfindungsgemƤƟen System in einer perspektivischen Seitenansicht,
Figur 2
das HaushaltsgerƤt aus Fig. 1 in teilweiser Frontansicht,
Figur 3
das HaushaltsgerƤt aus Fig. 1 in teilweiser und perspektivischer RĆ¼ckansicht,
Figur 4
das System aus Fig. 3 in einer vergrĆ¶ĆŸerten Darstellung und
Figur 5
das System aus Fig. 4 in einer Schnittdarstellung,
Figur 6
das System mit einer weiteren Variante des gekrĆ¼mmten Umlenkabschnitts fĆ¼r einen Tropfenabscheider.
An embodiment of the invention is shown purely schematically in the drawings and will be described in more detail below. It shows
FIG. 1
a domestic appliance with a system according to the invention in a perspective side view,
FIG. 2
the household appliance off Fig. 1 in partial front view,
FIG. 3
the household appliance off Fig. 1 in partial and perspective rear view,
FIG. 4
the system off Fig. 3 in an enlarged view and
FIG. 5
the system off Fig. 4 in a sectional view,
FIG. 6
the system with a further variant of the curved deflection section for a mist eliminator.

Fig. 1 zeigt ein erfindungsgemƤƟes HaushaltsgerƤt, das hier als ein Backofen ausgebildet ist. Der Backofen ist ein KombinationsgerƤt, bei dem in AbhƤngigkeit der ausgewƤhlten Betriebsart oder des ausgewƤhlten Betriebsprogramms mehrere verschiedene Beheizungsarten, wie als Ober- und Unterhitze ausgebildete Strahlungsheizer und Sattdampf eingesetzt werden. Andere dem Fachmann bekannte Beheizungsarten, wie Mikrowellenstrahlung, Kontaktheizung sowie andere Dampfformen, beispielsweise Ć¼berhitzter Dampf, sind alternativ oder in ErgƤnzung der vorgenannten Beheizungsarten ebenfalls denkbar. Fig. 1 shows an inventive household appliance, which is designed here as a baking oven. The oven is a combination device in which depending on the selected mode or the selected operating program several different types of heating, such as trained as a top and bottom heat radiant heater and saturated steam can be used. Other types of heating known to the person skilled in the art, such as microwave radiation, contact heating and other forms of steam, for example superheated steam, are also conceivable as an alternative or in addition to the abovementioned types of heating.

Der Backofen weist einen als Garraum ausgebildeten Behandlungsraum 2 auf, der durch eine TĆ¼r 4 verschlieƟbar ist. Die durch die TĆ¼r 4 verschlieƟbare Ɩffnung 6 des Behandlungsraums 2 ist nach oben, unten und seitlich durch ein als umlaufendes Teil ausgebildetes, einstĆ¼ckiges Rahmenteil 8 des Korpus 9 begrenzt. Ɯber dem Behandlungsraum 2 ist auf an sich bekannte Weise eine Bedienblende 10 mit nicht nƤher dargestellten Bedien- und Anzeigeelementen angeordnet.The oven has a cooking chamber designed as a treatment room 2, which is closed by a door 4. The closable by the door 4 opening 6 of the treatment chamber 2 is bounded above, below and laterally by a designed as a rotating part, one-piece frame part 8 of the body 9. Above the treatment room 2, a control panel 10 is arranged with control and display elements not shown in a known manner.

An dem Rahmenteil 8 ist eine EinfĆ¼llvorrichtung 12 angeordnet, von der in Fig. 1 lediglich ein Stutzen 12.1 mit einer Ɩffnung 12.1.1 dargestellt ist. Die Ɩffnung 12.1.1 ist hier in radialer Richtung von einem als Gummiteil ausgebildeten elastischen Pufferteil 12.2 umgeben, das auf den Stutzen 12.1 aufgesteckt ist. Der Stutzen 12.1 ist hier in der Ruhelage dargestellt. Auch bei geƶffneter TĆ¼r 4 bleibt der Stutzen 12.1 hier, wie dargestellt, in der Ruhelage. Ausgehend von der Ruhelage kann der Stutzen 12.1 von dem Benutzer manuell in die in Fig. 2 dargestellte EinfĆ¼lllage Ć¼berfĆ¼hrt werden. Die Ruhelage und die EinfĆ¼lllage begrenzen den ƜberfĆ¼hrungsbereich des Stutzens 12.1, wobei der Stutzen 12.1 in der Ruhelage Ć¼ber das elastische Pufferteil 12.2 an dem Rahmenteil 8 anliegt.On the frame part 8, a filling device 12 is arranged, from the in Fig. 1 only a nozzle 12.1 is shown with an opening 12.1.1. The opening 12.1.1 is here surrounded in the radial direction by a formed as a rubber part elastic buffer portion 12.2, which is attached to the nozzle 12.1. The nozzle 12.1 is shown here in the rest position. Even with the door 4 open, the nozzle 12.1 remains here, as shown, in the rest position. Starting from the rest position, the nozzle 12.1 of the user manually in the in Fig. 2 shown filling position are transferred. The rest position and the filling position limit the transfer region of the nozzle 12.1, wherein the nozzle 12.1 rests in the rest position on the elastic buffer portion 12.2 on the frame part 8.

Wie aus Fig. 2 in Verbindung mit Fig. 3 hervorgeht, ist der Stutzen 12.1 Ć¼ber eine Halterung 12.3 an dem Korpus 9 schwenkbeweglich befestigt. An den Stutzen 12.1 ist, im Wesentlichen flĆ¼ssigkeitsdicht, eine Saugleitung 20, eine Pumpe 22 und eine Druckleitung 24 angeschlossen. Die Saugleitung 20 ist auf dem Fachmann bekannte Weise derart mit dem Stutzen 12.1 lƶsbar verbunden, dass das Verschwenken des Stutzens 12.1 in der Halterung 12.3 ermƶglicht ist. Die Druckleitung 24 ist ferner an das System 26 angeschlossen. In dem System 26 wird aus der hier Ć¼ber die Ɩffnung 12.1.1 des Stutzens 12.1 in den Backofen eingespeisten BetriebsflĆ¼ssigkeit, nƤmlich Wasser, im Normalbetrieb des HaushaltsgerƤts Sattdampf erzeugt, der dann Ć¼ber eine Dampfleitung 28 und eine in Fig. 2 dargestellte Dampfƶffnung 30 bei Bedarf in den Garraum 2 eingespeist wird.How out Fig. 2 combined with Fig. 3 shows, the nozzle 12.1 is pivotally attached to the body 9 via a bracket 12.3. At the nozzle 12.1 is substantially liquid-tight, a suction line 20, a pump 22 and a pressure line 24 is connected. The suction line 20 is detachably connected in a manner known to those skilled in the art with the nozzle 12.1 in such a way that the pivoting of the nozzle 12.1 in the holder 12.3 is made possible. The pressure line 24 is further connected to the system 26. In the system 26 is generated from the here via the opening 12.1.1 of the nozzle 12.1 into the oven operating liquid, namely water, in normal operation of the household appliance saturated steam, which then via a steam line 28 and a in Fig. 2 shown steam opening 30 is fed into the cooking chamber 2 if necessary.

Hat der Benutzer eine Betriebsart oder ein Programm Ć¼ber die Bedienblende 10 ausgewƤhlt, bei dem eine vorher festgelegte Menge an Dampf und damit Wasser benƶtigt wird, wird der Benutzer Ć¼ber das nicht nƤher dargestellte Anzeigeelement der Bedienblende 10 aufgefordert, die TĆ¼r 4 zu ƶffnen und einen mit Wasser gefĆ¼llten nicht dargestellten BehƤlter derart an den Stutzen 12.1 zu halten, dass sich die Ɩffnung 12.1.1 des Stutzens 12.1 unterhalb des Wasserspiegels befindet. Der Benutzer schwenkt den Stutzen 12.1 hierzu von der in Fig. 1 dargestellten Ruhelage in die in Fig. 2 dargestellte EinfĆ¼lllage und platziert den BehƤlter entsprechend. Durch die BetƤtigung eines ebenfalls nicht nƤher dargestellten Bedienelements der Bedienblende 10, beispielsweise einen Tastendruck, lƶst der Benutzer den EinfĆ¼llvorgang, also das BefĆ¼llen, aus. Die Pumpe 22 saugt Ć¼ber die Saugleitung 20 und den Stutzen 12.1 das Wasser aus dem BehƤlter an und fƶrdert es Ć¼ber die Druckleitung 24 in das System 26. Der Benutzer wird Ć¼ber das Anzeigeelement darĆ¼ber informiert, dass der EinfĆ¼llvorgang beendet ist. Die Pumpe 22 ist ausgeschaltet und der Benutzer kann die strƶmungsleitende Verbindung zwischen dem BehƤlter und dem Stutzen 12.1 wieder lƶsen, also den BehƤlter in der Bildebene von Fig.2 nach unten von dem Stutzen 12.1 distanzieren. Wie aus Fig. 2 deutlich hervorgeht, ist das AnnƤhern sowie das Entfernen des BehƤlters hier dadurch erleichtert, dass der Stutzen 12.1 bei der ƜberfĆ¼hrung in die EinfĆ¼lllage nicht nur nach vorne aus der Bildebene von Fig. 2 heraus, sondern auch nach rechts in Richtung der Mitte der Ɩffnung 6 verschwenkt wird. Der Stutzen 12.1 befindet sich somit in der EinfĆ¼lllage vor der Ɩffnung 6. Zur besseren VerstƤndlichkeit sind in Fig. 2 sowohl die Ruhelage wie auch die EinfĆ¼lllage des Stutzens 12.1 dargestellt.If the user has selected a mode or a program on the control panel 10, in which a predetermined amount of steam and water is needed, the user is asked about the display element not shown in detail of the control panel 10 to open the door 4 and with a To fill water-filled container, not shown, to the nozzle 12.1, that the opening 12.1.1 of the nozzle 12.1 is below the water level. The user pivots the nozzle 12.1 for this purpose of the in Fig. 1 illustrated rest position in the in Fig. 2 shown filling position and placed the container accordingly. By pressing a likewise not shown control element of the control panel 10, for example, a key press, the user triggers the filling process, so filling. The pump 22 sucks on the suction line 20 and the nozzle 12.1, the water from the container and conveys it via the pressure line 24 into the system 26. Der User is informed via the display element that the filling process has ended. The pump 22 is switched off and the user can solve the flow-conducting connection between the container and the nozzle 12.1 again, so the container in the image plane of Fig.2 distance down from the nozzle 12.1. How out Fig. 2 clearly shows, the approach and removal of the container is facilitated here by the fact that the nozzle 12.1 when transferred to the filling position not only forward from the image plane of Fig. 2 out, but also to the right in the direction of the center of the opening 6 is pivoted. The nozzle 12.1 is thus in the filling position in front of the opening 6. For clarity, are in Fig. 2 both the rest position and the filling position of the nozzle 12.1 shown.

Nach dem oben erlƤuterten BefĆ¼llen kann der Benutzer den Stutzen 12.1 wieder von der EinfĆ¼lllage zurĆ¼ck in die Ruhelage schwenken. Alternativ hierzu wƤre es auch denkbar, dass diese RĆ¼ckĆ¼berfĆ¼hrung nach Beendigung des BefĆ¼llvorgangs mittels eines Stellmotors analog zu dem automatischen ƜberfĆ¼hren in die EinfĆ¼lllage auch automatisch erfolgt. Bei dem vorliegenden AusfĆ¼hrungsbeispiel ist dies jedoch nicht zwingend erforderlich. Wie aus der Fig. 2 hervorgeht, schlieƟt der Stutzen 12.1 in der EinfĆ¼lllage mit dem Rahmenteil 8 bezogen auf eine Ebene parallel zu den Seiten des HaushaltsgerƤts einen Winkel von hier 40Ā° und bezogen auf eine Ebene parallel zu der Frontseite des HaushaltsgerƤts einen Winkel von hier 30Ā° ein. Auf diese Weise ist gewƤhrleistet, dass der Stutzen 12.1 bei dem SchlieƟen der TĆ¼r 4 automatisch von der EinfĆ¼lllage in die Ruhelage Ć¼berfĆ¼hrt wird. Alternativ zu den hier vorliegenden Winkeln ist es fĆ¼r diese Funktion grundsƤtzlich ausreichend, wenn der Winkel bezogen auf eine Ebene parallel zu den Seiten des HaushaltsgerƤts kleiner als 90Ā° realisiert ist. Ferner ist es nicht zwingend erforderlich, dass der Stutzen 12.1 bei der ƜberfĆ¼hrung in die EinfĆ¼lllage auch in Richtung der Mitte der Ɩffnung 6 bewegt wird. GrundsƤtzlich ist bei der gewƤhlten Anordnung des Stutzens 12.1 eine Bewegung in Richtung senkrecht zur Bildebene von Fig. 2 ausreichend.After the filling described above, the user can pivot the nozzle 12.1 back from the filling position back to the rest position. Alternatively, it would also be conceivable that this return transfer takes place automatically after completion of the filling process by means of a servomotor analogous to the automatic transfer to the filling position. However, in the present embodiment, this is not mandatory. Like from the Fig. 2 shows the nozzle 12.1 in the filling position with the frame part 8 with respect to a plane parallel to the sides of the household appliance an angle of 40 Ā° here and based on a plane parallel to the front of the appliance an angle of 30 Ā° here. In this way, it is ensured that the nozzle 12.1 is automatically transferred when closing the door 4 of the filling position in the rest position. As an alternative to the angles present here, it is basically sufficient for this function if the angle relative to a plane parallel to the sides of the domestic appliance is less than 90 Ā°. Furthermore, it is not absolutely necessary that the nozzle 12.1 is moved in the direction of the center of the opening 6 during the transfer to the filling position. Basically, in the selected arrangement of the nozzle 12.1 a movement in the direction perpendicular to the image plane of Fig. 2 sufficient.

In Fig. 4 ist das System 26 nƤher dargestellt. Das System 26 besteht aus einem Tank 26.1 und einem Durchlauferhitzer 26.2, die Ć¼ber Verbindungen 32 an dem dampfseitigen Ende und 34 an dem wasserseitigen Ende des Durchlauferhitzers 26.2 miteinander fluidleitend verbunden sind. Der Tank 26.1 ist als ein Kunststoffteil ausgebildet und weist einen Einlass 26.1.1 und einen Auslass 26.1.2 auf. DarĆ¼ber hinaus sind an dem Tank 26.1 Laschen 26.1.3 zur Befestigung des Systems 26 an einer RĆ¼ckwand 9.1 des HaushaltsgerƤts angeformt. Siehe hierzu auch Fig. 3. Der Durchlauferhitzer 26.2 weist hier zwei seitlich angeordnete elektrische Heizungen 26.2.1 auf. Ferner ist zwischen einer der Heizungen 26.2.1 und dem in Fig. 5 nƤher dargestellten Strƶmungskanal 26.2.2 des Durchlauferhitzers 26.2 ein Temperatursensor 36 angeordnet, um die Temperatur in dem Kontaktbereich zwischen den Heizungen 26.2.1 und dem Strƶmungskanal 26.2.2 zu messen und an eine elektrische Steuerung 38 des HaushaltsgerƤts zur weiteren Verarbeitung weiterzuleiten. Siehe hierzu auch Fig. 2. Die fluidleitenden Verbindungen 24, 28, 32, 34 zwischen dem Tank 26.1 und dem Durchlauferhitzer 26.2 sowie dem System 26 und dem Behandlungsraum 2 und der Pumpe 22 sind auf dem Fachmann bekannte Weise dicht ausgebildet.In Fig. 4 the system 26 is shown in more detail. The system 26 consists of a tank 26.1 and a water heater 26.2, which are fluidly connected to each other via connections 32 at the steam-side end and 34 at the water-side end of the water heater 26.2. The tank 26.1 is formed as a plastic part and has an inlet 26.1.1 and an outlet 26.1.2. In addition, on the tank 26.1 tabs 26.1.3 are formed for attachment of the system 26 to a rear wall 9.1 of the household appliance. See also Fig. 3 , The instantaneous water heater 26.2 here has two laterally arranged electric heaters 26.2.1. Furthermore, between one of the heaters 26.2.1 and the in Fig. 5 26.2.2 of the flow heater 26.2, a temperature sensor 36 arranged to measure the temperature in the contact area between the heaters 26.2.1 and the flow channel 26.2.2 and forwarded to an electrical control 38 of the household appliance for further processing. See also Fig. 2 , The fluid-conducting Connections 24, 28, 32, 34 between the tank 26.1 and the flow heater 26.2 and the system 26 and the treatment chamber 2 and the pump 22 are sealed in a manner known to those skilled in the art.

Der Normalbetrieb des Systems 26 wurde bereits umfassend erlƤutert. Nachfolgend wird das erfindungsgemƤƟe Verfahren zur Reinigung des Systems 26 nƤher erlƤutert:The normal operation of the system 26 has already been fully explained. The method according to the invention for cleaning the system 26 will be explained in more detail below:

Bei dem vorliegenden AusfĆ¼hrungsbeispiel wird das Verfahren zur Reinigung des Systems 26 in AbhƤngigkeit des an die elektrische Steuerung 38 weitergeleiteten Ausgangssignals des Temperatursensors 36 automatisch gestartet. Wie bereits erlƤutert, verkalkt der Strƶmungskanal 26.2.2 wƤhrend des Normalbetriebs, wodurch sich der WƤrmedurchgangswiderstand zwischen den Heizungen 26.2.1 und dem von der FlĆ¼ssigkeit durchstrƶmten Inneren des Strƶmungskanals 26.2.2 erhƶht. Entsprechend steigt bei ansonsten gleichen Bedingungen, also gleicher zugefĆ¼hrter elektrischer Leistung, die mittels des Temperatursensors 36 gemessene Temperatur an. WƤhrend die Temperatur bei einem frisch entkalktem System 26 hier bei 125Ā°C bis 135Ā°C liegt, steigt die Temperatur durch die zunehmende Verkalkung auf einen Wert von 159Ā°C an. Die elektrische Steuerung 38 ist hier derart ausgebildet, dass der Benutzer bei einer mit dem Temperatursensor 36 gemessenen Temperatur von 159Ā°C lediglich noch eine vorher festgelegte Anzahl von Anwendungen des HaushaltsgerƤts, beispielsweise von GarvorgƤngen, durchfĆ¼hren kann. Danach ist eine Reinigung, nƤmlich eine Entkalkung, zwingend erforderlich. Das gleiche gilt hier fĆ¼r den Fall, dass die Temperatur einen Wert von 160Ā°C Ć¼bersteigt. Das HaushaltsgerƤt kann erst dann wieder im Normalbetrieb genutzt werden, wenn die erforderliche Reinigung, hier Entkalkung, durchgefĆ¼hrt worden ist. HierfĆ¼r steht die elektrische Steuerung 38 auf dem Fachmann bekannte Weise mit dem Temperatursensor 36 SignalĆ¼bertragungsverbindung und die Heizungen 26.2.1 des Durchlauferhitzers 26.2 werden entsprechend mit bestromt.In the present embodiment, the method of cleaning the system 26 is automatically started in response to the output signal of the temperature sensor 36 relayed to the electric controller 38. As already explained, the flow channel calcifies 26.2.2 during normal operation, which increases the heat transfer resistance between the heaters 26.2.1 and the liquid flowed through the interior of the flow channel 26.2.2. Accordingly, the temperature measured by means of the temperature sensor 36 increases under otherwise identical conditions, ie the same supplied electrical power. While the temperature in a freshly decalcified system 26 here at 125 Ā° C to 135 Ā° C, the temperature rises by the increasing calcification to a value of 159 Ā° C. The electrical control 38 is designed here in such a way that the user can only carry out a predetermined number of applications of the domestic appliance, for example of cooking processes, at a temperature of 159 Ā° C. measured with the temperature sensor 36. Thereafter, a cleaning, namely a descaling, mandatory. The same applies here in the event that the temperature exceeds 160 Ā° C. The household appliance can only be used again in normal operation when the required cleaning, in this case descaling, has been carried out. For this purpose, the electrical controller 38 is known in the art with the temperature sensor 36 signal transmission connection and the heaters 26.2.1 of the water heater 26.2 are energized accordingly.

Nachdem auf die vorgenannte Weise das Verfahren zur Reinigung des Systems 26 automatisch ausgelƶst worden ist, wird der Benutzer Ć¼ber das Anzeigeelement der Bedienblende 10 aufgefordert, das System analog zu dem ausfĆ¼hrlich geschilderten Normalbetrieb mit einer vorher festgelegten Menge an ReinigungsflĆ¼ssigkeit zu befĆ¼llen. Zum Entkalken wird hier verdĆ¼nnte ZitronensƤure als ReinigungsflĆ¼ssigkeit verwendet.After the process for cleaning the system 26 has been automatically triggered in the aforementioned manner, the user is prompted via the display element of the control panel 10 to fill the system with a predetermined amount of cleaning liquid analogous to the detailed normal operation. For descaling, dilute citric acid is used as the cleaning fluid here.

Das System 26 wird solange automatisch mit verdĆ¼nnter ZitronensƤure befĆ¼llt, bis der FĆ¼llstand eine Hƶhe erreicht hat, bei der an der fluidleitenden Verbindung 32 an dem dampfseitigen Ende des Durchlauferhitzers 26.2 zwischen Tank 26.1 und Durchlauferhitzer 26.2 ein durchgehender FlĆ¼ssigkeitsspiegel ausgebildet ist, der mindestens die Hƶhe der Linie 40 in Fig. 5 erreicht hat, so dass in dem System 26 ein Naturumlauf der ReinigungsflĆ¼ssigkeit ermƶglicht ist. Hier wird dies dadurch erreicht, dass das System 26 gezielt Ć¼berfĆ¼llt wird, so dass der tatsƤchliche FlĆ¼ssigkeitsspiegel in den Leitungen 24 und 28 liegt. Die Ć¼berschĆ¼ssige ReinigungsflĆ¼ssigkeit kann auf ein in den Behandlungsraum 2 eingeschobenes AuffangbehƤltnis, hier eine nicht dargestellte Fettpfanne, abgeleitet werden. Der Benutzer wird entsprechend rechtzeitig darauf hingewiesen, die Fettpfanne einzuschieben.The system 26 is automatically filled with dilute citric acid until the level has reached a level at which the fluid-conducting connection 32 at the steam-side end of the flow heater 26.2 between the tank 26.1 and water heater 26.2 a continuous liquid level is formed which at least the height of Line 40 in Fig. 5 has reached, so that in the system 26, a natural circulation of the cleaning liquid is made possible. Here, this is achieved by specifically overfilling the system 26 so that the actual liquid level in the lines 24 and 28 is located. The excess cleaning fluid can be on a retracted into the treatment room 2 collecting container, here a fat pan, not shown, derived. The user is informed in good time to insert the drip pan.

Nun werden die Heizungen 26.2.1 mittels der elektrischen Steuerung 38 automatisch eingeschaltet und die ReinigungsflĆ¼ssigkeit wird auf eine Soll-Temperatur von hier 70Ā°C aufgeheizt. Diese Soll-Temperatur wird dann Ć¼ber eine nicht nƤher dargestellte Temperaturregelung zumindest fĆ¼r eine Reinigungsdauer von hier 60 min. im Wesentlichen konstant gehalten. Dadurch dass die ReinigungsflĆ¼ssigkeit in dem Durchlauferhitzer 26.2 wƤrmer als in dem Tank 26.1 ist, entsteht der gewĆ¼nschte Naturumlauf, also die in Fig. 5 durch Pfeile 42 dargestellte Zirkulation der ReinigungsflĆ¼ssigkeit in dem System 26 ohne eine Pumpe. Der Naturumlauf bewirkt eine gute Durchmischung und Verteilung der ReinigungsflĆ¼ssigkeit, so dass nicht nur der Durchlauferhitzer 26.2 sondern auch der Tank 26.1 und die Verbindungen 32, 34 in gewĆ¼nschter Weise gereinigt, hier entkalkt, werden. Die oben erlƤuterte ƜberfĆ¼llung des Systems 26 mit ReinigungsflĆ¼ssigkeit bewirkt, dass wƤhrend der gesamten Reinigungsdauer der FlĆ¼ssigkeitsspiegel nicht unter die Linie 40 fƤllt, so dass der Naturumlauf wƤhrend der gesamten Reinigungsdauer erhalten bleibt. Eine als Ventil ausgebildete Absperrvorrichtung 44 sorgt dafĆ¼r, dass das System 26 hier wƤhrend der Reinigungsdauer bis auf den Auslass 26.1.2, der lediglich einen kleinen lichten Durchmesser aufweist, geschlossen ist. Siehe hierzu auch Fig. 3. Auf diese Weise ist die GerƤuschemission wƤhrend der Reinigungsdauer deutlich reduziert.Now the heaters 26.2.1 are automatically switched on by means of the electric control 38 and the cleaning liquid is heated to a desired temperature of here 70 Ā° C. This target temperature is then over a temperature control, not shown, at least for a cleaning time of 60 minutes here. kept substantially constant. The fact that the cleaning liquid in the water heater 26.2 is warmer than in the tank 26.1, the desired natural circulation, ie the in Fig. 5 indicated by arrows 42 circulation of the cleaning liquid in the system 26 without a pump. The natural circulation causes a thorough mixing and distribution of the cleaning liquid, so that not only the water heater 26.2 but also the tank 26.1 and the connections 32, 34 are cleaned in the desired manner, here descaled. The above-described overfilling of the system 26 with cleaning liquid causes the liquid level does not fall below the line 40 during the entire cleaning period, so that the natural circulation is maintained during the entire cleaning period. A shut-off device 44 designed as a valve ensures that the system 26 is closed during the cleaning period except for the outlet 26.1.2, which has only a small clear diameter. See also Fig. 3 , In this way, the noise emission during the cleaning period is significantly reduced.

Nach dem Ablauf der Reinigungsdauer veranlasst die elektrische Steuerung 38 eine Anzeige, mittels der der Benutzer aufgefordert wird, das System 26 auf die oben erlƤuterte Weise mit einer vorher festgelegten Menge an SpĆ¼lflĆ¼ssigkeit, hier Wasser, zu fĆ¼llen. Gleichzeitig wird der Naturumlauf im System 26 fortgefĆ¼hrt. Durch die Zugabe der SpĆ¼lflĆ¼ssigkeit in das System 26 wird zum einen die ReinigungsflĆ¼ssigkeit verdĆ¼nnt. Zum anderen wird Ć¼ber den Auslass 26.1.2 das entstandene Reinigungs-/SpĆ¼lmittel-Gemisch auf die in den Behandlungsraum 2 eingeschobene Fettpfanne aus dem System 26 ausgeschleust.After the cleaning period has elapsed, the electrical controller 38 causes a display to prompt the user to fill the system 26 with a predetermined amount of flushing fluid, here water, in the manner discussed above. At the same time, the natural circulation in the system 26 is continued. By adding the rinsing liquid into the system 26, on the one hand, the cleaning liquid is diluted. On the other hand, the resultant cleaning / rinsing agent mixture is discharged from the system 26 via the outlet 26.1.2 onto the drip pan pushed into the treatment space 2.

Der auch wƤhrend des vorgenannten SpĆ¼lvorgangs kontinuierlich fortgesetzte Naturumlauf sorgt fĆ¼r eine gute Durchmischung von SpĆ¼l- und ReinigungsflĆ¼ssigkeit. WĆ¼rde der Naturumlauf nicht fortgefĆ¼hrt, wĆ¼rde der Hauptanteil der dem System 26 zugegebenen SpĆ¼lflĆ¼ssigkeit direkt von dem Einlass 26.1.1 zu dem Auslass 26.1.2 strƶmen, so dass entweder eine nicht ausreichende SpĆ¼lwirkung erreicht wird oder der SpĆ¼lvorgang unzumutbar oft wiederholt werden mĆ¼sste. Dabei wĆ¼rde auch sehr viel SpĆ¼lflĆ¼ssigkeit benƶtigt werden.The continuous natural circulation also during the aforementioned rinsing process ensures a good mixing of rinsing and cleaning fluid. If the natural circulation were not continued, the majority of the rinse liquid added to the system 26 would flow directly from the inlet 26.1.1 to the outlet 26.1.2, so that either an insufficient rinsing effect is achieved or the rinsing process would have to be repeated unreasonably. It would also be needed a lot of rinse liquid.

Bei dem vorliegenden AusfĆ¼hrungsbeispiel wird der SpĆ¼lvorgang, also das Zugeben von SpĆ¼lflĆ¼ssigkeit und das Ausschleusen des Reinigungs-/SpĆ¼lmittel-Gemisches aus dem System 26, insgesamt dreimal direkt nacheinander wiederholt. Damit die Fettpfanne nicht Ć¼berlƤuft, wird der Benutzer Ć¼ber die Anzeige darauf hingewiesen, die Fettpfanne zu leeren.In the present embodiment, the rinsing process, ie the addition of rinsing liquid and the removal of the cleaning / rinsing agent mixture from the system 26, repeated a total of three times in succession. To prevent the drip pan from overflowing, the user is alerted by the display to empty the drip pan.

Das System 26 des vorliegenden AusfĆ¼hrungsbeispiels hat den weiteren Vorteil eines sehr kompakten Aufbaus. Zur fluidleitenden Verbindung von Tank 26.1 und Durchlauferhitzer 26.2 sind lediglich kurze Verbindungen 32, 34 erforderlich.The system 26 of the present embodiment has the further advantage of a very compact construction. For fluid-conducting connection of tank 26.1 and water heater 26.2 only short connections 32, 34 are required.

Die vorliegende AusfĆ¼hrungsform bieten noch weitere Vorteile. Der dem dampfseitigen Ende des Durchlauferhitzers 26.2 zugewandte Abschnitt 26.1.4 des Tanks 26.1 ist als ein parabelfƶrmig gekrĆ¼mmter Umlenkabschnitt ausgebildet. Dadurch ist die gewĆ¼nschte Trennung des wƤhrend des Reinigungsvorgangs und/oder im Normalbetrieb des Systems 26 erzeugten Dampf-Tropfen-Gemisches auf konstruktiv besonders einfache Weise mƶglich. Durch die Integration des hierdurch gebildeten Tropfenabscheiders in den Tank 26.1 ist die Herstellung des Systems 26 weiter vereinfacht und kostengĆ¼nstiger.The present embodiment offers even more advantages. The steam-side end of the water heater 26.2 facing portion 26.1.4 of the tank 26.1 is formed as a parabolic curved deflection section. As a result, the desired separation of the vapor-droplet mixture generated during the cleaning process and / or during normal operation of the system 26 is possible in a structurally particularly simple manner. As a result of the integration of the droplet separator formed in the tank 26.1, the production of the system 26 is further simplified and less expensive.

Figur 6 zeigt eine weitere Variante des gekrĆ¼mmten Umlenkabschnitts fĆ¼r den Tropfenabscheider 26.1.4, welcher ebenfalls als integraler Bestandteil des Tanks 26.1 ausgebildet ist. Der gekrĆ¼mmte Umlenkabschnitt ist auch oberhalb der Verbindung 32 des dampfseitigen Endes angeordnet. Hier ist der Tropfenabscheider 26.1.4 mit einem vergrĆ¶ĆŸerten Abscheideraum oberhalb des dampfseitigen Endes ausgebildet. Der vergrĆ¶ĆŸerte Abscheideraum hat gegenĆ¼ber dem zuvor beschriebenen AusfĆ¼hrungsbeispiel gemƤƟ Figur 4 mehr Volumen fĆ¼r Schaum, der bei einem Reinigungsvorgang anfallen kann. FIG. 6 shows a further variant of the curved deflection section for the mist eliminator 26.1.4, which is also formed as an integral part of the tank 26.1. The curved diverting portion is also located above the connection 32 of the steam-side end. Here, the mist eliminator 26.1.4 is formed with an enlarged separation chamber above the steam-side end. The enlarged separation chamber has over the previously described embodiment according to FIG. 4 more volume for foam, which can occur during a cleaning process.

Die erfindungsgemƤƟe Lƶsung ist nicht auf das erlƤuterte AusfĆ¼hrungsbeispiel begrenzt, sondern auch auf andere HaushaltsgerƤte, in denen Wasserdampf zum Einsatz kommt, anwendbar. Beispielsweise wƤre ein Einsatz in GetrƤnkebereitern, in anderen GargerƤten, wie Dampfgarer, Herde oder dergleichen, in WƤschebehandlungsmaschinen und in GeschirrspĆ¼lmaschinen denkbar.The solution according to the invention is not limited to the illustrated embodiment, but also to other household appliances in which water vapor is used applicable. For example, use in beverage makers, in other cooking appliances such as steamer, stoves or the like, in laundry treatment machines and in dishwashers is conceivable.

So unterschiedlich wie die HaushaltsgerƤte kƶnnen auch die Reinigungsaufgaben und damit auch die verwendeten Reinigungs- und SpĆ¼lflĆ¼ssigkeiten sein. Neben Wasser sind auch andere FlĆ¼ssigkeiten oder in einer FlĆ¼ssigkeit lƶsbare Pulver, verdĆ¼nnt oder unverdĆ¼nnt, als Reinigungs- und/oder SpĆ¼lflĆ¼ssigkeit mƶglich.The cleaning tasks and thus also the cleaning and rinsing liquids used can be as different as the domestic appliances. In addition to water, other liquids or soluble in a liquid powders, diluted or undiluted, as a cleaning and / or rinsing liquid possible.

Anstelle das Verfahren in AbhƤngigkeit der mit dem Temperatursensor 36 gemessenen Temperatur automatisch zu starten, besteht auch die Mƶglichkeit, alternativ oder in ErgƤnzung dazu das Verfahren manuell durch eine Benutzereingabe, in AbhƤngigkeit der Betriebsdauer oder der EinschalthƤufigkeit des Durchlauferhitzers zu starten. Hierzu ist auf dem Fachmann bekannte Weise beispielsweise ein ZƤhl- oder Zeitglied in einer Auswerteschaltung der elektrischen Steuerung anzuordnen.Instead of automatically starting the method as a function of the temperature measured by the temperature sensor 36, it is also possible, alternatively or in addition, to manually start the method by user input, depending on the operating time or the startup frequency of the instantaneous water heater. For this purpose, a counter or timer in an evaluation circuit of the electrical control is to be arranged in a manner known to those skilled in the art, for example.

Claims (10)

Verfahren zur Reinigung, insbesondere zur Entkalkung, eines Systems (26), bestehend aus einem Tank (26.1) zur Bevorratung von Wasser und einem Durchlauferhitzer (26.2) zur Erzeugung von Wasserdampf fĆ¼r einen Behandlungsraum (2) eines HaushaltsgerƤts, wobei der Tank (26.1) und der Durchlauferhitzer (26.2) sowohl an dem dampfseitigen wie auch an dem wasserseitigen Ende des Durchlauferhitzers (26.2) miteinander fluidleitend verbunden sind und das Verfahren die nachfolgenden Verfahrensschritte in der angegebenen Reihenfolge aufweist: - FĆ¼llen des Tanks (26.1) und des Durchlauferhitzers (26.2) mit einer ReinigungsflĆ¼ssigkeit, zumindest bis der FĆ¼llstand eine Hƶhe (40) erreicht hat, bei der an der fluidleitenden Verbindung (32) an dem dampfseitigen Ende des Durchlauferhitzers (26.2) zwischen Tank (26.1) und Durchlauferhitzer (26.2) ein durchgehender FlĆ¼ssigkeitsspiegel ausgebildet ist, so dass in dem System (26) ein Naturumlauf der ReinigungsflĆ¼ssigkeit ermƶglicht ist, - Einschalten des Durchlauferhitzers (26.2) und Regeln der Temperatur der FlĆ¼ssigkeit in dem System (26) auf eine vorher festgelegte Soll-Temperatur, so dass sich in dem System (26) ein Naturumlauf der ReinigungsflĆ¼ssigkeit ergibt, - FĆ¼llen des Tanks (26.1) mit einer vorher festgelegten Menge an SpĆ¼lflĆ¼ssigkeit nach einer vorher festgelegten Reinigungsdauer unter Beibehaltung des Naturumlaufs und - Ausschleusen des Gemisches aus Reinigungs- und SpĆ¼lflĆ¼ssigkeit aus dem System (26). Method for cleaning, in particular for descaling, a system (26), comprising a tank (26.1) for storing water and a water heater (26.2) for generating steam for a treatment chamber (2) of a domestic appliance, the tank (26.1) and the instantaneous water heater (26.2) are fluid-conductively connected to one another both at the steam-side and at the water-side end of the instantaneous water heater (26.2) and the process has the following process steps in the order indicated: - Filling the tank (26.1) and the water heater (26.2) with a cleaning liquid, at least until the level has reached a level (40) at the at the fluid-conducting connection (32) at the steam-side end of the water heater (26.2) between tank ( 26.1) and water heater (26.2) a continuous liquid level is formed, so that in the system (26) a natural circulation of the cleaning liquid is made possible, - turning on the flow heater (26.2) and controlling the temperature of the liquid in the system (26) to a predetermined setpoint temperature such that a natural circulation of the cleaning liquid results in the system (26), - filling the tank (26.1) with a predetermined amount of flushing fluid after a predetermined period of cleaning while maintaining natural circulation and - Outward discharge of the mixture of cleaning and rinsing fluid from the system (26). Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
dass sich die Soll-Temperatur fĆ¼r die FlĆ¼ssigkeit vor dem FĆ¼llen des Tanks (26.1) mit der SpĆ¼lflĆ¼ssigkeit von der Soll-Temperatur nach dem FĆ¼llen des Tanks (26.1) mit der SpĆ¼lflĆ¼ssigkeit unterscheidet.Method according to claim 1,
characterized,
that the target temperature for the liquid before filling the tank (26.1) with the rinsing liquid from the target temperature after filling the tank (26.1) differs with the rinsing liquid. Verfahren nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
dass das FĆ¼llen des Tanks (26.1) mit SpĆ¼lflĆ¼ssigkeit und das Ausschleusen des Gemisches aus Reinigungs- und SpĆ¼lflĆ¼ssigkeit mehrmals direkt nacheinander wiederholt werden.Method according to claim 1 or 2,
characterized,
that the filling of the tank (26.1) with rinsing liquid and the ejection of the mixture of cleaning and rinsing fluid are repeated several times in succession. Verfahren nach mindestens einem der AnsprĆ¼che 1 bis 3,
dadurch gekennzeichnet,
dass das Verfahren in AbhƤngigkeit von einer an dem Durchlauferhitzer (26.2) gemessenen Start-Temperatur oder in AbhƤngigkeit der Betriebsdauer oder der EinschalthƤufigkeit des Durchlauferhitzers (26.2) gestartet wird.Method according to at least one of claims 1 to 3,
characterized,
in that the method is started as a function of a start temperature measured at the instantaneous water heater (26.2) or as a function of the operating time or the switch-on frequency of the instantaneous water heater (26.2). System (26) zur DurchfĆ¼hrung eines Verfahrens gemƤƟ einem der AnsprĆ¼che 1 bis 4, bestehend aus einem Tank (26.1) zur Bevorratung von Wasser und einem Durchlauferhitzer (26.2) zur Erzeugung von Wasserdampf fĆ¼r einen Behandlungsraum (2) eines HaushaltsgerƤts, wobei der Tank (26.1) und der Durchlauferhitzer (26.2) sowohl an dem dampfseitigen wie auch an dem wasserseitigen Ende des Durchlauferhitzers (26.2) miteinander fluidleitend verbunden sind und die fluidleitende Verbindung (32) an dem dampfseitigen Ende in der Betriebslage des Systems (26) eine hƶhere Lage als an dem wasserseitigen Ende (34) einnimmt,
dadurch gekennzeichnet,
dass der Tank (26.1) zur Abscheidung von Tropfen aus dem erzeugten Dampf einen Tropfenabscheider (26.1.4) aufweist, wobei der Tropfenabscheider (26.1.4) als ein integraler Bestandteil des Tanks (26.1) ausgebildet ist.System (26) for carrying out a method according to one of claims 1 to 4, comprising a tank (26.1) for storing water and a water heater (26.2) for generating steam for a treatment chamber (2) of a household appliance, wherein the tank ( 26.1) and the water heater (26.2) both at the steam-side and at the water-side end of the water heater (26.2) are fluidly connected to each other and the fluid-conducting connection (32) at the steam-side end in the operating position of the system (26) a higher position than occupies the water-side end (34),
characterized,
in that the tank (26.1) has a droplet separator (26.1.4) for the separation of droplets from the generated steam, the droplet separator (26.1.4) being formed as an integral part of the tank (26.1). System (26) nach Anspruch 5,
dadurch gekennzeichnet,
dass der Tropfenabscheider (26.1.4) einen gekrĆ¼mmten Umlenkabschnitt zur Umlenkung des Dampf-Tropfen-Gemisches aufweist, welcher oberhalb der fluidleitenden Verbindung (32) an dem dampfseitigen Ende ausgebildet ist.System (26) according to claim 5,
characterized,
that the droplet separator (26.1.4) has a curved deflecting section for deflecting the steam-drop mixture, which above the fluid-conducting connection (32) is formed on the steam-side end. System (26) nach Anspruch 5 oder 6,
dadurch gekennzeichnet,
dass der Umlenkabschnitt parabelfƶrmig gekrĆ¼mmt ausgebildet ist.System (26) according to claim 5 or 6,
characterized,
that the deflection section is formed parabolic curved. System (26) nach mindestens einem der AnsprĆ¼che 5 bis 7,
dadurch gekennzeichnet,
dass der Tank (26.1) einen Einlass (26.1.1) zum BefĆ¼llen mit einer FlĆ¼ssigkeit und einen Auslass (26.1.2) zum Ausschleusen von Ć¼berschĆ¼ssiger FlĆ¼ssigkeit oder Dampf aufweist, wobei der Einlass (26.1.1) Ć¼ber eine Absperrvorrichtung (44) flĆ¼ssigkeitsdicht verschlieƟbar ist.System (26) according to at least one of claims 5 to 7,
characterized,
in that the tank (26.1) has an inlet (26.1.1) for filling with a liquid and an outlet (26.1.2) for discharging excess liquid or vapor, wherein the inlet (26.1.1) is liquid-tight via a shut-off device (44) is closable. System (26) nach mindestens einem der AnsprĆ¼che 5 bis 8,
dadurch gekennzeichnet,
dass an dem Durchlauferhitzer (26.2) ein Temperatursensor (36) angeordnet ist, der zur Steuerung und/oder Regelung eines Verfahrens gemƤƟ einem der AnsprĆ¼che 1 bis 4 mit einer elektrischen Steuerung (38) in SignalĆ¼bertragungsverbindung steht.System (26) according to at least one of claims 5 to 8,
characterized,
in that a temperature sensor (36) which is in signal transmission connection with an electric control (38) for controlling and / or regulating a method according to one of claims 1 to 4 is arranged on the instantaneous water heater (26.2). System (26) nach mindestens einem der AnsprĆ¼che 5 bis 9,
dadurch gekennzeichnet,
dass in einer Auswerteschaltung der elektrischen Steuerung (38) ein ZƤhl- oder Zeitglied zur Steuerung eines Verfahrens gemƤƟ einem der AnsprĆ¼che 1 bis 4 angeordnet ist, das in AbhƤngigkeit der Betriebsdauer oder der EinschalthƤufigkeit des Durchlauferhitzers (26.2) betƤtigbar ist.System (26) according to at least one of claims 5 to 9,
characterized,
that a counter or timing element for controlling a process arranged in accordance with one of claims 1 to 4 in an evaluation circuit of the electrical control (38), which in Dependent on the operating time or the frequency of activation of the instantaneous water heater (26.2) can be actuated.
EP08017435.2A 2007-10-09 2008-10-04 Method for cleaning a system, composed of a tank and a continous-flow heater Active EP2048444B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007048567A DE102007048567B4 (en) 2007-10-09 2007-10-09 Process for cleaning a system consisting of a tank and a water heater, and system

Publications (3)

Publication Number Publication Date
EP2048444A2 true EP2048444A2 (en) 2009-04-15
EP2048444A3 EP2048444A3 (en) 2012-02-01
EP2048444B1 EP2048444B1 (en) 2016-02-24

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DE (1) DE102007048567B4 (en)

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* Cited by examiner, ā€  Cited by third party
Publication number Priority date Publication date Assignee Title
EP2703729A1 (en) * 2012-08-28 2014-03-05 Electrolux Home Products Corporation N.V. A cooking oven with an oven cavity and a cleaning apparatus
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EP3112765A1 (en) * 2015-06-29 2017-01-04 Whirlpool Corporation Steam generation system for use in a cooking appliance
AU2013247086B2 (en) * 2012-04-11 2017-04-20 Electrolux Home Products Corporation N. V. Oven for baking food products
WO2019185321A1 (en) * 2018-03-29 2019-10-03 BSH HausgerƤte GmbH Domestic steam treatment appliance
KR20190142084A (en) * 2018-06-15 2019-12-26 ģ—˜ģ§€ģ „ģž ģ£¼ģ‹ķšŒģ‚¬ Steam generating apparatus and cooking device having the same
KR20190142092A (en) * 2018-06-15 2019-12-26 ģ—˜ģ§€ģ „ģž ģ£¼ģ‹ķšŒģ‚¬ Steam generating apparatus and cooking device having the same

Families Citing this family (5)

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Citations (2)

* Cited by examiner, ā€  Cited by third party
Publication number Priority date Publication date Assignee Title
DE10109251C1 (en) 2001-02-26 2002-08-08 Rational Ag Steam generator, in particular for a cooking appliance
WO2002068876A1 (en) 2001-02-26 2002-09-06 Rational Ag Device and method for cleaning a cooking device

Family Cites Families (4)

* Cited by examiner, ā€  Cited by third party
Publication number Priority date Publication date Assignee Title
DE4034239A1 (en) * 1990-10-27 1992-04-30 Juno Grosskuechen METHOD AND DEVICE FOR OPERATING A STEAM GENERATOR FOR COOKING DEVICES
DE19701090B4 (en) * 1997-01-15 2010-11-11 Meissner, Werner Evaporator unit for dirty liquids
CH691948A5 (en) * 2000-06-28 2001-12-14 V Zug Ag Boiler for steam generator in steam cooking unit, comprises sensors for measuring water and heating element temperatures, and lime scale detection unit utilizing signals from these sensors
DE10259829B4 (en) * 2002-12-19 2005-10-06 Convotherm ElektrogerƤte GmbH Method for decalcifying steam generators for cooking appliances

Patent Citations (2)

* Cited by examiner, ā€  Cited by third party
Publication number Priority date Publication date Assignee Title
DE10109251C1 (en) 2001-02-26 2002-08-08 Rational Ag Steam generator, in particular for a cooking appliance
WO2002068876A1 (en) 2001-02-26 2002-09-06 Rational Ag Device and method for cleaning a cooking device

Cited By (12)

* Cited by examiner, ā€  Cited by third party
Publication number Priority date Publication date Assignee Title
AU2013247086B2 (en) * 2012-04-11 2017-04-20 Electrolux Home Products Corporation N. V. Oven for baking food products
EP2650615B1 (en) * 2012-04-11 2018-01-10 Electrolux Home Products Corporation N.V. Oven for baking food products
EP2703729A1 (en) * 2012-08-28 2014-03-05 Electrolux Home Products Corporation N.V. A cooking oven with an oven cavity and a cleaning apparatus
WO2014032986A1 (en) * 2012-08-28 2014-03-06 Electrolux Home Products Corporation N. V. A cooking oven with an oven cavity and a cleaning apparatus
EP2990727A1 (en) * 2014-09-01 2016-03-02 Miele & Cie. KG Cooking device
EP3112765A1 (en) * 2015-06-29 2017-01-04 Whirlpool Corporation Steam generation system for use in a cooking appliance
US9788679B2 (en) 2015-06-29 2017-10-17 Whirlpool Corporation Steam generation system for use in cooking appliance
US10206532B2 (en) 2015-06-29 2019-02-19 Whirlpool Corporation Steam generation system for use in cooking appliance
US10973359B2 (en) 2015-06-29 2021-04-13 Whirlpool Corporation Steam generation system for use in cooking appliance
WO2019185321A1 (en) * 2018-03-29 2019-10-03 BSH HausgerƤte GmbH Domestic steam treatment appliance
KR20190142084A (en) * 2018-06-15 2019-12-26 ģ—˜ģ§€ģ „ģž ģ£¼ģ‹ķšŒģ‚¬ Steam generating apparatus and cooking device having the same
KR20190142092A (en) * 2018-06-15 2019-12-26 ģ—˜ģ§€ģ „ģž ģ£¼ģ‹ķšŒģ‚¬ Steam generating apparatus and cooking device having the same

Also Published As

Publication number Publication date
DE102007048567A1 (en) 2009-04-16
EP2048444A3 (en) 2012-02-01
DE102007048567B4 (en) 2011-11-24
EP2048444B1 (en) 2016-02-24

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