EP2075368A1 - Method for removing a condensate in a household device for caring for pieces of laundry - Google Patents
Method for removing a condensate in a household device for caring for pieces of laundry Download PDFInfo
- Publication number
- EP2075368A1 EP2075368A1 EP08105997A EP08105997A EP2075368A1 EP 2075368 A1 EP2075368 A1 EP 2075368A1 EP 08105997 A EP08105997 A EP 08105997A EP 08105997 A EP08105997 A EP 08105997A EP 2075368 A1 EP2075368 A1 EP 2075368A1
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- EP
- European Patent Office
- Prior art keywords
- condensate
- air
- collecting container
- collected
- domestic appliance
- 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.)
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Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/32—Control of operations performed in domestic laundry dryers
- D06F58/34—Control of operations performed in domestic laundry dryers characterised by the purpose or target of the control
- D06F58/45—Cleaning or disinfection of machine parts, e.g. of heat exchangers or filters
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/58—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to condensation, e.g. condensate water level
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/36—Condensing arrangements, e.g. control of water injection therefor
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/58—Indications or alarms to the control system or to the user
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/58—Indications or alarms to the control system or to the user
- D06F2105/60—Audible signals
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/20—General details of domestic laundry dryers
- D06F58/24—Condensing arrangements
Definitions
- the invention relates to a method for disposing of a condensate in a domestic appliance for the care of laundry, is collected in the operation of the domestic appliance condensate collected in a sump, wherein the level of condensate collected in the sump is monitored and when a level threshold is exceeded generates a signal indicative of performing a Kondensatentsorgungsvorgangs, or when a level threshold is exceeded, a condensate removal operation is started.
- a domestic appliance in the form of a tumble dryer which has a collecting container for receiving condensate, which is obtained during the drying of laundry items.
- the collecting container is associated with a sensor arrangement, with which in particular a level of the condensate in the collecting container can be determined.
- An indicator is also provided for alerting a user of the domestic appliance to the level when it requires intervention by the user, for example, to empty the collector. Parallel to this display, a running in the household appliance drying process can also be interrupted.
- a tumble dryer is operated as a vented dryer or as a condensation dryer.
- An exhaust air dryer passes heated air once through the laundry items to be dried in the drum and discharges these moisture laden air through an exhaust hose from the exhaust air dryer and out of the room in which it is installed.
- a condensation dryer whose operation is based on the condensation of moisture evaporated from the laundry by means of warm process air does not require an exhaust hose and allows energy recovery from the heated process air, for example by using a heat pump. However, with such a condensation dryer it is generally necessary to collect the accumulated condensate and either to pump it off or to dispose of it by manually emptying collection containers.
- an exhaust air dryer In the case of an exhaust air dryer, on the other hand, moisture laden air is generally passed out of the dryer after passage through a laundry drum. Compared to a condensation dryer, an exhaust air dryer can be made simpler and thus cheaper. An exhaust air dryer draws air from its environment during operation and uses it directly for drying. Such ambient air is usually relatively dry with a relative humidity of significantly less than 100%, and therefore can absorb a relatively large amount of moisture. By comparison, the circulating process air in a condensation dryer can generally only be dehumidified to 100% relative humidity at the lowest temperature present in the process air cycle, which limits its ability to absorb moisture from the objects to be dried and thus imposes some restrictions on the drying process.
- any such heat recovery implies a cooling of the exhaust air, whereby condensate can precipitate out of the exhaust air and must be disposed of.
- the tumble dryer comprises a drum accommodating and moving the laundry into which a supply air stream heated by a heating element flows, while the moist hot air is conducted as exhaust air via an outlet.
- a heat exchanger is arranged in front of the heating element, which is flowed through by the moist hot exhaust air from the container.
- an exhaust air dryer with heat recovery flows usually ambient air (eg, 20 ° C and 60% relative humidity, so-called supply air) in the heat exchanger surface of an air-to-air heat exchanger and is there under cooling from the drying chamber or the Drum heated warm process air heated up.
- ambient air eg, 20 ° C and 60% relative humidity, so-called supply air
- condensate is produced, which is collected or pumped away in a container.
- the amount of accumulating Condensate is a measure of the heat energy released in the heat exchanger and thus a measure of the improvement in energy efficiency.
- a first aspect of the invention relates to a method for disposing of a condensate in a domestic appliance for the care of laundry, is collected in the operation of the domestic appliance accumulating condensate in a sump, wherein the level of the condensate collected in the sump is monitored and when exceeding a Level threshold, a signal is generated as an indication for performing a Kondensatentsorgungsvorgangs, wherein a condensate removal process, a baking process is performed.
- a second aspect of the invention relates to a method for disposing of a condensate in a domestic appliance for the care of laundry, is collected in the operation of the domestic appliance accumulating condensate in a sump, wherein the level of the condensate collected in the sump is monitored and when exceeding a Level threshold, a condensate removal operation is started, wherein as a condensate removal process, a baking process is performed.
- a condensation process of the condensate is performed as a condensate removal operation.
- the disposal of the condensate, which accumulates in the sump, is particularly effective, simple and reliable.
- the condensate removal process is started automatically by the device. Even if there is no user on the device or any previously performed reference was not registered by means of a signal, thereby the overflow of the collecting container can be avoided. It proves to be particularly advantageous if this condensate removal process is started, in particular automatically, after the completion of a care process of the items of laundry. With regard to the processes of the care process on the one hand and the condensate removal process on the other hand, this allows a temporal stringing together, so that both processes can be carried out optimally.
- the collecting container is coupled to a secondary channel, which is arranged to form a main channel, in which the heat exchanger device is arranged, and the air is passed through the secondary channel, at least proportionally, in particular completely.
- the baking process is preferably carried out only when a drum is emptied of laundry.
- the heating process is also preferably carried out by means of a heating device or by means of the heating device and a heat exchange device, in particular a heat pump, of the domestic appliance.
- the level in the collecting container is continuously monitored during operation of the domestic appliance. As a result, overfilling of the collecting container can be avoided.
- the signal gives an indication to a user to start a condensate removal operation by the user after completing a care process of the laundry items.
- the information by means of the signal is thus designed so that a user of the domestic appliance is also informed during the execution of the care process that a condensate disposal should take place, it being indicated by the signal that this condensate disposal after completion of the ongoing Care process should be carried out and dispose of this condensate or a corresponding disposal process should be started after completion of the care process.
- the user is thus informed in time when such a condensate removal process should be started, so that even during the care process there is still a time margin for starting. Since the condensate removal process is subject to specific requirements in particular, it is particularly advantageous that this is performed only after completion of a care process, and the care process is not affected thereby.
- an optical and / or acoustic signal is generated as an indication.
- a user can clearly be given a corresponding display or message.
- the condensate removal process is started automatically by the device. Even if no user is on the device or a possibly previously performed notice was not registered by means of a signal, thereby the overflow of the collection container can be avoided.
- this condensate removal process is started, in particular automatically, after the completion of a care process of the items of laundry.
- this allows a juxtaposition, so that both processes can be carried out optimally.
- process air is conducted out of the domestic appliance during operation of the domestic appliance via a process air guide through a drum for absorbing moisture from the laundry items and after exiting the drum through an exhaust air opening;
- a process air guide through a drum for absorbing moisture from the laundry items and after exiting the drum through an exhaust air opening;
- the condensate is proportionally formed by the condensate collected in the collecting container is expelled in a mist-like manner through the exhaust opening with the discharged process air, whereupon it in a thereto condensed again subsequent exhaust pipe and runs back into the sump.
- Fig. 1 is shown as a sketch of a household appliance for the care of laundry, which is designed as a vented dryer 1.
- the dryer 1 has a process air channel 2 and a drum 3, which is rotatable about an axis 4.
- Process air is guided by means of a blower 5 via a heater 6 through the drum 3 and a lint filter 7.
- the process air is drawn in through a supply air opening 8 and pushed out through an exhaust air opening 9.
- air passes directly from an environment of the dryer 1.
- an exhaust hose 10 To the exhaust port 9 is connected an exhaust hose 10, with which the exhaust air from the dryer 1 away and from a room in which it is placed, is discharged.
- a heat exchange device 11, 12 is present.
- the process air drawn in through the inlet air opening 8 is transferred from the process air flowing out of the drum 3 and the lint filter 7.
- the moist and warm process air to be discharged from the drum 3 is cooled.
- the process air to be supplied to the heating device 6 is preheated.
- the fully heated by the heater 6 process air is passed into the drum 3, where it comes into contact with the laundry to be dried and then flows to the lint filter 7.
- a main part enters the main channel, which passes through the heat exchanger 11, 12, where it gives heat to fresh retracted supply air, which flows through the inlet channel of the heat exchange device 11, 12.
- the amount of heat transferred in this case must be measured on the basis of a concrete specification with regard to the energy balance of the dryer 1 and does not necessarily correspond to the full amount of heat available in the main duct.
- One of the findings derived from this is that the full stream of process air flowing out of the drum 3 does not have to be used for heat exchange. Therefore, it is possible to use a part of the process air flow to dispose of condensate, which is generated during the cooling of the process air in the main channel.
- a secondary channel 13 is provided in which a corresponding part of the process air is introduced past the heat exchanger device 11, 12. Condensate, which accumulates in the main channel, passes through a corresponding channel 14 to the side channel 13th
- the first branch 15 in the process air duct 2 at which the process air stream divides into a first process air stream to the main channel and a second process air stream to the secondary channel 13 and at which the secondary channel 13 branches off from the main channel, is dimensioned so that the second process air stream about 30% of the total Available process air includes.
- the second process air stream absorbs evaporating condensate and reunites at the second branch 16, at which the secondary channel 13 opens again into the main channel, again with the first process air stream.
- a evaporator 17 is arranged in the form of a Ultraschallverneblers.
- a particular advantage of this nebuliser 17 is that it allows the condensate to be distributed in the process air without the process air having to meet specific thermodynamic requirements, in particular having a certain elevated temperature and a certain reduced relative humidity in order to evaporate condensate present as liquid and to be able to record like that.
- the removal of the condensate takes place as a mist, d. H. as a dispersion of liquid in gas.
- This mist-like process air is passed through the auxiliary channel 13 and the exhaust port 9 in the exhaust hose 10.
- the dryer 1 is positioned unfavorably and relatively long exhaust ducts 10 or many sheets are formed in this regard, low temperatures on the exhaust pipe or unfavorable wind constellations cause the exhaust nozzle to the fact that the generated fog-like process air flow condensed very strong on the walls of the exhaust hose 10 and the water runs back into the dryer 1.
- it can then run back into the secondary channel 13 and also in the secondary channel 13 arranged collecting container 21, in which the collecting via the channel 14 condensate, run back.
- Fig. 2 a second embodiment is shown, but the components of the dryer 1 are not shown above the fan 5 and the lint filter 7, since they are the components according to Fig. 1 correspond.
- the heat exchange device 11, 12 is not in a simple countercurrent or cross-flow heat exchanger 11, 12, but is formed by an evaporator 11 and a condenser 12, and a heat pump 11, 12, 18, 19, 20, which additionally Compressor 18, a throttle 19 and a conduit system 20 for a recirculating and cyclically vaporized, to be compressed, to be liquefied and to be expanded refrigerant.
- the main channel and the sub-channel 13 function as in the dryer 1 of the embodiment according to Fig. 1
- the heat pump 11, 12, 18, 19, 20 allows a free adjustment of the temperature level in the main channel 11 and the inlet channel 12, and thus offers further options for optimizing the energy balance of the dryer. 1
- heat pump can be designed as a compressor heat pump or as a Peltier heat pump.
- FIG. 2 equipped with a compressor heat pump dryer 1
- the cooling of the warm, laden with moisture process air substantially in the evaporator 11 of the heat pump, where the heat transferred to evaporate a refrigerant used in the heat pump cycle is used.
- the refrigerant of the heat pump evaporated due to the heating is supplied to the condenser 12 of the heat pump via the compressor 18, where heat is released due to the condensation of the gaseous refrigerant which is used to heat the process air.
- the refrigerant circulates in a closed circuit in which it passes from the condenser 12 via the throttle 19 back to the evaporator 11.
- the dryers 1 are designed to carry out processes for disposing of a condensate.
- the level of the condensate collected in the sump 21 is monitored, and when a level threshold is exceeded, a preferably acoustic signal is generated as an indication of performing a condensate removal operation.
- the level in the collection container 21 is continuously monitored, the signal being an indication to a user of the dryer 1 to start by the user a condensate removal process after completing a care process of the laundry items.
- a bakeout program or a bakeout process is started in which by means of the heat exchange arrangement 11, 12 according to the embodiment in FIG Fig. 1 or with the heat pump 11, 12, 18, 19, 20 according to the embodiment in Fig. 2 in connection with the heating device 6, which incidentally also in the embodiment according to Fig. 2 As mentioned, condensate is disposed of from the sump 21.
- the heating program is performed only with the heater 6.
- the baking process is carried out to the effect that warm and relatively dry air is passed through the condensate collection tray or the collection container 21 and can be absorbed by this air large amounts of condensate and conveyed out of the device.
- the heating step is preferably supported or shortened by the fact that the heated air flow is conducted completely and thus 100% via the auxiliary channel 13. This can be done by a flap which closes the main channel in this baking process.
- the collecting container 21 is dimensioned so that the condensate of at least two successive drying processes under unfavorable boundary conditions in the bottom group of the dryer 1 finds room.
- dryer 1 for carrying out a method in which is monitored to dispose of a condensate, the level of condensate collected in the sump 21 and a condensate removal operation is started when a level threshold is exceeded.
- the methods are designed so that the condensate removal process is started by the device itself and started automatically.
- the condensate removal process is started after the completion of a drying process of the laundry items, and a bakeout process already explained above is carried out as the condensate removal process.
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- Detail Structures Of Washing Machines And Dryers (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Entsorgen eines Kondensats in einem Hausgerät zur Pflege von Wäschestücken, bei dem im Betrieb des Hausgeräts anfallendes Kondensat in einem Sammelbehälter gesammelt wird, wobei der Füllstand des in dem Sammelbehälter gesammelten Kondensats überwacht wird und bei einem Überschreiten eines Füllstand-Schwellwerts ein Signal als Hinweis zum Durchführen eines Kondensatentsorgungsvorgangs erzeugt, oder bei einem Überschreiten eines Füllstand-Schwellwerts ein Kondensatentsorgungsvorgang gestartet wird.The invention relates to a method for disposing of a condensate in a domestic appliance for the care of laundry, is collected in the operation of the domestic appliance condensate collected in a sump, wherein the level of condensate collected in the sump is monitored and when a level threshold is exceeded generates a signal indicative of performing a Kondensatentsorgungsvorgangs, or when a level threshold is exceeded, a condensate removal operation is started.
Ein solches Verfahren ist ersichtlich aus jedem der Patentdokumente
Im Allgemeinen wird ein Wäschetrockner als Ablufttrockner oder als Kondensationstrockner betrieben. Ein Ablufttrockner leitet erwärmte Luft einmal durch die zu trocknenden Wäschestücke in der Trommel und führt diese mit Feuchtigkeit beladene Luft durch einen Abluftschlauch von dem Ablufttrockner und aus dem Raum, in welchem dieser aufgestellt ist, ab. Ein Kondensationstrockner, dessen Funktionsweise auf der Kondensation der mittels warmer Prozessluft aus der Wäsche verdampften Feuchtigkeit beruht, benötigt keinen Abluftschlauch und ermöglicht eine Energierückgewinnung aus der erwärmten Prozessluft, beispielsweise durch Verwendung einer Wärmepumpe. Allerdings ist es bei einem solchen Kondensationstrockner im Allgemeinen erforderlich, dass anfallende Kondensat zu sammeln und entweder abzupumpen oder durch manuelles Entleeren von Auffangbehältern zu entsorgen. Aus der
Bei einem Ablufttrockner wird dagegen im Allgemeinen nach dem Durchgang durch eine Wäschetrommel durch Feuchtigkeit beladene Luft aus dem Trockner geleitet. Gegenüber einem Kondensationstrockner kann ein Ablufttrockner einfacher und somit billiger aufgebaut sein. Ein Ablufttrockner zieht während eines Betriebs Luft aus seiner Umgebung ein und verwendet diese direkt zum Trocknen. Solche Umgebungsluft ist in der Regel vergleichsweise trocken mit einer relativen Feuchte von deutlich weniger als 100 %, und kann deshalb relativ viel Feuchtigkeit aufnehmen. Im Vergleich dazu kann die zirkulierende Prozessluft in einem Kondensationstrockner in der Regel nur auf 100 % relativer Feuchte bei der geringsten, im Prozessluftkreislauf anstehenden Temperatur entfeuchtet werden, was ihre Aufnahmefähigkeit für Feuchtigkeit aus den zu trocknenden Gegenständen begrenzt und damit dem Trocknungsprozess eine gewisse Beschränkung auferlegt.In the case of an exhaust air dryer, on the other hand, moisture laden air is generally passed out of the dryer after passage through a laundry drum. Compared to a condensation dryer, an exhaust air dryer can be made simpler and thus cheaper. An exhaust air dryer draws air from its environment during operation and uses it directly for drying. Such ambient air is usually relatively dry with a relative humidity of significantly less than 100%, and therefore can absorb a relatively large amount of moisture. By comparison, the circulating process air in a condensation dryer can generally only be dehumidified to 100% relative humidity at the lowest temperature present in the process air cycle, which limits its ability to absorb moisture from the objects to be dried and thus imposes some restrictions on the drying process.
Auch in einem Ablufttrockner ist eine Wärmerückgewinnung grundsätzlich möglich, allerdings impliziert jede solche Wärmerückgewinnung eine Abkühlung der Abluft, wobei Kondensat aus der Abluft ausfallen kann und entsorgt werden muss. Gemäß der
Bei einem Ablufttrockner mit Wärmerückgewinnung strömt in der Regel Umgebungsluft (von z. B. 20° C und 60 % relativer Luftfeuchte; so genannte Zuluft) in die Wärmetauscherfläche eines Luft-Luft-Wärmetauschers und wird dort unter Abkühlung der aus der Trocknungskammer bzw. der Trommel gewonnenen warmen Prozessluft aufgeheizt. Abhängig von der Kühlleistung bzw. dem Wärmetausch entsteht Kondensat, das in einem Behälter gesammelt oder abgepumpt wird. Die Menge des anfallenden Kondensats ist ein Maß für die im Wärmetauscher abgegebene Wärmeenergie und somit ein Maß für die Verbesserung der Energieeffizienz.In an exhaust air dryer with heat recovery flows usually ambient air (eg, 20 ° C and 60% relative humidity, so-called supply air) in the heat exchanger surface of an air-to-air heat exchanger and is there under cooling from the drying chamber or the Drum heated warm process air heated up. Depending on the cooling capacity or the heat exchange, condensate is produced, which is collected or pumped away in a container. The amount of accumulating Condensate is a measure of the heat energy released in the heat exchanger and thus a measure of the improvement in energy efficiency.
Es ist Aufgabe der vorliegenden Erfindung, ein Verfahren zu schaffen, bei dem ein in einem Hausgerät angesammeltes Kondensat einfach und zuverlässig entsorgt werden kann und hohe Betriebssicherheit des Hausgeräts beim Sammeln des Kondensats gewährleistet wird.It is an object of the present invention to provide a method in which a condensate accumulated in a domestic appliance can be easily and reliably disposed of and high reliability of the domestic appliance is ensured when collecting the condensate.
Diese Aufgabe wird jeweils durch ein Verfahren, welches die Merkmale nach Anspruch 1 oder 2 aufweist, gelöst. Bevorzugte Weiterbildungen dieser Verfahren sind Gegenstände abhängiger Patentansprüche.This object is achieved in each case by a method having the features of
Ein erster Aspekt der Erfindung betrifft ein Verfahren zum Entsorgen eines Kondensats in einem Hausgerät zur Pflege von Wäschestücken, bei dem im Betrieb des Hausgeräts anfallendes Kondensat in einem Sammelbehälter gesammelt wird, wobei der Füllstand des in dem Sammelbehälter gesammelten Kondensats überwacht wird und bei einem Überschreiten eines Füllstand-Schwellwerts ein Signal als Hinweis zum Durchführen eines Kondensatentsorgungsvorgangs erzeugt wird, wobei als Kondensatentsorgungsvorgang ein Ausheizprozess durchgeführt wird.A first aspect of the invention relates to a method for disposing of a condensate in a domestic appliance for the care of laundry, is collected in the operation of the domestic appliance accumulating condensate in a sump, wherein the level of the condensate collected in the sump is monitored and when exceeding a Level threshold, a signal is generated as an indication for performing a Kondensatentsorgungsvorgangs, wherein a condensate removal process, a baking process is performed.
Ein zweiter Aspekt der Erfindung betrifft ein Verfahren zum Entsorgen eines Kondensats in einem Hausgerät zur Pflege von Wäschestücken, bei dem im Betrieb des Hausgeräts anfallendes Kondensat in einem Sammelbehälter gesammelt wird, wobei der Füllstand des in dem Sammelbehälter gesammelten Kondensats überwacht wird und bei einem Überschreiten eines Füllstand-Schwellwerts ein Kondensatentsorgungsvorgang gestartet wird, wobei als Kondensatentsorgungsvorgang ein Ausheizprozess durchgeführt wird.A second aspect of the invention relates to a method for disposing of a condensate in a domestic appliance for the care of laundry, is collected in the operation of the domestic appliance accumulating condensate in a sump, wherein the level of the condensate collected in the sump is monitored and when exceeding a Level threshold, a condensate removal operation is started, wherein as a condensate removal process, a baking process is performed.
In jedem Falle wird als Kondensatentsorgungsvorgang ein Ausheizprozess des Kondensats durchgeführt. Dadurch erfolgt die Entsorgung des Kondensats, welches sich in dem Sammelbehälter ansammelt, besonders effektiv, einfach und zuverlässig.In any case, a condensation process of the condensate is performed as a condensate removal operation. As a result, the disposal of the condensate, which accumulates in the sump, is particularly effective, simple and reliable.
Es kann vorgesehen sein, dass der Kondensatentsorgungsvorgang durch das Gerät automatisch gestartet wird. Auch dann, wenn kein Nutzer am Gerät ist oder ein eventuell vorher durchgeführter Hinweis mittels eines Signals nicht registriert wurde, kann dadurch das Überlaufen des Sammelbehälters vermieden werden. Besonders bevorzugt erweist es sich, wenn dieser Kondensatentsorgungsvorgang nach dem Abschluss eines Pflegeprozesses der Wäschestücke gestartet, insbesondere automatisch, gestartet wird. Im Hinblick auf die Abläufe des Pflegeprozesses einerseits und des Kondensatentsorgungsvorgangs andererseits, kann dadurch eine zeitliche Aneinanderreihung ermöglicht werden, so dass beide Prozesse jeweils optimal erfolgen können.It can be provided that the condensate removal process is started automatically by the device. Even if there is no user on the device or any previously performed reference was not registered by means of a signal, thereby the overflow of the collecting container can be avoided. It proves to be particularly advantageous if this condensate removal process is started, in particular automatically, after the completion of a care process of the items of laundry. With regard to the processes of the care process on the one hand and the condensate removal process on the other hand, this allows a temporal stringing together, so that both processes can be carried out optimally.
Auch vorzugsweise wird in dem Ausheizprozess erwärmte und trockene Luft über die Oberfläche des gesammelten Kondensats in den Sammelbehälter geleitet, durch welche Kondensat aus dem Sammelbehälter aufgenommen und abgeführt wird. Die das Kondensat aufnehmende Luft wird weiter vorzugsweise über die Abluftöffnung aus dem Hausgerät geleitet. Insbesondere ist der Sammelbehälter mit einem zu einem Hauptkanal, in dem die Wärmetauschvorrichtung angeordnet ist, gelegten Nebenkanal gekoppelt, und die Luft wird zumindest anteilig, insbesondere vollständig, durch den Nebenkanal geleitet.Also preferably, in the bake process, heated and dry air is passed over the surface of the collected condensate into the sump, through which condensate is taken up and removed from the sump. The condensate receiving air is further preferably passed through the exhaust port of the household appliance. In particular, the collecting container is coupled to a secondary channel, which is arranged to form a main channel, in which the heat exchanger device is arranged, and the air is passed through the secondary channel, at least proportionally, in particular completely.
Der Ausheizprozess wird vorzugsweise erst bei einer von Wäschestücken entleerten Trommel durchgeführt.The baking process is preferably carried out only when a drum is emptied of laundry.
Auch vorzugsweise wird der Ausheizprozess mittels einer Heizeinrichtung oder mittels der Heizeinrichtung und einer Wärmetauschvorrichtung, insbesondere einer Wärmepumpe, des Hausgeräts, durchgeführt.The heating process is also preferably carried out by means of a heating device or by means of the heating device and a heat exchange device, in particular a heat pump, of the domestic appliance.
Weiter Vorzugsweise wird der Füllstand im Sammelbehälter kontinuierlich während des Betriebs des Hausgeräts überwacht. Dadurch kann ein Überfüllen des Sammelbehälters vermieden werden.Further preferably, the level in the collecting container is continuously monitored during operation of the domestic appliance. As a result, overfilling of the collecting container can be avoided.
Vorzugsweise gibt das Signal einen Hinweis für einen Nutzer dahingehend, durch den Nutzer einen Kondensatentsorgungsvorgang nach dem Abschluss eines Pflegeprozesses der Wäschestücke zu starten. Die Information mittels des Signals ist also so ausgelegt, dass einem Nutzer des Hausgeräts auch während des Durchführens des Pflegeprozesses mitgeteilt wird, dass eine Kondensatentsorgung erfolgen sollte, wobei durch das Signal angezeigt wird, dass diese Kondensatentsorgung nach dem Abschluss des laufenden Pflegeprozesses durchgeführt werden sollte und dieses Kondensat entsorgen bzw. ein entsprechender Entsorgungsprozess nach dem Abschluss des Pflegeprozesses gestartet werden soll. Dem Nutzer wird somit rechtzeitig angezeigt, wann ein derartiger Kondensatentsorgungsvorgang gestartet werden soll, so dass auch während des Pflegeprozesses noch ein zeitlicher Spielraum für das Starten gegeben ist. Da der Kondensatentsorgungsvorgang insbesondere spezifischen Anforderungen unterliegt, ist es besonders vorteilhaft, dass dieser erst nach Abschluss eines Pflegeprozesses durchgeführt wird, und der Pflegeprozess dadurch nicht beeinträchtigt wird.Preferably, the signal gives an indication to a user to start a condensate removal operation by the user after completing a care process of the laundry items. The information by means of the signal is thus designed so that a user of the domestic appliance is also informed during the execution of the care process that a condensate disposal should take place, it being indicated by the signal that this condensate disposal after completion of the ongoing Care process should be carried out and dispose of this condensate or a corresponding disposal process should be started after completion of the care process. The user is thus informed in time when such a condensate removal process should be started, so that even during the care process there is still a time margin for starting. Since the condensate removal process is subject to specific requirements in particular, it is particularly advantageous that this is performed only after completion of a care process, and the care process is not affected thereby.
Vorzugsweise wird als Hinweis ein optisches und/oder akustisches Signal erzeugt. Dadurch kann einem Nutzer eindeutig eine entsprechende Anzeige bzw. Mitteilung gegeben werden.Preferably, an optical and / or acoustic signal is generated as an indication. As a result, a user can clearly be given a corresponding display or message.
Auch vorzugsweise kann vorgesehen sein, dass der Kondensatentsorgungsvorgang durch das Gerät automatisch gestartet wird. Auch dann, wenn kein Nutzer am Gerät ist oder ein eventuell vorher durchgeführter Hinweis mittels eines Signals nicht registriert wurde, kann dadurch das Überlaufen des Sammelbehälters vermieden werden.Also preferably, it can be provided that the condensate removal process is started automatically by the device. Even if no user is on the device or a possibly previously performed notice was not registered by means of a signal, thereby the overflow of the collection container can be avoided.
Besonders bevorzugt erweist es sich, wenn dieser Kondensatentsorgungsvorgang nach dem Abschluss eines Pflegeprozesses der Wäschestücke gestartet, insbesondere automatisch, gestartet wird. Im Hinblick auf die Abläufe des Pflegeprozesses einerseits und des Kondensatentsorgungsvorgangs andererseits, kann dadurch eine seitliche Aneinanderreihung ermöglicht werden, so dass beide Prozesse jeweils optimal erfolgen können.It proves to be particularly advantageous if this condensate removal process is started, in particular automatically, after the completion of a care process of the items of laundry. With regard to the processes of the care process on the one hand and the condensate removal process on the other hand, this allows a juxtaposition, so that both processes can be carried out optimally.
Ebenfalls bevorzugt wird im Rahmen eines erfindungsgemäßen Verfahrens Prozessluft im Betrieb des Hausgeräts über eine Prozessluftführung durch eine Trommel zur Aufnahme von Feuchte aus den Wäschestücken und nach dem Austritt aus der Trommel durch eine Abluftöffnung aus dem Hausgerät geleitet; so erschließt sich die Anwendung der Erfindung in einem Wäschetrockner oder Waschtrockner des Abluft-Typs.Also preferably, within the scope of a method according to the invention, process air is conducted out of the domestic appliance during operation of the domestic appliance via a process air guide through a drum for absorbing moisture from the laundry items and after exiting the drum through an exhaust air opening; Thus, the application of the invention in a tumble dryer or washer dryer of the exhaust air type opens up.
Weiter bevorzugt wird in einer solchen Anwendung das Kondensat anteilig dadurch gebildet, dass das im Sammelbehälter gesammelte Kondensat durch die Abluftöffnung mit der ausgeleiteten Prozessluft nebelartig ausgetrieben wird, worauf es in einer daran anschließenden Abluftleitung wieder kondensiert und in den Sammelbehälter zurückläuft.Further preferably, in such an application, the condensate is proportionally formed by the condensate collected in the collecting container is expelled in a mist-like manner through the exhaust opening with the discharged process air, whereupon it in a thereto condensed again subsequent exhaust pipe and runs back into the sump.
Ausführungsbeispiele der Erfindung werden nachfolgend anhand schematischer Zeichnungen näher erläutert. Es zeigen:
- Fig. 1
- eine schematische Darstellung eines Ausführungsbeispiels eines Trockners mit Wärmerückgewinnung, welcher zur Ausführung der erfindungsgemäßen Verfahren ausgelegt ist; und
- Fig. 2
- eine schematische Darstellung für ein zweites Ausführungsbeispiel eines Trockners mit welchem die erfindungsgemäßen Verfahren durchgeführt werden können.
- Fig. 1
- a schematic representation of an embodiment of a dryer with heat recovery, which is designed for carrying out the method according to the invention; and
- Fig. 2
- a schematic representation of a second embodiment of a dryer with which the inventive method can be performed.
In den Figuren sind gleiche oder funktionsgleiche Elemente jeweils mit gleichen Bezugszeichen versehen.In the figures, identical or functionally identical elements are each provided with the same reference numerals.
In
Zum Transport des Kondensats wird zweckmäßigerweise ein natürliches Gefälle, welches durch entsprechende Konstruktion des Hauptkanals und einen Anordnung des Nebenkanals 13 unter dem Hauptkanal gebildet werden kann, ausgenutzt. Die erste Verzweigung 15 im Prozessluftkanal 2, an der sich der Prozessluftstrom in einen ersten Prozessluftstrom zum Hauptkanal und einen zweiten Prozessluftstrom zum Nebenkanal 13 aufteilt und an der der Nebenkanal 13 vom Hauptkanal abzweigt, wird so bemessen, dass der zweite Prozessluftstrom etwa 30 % der gesamten verfügbaren Prozessluft umfasst. Im Nebenkanal 13 nimmt der zweite Prozessluftstrom verdunstendes Kondensat auf und vereinigt sich an der zweiten Verzweigung 16, an der der Nebenkanal 13 wieder in den Hauptkanal mündet, wieder mit dem ersten Prozessluftstrom. Im Nebenkanal 13 ist ein Verdunster 17 in Form eines Ultraschallverneblers angeordnet. Ein besonderer Vorteil dieses Verneblers 17 liegt darin, dass mit ihm das Kondensat in der Prozessluft verteilt werden kann, ohne dass die Prozessluft spezifische thermodynamische Anforderungen erfüllen, insbesondere eine gewisse erhöhte Temperatur und eine gewisse reduzierte relative Feuchte aufweisen muss, um als Flüssigkeit vorliegendes Kondensat verdunsten und so aufnehmen zu können. Der Abtransport des Kondensats erfolgt als Nebel, d. h. als Dispersion von Flüssigkeit in Gas.For the transport of the condensate is expediently a natural gradient, which can be formed by appropriate construction of the main channel and an arrangement of the
Diese nebelartige Prozessluft wird über den Nebenkanal 13 und die Abluftöffnung 9 in den Abluftschlauch 10 geleitet. Gerade dann, wenn der Trockner 1 ungünstig positioniert ist und relativ lange Abluftleitungen 10 oder viele Bögen diesbezüglich ausgebildet sind, können niedrige Temperaturen am Abluftrohr oder auch ungünstige Windkonstellationen am Ausblasstutzen dazu führen, dass der erzeugte nebelartige Prozessluftstrom sehr stark an den Wandungen des Abluftschlauchs 10 kondensiert und das Wasser zurück in den Trockner 1 läuft. Insbesondere kann es dann zurück in den Nebenkanal 13 und auch in den am Nebenkanal 13 angeordneten Sammelbehälter 21, in dem auch das über die Rinne 14 einlaufende Kondensat gesammelt wird, zurücklaufen.This mist-like process air is passed through the
In
Der wesentliche Unterschied zum Ausführungsbeispiel gemäß
Obwohl beide Ausführungsbeispiele mit einem Ablufttrockner und einer offenen Prozessluftführung erläutert sind, kann vorgesehen sein, dass die Prozessluft zumindest teilweise auch zirkulierend in dem Trockner 1 geführt werden kann.Although both embodiments are explained with an exhaust air dryer and an open process air duct, it can be provided that the process air can be circulated at least partially also in the dryer 1.
Die in
Bei beiden Ausführungen ist vorgesehen, dass die Trockner 1 zur Durchführung von Verfahren zum Entsorgen eines Kondensats ausgelegt sind. Der Füllstand des in dem Sammelbehälter 21 gesammelten Kondensats wird überwacht und bei einem Überschreiten eines Füllstand-Schwellwerts wird ein vorzugsweise akustisches Signal als Hinweis zum Durchführen eines Kondensatentsorgungsvorgangs erzeugt. Der Füllstand im Sammelbehälter 21 wird kontinuierlich überwacht, wobei das Signal den Hinweis für einen Nutzer des Trockners 1 dahingehend gibt, durch den Nutzer einen Kondensatentsorgungsvorgang nach dem Abschluss eines Pflegeprozesses der Wäschestücke zu starten.In both embodiments, it is provided that the dryers 1 are designed to carry out processes for disposing of a condensate. The level of the condensate collected in the
In diesem Zusammenhang wird bei dem Kondensatentsorgungsvorgang ein Ausheizprogramm bzw. ein Ausheizprozess gestartet, bei welchem mittels der Wärmetauschanordnung 11, 12 gemäß der Ausführung in
Es kann auch vorgesehen sein, dass das Ausheizprogramm lediglich mit der Heizeinrichtung 6 durchgeführt wird. Bei dem Kondensatentsorgungsvorgang wird der Ausheizprozess dahingehend durchgeführt, dass warme und relativ trockene Luft über die Kondensatauffangwanne bzw. den Sammelbehälter 21 geführt wird und durch diese Luft große Mengen Kondensat aufgenommen und aus dem Gerät gefördert werden können. Bevorzugt unterstützt bzw. verkürzt wird der Ausheizschritt dadurch, dass der aufgeheizte Luftstrom vollständig und somit zu 100 % über den Nebenkanal 13 geleitet wird. Dies kann durch eine Klappe erfolgen, welche den Hauptkanal bei diesem Ausheizvorgang verschließt.It can also be provided that the heating program is performed only with the
Grundsätzlich ist es vorteilhaft, wenn der Sammelbehälter 21 so dimensioniert ist, dass das Kondensat von mindestens zwei aufeinanderfolgenden Trocknungsprozessen unter ungünstigen Randbedingungen in der Bodengruppe des Trockners 1 Platz findet.In principle, it is advantageous if the collecting
Es kann auch vorgesehen sein, dass die in den
Claims (13)
dadurch gekennzeichnet, dass
als Kondensatentsorgungsvorgang ein Ausheizprozess durchgeführt wird.A method for disposing of a condensate in a domestic appliance (1) for the care of laundry, in which accumulating in operation of the domestic appliance (1) condensate is collected in a collecting container (21), wherein the level of condensate collected in the collecting container (21) is monitored and when a level threshold is exceeded, generating a signal indicative of performing a condensate removal operation;
characterized in that
As a condensate removal process, a baking process is performed.
dadurch gekennzeichnet, dass
als Kondensatentsorgungsvorgang ein Ausheizprozess durchgeführt wird.A method for disposing of a condensate in a domestic appliance (1) for the care of laundry, in which accumulating in operation of the domestic appliance (1) condensate is collected in a collecting container (21), wherein the level of condensate collected in the collecting container (21) is monitored and when a level threshold is exceeded, a condensate removal operation is started,
characterized in that
As a condensate removal process, a baking process is performed.
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DE102007062836A DE102007062836A1 (en) | 2007-12-27 | 2007-12-27 | Method for disposing of a condensate in a domestic appliance for the care of laundry items |
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EP2075368A1 true EP2075368A1 (en) | 2009-07-01 |
EP2075368B1 EP2075368B1 (en) | 2012-06-27 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102010039552A1 (en) | 2010-08-20 | 2012-02-23 | BSH Bosch und Siemens Hausgeräte GmbH | Laundry treatment device with sieve holder and method for operating a laundry treatment device with a lint filter |
WO2016182346A1 (en) | 2015-05-11 | 2016-11-17 | Lg Electronics Inc. | Laundry treatment apparatus |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102008032801B4 (en) | 2008-07-11 | 2020-08-06 | BSH Hausgeräte GmbH | Exhaust air dryer |
DE102009028071A1 (en) * | 2009-07-29 | 2011-02-03 | BSH Bosch und Siemens Hausgeräte GmbH | Water-conducting household appliance |
DE102016202114A1 (en) * | 2016-02-12 | 2017-08-17 | BSH Hausgeräte GmbH | Home appliance and method for operating a household appliance |
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EP2075368B1 (en) | 2012-06-27 |
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