EP2740827A1 - Assembly with vacuum generation device and method for its operation - Google Patents
Assembly with vacuum generation device and method for its operation Download PDFInfo
- Publication number
- EP2740827A1 EP2740827A1 EP20120401243 EP12401243A EP2740827A1 EP 2740827 A1 EP2740827 A1 EP 2740827A1 EP 20120401243 EP20120401243 EP 20120401243 EP 12401243 A EP12401243 A EP 12401243A EP 2740827 A1 EP2740827 A1 EP 2740827A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- water
- steam
- washing
- tub
- descaling
- 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
Links
- 238000000034 method Methods 0.000 title claims description 15
- 238000005406 washing Methods 0.000 claims abstract description 55
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 6
- 239000002244 precipitate Substances 0.000 claims abstract description 4
- 238000005086 pumping Methods 0.000 claims abstract 9
- 239000008237 rinsing water Substances 0.000 claims abstract 5
- 239000013505 freshwater Substances 0.000 claims description 16
- 238000011282 treatment Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 3
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 3
- 239000004571 lime Substances 0.000 claims description 3
- 239000010865 sewage Substances 0.000 claims description 2
- 230000007423 decrease Effects 0.000 claims 2
- 239000000470 constituent Substances 0.000 claims 1
- 239000004572 hydraulic lime Substances 0.000 claims 1
- 238000002386 leaching Methods 0.000 claims 1
- 244000007645 Citrus mitis Species 0.000 abstract 1
- 230000001276 controlling effect Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 230000002308 calcification Effects 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000019589 hardness Nutrition 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012432 intermediate storage Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Classifications
-
- 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
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/40—Steam generating arrangements
-
- 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
- D06F33/00—Control of operations performed in washing machines or washer-dryers
- D06F33/30—Control of washing machines characterised by the purpose or target of the control
-
- 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
- D06F2103/18—Washing liquid level
-
- 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
- D06F2105/02—Water supply
Definitions
- the invention relates to a method for operating a washing machine, in particular a drum washing machine according to the preamble of claim 1 and a washing machine for carrying out the method according to the preamble of claim 5.
- EP 2 402 498 A1 It is known to use a steam generating device, which is fed directly from the fresh water supply and in which the fresh water supplied in a storage tank is heated by a heater for the purpose of generating steam. The generated steam is then blown into the laundry drum to be able to act on the laundry contained therein.
- the available fresh water contains more or less shares of various hardnesses.
- the lime dissolved in the water can precipitate after heating the water and precipitate on heating devices or on parts that come into contact with the water. Therefore, there is a big problem with washing machines with a steam generating device in the aforementioned manner is that form in the course of time considerable limescale in the steam generator. A removal of these residues is extremely difficult and is only associated with a very high cost. In extreme cases, the steam generator can even become unusable.
- EP 2 381 029 A1 It is also known to use in a washing machine, the existing for the heating of the wash water heater for the production of steam.
- the radiator of the machine is just flooded and the water around the radiator heated so much that steam can occur. Due to the natural buoyancy of this steam can then get into the laundry drum and in contact with the laundry. In this way, although a certain smoothing effect for the laundry can be effected, but this is not as pronounced as in the direct injection of steam into the washing drum.
- the invention thus raises the problem of providing for a washing machine a method by which the calcification in the steam generating unit is prevented or at least is reduced to a degree, which can extend the life of the steam generating unit significantly.
- a washing machine 1 Via the fresh water connection 2, water can be supplied via the detergent dispenser 3 and the connection line 2.1 into the tub of the washing machine 1.
- the drum washing machine shown here has a washing drum 5 for receiving the laundry.
- control panel the switching and display elements of the washing machine are symbolically indicated, as well as the program control unit 14, which controls the washing programs and the entire program sequence in the washing machine 1.
- the heater 6 is arranged, via which the introduced fresh water can be heated.
- the heating process is controlled in a known manner by a temperature sensor, not shown here.
- the water levels in the washing machine are controlled by the pressure switch 13 in conjunction with the program control unit 14 and can vary depending on the program Levels are set.
- the pressure switch 13 is connected in the region of the water outlet 17 via a so-called air trap to the tub.
- a level 17 is symbolized, in which the heater 6 is barely covered with water.
- This level is set when a so-called smoothing program is to be performed.
- the water is heated to such an extent that steam or moisture-enriched air can form.
- This air-vapor mixture can then ascend into the washing drum 5 and come into contact with the laundry.
- This measure certain smoothing effects or energy savings can be achieved.
- This type of steam generation can be used in different program sequences. After completion of this done in the lower part of the machine steam generation then the heated, remaining in the tub water can then be supplied to the steam generator 7 to serve here for the generation of steam.
- a ball valve 16 is shown, which closes the tub in the usual way as a check valve against the subsequent sewer system.
- the wastewater can be pumped through the drain hose 15 to the outside.
- the pump unit 10 is designed here as a two-way pump, which can be switched once as a drain pump and the other as a circulation pump. Of course, two separate pumps can also be used.
- the indicated in the lower sewage path filter device 11 may be provided in addition to the usual lint filter to filter out any suspended and foreign matter from the water can.
- the pressure switch 13 regulates the water level to the level 17 shown in the drawing. This water level is measured so that the radiator of the heater 6 is at least covered with water. Subsequently, the heater 6 is turned on and the water is heated to a temperature in order to cause both steam and on the other hand to cause the precipitation of lime.
- the temperature range in question is 60 ° to 90 ° C.
- the heated water from the pump unit 10 can be pumped into the steam generating device 7, where it is then available for steam generation. From there, the steam is then blown into the washing drum 5 for intensive steam treatment.
- the heating process and the formation of steam by the heater 6 may be timed as needed. It can be done via the pressure switch 13 and an additional adjustable minimum level refueling of fresh water when the level drops below the surface of the radiator.
- a descaling program can now also advantageously be carried out.
- a descaling agent is introduced into the Waschstoffein Textilkasten 3, which is flushed via the fresh water supply 2 into the tub.
- the liquid added with the descaling agent is then heated by the heating device 6 to a temperature value set according to the program and can then be pumped into the steam generating unit 7 via the pump unit 10. From here, then enriched with the descaling rinse water passes back into the tub 4. In the circulation process, this process can be maintained as needed until the rinse water with the descaling has its effect on both the heater 6 and the steam generator 7 has met.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Betreiben einer Waschmaschine insbesondere einer Trommelwaschmaschine gemäß Oberbegriff des Anspruch 1 und eine Waschmaschine zur Durchführung des Verfahrens gemäß Oberbegriff des Anspruchs 5.The invention relates to a method for operating a washing machine, in particular a drum washing machine according to the preamble of claim 1 and a washing machine for carrying out the method according to the preamble of
Bei Waschmaschinen ist es bekannt, zur Verbesserung der erzielbaren Behandlungsergebnisse die zu behandelnde Wäsche mit Dampf zu beaufschlagen. Durch den Einsatz von Dampf soll die Knitterbildung in der Wäsche verhindert werden oder es sollen am Ende des Programms eventuell vorhandene Knitter aus der Wäsche entfernt werden.In washing machines, it is known to apply to improve the achievable treatment results, the laundry to be treated with steam. The use of steam is intended to prevent creasing in the laundry or to remove any creases from the laundry at the end of the program.
Aus
Bekanntlich enthält das zur Verfügung stehende Frischwasser mehr oder weniger Anteile von diversen Härtebildnern. Insbesondere der im Wasser gelöste Kalk kann nach dem Aufheizen des Wassers ausfallen und sich an Heizvorrichtungen oder an Teilen niederschlagen, die mit dem Wasser in Berührung kommen. Deshalb besteht ein großes Problem bei Waschmaschinen mit einer Dampferzeugungseinrichtung in der vorgenannten Art darin, dass sich im Laufe der Zeit erhebliche Kalkrückstände im Dampferzeuger bilden. Eine Entfernung dieser Rückstände gestaltet sich äußerst schwierig und ist nur mit einem sehr hohen Aufwand verbunden. Im Extremfall kann der Dampferzeuger sogar unbrauchbar werden.As is known, the available fresh water contains more or less shares of various hardnesses. In particular, the lime dissolved in the water can precipitate after heating the water and precipitate on heating devices or on parts that come into contact with the water. Therefore, there is a big problem with washing machines with a steam generating device in the aforementioned manner is that form in the course of time considerable limescale in the steam generator. A removal of these residues is extremely difficult and is only associated with a very high cost. In extreme cases, the steam generator can even become unusable.
Aus
Auf diese Weise kann zwar ein gewisser Glättungseffekt für die Wäsche bewirkt werden, jedoch ist dieser nicht so stark ausgeprägt wie beim direkten Einblasen von Dampf in die Waschtrommel.Out
In this way, although a certain smoothing effect for the laundry can be effected, but this is not as pronounced as in the direct injection of steam into the washing drum.
Der Erfindung stellt sich somit das Problem, für eine Waschmaschine ein Verfahren bereitzustellen, durch das das Verkalken in der Dampferzeugungseinheit verhindert wird oder zumindest auf ein Maß reduziert wird, wodurch sich die Lebensdauer der Dampferzeugungseinheit deutlich verlängern lässt.The invention thus raises the problem of providing for a washing machine a method by which the calcification in the steam generating unit is prevented or at least is reduced to a degree, which can extend the life of the steam generating unit significantly.
Erfindungsgemäß wird dieses Problem durch ein Verfahren mit den Merkmalen des Patentanspruchs 1 gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den hierzu nachfolgenden Unteransprüchen.
Eine erfindungsgemäß ausgebildete Waschmaschine ist im Anspruch 5 aufgeführt.According to the invention, this problem is solved by a method having the features of patent claim 1. Advantageous embodiments and modifications of the invention will become apparent from the dependent claims hereinafter.
An inventively designed washing machine is listed in
Die mit der Erfindung erreichbaren Vorteile bestehen insbesondere darin, dass sich durch die verfahrensgemäßen Maßnahmen die Verkalkung in der Dampferzeugungseinheit weitestgehend verhindern lässt, da die Dampfeinheit nach dem Aufheizen des Frischwassers durch die im Laugenbehälter vorhandene Heizvorrichtung nahezu mit kalkfreiem Wasser beschickt wird. Ein weiterer Vorteil besteht darin, dass der bei einer Waschmaschine mit einer separaten Dampfeinheit übliche Zwischenspeichertank für das zulaufende Frischwasser entfallen kann.The achievable with the present invention consist in particular that can be largely prevented by the procedural measures, the calcification in the steam generating unit, since the steam unit is charged after heating the fresh water through the heater present in the tub almost lime-free water. Another advantage is that the usual in a washing machine with a separate steam unit intermediate storage tank for the incoming fresh water can be omitted.
Durch die Kombination mit einem in der Waschmaschine bei unverändertem Aufbau durchführbaren Entkalkungsprogramm und durch Zugabe eines Entkalkungsmittels, lässt sich ein sehr vorteilhafter Synergieeffekt nutzen. Dadurch kann nun nicht nur wie bekannt der Heizkörper in der Waschmaschine sondern auch die Dampferzeugungseinheit regelmäßig entkalkt werden.The combination with a decalcifying program which can be carried out in the washing machine with an unchanged structure and by adding a descaling agent makes it possible to use a very advantageous synergistic effect. As a result, not only as known, the radiator in the washing machine but also the steam generator can be decalcified regularly.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung rein schematisch dargestellt und wird nachfolgend näher beschrieben. Es zeigt
- Figur 1
- ein vereinfachtes Prinzipschaubild einer Waschmaschine mit den zur Erläuterung der Erfindung notwendigen Bauteilen.
- FIG. 1
- a simplified schematic diagram of a washing machine with the necessary components for explaining the invention.
In der Zeichnung sind die im oberen Bereich übliche Bauteile einer Waschmaschine 1 dargestellt. Über den Frischwasseranschluss 2 kann Wasser über den Waschmitteleinspülkasten 3 und die Verbindungsleitung 2.1 in den Laugenbehälter der Waschmaschine 1 zugeführt werden. Die hier dargestellte Trommelwaschmaschine weist zur Aufnahme der Wäsche eine Waschtrommel 5 auf.In the drawing, the usual components in the upper part of a washing machine 1 are shown. Via the
In der Bedienblende sind symbolisch die Schalt- und Anzeigeelemente der Waschmaschine angedeutet, sowie die Programmsteuereinheit 14, die die Waschprogramme sowie den gesamten Programmablauf in der Waschmaschine 1 steuert.In the control panel, the switching and display elements of the washing machine are symbolically indicated, as well as the
Im unteren Bereich des Laugenbehälters 4 ist die Heizvorrichtung 6 angeordnet, über die das eingeleitete Frischwasser aufgeheizt werden kann. Der Aufheizvorgang wird dabei in bekannter Weise von einem hier nicht näher dargestellten Temperaturfühler gesteuert.
Die Wasserstände in der Waschmaschine werden durch den Druckwächter 13 in Verbindung mit der Programmsteuereinheit 14 gesteuert und können je nach Programm auf unterschiedliche Niveaus eingestellt werden. Der Druckwächter 13 ist im Bereich des Wasserablaufs 17 über eine so genannte Luftfalle an den Laugenbehälter angeschlossen.In the lower region of the
The water levels in the washing machine are controlled by the
In der Zeichnung ist hier ein Niveau 17 symbolisiert, bei dem die Heizvorrichtung 6 nur knapp mit Wasser bedeckt wird. Dieses Niveau wird eingestellt, wenn ein so genanntes Glättungsprogramm durchgeführt werden soll. Dabei wird das Wasser so stark erhitzt, dass sich Dampf bzw. mit Feuchtigkeit angereicherte Luft bilden kann. Dieses Luft-Dampfgemisch kann dann in die Waschtrommel 5 aufsteigen und in Kontakt mit der Wäsche gelangen.
Mit dieser Maßnahme können gewisse Glättungseffekte oder auch Energieeinsparungen erzielt werden. Diese Art der Dampferzeugung kann in unterschiedlichen Programmabläufen zum Einsatz kommen.
Nach Beendigung dieser im unteren Bereich der Maschine erfolgten Dampferzeugung kann dann das aufgeheizte, im Laugenbehälter verbleibende Wasser anschließend der Dampferzeugungseinrichtung 7 zugeführt werden, um auch hier für der Generierung von Dampf zu dienen.In the drawing, a
With this measure, certain smoothing effects or energy savings can be achieved. This type of steam generation can be used in different program sequences.
After completion of this done in the lower part of the machine steam generation then the heated, remaining in the tub water can then be supplied to the
Im Ablaufsystem der Waschmaschine ist noch ein Kugelventil 16 dargestellt, welches den Laugenbehälter in der üblichen Weise als Rückschlagventil gegen das nachfolgende Abwassersystem verschließt.
Über die dargestellte Pumpeneinheit 10 kann das Abwasser über den Ablaufschlauch 15 nach außen abgepumpt werden. Die Pumpeneinheit 10 ist hier als Zweiwegepumpe ausgebildet, die einmal als Ablaufpumpe und zum anderen als Umwälzpumpe geschaltet werden kann.
Es können aber natürlich auch zwei separate Pumpen zum Einsatz kommen.In the drainage system of the washing machine is still a
About the illustrated
Of course, two separate pumps can also be used.
In ihrer Funktion als Umwälzpumpe kann diese über die Verbindungsleitung 12 Wasser aus dem Laugenbehälter 4 in die Dampferzeugungseinrichtung 7 befördern, um dort - wie bereits erwähnt - bestimmungsgemäß Dampf generieren zu können.In its function as a circulating pump, it can convey water from the
Die im unteren Abwasserweg angedeutete Filtervorrichtung 11 kann zusätzlich zu dem üblichen Flusenfilter vorgesehen werden, um eventuelle Schweb- und Fremdstoffe aus dem Wasser ausfiltern zu können.The indicated in the lower sewage
Die Funktion des erfindungsgemäßen Verfahrens ist wie folgt:The function of the method according to the invention is as follows:
Gesteuert von der Programmsteuereinheit 14 wird programmgemäß Frischwasser dem Laugenbehälter 4 zugeführt. Der Druckwächter 13 regelt dabei den Wasserstand auf das in der Zeichnung dargestellte Niveau 17 ein. Dieser Wasserstand wird so bemessen, dass der Heizkörper der Heizvorrichtung 6 zumindest mit Wasser bedeckt ist. Anschließend wird die Heizvorrichtung 6 eingeschaltet und das Wasser auf eine Temperatur erhitzt, um einerseits Dampf entstehen zu lassen und andererseits das Ausfällen von Kalk zu bewirken. Der hierfür in Frage kommende Temperaturbereich liegt bei 60 ° bis 90 °C.Controlled by the
Nach erreichen des eingestellten Temperaturwertes bzw. Ablauf einer vorgesehenen Dampfbehandlung kann das aufgeheizte Wasser von der Pumpeneinheit 10 in die Dampferzeugungseinrichtung 7 gepumpt werden, wo es dann für die Dampferzeugung zur Verfügung steht. Von dort aus wird der Dampf dann für eine intensive Dampfbehandlung in die Waschtrommel 5 eingeblasen.
Der Aufheizvorgang und die Bildung von Dampf durch die Heizvorrichtung 6 können -je nach Bedarf - zeitlich gesteuert werden. Dabei kann über den Druckwächter 13 und eine zusätzlich einstellbare Minimalstufe das Nachtanken von Frischwasser erfolgen, wenn das Niveau unterhalb der Oberfläche des Heizkörpers absinkt.After reaching the set temperature value or expiration of an intended steam treatment, the heated water from the
The heating process and the formation of steam by the
Bei der wie vorstehend beschrieben ausgebildeten Waschmaschine kann nun noch in vorteilhafter Weise ein Entkalkungsprogramm durchgeführt werden. Dabei wird in den Waschmitteleinspülkasten 3 ein Entkalkungsmittel eingefüllt, welches über die Frischwasserzuführung 2 in den Laugenbehälter eingespült wird. Die mit dem Entkalkungsmittel versetzte Flüssigkeit wird nun von der Heizvorrichtung 6 auf einen programmgemäß eingestellten Temperaturwert aufgeheizt und kann über die Pumpeneinheit 10 anschließend in die Dampferzeugungseinheit 7 gepumpt werden. Von hier aus gelangt dann das mit dem Entkalkungsmittel angereicherte Spülwasser wieder zurück in den Laugenbehälter 4.
Im Umwälzverfahren kann dieser Prozess je nach Bedarf aufrecht erhalten werden, bis das Spülwasser mit dem Entkalkungsmittel seine Wirkung sowohl an der Heizvorrichtung 6 als auch an der Dampferzeugungseinrichtung 7 erfüllt hat.In the case of the washing machine constructed as described above, a descaling program can now also advantageously be carried out. In this case, a descaling agent is introduced into the Waschmitteleinspülkasten 3, which is flushed via the
In the circulation process, this process can be maintained as needed until the rinse water with the descaling has its effect on both the
- 1.1.
- WaschmaschineWashing machine
- 2.Second
- FrischwasseranschlußFresh water connection
- 2.12.1
- Verbindungsleitung zum LaugenbehälterConnecting line to the tub
- 3.Third
- Waschmitteleinspülkastendetergent dispenser
- 4.4th
- Laugenbehältertub
- 5.5th
- Waschtrommelwashing drum
- 6.6th
- Heizvorrichtung im LaugenbehälterHeating device in the tub
- 7.7th
- DampferzeugungseinrichtungSteam generator
- 8.8th.
- Heizvorrichtung für DampferzeugungseinrichtungHeating device for steam generator
- 9.9th
- Dampfzuführungsteam supply
- 10.10th
- Pumpeneinheit (Umwälz-/Ablaufpumpe)Pump unit (circulating / drain pump)
- 11.11th
- Filterfilter
- 12.12th
- Verbindungsleitungconnecting line
- 13.13th
- Druckwächterpressure switch
- 14.14th
- Programmsteuerungprogram control
- 15.15th
- Ablaufschlauchdrain hose
- 16.16th
- Kugelventilball valve
- 17.17th
- Niveau WasserstandLevel water level
- 18.18th
- AblauftopAblauftop
Claims (7)
und mit einer Programmsteuereinrichtung zur Steuerung der Waschprogramme und Programmabläufe,
dadurch gekennzeichnet,
dass die Dampferzeugungseinrichtung (7) mit Wasser zur Generierung von Dampf gespeist wird, welches von der im Laugenbehälter (4) angeordneten Heizvorrichtung (6) mindestens auf eine Temperatur erhitzt wurde, die ausreicht, um das Ausfällen von im Wasser gelösten Härtebildnern, insbesondere von Kalk zu bewirken.A method for operating a washing machine, in particular a drum washing machine, with a washing drum for receiving the laundry to be washed, a fresh water supply, a tub for receiving the washing and rinsing water, a heater for heating the washing and rinsing water in the tub, a steam generating device for the supply of steam into the washing drum, a pumping device for pumping out the service water after completion of the washing process, a water level sensor for controlling and controlling the water levels in the machine according to the program,
and with a program control device for controlling the washing programs and program sequences,
characterized,
in that the steam generating device (7) is supplied with water for the generation of steam which has been heated by the heating device (6) arranged in the tub (4) to at least a temperature sufficient to precipitate hardness constituents dissolved in the water, in particular lime to effect.
dadurch gekennzeichnet,
dass eine vorbestimmte Wassermenge dem Laugenbehälter (4) auf ein Niveau (17) zugeführt wird, bei der der Heizkörper (6) vom Wasser umgeben ist,
dass diese Wassermenge auf eine Temperatur erhitzt wird, bei der Dampf entsteht und dieser Dampf durch Auftrieb in die in der Waschtrommel (5) befindliche Wäsche gelangen kann,
dass das nach dieser Dampfbehandlung aufgeheizte und im Laugenbehälter (4) verbleibende Restwasser mittels einer Pumpvorrichtung (10) der Dampferzeugungseinrichtung (7) zwecks Generierung von Dampf zugeführt wird,
und dass der in der Dampferzeugungseinrichtung (7) mit diesem Wasser erzeugte Dampf in die Waschtrommel (5) geleitet wird.A method of operating a washing machine according to claim 1,
characterized,
that a predetermined amount of water is supplied to the tub (4) to a level (17) at which the heating body (6) is surrounded by water,
that this amount of water is heated to a temperature at which steam is generated and this vapor can reach the laundry located in the washing drum (5) by buoyancy,
that the heated after this steam treatment and in the tub (4) residual water by means of a pumping device (10) of the steam generating device (7) is supplied for the purpose of generating steam,
and that the steam generated in the steam generating means (7) with this water is fed into the washing drum (5).
dadurch gekennzeichnet,
dass die vorbestimmte Wassermenge und der sich dadurch im Laugenbehälter (4) einstellende Wasserstand von einem Druckwächter (13) überwacht und gesteuert wird
und dass der Druckwächter (13) das Nachtanken von Frischwasser veranlasst, wenn das Niveau des Wasserstandes unterhalb der Oberfläche der Heizvorrichtung (6) absinkt.A method of operating a washing machine according to claim 2,
characterized,
that the predetermined amount of water and the thereby adjusting in the tub (4) water level is monitored and controlled by a pressure switch (13)
and that the pressure switch (13) causes the refilling of fresh water when the level of the water level below the surface of the heater (6) decreases.
dadurch gekennzeichnet,
dass nach einer vorbestimmbaren Zeit der Dampfbehandlung in der Waschmaschine oder nach Erreichen einer bestimmten Anzahl von Dampfbehandlungen ein Entkalkungsprogramm durchgeführt wird, welches umfasst
characterized,
that after a predeterminable time of the steam treatment in the washing machine or after reaching a certain number of steam treatments, a descaling program is carried out, which comprises
mit einer Waschtrommel zur Aufnahme der zu waschenden Wäsche, einer Zuführvorrichtung für Frischwasser, einem Laugenbehälter zur Aufnahme des Wasch- und Spülwassers, einer Heizvorrichtung für das Aufheizen des Wasch- und Spülwassers im Laugenbehälter, einer Dampferzeugungseinrichtung für die Zuführung von Dampf in die Waschtrommel, einer Pumpvorrichtung zum Abpumpen des Brauchwassers nach Beendigung des Waschvorgangs, einem Wasserstandssensor zur Regelung und Steuerung der programmgemäß vorgesehenen Wasserstände in der Maschine,
und mit einer Programmsteuereinrichtung zur Steuerung der Waschprogramme und Programmabläufe,
dadurch gekennzeichnet,
dass von der Programmsteuereinrichtung (14) in Verbindung mit einem Druckwächter (13) der Wasserzulauf in den Laugenbehälter(4) derart steuerbar ist, dass die Heizvorrichtung (6) mit Wasser bedeckt ist und die zugelaufene Wassermenge auf eine Temperatur aufheizbar ist, bei der im Wasser gelöste Härtebilder, insbesondere der im Wasser gelöste Kalk, ausfällt und dass nach dem Erhitzen das im Laugenbehälter (4) verbleibende Wasser mittels einer Umwälzpumpe (10) in die Dampferzeugungseinheit (7) gepumpt wird, in der dieses Wasser für die Generierung von Dampf für den Dampfbehandlungsprozess genutzt wird.Washing machine for carrying out the method according to claim 1,
with a washing drum for receiving the laundry to be washed, a supply device for fresh water, a tub for receiving the washing and rinsing water, a heater for heating the washing and rinsing water in the tub, a steam generating device for supplying steam into the washing drum, a Pumping device for pumping out the service water after completion of the washing process, a water level sensor for controlling and controlling the water levels in the machine according to the program,
and with a program control device for controlling the washing programs and program sequences,
characterized,
that the program control device (14) in conjunction with a pressure switch (13) the water inlet into the tub (4) is controllable such that the heating device (6) is covered with water and the accumulated amount of water can be heated to a temperature at the Water dissolved hardness images, in particular the dissolved in the water lime, precipitates and that after heating in the tub (4) remaining water is pumped by a circulating pump (10) in the steam generating unit (7) in which this water for the generation of steam for the steam treatment process is used.
dadurch gekennzeichnet,
dass der Druckwächter (13) das Nachtanken von Frischwasser veranlasst, wenn das Niveau des Wasserstandes unterhalb der Oberfläche der Heizvorrichtung (6) absinkt.Washing machine according to claim 5,
characterized,
that the pressure switch (13) causes refueling of fresh water when the level of the water level below the surface of the heater (6) decreases.
dadurch gekennzeichnet,
dass durch die Programmsteuereinrichtung (14) ein Entkalkungsprogramm steuerbar ist, bei dem ein Entkalkungsmittel mit einer vorbestimmten Wassermenge in den Laugenbehälter (4) einspülbar ist,
dass das mit dem Entkalkungsmittel versetzte Wasser von der Heizvorrichtung (6) auf eine für die Wirkung der Entkalkerlösung notwendige Temperatur aufheizbar ist,
und dass diese aufgeheizte Entkalkerlösung von einer Umwälzpumpe (10) im Kreislauf über die Dampferzeugungseinrichtung (7) zurück in den Laugenbehälter (4) befördert werden kann.Washing machine for carrying out the method according to claim 4,
characterized,
in that a descaling program can be controlled by the program control device (14), in which a descaling agent having a predetermined amount of water can be flushed into the suds container (4),
that the offset with the descaling water from the heating device (6) is heatable to a necessary for the action of the descaling temperature,
and that this heated descaling solution can be conveyed by a circulating pump (10) in the circuit via the steam generating device (7) back into the tub (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP12401243.6A EP2740827B1 (en) | 2012-12-04 | 2012-12-04 | Wasching machine with steam generator and method for its operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP12401243.6A EP2740827B1 (en) | 2012-12-04 | 2012-12-04 | Wasching machine with steam generator and method for its operation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2740827A1 true EP2740827A1 (en) | 2014-06-11 |
| EP2740827B1 EP2740827B1 (en) | 2016-04-20 |
Family
ID=47681568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP12401243.6A Active EP2740827B1 (en) | 2012-12-04 | 2012-12-04 | Wasching machine with steam generator and method for its operation |
Country Status (1)
| Country | Link |
|---|---|
| EP (1) | EP2740827B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014100072A1 (en) * | 2014-01-07 | 2015-07-09 | Miele & Cie. Kg | Washing machine or washer-dryer, as well as methods for operating it |
| CN110952284A (en) * | 2018-09-26 | 2020-04-03 | Bsh家用电器有限公司 | Laundry care appliance with filter element |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006129912A1 (en) * | 2005-05-31 | 2006-12-07 | Lg Electronics Inc. | A washing machine generating and using the steam |
| EP2295855A1 (en) * | 2009-08-18 | 2011-03-16 | BSH Bosch und Siemens Hausgeräte GmbH | Steam separator and method of separating steam and water in a laundry appliance |
| EP2381029A1 (en) | 2010-04-26 | 2011-10-26 | Miele & Cie. KG | Method for operating a washing machine and washing machine |
| EP2402498A1 (en) | 2010-07-02 | 2012-01-04 | Miele & Cie. KG | Method for operating a laundry handling machine with steam creation device and laundry handling machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2604739B1 (en) * | 2011-12-13 | 2015-04-08 | Electrolux Home Products Corporation N.V. | Washing machine with recirculation pump |
-
2012
- 2012-12-04 EP EP12401243.6A patent/EP2740827B1/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006129912A1 (en) * | 2005-05-31 | 2006-12-07 | Lg Electronics Inc. | A washing machine generating and using the steam |
| EP2295855A1 (en) * | 2009-08-18 | 2011-03-16 | BSH Bosch und Siemens Hausgeräte GmbH | Steam separator and method of separating steam and water in a laundry appliance |
| EP2381029A1 (en) | 2010-04-26 | 2011-10-26 | Miele & Cie. KG | Method for operating a washing machine and washing machine |
| EP2402498A1 (en) | 2010-07-02 | 2012-01-04 | Miele & Cie. KG | Method for operating a laundry handling machine with steam creation device and laundry handling machine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014100072A1 (en) * | 2014-01-07 | 2015-07-09 | Miele & Cie. Kg | Washing machine or washer-dryer, as well as methods for operating it |
| CN110952284A (en) * | 2018-09-26 | 2020-04-03 | Bsh家用电器有限公司 | Laundry care appliance with filter element |
| CN110952284B (en) * | 2018-09-26 | 2023-12-12 | Bsh家用电器有限公司 | Laundry care appliance with filter element |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2740827B1 (en) | 2016-04-20 |
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