EP2474261A2 - Procédé pour l'exécution d'un programme de rinçage - Google Patents

Procédé pour l'exécution d'un programme de rinçage Download PDF

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Publication number
EP2474261A2
EP2474261A2 EP11401673A EP11401673A EP2474261A2 EP 2474261 A2 EP2474261 A2 EP 2474261A2 EP 11401673 A EP11401673 A EP 11401673A EP 11401673 A EP11401673 A EP 11401673A EP 2474261 A2 EP2474261 A2 EP 2474261A2
Authority
EP
European Patent Office
Prior art keywords
condenser
program
heating
rinsing
cleaning
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.)
Withdrawn
Application number
EP11401673A
Other languages
German (de)
English (en)
Other versions
EP2474261A3 (fr
Inventor
Andre Bertram
Tobias Dahms
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP2474261A2 publication Critical patent/EP2474261A2/fr
Publication of EP2474261A3 publication Critical patent/EP2474261A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0047—Energy or water consumption, e.g. by saving energy or water
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4285—Water-heater arrangements
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4287—Temperature measuring or regulating arrangements
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0021—Regulation of operational steps within the washing processes, e.g. optimisation or improvement of operational steps depending from the detergent nature or from the condition of the crockery
    • A47L15/0026—Rinsing phases
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0021—Regulation of operational steps within the washing processes, e.g. optimisation or improvement of operational steps depending from the detergent nature or from the condition of the crockery
    • A47L15/0028—Washing phases
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4291—Recovery arrangements, e.g. for the recovery of energy or water
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/12—Water temperature
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/06—Water heaters

Definitions

  • the invention relates to a method for carrying out a washing program in a dishwasher, which contains at least the program sections cleaning, intermediate rinsing and rinsing, wherein at least in the program sections cleaning and rinsing takes place a heating liquid located in a washing container and this both an electric heater and a Condenser a heat pump can be used.
  • Dishwashers also called dishwashers, are known per se from the prior art, as well as methods for operating such machines.
  • Dishwashers are used for dishwashing.
  • the dishwasher passes through a wash program, at the end of the cleaned and usually dried dishes is.
  • a wash program As part of the Spülprogrammabwicklung a plurality of individual program sections to go through, at least some of which provide the use of heated rinsing liquid. Since water is usually introduced in the dishwasher in the cold state, it is therefore necessary in such cases of heating, for which purpose previously known from the prior art automatic dishwashers are equipped with an electric heater.
  • Electric heaters of prior art automatic dishwashers provide about 2 to 3 kW heating power. If you wanted to replace the electric heater completely by a heat pump, so this would also provide a heating power of about 2 to 3 kW.
  • a heat pump that provides such heating power is far too large in terms of its geometric dimensions for the installation space provided by a dishwasher. The complete replacement of an electric heater by a heat pump is thus out of the question, at least not without a considerable increase in the dimensions of the dishwasher.
  • the installation space made available by a typical automatic dishwasher is generally sufficient for a heat pump, which provides a heating power of about 500 watts to 600 watts.
  • a heat pump which provides a heating power of about 500 watts to 600 watts.
  • Heat pumps as such are known per se from the prior art. They typically have an evaporator, a compressor and a condenser. In order to save costs and installation space in view of the use of a heat pump in connection with a dishwasher, it is proposed with the invention to use, on the heat pump side, a compressor which has a comparatively low power of, for example, about 200 watts. With a typical heat pump factor of 3, the heat pump generates a heat output of approx. 600 watts at the condenser.
  • a further problem is that for the requirement to heat to temperatures up to 75 ° C, as required for example in Intensivzziprogrammen, the technical complexity of the heat pump is significantly increased, especially since the efficiency of the heat pump decreases with increasing temperature difference.
  • a heat pump is used to heat the liquid in the washing container.
  • the heating of the rinsing liquid is carried out but not only by the condenser of the heat pump, but this is switched on an electric heater, and that according to the invention, if the condenser alone can not provide the required heat output and the rinsing liquid must be heated to temperatures at which the Heat pump would work inefficient, or if the sole heating of the liquid by means of heat pump takes too long.
  • the heat pump used according to the invention thus operates alone when the heating power achieved by the heat pump is sufficient to achieve the predetermined rinsing temperature in the respective rinsing phase.
  • an intermediate rinsing is arranged between the program section cleaning and the program section rinsing. This serves to carry out a rinsing liquid exchange, if necessary for the removal of rinsing residues and / or cleaner residues.
  • the electric heater is turned off during such intermediate rinsing.
  • the method implementation according to the invention is intended to continue to operate the heat pump during this intermediate phase. This has the effect that it comes to an immediate heating of the introduced in exchange new in the dishwasher rinse liquid. As a consequence, this measure also contributes to being able to switch on the electric heater as late as possible during the second heating phase and thus to save energy.
  • a first heating phase at the beginning of the program section rinsing for further energy consumption minimization initially only the condenser is operated as a heater and a connection of the electric heating takes place only in the further course.
  • the second heating phase is followed by a third heating phase, in which only the electric heater is operated until a desired final temperature is reached. This avoids inefficient operation of the heat pump.
  • the phases can be switched time-controlled. This is always useful if a given program duration is to be adhered to. Additionally or alternatively, a control can be effected as a function of the rinsing liquid temperature. This also makes the heat pump operable only in the efficient working area.
  • the automatic dishwashing machine for carrying out the method has a control device.
  • This control device has a measuring device and a comparison circuit, wherein detected by the measuring device, the actual temperature of the rinsing liquid and the comparator circuit, the measured actual temperature is compared with a predetermined target temperature, wherein in the case of a too low actual temperature, the electrical Heating is switched on.
  • the process execution according to the invention allows to be used also in intensive and / or rapid rinsing programs.
  • the sole heat-up portion of the heat pump in such rinsing programs may be minimized compared to standard standard rinsing programs, the use of the heat pump also results in a reduced energy requirement in such rinse program developments.
  • FIG. 1 can be seen in a schematic representation of the principle of a compression heat pump 1.
  • the compression heat pump 1, short heat pump 1 has an evaporator 2, a compressor 3, a condenser 4 and a throttle point 5, which is indicated here as a capillary.
  • the evaporator 2, the compressor 3, the condenser 4 and the throttle point 5 are part of a closed flow circuit 6, which is flowed through by a refrigerant, starting from the evaporator 2, to the compressor 3, to the condenser 4, to the throttle point 5 and finally back to the evaporator. 2
  • a heat pump 1 constructed according to the previously described principle is in an in FIG. 2 Dishwashers 9 shown installed.
  • a heat source in the illustration after FIG. 1 shown as arrow 7, is used in this case, the installation space of the dishwasher 9, that is, for example, the kitchen.
  • the installation space is deprived of heat, for example by means of an air heat exchanger. It can be an in FIG. 1 not shown fan 10 are used to supply the air heat exchanger sufficient amounts of air.
  • a compressor 3 is particularly suitable a reciprocating or rotary compressor, which have an electric drive motor. Such compressors are particularly suitable because they can be switched over the already provided by a dishwasher 9 electrical power supply.
  • FIG. 2 discloses a dishwasher 9 according to the invention, which has a heat pump 1, as in their schematic functioning in FIG. 1 is shown.
  • the condenser 4 is designed as a tube bundle heat exchanger. It is arranged within the washing container 13 provided by the automatic dishwasher 9, specifically directly above the base plate 12. In the intended use case, the liquefier 4 is thus washed around by the washing liquid located inside the automatic dishwashing machine 9.
  • the automatic dishwashing machine 9 also has an electrically operated heater 11. This is also mounted near the bottom in the automatic dishwasher 9, that is to say directly above the base plate 12 of the automatic dishwasher 9.
  • the condenser 4 and / or the electric heater 11 may also be arranged elsewhere in the washing compartment 13.
  • a fan 10 may serve to ensure the supply of a sufficient amount of air to the air heat exchanger.
  • a fan 10 is exemplary in FIG. 2 shown.
  • FIG. 3 allows the method implementation according to the invention to be recognized on the basis of a diagrammatic representation of the program sequence.
  • the washing temperature T is plotted over the program running time t.
  • the solid curve denoted by 16 represents a method sequence according to the invention
  • the dashed curve denoted by 17 corresponds to a program sequence according to the prior art, according to which exclusively an electrical heater for flushing liquid heating is used.
  • the turn-on 18.1 of the heat pump 1 and 18.2 of the electric heater 11 for the process sequence according to the invention (solid curve 16) are shown in the diagram.
  • the program sequence shown comprises three program sections, namely the cleaning a, the intermediate rinsing b and the rinsing c.
  • the program sequence 16 according to the invention or the program sequence 17 according to the prior art are as follows:
  • rinsing liquid is initially introduced into the rinsing container 13 in the cleaning program section a.
  • the electric heater 11 switches on and it starts in a relatively short time heating the rinse water up to 45 ° C. This temperature is reached after about 20 minutes. Thereafter, the heater is switched off, the temperature drops as in FIG. 3 shown in the subsequent holding time to 40 ° C.
  • the inventive method according to curve 16 begins in the cleaning program section a also with the introduction of water into the washing 13.
  • the heat pump 1 is started immediately at the beginning of the water inlet.
  • the maximum temperature is reached by the low heat output of the condenser 4 until about one hour, which greatly shortens the holding time. So that this reduction does not adversely affect the cleaning performance during the cleaning program section a, a higher maximum temperature of about 50 ° C is selected.
  • the intermediate purging program section b a first change of the rinsing liquid takes place. This reduces the temperature.
  • the electric heater 11 is not operated.
  • the heat pump 1 is also switched on during the intermediate flushing. This makes sense because it keeps most of the heat energy stored in the appliance and in the crockery or in the cutlery and thus is still available at the beginning of the final rinse program section c.
  • the representation after FIG. 3 concerns a low temperature program. But even with a rapid and / or intensive program can be achieved by the combination of the two heaters, that is, the heat pump 1 on the one hand and the electric heater 11 on the other hand, a higher heat output and thus a lower heating time. In this case, the heating system must already be switched on in the cleaning program section, with the temperature profile being similar to that of rinsing in the low-temperature program (program sections a1, a2 and a3). Thus, when using a 2 kW electrical heater 11 and a 0.6 kW heat pump 1, a total heating power of 2.6 kW can be achieved, which shortens the heating time compared to a pure electric heater 11 by more than 20%. Since the heat pump wins 400 watts from the ambient air, it also saves 15% energy.

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  • Washing And Drying Of Tableware (AREA)
EP11401673.6A 2011-01-05 2011-12-20 Procédé pour l'exécution d'un programme de rinçage Withdrawn EP2474261A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011000042A DE102011000042A1 (de) 2011-01-05 2011-01-05 Verfahren zum Durchführen eines Spülprogramms

Publications (2)

Publication Number Publication Date
EP2474261A2 true EP2474261A2 (fr) 2012-07-11
EP2474261A3 EP2474261A3 (fr) 2016-10-05

Family

ID=45497786

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11401673.6A Withdrawn EP2474261A3 (fr) 2011-01-05 2011-12-20 Procédé pour l'exécution d'un programme de rinçage

Country Status (3)

Country Link
US (1) US20120167920A1 (fr)
EP (1) EP2474261A3 (fr)
DE (1) DE102011000042A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2810595A1 (fr) * 2013-06-07 2014-12-10 Asko Appliances AB Machine à laver la vaisselle avec élément de chauffage
EP2777474A3 (fr) * 2013-02-26 2015-01-28 Miele & Cie. KG Lave-vaisselle
WO2019034370A1 (fr) * 2017-08-17 2019-02-21 Arcelik Anonim Sirketi Lave-vaisselle du type à pompe à chaleur dans lequel tout engorgement de réfrigérant est empêché

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012105907A1 (de) 2012-07-03 2014-01-09 Miele & Cie. Kg Geschirrspülmaschine und Verfahren zum Betreiben einer Geschirrspülmaschine
DE102012105902A1 (de) 2012-07-03 2014-05-08 Miele & Cie. Kg Geschirrspülmaschine und Verfahren zum Betreiben einer Geschirrspülmaschine
DE102012105903A1 (de) 2012-07-03 2014-01-09 Miele & Cie. Kg Geschirrspülmaschine
DE102012105906A1 (de) 2012-07-03 2014-01-09 Miele & Cie. Kg Geschirrspülmaschine und Verfahren zum Betreiben einer Geschirrspülmaschine
DE102012105904A1 (de) 2012-07-03 2014-01-09 Miele & Cie. Kg Geschirrspülmaschine und Verfahren zum Aufheizen von Spülflotte in einer Geschirrspülmaschine
DE102013101861A1 (de) 2013-02-26 2014-08-28 Miele & Cie. Kg Geschirrspülautomat, insbesondere Haushaltsgeschirrspülmaschine
DE102013102157B4 (de) 2013-03-05 2015-02-19 Miele & Cie. Kg Verfahren zum Betrieb eines mit einer Wärmepumpeneinrichtung ausgrüsteten Geschirrspülautomaten
DE102013114269A1 (de) 2013-12-18 2015-06-18 Miele & Cie. Kg Geschirrspülmaschine
DE102013114273B4 (de) 2013-12-18 2019-11-14 Miele & Cie. Kg Geschirrspülmaschine
PL3082554T3 (pl) * 2013-12-19 2018-05-30 Electrolux Appliances Aktiebolag Zmywarka do naczyń zawierająca system pompy ciepła
KR102094340B1 (ko) 2014-03-17 2020-03-30 삼성전자주식회사 건조장치를 구비하는 가전제품
DE102015109509B3 (de) * 2015-06-15 2016-10-06 Miele & Cie. Kg Geschirrspülmaschine, insbesondere Haushaltsgeschirrspülmaschine
KR102595662B1 (ko) * 2018-11-27 2023-10-31 엘지전자 주식회사 식기세척기

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DE19707287C2 (de) * 1997-02-24 2000-06-08 Premark Feg L L C N D Ges D St Wärmepumpe für eine Geschirrspülvorrichtung
US6233958B1 (en) * 1999-09-15 2001-05-22 Lockhead Martin Energy Research Corp. Heat pump water heater and method of making the same
DE102007009382A1 (de) * 2007-02-20 2008-08-21 Melag Ohg Verfahren zur Reinigung und zur thermischen Desinfektion von Gegenständen
DE102007017284B3 (de) * 2007-04-12 2008-11-13 BSH Bosch und Siemens Hausgeräte GmbH Temperaturerfassung bei Zeolithtrocknung
DK2446795T3 (da) * 2009-02-09 2014-01-27 V Zug Ag Opvaskemaskine med varmepumpe
SI2193741T1 (en) * 2010-03-15 2018-08-31 V-Zug Ag A household appliance with a heat storage device and a thermal coupling

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
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None

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2777474A3 (fr) * 2013-02-26 2015-01-28 Miele & Cie. KG Lave-vaisselle
US9526395B2 (en) 2013-02-26 2016-12-27 Miele & Cie. Kg Automatic dishwasher
EP2810595A1 (fr) * 2013-06-07 2014-12-10 Asko Appliances AB Machine à laver la vaisselle avec élément de chauffage
WO2019034370A1 (fr) * 2017-08-17 2019-02-21 Arcelik Anonim Sirketi Lave-vaisselle du type à pompe à chaleur dans lequel tout engorgement de réfrigérant est empêché

Also Published As

Publication number Publication date
DE102011000042A1 (de) 2012-07-05
US20120167920A1 (en) 2012-07-05
EP2474261A3 (fr) 2016-10-05

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