EP2378942A2 - Procédé pour faire fonctionner un lave-vaisselle - Google Patents

Procédé pour faire fonctionner un lave-vaisselle

Info

Publication number
EP2378942A2
EP2378942A2 EP09795372A EP09795372A EP2378942A2 EP 2378942 A2 EP2378942 A2 EP 2378942A2 EP 09795372 A EP09795372 A EP 09795372A EP 09795372 A EP09795372 A EP 09795372A EP 2378942 A2 EP2378942 A2 EP 2378942A2
Authority
EP
European Patent Office
Prior art keywords
water
program
tank
softening
dishwasher
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Withdrawn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
EP09795372A
Other languages
German (de)
English (en)
Inventor
Helmut Jerg
Michael Rosenbauer
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
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 BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP2378942A2 publication Critical patent/EP2378942A2/fr
Withdrawn legal-status Critical Current

Links

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
    • A47L15/42—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
    • 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
    • A47L15/0023—Water filling
    • 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
    • A47L15/4229—Water softening 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
    • A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
    • A47L15/4219—Water recirculation
    • A47L15/4221—Arrangements for redirection of washing water, e.g. water diverters to selectively supply the spray arms
    • 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
    • A47L2401/22—Number of operational cycles
    • 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
    • A47L2501/34—Change machine operation from normal operational mode into special mode, e.g. service mode, resin regeneration mode, sterilizing mode, steam mode, odour eliminating mode or special cleaning mode to clean the hydraulic circuit
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Definitions

  • the invention relates to a method for operating a dishwasher.
  • Dishwashers are known to have water softening systems with which the fresh water used during a rinse cycle is softened.
  • DE 10 2004 019 330 A1 discloses a dishwashing machine with a water softening system to which a water quantity measuring device is assigned.
  • the measuring device detects the actual amount of fresh water used per wash cycle. After reaching a maximum für Albanymenge the softening plant starts under high energy expenditure a regeneration process to free the water softening system from the absorbed lime.
  • the use of such a measuring device increases the component and cost.
  • the object of the invention is to provide a dishwasher in which the energy expenditure associated with the regeneration is reduced.
  • fresh water is supplied from the water supply network of the dishwasher and softened in a softening device of the dishwasher.
  • the softened water is applied to items to be cleaned or dried. At least once, the softened water applied to the items to be cleaned or dried is cached in a tank. The cached in the tank, softened water is then, for example, in a subsequent wash program, again applied to be cleaned or to be dried items. Therefore, according to the invention, there is a temporary storage and reuse of the already softened water.
  • the softening device of the dishwasher can therefore be charged with a reduced amount of fresh water from the water supply network. Accordingly, the number of between the regenerating softening operations are increased, whereby with a larger number of rinses performed in the arithmetic mean, the energy consumption per cycle is reduced.
  • the softened water temporarily stored in the tank can be passed directly into a rinsing container which serves to receive items to be cleaned.
  • the feeding of the cached water in the tank can preferably be done bypassing the softening device, d. h., the cached water is passed to the water softening device directly into the washing.
  • the cached in the tank water can be used in at least one program step of a subsequent, a plurality of program steps comprehensive wash program.
  • a wash program may include the program steps pre-wash, clean, intermediate rinse and dry.
  • the water stored in the tank can be used in a pre-rinse step of the rinse program.
  • the cached in the tank water may have been passed in the previous wash program during or after execution of a Swiss Kunststoff suitses in the tank.
  • the regeneration process of the softening device can take place when a measuring sensor has detected a maximum softenable, guided by the softening device amount of fresh water.
  • the number of rinsing programs to be carried out until the regeneration process of the softening device is determined empirically in a control device of the dishwasher.
  • the regeneration process of the softening device can be carried out according to a predetermined or predefinable number of water softening processes by the control device.
  • the number of softening operations in particular by an additional softening process, can be increased become.
  • the fact is taken into account that the amount of fresh water required per wash program is reduced from the water supply network.
  • the washing container can be repeatedly filled with water when performing a washing program, in particular in
  • the softening capacity of the softening device can be designed so that after at least every second, in particular every third
  • FIG. 1 shows in a schematic block diagram a dishwasher with a tank or a liquor storage tank.
  • washing container 1 shows schematically a dishwasher with a washing compartment 1 delimiting a washing compartment.
  • a washing compartment 1 delimiting a washing compartment.
  • dishes in dish racks 3, 5 are arranged in the washing compartment of the washing container 1.
  • two spraying arms 7, 8 provided in different spraying levels are arranged by way of example, via which the washware to be cleaned is supplied with washing liquid.
  • a pump pot 1 1 is provided with associated circulating pump 13, which is connected via supply lines 14, 15 fluidly connected to the spray arms 7, 8.
  • the arranged in a circulation line 9 circulating pump 13 is a heating element 12 downstream, such as a water heater, which is also referred to as water heater.
  • the sump 11 is also connected via connecting pieces with a, connected to the water supply network fresh water supply line 16.
  • a softening device 6 is connected upstream of a main valve 4 in the flow direction.
  • the sump 1 1 is also connected via a further connection piece with a drain line 17 in connection, in which a drain pump 18 is arranged for pumping out rinsing liquid from the washing compartment 1.
  • the rinsing container 1 further has on its side wall 20, which is on the right in FIG. 1, on the outside a tank or a so-called float storage 19, which is likewise thermally coupled in contact with the rinsing container 1.
  • a partial program step for example a final rinse
  • float storage 19 which is likewise thermally coupled in contact with the rinsing container 1.
  • Already softened rinsing liquid which is no longer required after the execution of a partial program step, for example a final rinse, can be temporarily stored in the float storage 19.
  • the cached rinsing liquid is used in the subsequent rinsing program or rinse cycle, for example in a pre-rinsing step.
  • the circulation line 9 forms, together with the supply lines 14, 15 and the washing compartment a closed hydraulic circuit in which the rinsing liquid circulates in partial program steps with liquid insert and acts on the spray arms 7, 8 the items to be washed.
  • Downstream of the arranged in the circulation line 9 heating element 12 branches off at a branch point 21, a connecting line 23, which leads to the fleet memory 19.
  • a water separator 25 is provided, which is shown here by way of example as an electromagnetically actuated three-way switching valve 25.
  • the three-way switching valve 25 connects in a first switching position shown, the circulation line 9 leading to the hopper 19 connecting line 23 and interrupts the above-mentioned hydraulic circuit.
  • the three-way switching valve 25 In contrast, in a second switching position, not shown, the three-way switching valve 25, the connection to the fleet memory 19 is interrupted, while the circulation line 9 is connected to the supply lines 14, 15. All device components, such as the water diverter 25, the circulation pump 13 or the softening device 6, can be controlled via a control device 29.
  • the softening device 6 has an ion exchange container 26 with ion exchange material as well as a regenerant container 27, which is preceded by a water switch 28. Depending on the switching position, this leads the fresh water either directly to the ion exchange container 26 or to the regeneration medium container 27.
  • the fresh water from the fresh water supply network is passed through the ion exchange container 26 the softening system, in which the fresh water is softened by the ion exchange material. Subsequently, the softened soft water is introduced via the supply line 16 into the washing container 1 and thus into the hydraulic circuit of the dishwasher.
  • the softening capacity of the softening device 6 is exhausted after a number of washing programs executed.
  • a predetermined amount of fresh water about 3-5 liters, is fed into the regenerant vessel 27.
  • the regenerant tank 27 contains a regenerant that dissolves in the water.
  • the resulting brine is directed into the ion exchange vessel 26 in which the ion exchange between the regenerating sole and the ion exchange material takes place.
  • the regenerant container 27 can be filled with regenerating agent via a closable opening.
  • the dishwasher can be operated with a washing program having a plurality of program steps, namely pre-rinsing, cleaning, intermediate rinsing, rinsing and drying.
  • the washing container 1 in particular when changing from one to the following program step with water from the water supply network or with the water stored in the fleet memory 19 can be filled.
  • the pre-wash V, water already stored in the liquor storage 19 can, for example, be returned to the rinse tank 1.
  • the fleet storage 19 already contains softened rinsing liquid, which is no longer needed after carrying out an intermediate or final rinse step in a previous rinse program.
  • the three-way switching valve 25 For filling the washing container 1 with the cached in the fleet memory 19 water, the three-way switching valve 25 is shown in FIG. 1 brought into the switching position shown and set the circulation pump 13 out of operation.
  • the cached water can then, for example under gravity, be performed in the washing 1. Its flow path therefore extends starting from the float storage 19 via the connecting line 23 and the circulation line 9 into the sump 11 of the Washing. A renewed action on the softening device 6 by means of the already softened, cached water is thus not carried out.
  • the water that is no longer needed is fed via the drain line 17 into the sewage network.
  • the subsequent cleaning step R water from the water supply network is softened via the softening device 6 and guided along the supply line 16 into the pumping pot 11 of the washing container 1.
  • the water is passed through the drain line 17 in the sewer network.
  • the intermediate rinsing step Z for which again fresh water is passed from the fresh water supply network through the softening device 6 in the washing compartment 1.
  • the circulation pump 13 is put into operation, while the three-way valve 25 remains in the switching position shown, whereby the water can be pumped into the fleet storage 19.
  • the drying step for drying the items to be washed takes place. The thus cached water is reused in the pre-rinse step of the subsequent rinse program.
  • a regeneration process of the softening device 6 can be carried out, for example, after three passes of a washing program or of variants of a washing program, which with regard to the process parameters, such as e.g. Duration or maximum temperature, the
  • Steps Pre-rinse V, Purge R, Intermediate rinse Z, Rinse rinse K and Dry T differ. This regeneration process can take place during the purification step R, so that in particular it is ensured that softened water is available during the rinsing K and a stain-free drying result is ensured.
  • a total amount of rinsing liquid of 10 liters may be required.
  • Total Spülillonkeitsmenge is made up of the flushed liquid stored in the fleet memory 19, which may be in the order of 2 liters and is already softened, and from a newly supplied from the water supply network amount of fresh water, which may be exemplary here at 8 liters together.
  • the number n from softening operations to the regeneration process in the controller 27 is set to four.

Landscapes

  • Washing And Drying Of Tableware (AREA)
  • Treatment Of Water By Ion Exchange (AREA)

Abstract

L'invention concerne un procédé pour faire fonctionner un lave-vaisselle, comprenant au moins les étapes suivantes: de l'eau provenant d'un réseau d'alimentation en eau est introduite dans le lave-vaisselle, l'eau est adoucie dans un dispositif adoucisseur d'eau (6) du lave-vaisselle, l'eau adoucie est envoyée sur la vaisselle à laver ou à sécher, l'eau adoucie envoyée sur la vaisselle à laver ou à sécher est accumulée au moins une fois dans un réservoir (19) et l'eau adoucie et accumulée dans le réservoir (19) est à nouveau envoyée sur la vaisselle à laver ou à sécher.
EP09795372A 2008-12-19 2009-12-04 Procédé pour faire fonctionner un lave-vaisselle Withdrawn EP2378942A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008055018A DE102008055018A1 (de) 2008-12-19 2008-12-19 Verfahren zum Betreiben einer Geschirrspülmaschine
PCT/EP2009/066444 WO2010079026A2 (fr) 2008-12-19 2009-12-04 Procédé pour faire fonctionner un lave-vaisselle

Publications (1)

Publication Number Publication Date
EP2378942A2 true EP2378942A2 (fr) 2011-10-26

Family

ID=42193941

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09795372A Withdrawn EP2378942A2 (fr) 2008-12-19 2009-12-04 Procédé pour faire fonctionner un lave-vaisselle

Country Status (5)

Country Link
EP (1) EP2378942A2 (fr)
CN (1) CN102256526A (fr)
DE (1) DE102008055018A1 (fr)
RU (1) RU2011127141A (fr)
WO (1) WO2010079026A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL2465405T3 (pl) * 2012-03-20 2018-02-28 V-Zug Ag Zmywarka do naczyń z pojemnikiem zasobnika ciepła
DE102013100859A1 (de) * 2013-01-29 2014-07-31 Miele & Cie. Kg Geschirrspülautomat sowie Verfahren zur Einleitung von Frischwasser in einen Geschirrspülautomaten
IT201700078567A1 (it) * 2017-07-13 2019-01-13 Candy Spa Metodo per valutare automaticamente lo spostamento di un oggetto all’interno di una zona di lavaggio di una macchina lavastoviglie.
US20230172421A1 (en) * 2021-12-03 2023-06-08 Whirlpool Corporation Dishwasher with liquid storage tank

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3840524A1 (de) * 1988-12-01 1990-06-07 Licentia Gmbh Verfahren und vorrichtung zur optimierung des programmablaufs bei geschirrspuel- und waschmaschinen mit enthaertungseinrichtungen, insbesondere fuer den haushalt
ITPN940011A1 (it) * 1994-02-25 1995-08-25 Zanussi Elettrodomestici Lavatrice con sistema di recupero dell'acqua
DE4446731C2 (de) * 1994-12-24 2003-01-09 Miele & Cie Haushaltgerät, insbesondere programmgesteuerte Geschirrspülmaschine mit einer Wasserenthärtungseinrichtung
IT1289370B1 (it) * 1996-04-10 1998-10-02 Electrolux Zanussi Elettrodome Macchina lavatrice con serbatoio d'acqua multifunzionale
DE19960307A1 (de) * 1999-12-14 2001-06-21 Bsh Bosch Siemens Hausgeraete Verfahren zum Betrieb einer programmgesteuerten Geschirrspülmaschine
DE10259736A1 (de) * 2002-12-19 2004-07-08 BSH Bosch und Siemens Hausgeräte GmbH Spülverfahren für eine Geschirrspülmaschine sowie Geschirrspülmaschine
DE102004019330A1 (de) 2003-12-22 2005-07-21 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine mit einem System zur Wasserenthärtung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2010079026A2 *

Also Published As

Publication number Publication date
CN102256526A (zh) 2011-11-23
DE102008055018A1 (de) 2010-06-24
WO2010079026A2 (fr) 2010-07-15
RU2011127141A (ru) 2013-01-27
WO2010079026A3 (fr) 2010-09-16

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