EP1110498B1 - Method of operating a program controlled dish washing machine - Google Patents

Method of operating a program controlled dish washing machine Download PDF

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Publication number
EP1110498B1
EP1110498B1 EP00124471A EP00124471A EP1110498B1 EP 1110498 B1 EP1110498 B1 EP 1110498B1 EP 00124471 A EP00124471 A EP 00124471A EP 00124471 A EP00124471 A EP 00124471A EP 1110498 B1 EP1110498 B1 EP 1110498B1
Authority
EP
European Patent Office
Prior art keywords
program
ion exchanger
rinsing
washing
washing machine
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.)
Expired - Lifetime
Application number
EP00124471A
Other languages
German (de)
French (fr)
Other versions
EP1110498A1 (en
Inventor
Michael Rosenbauer
Bruno Reiter
Reinhard Hering
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
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Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP1110498A1 publication Critical patent/EP1110498A1/en
Application granted granted Critical
Publication of EP1110498B1 publication Critical patent/EP1110498B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A47L15/42—Details
    • A47L15/4229—Water softening arrangements

Definitions

  • the invention relates to a method for operating a program-controlled dishwasher, with a softening device, consisting of an ion exchanger, a Salt storage container and a regeneration water storage container, the dishwasher with from the sub-programs - pre-rinsing, cleaning, intermediate rinsing, rinsing, Drying, adding an amount of brine to regenerate the ion exchange and rinsing the exchanged hardness formers from the regenerated ion exchanger - selectable Rinse programs can be operated, and in the sub-program cleaning the sub-program addition a brine quantity for regenerating the ion exchanger is displayed.
  • a method of the type mentioned is known from DE-OS 39 21 422. Usually takes place on the sub-program adding a brine quantity to regenerate the ion exchanger adding an amount of backwash water to rinse out the replaced ones Hardener from the regenerated ion exchanger. In the aforementioned process the sub-program adding a quantity of backwash water to rinse out the replaced ones Hardener from the regenerated ion exchanger following the sub-program Clean and then the intermediate rinse program follows.
  • the procedure is, as usual, the addition of a quantity of backwash water in the sub-program for rinsing out the exchanged hardness formers from the regenerated ion exchanger added amount of backwash water to avoid extending the program run time and limit unnecessary water consumption to a small amount of water, which only rinses out most of the hardness formers from the ion exchanger.
  • This So-called backwashing of the regenerated ion exchanger is then carried out at the aforementioned Procedure in the subsequent sub-program intermediate rinsing, since it is a sub-program without the addition of detergent to dilute the detergent by rinsing it out Avoid brine components continued.
  • the added Backwashing water amount usually to the addition of the largest amount of brine to Regenerate the ion exchanger and thus constantly on the largest amount of the hardness pattern to be rinsed out of the regenerated ion exchanger results in overall for rinsing the exchanged hardness from the regenerated
  • the amount of backwash water added to the ion exchanger is approximately 4.2 liters of water, independently how big is the amount of hardening agent really to be rinsed out. this means in most cases unnecessary water consumption.
  • the insertion of the sub-program Add a quantity of backwash water to rinse out the exchanged hardness agents from the regenerated ion exchanger between the sub-program cleaning and the Sub-program intermediate rinsing also means an extension of the program execution time.
  • the invention is therefore based on the object in a method of the aforementioned Kind in a simple way a further shortening of the program duration and a to achieve further water savings.
  • This object is achieved in that the rinsing of the exchanged Hardener from the regenerated ion exchanger only during the intermediate rinse program takes place in which the amount of liquid used the running washing program is adjusted.
  • the duration of the rinse program by the duration of the partial program saved adding a backwashing water quantity for rinsing out the exchanged hardness formers from the regenerated ion exchanger shortened.

Abstract

The dish washing machine operating method has a dosed quantity of salt fed to the ion exchanger used by the water softener, for regeneration of the ion exchanger during the dish washing machine operating cycle, with rinsing out of the ion exchanger for removing the hard water deposits during the intermediate rinsing part of the operating cycle, using a liquid quantity which is matched to the rinsing programme.

Description

Die Erfindung betrifft ein Verfahren zum Betrieb einer programmgesteuerten Geschirrspülmaschine, mit einer Enthärtungseinrichtung, bestehend aus einem lonenaustauscher, einem Salzvorratsbehälter und einem Regenerierwasser-Vorratsbehälter, wobei die Geschirrspülmaschine mit aus den Teilprogrammen - Vorspülen, Reinigen, Zwischenspülen, Klarspülen, Trocknen, Zugabe einer Solemenge zum Regenerieren des lonenaustauschen und Ausspülen der ausgetauschten Härtebildner aus dem regenerierten lonenaustauscher - wählbaren Spülprogrammen betätigbar ist, und wobei im Teilprogramm Reinigen das Teilprogramm Zugabe einer Solemenge zum Regenerieren des lonenaustauschers eingeblendet wird.The invention relates to a method for operating a program-controlled dishwasher, with a softening device, consisting of an ion exchanger, a Salt storage container and a regeneration water storage container, the dishwasher with from the sub-programs - pre-rinsing, cleaning, intermediate rinsing, rinsing, Drying, adding an amount of brine to regenerate the ion exchange and rinsing the exchanged hardness formers from the regenerated ion exchanger - selectable Rinse programs can be operated, and in the sub-program cleaning the sub-program addition a brine quantity for regenerating the ion exchanger is displayed.

Ein Verfahren der eingangs genannten Art ist aus der DE-OS 39 21 422 bekannt. Üblicherweise erfolgt auf das Teilprogramm Zugabe einer Solemenge zum Regenerieren des lonenaustauschers eine Zugabe einer Rückspülwassermenge zum Ausspülen der ausgetauschten Härtebildner aus dem regenerierten lonenaustauscher. Bei dem vorgenannten Verfahren erfolgt das Teilprogramm Zugabe einer Rückspülwassermenge zum Ausspülen der ausgetauschten Härtebildner aus dem regenerierten lonenaustauscher im Anschluß an das Teilprogramm Reinigen und darauf folgt das Teilprogramm Zwischenspülen. Bei dem vorgenannten Verfahren ist, wie üblich, die im Teilprogramm Zugabe einer Rückspülwassermenge zum Ausspülen der ausgetauschten Härtebildner aus dem regenerierten lonenaustauscher zugegebene Rückspülwassermenge zur Vermeidung einer Verlängerung der Programmablaufzeit und unnötigen Wasserverbrauchs auf eine geringe Wassermenge begrenzt, die nur den größten Teil der Härtebildner aus dem lonenaustauscher ausspült. Dieses sogenannte Rückspülen des regenerierten lonenaustauschers wird dann bei dem vorgenannten Verfahren in dem nachfolgenden Teilprogramm Zwischenspülen, da es ein Teilprogramm ohne Reinigerzugabe ist, um eine Verdünnung des Reinigers durch evtl. ausgespülte Solebestandteile zu vermeiden, fortgesetzt. Da bei bekannten Verfahren die zugegebene Rückspülwassermenge üblicherweise auf die Zugabe der größten Solemenge zum Regenerieren des lonenaustauschers und damit konstant auf die größte Menge von aus dem regenerierten lonentauscher auszuspülenden Härtebildnem eingestellt ist, ergibt die damit insgesamt zum Ausspülen der ausgetauschten Härtebildner aus dem regenerierten lonenaustauscher zugegebene Rückspülwassermenge ungefähr 4,2 Liter Wasser, unabhängig davon, wie groß die Menge der auszuspülenden Härtebildner wirklich ist. Dies bedeutet in den meisten Fällen einen unnötigen Wasserverbrauch. Die Einfügung des Teilprogrammes Zugabe einer Rückspülwassermenge zum Ausspülen der ausgetauschten Härtebildner aus dem regenerierten lonenaustauscher zwischen das Teilprogramm Reinigen und das Teilprogramm Zwischenspülen bedeutet weiterhin eine Verlängerung der Programmablaufzeit.A method of the type mentioned is known from DE-OS 39 21 422. Usually takes place on the sub-program adding a brine quantity to regenerate the ion exchanger adding an amount of backwash water to rinse out the replaced ones Hardener from the regenerated ion exchanger. In the aforementioned process the sub-program adding a quantity of backwash water to rinse out the replaced ones Hardener from the regenerated ion exchanger following the sub-program Clean and then the intermediate rinse program follows. With the aforementioned The procedure is, as usual, the addition of a quantity of backwash water in the sub-program for rinsing out the exchanged hardness formers from the regenerated ion exchanger added amount of backwash water to avoid extending the program run time and limit unnecessary water consumption to a small amount of water, which only rinses out most of the hardness formers from the ion exchanger. This So-called backwashing of the regenerated ion exchanger is then carried out at the aforementioned Procedure in the subsequent sub-program intermediate rinsing, since it is a sub-program without the addition of detergent to dilute the detergent by rinsing it out Avoid brine components continued. Since in known methods the added Backwashing water amount usually to the addition of the largest amount of brine to Regenerate the ion exchanger and thus constantly on the largest amount of the hardness pattern to be rinsed out of the regenerated ion exchanger results in overall for rinsing the exchanged hardness from the regenerated The amount of backwash water added to the ion exchanger is approximately 4.2 liters of water, independently how big is the amount of hardening agent really to be rinsed out. this means in most cases unnecessary water consumption. The insertion of the sub-program Add a quantity of backwash water to rinse out the exchanged hardness agents from the regenerated ion exchanger between the sub-program cleaning and the Sub-program intermediate rinsing also means an extension of the program execution time.

Ein weiteres Verfahren mit einer Enhärtungseinrichtung ist aus EP 0 873 714 A bekannt.Another method with a softening device is known from EP 0 873 714 A.

Der Erfindung liegt daher die Aufgabe zugrunde, bei einem Verfahren der eingangs genannten Art auf einfache Art und Weise eine weitere Verkürzung der Programmlaufzeit und eine weitere Einsparung an Wasser zu erreichen.The invention is therefore based on the object in a method of the aforementioned Kind in a simple way a further shortening of the program duration and a to achieve further water savings.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß das Ausspülen der ausgetauschten Härtebildner aus dem regenerierten lonenaustauscher ausschließlich während dem Teilprogramm Zwischenspülen erfolgt, in dem die eingesetzte Flüssigkeitsmenge dem ablaufenden Spülprogramm angepaßt ist.This object is achieved in that the rinsing of the exchanged Hardener from the regenerated ion exchanger only during the intermediate rinse program takes place in which the amount of liquid used the running washing program is adjusted.

Dadurch, daß ausschließlich die in dem Teilprogramm Zwischenspülen eingesetzte Flüssigkeitsmenge zum Ausspülen der ausgetauschten Härtebildner aus dem regenerierten lonenaustauscher verwendet wird und diese Flüssigkeitsmenge dem jeweiligen ablaufenden Spülprogramm angepaßt ist, wird eine beträchtliche Einsparung an Wasser erzielt. Beispielsweise stellt sich bei einem Starkprogramm mit zwei Zwischenspülgängen eine Durchspülmenge von nur etwa 1,5 Liter Flüssigkeit und bei einem Normalprogramm mit einem Zwischenspülgang eine Durchspülmenge von nur etwa 2.5 Liter Flüssigkeit ein. Dadurch, daß das Ausspülen der ausgetauschten Härtebildner aus dem regenerierten lonenaustauscher ausschließlich in dem Teilprogramm Zwischenspülen erfolgt, wird die Dauer des Spülprogrammes um die Dauer des eingesparten Teilprogrammes Zugabe einer Rückspülwassermenge zum Ausspülen der ausgetauschten Härtebildner aus dem regenerierten lonenaustauscher verkürzt.Because only the amount of liquid used in the intermediate rinse program for rinsing out the exchanged hardness formers from the regenerated ion exchanger is used and this amount of liquid the respective running washing program is adapted, a considerable saving in water is achieved. For example there is a flushing quantity in a high-performance program with two intermediate rinsing cycles of only about 1.5 liters of liquid and with a normal program with an intermediate rinse a flushing volume of only about 2.5 liters of liquid. By rinsing the exchanged hardness formers from the regenerated ion exchanger only in the intermediate rinse program, the duration of the rinse program by the duration of the partial program saved adding a backwashing water quantity for rinsing out the exchanged hardness formers from the regenerated ion exchanger shortened.

Mit der Erfindung ist bei einem Verfahren der eingangs genannten Art auf einfache Art und Weise eine weitere Verkürzung der Programmlaufzeit und eine weitere Einsparung an Wasser erreicht.With the invention is in a method of the type mentioned in a simple manner Way, a further shortening of the program duration and a further saving in water reached.

Claims (1)

  1. Method of operating a program-controlled dishwashing machine with a softening device, consisting of an ion exchanger, a salt storage container and a regenerating water storage container, wherein the dishwashing machine is actuable with washing programs selectable from the part programs of prewashing, cleaning, intermediate washing, rinsing, drying, addition of a brine quantity for regenerating the ion exchanger and washing out the exchanged hardness former from the regenerated ion exchanger, and wherein the part program of addition of a brine quantity for regenerating the ion exchanger is incorporated into the program part of cleaning, characterised in that the washing out of the exchanged hardness former from the regenerated ion exchanger takes place exclusively during the part program of intermediate washing, in which the quantity of liquid employed is matched to the elapsing washing program.
EP00124471A 1999-12-14 2000-11-08 Method of operating a program controlled dish washing machine Expired - Lifetime EP1110498B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19960307A DE19960307A1 (en) 1999-12-14 1999-12-14 Method for operating a program-controlled dishwasher
DE19960307 1999-12-14

Publications (2)

Publication Number Publication Date
EP1110498A1 EP1110498A1 (en) 2001-06-27
EP1110498B1 true EP1110498B1 (en) 2004-06-23

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EP00124471A Expired - Lifetime EP1110498B1 (en) 1999-12-14 2000-11-08 Method of operating a program controlled dish washing machine

Country Status (5)

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EP (1) EP1110498B1 (en)
AT (1) ATE269660T1 (en)
DE (2) DE19960307A1 (en)
ES (1) ES2223369T3 (en)
TR (1) TR200402430T4 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ518288A (en) * 2002-04-10 2004-09-24 Fisher & Paykel Appliances Ltd Washing appliance water softner
DE10259736A1 (en) * 2002-12-19 2004-07-08 BSH Bosch und Siemens Hausgeräte GmbH Rinsing process for a dishwasher and dishwasher
DE102008055018A1 (en) * 2008-12-19 2010-06-24 BSH Bosch und Siemens Hausgeräte GmbH Method for operating a dishwasher

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3921422A1 (en) * 1989-06-29 1991-01-10 Bosch Siemens Hausgeraete METHOD FOR OPERATING A PROGRAM-CONTROLLED DISHWASHER
DE4303628C2 (en) * 1993-02-09 2002-01-10 Miele & Cie Method for regenerating the softener of a program-controlled dishwasher
IT1294124B1 (en) * 1997-04-23 1999-03-22 Electrolux Zanussi Elettrodome AUTOMATIC WASHING MACHINE WITH WATER SOFTENER REGENERATION SYSTEM

Also Published As

Publication number Publication date
DE19960307A1 (en) 2001-06-21
EP1110498A1 (en) 2001-06-27
DE50006882D1 (en) 2004-07-29
ES2223369T3 (en) 2005-03-01
TR200402430T4 (en) 2004-12-21
ATE269660T1 (en) 2004-07-15

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