EP0517205A1 - Procédé pour l'adoucissement et appareil ménager, notamment machine à laver la vaisselle, pour la mise en oeuvre de ce procédé - Google Patents

Procédé pour l'adoucissement et appareil ménager, notamment machine à laver la vaisselle, pour la mise en oeuvre de ce procédé Download PDF

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Publication number
EP0517205A1
EP0517205A1 EP92109440A EP92109440A EP0517205A1 EP 0517205 A1 EP0517205 A1 EP 0517205A1 EP 92109440 A EP92109440 A EP 92109440A EP 92109440 A EP92109440 A EP 92109440A EP 0517205 A1 EP0517205 A1 EP 0517205A1
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EP
European Patent Office
Prior art keywords
water
regeneration
hardness
tank
brine
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
Application number
EP92109440A
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German (de)
English (en)
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EP0517205B1 (fr
Inventor
Harald Schrott
Michael Wisskirchen
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.)
Aweco Appliance Systems GmbH and Co KG
Original Assignee
Aweco Kunststofftechnik Geratebau & Co KG GmbH
AWECO Kunststofftechnik Geraetebau GmbH and Co 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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6433320&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0517205(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Aweco Kunststofftechnik Geratebau & Co KG GmbH, AWECO Kunststofftechnik Geraetebau GmbH and Co KG filed Critical Aweco Kunststofftechnik Geratebau & Co KG GmbH
Publication of EP0517205A1 publication Critical patent/EP0517205A1/fr
Application granted granted Critical
Publication of EP0517205B1 publication Critical patent/EP0517205B1/fr
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
    • 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
    • A47L2401/02—Consumable products information, e.g. information on detergent, rinsing aid or salt; Dispensing device information, e.g. information on the type, e.g. detachable, or status of the device
    • A47L2401/023—Quantity or concentration of the consumable product
    • 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
    • A47L2401/11—Water hardness, acidity or basicity
    • 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

Definitions

  • the invention relates to a method for water softening in a household machine, in particular a dishwasher, according to the preamble of claim 1.
  • the water softeners currently used in dishwashers include a exchanger tank filled with ion exchange mass, a brine tank, a regeneration tank constantly filled with water through suitable refilling measures, and a regeneration valve through which the content of the regeneration tank can be emptied as a result of a gradient into the brine tank, whereby brine flows into the exchanger tank and is rinsed out with a fresh washer after a certain time.
  • Typical of the working process for such a softener is, on the one hand, the way in which the regeneration water is measured and introduced, and, on the other hand, the fact that the Regeneration process is carried out after each program run, regardless of whether more or less soft water was consumed in the program run concerned. With a lower consumption, as is currently sought in so-called water-saving programs, the capacity of the ion exchange mass is not fully utilized, so more salt is used in the next regeneration process than would be necessary.
  • each regeneration cycle comprises a final rinsing process, in which the brine in the exchanger tank is rinsed into the tub with, for example, 2 or 3 l of water and pumped out.
  • the brine in the exchanger tank is rinsed into the tub with, for example, 2 or 3 l of water and pumped out. The more often one regenerates, the greater the rinse water consumption.
  • the invention is based on the object of proposing a method which allows the salt consumption and the water consumption for regeneration to be reduced sustainably with a relatively simple softening device.
  • the device is considerably simplified in comparison to conventional household machines in that the regeneration volume is unchangeable, that is to say the container has only one always filled chamber and the known changeover valve is omitted.
  • the detection of the water consumption quantities can be done by adding electrical calculation quantities, which correspond to the water consumption quantities assigned to the individual programs, by multiplying them with the water hardness to be reduced and be compared with a predetermined capacity value, expressed by liter x ° dH, and that the regeneration is carried out after the end of the program or program section running when the tie has been reached. It is therefore also conceivable to define the desired loading state of the exchanger mass so precisely that regeneration takes place between two program sections during a washing program.
  • the above-mentioned arithmetic operations can be carried out electronically, which is particularly useful in modern machines with a high proportion of electronics because, with a structural simplification, more manufacturing costs can generally be saved than must be spent by the electronic effort.
  • the amount of water is traditionally determined by level switches, pressure sockets or the like.
  • a signal transmitter is proposed, on which the raw water hardness is set once, for example according to the information from the waterworks concerned, when the machine is installed.
  • the raw water hardness is set once, for example according to the information from the waterworks concerned, when the machine is installed.
  • Optimizing the water softener also includes a certain residual hardness that the soft water may still have. This fixed one Residual hardness value is subtracted from the signal generator or a subordinate computing device from the set or measured raw hardness value and the difference is used as a multiplier for the added amount of water.
  • This water softener comprises an exchanger tank 1 with a liter content and a brine tank 2 filled with saturated brine.
  • the arrangement is connected to a water supply network 3 and has a machine-own, magnetically controlled inlet valve 4 in the vicinity of the connection point and then an impeller counter 5 and one Free air gap 6.
  • a line 7 leads from the receiving nozzle of the free air gap to the exchanger tank 1.
  • Below the free air gap 6 there is a regeneration tank 9 which is filled with the peeling water of the free air gap 6. It contains about 0.5 l of water and has an overflow threshold 10. The overflow water also flows through a line 11 into the machine tub, not shown.
  • the regeneration tank 9 is connected to the brine tank 2 via an outlet line 12 which contains a magnetically controlled regeneration valve 13.
  • a brine line 14 leads into the exchanger tank 1 from its opposite side.
  • the amount of water measured by the impeller 5 and the raw water hardness set on an actuator 15 are supplied as electrical signals to an electronic computing unit 16.
  • the specified residual hardness is subtracted from the raw water hardness and the difference is multiplied by the amount of water.
  • the result is a value to be expressed in liters x ° dH, that with the container dimensions and the one used Ion exchange mass specified capacity value is compared.
  • a regeneration signal 17 is given which triggers a regeneration process after the relevant program section or program has run.
  • the regeneration process includes that the regeneration valve 13 is opened when the inlet valve 4 is closed.
  • the content of the regeneration tank 9 flows through the open valve into the brine tank 2 and pushes a corresponding amount of brine through the line 14, in which a check valve (not shown) is installed, into the exchanger tank 1.
  • the overflowing water from the exchanger tank flows through the line 8 in the vat.
  • the regeneration valve 13 is closed again.
  • the used brine is rinsed out of the exchanger tank 1 by opening the inlet valve 4. About 2 liters of fresh water are required for this.
  • the impeller counter also measures this and controls the closing time of the inlet valve 4.

Landscapes

  • Treatment Of Water By Ion Exchange (AREA)
EP19920109440 1991-06-06 1992-06-04 Procédé pour l'adoucissement et appareil ménager, notamment machine à laver la vaisselle, pour la mise en oeuvre de ce procédé Expired - Lifetime EP0517205B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4118586 1991-06-06
DE19914118586 DE4118586C2 (de) 1991-06-06 1991-06-06 Verfahren zur Wasserenthärtung und Haushaltsmaschine, insbesondere Geschirrspüler, zur Durchführung dieses Verfahrens

Publications (2)

Publication Number Publication Date
EP0517205A1 true EP0517205A1 (fr) 1992-12-09
EP0517205B1 EP0517205B1 (fr) 1995-08-30

Family

ID=6433320

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920109440 Expired - Lifetime EP0517205B1 (fr) 1991-06-06 1992-06-04 Procédé pour l'adoucissement et appareil ménager, notamment machine à laver la vaisselle, pour la mise en oeuvre de ce procédé

Country Status (2)

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EP (1) EP0517205B1 (fr)
DE (1) DE4118586C2 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0741990A2 (fr) * 1995-05-09 1996-11-13 Merloni Elettrodomestici S.p.A. Dispositif pour signaler la concentration en sel utilisé pour la régénération des résines dans une machine à laver
DE19601072A1 (de) * 1996-01-13 1997-07-17 Aweco Kunststofftech Geraete Wasserzulaufgefäß
EP0966914A2 (fr) * 1998-06-10 1999-12-29 BSH Bosch und Siemens Hausgeräte GmbH Procédé et appareil ménager pour l'adoucissement de l'eau
EP1027859A2 (fr) * 1999-02-12 2000-08-16 BSH Bosch und Siemens Hausgeräte GmbH Appareil menager vehiculant de l'eau, notamment lave-vaiselle ou machine à laver
DE10027844A1 (de) * 1999-12-18 2001-06-28 Aweco Appliance Sys Gmbh & Co Haushaltsmaschine
AU2003222524B2 (en) * 2002-04-10 2007-11-01 Fisher & Paykel Appliances Limited Washing appliance water softener
EP1785084A3 (fr) * 2005-11-15 2009-07-08 T & P - S.p.A. Dispositif et procédé pour réduire la dureté de l'eau dans une machine à laver, en particulier dans une machine à laver la vaisselle.
EP2209409A1 (fr) 2007-10-31 2010-07-28 BSH Bosch und Siemens Hausgeräte GmbH Procédé pour faire fonctionner un appareil électroménager à circulation d'eau
ITTO20130338A1 (it) * 2013-04-24 2014-10-25 Bitron Spa Sistema di alimentazione e trattamento di acqua per una macchina lavatrice, in particolare una macchina lavastoviglie
ITTO20130339A1 (it) * 2013-04-24 2014-10-25 Bitron Spa Sistema di alimentazione e trattamento di acqua per una macchina lavastoviglie
US9420937B2 (en) 2009-12-17 2016-08-23 Whirlpool Corporation Dishwasher with dynamically controlled cycle of operation
EP3228741A1 (fr) * 2016-04-04 2017-10-11 Electrolux Appliances Aktiebolag Machine de traitement de linge et son procédé de commande

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4303628C2 (de) * 1993-02-09 2002-01-10 Miele & Cie Verfahren zum Regenerieren des Enthärters einer programmgesteuerten Geschirrspülmaschine
DE4401411A1 (de) * 1994-01-19 1995-07-20 Licentia Gmbh Verfahren zum Betreiben einer Geschirrspül- oder Waschmaschine
DE4446731C2 (de) * 1994-12-24 2003-01-09 Miele & Cie Haushaltgerät, insbesondere programmgesteuerte Geschirrspülmaschine mit einer Wasserenthärtungseinrichtung
DE19512011C2 (de) * 1995-03-31 2000-07-27 Aweco Appliance Sys Gmbh & Co Verfahren zur Bereitung von Weichwasser bei Geschirrspül- oder Waschmaschinen
FR2758742B1 (fr) * 1997-01-28 1999-04-23 Esswein Sa Adoucisseur a encombrement reduit pour machine electro-domestique
ES2268568T3 (es) † 2002-05-16 2007-03-16 Electrolux Home Products Corporation N.V. Lavavajillas y procedimiento para el funcionamiento de un lavavajillas utilizando un preparado combinado con varias substancias activas.
DE102004021200A1 (de) * 2004-04-29 2005-11-24 Aweco Appliance Systems Gmbh & Co. Kg Vorrichtung zur Wasseraufbereitung in Haushaltsmaschinen

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1803106A1 (de) * 1968-10-15 1970-04-16 Bosch Hausgeraete Gmbh Geschirrspuelmaschine
FR1594368A (fr) * 1968-02-15 1970-06-01
DE1628734A1 (de) * 1966-07-20 1970-12-03 Neff Werke Zaehlwerk mit Anzeige fuer den Regenerationszeitpunkt des Spuelwassers fuer Geschirrspuel- und Waschmaschinen
GB2028160A (en) * 1978-08-05 1980-03-05 Bosch Siemens Hausgeraete Water softening apparatus
DE2947410A1 (de) * 1979-11-24 1981-06-19 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Enthaertungseinrichtung, insbesondere fuer geschirrspuelmaschinen
DE3527046A1 (de) * 1985-07-27 1987-02-05 Licentia Gmbh Programmgesteuerte wasch- oder geschirrspuelmaschine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1692960A1 (de) * 1968-03-06 1970-01-02 Holzer & Co Kg W Vorrichtung zur Steuerung von Wasserenthaertern
DE2501269C3 (de) * 1975-01-15 1984-10-04 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Geschirrspülmaschine
FR2519964A1 (fr) * 1982-01-15 1983-07-22 Permo Sa Appareil pour le traitement de liquides par resine echangeuse d'ions, plus particulierement appareil adoucisseur domestique d'eau
DE3209501C2 (de) * 1982-03-16 1984-01-05 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Enthärtungseinrichtung für Haushaltgeräte, insbesondere für Geschirrspülmaschinen
DE3209500C2 (de) * 1982-03-16 1983-12-29 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Enthärtungseinrichtung für Haushaltgeräte, insbesondere für Geschirrspülmaschinen
DE3209563C2 (de) * 1982-03-16 1984-04-26 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Enthärtungseinrichtung für Haushaltgeräte, insbesondere für Geschirrspülmaschinen
SU1620102A1 (ru) * 1989-02-03 1991-01-15 Э.М. Константинов Ум гчитель воды дл посудомоечной машины
DE3925054A1 (de) * 1989-07-28 1991-01-31 Licentia Gmbh Geschirrspuel- oder waschmaschine mit einem vorratsbehaelter

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1628734A1 (de) * 1966-07-20 1970-12-03 Neff Werke Zaehlwerk mit Anzeige fuer den Regenerationszeitpunkt des Spuelwassers fuer Geschirrspuel- und Waschmaschinen
FR1594368A (fr) * 1968-02-15 1970-06-01
DE1803106A1 (de) * 1968-10-15 1970-04-16 Bosch Hausgeraete Gmbh Geschirrspuelmaschine
GB2028160A (en) * 1978-08-05 1980-03-05 Bosch Siemens Hausgeraete Water softening apparatus
DE2947410A1 (de) * 1979-11-24 1981-06-19 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Enthaertungseinrichtung, insbesondere fuer geschirrspuelmaschinen
DE3527046A1 (de) * 1985-07-27 1987-02-05 Licentia Gmbh Programmgesteuerte wasch- oder geschirrspuelmaschine

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0741990A3 (fr) * 1995-05-09 1997-01-08 Merloni Elettrodomestici Spa Dispositif pour signaler la concentration en sel utilisé pour la régénération des résines dans une machine à laver
EP0741990A2 (fr) * 1995-05-09 1996-11-13 Merloni Elettrodomestici S.p.A. Dispositif pour signaler la concentration en sel utilisé pour la régénération des résines dans une machine à laver
DE19601072A1 (de) * 1996-01-13 1997-07-17 Aweco Kunststofftech Geraete Wasserzulaufgefäß
DE19601072C2 (de) * 1996-01-13 2000-06-08 Aweco Appliance Sys Gmbh & Co Wasserzulaufgefäß
EP0966914A2 (fr) * 1998-06-10 1999-12-29 BSH Bosch und Siemens Hausgeräte GmbH Procédé et appareil ménager pour l'adoucissement de l'eau
EP0966914A3 (fr) * 1998-06-10 2000-04-05 BSH Bosch und Siemens Hausgeräte GmbH Procédé et appareil ménager pour l'adoucissement de l'eau
EP1027859A2 (fr) * 1999-02-12 2000-08-16 BSH Bosch und Siemens Hausgeräte GmbH Appareil menager vehiculant de l'eau, notamment lave-vaiselle ou machine à laver
EP1027859A3 (fr) * 1999-02-12 2001-07-11 BSH Bosch und Siemens Hausgeräte GmbH Appareil menager vehiculant de l'eau, notamment lave-vaiselle ou machine à laver
DE10027844A1 (de) * 1999-12-18 2001-06-28 Aweco Appliance Sys Gmbh & Co Haushaltsmaschine
US7988790B2 (en) 2002-04-10 2011-08-02 Fisher & Paykel Appliances Limited Washing appliance water softener
AU2003222524B2 (en) * 2002-04-10 2007-11-01 Fisher & Paykel Appliances Limited Washing appliance water softener
EP1785084A3 (fr) * 2005-11-15 2009-07-08 T & P - S.p.A. Dispositif et procédé pour réduire la dureté de l'eau dans une machine à laver, en particulier dans une machine à laver la vaisselle.
EP2209409A1 (fr) 2007-10-31 2010-07-28 BSH Bosch und Siemens Hausgeräte GmbH Procédé pour faire fonctionner un appareil électroménager à circulation d'eau
US9420937B2 (en) 2009-12-17 2016-08-23 Whirlpool Corporation Dishwasher with dynamically controlled cycle of operation
ITTO20130338A1 (it) * 2013-04-24 2014-10-25 Bitron Spa Sistema di alimentazione e trattamento di acqua per una macchina lavatrice, in particolare una macchina lavastoviglie
ITTO20130339A1 (it) * 2013-04-24 2014-10-25 Bitron Spa Sistema di alimentazione e trattamento di acqua per una macchina lavastoviglie
WO2014174451A1 (fr) * 2013-04-24 2014-10-30 Bitron S.P.A. Système d'amenée et de traitement d'eau pour une machine à laver, en particulier un lave-vaisselle
WO2014174452A1 (fr) 2013-04-24 2014-10-30 Bitron S.P.A. Système d'alimentation et de traitement de l'eau pour un lave-vaisselle
CN105338873A (zh) * 2013-04-24 2016-02-17 毕勤股份有限公司 用于洗涤机、特别是洗碗机的用于供应和处理的水的系统
EP3228741A1 (fr) * 2016-04-04 2017-10-11 Electrolux Appliances Aktiebolag Machine de traitement de linge et son procédé de commande
WO2017174265A1 (fr) * 2016-04-04 2017-10-12 Electrolux Appliances Aktiebolag Machine de traitement du linge et procédé de commande associé
CN108699752A (zh) * 2016-04-04 2018-10-23 伊莱克斯家用电器股份公司 衣物处理机及其控制方法
CN108699752B (zh) * 2016-04-04 2021-08-24 伊莱克斯家用电器股份公司 衣物处理机及其控制方法

Also Published As

Publication number Publication date
DE4118586A1 (de) 1992-12-10
EP0517205B1 (fr) 1995-08-30
DE4118586C2 (de) 2003-02-20

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