DE3141792A1 - Process for the water-saving cooling of a washing liquor - Google Patents

Process for the water-saving cooling of a washing liquor

Info

Publication number
DE3141792A1
DE3141792A1 DE19813141792 DE3141792A DE3141792A1 DE 3141792 A1 DE3141792 A1 DE 3141792A1 DE 19813141792 DE19813141792 DE 19813141792 DE 3141792 A DE3141792 A DE 3141792A DE 3141792 A1 DE3141792 A1 DE 3141792A1
Authority
DE
Germany
Prior art keywords
level
washing
reached
liquor
water
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Withdrawn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
DE19813141792
Other languages
German (de)
Inventor
Richard Dipl.-Ing. Graf
Dietrich Dipl.-Ing. Koos
Thomas Dipl.-Inform. 1000 Berlin Stehr
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
Bosch Siemens Hausgerate 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 Bosch Siemens Hausgerate GmbH filed Critical Bosch Siemens Hausgerate GmbH
Priority to DE19813141792 priority Critical patent/DE3141792A1/en
Publication of DE3141792A1 publication Critical patent/DE3141792A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F35/00Washing machines, apparatus, or methods not otherwise provided for
    • D06F35/005Methods for washing, rinsing or spin-drying
    • D06F35/006Methods for washing, rinsing or spin-drying for washing or rinsing only
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

The washing liquor which, at the end of the washing programme, is contained in the tub of an automatically controlled drum-type washing machine having a level control at an upper and a lower level has to be cooled gradually, because too rapid a cooling of the washing liquor would precipitate the phosphates contained in it. In the known oscillating rinsing, the procedure is that, when an upper level is reached, the water supply is switched off and the liquor discharge switched on. After a lower level is reached, these operations are reversed again. The liquor cooling and dilution is therefore incomplete and necessitates too high an outlay of water in order to achieve the desired purpose. This disadvantage is to be avoided. According to the solution, when the upper level of the washing liquor diluted by cold water which has flowed in is reached, the washing drum is moved for 5 to 30 seconds, and thereafter the washing liquor is discharged as far as the lower level and then supplied again until the upper level is reached.

Description

Verfahren zum wassersparenden Abkühlen einer WaschlaugeProcess for the water-saving cooling of a washing liquor

Die Erfindung geht aus von einem Verfahren zum Abkunlen einer Waschlauge durch Kaltwasserzufuhr am Anfang eines Spülprogramms in einer automatisch gesteuerten Trommelwaschmaschine mit einer Niveausteuerung bei einem oberen und einem unteren Niveau.The invention is based on a method for cooling down a washing liquor by supplying cold water at the beginning of a washing program in an automatically controlled one Drum washing machine with level control at an upper and a lower one Level.

Ein derartiges Vorfahren ist aus der DE-AS ii 52 679 bekannt, in der eiy Wechselspülprogramm mit hohem Niveauunterschied beschrieben ist. Darin wird im Anschluß an den Waschprozess der heißen Lauge zunächst kaltes Frischwasser zugeführt. Hierbei steigt der Laugenstahd bis weit Ueber das bei normalem Waschen übliche Niveau. Beim Erreichen eines bestimmten Laugenhöchststandes erfolgt dann automatisch die Abschaltung der Wasserzufuhr und das Abführen der Schmutzlauge bis auf ein sehr niedriges Niveau.Such an ancestor is known from DE-AS ii 52 679 in which An alternating wash program with a high level difference is described. In it will After the washing process, cold fresh water is first added to the hot lye. Here, the lye rises far above the level that is usual for normal washing. When a certain maximum lye is reached, the Shutdown of the water supply and the removal of the dirty liquor except for a very low level.

Die sich weiterbewegende Trommel hat dann nur kurzfristig Gelegenheit, die Lauge zu durchmischen, und in den vielen Falten bleibt noch ein erheblicher Teil von unverdünnter, heißer Lauge eingeschlossen.The moving drum then only has a short-term opportunity to to mix the lye, and in the many Wrinkles still remain a significant part of undiluted, hot lye included.

Der Erfindung liegt die Aufgabe zugrunde die Laugenabkühlung und -verdUnnung schon beim ernsten Zuführen von Kaltwasser so zu optimieren, daß infolge von höchstens drei wechselweise ablaufenden Zu- un; Abf lußvorgängen eine erhebliche Wassermenge gespart Werden kann.The object of the invention is to cool and dilute the lye to optimize even with the serious supply of cold water so that as a result of at most three alternately running inlets; Drainage processes a considerable amount of water Can be saved.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß beide Niveaus wesentlich über dem beim Waschprozess üblichen Niveau liegen und beim Erreichen des oberen Niveaus der durch zugeflossenes Kaltwasser verdünnten Waschlauge die Wäsche trommel für 5 bis 30 Sekunden bewegt, danach die Waschlauge bis zum unteren Niveau abgeführt und dann bis zum Erreichen des oberen Niveaus wieder Kaltwasser zugeführt wird.According to the invention this object is achieved in that both levels are significantly above the level customary in the washing process and when it is reached of the upper level of the washing liquor diluted by the inflow of cold water The washing drum is moved for 5 to 30 seconds, then the detergent solution down to the lower level Level discharged and then cold water again until the upper level is reached is fed.

Hierdurch kann in vorteilhafter Weise gegenüber dem Stand der Technik schon während des ersten Spülganges ein intensiver Temperatur- und Konzentrationsausgleich in der Waschlauge stattfinden. Beim nachfolgenden vollständigen AbfUhren der durchmischten Lauge wird daher ein höher Prozentsatz der in der Waschlauge enthaltenen Verunreinigungen abgeführt.This can be advantageous compared to the prior art An intensive temperature and concentration equalization even during the first rinse take place in the detergent solution. During the subsequent complete removal of the mixed Lye will therefore have a higher percentage of the impurities contained in the wash liquor discharged.

In einer vorteilhaften Ausbildung des erfindungsgemXßeS Verfahrens werden die angegebenen Verfahrens schritte ein bis zweimal wiederholt.In an advantageous embodiment of the method according to the invention the specified process steps are repeated once or twice.

Es hat sich nämlich gezeigt, daß diese geringe Anzahl von Pendel-Spülvorgängen im ersten Spülgang bereits ausreicht, um den abgelösten Schmutz und den größten Teil der Waschmittelreste aus der Wäsche auszuspülen. Im Vergleich zum Stand der Technik, bei dem bis zu fünf derartige Spül gänge mit erheblich größeren Niveauunterschieden notwendig sind, ergibt sich bei Anwendung des erfindungsgemäßen Verfahrens eine beträchtliche Wassereinsparung.It has been shown that this small number of pendulum flushing processes in the first rinse is already sufficient to remove the loosened dirt and the largest Part of the detergent residue Rinse out of the laundry. In comparison the prior art, in which up to five such flush courses with significantly larger Differences in level are necessary, results when using the invention Process a considerable water saving.

Claims (2)

Patentansprüche 1. Verfahren zum Abkühlen einer Waschlauge durch Kaitwasserzufuhr am Anfang eines Spulprogramms in einer automatisch gesteuerten Trommeiwaschmaschine mit einer Niveausteuerung bei einem oberen und einem unteren Niveau, d a -d u r c h g e k e n n z e i c h n e t, daß beide Niveaus wesentlich über dem beim Waschprozess üblichen Niveau liegen und beim Erreichen des oberen Niveaus der durch zugeflossenes Kaltwasser verdünnten Waschlauge die Wäschetroflel iür 5 bis 30 Sekunden bewegt, danach die Waschlauge bis zum unteren Niveau abgeführt und dann bis zum Erreichen des oberen Niveaus wieder Kaltwasser zageführt wird. Claims 1. A method for cooling a washing liquor by Kait water supply at the beginning of a winding program in an automatically controlled Drum washing machine with level control at an upper and a lower one Level, d a d u r c h e k e n n n n e i c h n e t, that both levels are essential are above the normal level during the washing process and when the upper level is reached Levels of the washing liquor diluted by the inflow of cold water agitated for 5 to 30 seconds, then drained the detergent solution down to the lower level and then cold water is fed again until the upper level is reached. 2. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß die angegebenen Verfahrensschritte ein bis zweimal wiederholt werden.2. The method according to claim i, characterized in that the specified Procedure steps are repeated once or twice.
DE19813141792 1981-10-21 1981-10-21 Process for the water-saving cooling of a washing liquor Withdrawn DE3141792A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19813141792 DE3141792A1 (en) 1981-10-21 1981-10-21 Process for the water-saving cooling of a washing liquor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813141792 DE3141792A1 (en) 1981-10-21 1981-10-21 Process for the water-saving cooling of a washing liquor

Publications (1)

Publication Number Publication Date
DE3141792A1 true DE3141792A1 (en) 1983-05-05

Family

ID=6144574

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19813141792 Withdrawn DE3141792A1 (en) 1981-10-21 1981-10-21 Process for the water-saving cooling of a washing liquor

Country Status (1)

Country Link
DE (1) DE3141792A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4779430A (en) * 1984-10-19 1988-10-25 Hitachi, Ltd. Fully-automated washer
DE3935416A1 (en) * 1989-10-24 1991-04-25 Bosch Siemens Hausgeraete METHOD FOR INITIATING A DISCHARGE PROGRAM SECTION IN AN AUTOMATICALLY CONTROLLED DRUM WASHING MACHINE
US5072473A (en) * 1985-10-18 1991-12-17 Hitachi, Ltd. Full-automated washer
DE102014207742A1 (en) * 2014-04-24 2015-10-29 BSH Hausgeräte GmbH Process for the hybrid treatment and rinsing of laundry items and washing machine suitable for this purpose

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4779430A (en) * 1984-10-19 1988-10-25 Hitachi, Ltd. Fully-automated washer
US5072473A (en) * 1985-10-18 1991-12-17 Hitachi, Ltd. Full-automated washer
DE3935416A1 (en) * 1989-10-24 1991-04-25 Bosch Siemens Hausgeraete METHOD FOR INITIATING A DISCHARGE PROGRAM SECTION IN AN AUTOMATICALLY CONTROLLED DRUM WASHING MACHINE
DE102014207742A1 (en) * 2014-04-24 2015-10-29 BSH Hausgeräte GmbH Process for the hybrid treatment and rinsing of laundry items and washing machine suitable for this purpose
DE102014207742B4 (en) * 2014-04-24 2021-02-11 BSH Hausgeräte GmbH Process for the hybrid treatment and rinsing of laundry items as well as a suitable washing machine

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