EP3087896B1 - Procede de rinçage de vaisselle - Google Patents

Procede de rinçage de vaisselle Download PDF

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Publication number
EP3087896B1
EP3087896B1 EP16020134.9A EP16020134A EP3087896B1 EP 3087896 B1 EP3087896 B1 EP 3087896B1 EP 16020134 A EP16020134 A EP 16020134A EP 3087896 B1 EP3087896 B1 EP 3087896B1
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EP
European Patent Office
Prior art keywords
rinsing
phase
washing
rinse
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.)
Active
Application number
EP16020134.9A
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German (de)
English (en)
Other versions
EP3087896A1 (fr
Inventor
Carcus Kara
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
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Miele und Cie KG
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Publication date
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Priority to PL16020134T priority Critical patent/PL3087896T3/pl
Publication of EP3087896A1 publication Critical patent/EP3087896A1/fr
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Publication of EP3087896B1 publication Critical patent/EP3087896B1/fr
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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
    • A47L15/0002—Washing processes, i.e. machine working principles characterised by phases or operational steps
    • A47L15/0005—Rinsing phases, e.g. pre-rinsing, intermediate rinsing, final rinsing
    • 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
    • A47L15/0002—Washing processes, i.e. machine working principles characterised by phases or operational steps
    • A47L15/0007—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
    • A47L15/0018—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
    • A47L15/0047—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
    • 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
    • A47L2501/30—Regulation of machine operational steps within the washing process, e.g. performing an additional rinsing phase, shortening or stopping of the drying phase, washing at decreased noise operation conditions
    • 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
    • A47L2601/00—Washing methods characterised by the use of a particular treatment
    • A47L2601/02—Pressurised cleaning liquid delivered by a pump

Definitions

  • the invention relates to a method for rinsing items to be washed in a program-controlled dishwashing machine in which cleaning, intermediate rinsing and rinsing are carried out successively as rinsing steps, the rinsing step of cleaning starting with a water inlet, followed by a first rinsing phase, a water heating phase and a second rinse phase.
  • Dishwashers previously known from the prior art typically have a washing container which provides a washing compartment. This is the user side accessible through a feed opening, which is fluid-tightly closed by means of a pivotally mounted flushing door.
  • the washing container serves to receive items to be cleaned, which may be dishes, cutlery pieces and / or the like, for example.
  • the dishwasher For loading of items to be cleaned with water as the rinsing liquid, the so-called rinsing liquor, the dishwasher has a spray device in the interior of the washing container.
  • This spraying device provides rotatably mounted spray arms, with typically two or three such spray arms being provided.
  • the items to be cleaned are treated with rinsing fluid by means of rotating spray arms.
  • the process implementation of the rinsing of items to be washed is program-controlled.
  • a plurality of predetermined rinse programs are available for this purpose, which can be selected on the user side. After the user has selected the rinse program selected by the user, it will run until it is finished on the machine side automatically, without the need for further user-side intervention.
  • Prior art program a generic method for washing items to be washed is performed, in which successively as rinsing steps a cleaning, intermediate rinsing and rinsing are performed.
  • the rinsing step of cleaning the actual Spülgutgraphy With the completion of this rinsing step, the rinsing liquor used for cleaning is dirty, which is why it is to be replaced for a further process implementation, which is carried out in the rinsing step of the intermediate rinsing.
  • a final rinse is then carried out in a final rinse step.
  • the rinsing step of the cleaning is typically subdivided into individual rinsing phases. At the beginning is the water inlet. This is followed by a first rinse phase, which is also called pre-rinse. During this rinsing phase is carried out without the involvement of Wasseraufsammlungvorraum recirculation of the rinsing liquor, thus a cold water cleaning.
  • the prewash typically takes between 5 and 10 minutes.
  • Pre-rinsing is followed by a water-heating phase.
  • the rinsing liquor is heated to a predetermined target temperature by means of a water heating device provided on the machine side, which is, for example, between 50 ° C and 55 ° C.
  • This second rinse phase typically lasts longer than 60 minutes, preferably between 60 minutes and 90 minutes.
  • the rinsing step of the cleaning also ends.
  • the invention proposes a method of the aforementioned type, which is characterized in that for a predetermined period of time for the rinsing step of the cleaning, the rinsing time of the first rinsing phase of the cleaning is selected to be longer than the rinsing time of the second rinsing phase of the cleaning.
  • the rinsing step of the cleaning is subdivided according to the invention into several rinsing phases. At the beginning is the water inlet. This is followed by a first rinse phase, which is also called pre-rinse. During this rinsing phase is carried out without the involvement of Wasseraufsammlungvorraum recirculation of the rinsing liquor, thus a cold water cleaning. Pre-rinsing is followed by a water-heating phase.
  • the rinsing liquor which in particular was already used in the first rinsing phase, the pre-rinsing, heated by means of a machine provided Wasseraufloomvoriques to a predetermined, in particular for the selected rinse program, target temperature, for example, between 50 ° C and 55 ° C may be.
  • target temperature for example, between 50 ° C and 55 ° C
  • the so-called holding phase After heating the rinsing liquor during the Wasseraufloomphase followed by a second rinse phase, the so-called holding phase.
  • circulation of the previously warmed up rinsing liquor is carried out.
  • the second rinsing phase ends, the rinsing step of the cleaning also ends. Only after the end of the second rinsing phase, in particular, is a pumping out, that is to say discarding, the rinsing liquor present in the circulating circulation since the water inlet at the beginning of the cleaning step.
  • the second rinsing phase of the cleaning ie the holding phase is shorter than the first rinsing phase of the cleaning, ie the pre-rinsing is selected.
  • the cleaning result does not worsen by the extension of the pre-rinsing while shortening the holding phase.
  • the result of the cleaning is largely influenced by performing the rinsing step of cleaning for a comparatively long period of time at an elevated water temperature. For this reason, with the procedure according to the State of the art also provided that the second rinsing phase is carried out much longer than the first rinsing phase.
  • the first rinsing phase is selected to be longer, in particular substantially longer, than the second rinsing phase, ie, the duration of the cleaning with previously heated water is markedly reduced, in contrast to the prior art. Despite this shortening of the second rinsing phase, however, there is no worse cleaning result.
  • the inventive method performance provides the advantage that it comes during the comparatively long first rinsing phase to a heating of the circulated rinsing, due to the circulation of the rinsing liquor during the longer first rinsing phase, in particular by the power loss of circulating the rinsing liquor provided circulation pump and by pipe friction , Because of these effects is at the end of the first rinsing phase, a rinsing liquor, which is about 2 ° C warmer in a process implementation of the type according to the invention as a recirculated by the previously known method rinse. It was recognized that each ° C difference compared to the conventional process implementation can save about 12 Wh of energy.
  • Due to the shortened by the inventive method implementation in contrast to the prior art holding phase provides a further advantage. Due to the shortening of the holding phase is a reduced cooling of the previously heated to the target temperature during the Wasseraufrichphase flushing. The reduced cooling results from the fact that the rinsing liquor is circulated less long due to the shortened holding phase. Thus, the rinsing liquor is warmer with completion of the second rinsing phase in the process implementation of the invention than in a method implementation according to the prior art.
  • the achievable with the method according to the invention temperature difference for performing the method according to the prior art is for example 3 ° C.
  • the rinsing liquor which is warmer after the process according to the invention at the end of the intermediate rinsing causes less energy to be used for heating the rinsing liquor during rinsing following the intermediate rinsing in order to achieve the temperature required for rinsing. Due to deadweight effects in the previous rinsing steps, approximately 18 W / h less heating energy is required per ° C warmer rinse liquor. At a temperature difference to the previously known process implementation of about 2 ° C, this makes a less required heating energy of about 36 Wh.
  • the detergent chemistry added during the cleaning of the rinsing liquor is not released until the beginning of the water heating phase.
  • an exclusive use of water as rinsing liquid without the addition of Process chemicals is provided, which can lead to an impairment of the added process chemicals with the addition of process chemicals already at the beginning of the pre-rinsing.
  • an addition takes place only at the beginning of the water heating phase.
  • the purging duration ratio of first to second rinsing phase is selected between 2: 1 and 1.6: 1, preferably between 1.9: 1 and 1.7: 1. Accordingly, it is provided that the duration of the second rinsing phase is considerably longer than the duration of the first rinsing phase.
  • the first rinsing phase i. the pre-wash lasts twice as long as the second rinse phase, i. the holding phase.
  • the time for the rinsing step of the cleaning remains unchanged overall, in particular, it is less than 100 minutes, preferably 70 to 90 minutes. Rather, it is contemplated by the invention to reverse the ratio of the purge phases and the second purge phase, i. to significantly shorten the holding phase in contrast to the prior art while simultaneously extending the first rinsing phase, i. of pre-rinsing.
  • the rinsing period of the first rinsing phase is between 30 minutes and 50 minutes, preferably between 35 minutes and 45 minutes, and even more preferably 40 minutes. It is in particular more than 40%, preferably more than 45% or more than 50% of the rinsing time of the entire cleaning step, consisting of the first rinsing phase, i. Pre-rinsing, water-heating phase and second rinsing phase, i. Holding phase.
  • the rinsing period of the first rinsing phase is approximately between 5 minutes and 10 minutes.
  • a much longer first rinsing phase is proposed with the method according to the invention, which is preferably 40 minutes, depending on the loading condition of the dishwasher.
  • the second rinsing phase is corresponding shortened.
  • the second rinsing phase has a duration of 15 to 35 minutes, preferably a duration of between 20 and 30 minutes.
  • the water temperature is about 2 ° C above the water inlet temperature at the end of the first rinsing phase.
  • the heating of the water temperature without the involvement of a machine-side Wasseraufloomvorraum happens due to pipe friction losses during the water circulation and due to heat losses of provided for a circulation heat pump.
  • the rinsing duration of the first rinsing phase is also determined, among other things, according to how much water heating has occurred during the first rinsing phase.
  • the first rinse phase is terminated as soon as the water temperature reaches a predetermined value, e.g. 2 ° C above the water inlet temperature.
  • the purging duration of the first rinse phase can be selected.
  • the rinsing time of the first rinsing phase when equipped with 14 place settings is approx. 40 min.
  • Fig. 1 shows a schematic diagram representation of a method implementation according to the prior art according to curve 1 and a method implementation according to the invention according to curve 2 in the diagram 1, the temperature T is removed over the time t.
  • the process implementation according to the prior art according to curve 1 begins at time t 0 with the temperature T 0 .
  • the first purge step is that of purge R, which is performed until time t 5 .
  • This is followed by the rinsing step of the intermediate rinsing Z to t 6 .
  • the final rinsing step is followed by the rinsing step of rinsing K.
  • the rinsing step of the cleaning R is divided into individual rinsing phases.
  • the water inlet WE follows first a first rinsing phase, the so-called pre-rinsing V. This ends about 5 minutes to 10 minutes at time t 1 .
  • This is followed by a water heating phase WA until the time t 2 .
  • the so-called holding phase H follows a second rinse phase, the so-called holding phase H, namely from t 2 to t 5 .
  • the water introduced into the machine heats up to a temperature T 1 .
  • the washing liquor is heated by a machine-side water heating device, specifically to the target temperature T 2 .
  • the subsequent holding phase H no more heating takes place, so that the water temperature of T 2 to T 3 is reduced.
  • the rinsing liquor has a temperature of T 4 .
  • rinsing of the rinsing liquor takes place again for the purpose of rinsing K, namely to a temperature T 5 .
  • the first rinse phase i. the pre-rinse V usually 5 min to 10 min.
  • the second rinsing phase subsequent to the water heating phase, the so-called holding phase H, is typically more than 60 minutes in the prior art.
  • the pre-rinsing V lasts until the time t 3 . Only then does the water heating WA, in which the rinsing liquor previously used for pre-rinsing V is heated by a heater. At this time t 3 , the rinsing liquor has reached a higher temperature, namely the temperature T 1 'due to the longer circulation time in contrast to the prior art. In this respect, a temperature difference results for the method implementation according to the prior art according to ⁇ T 1 .
  • each ° C at the temperature difference ⁇ T 1 saves approximately 12 W / h and at the temperature difference ⁇ T 4 approximately 18 W / h.
  • the higher saving with respect to the temperature difference .DELTA.T 4 results from energy capture effects in the rinse phases preceding the intermediate rinse.

Landscapes

  • Washing And Drying Of Tableware (AREA)

Claims (5)

  1. Procédé de lavage d'articles à laver dans un lave-vaisselle commandé par programme, dans lequel un nettoyage (R), un rinçage intermédiaire (Z) et un rinçage (K) sont effectués successivement comme étapes de lavage, l'étape de lavage consistant au nettoyage (R) commençant par une entrée d'eau (WE), suivie d'une première phase de lavage (V), suivie d'une phase de chauffage d'eau (WA) dans laquelle le liquide de lavage utilisé dans la première phase de lavage (V) est chauffé à une température prédéterminée, et il s'en suit une seconde phase de lavage (H), caractérisé en ce que, pendant une durée prédéterminée pour l'étape de lavage consistant au nettoyage (R), le temps de lavage dans la première phase de lavage consistant au nettoyage (V) est choisi comme étant plus long que le temps de lavage dans la seconde phase de lavage consistant au nettoyage (H).
  2. Procédé selon la revendication 1, caractérisé en ce que le rapport du temps de lavage dans la première phase de lavage (V) à la seconde phase de lavage (H) est choisi entre 2:1 et 1,6:1, de préférence entre 1,9:1 et 1,7:1.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que le temps de lavage dans la première phase de lavage consistant au nettoyage (V) est compris entre 30 et 50 min, de préférence entre 35 et 45 min, de façon encore plus préférée de 40 min.
  4. Procédé selon l'une des revendications précédentes, caractérisé en ce que la température de l'eau (T) est supérieure d'environ 2 °C à la température d'entrée d'eau (T0) à la fin de la première phase de lavage consistant au nettoyage (V).
  5. Procédé selon l'une des revendications précédentes, caractérisé en ce que le temps de lavage dans la première phase de lavage consistant au nettoyage (V) est choisi en fonction de la température de l'eau (T).
EP16020134.9A 2015-04-30 2016-04-13 Procede de rinçage de vaisselle Active EP3087896B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16020134T PL3087896T3 (pl) 2015-04-30 2016-04-13 Sposób zmywania przedmiotów do zmywania

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015106772.2A DE102015106772A1 (de) 2015-04-30 2015-04-30 Verfahren zum Spülen von Spülgut

Publications (2)

Publication Number Publication Date
EP3087896A1 EP3087896A1 (fr) 2016-11-02
EP3087896B1 true EP3087896B1 (fr) 2019-07-31

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EP16020134.9A Active EP3087896B1 (fr) 2015-04-30 2016-04-13 Procede de rinçage de vaisselle

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EP (1) EP3087896B1 (fr)
DE (1) DE102015106772A1 (fr)
ES (1) ES2743500T3 (fr)
PL (1) PL3087896T3 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022201954A1 (de) 2022-02-25 2023-08-31 BSH Hausgeräte GmbH Verfahren, Computerprogrammprodukt und Geschirrspülmaschine

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Publication number Priority date Publication date Assignee Title
DE4125414A1 (de) * 1991-07-31 1993-02-04 Bosch Siemens Hausgeraete Verfahren zum betrieb einer programmgesteuerten geschirrspuelmaschine
DE10054957A1 (de) * 2000-11-06 2002-05-08 Aeg Hausgeraete Gmbh Programmsteuerungsverfahren für ein wasserführendes Haushaltsgerät
DE10222216A1 (de) * 2002-05-16 2003-11-27 Electrolux Home Prod Corp Verfahren zum Betreiben einer Geschirrspülmaschine, Geschirrspülmaschine

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Also Published As

Publication number Publication date
DE102015106772A1 (de) 2016-11-03
ES2743500T3 (es) 2020-02-19
PL3087896T3 (pl) 2020-03-31
EP3087896A1 (fr) 2016-11-02

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