EP2352413B1 - Verfahren zum betreiben einer geschirrspülmaschine - Google Patents

Verfahren zum betreiben einer geschirrspülmaschine Download PDF

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Publication number
EP2352413B1
EP2352413B1 EP09736941A EP09736941A EP2352413B1 EP 2352413 B1 EP2352413 B1 EP 2352413B1 EP 09736941 A EP09736941 A EP 09736941A EP 09736941 A EP09736941 A EP 09736941A EP 2352413 B1 EP2352413 B1 EP 2352413B1
Authority
EP
European Patent Office
Prior art keywords
dishwasher
desorption process
program step
temperature
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.)
Active
Application number
EP09736941A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2352413A1 (de
Inventor
Michael Fauth
Helmut Jerg
Kai Paintner
Andreas Reiter
Roland Rieger
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
Priority to PL09736941T priority Critical patent/PL2352413T3/pl
Publication of EP2352413A1 publication Critical patent/EP2352413A1/de
Application granted granted Critical
Publication of EP2352413B1 publication Critical patent/EP2352413B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A47L15/0018—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
    • A47L15/0042—Desorption phases of reversibly dehydrogenated drying material, e.g. zeolite in a sorption drying system
    • 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
    • A47L15/48—Drying arrangements
    • A47L15/481—Drying arrangements by using water absorbent materials, e.g. Zeolith
    • 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
    • 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
    • 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
    • A47L2401/18—Air 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
    • A47L2501/11—Air heaters

Definitions

  • the invention relates to a method for operating a dishwasher, in particular a domestic dishwasher according to the preamble of patent claim 1.
  • the object of the invention is to achieve a further improved desorption result for the reversibly dehydratable drying material of the sorption drying apparatus.
  • the invention is based on a method for operating a dishwasher, in particular a domestic dishwasher, with a sorption drying system in which a desorption process of a reversibly dehydratable dry material, in particular zeolite, is effected at least temporarily.
  • parameters influencing the desorption process are evaluated for determining the time for carrying out the desorption. This allows for an adapted selection of the time at which the Desorption should take place to ensure efficient desorption, since it is ensured that the desorption process is carried out when the temperature of the air in the interior of the dishwasher is relatively low and thus the moisture absorption capacity of the air is greatest.
  • the air temperature in the dishwasher and / or the water inlet temperature are detected as parameters.
  • the air temperature in the dishwasher depends on room temperature in the vicinity of the dishwasher. However, the air temperature can also deviate greatly from the room temperature, if shortly before a Spülprogrammlauf took place without it could come to a cooling of the dishwasher. If only the air temperature or water inlet temperature is detected, the determination of the time for performing the desorption can be made on the basis of stored values, e.g. in tabular form. In this case, the water supply temperature, the extent of cooling by a refilling with liquid, in particular with water from a home-side supply system, set.
  • both the air and the water inlet temperature are detected, a comparison with stored values can also be made and / or the difference of the two temperatures is evaluated and the time of desorption is determined. The difference between these two temperature values is therefore a measure for determining how strong the temperature in the interior of the dishwasher will fall below the starting temperature.
  • the detection of the room temperature can also be provided alone or together with the water inlet temperature at the installation site of the dishwasher.
  • a desorption process is carried out at least partially during a first program step, while the heating means of the dishwasher are operated when the air temperature is higher than the water supply temperature by a predetermined temperature value at the most.
  • the heating means may be an air heater, can be erwakbar with the air, which is driven by the drying material.
  • no excessive cooling is to be expected by refilling with liquid, so that a Desortionsvorgang is performed in the first program step in which a heating of liquid takes place, such as the program step cleaning or the program step prewash, if a particularly intensive cleaning is desired.
  • a desorption process is carried out at least partially during a program step in which heating means are operated after an at least partial liquid change when the air temperature is higher than the water inlet temperature at least by a predetermined temperature value.
  • heating means are operated after an at least partial liquid change when the air temperature is higher than the water inlet temperature at least by a predetermined temperature value.
  • a significant cooling is to be expected by refilling with liquid, so that a Desortionsvorgang is carried out at the later program step, before a refilling is carried out as part of a fluid change. It can be e.g. to the program step cleaning or the program step rinse clear
  • the predetermined temperature value is selected substantially between 3 to 30 ° C, in particular between 5 and 15 ° C. This ensures that only in the case of large temperature differences does the time of the desorption process be postponed, in which due to the high starting temperature no complete and efficient desorption is to be expected.
  • the desorption process is carried out at least partially during a program step cleaning with detergent addition and cleaning action. This allows a particularly energy-efficient cleaning of items to be washed.
  • the desorption process is carried out at least partially during a program step of pre-rinsing with cleaning action without addition of detergent.
  • the cleaning effect during the program step of pre-rinsing and thus of the rinsing program can be increased.
  • the desorption process is carried out at least partially during a program step rinsing with rinse aid addition.
  • the drying effect during the subsequent program step drying can be increased or the duration of the program step drying can be reduced.
  • a quantity of liquid in particular a quantity of fresh water from a house-side water supply system, is temporarily stored in a water tank which is in heat-conducting contact with the surroundings of the dishwasher.
  • the water tank is at the end of a Rinsing program run filled, so that in the meantime, until the next start of a Spülprogramm takelaufs cached in the water tank amount of water from the inlet water temperature of eg 15 ° C can warm to room temperature.
  • This liquid heated to room temperature is used in a rinse cycle to perform the rinse program step of pre-rinse.
  • a renewed filling with water from the water supply system causes a corresponding cooling below the room temperature.
  • a dishwasher in particular a domestic dishwasher, which is designed to at least one program step of a plurality of program steps at least partially to effect a desorption of a reversibly dehydratable dry material, in particular zeolite, a Sorptionstrocknungssystem, provided according to the invention in that detection means are provided for detecting environmental parameters at the location of the dishwasher and evaluation means for determining the time for performing the desorption.
  • FIG. 1 Referenced.
  • a dishwasher GS designed in the present exemplary embodiment as a domestic dishwasher has an interior space IR serving as a washing container, which can be opened or closed for loading and unloading by means of a door (not shown) pivotably hinged to the dishwasher GS.
  • Dishwashing baskets GK are provided in the interior IR of the dishwasher GS for receiving items to be cleaned, which can be pulled out of the interior IR of the dishwasher GS in order to facilitate loading and unloading.
  • means for supplying items to be washed with liquid are provided in the interior IR of the dishwasher GS as spraying arms SA, wherein the liquid may, for example, be filled with water. can act with detergents or with rinse aid added water, so as to effect a cleaning effect or streak-free drying.
  • the liquid flowing down from the items to be washed collects in a pump sump PS, which is arranged in the bottom area of the interior IR of the dishwasher GS.
  • the spray arms SA are fluidly connected via a supply line ZL with a circulation pump UP, which is arranged in a floor assembly BO below the interior IR of the dishwasher GS next to other components of the dishwasher.
  • a circulation pump UP In operation, i. when the circulation pump UP is running, the circulation pump UP sucks the liquid accumulated in the pump sump PS and delivers it through the supply line ZL to the spray arms SA.
  • the circulating pump In order to heat the liquid circulated by the operation of the circulating pump UP, the circulating pump has an integrated water heater WZ for heating the liquid.
  • a separate instantaneous water heater or another water heater may be provided for emptying the interior IR of the dishwasher GS.
  • a drain pump LP is provided, which is also in fluid-conducting connection with the pump sump PS and can be connected to a disposal line EL to a house-side sewage disposal network.
  • the dishwasher GS has a Sorptionstrockungssystem, with the arranged in the baskets GR and cleaned items at the end of a Rinse program run can be dried.
  • a sorption SB is provided in the bottom assembly BO, which is air-conductively connected to an inlet EI via an air channel LK, wherein a fan LT is provided for generating a forced flow.
  • an outlet opening AU is provided in the bottom area of the interior IR dishwasher GS.
  • a drying agent for carrying out an exothermic drying is provided in the sorption container SB.
  • It is a reversibly dehydratable drying material, e.g. Zeolite, which absorbs water due to its hydroscopic property, at the same time heat energy is released. By this released heat energy heating of the circulating air is effected, which at the same time increases the moisture absorption capacity of the circulating air.
  • an amount of liquid is stored in the drying material ZEO.
  • an air heater HZ is provided, which is arranged in the present embodiment in the sorption SB.
  • an air heater outside the sorbent tank SB e.g. in the air passage LK to cause heating of the conveyed into the sorbent SB air.
  • an air flow generated by the fan LT is heated, so that the drying material ZEO can be heated to temperatures at which the amount of water stored in the drying material ZEO can be released again.
  • Dishwashers GS continuous for cleaning and drying of items to be cleaned, wash programs, which consist of a plurality of program steps, which are passed through successively.
  • a program can from the Program steps pre-rinse V, cleaning R, intermediate rinsing Z, rinsing K and drying T exist, with individual program steps, such.
  • the pre-wash V or intermediate rinse Z can also be hidden, while it is also conceivable to pass through individual program steps repeatedly, such as the intermediate rinsing Z.
  • ware is charged with water without the addition of detergents, this either with unheated water or with heated water by means of a heater.
  • water can be used that has been stored in a water tank (not shown).
  • Such a water tank can be in heat-conducting connection with the environment of the dishwasher, so that liquid stored in the water tank, such as water from a home-side supply system, can warm up to room temperature.
  • cleaning step R cleaning of items to be washed takes place by application of detergent-added water, ie during the cleaning stage a detergent addition takes place.
  • a heating of the liquid so as to increase the cleaning effect of the cleaning agent.
  • the cleaning step R is composed of a heating phase P1, P2, in which the liquid is heated in the dishwasher GS by means of heating until a predetermined maximum temperature is reached and a subsequent Nachwaschphase together, while the heater is turned off, the slowly cooling liquid by the circulating pump UP is circulated.
  • the intermediate rinse Z program step liquid is applied to the items to be washed in order to convey dirt residues from the dishwasher GS.
  • the next step in the program is rinsing K in preparation for the program step drying T, in which water mixed with rinse aid is circulated by means of the circulation pump and applied to the now cleaned items via the spray arms SA.
  • the program step drying T in which the ware is no longer charged with liquid, but by operation of the fan LT through the interior IR of the dishwasher GS and the sorbent SB circulating air flow is generated.
  • a complete or at least partial fluid change can be carried out between the individual program steps, ie the dishwasher GS is emptied by means of the drain pump LP and the disposal line EL and refilled again by a supply line (not shown) making a connection to a house-side supply system.
  • the fluid circulated by the circulation pump UP first passes through during a first phase P1 heated air heater HZ in the sorption SB to a maximum temperature T1, wherein at the same time the fan LT generates a circulating through the interior IR of the dishwasher GS air flow.
  • the air heater HZ heats the drying material ZEO into the sorption container SB to temperatures at which the amount of water stored in the drying material ZEO is expelled from the drying material ZEO and conveyed through the outlet opening AU into the interior IR dishwasher GS.
  • the blow-out opening AU is cooled in the interior IR dishwasher GS, in order thus to ensure that due to the heating power of the air heater HZ there is no excessive heating of the blow-out opening HZ with overheating damage.
  • the circulation pump UP is operated so that liquid is conveyed by the circulation pump from the pump sump PS through the supply line to the spray arm SA.
  • the spray arms SA are set in rotation and cause by spraying the exhaust opening AU, in particular a cap covering the exhaust opening AU with liquid, a cooling thereof.
  • the amount of liquid is heated from the first temperature T1 to the second temperature T2 by means of the water heater WZ.
  • the rotational speed of the circulation pump UP to increase the spray pressure of the water jets emerging from the spray arm SA.
  • the volume of liquid circulated by means of the circulation pump UP is increased by a refilling step, for example.
  • a refilling step for example.
  • the speed of the circulation pump UP for example, continuously, until the circulation pump again runs under runout condition, ie, during operation no air bubbles sucks, which reduces the flow rate of the circulation pump UP and leads to an undesirable noise.
  • This makes it possible to take into account the amount of liquid released during the desorbing, which was stored in the drying material ZEO, in the dimensioning of the amount of liquid to be replenished and thus to reduce the total water requirement with improved cleaning performance.
  • a dripping AB is provided (see. FIG. 2 ), while the liquid adhering to the cleaned items to be washed, ie, water added with rinse aid, can run off the items to be washed due to gravity and can collect in the pump sump PS of the interior IR of the dishwasher GS. As a result, the amount of liquid to be absorbed by the sorption drying system is reduced and thus the duration of the program step drying T.
  • the air heater HZ liquid is heated starting from a start temperature T0 during a phase P1 'to a temperature T1' in which as described above by means of the fan LT by a the interior IR of the dishwasher GS and the sorbent SB circulating air flow is generated.
  • the air heater HZ is deactivated.
  • the drying material ZEO is not completely desorbed, ie in the drying material ZEO a residual amount of water is stored.
  • the subsequent program step cleaning R first heated the liquid by means of the air heater HZ to a temperature T1 and then by operating the Water heating to the temperature T2 heated. That is, the desorption phase of the drying agent ZEO in the sorption container SB is divided into two parts in this embodiment and is distributed over two program steps, namely the program step pre-wash V and the program step cleaning R.
  • phase P3 (cf. FIG. 3 ), while the water heating WZ is used to further heat the liquid to a temperature T3.
  • a heating of the liquid takes place.
  • the water heater WZ liquid which is water or water mixed with rinse aid
  • T4 is heated to a temperature T4.
  • the water heating and the air heater HZ be used to complete, for example, a previously not complete in the course of the program desorption.
  • another phase P5 further heating of the liquid to a Temperature T5 done to improve drying with the sorption drying system.

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  • Washing And Drying Of Tableware (AREA)
EP09736941A 2008-11-07 2009-10-16 Verfahren zum betreiben einer geschirrspülmaschine Active EP2352413B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09736941T PL2352413T3 (pl) 2008-11-07 2009-10-16 Sposób działania zmywarki do naczyń

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008043576A DE102008043576A1 (de) 2008-11-07 2008-11-07 Verfahren zum Betreiben einer Geschirrspülmaschine
PCT/EP2009/063601 WO2010052116A1 (de) 2008-11-07 2009-10-16 Verfahren zum betreiben einer geschirrspülmaschine

Publications (2)

Publication Number Publication Date
EP2352413A1 EP2352413A1 (de) 2011-08-10
EP2352413B1 true EP2352413B1 (de) 2012-09-05

Family

ID=41343319

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09736941A Active EP2352413B1 (de) 2008-11-07 2009-10-16 Verfahren zum betreiben einer geschirrspülmaschine

Country Status (8)

Country Link
US (1) US9955845B2 (pl)
EP (1) EP2352413B1 (pl)
CN (1) CN102209484B (pl)
DE (1) DE102008043576A1 (pl)
ES (1) ES2391249T3 (pl)
PL (1) PL2352413T3 (pl)
RU (1) RU2505263C2 (pl)
WO (1) WO2010052116A1 (pl)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5445566B2 (ja) * 2011-11-29 2014-03-19 パナソニック株式会社 食器洗い機
DE102012013322A1 (de) 2012-07-06 2014-01-09 Eichenauer Heizelemente Gmbh & Co. Kg Geschirrspülmaschine
DE102013101673A1 (de) 2013-02-20 2014-08-21 Miele & Cie. Kg Geschirrspülmaschine und Verfahren zum Betreiben einer Geschirrspülmaschine
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.
DE102021207644A1 (de) * 2021-07-19 2023-01-19 BSH Hausgeräte GmbH Haushaltsgeschirrspülmaschine mit einem Sorptionstrocknungssystem sowie zugehöriges Verfahren zum Durchführen eines Energiespar- Geschirrspülprogramms

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE677537A (pl) * 1965-03-12 1966-08-01
US8293024B2 (en) * 2003-07-30 2012-10-23 Bsh Bosch Und Siemens Hausgeraete Gmbh Dishwasher
DE10353774A1 (de) 2003-07-30 2005-02-24 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine
DE10353775A1 (de) * 2003-07-30 2005-02-24 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zur Betreiben eines Gerätes mit wenigstens einem Teilprogrammschritt "Trocknen"
DE10356787A1 (de) 2003-12-04 2005-07-07 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine
JP2006020753A (ja) * 2004-07-07 2006-01-26 Matsushita Electric Ind Co Ltd 食器洗い乾燥機
DE102004057019A1 (de) 2004-11-25 2006-06-01 BSH Bosch und Siemens Hausgeräte GmbH Wasserführendes Haushaltgerät mit einem Vorratsbehälter
CN200951070Y (zh) * 2004-12-09 2007-09-26 Bsh博施及西门子家用器具有限公司 洗碗机
DE102005004096A1 (de) * 2004-12-09 2006-06-14 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine mit einer Sorptionstrockenvorrichtung
DE102005004097A1 (de) * 2004-12-09 2006-06-14 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine und Verfahren zum Betreiben derselben
DE102007017284B3 (de) * 2007-04-12 2008-11-13 BSH Bosch und Siemens Hausgeräte GmbH Temperaturerfassung bei Zeolithtrocknung

Also Published As

Publication number Publication date
DE102008043576A1 (de) 2010-05-12
WO2010052116A1 (de) 2010-05-14
ES2391249T3 (es) 2012-11-22
PL2352413T3 (pl) 2013-02-28
US9955845B2 (en) 2018-05-01
RU2011119250A (ru) 2012-12-20
RU2505263C2 (ru) 2014-01-27
CN102209484B (zh) 2014-11-12
US20110203614A1 (en) 2011-08-25
EP2352413A1 (de) 2011-08-10
CN102209484A (zh) 2011-10-05

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