EP2352414A1 - Verfahren zum betreiben einer geschirrspülmaschine - Google Patents
Verfahren zum betreiben einer geschirrspülmaschineInfo
- Publication number
- EP2352414A1 EP2352414A1 EP09744114A EP09744114A EP2352414A1 EP 2352414 A1 EP2352414 A1 EP 2352414A1 EP 09744114 A EP09744114 A EP 09744114A EP 09744114 A EP09744114 A EP 09744114A EP 2352414 A1 EP2352414 A1 EP 2352414A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- dishwasher
- drying
- program step
- liquid
- items
- 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
Links
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
- A47L15/48—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
- A47L15/001—Drain phases, including initial, intermediate or partial draining 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
- A47L15/0002—Washing processes, i.e. machine working principles characterised by phases or operational steps
- A47L15/0013—Drying phases, including dripping-off 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
- 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 operating a dishwasher, in particular a domestic dishwasher according to the preamble of patent claim 1.
- Dishwashers are known to go through wash programs comprising a plurality of program steps, such as e.g. Pre-rinsing, cleaning, rinsing, rinsing and drying the cleaned items.
- program step rinsing the cleaned items to be washed are treated with a liquid, in particular with a liquid added with a rinse aid, and then dried in the program step of drying.
- the invention has for its object to achieve a further improved drying result.
- the invention is based on a method for operating a dishwasher, in particular a domestic dishwasher, in which at least in one program step rinsing cleaned items to be treated with a liquid, and then in a program step drying a drying of the items.
- a dripping phase is passed, at the beginning of the loading of items to be washed is finished with the liquid and the liquid drains from the dishes.
- the drying performance can be increased or the duration of the program step drying can be reduced in a surprisingly simple manner and at the same time the amount of liquid stored in the desiccant of the sorption drying system can be reduced. This in turn shortens the duration of the desorption process.
- the dripping phase essentially takes between 3 and 15 minutes, in particular between 5 and 10 minutes. This allows to increase the drying performance without extending the total duration of a wash program.
- a forced flow of the items to be dried is carried out during the program step dry. This further improves the drying result and at the same time shortens the duration of the program step drying.
- the forced flow is generated by means of a fan.
- drying the fan for a predetermined period of time is operated substantially between 1 and 60 minutes, in particular between 3 and 30 minutes.
- moist air is passed from an interior of the dishwasher through a sorption drying system. This allows a particularly energy-efficient drying of cleaned items.
- a reversibly dehydratable drying agent in particular zeolite, is used for the exothermic drying.
- This material is characterized by a high water absorption capacity as well as a good reversible Dehydratability, wherein the drying line can be increased again without additional expenditure of energy by the exothermic drying.
- a dishwasher in particular domestic dishwasher, at least formed to at least one
- Program step rinse washed items to be treated with a liquid and then dried in a program step drying the items to be washed, it being provided according to the invention that before the start of the program step drying a
- Draining phase is provided at the beginning of the loading of items to be washed with the liquid is completed and the liquid drains from the dishes.
- FIG. 1 is a schematic representation of an embodiment of a dishwasher according to the invention with a sorption drying system
- Fig. 2 is a schematic representation of the temperature profile during a first
- FIG. 3 shows a schematic representation of the temperature profile of a further, second exemplary embodiment of a rinsing program run according to the invention.
- FIG. 4 is a schematic representation of the temperature profile of a further, third exemplary embodiment of a rinsing program run according to the invention.
- 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.
- Interior IR of the dishwasher GS dish baskets GK are provided for receiving items to be cleaned, which can be pulled out of the interior IR of the dishwasher GS 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, among other components 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 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 which arranged in the baskets GR and cleaned items can be dried at the end of a Spülprogramm penatoriums.
- a sorption SB is provided in the bottom assembly BO, which is air-conductively connected via an air duct LK with an inlet El, wherein for generating a forced flow, a fan LT is provided.
- 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 reversible dehydratable drying material, such as 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
- Drying material ZEO stored amount of water 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.
- Such a program may consist of the program steps pre-wash V, cleaning R, intermediate rinsing Z, rinsing K and drying T, with individual program steps such.
- the pre-rinsing V or intermediate rinsing Z can also be hidden, while it is also conceivable to pass through individual program steps repeatedly, such as the intermediate rinsing Z.
- Wash 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).
- a water tank can with the environment of the dishwasher in heat-conducting Connection, so that in the water tank cached liquid, such as water from a home-side supply system, can warm 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 is added. Furthermore, 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.
- heating of liquid takes place only in the program step cleaning R.
- the liquid circulated by the circulation pump UP is heated by the air heater HZ in the sorption tank SB to a maximum temperature T1, wherein the fan LT at the same time circulates through the interior IR of the dishwasher GS air flow generated.
- 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, so as to ensure that due to the heating power of the air heater HZ no excessive heating of the blow-out opening HZ with overheating damage occurs.
- the circulation pump UP is operated so that liquid is conveyed from the pump sump PS through the supply line to the spray arm SA by the circulation pump.
- 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.
- Circulation pump UP increased circulated amount of liquid by a refilling step, for example, at time t1 (see Figure 2) and then increases the speed of the circulation pump UP, e.g. continuously until the recirculation pump runs again in a run-out condition, i.e., during operation, does not draw in air bubbles, which is the capacity of the circulation pump
- a dripping phase AB is provided (see Figure 2), while the liquid adhering to the cleaned items to be washed, i. with rinse aid added water, can drain from the washware 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 program step drying T begins by putting the fan LT, so that a through the interior of the IR
- Dishwasher and the sorbent SB circulating air flow is generated to dry the cleaned items in the baskets GK.
- Program step drying T is carried out another pumping by means of the drain pump
- LP by means of which a remaining amount of liquid from the dishwasher GS is conveyed through the discharge line EL in a house-side wastewater disposal system.
- it can also be provided to perform a further pump-down process additionally or alternatively at the beginning of the program step drying T.
- 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 liquid is first heated by the air heater HZ to a temperature T1 in the subsequent program step cleaning R and then heated by operation of the water heater to the temperature T2. 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.
- a further phase P3 (see FIG. 3) can be provided, while the water heater WZ is used to further heat the liquid to a temperature T3.
- the liquid is heated during the rinsing step K.
- the water heater WZ liquid which is water or water mixed with rinse aid
- a temperature 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.
- a further heating of the liquid to a temperature T5 can take place in order to improve the drying with the sorption drying system.
Landscapes
- Washing And Drying Of Tableware (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL09744114T PL2352414T3 (pl) | 2008-11-07 | 2009-10-16 | Sposób eksploatacji zmywarki do naczyń |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008043553A DE102008043553A1 (de) | 2008-11-07 | 2008-11-07 | Verfahren zum Betreiben einer Geschirrspülmaschine |
PCT/EP2009/063597 WO2010052114A1 (de) | 2008-11-07 | 2009-10-16 | Verfahren zum betreiben einer geschirrspülmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2352414A1 true EP2352414A1 (de) | 2011-08-10 |
EP2352414B1 EP2352414B1 (de) | 2014-04-23 |
Family
ID=41531610
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09744114.1A Revoked EP2352414B1 (de) | 2008-11-07 | 2009-10-16 | Verfahren zum betreiben einer geschirrspülmaschine |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2352414B1 (de) |
DE (1) | DE102008043553A1 (de) |
ES (1) | ES2461894T3 (de) |
PL (1) | PL2352414T3 (de) |
WO (1) | WO2010052114A1 (de) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2183348A5 (de) * | 1972-05-03 | 1973-12-14 | Rapp Electronik | |
DE9421812U1 (de) * | 1994-10-25 | 1997-01-23 | Bauknecht Hausgeräte GmbH, 70565 Stuttgart | Vorrichtung zum Trocknen von Geschirr in einer Geschirrspülmaschine |
DE19818812A1 (de) * | 1998-04-27 | 1999-10-28 | Aeg Hausgeraete Gmbh | Geschirrspülmaschine sowie Verfahren zum Trocknen von Spülgut |
DE10353774A1 (de) * | 2003-07-30 | 2005-02-24 | BSH Bosch und Siemens Hausgeräte GmbH | Geschirrspülmaschine |
FR2879429B1 (fr) * | 2004-12-21 | 2008-12-05 | Brandt Ind Sas | Lave-vaisselle et procede de mise en oeuvre du sechage de la vaisselle dans ce lave-vaisselle |
DE202008011159U1 (de) * | 2008-08-21 | 2008-11-06 | BSH Bosch und Siemens Hausgeräte GmbH | Geschirrspülmaschine und Sorptionstrockenvorrichtung, deren Sorptionsmaterial gewichtsmäßig an die Benetzungsmenge im Spülraum angepasst ist |
-
2008
- 2008-11-07 DE DE102008043553A patent/DE102008043553A1/de not_active Withdrawn
-
2009
- 2009-10-16 EP EP09744114.1A patent/EP2352414B1/de not_active Revoked
- 2009-10-16 PL PL09744114T patent/PL2352414T3/pl unknown
- 2009-10-16 ES ES09744114.1T patent/ES2461894T3/es active Active
- 2009-10-16 WO PCT/EP2009/063597 patent/WO2010052114A1/de active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2010052114A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP2352414B1 (de) | 2014-04-23 |
DE102008043553A1 (de) | 2010-05-12 |
PL2352414T3 (pl) | 2014-09-30 |
WO2010052114A1 (de) | 2010-05-14 |
ES2461894T3 (es) | 2014-05-21 |
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