EP1827199B1 - Lave-vaisselle comprenant un dispositif de sechage par sorption et procede pour le faire fonctionner - Google Patents

Lave-vaisselle comprenant un dispositif de sechage par sorption et procede pour le faire fonctionner Download PDF

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Publication number
EP1827199B1
EP1827199B1 EP05819348.3A EP05819348A EP1827199B1 EP 1827199 B1 EP1827199 B1 EP 1827199B1 EP 05819348 A EP05819348 A EP 05819348A EP 1827199 B1 EP1827199 B1 EP 1827199B1
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Prior art keywords
dishwasher
air
drying
fan
program sub
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EP05819348.3A
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German (de)
English (en)
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EP1827199A1 (fr
Inventor
Helmut Jerg
Kai Paintner
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BSH Hausgeraete GmbH
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BSH Bosch und Siemens Hausgeraete GmbH
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Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Priority to PL05819348T priority Critical patent/PL1827199T3/pl
Publication of EP1827199A1 publication Critical patent/EP1827199A1/fr
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    • 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
    • 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

Definitions

  • the invention relates to a dishwasher with a Sorptionstrockenvorraum.
  • the invention further relates to a method for operating a dishwasher with at least one partial program section "drying", wherein in this part program section of a fan air from a washing container of the dishwasher and / or ambient air is passed through a sorption column with reversibly dehydratable material in the washing and the air moisture is removed during the passage.
  • Conventional dishwashing machines are known to have a rinsing process whose program sequence generally consists of at least one partial program step "pre-rinsing", one sub-program step “cleaning”, at least one sub-program step “intermediate rinsing", one sub-program step "rinsing” and one sub-program step “drying”.
  • pre-rinsing partial program step
  • cleaning at least one sub-program step "intermediate rinsing”
  • a further disadvantage is that, by discharging the water vapor produced during the regeneration of the reversibly dehydratable material to the outside, damage to the surrounding Kitchen furniture can not be excluded.
  • the regeneration is associated with an additional energy requirement, which is incurred in addition to the energy required during the sub-program steps.
  • the Applicant discloses a dishwasher with a rinsing container and devices for rinsing crockery by means of rinsing, which has a sorptionskolonne containing air-conducting, reversibly dehydratable material containing the rinsing, wherein the sorption on the one hand for drying the dishes and on the other hand for the desorption of the sorption used thermal energy Heating the rinsing liquor and / or the dishes located in the washing container is at least partially used.
  • the DE 100 58 188 A1 uses a drying fan with an adjustable speed for drying dishes.
  • the mode of operation is based on the fact that the humid air in the rinsing container is blown out of the rinsing container via a ventilation opening during a partial program section "drying" by means of the drying blower.
  • the drying fan is therefore used solely for the removal of moisture-laden air, u. U. means of admixing fresh air to avoid vapor formation, but not to introduce this air in any kind of additional container or for the return of air in the dishwasher.
  • the DE 36 26 887 A1 discloses a dishwashing machine with a sorption drying device and with a fan. It is clear after Sp. 5, Z. 29 ff., That the regeneration phase of the sorption "after completion of the drying process" is performed, which leads in each case to a significant program extension with high energy expenditure.
  • two containers with adsorptive desiccant have to be provided in order to reduce the overall time in order to reduce the time required. However, this increases the space requirements and design effort quite considerably.
  • a device for drying dishes in a domestic dishwasher in which the rinsing liquor is heated by a heater disposed outside the washing, preferably an electric water heater, wherein a largely closed drying system is provided in the air from the washing through a through Heating regenerable drying device and circulated from this back into the washing.
  • the drying device consists of a dry container in thermal contact with the heater, which is filled with a moisture adsorbing desiccant.
  • the connection of the drying container with the heater already present for heating the rinsing liquor results in an immediate operational readiness of the drying apparatus after the rinsing process has ended.
  • the desiccant is hereby placed at least partly as a jacket around the heating elements of the heater, so that the desiccant can be heated in the drying container during each heating process and thus dried.
  • the drying container is formed as a double-walled hollow cylinder, in which the dry material is stored.
  • the arrangement of the inlet and outlet ports for connection to the closed air system takes place in a diagonally opposite arrangement. This results in the disadvantage of a relatively high flow resistance, so that provided for promoting the air flow fan must be operated with very high power. This is negative in terms of noise and energy consumption noticeable.
  • the desorption is time consuming and can also lead to local overheating of the desiccant and thus to its irreversible damage.
  • the desorption is also difficult because the heater is located in the center of the double-walled hollow cylinder and a radial propagation of the heat to the desiccant close to the outer hollow cylinder wall is hardly possible due to the axially flowing air flow.
  • the object of the present invention is therefore to provide a method for operating a dishwasher and a dishwasher, with which a shortening of the duration of a washing program with several partial program steps is possible.
  • the passage of air through a continuously operable with a variable speed fan wherein the speed of the blower is set according to a desired period of the part program step.
  • a dishwasher can be operated during the partial program step with rinsing liquor to be heated with a constant, low and thus noise-optimized speed.
  • Such a time-reduced wash program is accompanied in this case with an increased operating noise. It is therefore advantageous if the speed of the fan in several stages by an operating element of the dishwasher is selectable. In other words, a function may be provided in the operating element of the dishwasher, which allows a user to actively select a "quick-flushing program", wherein the user then deliberately decides for a concomitant increased noise development.
  • the air is heated by condensation heat during the passage of the sorption column and, if necessary, additionally heated by an electric heating element. This achieves that high-temperature air is introduced into the washing compartment of the dishwasher, which increases its moisture absorption capacity, so that the duration of the partial program step "drying" can be reduced.
  • the ware to be treated is stored in a partial program step which runs before the partial program step "drying", e.g. Rinse thoroughly, heated with rinse water to be heated.
  • a dishwasher according to the invention has the same advantages as explained in connection with the above method.
  • a dishwasher designed according to the invention, in particular domestic dishwasher, with a rinsing container and devices for rinsing ware by rinsing liquor and with a Sorptionstrockenvorraum, this having an air-connected with the rinse container, reversibly dehydratable material containing sorbent column, wherein the sorbent on the one hand for drying the Dishes and on the other hand, the heat energy used for desorption of the sorbent column is used to heat the rinsing tank located in the rinsing and / or Spülguts, a blower of Sorptionstrockenvortechnisch is speed controlled by a main control unit of the dishwasher.
  • the dishwasher can, in principle, as in the DE 103 53 774.0 the applicant described, whose content is included in this application, where appropriate, added.
  • the machine described here is distinguished by the control and operation of the sorption drying device, in particular the blower, which is designed with speed controllable for controlling the drying time.
  • air from the rinsing tank and / or from the ambient air is passed through the sorption column and into the rinsing tank during a partial program step with rinsing liquor to be heated, preferably during the "drying" partial program step.
  • the rinsing container has an outlet with a line to the sorption column, wherein the line preferably has a shut-off valve and then in the flow direction preferably via an inlet valve to the ambient air and the rinse tank has an inlet with a line from the sorption column, wherein the line to the sorption column, the fan is arranged which at least temporarily introduces at least a portion of the air in the washing or from the ambient air of the sorption column.
  • a preferably closed air system an exchange of polluted air from the environment is completely excluded, whereby a scrubanschmutzung the treated items is prevented.
  • the blower is easy to control, so that the use of the sorption column and thus the drying process can be precisely controlled.
  • a preferably electric heating element is arranged for desorption of the reversibly dehydratable material and the heating of the air conducted into the washing compartment. This is preferably arranged in the reversibly dehydratable material or in the line to the sorption column.
  • blower of the sorption drying device can be selected steplessly or in several stages by an operating element of the dishwasher.
  • the inventive method for operating a dishwasher with at least one partial program step with rinsing liquor to be heated to a nominal temperature and / or at least one partial program step "drying” is carried out in the illustrated embodiment in a dishwasher, which schematically, as in DE 103 53 774 and / or the 103 53 775 the applicant described, is constructed.
  • a dishwasher is known to have dishwashing processes whose program sequence generally consists of at least one partial program step "prewash” V, one partial program step “cleaning” R, at least one partial program step “intermediate flushing” Z, one partial program step "final rinse” K and one partial program step "drying" T.
  • the drying in the embodiment as in DE 103 53 774 and / or the DE 103 53 775 described, executed.
  • the typical temperature profile of the rinsing liquor is shown during these partial program steps, wherein the figure represents both the operation in a conventional dishwasher and an operation according to the inventive method.
  • partial program steps "pre-wash” V and “intermediate rinse” Z are of minor importance for the inventive methods, so that they are described in the following description will not be considered in detail.
  • the rinsing liquor is usually heated to a nominal temperature T nenn to achieve the desired cleaning effect.
  • the desorption ie the heating of the reversibly dehydratable material also takes place during the partial program step "cleaning" R instead.
  • a conventional heating e.g. a water heater
  • a water heater for heating the rinsing liquor, a conventional heating, e.g. a water heater, to be used. It is also conceivable to dispense with such a “water heater” and to use only the necessary energy for desorption.
  • an (air) heater arranged in the sorption drying device which comprises the reversibly dehydratable material, e.g. Zeolite, heated to a high temperature.
  • air is removed from a rinse tank, e.g. with an outlet, passed through a sorption column and then back into the rinse tank via an inlet, wherein the air is heated while passing through the heater.
  • the air is sucked out of the washing container by means of a blower and forced through the sorption column.
  • the hot water vapor emerging from the sorption column and the now heated air enter the rinsing tank through the inlet already mentioned above and there they encounter the circulated treatment or rinsing liquor and / or the dishes which are heated.
  • the sorption drying device is operated only to the point until the reversibly dehydratable material is completely desorbed, ie dehumidified (section A in the figure). In the embodiment shown in the figure, this state would be reached at a time t a , at which the rinsing liquor and / or the material to be treated has reached a temperature T Des . This temperature is typically below to be achieved nominal temperature T nom. To bridge this temperature difference, the electric heating element and the blower of the sorption drying device continue to operate and hot air in the Driven rinse container until the circulated rinsing liquor and / or the material to be treated reaches the desired nominal temperature (Section B). This state is achieved with appropriate dimensioning of the sorption drying device, in particular the power of the heater, the speed of the fan and the arrangement and the geometry of the sorption column at a time t b .
  • an additional heating can be provided, which the rinsing liquor during the section A and / or during the section to increase the temperature of T Des is operated on T nenn , so that the nominal temperature T nenn already reached at a time t c (Section C).
  • the additional heating can optionally be designed as a water heater, for example as a water heater, or as inserted into the air circulation air heater. In both cases, the additional heating can be dimensioned such that only a lower heating power needs to be made available, which is able to bridge the missing temperature difference between T des and T nenn .
  • the speed of the fan of the sorption during the part program step can also be provided to increase "cleaning" R, in order to achieve a further reduction in the time taken to reach the nominal temperature T nom.
  • This could be made preselectable for a user of the dishwasher, for example via an operating element.
  • the drying of the items to be washed is carried out in conventional dishwashers by the so-called self-heat drying in the partial program steps "rinsing” and “drying” (Section 1).
  • the rinsing liquor is in the Partial program step “rinsing” heated, whereby the hot rinsed wash ware dries by the built-up self-heat of the dishes during the drying process by itself.
  • the rinsing liquor is therefore heated to the temperature T K in the partial program step "rinsing" and applied to the items to be washed by means of spraying.
  • An additional heating of the air with a supplementary heating in the sub-program step "drying" on the heating with the sorbent addition and thus eg the dishes in dishwashers is usually not required because the released in the sorption heat energy is sufficient, the air at high temperatures, eg 70 ° C, warm up.
  • the sorption column itself is heated by the heat of condensation to temperatures of up to 160 ° C, for example.
  • An acceleration of the drying process which takes place in conventional dishwashers via a time program control and continues until the time t 1 , can be realized by providing a continuously or in several stages speed-controlled fan in the Sorptionstrockenvorraum. By increasing the speed of the adsorption process is accelerated, resulting in a shortening of the drying time.

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  • Washing And Drying Of Tableware (AREA)

Claims (13)

  1. Procédé de fonctionnement d'un lave-vaisselle, comprenant au moins une section de programme partielle « Séchage » (T), de l'air provenant d'un réservoir de lavage du lave-vaisselle et/ou de l'air ambiant étant guidé(s) dans le réservoir de lavage, pendant cette section de programme partielle (T), par un ventilateur à travers une colonne de sorption munie de matériau réversiblement déshydrogénable et de l'humidité étant extraite de l'air pendant le guidage, et comprenant une étape de programme partielle « Nettoyage » (R), de l'air provenant du réservoir de lavage du lave-vaisselle et/ou de l'air ambiant étant guidé(s) dans le réservoir de lavage par le ventilateur, pendant cette étape de programme partielle (R), à travers la colonne de sorption munie de matériau réversiblement déshydrogénable afin de désorber la colonne de sorption, caractérisé en ce que différentes vitesses de rotation sont ménagées pour le ventilateur, le ventilateur fonctionnant selon une commande principale du lave-vaisselle avec respectivement au moins une des différentes vitesses de rotation pendant la section de programme partielle « Séchage » (T) et pendant l'étape de programme partielle « Lavage » (R).
  2. Procédé selon la revendication 1, caractérisé en ce que le guidage de l'air est réalisé au moyen d'un ventilateur pouvant fonctionner progressivement avec une vitesse de rotation variable, la vitesse de rotation du ventilateur étant fixée de manière correspondant à une durée souhaitée de l'étape de programme partielle « Séchage » (T).
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que la vitesse de rotation est présélectionnable par un utilisateur du lave-vaisselle.
  4. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'air est échauffé par chaleur de condensation pendant le passage de la colonne de sorption et en ce qu'en cas de besoin, il est échauffé en plus par un élément de chauffage électrique.
  5. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que les objets à traiter sont échauffés avec la flotte de lavage pendant une étape de programme partielle « Rinçage » (K) se déroulant avant l'étape de programme partielle « Séchage » (T).
  6. Lave-vaisselle comprenant un réservoir de lavage et des dispositifs destinés à laver des objets à laver au moyen de la flotte de lavage ainsi qu'un dispositif de séchage par sorption, celui-ci présentant une colonne de sorption reliée au réservoir de lavage en guidant l'air et contenant un matériau réversiblement déshydrogénable, la colonne de sorption, d'une part, étant utilisée pour le séchage de la vaisselle pendant au moins une section de programme partielle « Séchage » (T) et, d'autre part, l'énergie thermique utilisée pour la désorption de la colonne de sorption étant utilisée pendant au moins une étape de programme partielle « Nettoyage » (R) pour échauffer la flotte de lavage se trouvant dans le réservoir de lavage et/ou les objets à laver, caractérisé en ce qu'un ventilateur du dispositif de séchage par sorption est réalisé par une unité de commande principale du lave-vaisselle avec réglage de la vitesse de rotation, différentes vitesses de rotation étant ménagées pour le ventilateur et le ventilateur fonctionnant selon une commande principale du lave-vaisselle avec respectivement une des différentes vitesses de rotation pendant la section de programme partielle « Séchage » (T) et pendant l'étape de programme partielle « Nettoyage » (R).
  7. Lave-vaisselle selon la revendication 6, caractérisé en ce que de l'air provenant du réservoir de lavage et/ou de l'air ambiant peu(ven)t être guidé(s) à travers la colonne de sorption et dans le réservoir de lavage pendant une étape de programme partielle avec de la flotte de lavage à échauffer, de préférence pendant l'étape de programme partielle « Séchage ».
  8. Lave-vaisselle selon la revendication 6 ou 7, caractérisé en ce que le réservoir de lavage présente une sortie munie d'une conduite menant vers la colonne de sorption, la conduite disposant de préférence d'une soupape d'arrêt et, de manière suivante dans le sens d'écoulement, de préférence d'une soupape d'entrée menant vers l'air ambiant et en ce que le réservoir de lavage présente une entrée munie d'une conduite de la colonne de sorption, le ventilateur étant disposé dans la conduite menant vers la colonne de sorption, par l'intermédiaire duquel au moins une partie de l'air présent dans le réservoir de lavage ou provenant de l'air ambiant peut être amenée à la colonne de sorption au moins par moments.
  9. Lave-vaisselle selon l'une quelconque des revendications 6 à 8, caractérisé en ce que de préférence un élément de chauffage électrique est disposé pour la désorption du matériau réversiblement déshydrogénable et pour l'échauffement de l'air mené dans l'espace de lavage.
  10. Lave-vaisselle selon la revendication 9, caractérisé en ce que l'élément de chauffage est disposé dans le matériau réversiblement déshydrogénable ou dans la conduite menant vers la colonne de sorption.
  11. Lave-vaisselle selon la revendication 10, caractérisé en ce que la vitesse de rotation du ventilateur est sélectionnable progressivement ou en plusieurs échelons au moyen d'un élément de commande du lave-vaisselle.
  12. Lave-vaisselle selon l'une quelconque des revendications 6 à 11, caractérisé en ce que l'énergie thermique utilisée pour la désorption peut être stockée dans un accumulateur de chaleur, par ex. un accumulateur latent, avant d'être utilisée, pour l'échauffement de la flotte de lavage et/ou des objets à laver.
  13. Lave-vaisselle selon l'une quelconque des revendications 6 à 12, caractérisé en ce qu'un procédé selon l'une quelconque des revendications 1 à 5 peut être exécuté.
EP05819348.3A 2004-12-09 2005-12-06 Lave-vaisselle comprenant un dispositif de sechage par sorption et procede pour le faire fonctionner Active EP1827199B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05819348T PL1827199T3 (pl) 2004-12-09 2005-12-06 Zmywarka do naczyń z zespołem suszenia sorpcyjnego i sposób jej eksploatacji

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102004059422 2004-12-09
DE102005004092A DE102005004092A1 (de) 2004-12-09 2005-01-28 Geschirrspülmaschine mit einer Sorptionstrockenvorrichtung und Verfahren zum Betreiben derselben
PCT/EP2005/056533 WO2006061388A1 (fr) 2004-12-09 2005-12-06 Lave-vaisselle comprenant un dispositif de sechage par sorption et procede pour le faire fonctionner

Publications (2)

Publication Number Publication Date
EP1827199A1 EP1827199A1 (fr) 2007-09-05
EP1827199B1 true EP1827199B1 (fr) 2013-07-31

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EP05819348.3A Active EP1827199B1 (fr) 2004-12-09 2005-12-06 Lave-vaisselle comprenant un dispositif de sechage par sorption et procede pour le faire fonctionner

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Country Link
US (2) US20080083433A1 (fr)
EP (1) EP1827199B1 (fr)
JP (1) JP2008522693A (fr)
KR (1) KR20070101837A (fr)
AU (1) AU2005313321B2 (fr)
BR (1) BRPI0518594A2 (fr)
DE (1) DE102005004092A1 (fr)
ES (1) ES2425866T3 (fr)
PL (1) PL1827199T3 (fr)
RU (1) RU2404701C2 (fr)
WO (1) WO2006061388A1 (fr)

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EP2328455B1 (fr) * 2008-08-27 2019-04-10 BSH Hausgeräte GmbH Procédé de fonctionnement d'un lave-vaisselle
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EP3812851B1 (fr) * 2019-10-25 2024-02-21 Henkel AG & Co. KGaA Procédé et système de réglage de paramètres d'un cycle de traitement

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JP2008522693A (ja) 2008-07-03
RU2404701C2 (ru) 2010-11-27
WO2006061388A1 (fr) 2006-06-15
US20120234354A1 (en) 2012-09-20
DE102005004092A1 (de) 2006-06-14
PL1827199T3 (pl) 2013-12-31
EP1827199A1 (fr) 2007-09-05
AU2005313321B2 (en) 2011-02-17
US20080083433A1 (en) 2008-04-10
US9186037B2 (en) 2015-11-17
KR20070101837A (ko) 2007-10-17
RU2007119289A (ru) 2009-01-20
BRPI0518594A2 (pt) 2008-11-25
ES2425866T3 (es) 2013-10-17
AU2005313321A1 (en) 2006-06-15

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