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
  • A47L15/0013—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
  • 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
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
  • D06F58/00—Domestic laundry dryers
  • D06F58/20—General details of domestic laundry dryers 
• • 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
  • 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
  • A47L2501/10—Air circulation, e.g. air intake or venting 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
  • 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
  • A47L2501/34—Change machine operation from normal operational mode into special mode, e.g. service mode, resin regeneration mode, sterilizing mode, steam mode, odour eliminating mode or special cleaning mode to clean the hydraulic circuit
• • 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
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
  • D06F58/00—Domestic laundry dryers
  • D06F58/20—General details of domestic laundry dryers 
  • D06F58/24—Condensing arrangements

Definitions

• the invention relates to a method for operating a device with at least one partial program step "drying", as e.g. in tumble dryers, dishwashers, dish dryers, shoe dryers, etc. is used.
• the items to be washed can be dried by self-heat drying if the rinsing liquid is heated in a rinse-out subprogram step and the hot, rinsed items are automatically dried by the self-heat of the item to be washed during the drying process.
• rinsing usually from 65 ° C to 75 ° C is achieved that a sufficiently large amount of heat is transferred to the items to be washed, so that the water adhering to the ware by the heat stored in the items to be washed evaporated.
• a separate heat source e.g. a hot air blower, used to heat the humid air mixture during the drying process, so that the air in the rinse tank can absorb a larger amount of water.
• a disadvantage of the heating systems described above according to the prior art described above is that the heating of the rinsing liquid is associated with a high energy requirement and the required heat energy must be regenerated for each heating phase by means of the electrical heating elements.
• the known heating systems have the disadvantage that the heating of the rinsing liquid in the partial program step “rinse" and the operations in the sub-program step “drying" are themselves associated with a high energy demand and the required heat energy is lost after the drying process.
• Object of the present invention is therefore to provide a method by which it is possible to operate devices of the type mentioned as economically as possible to dry the material to be dried efficiently and to keep the associated energy consumption as low as possible.
• the at least one partial program step “drying” air is passed from a treatment space and / or from ambient air through a sorption column and into the treatment space, wherein the sorption column contains reversibly dehydratable material and deprives the air of moisture during the passage.
• the air is heated by heat of condensation during the passage of the sorption column and, if necessary, additionally heated by a heater.
• air is passed from a treatment space and / or from the ambient air through the sorption column and into the treatment space and heated during the passage.
• the reversibly dehydratable material for desorption is heated to very high temperatures, for which heat energy is necessary.
• the stored liquid emerges as hot water vapor.
• the water vapor is preferably passed with an air flow in the treatment room of the device and thus the air in the treatment room is heated and thereby the treatment liquid, for. B. the rinsing liquor and / or the good to be cleaned, z. B. heated the dishes with.
• the air passed through cools down, as a result of which the water vapor contained in it completely or partially condenses. This is preferably done as a closed air circuit.
• the introduction of the hot water vapor and the heated air into the treatment chamber during a partial program step with the treatment liquid to be heated or possibly already heated is largely sufficient to sufficiently heat the treatment liquid.
• the passage of the air is carried out during a program sub-step with treatment liquid to be heated.
• air is passed through the sorbent column and heated and the air is passed through a heat storage for cooling and subsequently air for heating through the heat storage and into the treatment chamber, to temporarily store the heat used for desorption in the heat storage ,
• the sorption column or the air in a line to the sorption column is heated by a heater for desorption.
• the treatment liquid and / or the material to be treated is heated by the heated air passed through and desorbed Moisture from the sorption in the treatment room or the heat storage at least partially delivered.
• the inventive method for operating a device with at least one partial program step "drying” is performed in the illustrated embodiment in a dishwasher.
• a dishwasher is 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”.
• air is passed from a treatment space through a sorption column and then preferably back into the treatment space.
• the treatment space of the dishwasher for this purpose-the washing container- is equipped with an outlet in the upper region of the washing container. From this outlet, an air line leads to a fan and from the fan to the sorption column.
• This sorption column contains reversibly dehydratable material which extracts moisture from the air during the passage and is known to be heated and thus also heats the air which has passed through it. In addition to this warming effect, it is also possible to heat the air additionally with a heater.
• a further air line leads from the sorption column to an inlet located in the lower region of the washing container.
• the heated air introduced into the purge bin is completely dry and has high moisture absorption capacity. It rises in the washing up and takes up the residual moisture on the material to be treated - the items to be washed. It is now, as already described above, fed back to the sorption column.
• reversibly dehydratable material preferably does not require heating of the material to be treated, e.g. for dishwashers in the partial program step "rinsing". This means a significant energy saving.
• heating the air By heating the air, its moisture absorption capacity is increased with each passing through the sorption column, which leads to the improvement of the drying result and to the shortening of the drying time.
• an exchange of polluted air from the environment is completely excluded, whereby a scrubanschmutzung the treated material is prevented.
• the reversibly dehydratable material is known to have a limited fluid holding capacity. To make it reusable, a desorption is necessary in which the reversibly dehydratable material is heated to a high temperature and the liquid then emerges as vapor.
• the desorption of the reversibly dehydratable material is preferably carried out during a partial program step with treatment liquid to be heated.
• the desorption of the reversibly dehydratable material is carried out during a partial program step "cleaning" and / or "pre-rinsing", in which the items to be washed are treated with heated treatment liquid rinse liquor in a dishwashing machine.
• a z. B. operated in the sorption column heating, which heats the reversibly dehydratable material to a high temperature.
• air is sucked out of the washing container during a partial program step "cleaning" by means of the above-mentioned fan and forced through the sorption column.
• the hot steam 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 rinsing liquor and / or crockery which is thereby heated.
• the introduction of the hot water vapor and the heated air into the treatment chamber during a partial program step with the treatment liquid to be heated or possibly already heated is largely sufficient to adequately heat the treatment liquid and / or the dishes. This can largely account for a further heating and the energy used for desorption can be almost completely used for heating the treatment liquid (rinsing liquor) and / or the dishes except for the low energy required to overcome the binding forces between water and reversibly dehydratable material , Furthermore, an efficient cleaning of the material to be treated is guaranteed in addition to the energy savings.
• the desorption of the reversibly dehydratable material is not carried out during a partial program step with treatment liquid to be heated, but at any other time by the energy released during desorption in a heat storage, for. B. with a liquefied at high heat of fusion medium or a latent storage, is cached, and will give as needed to be heated to a treatment liquid and / or the dishes.
• This can, for. B. if the thermal energy used for desorption is greater than needed in a part program step, this excess energy can be used advantageously in a later part program step to be heated with treatment liquid.
• the sorption column is - as already described - preferably during a partial program step with the treatment liquid to be heated with a heater to a very high temperature, for. B. 300 ° C, heated, so that the sorbent gives off the absorbed water.
• the Sorptonskolonne heated to high temperatures eg. B. 150 ° -200 ° C, by the heat of condensation of water vapor or moisture.
• the introduced into the washing dry air or the air with steam can reach temperatures that cause damage to the dishes, eg. B. plastic parts, can lead.
• the air inlet temperature in the washing compartment must therefore be lowered so far in a further embodiment with a cooling that no damage occurs.
• this residual water is passed on or around the inlet opening and thereby cooled the air flow.
• the dry and warm air absorbs part of the water, which leads due to the evaporative cooling to cool the air flow.
• a heat exchange takes place through the spray water and the air flow with water vapor at the inlet opening.
• the heating for heating the sorption column for desorption - hereinafter called Heilheizug - has a dishwasher according to the invention in an embodiment not shown via a water heater for the rinsing liquor, if this is not performed on the basis of the present invention.
• a heating is necessary, this can be achieved either with the known from the prior art water heater or with the air heater with the fan on.
• the advantage of heating with the air heating is that in the subsequent part program step "drying" the heat energy stored in the sorption column can be used for drying.
• the fan can be turned on with the air heating off.
• moist air is passed through the sorption, which absorbs the moisture, and heated by the liberated condensation energy sorption column and thus also the air passed through.
• the sorption column is to be interpreted as meaning that even in the partial program step "dry” a good drying result can still be achieved.
• a method is provided with which it is possible to operate devices of the type mentioned as economically as possible, to efficiently dry the material to be dried and to keep the associated energy consumption as low as possible.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Washing And Drying Of Tableware (AREA)
• Drying Of Solid Materials (AREA)

Applications Claiming Priority (3)

Related Parent Applications (2)

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Citations (10)

• 2003
  • 2003-11-18 DE DE10353775A patent/DE10353775A1/de not_active Withdrawn
• 2004
  • 2004-07-05 ES ES04763100.7T patent/ES2602183T3/es not_active Expired - Lifetime
  • 2004-07-05 CN CNA2004800221263A patent/CN1829464A/zh active Pending
  • 2004-07-05 CN CN2011100528678A patent/CN102133081A/zh active Pending
  • 2004-07-05 EP EP16169510.1A patent/EP3085292A1/de not_active Withdrawn
  • 2004-07-05 PL PL04763100T patent/PL1651093T3/pl unknown

Patent Citations (10)

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