EP4194599B1 - Appareil de nettoyage et procédé de traitement de produit à nettoyer - Google Patents

Appareil de nettoyage et procédé de traitement de produit à nettoyer Download PDF

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Publication number
EP4194599B1
EP4194599B1 EP22209020.1A EP22209020A EP4194599B1 EP 4194599 B1 EP4194599 B1 EP 4194599B1 EP 22209020 A EP22209020 A EP 22209020A EP 4194599 B1 EP4194599 B1 EP 4194599B1
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EP
European Patent Office
Prior art keywords
cleaning
container
receiving container
washing solution
pumping
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
EP22209020.1A
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German (de)
English (en)
Other versions
EP4194599C0 (fr
EP4194599A1 (fr
Inventor
Werner Strothoff
Daniel Ebke
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
Original Assignee
Miele und Cie KG
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Publication date
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Publication of EP4194599A1 publication Critical patent/EP4194599A1/fr
Application granted granted Critical
Publication of EP4194599B1 publication Critical patent/EP4194599B1/fr
Publication of EP4194599C0 publication Critical patent/EP4194599C0/fr
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Classifications

    • 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
    • D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
    • D06F35/003—Washing machines, apparatus, or methods not otherwise provided for using electrochemical cells
    • 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
    • A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
    • A47L15/4219—Water recirculation
    • 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
    • A47L15/4236—Arrangements to sterilize or disinfect dishes or washing liquids
    • A47L15/4238—Arrangements to sterilize or disinfect dishes or washing liquids by using electrolytic cells
    • 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
    • A47L15/4291—Recovery arrangements, e.g. for the recovery of energy or water
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/083—Liquid discharge or recirculation arrangements
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/20—Arrangements for water recovery
    • 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
    • A47L2401/34—Other automatic detections
    • 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
    • A47L2501/02—Water discharge, e.g. opening or closure of discharge valve
    • 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
    • A47L2501/03—Water recirculation, e.g. control of distributing valves for redirection of water flow
    • 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
    • A47L2601/06—Electrolysed water
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/10—Filtering arrangements

Definitions

  • the invention relates to a cleaning device and a method for treating items to be cleaned.
  • EP2550389A1 describes a washing machine with electrochemical cells, a method for electrochemically cleaning fibers, detergents for electrochemically cleaning fibers and the fibers cleaned in this way.
  • the invention aims to provide an improved cleaning device, an improved control device and an improved method for treating items to be cleaned.
  • the advantages achieved with the invention are that it creates a cleaning device that can process a wash liquor using an electrochemical cell device. This can reduce water consumption and save energy.
  • a cleaning appliance can be understood as a device for treating items to be cleaned, for example a washing machine or a washer-dryer. Items to be cleaned can be understood as textiles, for example, which can be treated in a cleaning container. Alternatively, the cleaning appliance can be a dishwasher.
  • a cleaning container can be a washing drum or a rinsing chamber of the cleaning appliance. The cleaning container can have an inlet and an outlet for a washing solution.
  • a washing solution can be a cleaning liquid with which the items to be cleaned can be treated.
  • a receiving container can be a container for receiving the washing solution. The receiving container can be shaped to hold a sufficient amount of washing solution required for a cleaning process. By pumping the washing solution back into the receiving container after a cleaning process, a closed system can be realized.
  • An electrochemical cell device can be an electrochemical cell consisting of two electrodes and an electrolyte (the wash liquor, which is pumped between the electrodes for treatment, serves as the electrolyte). More specifically, it can be boron-doped diamond electrodes. A boron-doped diamond electrode can form hydroxyl radicals. The resulting hydroxyl radicals can be used for wastewater treatment. For the treatment of the wash liquor using the electrochemical cell device, hydroxyl radicals (OH radicals) are required, which, due to their high oxidation potential of 2.8 volts, can oxidatively degrade almost all organic pollutants. The OH radicals can be generated directly from water at boron-doped diamond electrodes. The boron-doped diamond electrode has special material properties that other known electrode materials do not have.
  • a pumping device can be a device for pumping the wash liquor, whereby the pumping device can have one or more pumps.
  • the approach presented here can reduce the amount of water used in wash cycles. Adequate rinsing of detergents can be achieved, especially in rinse cycles. Detergent residues on clothing can be avoided. With the approach presented here, only the amount of water that is removed with the laundry is used per wash cycle. With a 4 kilogram load and a residual moisture content of 50%, this is only 2 kilograms of water. The residual water can be recovered through a drying process and fed into the recovery tank, which can also be referred to as the water storage tank. A stacked installation of the washing machine and dryer can be advantageous here. Water-soluble dirt and detergent components can be broken down safely and in an environmentally friendly manner. Rinsing effects can be achieved that cannot be achieved with conventional rinsing processes.
  • a chemical oxygen demand value of 2000 milligrams/liter in 15 liters of rinse liquor can be completely broken down under ideal conditions.
  • the release of microplastics into the environment is avoided because no wastewater is generated.
  • the rinsing process can be stopped when a defined end value has been reached. This end value can be set lower for allergy sufferers, for example.
  • a washing machine requires neither a water connection nor a wastewater connection and can therefore be installed independently.
  • the cleaning tank, the pumping device, and the electrochemical cell device can be arranged inside the housing.
  • the receiving tank can be arranged inside or outside the housing. This allows for a compact arrangement of the components within the housing. Arranging the receiving tank outside the housing offers the advantage that the receiving tank can be easily replaced and filled with a wash solution.
  • the at least one electrochemical cell device can be formed as a boron-doped diamond electrode. This allows the creation of a high-quality electrode material.
  • a boron-doped diamond electrode can form hydroxyl radicals.
  • the hydroxyl radicals are formed by water electrolysis. The produced hydroxyl radicals can be used for wastewater treatment. Hydroxyl radicals cause "cold combustion" of organic substances. This is possible with all organic Compounds dissolved in water. This comprehensive range of effects is due to the high oxidation potential of the hydroxyl radicals, which trigger this material transformation with the highest current efficiencies.
  • Hydroxyl radicals are required for the treatment of the wash liquor; due to their high oxidation potential of 2.8 volts, they can oxidatively degrade almost all organic pollutants.
  • the OH radicals are generated directly from water at boron-doped diamond electrodes.
  • the boron-doped diamond electrode has special material properties that other known electrode materials do not have. For example, OH radicals are only generated at boron-doped diamond electrodes, without oxygen being formed at the anode. This is due to the high overvoltage of the boron-doped diamond electrode of 2.8 volts compared to the standard hydrogen electrode for the decomposition of water.
  • the cleaning device can include a filter unit, which can be arranged between the outlet of the cleaning tank and the pump. This offers the advantage of removing coarse dirt from the wash solution before the wash solution is pumped into the line by the pumping device. This can prevent the pumping device from clogging.
  • the cleaning device comprises a line configured to connect the pumping device to an inlet of the cleaning tank.
  • the at least one electrochemical cell device can be arranged on the line.
  • the arrangement of the electrochemical cell device on the line offers the advantage that the wash liquor can be treated in the line before it enters the cleaning tank.
  • the wash liquor can be treated using the electrochemical cell device during a recirculation process.
  • the control device is designed to provide the pump signal for activating the pumping device for pumping the wash liquor from the receiving tank via the line to the inlet of the cleaning tank at the start of the cleaning program, to provide the pump signal for activating the pumping device for pumping the wash liquor from the outlet via the line to the inlet of the cleaning tank during a recirculation process of the cleaning program, and to provide the pump signal for activating the pumping device for pumping the wash liquor back into the receiving tank at the end of the cleaning program.
  • the pumping device can reliably pump the wash liquor from the receiving tank into the cleaning tank and, after the cleaning process has ended, back into the receiving tank.
  • the control device can be designed to generate the cell signal for activating the cell device for processing during the flooding process of the cleaning program. to provide the wash liquor.
  • the cell device can be located on the line. Activating the cell device allows the wash liquor to be treated.
  • control device is designed to provide the cell signal for shutting down the cell device after the flushing process of the cleaning program and after reaching a predefined cell value. This allows energy to be saved.
  • the control device can be configured to provide a dosing signal to activate a dosing device for dosing a cleaning agent at the start of the cleaning program. This offers the advantage that the dosing of the cleaning agent can be done automatically. This can prevent overdosing or underdosing of the cleaning agent by the user. Automatic dosing of the cleaning agent can increase user satisfaction and improve the cleaning result.
  • the cleaning device can have a further receiving container, wherein the pumping device can be designed to pump the wash liquor from the outlet of the cleaning container into the further receiving container and from the further receiving container into the receiving container.
  • the electrochemical cell device or a further electrochemical cell device can be arranged on a supply line for supplying the wash liquor into the further receiving container or on a discharge line for discharging the wash liquor from the further receiving container. This allows the wash liquor to be processed in the further receiving container. This avoids extending the duration of the cleaning program because the processing of the wash liquor is carried out outside the cleaning device.
  • control device can be designed to provide the pump signal for activating the pumping device for pumping the washing liquor from the outlet of the cleaning container into the further receiving container and from the further receiving container into the receiving container at the end of the cleaning program.
  • the device described here can be used accordingly in connection with a commercial or professional device, for example a medical device, such as a cleaning or disinfection device, a small sterilizer, a large-capacity disinfector or a container washing system.
  • a medical device such as a cleaning or disinfection device, a small sterilizer, a large-capacity disinfector or a container washing system.
  • the approach presented here further provides a control device configured to perform, control, or implement the steps of a variant of a method presented here in corresponding devices.
  • This embodiment of the invention in the form of a control device also allows the problem underlying the invention to be solved quickly and efficiently.
  • the control device can be designed to read in input signals and to determine and provide output signals using the input signals.
  • An input signal can, for example, represent a sensor signal that can be read in via an input interface of the device.
  • An output signal can represent a control signal or a data signal that can be provided at an output interface of the control device.
  • the control device can be designed to determine the output signals using a processing rule implemented in hardware or software.
  • the control device can comprise a logic circuit, an integrated circuit, or a software module and can, for example, be implemented as a discrete component or be comprised of a discrete component.
  • a computer program product or computer program with program code that can be stored on a machine-readable carrier or storage medium such as a semiconductor memory, a hard disk memory or an optical memory. If the program product or program is executed on a computer or a control device, the program product or program can be used to Carrying out, implementing and/or controlling the steps of the method according to one of the embodiments described above.
  • FIG 1 shows a schematic representation of a cleaning appliance 100 according to an exemplary embodiment.
  • the cleaning appliance 100 is embodied as a washing machine.
  • the cleaning appliance 100 is designed to treat items 105 to be cleaned.
  • the cleaning device 100 comprises a cleaning container 110, a receiving container 115, at least one electrochemical cell device 120, a pump device 125, a control device 130, a housing 135, a line 140, optionally a filter unit 145, and optionally a dosing device 155.
  • the pump device 125 is designed to pump wash liquor 150 stored in the receiving container 115 from the receiving container 115 via the line 140 into the receiving container 115. After completion of a cleaning process, the pump device 125 is designed to pump the wash liquor 150 drained from the receiving container 115 back into the receiving container 115.
  • the electrochemical cell device 120 is used to process the wash liquor during the cleaning process and additionally or alternatively at the end of the cleaning program before the wash liquor 150 is pumped back into the receiving container 115.
  • the cleaning container 110, the pumping device 125, and the electrochemical cell device 120 are arranged within the housing 135.
  • the receiving container 115 is also arranged within the housing 135. According to an alternative embodiment, the receiving container 115 is arranged outside the housing 135.
  • the receiving container 115 is configured to hold a wash liquor 150.
  • the receiving container 115 is configured to store sufficient wash liquor 150 to perform a complete cleaning process for cleaning the items to be cleaned 105.
  • the cleaning device 100 does not have a fresh water connection used to supply fresh water during the cleaning program, since sufficient wash liquor 150 is stored in the receiving container 115.
  • the pumping device 125 is designed to pump the wash liquor 150 from the receiving container 115 into the cleaning container 110 at the start of a cleaning program.
  • the pumping device 125 is additionally designed to pump the wash liquor 150 through the electrochemical cell device 120 and to pump the wash liquor 150 back into the receiving container 115 when the cleaning program has ended or is about to end.
  • the pumping device 125 consists, for example, of a pump. Depending on the exemplary embodiment, the pumping device 125 can have at least one further pump.
  • the cleaning container 110 is designed to receive the items to be cleaned 105.
  • the cleaning container 110 has an inlet and an outlet.
  • the pumping device 125 is designed to convey the wash liquor 150 for cleaning the items to be cleaned via the inlet into the cleaning container 110.
  • the wash liquor 150 can be drained from the cleaning container 110 via the outlet.
  • the filter unit 145 is arranged between the outlet of the cleaning container 110 and the pumping device 125.
  • the filter unit 145 is designed to filter coarse dirt from the wash liquor 150 before the wash liquor 150 is pumped back into the receiving container 115 or the cleaning container 110 by the pumping device 125.
  • the line 140 is configured to connect the pump device 125 to the inlet of the cleaning tank 110.
  • the electrochemical cell device 120 is arranged on the line 140. This allows the wash liquor 150 to be treated before the wash liquor 105 enters the cleaning tank 110 via the inlet.
  • the electrochemical cell device 120 is designed to process the wash liquor 150.
  • the electrochemical cell device 120 is, for example, formed as a boron-doped diamond electrode.
  • hydroxyl radicals are generated directly from water at boron-doped diamond electrodes.
  • the produced hydroxyl radicals are used for industrial wastewater treatment. Hydroxyl radicals cause cold combustion of organic substances. This occurs with all organic compounds dissolved in water. The high oxidation potential of the hydroxyl radicals, which trigger this material transformation with the highest current efficiencies, is responsible for this comprehensive range of effects.
  • hydroxyl radicals OH radicals
  • the hydroxyl radicals are generated directly from water at boron-doped diamond electrodes.
  • the boron-doped diamond electrode has special material properties that other known electrode materials do not have. For example, only a boron-doped diamond electrode generates hydroxyl radicals without the formation of oxygen at the anode. This is due to the high overvoltage of the boron-doped diamond electrode of 2.8 volts compared to a standard hydrogen electrode for the decomposition of water.
  • control device 130 functions of the pump device 125 and the cell device 120 are controlled using the control device 130.
  • the control device 130 is configured to provide a pump signal 165, which controls the operation of the pump device 125.
  • control device 130 is configured to provide a cell signal 170, which controls the operation of the cell device 120.
  • the control device 130 is connected to the pump device 125 and the cell device 120 in a signal-transmitting manner.
  • the dosing device 155 is configured to dose a cleaning agent into the wash liquor 150 or directly into the cleaning container 110 in response to a dosing signal 160, which is optionally provided by the control device 130.
  • the control device 130 is connected to the dosing device 155 in a signal-transmitting manner.
  • FIG. 1 The start of a washing process is shown in which the cleaning container 110 of the cleaning device 100 is filled with the washing solution 150.
  • the receiving container 115 is therefore still almost completely filled with the washing solution 150.
  • the pumping device 125 is switched on and pumps the washing solution 150 from the receiving container 115 through the line 140 to the inlet of the cleaning container 110. This moistens the items to be cleaned 105.
  • the washing solution 150 flows through the cell device 120 arranged on the line 150.
  • the cell device 120 is optionally still deactivated, since treatment of the washing solution 150 taken directly from the receiving container 115 is not required.
  • the control device 130 is configured to provide the pump signal 165 to start the cleaning program in order to activate the pumping device 125 to pump the wash liquor 150.
  • the wash liquor 150 is pumped by the pumping device 125 from the receiving container 115 via the line 140 to the inlet of the cleaning container 110.
  • control device 130 is designed to provide the dosing signal 160 to start the cleaning program in order to activate the dosing device 155 for dosing the cleaning agent.
  • Figure 2 shows a schematic representation of a cleaning device 100 according to an embodiment. This is, for example, the device shown in Figure 1 described cleaning device 100 or a similar cleaning device.
  • the pumping device 125 is switched off.
  • a portion of the wash liquor 150 is absorbed by the items to be cleaned 105.
  • a washing process is carried out with a residual moisture content of the items to be cleaned 105 of 200 percent. This means that one kilogram of dry items to be cleaned 105 contains 2 liters of wash liquor 150.
  • Figure 3 shows a schematic representation of a cleaning device 100 according to an embodiment. This is, for example, the device shown in Figure 1 and 2 described cleaning device 100 or a similar cleaning device.
  • the pumping device 125 is activated, for example, to perform a rinsing process. Additional washing liquor 150 is pumped from the receiving tank 115 into the cleaning tank 110.
  • wash liquor 150 exiting the outlet of the cleaning tank 110 is pumped via line 140 to the inlet of the cleaning tank 110 and thus back into the cleaning tank 110.
  • the control device 130 provides the pump signal 165 during the recirculation process of the cleaning program to activate the pumping device 125 for pumping the wash liquor 150.
  • the pumping device 125 pumps the wash liquor 150 from the outlet of the cleaning tank 110 via line 140 to the inlet of the cleaning tank 110.
  • the control device 130 provides the cell signal 170 to activate the cell device 120 for processing the wash liquor 150.
  • the wash liquor 150 is guided through the cell device 120 as it flows through the line 140.
  • the wash liquor 150 is processed.
  • This recirculation process is carried out according to a The embodiment is repeated until a predefined cell value is reached in the cell device 120.
  • the cell value can correspond to a degree of soiling of the wash liquor 150.
  • control device 130 After the rinsing process and/or the recirculation process and, for example, after reaching the predefined cell value, the control device 130 provides the cell signal 170 to switch off the cell device 120 for processing the wash liquor 150. Subsequently, a spinning process and a pumping out of the wash liquor 150 are started, see Figure 4 .
  • Figure 4 shows a schematic representation of a cleaning device 100 according to an embodiment. This is, for example, the device shown in Figures 1 to 3 described cleaning device 100 or a similar cleaning device.
  • the pumping device 125 is activated.
  • the items to be cleaned 105 are spun in the cleaning container 110 until the desired residual moisture level is reached.
  • the spun-out wash liquor 150 is pumped back into the receiving container 125.
  • the control device 130 provides the pumping signal 165 at the end of the cleaning program to activate the pumping device 125 to pump the wash liquor 150.
  • the pumping device 125 pumps the wash liquor 150 from the outlet of the cleaning container 110 back into the receiving container 115.
  • the wash liquor 150 returns to the receiving container 115 in a treated state and can be reused for the next cleaning process.
  • the water consumption of a cleaning appliance per wash cycle is reduced to a maximum of one-third of that of today's cleaning appliance. This means that a typical household load of approximately 4 kilograms of laundry no longer requires 50 liters, but less than 17 liters. Ideally, no more water is required than is removed from the cleaning appliance 100 with the spun-out laundry 105. With a residual moisture content of 50%, this would be 2 liters of water. This could even be recovered in a washer-dryer with heat pump technology. Due to the low water consumption, stand-alone washing machines could also be manufactured that do not require a water inlet and outlet.
  • the cleaning device 100 presented here which can also be referred to as a washing machine or washer-dryer, has a receptacle 115, which can also be referred to as a water tank, which is capable of storing at least twice, but a maximum of ten times, the nominal load of the cleaning device 100. In particular Three to five times the nominal load is preferred.
  • the cleaning device 100 has a pumping device 125, which can also be referred to as a lye circulation system or recirculation for circulating the wash liquor 150, and preferably also a dosing device 155, which can also be referred to as automatic dosing for detergent.
  • an electrochemical cell device 120 with, for example, boron-doped diamond electrodes is integrated into the recirculation circuit downstream of the pumping device 125. These electrodes are capable of performing an "Electrochemical Advanced Oxidation Process - EAOP.” This means completely mineralizing organic water contaminants and thus treating and/or cleaning the wash liquor 150 and removing micro-contaminants such as microplastics.
  • a filter unit 145 is preferably connected upstream of the pumping device 125.
  • An inventive sequence of a cleaning program is as follows: The items to be cleaned 105 are placed in the cleaning container 110, which can also be referred to as a textile treatment chamber.
  • the wash liquor 150 is added via the pump device 125 of the receiving container 115.
  • the circulation pump is then started and the cleaning agent, which can also be referred to as detergent, is metered.
  • the desired moisture content of the items to be cleaned for the cleaning process is then set, followed by the execution of the selected cleaning program.
  • the desired residual moisture content for the rinsing process is then set, and the electrochemical cell device 120 is switched on to clean the wash liquor 150. When a defined end value is reached, the electrochemical cell device 120 is switched off.
  • the circulation pump is then switched off.
  • the wash liquor 150 is pumped out into the receiving container 115, and the items to be cleaned 105 are spun until the desired residual moisture level is reached, while the wash liquor 150 is simultaneously pumped out into the receiving container 115.
  • the cleaning process is then terminated.
  • the items to be cleaned 105 are optionally dried until the desired degree of dryness is reached, while the wash liquor is simultaneously pumped out into the receiving container 115.
  • the items to be cleaned 105 are then removed.
  • Figure 5 shows a flowchart of a method 500 for treating items to be cleaned using a cleaning device according to an exemplary embodiment.
  • the method 500 can be carried out, for example, using a cleaning device and a control device as described with reference to the preceding figures.
  • the method 500 includes a step 505 of activating the pumping device. Step 505 is performed at the beginning of the cleaning program to pump the wash liquor from the receiving tank via the line to the inlet of the cleaning tank.
  • the method 500 also includes a step 510 of activating the cell device. Step 510 is performed during a recirculation process of the cleaning program to prepare the wash liquor.
  • the method 500 includes a step 515 of deactivating the cell device.
  • Step 515 is executed after the recirculation process of the cleaning program and additionally or alternatively after reaching a predefined cell value in order to deactivate the cell device.
  • Method 500 additionally includes a step 520 for activating the pumping device. Step 520 is performed at the end of the cleaning program to pump the wash liquor back into the receiving container.
  • the cleaning device has a drying mode for drying the cleaned items, according to one embodiment, water vapor generated during drying is condensed and the resulting condensate is returned to the receiving container.
  • method 500 is executed when a user selects and starts a cleaning program.
  • Method 500 is executed again when a user selects and starts the cleaning program or another cleaning program at a later time, for example, the next day.
  • it is not necessary to supply the cleaning device with fresh water from an external source for the renewed execution of method 500 since the same wash liquor that was pumped back into the receiving container during the previous execution of method 500 can be used for the renewed execution of method 500.
  • the cleaning device can be operated independently with regard to the required water over a long period of time, for example, over several weeks and/or across a plurality of executed cleaning programs.
  • Figure 6 shows a schematic representation of a cleaning device 100 according to a further embodiment.
  • This is, for example, the device shown in Figure 1 described cleaning device 100 with the difference that the cleaning device 100 has a further receiving container 615.
  • the pumping device 125 is designed in this case to first pump the washing solution into the another receiving container 615.
  • the wash liquor is then pumped from the other receiving container 615 via another electrochemical cell device 620 into the receiving container 115 and is thereby treated.
  • the treated wash liquor stored in the receiving container 115 is removed from the receiving container 115 and used for cleaning as described with reference to the preceding figures.
  • the further electrochemical cell device 620 is arranged on a supply line for supplying the wash liquor to the further receiving container 615 or on a discharge line for discharging the wash liquor from the further receiving container 615 into the receiving container 115.
  • the pump signal 165 is provided to activate the pump device 125 in order to pump the wash liquor from the outlet of the cleaning container 110 into the further receiving container 615 and to pump the wash liquor from the further receiving container 615 into the receiving container 115.
  • the pump device 125 has, for example, two separate pumps.
  • the cleaning process can be carried out separately from the water treatment.
  • the washing liquor which can also be referred to as process water
  • the internal or external receiving container 615 which can also be referred to as the process water tank.
  • the washing liquor is fed to the further electrochemical cell device 620 for cleaning.
  • the cleaned washing liquor is then pumped back into the receiving container 115, which can also be referred to as the storage container, and is available for the next cleaning process.
  • the downstream water treatment has the advantage that the time required for this is not extended during the cleaning process.
  • the control device 130 is configured, for example, to activate the further electrochemical cell device 620 via a further cell signal 670.
  • the electrochemical cell device 120 can be omitted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Water Supply & Treatment (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Claims (8)

  1. Appareil de nettoyage (100) destiné à traiter un article à nettoyer (105), dans lequel l'appareil de nettoyage (100) présente les caractéristiques suivantes :
    un récipient de nettoyage (110) destiné à recevoir l'article à nettoyer (105), dans lequel le récipient de nettoyage (110) présente une entrée et une sortie pour un bain de lavage (150) ;
    un récipient de réception (115) destiné à recevoir le bain de lavage (150) ;
    au moins un dispositif de cellule électrochimique (120), qui est conçu pour préparer le bain de lavage (150) ;
    un dispositif de pompe (125), dans lequel le dispositif de pompe (125) est conçu pour pomper le bain de lavage (150) du récipient de réception (115) dans le récipient de nettoyage (110), pour pomper le bain de lavage (150) à travers le dispositif de cellule électrochimique (120) et pour pomper le bain de lavage (150) en retour dans le récipient de réception (115) ;
    un équipement de commande (130) conçu pour fournir un signal de pompe (165) pour la commande d'un fonctionnement du dispositif de pompe (125) et un signal de cellule (170) pour la commande d'un fonctionnement du dispositif de cellule (120) pour la commande du déroulement d'un programme de nettoyage ; et
    un conduit (140) qui est conçu pour relier le dispositif de pompe (125) à l'entrée du récipient de nettoyage (110), dans lequel l'au moins un dispositif de cellule électrochimique (120) est disposé sur le conduit (140), dans lequel
    l'équipement de commande (130) est conçu pour fournir, au démarrage du programme de nettoyage, un signal de pompe (165) pour l'activation du dispositif de pompe (125) pour le pompage du bain de lavage (150) depuis le récipient de réception (115) par l'intermédiaire de la conduite (140) vers l'entrée du récipient de nettoyage (110), pour fournir un signal de pompe (165) pendant un processus de recirculation du programme de nettoyage pour l'activation du dispositif de pompe (125) pour le pompage du bain de lavage (150) depuis la sortie par l'intermédiaire de la conduite (140) jusqu'à l'entrée du récipient de nettoyage (110), et pour fournir un signal de pompe (165) à la fin du programme de nettoyage pour l'activation du dispositif de pompe (125) pour le pompage du bain de lavage (150) en retour dans le récipient de réception (115), et
    caractérisé en ce
    que l'équipement de commande (130) est conçu pour fournir, après le processus de recirculation du programme de nettoyage et après avoir atteint une valeur de cellule prédéfinie, un signal de cellule (170) pour l'arrêt du dispositif de cellule (120).
  2. Appareil de nettoyage (100) selon la revendication 1, comportant un boîtier (135), dans lequel le récipient de nettoyage (110), le dispositif de pompe (125) et le dispositif de cellule électrochimique (120) sont disposés à l'intérieur du boîtier (135), et dans lequel le récipient de réception (115) est disposé à l'intérieur du boîtier (135) ou à l'extérieur du boîtier (135).
  3. Appareil de nettoyage (100) selon l'une des revendications précédentes, dans lequel l'au moins un dispositif de cellule électrochimique (120) est formé comme une électrode en diamant dopé au bore.
  4. Appareil de nettoyage (100) selon l'une des revendications précédentes, comportant une unité de filtre (145) disposée entre la sortie du réservoir de nettoyage (110) et le dispositif de pompe (125).
  5. Appareil de nettoyage (100) selon la revendication 1, dans lequel l'équipement de commande (130) est conçu pour fournir un signal de cellule (170) pendant le processus de recirculation du programme de nettoyage pour activer le dispositif de cellule (120) pour la préparation du bain de lavage (150).
  6. Appareil de nettoyage (100) selon l'une des revendications précédentes, comportant un autre récipient de réception (615), dans lequel le dispositif de pompe (125) est conçu pour pomper le bain de lavage (150) de la sortie du récipient de nettoyage (110) dans l'autre récipient de réception (615), et de l'autre récipient de réception (615) dans le récipient de réception (115), dans lequel un autre dispositif de cellule électrochimique (620) est disposé sur une conduite d'alimentation pour l'alimentation du bain de lavage (150) dans l'autre récipient de réception (615) ou sur une conduite d'évacuation pour l'évacuation du bain de lavage (150) de l'autre récipient de réception (615).
  7. Appareil de nettoyage (100) selon la revendication 6, dans lequel l'équipement de commande (130) est conçu pour fournir, à la fin du programme de nettoyage, un signal de pompage (165) pour l'activation du dispositif de pompe (125) pour le pompage du bain de lavage (150) depuis la sortie du réservoir de nettoyage (110) dans l'autre réservoir de réception (615) et depuis l'autre réservoir de réception (615) dans le réservoir de réception (115).
  8. Procédé (500) destiné à traiter un article à nettoyer (105) en utilisant un appareil de nettoyage (100) selon l'une des revendications précédentes, dans lequel le procédé présente les étapes suivantes :
    activation (505) du dispositif de pompe (125) pour pomper le bain de lavage (150) depuis le récipient de réception (115) par l'intermédiaire de la conduite (140) jusqu'à l'entrée du récipient de nettoyage (110) au démarrage du programme de nettoyage ;
    activation (510) du dispositif de cellule pour préparer le bain de lavage (150) pendant un processus de recirculation du programme de nettoyage ;
    désactivation (515) du dispositif de cellule pour désactiver le dispositif de cellule après le processus de recirculation du programme de nettoyage et/ou lorsqu'une valeur de cellule prédéfinie est atteinte ; et
    activation (520) du dispositif de pompe (125) pour pomper le bain de lavage (150) en retour dans le récipient de réception (115) à la fin du programme de nettoyage.
EP22209020.1A 2021-12-10 2022-11-23 Appareil de nettoyage et procédé de traitement de produit à nettoyer Active EP4194599B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102021132611.7A DE102021132611A1 (de) 2021-12-10 2021-12-10 Reinigungsgerät, Steuervorrichtung und Verfahren zum Behandeln von Reinigungsgut

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EP4194599B1 true EP4194599B1 (fr) 2025-03-26
EP4194599C0 EP4194599C0 (fr) 2025-03-26

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DE (1) DE102021132611A1 (fr)
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DE102023122608A1 (de) * 2023-08-23 2025-02-27 Miele & Cie. Kg Waschautomat oder Waschtrockner und Verfahren zur Behandlung von Wäsche in einem Waschautomaten oder Waschtrockner

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Publication number Priority date Publication date Assignee Title
IT1213138B (it) * 1984-02-16 1989-12-14 Eurodomestici Ind Riunite Macchina lavastoviglie automatica ad uso domestico con mezzi per produrre una soluzione ossidante di ipoclorito sodic
JP2013524868A (ja) 2010-03-25 2013-06-20 ビーエーエスエフ ソシエタス・ヨーロピア 電気化学的織物洗濯方法
EP2390398A1 (fr) * 2011-07-12 2011-11-30 V-Zug AG Appareil ménager avec dispositif de traitement de l'eau pour le traitement de l'eau de processus à stocker
DE102013224524A1 (de) * 2013-11-29 2015-06-03 BSH Hausgeräte GmbH Wasserführendes Haushaltsgerät mit einer Aufbereitung von gespeichertem Grauwasser

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PL4194599T3 (pl) 2025-06-09
EP4194599C0 (fr) 2025-03-26
ES3020882T3 (en) 2025-05-23
EP4194599A1 (fr) 2023-06-14
DE102021132611A1 (de) 2023-06-15

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