EP4218529A1 - Dispositif de nettoyage de produits à nettoyer - Google Patents

Dispositif de nettoyage de produits à nettoyer Download PDF

Info

Publication number
EP4218529A1
EP4218529A1 EP23020009.9A EP23020009A EP4218529A1 EP 4218529 A1 EP4218529 A1 EP 4218529A1 EP 23020009 A EP23020009 A EP 23020009A EP 4218529 A1 EP4218529 A1 EP 4218529A1
Authority
EP
European Patent Office
Prior art keywords
water
heat
air
refrigerant
fresh water
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23020009.9A
Other languages
German (de)
English (en)
Inventor
Alexander Mlynek
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.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP4218529A1 publication Critical patent/EP4218529A1/fr
Pending legal-status Critical Current

Links

Images

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
    • A47L15/4291—Recovery arrangements, e.g. for the recovery of 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
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4285—Water-heater 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 
    • D06F39/04—Heating 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 
    • D06F39/30—Arrangements for energy 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
    • A47L15/42—Details
    • A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
    • 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

Definitions

  • the present invention relates to a device, in particular a washing machine or dishwasher, for cleaning items to be cleaned, comprising a process chamber which is set up to accommodate items to be cleaned.
  • Washing machines and dishwashers are among the largest consumers of electricity in private households. Since such devices are very widespread in industrialized countries, the cumulative power consumption of all these household devices together accounts for a considerable proportion of the country's total power consumption. Energy-saving household appliances thus make an important contribution to avoiding greenhouse gas emissions and protecting the climate.
  • Water can be heated much more efficiently using electrical energy if a heat pump is used, which extracts heat from a cold heat reservoir in its vicinity and feeds it to the water to be heated as useful heat.
  • the quotient of the thermal energy delivered to the water and the electrical energy used for this is usually referred to as the effective number of a heat pump, or in English as the "coefficient of performance", COP for short.
  • This effective number is ultimately limited by the laws of thermodynamics, which sets the efficiency of Carnot's cycle as the upper limit. This degree of efficiency is lower, the higher the temperature difference between the two heat reservoirs, from the colder part of which the heat pump transfers heat to the warmer part.
  • the effective numbers of real implementations of heat pumps usually remain far below the Carnot limit. With air-water heat pumps, which are increasingly used in building technology and use the outside air as a cold heat reservoir, effective numbers of the order of 3 to 5 are common.
  • a washing machine which uses a water-water heat pump in order to work more energy-efficiently.
  • the heat pump used therein is characterized in that it transfers heat between two heat reservoirs, both of which contain a liquid heat transfer medium.
  • the refrigerant evaporator the refrigerant absorbs heat, which is extracted from a water reservoir, and in the refrigerant condenser, it gives off heat to the process water.
  • the disadvantage of this concept is that the heat capacity of the heat-emitting water reservoir, which is located inside the machine, is limited and this is correspondingly greatly cooled. As a result, the heat pump has to work against an ever-increasing temperature difference, which reduces its effective number.
  • a device for recovering heat from waste water in a washing machine is known. This is based on the fact that the heat from the waste water is at least partially transferred to fresh water, which is used in a subsequent cleaning process. It can be provided, for example, that warm waste water is not initially pumped out of the machine but is stored in a container provided for this purpose inside the machine. As soon as warm water is needed again inside the machine for a cleaning process, the heat content of the stored waste water is used to heat fresh water. Either a heat exchanger or a water-to-water heat pump is used for this.
  • a washer-dryer which uses a common heat pump unit for a washing and a drying process. This works during the washing process Heat pump aggregate as a water-water heat pump by analogy with that from the EP 2 096 203 A1 known washing machine.
  • the heat pump unit acts as an air-to-air heat pump, which alternately cools and heats the process air used to dry the laundry, in line with the design of the heat pump tumble dryers that are commercially available today.
  • Switching valves in the refrigerant circuit are used to select the refrigerant evaporator and refrigerant condenser required for the respective operating mode (washing or drying).
  • a drive motor for a washing machine drum which can be cooled by a cooling device through which a cooling medium flows.
  • the electric heating rod serving to heat the process water is provided with an electronic power throttling.
  • the electrical power consumption of the heating element is regulated in such a way that it can be completely covered by a regenerative power generation system, which is in the same electrical house network as the washing machine or dishwasher.
  • the object of the invention is to provide a device for cleaning items to be cleaned which has a reduced energy consumption compared to the cleaning devices known from the prior art.
  • a device for cleaning items to be cleaned, comprising a process chamber which is designed to accommodate items to be cleaned, and an air-to-water heat pump, the air-to-water heat pump having at least one Has a refrigerant compressor for heating a refrigerant and at least one refrigerant condenser for transferring the heat of the refrigerant to the process water provided for cleaning the items to be cleaned.
  • the device according to the invention can be designed in particular as a household appliance, which is generally known as "white goods".
  • a household appliance usually comprises a housing in which the process chamber can be accommodated, at least one power connection and at least one inflow and at least one Drain, the latter usually being set up to introduce process water into the device or to derive process water from the device.
  • the process chamber can be designed depending on the nature and volume of the items to be cleaned.
  • a cylindrical washing tub of a washing machine or a cuboid rinsing chamber of a dishwasher can be regarded as an example of a corresponding process chamber.
  • the process chamber is set up to be at least partially filled with process water after receiving the items to be cleaned, for example textiles or dishes.
  • a cleaning agent can be added to the process water before filling the process chamber or in the process chamber.
  • an air-water heat pump is provided for heating the process water, which conveys a refrigerant which is in a gaseous state under normal conditions.
  • refrigerants for example 1,1,1,2-tetrafluoroethane (R134a), difluoromethane (R32), propane (R290), isobutane (R600a), or mixtures of fluorinated ones Hydrocarbons, for example R407c, R410a or R404a.
  • the air-to-water heat pump of the device comprises an electrically driven refrigerant compressor, which is designed, for example, as a piston compressor or a scroll compressor, and a refrigerant condenser, in which the compressed refrigerant can give off heat to the process water to be heated and undergoes a phase transition from the gaseous to the liquid state of aggregation.
  • an electrically driven refrigerant compressor which is designed, for example, as a piston compressor or a scroll compressor
  • a refrigerant condenser in which the compressed refrigerant can give off heat to the process water to be heated and undergoes a phase transition from the gaseous to the liquid state of aggregation.
  • the refrigerant condenser In order to transfer the heat generated by the air-to-water heat pump to the process water in the process chamber as efficiently as possible, it can be particularly advantageous for the refrigerant condenser to be in thermal contact with the process chamber.
  • the refrigerant condenser can be arranged in a lower area of the process chamber, so that it is at least partially covered by process water during a cleaning process.
  • the refrigerant condenser which can be designed, for example, as a meandering tubular structure, can in particular be made of a material that has a sufficiently high chemical resistance to the process water and the cleaning agent dissolved therein.
  • the refrigerant condenser can optionally be made of a pliable or flexible material be made to deform in the course of vibrations or other movements that can occur during a cleaning process within the process chamber.
  • the refrigerant condenser can be designed as a flow heater for water in the form of a heat exchanger, through which the process water is conveyed using a pump.
  • the heat exchanger comprises in particular two circuit systems, the refrigerant circulating in a first circuit system and the process water to be heated in a second circuit system.
  • the second circulatory system is set up to convey process water from the process chamber to the heat exchanger and from the heat exchanger into the process chamber.
  • the second circulation system allows process water, which was previously heated via the heat exchanger, to be efficiently pumped through the process chamber, thereby distributing heat evenly in the process chamber.
  • the refrigerant condenser of the air-to-water heat pump which is designed as a heat exchanger, can in particular be arranged outside of the process chamber.
  • An external heat exchanger has the advantage that it is easier to reach for maintenance or repair work and does not have to be removed from the process chamber first.
  • the heat exchanger can be structurally designed in such a way that as little process water as possible remains in the heat exchanger after the heating of the process water has ended. This can be achieved by the heat exchanger having the smallest possible internal volume on the water side or by emptying it after the process water has been heated.
  • the latter can be passive, e.g. by arranging the heat exchanger above the process chamber and allowing the process water to drain automatically under the influence of gravity after a feed pump that pumps the process water through the refrigerant condenser has been switched off, or actively by a feed pump and switching valves taking care of this that the process water is conveyed out of the heat exchanger and further process water is prevented from flowing in.
  • an air pump can also be used, which blows out the remaining process water from the heat exchanger.
  • a vacuum pump can be provided, which evacuates the heat exchanger or lowers the air pressure in it at least below the saturation vapor pressure of water, so that the water vapor produced largely displaces the residual air.
  • a refrigerant condenser designed as a heat exchanger are, for example, a stainless steel plate heat exchanger, which was manufactured from stainless steel sheets by hard soldering with a solder containing copper, or a coaxial tube construction in which an inner tube through which refrigerant flows is coaxially enclosed by a second tube on the outside , whereby the space between the two pipes is traversed by process water.
  • a filter can be installed upstream that retains such substances, for example in the form of a fine-meshed sieve.
  • the air-to-water heat pump may have a pressurized refrigerant circuit through which the refrigerant is pumped.
  • the air-to-water heat pump can also include at least one refrigerant evaporator for evaporating condensed refrigerant and at least one fan for heating evaporated refrigerant with ambient air.
  • the refrigerant evaporator, in which the refrigerant evaporates and thereby absorbs heat, of the air-to-water heat pump can be designed as a heat exchanger through which a fan can convey ambient air.
  • a refrigerant line can be provided within the refrigerant evaporator, which is formed, for example, as a metal tube and is preferably arranged in a meandering shape, wherein the refrigerant line can be thermally conductively connected to a plurality of parallel metal fins.
  • the air routing of the blower can preferably be designed in such a way that the device or the housing of the device is equipped with at least one inlet opening for ambient air, through which ambient air is sucked in, preferably in the area of the front of the device, and with at least one outlet opening, through which the air Flow of the refrigerant evaporator can be blown out again preferably in the bottom area or on the rear or side wall of the device or the housing of the device.
  • the air inlet and air outlet openings can be designed in such a way that there is complete protection against accidental contact for moving components of the fan. Water vapor from the ambient air condensing out in the refrigerant evaporator can be collected in the form of liquid condensed water and either disposed of via a waste water line or a drain of the device or made usable for cleaning processes.
  • the refrigerant circuit can have an expansion valve between the refrigerant condenser and the refrigerant evaporator, which ensures that an adequate pressure gradient is set between these two components of the refrigerant circuit.
  • the expansion valve can be designed as a capillary, but controllable expansion valves, which can be actuated by a mechanical thermostat or an electrical actuator, offer more degrees of freedom in controlling the air-water heat pump.
  • the refrigerant circuit may include a receiver for liquid refrigerant, which is downstream of the refrigerant condenser, and a separator for liquid refrigerant, which is upstream of the refrigerant compressor and prevents incompressible liquid phase getting into an intake line of the refrigerant compressor.
  • the device can be connected to at least one fresh water line, wherein the fresh water can be used as process water for cleaning items to be cleaned and in particular can be supplied to the process chamber.
  • the device according to the invention for storing the fresh water can have at least one fresh water tank.
  • the fresh water tank is advantageously set up to store fresh water and only release it to the process chamber when a cleaning process is imminent or when fresh water is to be heated via the air-to-water heat pump, for example for the forthcoming use as process water.
  • the fresh water tank can in particular have thermal insulation in order to store fresh water therein in a heated state over a longer period of time with little loss.
  • the device according to the invention therefore has a heat exchanger which is set up to transfer heat from the process water heated by the air-water heat pump to ambient air or to fresh water.
  • the heat exchanger can in particular be connected to the device in such a way that heated process water can flow through it following a warm cleaning process, with the corresponding process water also being referred to below as waste water.
  • the heat exchanger can be designed as a water-air heat exchanger which has a plurality of fins and is equipped with a fan, the fan being set up to transfer heat from waste water to the ambient air is to convey ambient air through the heat exchanger.
  • the water-air heat exchanger can be arranged in the form of a flat water pocket, for example on the side walls, on the back or on the front of the device, so that the corresponding outside of the device heats up and heat is released into the ambient air becomes.
  • the outside of the device can advantageously be provided with a coating, for example a radiator paint, which promotes the emission of thermal radiation.
  • the warm waste water a certain amount of time remains in the water bag until its temperature has dropped to room temperature.
  • the device can advantageously be equipped with two waste water pumps or with one waste water pump with downstream switching valves, so that waste water from the process chamber can be pumped either into the heat exchanger or directly into a drain.
  • an additional pump can be provided, which conveys the contents of the water bag to the outlet of the device.
  • the water bag can be designed with an overflow, which is connected to the outflow of the device, so that the cooled waste water can remain in the device until, in the course of a subsequent cleaning process, warm waste water is pumped into the water bag again and the already cooled waste water is pumped through suppresses the overflow.
  • the heat exchanger can be provided as a tank with two separate chambers, the first of which is intended for waste water and the second of which is intended for fresh water, with a partition wall arranged between the first and second chamber being made of a material with good Thermal conductivity can be made and the chamber for waste water can be designed so that it is in good thermal contact with the ambient air.
  • this allows a partial use of the heat from the waste water from a first warm cleaning process for a second cleaning process that follows the first, in that the second chamber is filled with fresh water.
  • This can lead to a heat transfer from warm waste water to the fresh water until the temperatures of the waste water and the fresh water have equalized after a certain period of time.
  • the fresh water from the second chamber that is heated in this way can then be used for the second cleaning process, for which it can then optionally be reheated by the air-water heat pump.
  • warm waste water can also be pumped through a water-water heat exchanger that works according to the countercurrent principle, in which the heat of the waste water can be transferred to fresh tap water.
  • the water-water heat exchanger can in particular be designed and arranged in such a way that the waste water enters a first chamber at its top and exits cooled at its bottom.
  • the fresh water can enter a second chamber at the bottom of the water-water heat exchanger and exit at the top in the heated state.
  • a continuous temperature gradient is set in the vertical direction in the water-water heat exchanger and a heat stratification that is stable against convection is formed under the influence of gravity.
  • the water-water heat exchanger can be used with be provided with a large contact area between the two chambers and be flowed through with low flow rates, so that an efficient heat transfer between fresh water and waste water can take place.
  • the device according to the invention can additionally be equipped with a thermally insulated fresh water tank into which the heated fresh water can flow after passing through the water-water heat exchanger. If a pumping-out process is initiated after a warm cleaning step, two liquid flows with a mass flow that is as identical as possible can be set in motion at the same time. On the one hand, a waste water pump can convey the warm waste water from the process chamber through the water-water heat exchanger into a waste water line of the device. On the other hand, an inflow of fresh water into the device can be initiated. In this case, the fresh water flows through the water-water heat exchanger and then reaches the insulated fresh water tank. If the process chamber is completely emptied by the pumping process, it can be advantageous to remove the residual water from the two chambers of the water-water heat exchanger, for example by pumping or blowing out with air. Additional pumps and valves can be provided for this purpose.
  • the fresh water required for this cannot primarily be obtained from a fresh water supply line of the device, but from the insulated fresh water tank.
  • a feed pump is provided for this purpose, which feeds water from the fresh water tank to the process chamber of the device, it being possible for a flow of water to be passed through a cleaning agent dispensing chamber. If the temperature of the fresh water in the fresh water tank exceeds the setpoint temperature or the process temperature for a subsequent warm cleaning process, cold fresh water from the inlet line can be added in the required ratio. However, if the fresh water temperature in the insulated fresh water tank is too low for the subsequent cleaning process, the process water can be additionally heated using the air-water heat pump, for example.
  • the heated fresh water can be pumped into the process chamber, which has less thermal insulation than the fresh water tank, so that the heat of the fresh water can be released to the ambient air via the process chamber.
  • waste water heat recovery described allows a considerable part of the heating energy of the process water to be saved, especially in the case of warm cleaning processes that follow one another in quick succession, since only the first warm cleaning process requires complete process water heating by the air-water heat pump, while the waste water heat of the each previous warm cleaning process can be used.
  • the refrigerant compressor usually remains in a heated state without the thermal energy contained in it being put to any further use.
  • the device according to the invention can therefore also be set up to transfer heat that occurs as a result of the operation of the refrigerant compressor to process water or to fresh water.
  • the refrigerant compressor can be designed with cooling water ducts or a water pocket, through which process water or fresh water can be conveyed after the air-water heat pump has been switched off, in order to be able to use the residual heat of the refrigerant compressor to heat the corresponding water. It is also conceivable to carry out the flow through the refrigerant compressor while it is in operation.
  • an electric motor which drives, for example, the washing drum of a washing machine or a circulating pump of a dishwasher.
  • the electrical resistance of the motor windings can lead to a dissipation of electrical power within the electric motor.
  • the heat released as a result can be analogous to that heat generated by the operation of the refrigerant compressor can be utilized.
  • the device according to the invention can optionally include a switching device which is set up to allow the air-water heat pump to selectively heat the process water in the process chamber or heat the fresh water in the fresh water tank. If there are no items to be cleaned but the device can still generate heat via the air-water heat pump for a given reason, the device is advantageously able to heat fresh water in the fresh water tank via the switching device. After the fresh water has been sufficiently heated, the switching device can, if desired, enable process water to be heated in the process chamber via the air-water heat pump.
  • the device according to the invention has control electronics for controlling the switching device and temperature sensors for monitoring the water heating.
  • the control electronics can enable a user of the device to select whether the air/water heat pump should heat the process water in the process chamber or whether fresh water in the fresh water tank should be heated.
  • the control electronics of the device can be equipped with a function to activate the air-water heat pump and to heat the fresh water in the fresh water tank outside of a cleaning process and also in the absence of items to be cleaned in the process chamber in order to generate negative control power for the public power grid or to provide the home network in which the device is located.
  • the control electronics can be provided with a receiving device which is set up in such a way that data or control commands can be received from an energy management system via this device.
  • control electronics of the device can decide based on a user input, based on a measurement of the ambient temperature of the device, based on communication with a heating or air conditioning system in the surrounding building or based on a query of meteorological data, whether cooling of a storage room of the device is desirable.
  • the device according to the invention can advantageously be equipped with control electronics be equipped, which not only uses programmable logic modules, such as microcontrollers, CPLD ("Complex Programmable Logic Device") or FPGA ("Field Programmable Gate Array”), but also an Internet-enabled control computer with a processor and operating system, for example a single board computer.
  • programmable logic modules such as microcontrollers, CPLD ("Complex Programmable Logic Device") or FPGA (“Field Programmable Gate Array”
  • the device can be provided with connections for a computer screen and for input devices, such as a mouse and keyboard, or have such devices permanently installed, so that the user can also use numerous functions of an office computer on the device, and in particular can also establish an Internet connection .
  • the device can be provided with a remote maintenance function and offer the possibility of holding video conferences via a built-in or externally connected camera.
  • the user can thus be given the opportunity to contact customer service via a video connection and to have defects that have occurred in the device diagnosed via the remote maintenance function.
  • a test run of the device with the aim of reproducing and diagnosing a previously occurring error pattern can be carried out in the presence of the user of the device without having to travel to customer service, whereby the user can be instructed via the video connection to take certain steps, for example inserting the device of items to be cleaned or turning on a water tap. In this way, necessary repair measures can be prepared on site in a more targeted manner.
  • the device can advantageously be equipped with temperature sensors at one or more points in the refrigerant circuit, in the process water or fresh water circuit and/or in the air flow of the refrigerant evaporator.
  • the operating status of the air-to-water heat pump in particular can be monitored and critical operating statuses and faults in particular can be detected in good time, for example a failure of a fan motor of the refrigerant evaporator, a failure of the refrigerant compressor or overheating as a result of a failure of a feed pump for process or Fresh water or as a result of a water leak.
  • the control program of the device can provide for the refrigerant compressor of the air-water heat pump to be switched off temporarily in order to defrost the refrigerant evaporator.
  • the device according to the invention can advantageously be equipped with at least one fill level sensor and at least one temperature sensor, so that the control electronics of the device can detect the fill level and the water temperature in the fresh water tank and/or the process chamber. Furthermore, it can also be expedient to attach flow sensors and/or pressure sensors to the circulatory systems or their lines.
  • the device can include a dual-circuit feed pump, which is set up to regulate a flow of process water exiting the process chamber and of fresh water.
  • a dual-circuit feed pump can be designed in particular as a double-piston pump.
  • the double-piston pump has identical piston surfaces and an identical stroke, with a first piston being able to pump waste water and a second piston being able to pump fresh water.
  • both pistons can be mechanically coupled and provided with at least one return spring, wherein a pump cycle can be controlled via valves in such a way that the first piston is moved against a spring force by the pressure of the fresh water flowing in.
  • the second piston which is coupled to the first piston, sucks in waste water from the process chamber at the same time. After the fresh water supply is switched off by a control valve and the flow of water from the fresh water piston to a heat exchanger is released by another control valve, the spring force moves both pistons back to their original position. This allows equal amounts of fresh water and waste water to be pumped to a heat exchanger. In addition, this in particular allows pumping purely through the water pressure, without the use of additional electrical energy.
  • the adjustment of the two mass flows in the pumping operation can be realized by a control circuit, which measures both mass flows and actively controls at least one of them, or by two mechanically coupled pumps for pumping waste water and fresh water, which can pump identical volume flows, for example in the form of two peristaltic pumps same geometry, which have a common drive shaft.
  • the device according to the invention can in an optional embodiment chemical heat storage for long-term storage of by the device have generated heat.
  • chemical heat storage systems based on sodium acetate, for example, are ideal.
  • waste water heat, fresh water heat or with the help of the air-water heat pump a chemical heat accumulator can be heated in such a way that a chemical reaction that serves to charge it takes place.
  • a cooling of the chemical heat accumulator to ambient temperature is accepted.
  • air-to-water heat pumps can use water in many cases do not heat to boiling point. Air-to-water heat pumps can therefore be designed in such a way that they achieve good coefficients of efficiency in the lower temperature range, but the maximum water temperature is in the range of 65°C to 70°C, in particular through the choice of refrigerant. However, depending on the area of application, it can be advantageous or even necessary to achieve higher water temperatures, for example in white wash programs in washing machines.
  • the device according to the invention can have a heating element for heating the process water in addition to the air-water heat pump.
  • the heating element can be switched on in particular when the air-to-water heat pump has reached its maximum process water heating temperature and has been switched off accordingly, but further heating of the process water is necessary.
  • the immersion heater can also serve as a fallback solution to maintain the functionality of the device in the event that the air-to-water heat pump is not operational due to internal or external factors, such as a technical defect or too low room temperatures.
  • the device according to the invention can also be set up to heat water from an external device or water storage tank connected to the device via the air-water heat pump.
  • household appliances and in particular washing machines and dishwashers are often installed in rooms in which there are other electrical appliances that heat water using an electrical heating element, it can be advantageous to couple the device according to the invention with at least one such electrical appliance.
  • the device can be equipped with a hot water outlet, via which a connected device can be supplied with hot water, with the hot water being able to represent both process water heated by the device and also heated fresh water.
  • a washing machine according to the invention with an air-to-water heat pump can supply a neighboring washing machine without a heat pump with warm water and thus significantly reduce its energy requirements.
  • the control electronics of the device according to the invention is expediently equipped with a communication interface to a neighboring washing machine in order to avoid a coincidence in time of the phases of water heating when both devices are operated at the same time, for example by inserting breaks in the program sequence.
  • the device according to the invention can be connected to a hot water tank of a building's own heating system, for example a service water tank or a buffer tank.
  • the device can be able to heat the contents of the hot water tank via the air-to-water heat pump.
  • water can circulate between the hot water storage tank and the device, or an additional refrigerant condenser can be provided on or in the hot water storage tank, which is connected to the device via additional refrigerant lines.
  • a switching valve can be provided in the refrigerant circuit within the device, which selects between the internal and the external refrigerant condenser.
  • a device designed in this way can, in particular, substitute a service water heat pump.
  • the device according to the invention By heating the contents of the external hot water tank by the device according to the invention, the primary energy requirement of the heating system into which the hot water tank is integrated can be reduced. In particular, the avoidance of heating cycles and cooling cycles can have a positive effect on the life of a boiler within the heating system, which would otherwise have to take over the task of heating the contents of the hot water tank.
  • the device according to the invention can be provided with a connection for an external temperature sensor.
  • a communication interface to the control electronics of a heating system can also be provided.
  • an air-to-air heat pump can be provided for drying the items to be cleaned.
  • the refrigerant compressor of the device can also be used in a drying unit.
  • the drying of items to be cleaned can be carried out in a particularly energy-efficient manner using an air-to-air heat pump, in which both the refrigerant evaporator and the refrigerant condenser use air as the medium as the heat carrier.
  • air can first be cooled in the refrigerant evaporator, so that the water vapor contained therein is partially condensed, and then heated in the refrigerant condenser. The air heated in this way can then flow around or through the items to be cleaned.
  • a device according to the invention is equipped with a dryer function, only one refrigerant compressor can advantageously be provided, which is set up both for heating the process water during a cleaning process and for dehumidifying the items to be cleaned during a drying process.
  • switching valves can be arranged in the refrigerant circuit. Further Simplifications can result if the refrigerant evaporator and possibly its blower are only available in a simple design and are used both for heating the process water and for drying the items to be cleaned. Adjustable air flaps can be used here to direct the air flow in the right direction depending on the functionality that is currently required.
  • a process chamber 14 of a device 10 according to the invention is shown cylindrical, corresponding to the usual embodiment of a washing tub in washing machines.
  • a washing drum which is used to hold textiles to be cleaned, is usually rotatably mounted in this washing tub.
  • the process chamber 14 usually has a cuboid shape and contains rotatably mounted spray arms.
  • the cuboid washing chamber takes the place of the cylindrical washing tub.
  • the rinsing chamber or the washing tub are not limited to a cuboid or cylindrical shape and can also be designed in another shape.
  • Line connections which in the following figures end at the bottom and/or the top of the process chamber 14, can also be attached to the process chamber 14 in other ways and are shown in the figures purely as an example.
  • FIG 1 shows a schematic representation of a first exemplary embodiment of a device 10 according to the invention, which includes an air-water heat pump 12 .
  • the air-to-water heat pump 12 has a refrigerant compressor 16 , a refrigerant condenser 18 and a refrigerant evaporator 20 with a fan 22 which conveys ambient air through the refrigerant evaporator 20 .
  • the refrigerant condenser 18 is arranged here within a process chamber 14 and can also be provided in a lower region of the process chamber 14 of the device 10 according to the invention, so that it is in particular completely immersed in water during a cleaning process. This enables heat to be transferred from a refrigerant, which is transported through a circulatory system 24 of the air-to-water heat pump 12, to process water.
  • the process water which can be fed into the process chamber 14, is used to clean items to be cleaned.
  • the refrigerant can be, for example, carbon dioxide, a hydrocarbon, or a halogenated hydrocarbon and can be circulated through the circulation system 24 of the device 10 .
  • the refrigerant compressor 16 is set up to compress the gaseous refrigerant, as a result of which the refrigerant heats up considerably. In the course of the compression of the refrigerant, it can be heated, for example, to approximately 60° C. to 70° C., with a pressure of approximately 20 bar to 40 bar being able to be generated.
  • the heated refrigerant passes from the refrigerant compressor 16 into the circuit system 24 Refrigerant condenser 18. There, the heated refrigerant transfers heat to the colder process water, which is located inside the process chamber 14.
  • the process water can be heated up to approx. 60°C due to the heat transfer.
  • the refrigerant which is still compressed, cools down and condenses as soon as it reaches a pressure-dependent condensation temperature.
  • This condensation temperature can vary depending on the refrigerant.
  • To expand the liquid refrigerant it can be expanded in particular by an expansion valve (in figure 1 not shown) are transported.
  • the refrigerant evaporates and cools down, in particular to approx. ⁇ 5°C.
  • the refrigerant evaporator 20 In order to reach the initial temperature of the refrigerant, it is transported through the refrigerant evaporator 20, wherein the refrigerant can be heated to approximately 5° C.
  • the air-to-water heat pump is able to efficiently heat process water via a circulation system.
  • the heating begins at the temperature at which the process water is initially present in the process chamber 14, for example the temperature of the cold tap water, and ends at the setpoint temperature of the process water.
  • lower process water temperatures for example approx. 30°C, can also be generated for low-temperature cleaning processes.
  • an air-to-water heat pump 12 includes a heat exchanger 26 which functions as a refrigerant condenser according to the flow heater principle and is arranged outside of the process chamber 14 .
  • the heat exchanger 26 is connected to two hermetically separate circuits 24, 28, one of which is traversed by a refrigerant and the other by process water.
  • a feed pump 30 is used here to feed the process water from the process chamber 14 to the heat exchanger 26 and back.
  • the heat exchanger 26 can be designed as a stainless steel plate heat exchanger, for example.
  • the device can provide a process water drain (in figure 2 not shown), which is set up in particular to derive process water from the process chamber 14 after a cleaning process.
  • a process water inflow (in figure 2 not shown) may be provided, which fills the process chamber 14 with fresh process water before a cleaning process. The fresh process water can then be fed into the circuit 28 for heating.
  • FIG 3 shows an expanded schematic representation of the second embodiment of the device 10 according to the invention, which illustrates a heat recirculation of waste heat.
  • a waste water feed pump 32 which can correspond to a drain pump according to the prior art in washing machines and dishwashers, is a Switching valve 34 downstream. In a first valve position, waste water can be pumped out of the device 10 via the discharge line 36 . In a second valve position, on the other hand, water can get into a water pocket 38 which is integrated, for example, in a side wall of the device 10 . After a cleaning process with warm process water, the resulting waste water can be pumped into the water bag and remain there so that the heat contained in it can be transferred to the surrounding ambient air.
  • the resulting waste water can be pumped out in the first valve position of the switching valve 34 , bypassing the water pocket 38 , directly into the drain line 36 of the device 10 .
  • a drain 40 located outside the device 10, which is U-shaped, for example, is used to drain waste water out of the device 10.
  • FIG 4 is an alternative embodiment of the figure 3 illustrated schematic representation shown, in which a partial utilization of the waste water heat for subsequent cleaning processes is implemented.
  • the water pocket of the device 10 is designed in two parts and additionally comprises a chamber 42 for fresh water, the chambers 38, 42 being separated from one another by a partition wall which is as thermally conductive as possible.
  • a simple solution for pumping warm fresh water from the fresh water chamber 42 into the process chamber 14 can be to supply fresh water via an inlet valve 44 to a lower area of the fresh water chamber 42, which has an overflow line 46 leading into the process chamber 14 in an upper area. If the device 10 is a washing machine for textiles, the overflow line 46 can also lead into a detergent dispensing chamber of the device 10 instead of directly into the process chamber 14 . If it is a dishwasher, provision can be made for fresh water to pass through an ion exchanger of the device 10 before it enters the fresh water chamber 42 .
  • another inlet valve (not shown) is formed, through which fresh water bypasses the fresh water chamber 42 via an inlet line (not shown) directly into the process chamber 14 can be let in. This allows cold cleaning operations to be performed while there is warm water in the fresh water chamber 42 .
  • FIG. 12 is a schematic representation of a heat exchanger assembly for waste heat recovery compatible with both the first embodiment and the second embodiment.
  • a waste water feed pump 32 pumps waste water from the process chamber 14 to an upper inlet of a counterflow heat exchanger 48, which is arranged in particular vertically the discharge line 36 following the heat exchanger 48 can be guided in such a way that it temporarily runs above an upper edge of the heat exchanger 48 . This ensures that the waste water side of the heat exchanger 48 can be completely filled with water.
  • Fresh water reaches a controllable inlet valve 44 via an inlet line 50 of the device 10. If this inlet valve 44 is opened, fresh water enters the heat exchanger 48 from below, flows through it and reaches a thermally insulated fresh water tank 52 in a heated state. Heated fresh water can be removed from the fresh water tank 52 and, for example, in the process chamber 14 or in external devices or electrical devices (not shown) are fed.
  • FIG 6 Illustrated is a schematic representation of an alternative heat exchanger arrangement including a dual piston pump 54 .
  • the double piston pump 54 which can be integrated into a device 10 with a countercurrent heat exchanger 48 for waste water heat recovery, ensures identical flow rates on the waste water and fresh water side and can also pump waste water solely through the fresh water pressure without the use of additional electrical energy.
  • the double piston pump 54 has a pump housing 56, a working piston 58 for fresh water and a working piston 60 for waste water, which have identical effective areas and are rigidly coupled to one another, for example by both being connected to the same piston rod 62.
  • a return spring 64 drives both pistons 58, 60 to their home position.
  • a water flow into a first working volume 68 of the working piston 58 can be brought about by opening a (preferably electrically) controllable supply valve 44 for fresh water.
  • the working piston 58 is moved against the force of the return spring 64 by the fresh water pressure.
  • the coupled working piston 60 for waste water moves synchronously therewith and thereby draws in waste water from the process chamber 14 via a first check valve 72 into a second working volume 70 . If the inlet valve 44 is then closed and a (preferably also electrically) controllable outlet valve 66 is opened, both working pistons 58, 60 are returned by the force of the return spring 64 to the starting position pressed.
  • the piston rod 62 is expediently equipped with two end position switches 76, 78 or, alternatively, with a travel sensor (not shown) in order to be able to detect when the starting and end positions have been reached using an electronic control system.
  • FIG 7 shows a schematic representation of the device 10 according to the invention according to a third exemplary embodiment, which, by way of example, illustrates both a wastewater heat recovery function and a fresh water heating function.
  • a device 10 having such a dual function can act as a "smart grid" device.
  • an air-to-water heat pump 12 which includes a refrigerant compressor 16, a refrigerant evaporator 20 with a fan 22 and a heat exchanger 26, is provided with a first feed pump 30 on the water circuit side, and with two switching valves 34a and 34b, which are always switched simultaneously can.
  • the switching valves 34a, 34b can be used to select whether the air/water heat pump 12 heats process water in the process chamber 14 or fresh water in the insulated fresh water tank 52.
  • a second feed pump 32 allows warm fresh water to be transferred from the fresh water tank 52 to the process chamber 14 for a cleaning process, with the path of the fresh water being able to run through a dispensing compartment in the case of a washing machine in order to supply detergent.
  • the double-piston pump 54 is used in conjunction with a countercurrent heat exchanger 48, an inlet valve 44a and an outlet valve 66 and two check valves 72, 74 to recover heat from the waste water.
  • An additional inlet valve 44b allows fresh water to be fed directly via an inlet line 50 of the device 10 into the insulated fresh water tank 52.
  • the fresh water tank 52 can be filled with fresh water via the inlet valve 44b if excess electrical power is to be used to heat the water outside of a cleaning process However, fresh water tank 52 has a too low fill level.
  • FIG 8 a schematic representation of the device 10 according to the invention is shown according to a fourth exemplary embodiment, which illustrates heating of water in an external hot water storage tank 84 .
  • a refrigerant circuit which includes a refrigerant compressor 16, a refrigerant evaporator 20 with fan 22 and a first heat exchanger 26, is here to a second Heat exchanger 80 expanded.
  • the second heat exchanger 80 has water connections which lead to the outside through a housing 82 of the device 10 .
  • In the refrigerant circuit of the air-to-water heat pump 12 there is a switching valve 34, through which one of the two heat exchangers 26, 80 can be selected.
  • An external hot water tank 84 can thus be connected to the device 10 via water lines 86 and a circulating pump 88 . If the second heat exchanger 80 is selected by the changeover valve 34 and the circulating pump 88 is switched on, the device 10 can heat the contents of the hot water storage tank 84 and can thus assume the function of a heating heat pump set up in an
  • a hot water tank 84 can be a service water tank, for which the second heat exchanger 80 can be constructed on the water side from materials that are compatible with drinking water.
  • the exemplary embodiments represent two to four modifications of the device 10 of the first exemplary embodiment. With regard to exemplary embodiments two to four, only the differences from the first exemplary embodiment will be discussed in more detail and reference is made to the first exemplary embodiment with regard to all other features and functions. Accordingly, all of the features, effects and advantages disclosed with respect to the first embodiment of the device 10 may be equally applicable to the second, third and fourth embodiments of the device 10 and vice versa. Likewise, the features, effects and advantages of the second, third and fourth exemplary embodiments can be applied to one another.
  • the device according to the invention extracts heat from the ambient air surrounding it, the room in which the device is installed inevitably cools down. Depending on the climatic zone in which the device is operated and depending on the season and weather conditions, this can be an advantage if cooling the room is desirable anyway. In geographic locations where air conditioning of interior spaces is common, this can result in an additional energy saving effect, since the room air conditioning system then has to provide less cooling capacity during operation of the device according to the invention. In cases where cooling of the installation room is not desired or the room is even heated, this is a disadvantage, especially if the room heating has to provide more heat output as a result.
  • a negative heat balance due to the operation of the device according to the invention for the installation room can be avoided by after the passage of a warm During the cleaning process, the heated process water is not disposed of directly via the waste water pipe, but rather is first brought into thermal contact with the ambient air for a certain period of time until the water has cooled down to almost room temperature, and only then is it discharged through a waste water pipe. Since electrical energy is used to heat the water with the air-water heat pump in addition to the ambient heat, it can even be the case that the heat balance for the room in which the machine is installed is positively shifted and the room warms up net.
  • the device performs a return heat transfer from waste water, for example to the ambient air, while parallel to this, further cleaning processes are already being carried out on items to be cleaned.
  • a heat exchanger designed as a water pocket (38) can have a sufficiently large volume of liquid to accommodate all of the waste water from a cleaning process. This allows the waste water to be pumped out quickly and another cleaning process to be carried out immediately while heat transfer from waste water to ambient air is still in progress. If cold waste water is produced in a subsequent cleaning step, it can be pumped directly into the discharge line of the device, while the not yet completely cooled waste water from a preceding warm cleaning process remains in the heat exchanger.
  • Such direct pumping into the drain line can be realized by a bypass valve on the waste water side of a heat exchanger, so that pumping processes can be carried out, in particular after cold cleaning processes, bypassing a heat exchanger.
  • the switching valve (34) in a previous embodiment fulfills exactly this function.
  • a second waste water pump can be provided, with the second waste water pump conveying waste water from the process chamber directly into a discharge line.
  • the heating of water can be temporally decoupled from a cleaning process.
  • the air-to-water heat pump is set up in particular to also heat the fresh water in the insulated fresh water tank instead of the process water in the process chamber.
  • the air-water heat pump can be equipped with a second refrigerant condenser, which is located in the fresh water tank, and have a switching valve within the refrigerant circuit, which selects between the two refrigerant condensers.
  • the air-to-water heat pump works according to the continuous-flow heater principle and uses a heat exchanger (26) as the refrigerant condenser
  • the extended functionality can be achieved by providing a feed pump for fresh water, which pumps fresh water from the insulated fresh water tank to the heat exchanger ( 26) and back pumps.
  • the feed pump can also be identical to the pump (30) which conveys water between the process chamber of the device and the refrigerant condenser.
  • the device according to the invention can also use the air in the absence of items to be cleaned in the process chamber - Activate the water heat pump and heat the fresh water in the fresh water tank.
  • the fresh water tank has a low fill level, it can be provided that it is initially filled with cold fresh water via the fresh water supply line of the device. If the fresh water reaches a specified target temperature or if additional electrical power consumption is no longer desirable, the air-water heat pump can be switched off. The fresh water heated in this way can then be stored in the fresh water tank and thus be available for the next cleaning process, which correspondingly requires less energy.
  • a device according to the invention can provide negative control power for the public power grid.
  • a respective power grid operator has a remote control option in the sense of a smart grid, which can be implemented, for example, via a ripple control receiver or via the Internet and requires a suitable receiving interface on the part of the device. If this technology is used across the board in around 70 million household appliances in the form of washing machines and/or dishwashers in Germany, an assumed input power of the air-water heat pump of 700 watts results in a maximum negative control power of 49 gigawatts.
  • the functionality of the device according to the invention can be particularly useful when it is located in a building that has a photovoltaic system. If the generation capacity of the local photovoltaic system exceeds the electricity consumption in the building, it can be useful to connect the device as a flexible load.
  • the control electronics of the device can be equipped with a communication interface, via which the device receives control commands from a building-related energy management system. If such an energy management system is not available, the device can partially take over its task by monitoring current power flows via interfaces to an electricity meter and, if necessary, to the photovoltaic system.
  • the device according to the invention can also be equipped with a control device for throttling the electrical power consumption of the air-water heat pump and possibly also a heating element, for example with a frequency converter, phase control or high-frequency pulse width modulation.
  • a control device for throttling the electrical power consumption of the air-water heat pump and possibly also a heating element, for example with a frequency converter, phase control or high-frequency pulse width modulation.
  • a heating element for example with a frequency converter, phase control or high-frequency pulse width modulation.
  • the device according to the invention is set up in a building that has a thermal solar collector for heating domestic water or another scheme for heating domestic water that can heat fresh water with a lower primary energy input than the air-water heat pump of the device, it can be useful to provide the device with an additional hot water input and an electronic interface to a building-related energy management system.
  • warm fresh water with low energy consumption is available due to current conditions in the building, the device can draw warm fresh water from the house network and use it for warm cleaning processes.
  • a temperature sensor at the hot water inlet can be used to set an adequate water supply. Even if a house network has service water circulation, the situation usually arises due to stationary pipe volumes that cold water initially emerges from a hot water pipe and only warm water follows after a certain amount of time has elapsed. Ideally, therefore, the initial, cold amount of water is discarded and only the subsequent warm water is used for the cleaning step.
  • the corresponding interface to a building-related energy management system or, if necessary, an existing Internet connection can also be used to forecast data with regard to the availability of regeneratively obtained electrical energy or regeneratively heated fresh water and to optimize the start time of a cleaning process from an energetic point of view when there are items to be cleaned in the device, but with regard to the exact time of the cleaning process a certain flexibility on the part of the user of the device consists.
  • the device according to the invention most likely includes more parts or components than comparable household appliances according to today's market standard, the total weight of the device is to be expected to be higher.
  • the additional components also require additional installation space, so that in the case of an unchanged size of the process chamber, larger device dimensions can be expected, insofar as previously unused cavities cannot be utilized.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Washing And Drying Of Tableware (AREA)
EP23020009.9A 2022-01-09 2023-01-06 Dispositif de nettoyage de produits à nettoyer Pending EP4218529A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102022000060.1A DE102022000060A1 (de) 2022-01-09 2022-01-09 Vorrichtung zur Reinigung von Reinigungsgut

Publications (1)

Publication Number Publication Date
EP4218529A1 true EP4218529A1 (fr) 2023-08-02

Family

ID=86895289

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23020009.9A Pending EP4218529A1 (fr) 2022-01-09 2023-01-06 Dispositif de nettoyage de produits à nettoyer

Country Status (2)

Country Link
EP (1) EP4218529A1 (fr)
DE (1) DE102022000060A1 (fr)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3609277A1 (de) 1986-03-19 1987-09-24 Ascher Erhard Wasch- oder spuelmaschine mit einem waermetauscher
DE19937629A1 (de) 1999-08-10 2001-02-15 Bsh Bosch Siemens Hausgeraete Antriebsvorrichtung für eine Waschmaschine
DE102004023126A1 (de) 2004-05-11 2005-12-08 Wartmann, Thomas, Dipl.-Ing. Waschmaschine mit Wärmerückgewinnung
EP2096203A1 (fr) 2009-05-28 2009-09-02 V-Zug AG Lave-linge ménager doté d'une pompe à chaleur
DE202010011953U1 (de) 2010-08-28 2011-11-29 Rodan Keiter Wärmepumpe mit Nutzung der Kompressor-/Verdichterabwärme
CN105476584A (zh) * 2014-09-19 2016-04-13 杭州三花研究院有限公司 热泵型餐具清洗机及其控制方法
DE102014118799A1 (de) 2014-12-17 2016-06-23 Miele & Cie. Kg Vorrichtung und Verfahren zum Erwärmen eines Behandlungsfluids für ein Wäschebehandlungsgerät und Wäschebehandlungsgerät
US20170051953A1 (en) * 2014-06-02 2017-02-23 Electrolux Appliances Aktiebolag Domestic appliance
WO2020064254A1 (fr) * 2018-09-25 2020-04-02 Arcelik Anonim Sirketi Lave-vaisselle à pompe à chaleur comprenant un plateau d'évaporateur
DE202021002165U1 (de) 2021-06-23 2021-08-10 Alexander Mlynek Waschmaschine mit Leistungsanpassung zur Eigenverbrauchsmaximierung bei lokaler regenerativer Stromerzeugung
DE202021002540U1 (de) 2021-08-01 2021-08-25 Alexander Mlynek Geschirrspülmaschine mit Leistungsanpassung zur Eigenverbrauchsmaximierung bei lokaler regenerativer Stromerzeugung

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3609277A1 (de) 1986-03-19 1987-09-24 Ascher Erhard Wasch- oder spuelmaschine mit einem waermetauscher
DE19937629A1 (de) 1999-08-10 2001-02-15 Bsh Bosch Siemens Hausgeraete Antriebsvorrichtung für eine Waschmaschine
DE102004023126A1 (de) 2004-05-11 2005-12-08 Wartmann, Thomas, Dipl.-Ing. Waschmaschine mit Wärmerückgewinnung
EP2096203A1 (fr) 2009-05-28 2009-09-02 V-Zug AG Lave-linge ménager doté d'une pompe à chaleur
DE202010011953U1 (de) 2010-08-28 2011-11-29 Rodan Keiter Wärmepumpe mit Nutzung der Kompressor-/Verdichterabwärme
US20170051953A1 (en) * 2014-06-02 2017-02-23 Electrolux Appliances Aktiebolag Domestic appliance
CN105476584A (zh) * 2014-09-19 2016-04-13 杭州三花研究院有限公司 热泵型餐具清洗机及其控制方法
DE102014118799A1 (de) 2014-12-17 2016-06-23 Miele & Cie. Kg Vorrichtung und Verfahren zum Erwärmen eines Behandlungsfluids für ein Wäschebehandlungsgerät und Wäschebehandlungsgerät
WO2020064254A1 (fr) * 2018-09-25 2020-04-02 Arcelik Anonim Sirketi Lave-vaisselle à pompe à chaleur comprenant un plateau d'évaporateur
DE202021002165U1 (de) 2021-06-23 2021-08-10 Alexander Mlynek Waschmaschine mit Leistungsanpassung zur Eigenverbrauchsmaximierung bei lokaler regenerativer Stromerzeugung
DE202021002540U1 (de) 2021-08-01 2021-08-25 Alexander Mlynek Geschirrspülmaschine mit Leistungsanpassung zur Eigenverbrauchsmaximierung bei lokaler regenerativer Stromerzeugung

Also Published As

Publication number Publication date
DE102022000060A1 (de) 2023-07-13

Similar Documents

Publication Publication Date Title
EP2331880B1 (fr) Procédé et dispositif pour obtenir de l'énergie thermique utile
DE102015100508A1 (de) Hausgerät mit einer Schnittstelle zum externen Aufnehmen eines Zirkulationsmediums und Verfahren zum Betreiben eines Hausgeräts
DE69106399T2 (de) Klimagerät mit Kältespeicher.
DE102009045547A1 (de) Verfahren zur Rückgewinnung von Energie aus der Wärme von Abwasser eines wasserführenden Haushaltsgerätes
DE112010003332T5 (de) Wärmepumpe (Server) für ein Waschmaschinen-Trockner-Paar
WO2008080831A1 (fr) Séchoir à condensation comprenant une pompe à chaleur ainsi que procédé de fonctionnement
DE112018005735T5 (de) Anlagenkühlungsvorrichtung
DE3209761A1 (de) Waermepumpenanlage
EP3036364B1 (fr) Appareil ménager pourvu d'un réservoir d'eau de rinçage
DE102013019185A1 (de) Geschirrspülmaschine mit einem Spülflüssigkeitskreislauf
DE102012109153A1 (de) Haushaltgeräteanordnung und Verfahren
DE102009004501B4 (de) Wärmepumpe und Verfahren zur Regelung der Quelleneingangstemperatur an der Wärmepumpe
DE102008054833A1 (de) Vorrichtung zur Wiedergewinnung und Speicherung von Wärmeenergie aus einem Abwasser
DE102012112646A1 (de) PCM Speicher
DE112014000525T5 (de) Heizsystem
EP4218529A1 (fr) Dispositif de nettoyage de produits à nettoyer
EP0862889A2 (fr) Pompe à chaleur pour machine à laver la vaisselle
DE102008054834B4 (de) Wärmegewinnungseinrichtung und Verfahren zur Wärmegewinnung für Prozesswasser eines Haushaltsgeräts
DE2417220A1 (de) Waermepumpeneinrichtung
EP2765360A2 (fr) Système de pompe à chaleur, utilisation d'une pompe avec chambre de pompe chauffante dans un dispositif de pompe à chaleur et procédé de fonctionnement d'un système de pompe à chaleur
EP1878974A1 (fr) Accumulateur combiné
DE69733009T2 (de) Energiemanagementsystem zum Übersachen und Verteilen von thermischer Energie mit Wärmetauschern
DE20216324U1 (de) Wärmepumpe mit Kühlfunktion
EP3054236A1 (fr) Reservoir de fluide
DE102020117660A1 (de) Mobiler Systemsatz zur Warmwassererzeugung, Heizung und/oder Kühlung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20240201

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR