WO2020057843A1 - A dishwasher comprising a heat pump - Google Patents

A dishwasher comprising a heat pump Download PDF

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Publication number
WO2020057843A1
WO2020057843A1 PCT/EP2019/070777 EP2019070777W WO2020057843A1 WO 2020057843 A1 WO2020057843 A1 WO 2020057843A1 EP 2019070777 W EP2019070777 W EP 2019070777W WO 2020057843 A1 WO2020057843 A1 WO 2020057843A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchanger
air duct
refrigerant fluid
condenser
heat
Prior art date
Application number
PCT/EP2019/070777
Other languages
French (fr)
Inventor
Husnu Kerpicci
Serkan SOLMAZ
Baris Erdogan
Erdem POSTOGLU
Original Assignee
Arcelik Anonim Sirketi
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 Arcelik Anonim Sirketi filed Critical Arcelik Anonim Sirketi
Priority to EP19748825.7A priority Critical patent/EP3852598A1/en
Publication of WO2020057843A1 publication Critical patent/WO2020057843A1/en

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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
    • A47L15/48—Drying arrangements
    • A47L15/483—Drying arrangements by using condensers
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/48—Drying arrangements
    • A47L15/488—Connections of the tub with the ambient air, e.g. air intake or venting arrangements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency

Definitions

  • the present invention relates to a dishwasher comprising a heat pump.
  • heat pumps are used for decreasing the energy consumption and improve the drying performance.
  • the heat pump is composed of the compressor, the condenser, the throttle valve and the evaporator elements.
  • the components of the heat pump are connected via a pipe line and the heat pump operates by means of the cycle fluid in the line.
  • the condenser is a tube bundle having a hot surface and enables the water to be heated by being positioned in the washing liquid of the dishwasher.
  • the evaporator has a cold surface and is positioned so as to contact the ambient air. The evaporator absorbs heat from the environment and provides heat transfer to the fluid and from the fluid to the compressor and the condenser.
  • the compressor for heating the water, the compressor is operated to enable the condenser to heat the water, and the evaporator is enabled to absorb heat from the environment to support the condenser that heats the water.
  • the fans blow the air on the evaporator, the latter draws heat from the environment and condenses the water vapor.
  • the generated cool air is discharged from the system by means of an air duct.
  • Patent Document No. WO2015090409 discloses a dishwasher comprising a heat pump wherein a heat exchanger is used for heating the washing water and the cool air while another heat exchanger is used for condensing the water vapor in the air.
  • the aim of the present invention is the realization of a dishwasher with a optimized thermodynamic cycle for discharging the waste heat generated in the heat pump system from the system, wherein water is stored during and after the water heating process and the placement of the heat pump and the air duct is optimized.
  • the dishwasher realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof comprises a body; a washing tub that is disposed in the body and wherein the dishes to be washed are placed; a drying duct that is arranged between the washing tub and the body and that enables the air used in the drying step to be dehumidified, and a heat pump that is disposed between the washing tub and the body.
  • the heat pump comprises a first heat exchanger which absorbs heat from the environment so as to enable the water used in the washing step to be heated, a second heat exchanger which transfers the heat received from the first heat exchanger to the washing tub, and a compressor which performs the refrigerant cycle between the first heat exchanger and the second heat exchanger.
  • the air duct or ducts through which the cool air leaving the evaporator is discharged, is/are used as an integrated structure designed as a condenser.
  • the temperature of the refrigerant fluid is decreased, and the system gains a more efficient thermodynamic cycle.
  • the integrated air duct condenser structure area is optimized.
  • the heater condenser which heats the washing water is deactivated, and thus the air duct designed as condenser is used for enabling the heat pump to continue operating and for generating and storing sufficient water vapor to supply some or all of the washing water in the evaporator.
  • the condenser integrated with the air duct is enabled to be operated at two separate places, namely before the evaporator or after the fan, together or separately.
  • the integrated heat exchanger air duct can be used in any geometric shape such as triangle, trapezoid, rectangle, circle, square, etc.
  • the outer casing enclosing the condenser air duct before the evaporator and the condenser air duct after the fan arranged in the air duct comprises air duct wings, pipes for transferring the refrigerant fluid and a serpentine condenser structure, and provides an efficient discharge of the waste heat.
  • the serpentine condenser structure which is positioned in the condenser air duct before the evaporator and the condenser air duct after the fan arranged in the air duct, can be used in any structure such as tubular heat exchanger, plate heat exchanger, extended surface heat exchanger or regenerative heat exchanger, thus allowing the use of different types of integrated condenser air duct systems with different outputs.
  • a structure suitable for refrigerant fluid inlet and outlet is provided in the serpentine structure in the condenser air duct before the evaporator.
  • a structure suitable for refrigerant fluid inlet and outlet is provided in the serpentine structure in the condenser air duct after the fan.
  • the fan which is placed after the condenser air duct before the evaporator, can be radial or axial.
  • the sensors in the washing tub receptacle measure the temperature of the water and control the thermal cycle by means of an algorithm.
  • the air duct condenser can be deactivated or the number of paces can be decreased by controlling the same with valves.
  • the dishwasher comprises a body ; a washing tub which is disposed in the body and wherein the washing process is performed; a drying duct which is arranged between the washing tub and the body and which enables the dry air to be sent into the washing tub ; a modular heat pump system which comprises the heat pump system disposed next to the washing tub ; and a heat pump which is disposed in the modular heat pump system and which has a first heat exchanger enabling the water to be used in the washing step, a second heat exchanger drawing heat from the air and transferring the same to the refrigerant fluid, a capillary decreasing the pressure during the transfer of the refrigerant fluid from the first heat exchanger to the second heat exchanger and a compressor fluidly connected to the first heat exchanger and the second heat exchanger so as to realize the refrigerant cycle.
  • the refrigerant fluid used in the cycle is pressurized in the compressor to be sent to the first heat exchanger via a three way valve .
  • the refrigerant fluid is sent to the condenser air duct before the evaporator which is disposed in the integrated heat exchanger air duct structure.
  • the temperature of the refrigerant fluid is decreased and then delivered to the condenser air duct after the fan such that the waste heat is absorbed again.
  • the second heat exchanger and the third heat exchanger are used to condense the water vapor in the lower water table to be stored as the washing water.
  • the first heat exchanger which heats the washing water, is deactivated.
  • the cycle refrigerant bypasses the first heat exchanger after the compressor to be sent to the condenser air duct before the evaporator in the integrated heat exchanger air duct by means of the three way valve .
  • the refrigerant fluid is delivered from the condenser air duct before the evaporator to the condenser air duct after the fan , and the waste heat thereon is discharged from the system with the same method.
  • the refrigerant fluid is passed through the second heat exchanger and the third heat exchanger by means of the capillary to be delivered to the compressor , thus completing the cycle.
  • the second heat exchanger and the third heat exchanger are used to condense water in the lower water table to be stored.
  • the condenser air duct before the evaporator and the condenser air duct after the fan can be used together or separately during the refrigerant fluid cycle in the integrated heat exchanger air duct.
  • the integrated heat exchanger air duct can be used in any shape such as triangle, trapezoid, rectangle, circle, square, etc.
  • an outer casing of air duct condenser which encloses the condenser air duct before the evaporator and the condenser air duct after the fan , comprises a wing of the air duct condenser , pipes of the air duct condenser and a serpentine condenser structure .
  • This structure has an optimized area, thus providing unity with the washing tub and the body . Thus, the surface area in contact with air is increased, and the need for an additional space for the condenser in the system is eliminated.
  • the serpentine condenser structure which is positioned in the condenser air duct before the evaporator and the condenser air duct after the fan , can be used in any structure such as tubular heat exchanger, plate heat exchanger, extended surface heat exchanger or regenerative heat exchanger.
  • an upper inlet or outlet for refrigerant fluid for the intake and exit of the refrigerant fluid is provided in the serpentine condenser structure in the condenser air duct before the evaporator .
  • the refrigerant fluid can complete the cycle thereof in the duct through the lower inlet or outlet for refrigerant fluid through which the refrigerant fluid can enter or exit after the completion of the cycle.
  • an upper inlet or outlet for refrigerant fluid for the intake and exit of the refrigerant fluid is provided in the serpentine condenser structure in the condenser air duct after the fan .
  • the refrigerant fluid can complete the cycle thereof in the duct through the lower inlet or outlet for refrigerant fluid through which the refrigerant fluid can enter or exit after the completion of the cycle.
  • the fan which is placed after the condenser air duct before the evaporator , can be radial or axial.
  • air flow can be provided throughout the integrated heat exchanger air duct.
  • the thermal cycle is controlled and the refrigerant fluid cycle can be changed by means of the three way valve during and after the washing water heating process.
  • the integrated heat exchanger air duct in order to accelerate the heat transfer from the first heat exchanger to the water, can be deactivated or the number of paces can be decreased by controlling the same with valves.
  • the integrated heat exchanger air duct functions both as an air duct and a condenser during the washing water heating process such that the waste heat in the system is discharged, thus optimizing the thermodynamic cycle of the refrigerant fluid.
  • the integrated heat exchanger air duct continues operating, and the condenser air duct before the evaporator and the condenser air duct after the fan function as a condenser, thus enabling the second heat exchanger and the third heat exchanger to continue collecting and storing water from the water vapor in the air. Consequently, the ambient heat is controlled by transferring heat to the environment, and moreover, the space is optimized by designing the system as an air duct.

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  • Washing And Drying Of Tableware (AREA)

Abstract

The present invention relates to a dishwasher comprising a body; a washing tub which is disposed in the body and wherein the washing process is performed; a drying duct which is arranged between the washing tub and the body and which enables the dry air to be sent into the washing tub; a modular heat pump system which comprises the heat pump system disposed next to the washing tub; and a heat pump which is disposed in the modular heat pump system and which has a first heat exchanger enabling the water to be used in the washing step, a second heat exchanger drawing heat from the air and transferring the same to the refrigerant fluid, a capillary decreasing the pressure during the transfer of the refrigerant fluid from the first heat exchanger to the second heat exchanger and a compressor fluidly connected to the first heat exchanger and the second heat exchanger so as to realize the refrigerant cycle.

Description

A DISHWASHER COMPRISING A HEAT PUMP
The present invention relates to a dishwasher comprising a heat pump.
In dishwashers, heat pumps are used for decreasing the energy consumption and improve the drying performance. In heat pump dishwashers, the heat pump is composed of the compressor, the condenser, the throttle valve and the evaporator elements. The components of the heat pump are connected via a pipe line and the heat pump operates by means of the cycle fluid in the line. The condenser is a tube bundle having a hot surface and enables the water to be heated by being positioned in the washing liquid of the dishwasher. The evaporator has a cold surface and is positioned so as to contact the ambient air. The evaporator absorbs heat from the environment and provides heat transfer to the fluid and from the fluid to the compressor and the condenser. In this type of heat pump systems, for heating the water, the compressor is operated to enable the condenser to heat the water, and the evaporator is enabled to absorb heat from the environment to support the condenser that heats the water. As the fans blow the air on the evaporator, the latter draws heat from the environment and condenses the water vapor. The generated cool air is discharged from the system by means of an air duct.
However, while the water is being heated for the washing process, waste heat is generated in the system. This prevents the heat pump system from operating in an optimized or efficient manner. Moreover, when the water is heated up to the desired temperature, the heating process is ended, thus stopping the heat pump. Therefore, water condensation/storage process performed by the evaporators also stops. Furthermore, as the state of the art heat pumps systems occupy a large area due to being modular on the component basis together with the air duct, cost loss, space loss and performance loss occur. In some cases, use of a single evaporator makes the system insufficient in condensing the water vapor. Moreover, the ambient temperature increasing due to the discharge of the cool air through the air duct cannot be taken under control.
The state of the art Patent Document No. WO2015090409 discloses a dishwasher comprising a heat pump wherein a heat exchanger is used for heating the washing water and the cool air while another heat exchanger is used for condensing the water vapor in the air.
The aim of the present invention is the realization of a dishwasher with a optimized thermodynamic cycle for discharging the waste heat generated in the heat pump system from the system, wherein water is stored during and after the water heating process and the placement of the heat pump and the air duct is optimized.
The dishwasher realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof comprises a body; a washing tub that is disposed in the body and wherein the dishes to be washed are placed; a drying duct that is arranged between the washing tub and the body and that enables the air used in the drying step to be dehumidified, and a heat pump that is disposed between the washing tub and the body. The heat pump comprises a first heat exchanger which absorbs heat from the environment so as to enable the water used in the washing step to be heated, a second heat exchanger which transfers the heat received from the first heat exchanger to the washing tub, and a compressor which performs the refrigerant cycle between the first heat exchanger and the second heat exchanger.
In the dishwasher of the present invention, for the complete discharge of the waste heat in the refrigerant fluid leaving the heater condenser during the washing water heating process, the air duct or ducts, through which the cool air leaving the evaporator is discharged, is/are used as an integrated structure designed as a condenser. Thus, the temperature of the refrigerant fluid is decreased, and the system gains a more efficient thermodynamic cycle. In order to discharge the waste heat, the integrated air duct condenser structure area is optimized. In the dishwasher of the present invention, after the heating of the washing water is completed, the heater condenser which heats the washing water is deactivated, and thus the air duct designed as condenser is used for enabling the heat pump to continue operating and for generating and storing sufficient water vapor to supply some or all of the washing water in the evaporator.
In an embodiment of the present invention, the condenser integrated with the air duct is enabled to be operated at two separate places, namely before the evaporator or after the fan, together or separately.
In an embodiment of the present invention, the integrated heat exchanger air duct can be used in any geometric shape such as triangle, trapezoid, rectangle, circle, square, etc.
In an embodiment of the present invention, the outer casing enclosing the condenser air duct before the evaporator and the condenser air duct after the fan arranged in the air duct comprises air duct wings, pipes for transferring the refrigerant fluid and a serpentine condenser structure, and provides an efficient discharge of the waste heat.
In an embodiment of the present invention, the serpentine condenser structure, which is positioned in the condenser air duct before the evaporator and the condenser air duct after the fan arranged in the air duct, can be used in any structure such as tubular heat exchanger, plate heat exchanger, extended surface heat exchanger or regenerative heat exchanger, thus allowing the use of different types of integrated condenser air duct systems with different outputs.
In an embodiment of the present invention, a structure suitable for refrigerant fluid inlet and outlet is provided in the serpentine structure in the condenser air duct before the evaporator.
In an embodiment of the present invention, a structure suitable for refrigerant fluid inlet and outlet is provided in the serpentine structure in the condenser air duct after the fan.
In an embodiment of the present invention, the fan, which is placed after the condenser air duct before the evaporator, can be radial or axial.
In an embodiment of the present invention, the sensors in the washing tub receptacle measure the temperature of the water and control the thermal cycle by means of an algorithm.
In order to accelerate the heat transfer from the condenser to the water, the air duct condenser can be deactivated or the number of paces can be decreased by controlling the same with valves.
The dishwasher comprises a body ; a washing tub which is disposed in the body and wherein the washing process is performed; a drying duct which is arranged between the washing tub and the body and which enables the dry air to be sent into the washing tub ; a modular heat pump system which comprises the heat pump system disposed next to the washing tub ; and a heat pump which is disposed in the modular heat pump system and which has a first heat exchanger enabling the water to be used in the washing step, a second heat exchanger drawing heat from the air and transferring the same to the refrigerant fluid, a capillary decreasing the pressure during the transfer of the refrigerant fluid from the first heat exchanger to the second heat exchanger and a compressor fluidly connected to the first heat exchanger and the second heat exchanger so as to realize the refrigerant cycle.
During the water heating process in the dishwasher of the present invention, the refrigerant fluid used in the cycle is pressurized in the compressor to be sent to the first heat exchanger via a three way valve . In order to better absorb the waste heat on the refrigerant fluid leaving the first heat exchanger and to enable the heat pump system to be operated more efficiently, the refrigerant fluid is sent to the condenser air duct before the evaporator which is disposed in the integrated heat exchanger air duct structure. Thus, the temperature of the refrigerant fluid is decreased and then delivered to the condenser air duct after the fan such that the waste heat is absorbed again. These absorption processes are realized by delivering the air cooler than the refrigerant fluid coming from the second heat exchanger and the third heat exchanger through the integrated heat exchanger air duct by means of a fan . After the condenser air duct after the fan , the cooled refrigerant fluid is sent to the second heat exchanger and the third heat exchanger via the capillary , thus the ambient heat is transferred to the refrigerant fluid. By sending the refrigerant fluid to the compressor , the cycle is completed. Thus, the integrated heat exchanger air duct functions as a second condenser in addition to the first heat exchanger , which heats the water, and transfer the waste heat to the air passing through the duct, thereby optimizing the operation of the system. Moreover, in this process, the second heat exchanger and the third heat exchanger are used to condense the water vapor in the lower water table to be stored as the washing water. When the washing water is not heated, the first heat exchanger , which heats the washing water, is deactivated. The cycle refrigerant bypasses the first heat exchanger after the compressor to be sent to the condenser air duct before the evaporator in the integrated heat exchanger air duct by means of the three way valve . Afterwards the refrigerant fluid is delivered from the condenser air duct before the evaporator to the condenser air duct after the fan , and the waste heat thereon is discharged from the system with the same method. Then, the refrigerant fluid is passed through the second heat exchanger and the third heat exchanger by means of the capillary to be delivered to the compressor , thus completing the cycle. In this process, even if the washing water is not heated, the second heat exchanger and the third heat exchanger are used to condense water in the lower water table to be stored.
In an embodiment of the present invention, the condenser air duct before the evaporator and the condenser air duct after the fan can be used together or separately during the refrigerant fluid cycle in the integrated heat exchanger air duct.
The integrated heat exchanger air duct can be used in any shape such as triangle, trapezoid, rectangle, circle, square, etc.
In another embodiment of the present invention, an outer casing of air duct condenser , which encloses the condenser air duct before the evaporator and the condenser air duct after the fan , comprises a wing of the air duct condenser , pipes of the air duct condenser and a serpentine condenser structure . This structure has an optimized area, thus providing unity with the washing tub and the body . Thus, the surface area in contact with air is increased, and the need for an additional space for the condenser in the system is eliminated.
In another embodiment of the present invention, the serpentine condenser structure , which is positioned in the condenser air duct before the evaporator and the condenser air duct after the fan , can be used in any structure such as tubular heat exchanger, plate heat exchanger, extended surface heat exchanger or regenerative heat exchanger.
In another embodiment of the present invention, an upper inlet or outlet for refrigerant fluid for the intake and exit of the refrigerant fluid is provided in the serpentine condenser structure in the condenser air duct before the evaporator . The refrigerant fluid can complete the cycle thereof in the duct through the lower inlet or outlet for refrigerant fluid through which the refrigerant fluid can enter or exit after the completion of the cycle. By maximizing the surface area, the required heat transfer can be efficiently realized.
In another embodiment of the present invention, an upper inlet or outlet for refrigerant fluid for the intake and exit of the refrigerant fluid is provided in the serpentine condenser structure in the condenser air duct after the fan . The refrigerant fluid can complete the cycle thereof in the duct through the lower inlet or outlet for refrigerant fluid through which the refrigerant fluid can enter or exit after the completion of the cycle. By maximizing the surface area, the required heat transfer can be efficiently realized.
In another embodiment of the present invention, the fan , which is placed after the condenser air duct before the evaporator , can be radial or axial. Thus, air flow can be provided throughout the integrated heat exchanger air duct.
In another embodiment of the present invention, by means of a sensor which is placed into the washing tub receptacle to measure the temperature of the water and by means of the algorithm run according to said sensor , the thermal cycle is controlled and the refrigerant fluid cycle can be changed by means of the three way valve during and after the washing water heating process.
In another embodiment of the present invention, in order to accelerate the heat transfer from the first heat exchanger to the water, the integrated heat exchanger air duct can be deactivated or the number of paces can be decreased by controlling the same with valves. Thus, a system, which can be activated when needed, is realized.
In the dishwasher of the present invention, the integrated heat exchanger air duct functions both as an air duct and a condenser during the washing water heating process such that the waste heat in the system is discharged, thus optimizing the thermodynamic cycle of the refrigerant fluid. Outside the washing water heating process, the integrated heat exchanger air duct continues operating, and the condenser air duct before the evaporator and the condenser air duct after the fan function as a condenser, thus enabling the second heat exchanger and the third heat exchanger to continue collecting and storing water from the water vapor in the air. Consequently, the ambient heat is controlled by transferring heat to the environment, and moreover, the space is optimized by designing the system as an air duct.

Claims (8)

  1. A dishwasher comprising a body ; a washing tub which is disposed in the body and wherein the washing process is performed; a drying duct which is arranged between the washing tub and the body and which enables the dry air to be sent into the washing tub ; a modular heat pump system which comprises the heat pump system disposed next to the washing tub ; and a heat pump which is disposed in the modular heat pump system and which has a first heat exchanger enabling the water to be used in the washing step, a second heat exchanger drawing heat from the air and transferring the same to the refrigerant fluid, a capillary decreasing the pressure during the transfer of the refrigerant fluid from the first heat exchanger to the second heat exchanger and a compressor fluidly connected to the first heat exchanger and the second heat exchanger so as to realize the refrigerant cycle, characterized by a modular system for a process for heating the water in the modular heat pump system located next to the washing tub and the body , wherein the refrigerant fluid is sent to the first heat exchanger from the compressor by means of a three way valve and then to a condenser air duct before the evaporator in an integrated heat exchanger air duct and then to a condenser air duct after the fan from the condenser air duct before the evaporator , and after releasing the heat of the refrigerant fluid as waste heat by means of a cool air coming from the second heat exchanger and a third heat exchanger by means of a fan , the refrigerant fluid is passed through the condenser air duct after the fan by means of the capillary to be heated in the second heat exchanger and the third heat exchanger and then to be delivered to the compressor to increase the pressure of the refrigerant fluid to be sent to the first heat exchanger to complete cycle and wherein in this process the second heat exchanger and the third heat exchanger are used to store water in a lower water table , the dishwasher further characterized by a modular system for a process for not heating the water, wherein the refrigerant fluid is sent to the condenser air duct before the evaporator in an integrated heat exchanger air duct from the compressor by means of the three way valve and then to the condenser air duct after the fan from the condenser air duct before the evaporator , and after releasing the heat of the refrigerant fluid as waste heat by means of a cool air coming from the second heat exchanger and a third heat exchanger by means of the fan , the refrigerant fluid is passed through the condenser air duct after the fan by means of the capillary to be heated in the second heat exchanger and the third heat exchanger and then to be delivered to the compressor to increase the pressure of the refrigerant fluid to complete cycle and wherein outside the water heating process the second heat exchanger and the third heat exchanger are used to store water in the lower water table .
  2. A dishwasher as in Claim 1, characterized in that the condenser air duct before the evaporator and the condenser air duct after the fan can be used together or separately during the refrigerant fluid cycle.
  3. A dishwasher as in any one of the above claims, characterized by an outer casing of air duct condenser , which encloses the condenser air duct before the evaporator and the condenser air duct after the fan , a wing of the air duct condenser , pipes of the air duct condenser and a serpentine condenser structure .
  4. A dishwasher as in any one of the above claims, characterized by a serpentine condenser structure which is provided in the condenser air duct before the evaporator and by an upper inlet or outlet for refrigerant fluid for the intake and exit of the refrigerant fluid and by the lower inlet or outlet for refrigerant fluid through which the refrigerant fluid can enter or exit after the refrigerant fluid completes or starts the cycle thereof in the condenser air duct before the evaporator .
  5. A dishwasher as in any one of the above claims, characterized by a serpentine condenser structure which is provided in the condenser air duct after the fan and by an upper inlet or outlet for refrigerant fluid for the intake and exit of the refrigerant fluid and by the lower inlet or outlet for refrigerant fluid through which the refrigerant fluid can enter or exit after the refrigerant fluid completes or starts the cycle thereof in the condenser air duct before the evaporator .
  6. A dishwasher as in any one of the above claims, wherein the fan , which is placed after the condenser air duct before the evaporator , is radial or axial.
  7. A dishwasher as in any one of the above claims, characterized by a sensor which is placed into the washing tub receptacle to measure the temperature of the water, wherein by means of the algorithm run according to said sensor , the thermal cycle is controlled.
  8. A dishwasher as in any one of the above claims, characterized in that in order to accelerate the heat transfer from the first heat exchanger to the water, the integrated heat exchanger air duct can be deactivated or the number of paces can be decreased by controlling the same with valves.
PCT/EP2019/070777 2018-09-17 2019-08-01 A dishwasher comprising a heat pump WO2020057843A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19748825.7A EP3852598A1 (en) 2018-09-17 2019-08-01 A dishwasher comprising a heat pump

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2018/13315 2018-09-17
TR201813315 2018-09-17

Publications (1)

Publication Number Publication Date
WO2020057843A1 true WO2020057843A1 (en) 2020-03-26

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PCT/EP2019/070777 WO2020057843A1 (en) 2018-09-17 2019-08-01 A dishwasher comprising a heat pump

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WO (1) WO2020057843A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2682037A2 (en) * 2012-07-03 2014-01-08 Miele & Cie. KG Dishwasher and method for operating a dishwasher
US20140238442A1 (en) * 2013-02-26 2014-08-28 Miele & Cie. Kg Automatic dishwasher
WO2015090409A1 (en) 2013-12-19 2015-06-25 Electrolux Appliances Aktiebolag Dishwasher comprising heat pump system
EP3257422A1 (en) * 2016-06-17 2017-12-20 Electrolux Professional S.p.A. Dishwashing machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2682037A2 (en) * 2012-07-03 2014-01-08 Miele & Cie. KG Dishwasher and method for operating a dishwasher
US20140238442A1 (en) * 2013-02-26 2014-08-28 Miele & Cie. Kg Automatic dishwasher
WO2015090409A1 (en) 2013-12-19 2015-06-25 Electrolux Appliances Aktiebolag Dishwasher comprising heat pump system
EP3257422A1 (en) * 2016-06-17 2017-12-20 Electrolux Professional S.p.A. Dishwashing machine

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