CN109381145B - Heat pump type dish washing machine and control method - Google Patents
Heat pump type dish washing machine and control method Download PDFInfo
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- CN109381145B CN109381145B CN201710686177.5A CN201710686177A CN109381145B CN 109381145 B CN109381145 B CN 109381145B CN 201710686177 A CN201710686177 A CN 201710686177A CN 109381145 B CN109381145 B CN 109381145B
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
- A47L15/16—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with rigidly-mounted spraying devices
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
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- 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
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Abstract
The invention discloses a heat pump type dish washing machine, which comprises a treatment chamber and a heat pump system for heating washing water, wherein a spraying port is arranged in the treatment chamber, and the spraying port sprays the washing water to clean tableware in the treatment chamber; the heat pump system comprises an evaporator and an energy storage device, wherein an energy storage medium is contained in the energy storage device, and the evaporator is in contact with the energy storage medium to absorb heat of the energy storage medium; the energy storage device is connected with the processing chamber, and the energy storage medium can enter the processing chamber and clean the tableware through the spraying port. The invention adopts the heat pump heating system for absorbing the heat in the energy storage device, cancels the fan and has lower noise; through the mode that the cooling energy storage medium after will absorbing heat is leading-in to carry out the tableware washing in the treatment chamber, accomplish the renewal of energy storage medium, realize leading-in the purpose to the energy storage medium with external heat fast to borrow this and improve the heat energy deposit in the energy memory, promote the efficiency of follow-up heat pump heating.
Description
Technical Field
The invention belongs to the field of kitchen equipment, and particularly relates to a heat pump type dish washing machine and a control method.
Background
The dish washer is used for automatically cleaning tableware such as dish, chopsticks, dish, knife and fork, and can be divided into two types of box type and conveying type according to the structure. It reduces the labor intensity for the cooking personnel in dining room, hotel and dining room of office, improves the working efficiency and promotes the cleanness and sanitation. At present, various small dishwashers are on the market, and are gradually entering ordinary households.
The existing dish washer uses a heating pipe to supply water to the dish washer, the heating pipe is arranged in a water tank at the bottom of an inner container, and when in washing, the heating pipe is used for heating, and circulating water of a circulating pump is used for washing dishes. However, this method consumes much power and does not dry thoroughly.
In order to solve the problems, some dish washing machines adopting other heating modes exist at present, for example, the Chinese utility model patent with the application number of 201420465616.1 and the name of heat pump type dish washing machine provides a heat pump type dish washing machine, which comprises an inner container, a compressor, a condenser, a throttling device and an evaporator, wherein the condenser is arranged close to the outer wall of the inner container; the outlet of the compressor is connected with the inlet of the condenser, the outlet of the condenser is connected with the inlet of the evaporator through the throttling device, and the outlet of the evaporator is connected with the inlet of the compressor. The utility model discloses an energy resource consumption when saving the washing, the heat pump system that mainly comprises compressor, condenser, throttling arrangement and evaporimeter imbeds in the dish washer adopts copper pipe or aluminum pipe as heat pump system's condenser, closely pastes or twines the setting at the inner bag outer wall. The utility model discloses a having changed the mode that current dish washer adopted the heating pipe heating, having used heat pump system to the dish washer field, opened a brand-new heating and drying mode, very big reduction the consumption of the energy, and have better user experience.
However, the dishwasher generally performs a hot water washing process, a cold water rinsing process, and a final hot water rinsing process. After the first hot water washing operation, the water temperature in the energy storage tank is reduced, and if the hot water rinsing is performed again, the energy storage medium in the energy storage tank needs to be reheated, or the temperature of the energy storage medium needs to be raised for a long time. This affects the heating efficiency and speed of the last hot water rinse.
The present invention has been made in view of this situation.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a heat pump type dish washing machine and a control method, a heat pump heating system for absorbing heat in an energy storage device is adopted, a fan is omitted, and the noise is lower; through the mode that the cooling energy storage medium after will absorbing heat is leading-in to carry out the tableware washing in the treatment chamber, accomplish the renewal of energy storage medium, realize leading-in the purpose to the energy storage medium with external heat fast to borrow this and improve the heat energy deposit in the energy memory, promote the efficiency of follow-up heat pump heating.
In order to realize the purpose, the invention adopts the following technical scheme:
a heat pump type dish washing machine comprises a treatment chamber and a heat pump system for heating washing water, wherein a spraying port is arranged in the treatment chamber, and the spraying port sprays the washing water to clean tableware in the treatment chamber; the heat pump system comprises an evaporator, an energy storage medium is contained in an energy storage device, and the evaporator is in contact with the energy storage medium to absorb heat of the energy storage medium; the energy storage device is connected with the processing chamber, and the energy storage medium can enter the processing chamber and clean the tableware through the spraying port;
the energy storage device is provided with a liquid outlet, and the liquid outlet of the energy storage device is communicated with the treatment chamber through a first pipeline;
the treatment chamber guides the washing water into the treatment chamber through a water inlet waterway, and the energy storage device also comprises a liquid inlet which is communicated with the water inlet waterway through a second pipeline;
the treatment chamber is also communicated with the water inlet waterway through a third pipeline, and washing water can enter the treatment chamber through the third pipeline;
the third pipeline is respectively communicated with the first pipeline and the second pipeline.
Furthermore, the energy storage medium enters the processing chamber through the first pipeline, and a first control valve for controlling the on-off of the pipeline is arranged on the first pipeline.
Furthermore, the washing water can enter the energy storage device through the second pipeline to be mixed with the energy storage medium, and a second control valve for controlling the on-off of the pipeline is arranged on the second pipeline.
Furthermore, a third control valve for controlling the on-off of the pipeline is arranged on the third pipeline.
Further, when the third pipeline is communicated with the first pipeline and the second pipeline respectively, the third control valve is located between the positions where the third pipeline is communicated with the first pipeline and the second pipeline respectively, and when the third control valve is opened and the first control valve and the second control valve are closed, the energy storage device is short-circuited.
Further, the liquid inlet in the energy storage device is positioned at the upper part of the liquid outlet.
Further, the energy storage medium is a liquid capable of washing dishes.
A method of controlling a heat pump dishwasher, the method comprising controlling the energy storage medium to enter the treatment chamber by controlling the connection of the energy storage device to the treatment chamber and to the water inlet circuit, respectively.
Further, the energy storage medium is a liquid; by controlling the connection relationship between the water inlet waterway and the energy storage device, the washing water is introduced into the energy storage device and mixed with the energy storage medium; meanwhile, the energy storage medium squeezed out of the energy storage device flows into the processing chamber by controlling the connection relationship between the energy storage device and the processing chamber, and is used for cleaning the tableware in the processing chamber.
Further, the method controls the dishwasher to wash to sequentially perform at least one hot water washing process and one cold water rinsing process;
when the dishwasher executes a hot water washing process, the energy storage device is controlled to be short-circuited by a water inlet waterway, washing water does not enter the energy storage device, the evaporator is in contact with an energy storage medium to absorb heat of the energy storage medium, and the washing water heated by the heat pump system enters the treatment chamber through the water inlet waterway;
when the dishwasher executes a cold water rinsing process, the energy storage device is controlled to be communicated with the water inlet waterway and the treatment chamber respectively, washing water is introduced into the energy storage device to be mixed with the energy storage medium, and the energy storage medium extruded from the energy storage device flows into the treatment chamber for cleaning tableware in the treatment chamber.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.
According to the heat pump type dish washing machine and the control method, the heat pump heating system is adopted, and the energy consumption for heating washing water is reduced because the energy efficiency ratio of the heat pump system is high; and the heat pump is adopted to absorb heat in the energy storage device, compared with the common heat pump which absorbs heat in the air, the use of a fan is cancelled, and the noise is lower when the heat pump operates. Meanwhile, aiming at the condition that the heating efficiency of the heat pump is reduced when the external environment temperature is too low, the invention also realizes rapid heating in a direct electric heating mode, so that the dish-washing machine can efficiently heat washing water under different environment conditions.
In the invention, the evaporator is fully contacted with the energy storage medium in the energy storage device to realize the heat absorption of the evaporator. Because the energy storage medium of liquid that adopts among the energy memory, consequently can carry out more even heat transfer with the evaporimeter, further, in the technical scheme who adopts salt solution as energy storage medium, because salt solution and the heat conduction speed of evaporimeter are higher than the heat conduction speed of air and evaporimeter far away, consequently can promote heat pump heating device to the rate of heating of washing water by a wide margin, satisfy the technical requirement of user's rapid heating.
The invention adopts the liquid energy storage medium capable of cleaning tableware as the material for storing heat, and after the evaporator finishes absorbing heat to the energy storage device, the heat-losing and cooling energy storage medium is guided into the processing chamber through the pipeline control for cleaning tableware. And simultaneously, an energy storage medium in the energy storage device is replaced, so that the aim of rapidly guiding external heat into the energy storage device is fulfilled. The invention improves the heat energy storage in the energy storage device after heat absorption by the way, so that the heat energy of the energy storage device is quickly recovered. Thereby when guaranteeing that heat pump system heats the washing water again next time, the evaporimeter can still be fast, continue to absorb the heat that is used for heating the washing water from energy memory effectively. Thereby improving the efficiency of the heating operation of the whole heat pump.
Meanwhile, the invention realizes the heating of the washing water of the dish washer by combining a direct electric heating mode and a heat pump heating mode. The heating efficiency is greatly influenced by the external environment when the heat pump heating system is used for heating washing, and meanwhile, a richer heating control means is provided for users. The system selects different heating modes according to different external environmental conditions, realizes the high speed and high efficiency of heating the washing water of the dish-washing machine, reduces the waiting time for a user to use hot water, has good energy-saving effect and improves the user experience.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic diagram of a water circuit and structure of a heat pump dishwasher according to the present invention;
FIG. 2 is a schematic diagram of a water circuit and structure of a heat pump dishwasher performing a cold water rinse according to the present invention.
In the figure: 1. a water inlet valve; 2. a respirator; 3. draining pump; 4. a circulation pump; 5. a throttling element; 6. an evaporator; 7. an energy storage device; 8. a compressor; 9. a condenser; 10. an electric heater; 11. a spray port; 12. a water inlet waterway; 13. an energy storage medium; 14. a liquid inlet; 15. a liquid outlet; 16. a second pipeline; 17. a second control valve; 18. a first pipeline; 19. a first control valve; 20. a third pipeline; 21. a third control valve; 22. a processing chamber.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 2, the present invention discloses a heat pump dishwasher, comprising a treatment chamber 22 and a heat pump system for heating washing water, wherein a spray opening 11 is arranged in the treatment chamber 22, and the spray opening 11 sprays the washing water to clean tableware in the treatment chamber 22; the heat pump system comprises an evaporator 6, an energy storage medium 13 is contained in an energy storage device 7, and the evaporator 6 is in contact with the energy storage medium 13 to absorb heat of the energy storage medium 13; the energy storage device 7 is connected with the processing chamber 22, and the energy storage medium 13 can enter the processing chamber 22 to clean the tableware through the spraying opening 11. The invention adopts the heat pump heating system for absorbing the heat in the energy storage device, cancels the fan and has lower noise; through the mode that the cooling energy storage medium after will absorbing heat is leading-in to carry out the tableware washing in the treatment chamber, accomplish the renewal of energy storage medium, realize leading-in the purpose to the energy storage medium with external heat fast to borrow this and improve the heat energy deposit in the energy memory, promote the efficiency of follow-up heat pump heating.
Example 1
As shown in fig. 1, the present embodiment discloses a heat pump dishwasher including a process chamber 22; the treatment chamber 22 is provided with a spray opening 11 therein, and the spray opening 11 sprays the washing water provided by the water inlet path 12 to clean the tableware in the treatment chamber 22. The water inlet waterway 12 is connected with a water inlet valve 1, a respirator 2, a drainage pump 3, a circulating pump 4 and a spraying port 11. The washing water enters the water inlet waterway 12 through the water inlet valve 1, flows into the treatment chamber 22 with the tableware, circularly flows in the water inlet waterway 12 through the circulating pump 4, is sprayed on the tableware through the spraying port 11 to clean the tableware, discharges dirty water through the drainage pump 3 after the cleaning is finished, and the respirator 2 is used for preventing siphoning of the water inlet waterway 12.
The invention heats the washing water through the heating system in order to improve the cleaning effect of the dish-washing machine. The heating system comprises a heat pump system. As shown in fig. 1, the heat pump system comprises a heat pump working medium circuit connected with each other: throttling element 5, evaporator 6, compressor 8, condenser 9. The working principle of the heat pump system is that energy transfer is realized through conversion of a gas-liquid state of a working medium of the heat pump, specifically, high-pressure refrigerant steam discharged from a compressor 8 flows into a condenser 9, the refrigerant steam is condensed to release latent heat, the condensed liquid refrigerant flows through a throttling element 5 to enter an evaporator 6, the evaporator 6 absorbs external heat to evaporate, and the evaporated steam is sucked by the compressor to complete a heating cycle.
The present invention heats the washing water by using the latent heat released from the condenser 9. The condenser 9 of the present invention is a double pipe heat exchanger, which comprises an inner pipe and an outer pipe, wherein the inner pipe is communicated with a water inlet waterway 12, and the outer pipe is communicated with a working medium of a heat pump. When the washing water flows through the inner tube of the double pipe heat exchanger, the heat pump working medium in the pipe of the condenser 9 releases latent heat, heating the washing water in the inner tube. The circulating pump 4 on the water inlet waterway 12 drives the washing water to flow in the water inlet waterway 12, thereby realizing the heating of the washing water in the dishwasher.
In order to reduce noise generated during operation of the heat pump and improve the heat exchange speed of the heat pump, the heat pump system further comprises an energy storage device 7, an energy storage medium 13 is contained in the energy storage device 7, and the evaporator 6 is in contact with the energy storage medium 13 to absorb heat of the energy storage medium 13. In the invention, the evaporator 6 directly absorbs the heat of the energy storage medium 13, and the energy storage medium 13 exchanges heat with the external environment to absorb the heat of the external environment.
As shown in the figure, the energy storage device 7 of the present invention has a chamber therein, the energy storage medium 13 is disposed in the chamber, and the evaporator 6 is disposed in the chamber and is in contact with the energy storage medium 13 to realize heat exchange. The heat pump system of the present invention further includes a heating device, which is located on the water inlet path 12 and assists or is independent of the heat pump system to heat the washing water.
In this embodiment, the heating device is an electric heater 10 composed of an electric heating tube. The electric heater 10 is positioned on the washing water circuit between the water outlet of the circulating pump 4 and the spraying port 11. The electric heater 10 may cooperate with a heat pump system to heat the wash water in the inlet water circuit 12.
The electric heater 10 can also be used for heating the washing water independently, and particularly when the external environment temperature is lower than the freezing point of the energy storage medium 13 and the energy storage medium 13 is frozen to cause the heat pump system to be incapable of working normally, the electric heater 10 is started to heat the washing water in the water inlet water path 12, so that the purpose of heating the washing water is achieved.
The electric heater 10 in this embodiment may be located outside the washing water path, and may heat the washing water indirectly by heating the washing water path, or may heat the washing water by directly heating the washing water.
In other embodiments, the electric heater 10 may also be a heating device using other means, such as gas heating, and the disposition and control method thereof are the same as those of the present embodiment, and will not be described herein again.
As shown in fig. 1 and 2, the energy storage device 7 in this embodiment is connected to the processing chamber 22, and the energy storage medium 13 can enter the processing chamber 22 to clean the dishes through the spraying port 11. The energy storage medium 13 in this embodiment is a liquid capable of washing dishes; preferably, the energy storage medium 13 is washing water. The washing water may be tap water which is generally used because tap water itself has a large heat capacity and also functions to store heat energy.
Since the dishwasher generally performs a hot water washing process, a cold water rinsing process, and a final hot water rinsing process. After the first hot water washing operation, the water temperature in the energy storage device is reduced, and if hot water rinsing is performed again, the energy storage medium in the energy storage tank needs to be reheated, or the temperature of the energy storage medium needs to be raised for a long time. This affects the heating efficiency and speed of the last hot water rinse. Therefore, after the evaporator absorbs heat of the energy storage device, the energy storage medium cooled by losing heat is guided into the processing chamber through the pipeline control for cleaning tableware. And simultaneously, an energy storage medium in the energy storage device is replaced, so that the aim of rapidly guiding external heat into the energy storage device is fulfilled. The invention improves the heat energy storage in the energy storage device after heat absorption by the way, so that the heat energy of the energy storage device is quickly recovered. Thereby when guaranteeing that heat pump system heats the washing water again next time, the evaporimeter can still be fast, continue to absorb the heat that is used for heating the washing water from energy memory effectively. Thereby improving the efficiency of the heating operation of the whole heat pump.
Specifically, as shown in fig. 1 and fig. 2, a liquid outlet 15 is formed in the energy storage device 7 of this embodiment, the liquid outlet 15 of the energy storage device 7 is communicated with a processing chamber 22 through a first pipeline 18, the energy storage medium 13 enters the processing chamber 22 through the first pipeline 18, and a first control valve 19 for controlling on and off of the first pipeline 18 is arranged on the first pipeline 18.
Simultaneously, the treatment chamber 22 is leading-in to the treatment chamber 22 in through intaking water route 12 washing water, energy memory 7 still includes inlet 14, inlet 14 through second pipeline 16 with intake water route 12 intercommunication, the washing water can pass through second pipeline 16 enters into in the energy memory 7 with energy storage medium 13 mixes, is provided with the second control flap 17 that is used for controlling this pipeline break-make on the second pipeline 16.
And, the treatment chamber 22 is also communicated with the water inlet circuit 12 through a third pipeline 20, and the washing water can enter into the treatment chamber 22 through the third pipeline 20; the third pipeline 20 is provided with a third control valve 21 for controlling the on-off of the pipeline.
In this embodiment, as shown in fig. 1, the third pipeline 20 is in communication with the first pipeline 18 and the second pipeline 16, respectively. The third control valve 21 is located between the positions where the third line 20 communicates with the first line 18 and the second line 16, respectively, and the energy storage device 7 is short-circuited when the third control valve 21 is open and the first control valve 19 and the second control valve 17 are closed. At this time, the washing water directly enters the processing chamber through the water inlet waterway without entering the energy storage device, and is heated through the heat pump heating process, so that the hot water washing process of the tableware is completed.
In this embodiment, the volume of the energy storage device 7 is constant, and as shown in the figure, the liquid inlet 14 is located at the upper part of the liquid outlet 15 in the energy storage device 7. Therefore, as shown in fig. 2, when the third control valve 21 in the above-mentioned pipeline is closed and the first control valve 19 and the second control valve 17 are opened, when the washing water enters the energy storage device 7 from the upper liquid inlet 14 through the conducted second pipeline 16, the original energy storage medium 13 in the energy storage device 7 is squeezed out from the liquid outlet 15 at the lower part of the energy storage device 7 and enters the first pipeline 18. The liquid of the energy storage medium 13 passes through the first control valve 19 and into the treatment chamber 22 to complete the cold water rinse of the dishes. The advantage of the embodiment of the energy storage device 7 in which the inlet opening 14 is located above the outlet opening 15 is also that it facilitates the complete discharge of the energy storage medium 13. The energy storage medium 13 in the energy storage device 7, which has absorbed heat, is completely discharged to the treatment chamber 22, and the heat in the energy storage device 7 is recovered with the newly added washing water.
In order to accomplish the above-mentioned water path control process, as shown in fig. 1 and 2, the third control valve 21 is located at an upstream position of the first control valve 22 on the inlet water path 12.
Example 2
This embodiment is a further explanation of the control method for controlling the dishwasher in embodiment 1. The control method of the embodiment controls the energy storage medium to enter the treatment chamber by controlling the connection relation between the energy storage device and the treatment chamber and the water inlet waterway. The method controls the dishwasher to wash at least one hot water washing process and one cold water rinsing process in sequence.
The energy storage medium is liquid, and preferably, the energy storage medium is washing water. By controlling the connection relationship between the water inlet waterway and the energy storage device, the washing water is introduced into the energy storage device and mixed with the energy storage medium; meanwhile, the energy storage medium squeezed out of the energy storage device flows into the processing chamber by controlling the connection relationship between the energy storage device and the processing chamber, and is used for cleaning the tableware in the processing chamber.
Specifically, when the dishwasher executes a hot water washing process, the energy storage device is controlled to be short-circuited by a water inlet waterway, washing water does not enter the energy storage device, the evaporator is in contact with an energy storage medium to absorb heat of the energy storage medium, and the washing water heated by the heat pump system enters the treatment chamber through the water inlet waterway;
when the dishwasher executes a cold water rinsing process, the energy storage device is controlled to be communicated with the water inlet waterway and the treatment chamber respectively, washing water is introduced into the energy storage device to be mixed with the energy storage medium, and the energy storage medium extruded from the energy storage device flows into the treatment chamber for cleaning tableware in the treatment chamber.
When the dishwasher executes the hot water washing process again, the hot water washing process is repeated, at the moment, because the energy storage medium in the energy storage device is replaced through the cold water rinsing process and the heat energy of the energy storage device is recovered through the introduction of the washing water, the heat energy efficiency in the energy storage device absorbed by the evaporator is obviously improved when the heat pump is used for heating at the moment.
Example 3
The present embodiment is a supplement to the control method of the above embodiment, and in the present embodiment, the heat pump type dishwasher starts heating washing, and automatically selects to use the heat pump system and/or the electric heater to heat the washing water path.
In order to realize the technical scheme of the automatic selection heating system of the heat pump type dishwasher with automatic control, the heat pump type dishwasher comprises a temperature detection device for detecting the ambient temperature. And the heat pump type dish washing machine automatically selects and uses the heat pump system and/or the electric heater to heat the washing water channel according to the comparison result of the ambient temperature detected by the temperature detection device and the temperature of the energy storage medium in the energy storage device.
Specifically, when the ambient temperature is higher than the freezing point temperature of the washing water, the energy storage medium and the washing water are both in liquid state, the heat pump can work normally, the evaporator absorbs heat from the energy storage medium in the energy storage device, and the condenser heats the washing water. The heat pump heating mode has high heat exchange efficiency and is a heating scheme which is preferentially used, so that the control device of the dishwasher automatically adopts the heat pump system to heat the washing water at the moment.
Of course, in order to accelerate the temperature rise of the washing water, the electric heater can be simultaneously turned on at the same time, so that the heat pump system and the electric heater simultaneously heat the washing water channel, and the temperature of the washing water is rapidly raised.
In this embodiment, when the ambient temperature is less than the freezing point temperature of washing water, because energy storage medium and washing water have all solidified this moment, the heat pump system can't normally work, and the dish washer adopts the method that the control simply used electric heater to heat the washing water route this moment, satisfies the requirement of dish washer washing water heating.
The dishwasher in the embodiment automatically selects different washing water heating modes according to the change of the ambient temperature, so as to improve the heating efficiency of the dishwasher.
Example 4
The present embodiment is different from embodiment 3 in that the different heating modes in the present embodiment are realized according to control instructions. In this embodiment, the heating control program for the dishwasher has three different heating modes, which are: heat pump heating mode, electric heating mode, instant heating mode.
The heat pump heating mode is that the heat pump heating system is used for heating the washing water; the electric heating mode is that the washing water is heated by only using an electric heater; the quick heating mode is to heat the washing water by simultaneously starting the heat pump heating system and the electric heater. The user selects the three different heating modes to heat the washing water in the dishwasher through own selection.
Of course, an alarm device is further provided to ensure the system security in this embodiment. When the external environment does not meet the starting requirement of the heat pump, the warning device reminds the user of the current environment state, so that the user can conveniently select a specific heating mode.
Example 5
This embodiment is complementary to the electric heater of the above-described embodiment.
The electric heater in this embodiment does not simply heat the washing water, but heats the energy storage medium while heating the washing water, so as to raise the temperature of the energy storage medium.
In the embodiment, the temperature difference between the evaporator and the energy storage medium in the heat pump system is improved by fully utilizing the redundant heat of the electric heater and utilizing the method of heating the energy storage medium by the electric heater, so that the working efficiency of heat absorption of the evaporator is improved, and the heating of the washing water reaches the optimal balance in the adjustment of electric heating and heat pump system heating.
Example 6
This example is complementary to example 5.
In this embodiment, the dishwasher is provided with a controller inside, and temperature detection devices are respectively placed in the energy storage medium, the washing water and the external environment, and are electrically connected with the controller, and the controller receives the temperature information detected by the temperature detection devices.
The electric heating device comprises a first electric heating device which is arranged on the energy storage device and used for heating the energy storage medium; and a second electric heating device arranged on the washing water circuit and used for heating the washing water. The first and second electric heating means may be adjustable by the controller.
The controller controls and adjusts the power of the first electric heating device and the power of the second electric heating device according to the mutual relation of the electric quantity consumed by the first electric heating device, the electric quantity consumed by the operation of the heat pump system and the electric quantity consumed by the second electric heating device and the temperature information detected by the temperature detection device. Therefore, the mutual relation between the heat pump heating system and the electric heater is comprehensively coordinated, the washing water can be rapidly heated, the reasonable distribution of the electric quantity under different external environment temperature conditions can be met, and the purposes of high efficiency and energy conservation are achieved.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A heat pump type dish washing machine comprises a treatment chamber and a heat pump system for heating washing water, wherein a spraying port is arranged in the treatment chamber, and the spraying port sprays the washing water to clean tableware in the treatment chamber; the heat pump system is characterized by comprising an evaporator, wherein an energy storage medium is contained in an energy storage device, and the evaporator is in contact with the energy storage medium to absorb heat of the energy storage medium; the energy storage device is connected with the processing chamber, and the energy storage medium can enter the processing chamber and clean the tableware through the spraying port;
the energy storage device is provided with a liquid outlet, and the liquid outlet of the energy storage device is communicated with the treatment chamber through a first pipeline;
the treatment chamber guides the washing water into the treatment chamber through a water inlet waterway, and the energy storage device also comprises a liquid inlet which is communicated with the water inlet waterway through a second pipeline;
the treatment chamber is also communicated with the water inlet waterway through a third pipeline, and washing water can enter the treatment chamber through the third pipeline;
the third pipeline is respectively communicated with the first pipeline and the second pipeline.
2. A heat pump dishwasher according to claim 1, characterized in that the energy storage medium is fed into the treatment chamber via the first line, which is provided with a first control valve for controlling the opening and closing of the line.
3. A heat pump dishwasher according to claim 1, wherein the washing water is able to enter the energy storage device via the second line and mix with the energy storage medium, and the second line is provided with a second control valve for controlling the opening and closing of the second line.
4. A heat pump dishwasher according to claim 3, wherein the third line is provided with a third control valve for controlling the opening and closing of the line.
5. A heat pump dishwasher according to claim 4, wherein the third control valve is located between the positions at which the third line communicates with the first and second lines, respectively, when the third line communicates with the first and second lines, respectively, the energy storage device being short circuited when the third control valve is open and the first and second control valves are closed.
6. A heat pump dishwasher according to claim 1, wherein the inlet port is located in an upper portion of the outlet port in the energy storage device.
7. A heat pump dishwasher according to claim 1, wherein the energy storage medium is a liquid capable of washing dishes.
8. A method of controlling a heat pump dishwasher according to any one of claims 1 to 7, comprising controlling the introduction of the energy storage medium into the treatment chamber by controlling the connection of the energy storage means to the treatment chamber and to the water inlet circuit, respectively.
9. The control method according to claim 8, characterized in that the energy storage medium is a liquid; by controlling the connection relationship between the water inlet waterway and the energy storage device, the washing water is introduced into the energy storage device and mixed with the energy storage medium; meanwhile, the energy storage medium squeezed out of the energy storage device flows into the processing chamber by controlling the connection relationship between the energy storage device and the processing chamber, and is used for cleaning the tableware in the processing chamber.
10. The control method according to claim 9, wherein the method controls the dishwasher to wash at least one hot water washing course and one cold water rinsing course sequentially in sequence;
when the dishwasher executes a hot water washing process, the energy storage device is controlled to be short-circuited by a water inlet waterway, washing water does not enter the energy storage device, the evaporator is in contact with an energy storage medium to absorb heat of the energy storage medium, and the washing water heated by the heat pump system enters the treatment chamber through the water inlet waterway;
when the dishwasher executes a cold water rinsing process, the energy storage device is controlled to be communicated with the water inlet waterway and the treatment chamber respectively, washing water is introduced into the energy storage device to be mixed with the energy storage medium, and the energy storage medium extruded from the energy storage device flows into the treatment chamber for cleaning tableware in the treatment chamber.
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| CN201710686177.5A CN109381145B (en) | 2017-08-11 | 2017-08-11 | Heat pump type dish washing machine and control method |
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| CN201710686177.5A CN109381145B (en) | 2017-08-11 | 2017-08-11 | Heat pump type dish washing machine and control method |
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| CN109381145B true CN109381145B (en) | 2021-07-23 |
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| WO2024041072A1 (en) * | 2022-08-23 | 2024-02-29 | 佛山市顺德区美的洗涤电器制造有限公司 | Heat pump dishwasher |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1080391A (en) * | 1996-09-10 | 1998-03-31 | Hoshizaki Electric Co Ltd | Warm water generating apparatus of tableware washing machine |
| EP2096203A1 (en) * | 2009-05-28 | 2009-09-02 | V-Zug AG | Household washing machine with heat pump |
| CN102149864A (en) * | 2008-09-10 | 2011-08-10 | Bsh博世和西门子家用器具有限公司 | Device for heating process water for a water-carrying household appliance for the care of laundry items, and household appliance having such a device |
| CN103298390A (en) * | 2010-12-29 | 2013-09-11 | 伊莱克斯家用产品公司 | A household appliance |
| CN105392937A (en) * | 2013-06-11 | 2016-03-09 | 伊莱克斯家用电器股份公司 | Washing machine |
| CN105463762A (en) * | 2014-08-08 | 2016-04-06 | 博西华电器（江苏）有限公司 | Clothes processing equipment and control method |
-
2017
- 2017-08-11 CN CN201710686177.5A patent/CN109381145B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1080391A (en) * | 1996-09-10 | 1998-03-31 | Hoshizaki Electric Co Ltd | Warm water generating apparatus of tableware washing machine |
| CN102149864A (en) * | 2008-09-10 | 2011-08-10 | Bsh博世和西门子家用器具有限公司 | Device for heating process water for a water-carrying household appliance for the care of laundry items, and household appliance having such a device |
| EP2096203A1 (en) * | 2009-05-28 | 2009-09-02 | V-Zug AG | Household washing machine with heat pump |
| CN103298390A (en) * | 2010-12-29 | 2013-09-11 | 伊莱克斯家用产品公司 | A household appliance |
| CN105392937A (en) * | 2013-06-11 | 2016-03-09 | 伊莱克斯家用电器股份公司 | Washing machine |
| CN105463762A (en) * | 2014-08-08 | 2016-04-06 | 博西华电器（江苏）有限公司 | Clothes processing equipment and control method |
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| CN109381145A (en) | 2019-02-26 |
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