CN107023916B - Operation control method of air conditioner and refrigerator integrated machine - Google Patents
Operation control method of air conditioner and refrigerator integrated machine Download PDFInfo
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- CN107023916B CN107023916B CN201710214074.9A CN201710214074A CN107023916B CN 107023916 B CN107023916 B CN 107023916B CN 201710214074 A CN201710214074 A CN 201710214074A CN 107023916 B CN107023916 B CN 107023916B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0096—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater combined with domestic apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/12—Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/003—Arrangement or mounting of control or safety devices for movable devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an operation control method of an air conditioner and refrigerator all-in-one machine, which comprises the following steps: controlling the heating operation of the air conditioner and refrigerator integrated machine; the first control valve, the fourth control valve, the fifth control valve, the sixth control valve and the seventh control valve are controlled to be opened, the second control valve and the third control valve are closed, the outdoor heat exchanger, the indoor heat exchanger and the refrigerator are controlled to be opened, and the compressor is controlled to run at high frequency; controlling the first bypass valve and the second bypass valve to be closed; judging whether the freezing area and the refrigerating area of the refrigerator reach set temperatures or not, and/or acquiring temperature deviation pn between indoor environment temperature and the set temperatures; and controlling the running state of the air conditioner and refrigerator all-in-one machine according to the detection result. The operation control method of the air conditioner and refrigerator all-in-one machine can realize the complementation of the functions of the air conditioner and the refrigerator and improve the overall operation efficiency.
Description
Technical Field
The invention relates to the technical field of air conditioning, in particular to an operation control method of an air conditioner and refrigerator all-in-one machine.
Background
The existing air conditioner and the refrigerator are two independent refrigerating devices, the annual service time of the air conditioner is averagely less than 30%, the utilization rate of the refrigerator is relatively long, but the refrigerator is basically in a shutdown state in winter in the north. The annual utilization rate of the two refrigeration household appliances is not high, and if the two refrigeration household appliances can be combined into one, a large amount of energy and material cost can be saved.
Therefore, how to reasonably integrate the refrigerator and the air conditioner, realize function complementation and improve the overall operation efficiency is a problem to be solved urgently at present.
Disclosure of Invention
The invention aims to provide an operation control method of an air conditioner and refrigerator all-in-one machine, which can realize the complementation of the functions of the air conditioner and the refrigerator and improve the overall operation efficiency.
According to one aspect of the invention, the operation control method of the air conditioner and refrigerator all-in-one machine comprises the following steps: controlling the heating operation of the air conditioner and refrigerator integrated machine; the first control valve, the fourth control valve, the fifth control valve, the sixth control valve and the seventh control valve are controlled to be opened, the second control valve and the third control valve are closed, the outdoor heat exchanger, the indoor heat exchanger and the refrigerator are controlled to be opened, and the compressor is controlled to run at high frequency; controlling the first bypass valve and the second bypass valve to be closed; judging whether the freezing area and the refrigerating area of the refrigerator reach set temperatures or not, and/or acquiring temperature deviation pn between indoor environment temperature and the set temperatures; and controlling the running state of the air conditioner and refrigerator all-in-one machine according to the detection result.
Preferably, the step of controlling the operation state of the air conditioner and refrigerator all-in-one machine according to the detection result comprises: when the freezing area and the refrigerating area of the refrigerator reach the set temperature or the temperature deviation pn < T2, the first control valve, the fourth control valve, the fifth control valve, the sixth control valve and the seventh control valve are controlled to be opened, the second control valve and the third control valve are controlled to be closed, the refrigerator and the indoor heat exchanger are controlled to be opened, and the intermediate frequency operation of the compressor is controlled.
Preferably, the step of controlling the operation state of the air conditioner and refrigerator integrated machine according to the detection result further includes: when the freezing area and the refrigerating area of the refrigerator reach the set temperature and the temperature deviation pn is less than T2, the first control valve, the fourth control valve, the fifth control valve, the sixth control valve and the seventh control valve are controlled to be opened, the second control valve and the third control valve are controlled to be closed, the refrigerator and the indoor heat exchanger are controlled to be opened, and the low-frequency operation of the compressor is controlled.
Preferably, the operation control method further includes: controlling the air conditioner and refrigerator integrated machine to perform refrigeration operation; detecting whether the freezing area and the refrigerating area reach set temperature or not; when the freezing area and the refrigerating area do not reach the set temperature, controlling the first control valve, the fourth control valve and the sixth control valve to be opened, closing the second control valve, the third control valve, the fifth control valve and the seventh control valve, controlling the indoor heat exchanger to be closed, closing the first bypass valve and the second bypass valve, starting the refrigerator and controlling the compressor to run at high frequency; and when the freezing area and the refrigerating area reach the set temperature, controlling the first control valve, the second control valve, the third control valve and the sixth control valve to be fully opened, and opening the a/b of the fourth control valve to simultaneously open the indoor heat exchanger and the refrigerator.
Preferably, after the freezing zone and the refrigerating zone reach the set temperature, the operation control method further includes: detecting the temperature deviation pn between the indoor environment temperature and the set temperature; when the temperature deviation pn is less than T1, the first control valve, the second control valve, the third control valve, the fourth control valve and the sixth control valve are controlled to be fully opened, and the low-frequency operation of the compressor is controlled.
Preferably, when the freezing area and the refrigerating area do not reach the set temperature, the first control valve, the fourth control valve and the sixth control valve are controlled to be opened, the second control valve, the third control valve, the fifth control valve and the seventh control valve are controlled to be closed, the indoor heat exchanger is controlled to be closed, the refrigerator is controlled to be opened, and the compressor is controlled to run at a high frequency.
Preferably, a/b is 1/4.
Preferably, T1 is 1 ℃.
Preferably, T2 is 2 ℃.
According to the technical scheme of the invention, when the air conditioner and refrigerator integrated machine runs for heating, the air conditioner and the refrigerator are simultaneously opened, the outdoor heat exchanger and the indoor heat exchanger are controlled to run, the refrigerator is controlled to run for refrigeration, the characteristics of common heat release and condensation of the indoor heat exchanger and the outdoor heat exchanger and heat absorption and evaporation of a refrigeration area of the refrigerator are utilized, the cold quantity required by refrigeration of the refrigerator is provided by running the outdoor heat exchanger and the indoor heat exchanger, the load of the outdoor heat exchanger is reduced, the functions of the refrigerator and the air conditioner can be complemented, the heat absorption and heat exchange energy can be more reasonably distributed, the running energy efficiency of the air conditioner and refrigerator integrated machine can be effectively improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a schematic structural diagram of an air conditioner and refrigerator all-in-one machine according to an embodiment of the invention; and
fig. 2 is a flowchart of an operation control method of an air conditioner and refrigerator all-in-one machine according to an embodiment of the present invention.
Description of reference numerals: 10. a compressor; 20. an outdoor heat exchanger; 30. an indoor heat exchanger; 40. a refrigerator; 41. a refrigeration zone; 411. a cold storage area; 412. a freezing zone; 42. a thawing zone; 50. a four-way reversing valve; 60. a throttling device; 01. a first bypass valve; 02. a second bypass valve; 1. a first control valve; 2. a second control valve; 3. a third control valve; 4. a fourth control valve; 5. a fifth control valve; 6. a sixth control valve; 7. a seventh control valve.
Detailed Description
The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of embodiments of the invention encompasses the full ambit of the claims, as well as all available equivalents of the claims. Embodiments may be referred to herein, individually or collectively, by the term "invention" merely for convenience and without intending to voluntarily limit the scope of this application to any single invention or inventive concept if more than one is in fact disclosed. Herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. As for the methods, products and the like disclosed by the embodiments, the description is simple because the methods correspond to the method parts disclosed by the embodiments, and the related parts can be referred to the method parts for description.
As shown in fig. 1, a first embodiment of the present invention discloses an air conditioner and refrigerator all-in-one machine, which includes a compressor 10, an outdoor heat exchanger 20, an indoor heat exchanger 30 and a refrigerator 40, wherein the refrigerator 40 includes a refrigeration area 41 and a thawing area 42, the refrigeration area 41 includes a freezing area 412 and a storage area 411, the thawing area 42 is arranged corresponding to the freezing area 412, a bypass pipeline is connected between the compressor 10 and the thawing area 42, an exhaust port of the compressor 10 is connected to an inlet of the thawing area 42 through the bypass pipeline, and a return port of the compressor 10 is connected to an outlet of the thawing area 42 through the bypass pipeline.
In the invention, the high-temperature and high-pressure gas in the compressor 10 can flow into the unfreezing zone 42 through the bypass pipeline, so that the temperature in the unfreezing zone 42 is raised, the purpose of unfreezing is achieved, and the cooled gas after unfreezing can return to the compressor 10 through the outlet of the unfreezing zone 42 and the bypass pipeline for recompression, so that the unfreezing is carried out without electric heating, the unfreezing cost can be saved, the unfreezing efficiency can be improved, the unfreezing energy consumption is reduced, and the safety problem caused by electric leakage is avoided.
Optionally, as shown in fig. 1, in the above embodiment, a first bypass valve 01 is disposed on the bypass line at the air outlet of the compressor 10, and the opening degree of the first bypass valve 01 is adjustable.
In the above embodiment, the high-temperature and high-pressure gas in the compressor 10 can be controlled to flow to the thawing zone 42 through the bypass pipeline by controlling the opening and closing of the first bypass valve 01, and the flow rate of the high-temperature and high-pressure gas flowing into the thawing zone 42 can be controlled by controlling the opening degree of the first bypass valve 01, so that different thawing requirements can be met, and an energy-saving effect can be achieved.
Optionally, as shown in fig. 1, a second bypass valve 02 is disposed on a bypass line at the air return port of the compressor 10, and an opening degree of the second bypass valve 02 is adjustable.
In the above embodiment, the flow of the gas in the thawing zone 42 into the compressor 10 can be controlled by controlling the opening and closing of the second bypass valve 02, and the flow rate of the gas returning from the thawing zone 42 to the compressor 10 can be controlled by controlling the opening degree of the second bypass valve 02, so that not only different thawing requirements can be satisfied, but also the effect of energy saving can be achieved.
Optionally, as shown in fig. 1, a four-way reversing valve 50 is connected between the compressor 10 and the indoor heat exchanger 30 and the outdoor heat exchanger 20, the refrigeration region 41 is connected to a first interface of the four-way reversing valve 50 through a first pipeline, a first end of the indoor heat exchanger 30 is connected to the first interface of the four-way reversing valve 50 through a second pipeline, a sixth pipeline is connected between the outdoor heat exchanger 20 and the indoor heat exchanger 30, a first end of the sixth pipeline is connected to the outdoor heat exchanger 20, a second end of the sixth pipeline is connected to a second end of the indoor heat exchanger 30 through a third pipeline, a second end of the sixth pipeline is connected to the refrigeration region 41 through a fourth pipeline, a first end of the indoor heat exchanger 30 is connected to a second interface of the four-way reversing valve through a fifth pipeline, the first pipeline is provided with a first control valve 1, the second pipeline is provided with a second control valve 2, the third pipeline is provided with a, and a fourth control valve 4 is arranged on the fourth pipeline, a fifth control valve 5 is arranged on the fifth pipeline, and a sixth control valve 6 and a throttling device 60 are arranged on the sixth pipeline.
In the above embodiment, the opening and closing of the indoor heat exchanger 30, cooling and heating can be controlled by opening the second, third and sixth control valves 2, 3 and 6 and controlling the four-way selector valve 50, and the opening and closing of the refrigerator 40 can be controlled by opening the first, sixth and fourth control valves 1, 6 and 4. The throttling device 60 may be an electronic expansion valve, a capillary tube, or the like, and is not limited herein as long as the purpose of throttling can be achieved.
Optionally, as shown in fig. 1, a seventh pipeline is further connected to the second end of the indoor heat exchanger 30 of the air conditioner, the other end of the seventh pipeline is connected to the sixth pipeline between the sixth control valve 6 and the throttling device 60, and a seventh control valve 7 is disposed on the seventh pipeline.
In the above embodiment, by opening the first control valve 1, the fourth control valve 4, the fifth control valve 5 and the seventh control valve 7, the indoor heat exchanger and the refrigerator can be opened at the same time, and heating of the indoor heat exchanger and cooling of the refrigerator are realized.
Referring to fig. 1 and fig. 2 in combination, an embodiment of the present invention provides an operation control method for an air conditioner and refrigerator all-in-one machine, including: controlling the heating operation of the air conditioner and refrigerator integrated machine; controlling the first control valve 1, the fourth control valve 4, the fifth control valve 5, the sixth control valve 6 and the seventh control valve 7 to be opened, the second control valve 2 and the third control valve 3 to be closed, controlling the outdoor heat exchanger 20, the indoor heat exchanger 30 and the refrigerator 40 to be opened, and controlling the compressor 10 to run at a high frequency; controlling the first bypass valve 01 and the second bypass valve 02 to be closed; judging whether the freezing area 412 and the refrigerating area 411 of the refrigerator reach set temperatures or not and/or acquiring the temperature deviation pn between the indoor environment temperature and the set temperatures; and controlling the running state of the air conditioner and refrigerator all-in-one machine according to the detection result.
When the air conditioner and refrigerator all-in-one machine runs for heating, the air conditioner and the refrigerator are simultaneously opened, the outdoor heat exchanger and the indoor heat exchanger are controlled to run, the refrigerator is controlled to run for refrigeration, the characteristics of common heat release and condensation of the indoor heat exchanger and heat absorption and evaporation of a refrigeration area of the refrigerator are utilized, the cold quantity required by the refrigeration of the refrigerator is provided by the running of the outdoor heat exchanger and the indoor heat exchanger, and the cold quantity generated by the outdoor heat exchanger and the indoor heat exchanger is provided for the refrigerator, so that the load of the outdoor heat exchanger can be reduced by utilizing the cold quantity generated by the indoor heat exchanger, the functions of the refrigerator and the air conditioner can be complemented, the heat absorption and heat exchange energy can be more reasonably distributed, the running energy efficiency of.
When the air conditioner operates to heat, because the first control valve 1, the fourth control valve 4, the fifth control valve 5, the sixth control valve 6 and the seventh control valve 7 are opened, and the second control valve 2 and the third control valve 3 are closed, after flowing out of the exhaust port of the compressor 10, the refrigerant is divided into two paths after passing through the four-way reversing valve 50, one path enters the indoor heat exchanger 30 after passing through the fifth control valve 5, exchanges heat with indoor air in the indoor heat exchanger 30, releases heat and condenses, and then flows through the seventh control valve 7; the other path of the refrigerant directly enters the outdoor heat exchanger 20 to be condensed and released, exchanges heat with outdoor air, flows out through the sixth control valve 6, converges with the first path of the refrigerant, enters the throttling device 60 to be throttled, enters the freezing area 412 and the refrigerating area 411 to be evaporated, absorbs heat and refrigerates, and then flows back to the compressor 10 through the first control valve 1 and the four-way reversing valve 50 to perform circulating work.
The step of controlling the running state of the air conditioner and refrigerator integrated machine according to the detection result comprises the following steps: when the freezing area and the refrigerating area of the refrigerator reach the set temperature or the temperature deviation pn < T2, the first control valve, the fourth control valve, the fifth control valve, the sixth control valve and the seventh control valve are controlled to be opened, the second control valve and the third control valve are controlled to be closed, the refrigerator and the indoor heat exchanger are controlled to be opened, and the intermediate frequency operation of the compressor is controlled.
When the freezing area 412 and the refrigerating area 411 of the refrigerator 40 reach the set temperature or the temperature deviation pn is less than T2, it indicates that the refrigerating temperature in the refrigerator reaches the set temperature, or the indoor temperature basically reaches the temperature required by the user, so that the current operation state can be maintained only by a small amount of heat exchange, at this time, the frequency reduction processing can be performed on the compressor 10, so that the compressor 10 is in intermediate-frequency operation, and therefore the indoor temperature and the temperatures of the freezing area 412 and the refrigerating area 411 in the refrigerator can reach the requirements, or the indoor temperature can meet the requirements of the user, the energy consumption of the compressor 10 can be reduced, and the work energy efficiency of the air-conditioning and refrigerator all-in-one machine can be improved.
The step of controlling the running state of the air conditioner and refrigerator integrated machine according to the detection result further comprises the following steps: when the freezing area and the refrigerating area of the refrigerator reach the set temperature and the temperature deviation pn is less than T2, the first control valve, the fourth control valve, the fifth control valve, the sixth control valve and the seventh control valve are controlled to be opened, the second control valve and the third control valve are controlled to be closed, the refrigerator and the indoor heat exchanger are controlled to be opened, and the low-frequency operation of the compressor is controlled.
When the freezing area and the refrigerating area of the refrigerator reach the set temperature and the temperature deviation pn is less than T2, the refrigerating temperature in the refrigerator reaches the set temperature and the indoor temperature basically reaches the temperature required by a user, so that the energy required for maintaining the current operation state is less, the frequency reduction treatment can be continuously carried out on the compressor 10 at the moment, the compressor 10 is in low-frequency operation, the indoor temperature and the temperatures of the freezing area 412 and the refrigerating area 411 in the refrigerator can reach the requirements, the indoor temperature can meet the requirements of the user, the energy consumption of the compressor 10 can be further reduced, and the work energy efficiency of the air-conditioning and refrigerator all-in-one machine is improved.
The operation control method further includes: controlling the air conditioner and refrigerator integrated machine to perform refrigeration operation; detecting whether the freezing area and the refrigerating area reach set temperature or not; when the freezing area and the refrigerating area do not reach the set temperature, controlling the first control valve, the fourth control valve and the sixth control valve to be opened, closing the second control valve, the third control valve, the fifth control valve and the seventh control valve, controlling the indoor heat exchanger to be closed, closing the first bypass valve and the second bypass valve, starting the refrigerator and controlling the compressor to run at high frequency; and when the freezing area and the refrigerating area reach the set temperature, controlling the first control valve, the second control valve, the third control valve and the sixth control valve to be fully opened, and opening the a/b of the fourth control valve to simultaneously open the indoor heat exchanger and the refrigerator. The control valve is, for example, a solenoid valve.
When the freezing area 412 and the refrigerating area 411 do not reach the set temperature, the refrigerator can be operated to refrigerate by opening the first control valve 1, the fourth control valve 4 and the sixth control valve 6, the indoor heat exchanger can be closed by closing the second control valve 2, the third control valve 3, the fifth control valve 5, the seventh control valve 7 and the indoor heat exchanger 30, so that the refrigerator and air conditioner all-in-one machine only provides heat exchange quantity for the refrigerator 40, and the temperature of the freezing area 412 and the refrigerating area 411 can quickly reach the set temperature by the high-frequency running compressor 10, thereby meeting the refrigerating requirement of the refrigerator 40. When the freezing area 412 and the refrigerating area 411 reach the set temperature, the refrigerator 40 and the air conditioner can be fully opened by opening the first control valve 1, the second control valve 2, the third control valve 3 and the sixth control valve 6, and the flow rate of the refrigerant flowing through the air conditioner and the refrigerator 40 is controlled by controlling the opening degree of the fourth control valve, so that the refrigerating capacity of the refrigerator 40 and the air conditioner can be controlled as required. Therefore, the operation control method of the air conditioner and refrigerator 40 all-in-one machine can realize the complementation of the functions of the air conditioner and refrigerator 40 and improve the overall operation efficiency.
In the above embodiment, the value of a/b can be set according to actual needs. For example, when the freezing area 412 and the refrigerating area 411 of the refrigerator 40 reach the set temperatures, which indicates that the refrigerator 40 can meet the cooling demand at present, the first control valve 1, the second control valve 2, the third control valve 3 and the sixth control valve 6 are opened, and the fourth control valve 4 is controlled to be opened 1/4. At this time, the air conditioner and the refrigerator 40 are started, but the refrigerant flowing through the refrigerator 40 is less, so that the refrigerant mainly flows to the air conditioner, a large heat exchange amount can be provided for the air conditioner, and the refrigeration requirement of the air conditioner is fully met.
After the freezing area and the refrigerating area reach the set temperature, the operation control method further comprises the following steps: detecting the temperature deviation pn between the indoor environment temperature and the set temperature; when the temperature deviation pn is less than T1, the first control valve, the second control valve, the third control valve, the fourth control valve and the sixth control valve are controlled to be fully opened, and the low-frequency operation of the compressor is controlled. Wherein T1 may be 1 ℃, and the specific number does not limit the present invention, and those skilled in the art can set the value according to the actual requirement in the implementation project.
In this embodiment, when the freezing area 412 and the refrigerating area 411 reach the set temperature, it indicates that the cooling demand of the refrigerator 40 is low, and when the temperature deviation pn is less than T1, it indicates that the indoor environment temperature and the set temperature are relatively close to each other, and the cooling demand of the air conditioner is low, so that the first control valve 1, the second control valve 2, the third control valve 3, the fourth control valve 4, and the sixth control valve 6 are controlled to be fully opened, and the refrigerant can flow to the air conditioner and the refrigerator 40 relatively uniformly. Because the refrigeration requirements of the current refrigerator 40 and the air conditioner are lower, the refrigeration requirements of the current refrigerator 40 and the air conditioner can be met by controlling the compressor 10 to operate at low frequency, and the purpose of saving resources can be achieved.
When the freezing area 412 and the refrigerating area 411 do not reach the set temperature, the first control valve 1, the fourth control valve 4 and the sixth control valve 6 are controlled to be opened, the second control valve 2, the third control valve 3, the fifth control valve 5 and the seventh control valve 7 are controlled to be closed, the indoor heat exchanger 30 is controlled to be closed, the refrigerator 40 is controlled to be opened, and the high-frequency operation of the compressor is controlled.
In the above embodiment, when the air-conditioning and refrigerator 40 all-in-one machine is started, the first control valve 1, the fourth control valve 4 and the sixth control valve 6 are controlled to be opened, the second control valve 2, the third control valve 3, the fifth control valve 5 and the seventh control valve 7 are controlled to be closed, the indoor heat exchanger 30 is controlled to be closed, the indoor air conditioner can be closed, the refrigerator 40 is started, the refrigeration requirement of the refrigerator 40 is preferentially met, and the temperatures of the freezing area 412 and the refrigerating area 411 can quickly reach the set temperatures by controlling the high-frequency operation of the compressor 10, so that the refrigeration requirement of the refrigerator 40 is met.
It is to be understood that the present invention is not limited to the procedures and structures described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (9)
1. The operation control method of the air conditioner and refrigerator all-in-one machine is characterized in that the air conditioner and refrigerator all-in-one machine comprises a compressor, an outdoor heat exchanger, a four-way reversing valve, an indoor heat exchanger and a refrigerator, wherein the refrigerator comprises a refrigerating area and a unfreezing area, and the refrigerating area comprises a freezing area and a refrigerating area; a bypass pipeline is connected between the compressor and the thawing zone, an exhaust port of the compressor is connected to an inlet of the thawing zone through the bypass pipeline, and a gas return port of the compressor is connected to an outlet of the thawing zone through the bypass pipeline; the four-way reversing valve is connected between the compressor and the indoor heat exchanger as well as between the compressor and the outdoor heat exchanger, the refrigeration area is connected to a first interface of the four-way reversing valve through a first pipeline, a first end of the indoor heat exchanger is connected to the first interface of the four-way reversing valve through a second pipeline, a sixth pipeline is connected between the outdoor heat exchanger and the indoor heat exchanger, a first end of the sixth pipeline is connected to the outdoor heat exchanger, a second end of the sixth pipeline is connected to a second end of the indoor heat exchanger through a third pipeline, a second end of the sixth pipeline is connected to the refrigeration area through a fourth pipeline, a first end of the indoor heat exchanger is connected to a second interface of the four-way reversing valve through a fifth pipeline, a first control valve is arranged on the first pipeline, a second control valve is arranged on the second pipeline, and a third control valve is arranged on the third pipeline, a fourth control valve is arranged on the fourth pipeline, a fifth control valve is arranged on the fifth pipeline, and a sixth control valve and a throttling device are arranged on the sixth pipeline; the second end of the indoor heat exchanger is also connected with a seventh pipeline, the other end of the seventh pipeline is connected with a sixth pipeline between a sixth control valve and the throttling device, and the seventh pipeline is provided with a seventh control valve; a first bypass valve is arranged on a bypass pipeline at an air outlet of the compressor, and the opening degree of the first bypass valve is adjustable; a bypass pipeline at an air return port of the compressor is provided with a second bypass valve, and the opening degree of the second bypass valve is adjustable;
the operation control method comprises the following steps:
controlling the heating operation of the air conditioner and refrigerator integrated machine;
the first control valve, the fourth control valve, the fifth control valve, the sixth control valve and the seventh control valve are controlled to be opened, the second control valve and the third control valve are closed, the outdoor heat exchanger, the indoor heat exchanger and the refrigerator are controlled to be opened, and the compressor is controlled to run at a high frequency;
controlling the first bypass valve and the second bypass valve to close;
judging whether the freezing area and the refrigerating area of the refrigerator reach the refrigeration set temperature of the refrigerator, and/or
Acquiring temperature deviation pn between the indoor environment temperature and the indoor environment set temperature;
and controlling the running state of the air conditioner and refrigerator all-in-one machine according to the detection result.
2. The operation control method according to claim 1, wherein the step of controlling the operation state of the air conditioner and refrigerator all-in-one machine according to the detection result comprises:
when the freezing area and the refrigerating area of the refrigerator reach the set refrigerating temperature or the temperature deviation pn < T2 of the refrigerator, the first control valve, the fourth control valve, the fifth control valve, the sixth control valve and the seventh control valve are controlled to be opened, the second control valve and the third control valve are controlled to be closed, the refrigerator and the indoor heat exchanger are controlled to be opened, and the compressor is controlled to operate at the intermediate frequency.
3. The operation control method according to claim 2, wherein the step of controlling the operation state of the air conditioner and refrigerator integrated machine according to the detection result further comprises:
when the freezing area and the refrigerating area of the refrigerator reach the set refrigerating temperature of the refrigerator and the temperature deviation pn is less than T2, the first control valve, the fourth control valve, the fifth control valve, the sixth control valve and the seventh control valve are controlled to be opened, the second control valve and the third control valve are controlled to be closed, the refrigerator and the indoor heat exchanger are controlled to be opened, and the compressor is controlled to run at a low frequency.
4. The operation control method according to claim 1, characterized by further comprising:
controlling the air conditioner and refrigerator integrated machine to perform refrigeration operation;
detecting whether the freezing area and the refrigerating area reach the refrigerating set temperature of the refrigerator or not;
when the freezing area and the refrigerating area do not reach the set refrigeration temperature of the refrigerator, controlling the first control valve, the fourth control valve and the sixth control valve to be opened, controlling the second control valve, the third control valve, the fifth control valve and the seventh control valve to be closed, controlling the indoor heat exchanger to be closed, closing the first bypass valve and the second bypass valve, starting the refrigerator and controlling the compressor to run at high frequency;
when the freezing area and the refrigerating area reach the set refrigerating temperature of the refrigerator, controlling the first control valve, the second control valve, the third control valve and the sixth control valve to be fully opened, and opening a/b by the fourth control valve to simultaneously open the indoor heat exchanger and the refrigerator;
wherein a/b < 1.
5. The operation control method according to claim 4, wherein after the freezing zone and the refrigerating zone reach the refrigerating set temperature of the refrigerator, the operation control method further comprises:
detecting the temperature deviation pn between the indoor environment temperature and the indoor environment set temperature;
when the temperature deviation pn < T1, the first control valve, the second control valve, the third control valve, the fourth control valve, and the sixth control valve are controlled to be fully opened, and the low-frequency operation of the compressor is controlled.
6. The operation control method according to claim 4, wherein when the freezing area and the refrigerating area do not reach the refrigeration set temperature of the refrigerator, the first control valve, the fourth control valve and the sixth control valve are controlled to be opened, the second control valve, the third control valve, the fifth control valve and the seventh control valve are controlled to be closed, the indoor heat exchanger is controlled to be closed, the refrigerator is controlled to be opened, and the compressor is controlled to be operated at a high frequency.
7. The operation control method according to claim 4, wherein a/b is 1/4.
8. The operation control method according to claim 5, wherein T1 is 1 ℃.
9. The operation control method according to claim 2, wherein T2 is 2 ℃.
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| CN201710214074.9A CN107023916B (en) | 2017-04-01 | 2017-04-01 | Operation control method of air conditioner and refrigerator integrated machine |
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| CN201710214074.9A CN107023916B (en) | 2017-04-01 | 2017-04-01 | Operation control method of air conditioner and refrigerator integrated machine |
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| CN107023916A CN107023916A (en) | 2017-08-08 |
| CN107023916B true CN107023916B (en) | 2019-12-31 |
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| KR20030086691A (en) * | 2002-05-06 | 2003-11-12 | 엘지전자 주식회사 | Intergrated Home Freezing System |
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| CN107023916A (en) | 2017-08-08 |
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