CN112066585B - Temperature control device, dual-temperature refrigeration method, electronic device and computer readable medium - Google Patents
Temperature control device, dual-temperature refrigeration method, electronic device and computer readable medium Download PDFInfo
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- CN112066585B CN112066585B CN202010976681.0A CN202010976681A CN112066585B CN 112066585 B CN112066585 B CN 112066585B CN 202010976681 A CN202010976681 A CN 202010976681A CN 112066585 B CN112066585 B CN 112066585B
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 90
- 238000000034 method Methods 0.000 title claims abstract description 33
- 239000002826 coolant Substances 0.000 claims abstract description 87
- 238000001704 evaporation Methods 0.000 claims description 51
- 230000008020 evaporation Effects 0.000 claims description 46
- 238000010257 thawing Methods 0.000 claims description 25
- 238000010438 heat treatment Methods 0.000 claims description 23
- 238000004891 communication Methods 0.000 claims description 18
- 238000010521 absorption reaction Methods 0.000 claims description 17
- 238000001816 cooling Methods 0.000 claims description 14
- 238000004590 computer program Methods 0.000 claims description 10
- 230000009977 dual effect Effects 0.000 claims description 6
- 230000001276 controlling effect Effects 0.000 description 48
- 239000003507 refrigerant Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 230000005494 condensation Effects 0.000 description 5
- 238000009833 condensation Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000802 evaporation-induced self-assembly Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B31/00—Compressor arrangements
-
- 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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
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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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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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
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The application provides temperature control equipment, a double-temperature refrigeration method, electronic equipment and a computer readable medium, and belongs to the technical field of air conditioners. The method comprises the following steps: controlling the cooling medium in the first compressor and the second compressor to enter the second heat exchanger to perform exothermic operation in the second heat exchanger; controlling a part of the cooling medium in the second heat exchanger to enter a third sub heat exchanger of the first heat exchanger so as to perform first temperature refrigeration in the third sub heat exchanger, and controlling another part of the cooling medium in the second heat exchanger to enter a fourth sub heat exchanger of the first heat exchanger so as to perform second temperature refrigeration in the fourth sub heat exchanger, wherein the first temperature is higher than the second temperature. The application avoids overlarge heat exchange quantity and overlarge indoor temperature, and improves the experience of users.
Description
Technical Field
The present application relates to the field of air conditioning technologies, and in particular, to a temperature control device, a dual-temperature refrigeration method, an electronic device, and a computer readable medium.
Background
In the cooling operation, the air conditioner needs to process sensible heat and latent heat of the cooling medium at the same time, which may cause an excessive temperature drop range and an excessively low indoor temperature of the user. At present, in order to properly raise the indoor temperature, a heater is required to be arranged at an air outlet of an evaporator of an air conditioner, and is used for heating air supply of the air conditioner to raise the indoor temperature. The air outlet mode of firstly cooling and then heating wastes energy.
Disclosure of Invention
An object of an embodiment of the present application is to provide a temperature control apparatus and a dual-temperature cooling method, an electronic apparatus, and a computer readable medium, to solve the problem of defrosting to reduce indoor temperature. The specific technical scheme is as follows:
In a first aspect, the present application provides a temperature control apparatus, the apparatus comprising: a compressor, a multi-way valve, a first heat exchanger and a second heat exchanger, wherein,
The compressor is respectively connected with the multi-way valve, the first heat exchanger and the second heat exchanger and used for completing temperature control;
the multi-way valve is respectively connected with the first heat exchanger and the second heat exchanger and is used for controlling the first heat exchanger and the second heat exchanger to perform heat absorption or heat release operation;
The first heat exchanger is connected with the second heat exchanger and is used for carrying out exothermic operation in a heating cycle and carrying out endothermic operation in a cooling cycle;
The second heat exchanger is used for carrying out heat release and heat absorption operation in a defrosting cycle and carrying out heat release operation in the refrigerating cycle.
Optionally, the multi-way valve is a four-way valve, the four-way valve comprises a top connecting pipe and a bottom connecting device, and the bottom connecting device comprises a first connecting pipe, a second connecting pipe and an intermediate connecting pipe positioned between the first connecting pipe and the second connecting pipe;
The top connecting pipe and the middle connecting pipe are respectively connected with the compressor, the first connecting pipe is connected with the second heat exchanger, and the second connecting pipe is connected with the first heat exchanger.
Optionally, in the heating cycle and the defrosting cycle, the second heat exchanger includes a first sub heat exchanger and a second sub heat exchanger;
one end of the compressor is connected with one end of the second sub-heat exchanger through the four-way valve and the first heat exchanger, and the other end of the compressor is connected with the other end of the second sub-heat exchanger through the four-way valve so as to complete a heating cycle;
one end of the compressor is also connected with one end of the second sub heat exchanger through the first sub heat exchanger, and the other end of the compressor is connected with the other end of the second sub heat exchanger through the four-way valve, so that defrosting circulation is completed.
Optionally, in the refrigeration cycle, the first heat exchanger includes a third sub heat exchanger and a fourth sub heat exchanger, and the compressor includes a first compressor and a second compressor;
One end of the first compressor is connected with one end of the third sub heat exchanger and one end of the fourth sub heat exchanger respectively through the four-way valve, the other end of the third sub heat exchanger is connected with the other end of the first compressor through the four-way valve to complete a first temperature refrigeration cycle, and the other end of the fourth sub heat exchanger is connected with the other end of the second compressor to complete a second temperature refrigeration cycle, wherein the temperature value of the second temperature is lower than that of the first temperature.
Optionally, in the refrigeration cycle,
One end of the first compressor and one end of the second compressor are connected with a top connecting pipe of the four-way valve, a first connecting pipe of the four-way valve is connected with one end of the second heat exchanger so as to control an evaporation medium to perform heat release operation in the second heat exchanger through the first connecting pipe, and the other end of the second heat exchanger is respectively connected with one ends of a third sub heat exchanger and a fourth sub heat exchanger;
The other end of the third sub heat exchanger is connected with a second connecting pipe of the four-way valve, and the middle connecting pipe is connected with the other end of the first compressor so as to complete a second temperature refrigeration cycle;
the other end of the fourth sub heat exchanger is connected with the other end of the second compressor to complete a first temperature refrigeration cycle, wherein the first temperature is higher than the second temperature.
Optionally, the second heat exchanger is connected with the fourth sub heat exchanger through a first expansion valve, wherein the first expansion valve is used for throttling and depressurizing the evaporation medium after heat release operation in the second heat exchanger, so that the evaporation medium after throttling and depressurizing enters the fourth sub heat exchanger.
Optionally, the second heat exchanger is connected with the third sub heat exchanger through a third expansion valve, wherein the third expansion valve is used for throttling and depressurizing the evaporation medium after heat release operation in the second heat exchanger, so that the evaporation medium after throttling and depressurizing enters the third sub heat exchanger.
In a second aspect, the present application provides a dual temperature refrigeration method comprising:
controlling the cooling medium in the first compressor and the second compressor to enter the second heat exchanger to perform exothermic operation in the second heat exchanger;
Controlling a part of the cooling medium in the second heat exchanger to enter a third sub heat exchanger of the first heat exchanger so as to perform first temperature refrigeration in the third sub heat exchanger, and controlling another part of the cooling medium in the second heat exchanger to enter a fourth sub heat exchanger of the first heat exchanger so as to perform second temperature refrigeration in the fourth sub heat exchanger, wherein the first temperature is higher than the second temperature.
Optionally, controlling a portion of the cooling medium in the second heat exchanger to enter the third sub-heat exchanger of the first heat exchanger includes: controlling a part of cooling medium in the second heat exchanger to enter a third sub heat exchanger of the first heat exchanger to perform first temperature refrigeration, and controlling the cooling medium subjected to the first temperature refrigeration to return to the first compressor through a four-way valve;
Controlling the further portion of the cooling medium in the second heat exchanger to enter the fourth sub-heat exchanger of the first heat exchanger comprises: and controlling the other part of cooling medium in the second heat exchanger to enter a fourth sub heat exchanger of the first heat exchanger to perform second temperature refrigeration, and controlling the cooling medium subjected to the second temperature refrigeration to return to the second compressor, wherein the frequency of the first compressor is higher than that of the second compressor.
Optionally, the controlling a portion of the cooling medium in the second heat exchanger to enter the third sub-heat exchanger of the first heat exchanger includes: and controlling a part of cooling medium in the second heat exchanger to enter a third sub-heat exchanger of the first heat exchanger through a third expansion valve, wherein the third expansion valve is used for throttling and depressurizing the evaporation medium subjected to heat release operation in the second heat exchanger so as to enable the evaporation medium subjected to throttling and depressurizing to enter the third sub-heat exchanger.
Optionally, the controlling the other part of the cooling medium in the second heat exchanger to enter the fourth sub heat exchanger of the first heat exchanger includes: and controlling the other part of cooling medium in the second heat exchanger to enter a fourth sub-heat exchanger of the first heat exchanger through a first expansion valve, wherein the first expansion valve is used for throttling and reducing the pressure of the evaporation medium subjected to heat release operation in the second heat exchanger so as to enable the evaporation medium subjected to throttling and reducing to enter the fourth sub-heat exchanger.
Optionally, controlling the cooling medium in the first compressor and the second compressor to enter the second heat exchanger includes: the cooling medium in the first compressor and the second compressor is controlled to enter the second heat exchanger through a multi-way valve, wherein the multi-way valve is used for controlling the first heat exchanger to perform exothermic operation.
Optionally, the multi-way valve is a four-way valve, and controlling the cooling medium in the first compressor and the second compressor to enter the second heat exchanger through the multi-way valve includes:
controlling cooling media in the first compressor and the second compressor to enter a top connecting pipe of the four-way valve;
controlling the cooling medium to enter the second heat exchanger from a first connecting pipe of the four-way valve.
In a third aspect, the present application provides an electronic device, including a processor, a communication interface, a memory, and a communication bus, where the processor, the communication interface, and the memory complete communication with each other through the communication bus;
A memory for storing a computer program;
And a processor for implementing any of the method steps when executing the program stored on the memory.
In a fourth aspect, the present application provides a computer readable storage medium, wherein a computer program is stored in the computer readable storage medium, the computer program implementing any of the method steps when executed by a processor.
The embodiment of the application has the beneficial effects that:
The embodiment of the application provides a double-temperature refrigeration method, wherein a controller controls a refrigeration medium to refrigerate at a first temperature in a third sub heat exchanger, controls a cooling medium to refrigerate at a second temperature in a fourth sub heat exchanger, the first temperature is higher than the second temperature, the refrigeration is evaporation heat absorption, and the heat exchange amount achieved by adopting the first temperature for refrigeration is higher than the heat exchange amount achieved by adopting the second temperature for refrigeration, so that the excessive heat exchange amount can be avoided, the indoor temperature is too low, and the user experience is improved.
Of course, not all of the above advantages need be achieved simultaneously in the practice of any one product or method of the present application.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.
FIG. 1 is a system diagram of a temperature control device;
FIG. 2 is a flow chart of a refrigerant medium in a normal heating mode;
FIG. 3 is a flow chart of a cooling medium in an uninterrupted defrosting mode;
FIG. 4 is a flow chart of a cooling medium in a dual temperature cooling mode;
FIG. 5 is a flow chart of a dual temperature refrigeration method according to an embodiment of the present application;
Fig. 6 is a schematic structural diagram of a dual-temperature refrigeration device according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment of the application provides temperature control equipment which is used for controlling an air conditioner to heat or refrigerate.
A temperature control apparatus, comprising: the system comprises a compressor, a multi-way valve, a first heat exchanger and a second heat exchanger, wherein the compressor is respectively connected with the multi-way valve, the first heat exchanger and the second heat exchanger and used for completing temperature control; the multi-way valve is connected with the first heat exchanger and the second heat exchanger respectively and is used for controlling the first heat exchanger and the second heat exchanger to perform heat absorption or heat release operation; a first heat exchanger connected to the second heat exchanger for performing an exothermic operation in the heating cycle and an endothermic operation in the cooling cycle; and a second heat exchanger for performing exothermic and endothermic operations in the defrosting cycle and exothermic operations in the refrigerating cycle.
In an embodiment of the application, the multiway valve comprises a plurality of connecting pipes, and each connecting pipe is respectively connected with a different module. Illustratively, the multi-way valve is a four-way valve, which is a control valve having four ports. The four-way valve comprises a top connecting pipe and a bottom connecting device, wherein the bottom connecting device comprises a first connecting pipe, a second connecting pipe and an intermediate connecting pipe positioned between the first connecting pipe and the second connecting pipe. The top connecting pipe and the middle connecting pipe are respectively connected with the compressor, the first connecting pipe is connected with the second heat exchanger, and the second connecting pipe is connected with the first heat exchanger.
The four-way valve can control the first heat exchanger and the second heat exchanger to absorb heat or release heat, and the working principle is that when the solenoid valve coil is in a power-off state, the pilot slide valve is driven by the right side compression spring to move left, the high-pressure refrigerant enters the capillary tube and then enters the right end piston cavity, on the other hand, the refrigerating medium in the left end piston cavity is discharged, and the exhaust pipe is communicated with the outdoor unit connecting pipe due to the fact that the pressure difference exists at the two ends of the piston, and the piston and the main slide valve move left, and the other two connecting pipes are communicated to form a refrigerating cycle.
When the solenoid valve coil is in an electrified state, the pilot slide valve moves rightwards under the action of magnetic force generated by the solenoid valve coil to overcome the tension of the compression spring, high-pressure refrigerant enters the capillary tube and then enters the left-end piston cavity, on the other hand, the refrigerating medium in the right-end piston cavity is discharged, and the piston and the main slide valve move rightwards due to the pressure difference at the two ends of the piston, so that the exhaust pipe is communicated with the connecting pipe of the indoor unit, and the other two connecting pipes are communicated to form a heating cycle.
The temperature control device may include two control modes, one of which is an uninterrupted defrosting mode, i.e., a heating cycle and a defrosting cycle are performed simultaneously, and the other of which is a dual temperature cooling mode, the two control modes being described below, respectively.
An uninterrupted defrosting mode.
The uninterrupted defrosting mode comprises a heating cycle and a defrosting cycle, the second heat exchanger comprises two identical sub-exchangers, namely a first sub-heat exchanger and a second sub-heat exchanger, one end of the compressor is connected with one end of the second sub-heat exchanger through a four-way valve and the first heat exchanger, and the other end of the compressor is connected with the other end of the second sub-heat exchanger through the four-way valve so as to complete the heating cycle; one end of the compressor is also connected with one end of the second sub heat exchanger through the first sub heat exchanger, and the other end of the compressor is connected with the other end of the second sub heat exchanger through the four-way valve, so that defrosting circulation is completed. The first compressor has a high condensing pressure for completing the heating cycle, and the second compressor has a low condensing pressure for completing the defrosting cycle.
Because heating and defrosting are needed, which means that the ambient temperature is relatively low, the first heat exchanger needed for heating is in an indoor environment, the second heat exchanger needed for defrosting is in an outdoor environment, and the target temperature of the environment where the first heat exchanger is located is higher than the ambient temperature of the environment where the second heat exchanger is located.
As an alternative embodiment, the compressor includes a first compressor and a second compressor, one end of the first compressor is connected with one end of the second sub heat exchanger through the four-way valve and the first heat exchanger, and the other end of the first compressor is connected with the other end of the second sub heat exchanger through the four-way valve to complete the heating cycle; one end of the second compressor is connected with one end of the second sub heat exchanger through the first sub heat exchanger, and the other end of the second compressor is connected with the other end of the second sub heat exchanger through the four-way valve so as to complete defrosting circulation.
As an alternative implementation mode, the solenoid valve coil is in an electrified state, one end of the first compressor is connected with the top connecting pipe of the four-way valve, and the second connecting pipe of the four-way valve is connected with one end of the first heat exchanger, so that a refrigerating medium is subjected to condensation heat release in the first heat exchanger, the temperature of the first heat exchanger in an indoor environment is increased, and the indoor environment temperature is further increased.
In addition, the other end of the first heat exchanger is connected with the second sub heat exchanger through the first expansion valve. After the medium temperature and high pressure refrigerating medium is condensed and released in the first heat exchanger, the medium temperature and high pressure liquid refrigerating medium is throttled into low temperature and low pressure wet steam by the first expansion valve through the first expansion valve, the low temperature and low pressure refrigerating medium is evaporated and absorbed in the second sub heat exchanger, the temperature of the second heat exchanger in the outdoor environment is reduced, the second heat exchanger is excessively different from the outdoor environment, and the water steam is easy to condense into frost on the second heat exchanger. The second sub heat exchanger is connected with a first connecting pipe of the four-way valve, and the middle connecting pipe is connected with the other end of the first compressor, namely, the refrigerating medium in the second sub heat exchanger returns to the first compressor through the four-way valve, so that one heating cycle is completed.
The first expansion valve allows the refrigerant medium to circulate by shifting the refrigerant medium from a medium temperature high pressure to a low temperature low pressure. The first expansion valve can also automatically adjust the flow entering the heat exchanger, and keep the temperature of the heat exchanger stable.
The expansion valve is generally arranged between the liquid storage cylinder and the evaporator, the expansion valve throttles a medium-temperature high-pressure liquid refrigeration medium into low-temperature low-pressure wet steam through the expansion valve, then the refrigeration medium absorbs heat in the evaporator to achieve a refrigeration effect, and the expansion valve controls valve flow through superheat change at the tail end of the evaporator to prevent the phenomenon of underutilization of the area of the evaporator and knocking of the cylinder.
As an alternative implementation mode, one end of the second compressor is connected with one end of the first sub heat exchanger, the controller controls the second compressor to conduct heat release operation in the first sub heat exchanger, the temperature of the second heat exchanger is increased, the other end of the first sub heat exchanger is connected with one end of the second sub heat exchanger through the second expansion valve, the second expansion valve throttles and reduces pressure of a refrigeration medium subjected to heat release operation in the first sub heat exchanger to become low-temperature low-pressure wet steam, the throttled and reduced-pressure refrigeration medium enters the second sub heat exchanger and then undergoes evaporation and heat absorption in the second sub heat exchanger, and then the refrigeration medium returns to the first compressor through the first connecting pipe and the middle connecting pipe of the four-way valve to complete one round of defrosting cycle.
According to the application, the second heat exchanger in the outdoor environment continuously absorbs and releases heat, so that the temperature of the second heat exchanger is not too high compared with the temperature of the outdoor environment, condensed frost generated by too low temperature of the second heat exchanger is avoided, heat exchange is prevented, and the heat exchange efficiency of the second heat exchanger is ensured. The application can also improve the temperature of the second heat exchanger without absorbing heat from the room, thereby ensuring the comfort of the body temperature of the user.
And two, a double-temperature refrigeration mode.
As an alternative embodiment, in the refrigeration cycle, a first compressor and a second compressor are included, wherein the power of the first compressor is greater than the power of the second compressor. The first compressor is used for dehumidifying and cooling, and the second compressor is used for controlling the air supply temperature.
One end of the first compressor is connected with a top connecting pipe of the four-way valve, and a first connecting pipe of the four-way valve is connected with one end of the second heat exchanger so as to control the evaporation medium to perform heat release operation in the second heat exchanger through the first connecting pipe.
The second heat exchanger comprises a first sub heat exchanger and a second sub heat exchanger, the other end of the second sub heat exchanger is connected with one end of a fourth sub heat exchanger through a first expansion valve, the evaporation medium is controlled to absorb heat at the second temperature in the fourth sub heat exchanger, and the other end of the fourth sub heat exchanger is connected with a second compressor to complete the refrigeration cycle at the second temperature.
The first expansion valve throttles and depressurizes the evaporation medium after the heat release operation in the second heat exchanger so that the throttled and depressurized evaporation medium enters the fourth sub heat exchanger.
The other end of the second sub heat exchanger is connected with one end of the third sub heat exchanger through a third expansion valve, the evaporation medium is controlled to absorb heat at the first temperature in the third sub heat exchanger, the other end of the third sub heat exchanger is connected with a second connecting pipe of the four-way valve, and an intermediate piece connecting pipe of the four-way valve is connected with the other end of the first compressor to complete the refrigeration cycle at the first temperature.
The third expansion valve is used for throttling and depressurizing the evaporation medium after the heat release operation in the second heat exchanger so that the evaporation medium after the throttling and depressurizing enters the third sub heat exchanger.
The embodiment of the application provides a double-temperature refrigeration method, wherein a controller controls a refrigeration medium to refrigerate at a first temperature in a third sub heat exchanger, controls a cooling medium to refrigerate at a second temperature in a fourth sub heat exchanger, the first temperature is higher than the second temperature, the refrigeration is evaporation heat absorption, and the heat exchange amount achieved by adopting the first temperature for refrigeration is higher than the heat exchange amount achieved by adopting the second temperature for refrigeration, so that the excessive heat exchange amount can be avoided, the indoor temperature is too low, and the user experience is improved.
As shown in fig. 1, fig. 1 is a system diagram of a temperature control apparatus. One end of the first compressor 1 is connected with one end of the second compressor 2 through an electromagnetic valve 15, is also connected with the first heat exchanger 4 through a top connecting pipe and a second connecting pipe of the four-way valve 3, and the other end of the first compressor is connected with the second heat exchanger 5 through an intermediate connecting pipe and a first connecting pipe of the four-way valve and is also connected with the other end of the second compressor through an electromagnetic valve 16.
One end of the second compressor 2 is connected to one end of the second heat exchanger 5 through the solenoid valve 17 and the solenoid valve 13, and the other end of the second compressor 2 is connected to one end of the first heat exchanger 4 through the solenoid valve 14.
One end of the third sub heat exchanger is connected with one end of the fourth sub heat exchanger through an electromagnetic valve 9, and the other end of the third sub heat exchanger is connected with the other end of the fourth sub heat exchanger through an electromagnetic valve 10.
One end of the first sub heat exchanger is connected with one end of the second sub heat exchanger through an electromagnetic valve 12, and the other end of the first sub heat exchanger is connected with the other end of the second fourth sub heat exchanger through an electromagnetic valve 11 and a second expansion valve 8 respectively. The other end of the second sub heat exchanger is connected with the other end of the third sub heat exchanger through a third expansion valve 6 and is also connected with the other end of the fourth sub heat exchanger through a first expansion valve 77.
Fig. 2 is a flow chart of a cooling medium in a normal heating mode. The electromagnetic valve 13, the electromagnetic valve 14 and the electromagnetic valve 7 are closed, and the third electronic expansion valve 6 and the second electronic expansion valve 8 are regulated to 0 steps.
The flow direction steps are as follows: the refrigeration media in the first compressor 1 and the second compressor 2 flow into the third sub heat exchanger and the fourth sub heat exchanger through the top connecting pipe and the second connecting pipe of the four-way valve, condensation and heat release are carried out in the third sub heat exchanger and the fourth sub heat exchanger, then the refrigeration media enter the first sub heat exchanger and the second sub heat exchanger through the throttling and depressurization of the first expansion valve 7, evaporation and heat absorption are carried out in the first sub heat exchanger and the second sub heat exchanger, and finally the refrigeration media return to the other ends of the first compressor 1 and the second compressor 2 through the first connecting pipe and the middle connecting pipe of the four-way valve, so that the heating cycle is completed.
Fig. 3 is a flow chart of a cooling medium in an uninterrupted defrosting mode. In the uninterrupted defrosting mode, the solenoid valve 11, the solenoid valve 12, the solenoid valve 14 and the solenoid valve 15 are closed, the third expansion valve 6 is adjusted to be 0 steps, the other solenoid valves are opened, and the steps of the other solenoid valves are not 0.
The flow direction steps are as follows: the refrigerating medium in the first compressor 1 flows into the third sub heat exchanger and the fourth sub heat exchanger through the top connecting pipe and the second connecting pipe of the four-way valve, performs condensation heat release in the third sub heat exchanger and the fourth sub heat exchanger, then enters the second sub heat exchanger through throttling and depressurization of the first expansion valve 7, performs evaporation heat absorption in the second sub heat exchanger, and finally returns to the other end of the first compressor 1 through the first connecting pipe and the middle connecting pipe of the four-way valve, thus completing a round of heating cycle.
The refrigerating medium in the second compressor 2 enters the first sub heat exchanger through the electromagnetic valve 17 and the electromagnetic valve 13, and performs condensation heat release in the first sub heat exchanger, then enters the second sub heat exchanger through throttling and depressurization of the second expansion valve 8, performs evaporation heat absorption in the second sub heat exchanger, and finally returns to the other end of the second compressor 2 through the first connecting pipe and the middle connecting pipe of the four-way valve, thus completing one round of defrosting cycle.
Fig. 4 is a flow chart of a cooling medium in a dual temperature cooling mode. In the uninterrupted defrosting mode, solenoid valve 9, solenoid valve 10, solenoid valve 13, solenoid valve 16, solenoid valve 17 are closed. The second electronic expansion valve 8 is adjusted to 0 steps, other electromagnetic valves are opened, and the steps of the other electromagnetic valves are not 0.
The refrigeration medium in the second compressor 2 is mixed with the refrigeration medium in the first compressor 1 through the electromagnetic valve 15, then the refrigeration medium enters the first sub heat exchanger and the second sub heat exchanger through the top connecting pipe and the first connecting pipe of the four-way valve, and is subjected to condensation heat release in the first sub heat exchanger and the second sub heat exchanger, and then the refrigeration medium is divided into two parts, wherein one part enters the third sub heat exchanger through the third expansion valve 6, is subjected to first temperature refrigeration in the third sub heat exchanger, and is returned to the other end of the first compressor 1 through the second connecting pipe and the middle connecting pipe of the four-way valve, the first temperature refrigeration cycle is completed, the other part enters the fourth sub heat exchanger through the first expansion valve 7, is subjected to second temperature refrigeration in the fourth sub heat exchanger, and then is returned to the other end of the second compressor 2 through the electromagnetic valve 14, and the second temperature refrigeration is completed. Wherein the temperature value of the first temperature is higher than the temperature value of the second temperature.
The application adopts a double-compressor double-suction double-exhaust mode, and the two compressors have two condensing pressures and two evaporating pressures, so that an uninterrupted defrosting mode and a double-temperature refrigerating mode can be realized in one set of device.
The embodiment of the application also provides a double-temperature refrigeration method which can be applied to the controller and used for controlling the temperature of the air conditioner and avoiding the excessively low indoor temperature. As shown in fig. 5, the specific steps are as follows.
Step 501: the cooling medium in the first compressor and the second compressor is controlled to enter the second heat exchanger to perform a heat releasing operation in the second heat exchanger.
In the refrigeration process of the compressor, the indoor unit needs to be controlled to absorb heat, the outdoor unit is controlled to release heat so as to reduce the indoor temperature, and the controller controls cooling media in the first compressor and the second compressor to enter the second heat exchanger so as to perform heat release operation in the second heat exchanger, wherein the second heat exchanger is the outdoor unit.
As an alternative embodiment, controlling the cooling medium in the first compressor and the second compressor to enter the second heat exchanger comprises: the cooling medium in the first compressor and the second compressor is controlled to enter the second heat exchanger through a multi-way valve, wherein the multi-way valve is used for controlling the first heat exchanger to perform heat release operation.
In an embodiment of the application, the controller controls the cooling medium in the first compressor and the second compressor to enter the multi-way valve, so that the multi-way valve controls the cooling medium to perform exothermic operation in the second heat exchanger.
Specifically, the multi-way valve is a four-way valve, a first connecting pipe of the four-way valve is communicated with an outdoor unit connecting pipe, and the other two connecting pipes are communicated to form refrigeration circulation. Therefore, the controller controls the cooling medium in the first compressor and the second compressor to enter the top connecting pipe of the four-way valve, then controls the cooling medium to come out of the first connecting pipe of the four-way valve and enter the second heat exchanger, and releases heat in the second heat exchanger.
Step 502: and controlling a part of the cooling medium in the second heat exchanger to enter the third sub heat exchanger of the first heat exchanger to perform first temperature refrigeration in the third sub heat exchanger, and controlling the other part of the cooling medium in the second heat exchanger to enter the fourth sub heat exchanger of the first heat exchanger to perform second temperature refrigeration in the fourth sub heat exchanger.
Wherein the first temperature is higher than the second temperature.
In the embodiment of the application, the first heat exchanger comprises two layers, in the use process, one layer far away from the supporting surface is a third sub heat exchanger, one layer close to the supporting surface is a fourth sub heat exchanger, and compared with the fourth sub heat exchanger, the third sub heat exchanger has the advantages of high evaporation pressure, high evaporation temperature, large heat exchange capacity and good refrigeration effect.
The controller controls a part of the cooling medium in the second heat exchanger to enter the third sub heat exchanger of the first heat exchanger, the first temperature refrigeration is carried out in the third sub heat exchanger, the other part of the cooling medium in the second heat exchanger to enter the fourth sub heat exchanger of the first heat exchanger, the second temperature refrigeration is carried out in the fourth sub heat exchanger, the first temperature evaporation heat absorption capacity is larger than the second temperature evaporation heat absorption capacity due to the fact that the first temperature is higher than the second temperature, the evaporation heat absorption capacity carried out by the third sub heat exchanger is larger, the third sub heat exchanger can be used for providing all latent heat load and part of sensible heat load, the evaporation heat absorption capacity carried out by the fourth sub heat exchanger is smaller, and the fourth sub heat exchanger can be used for providing the rest of sensible heat load.
The application adopts two different evaporation temperatures, the first evaporation temperature is used for providing larger heat exchange quantity, providing all latent heat and partial sensible heat, the second evaporation temperature is used for providing smaller heat exchange quantity, and providing the rest sensible heat, so that the adoption of overlarge temperature reduction amplitude can be avoided, a heating device is not needed, the energy is saved, and the electricity cost is reduced.
As an alternative embodiment, controlling a portion of the cooling medium in the second heat exchanger to enter the third sub-heat exchanger of the first heat exchanger comprises: controlling a part of cooling medium in the second heat exchanger to enter a third sub heat exchanger of the first heat exchanger to perform first temperature refrigeration, and controlling the cooling medium subjected to the first temperature refrigeration to return to the first compressor through the four-way valve;
Controlling another portion of the cooling medium in the second heat exchanger to enter the fourth sub-heat exchanger of the first heat exchanger includes: and controlling the other part of cooling medium in the second heat exchanger to enter a fourth sub heat exchanger of the first heat exchanger to perform second temperature refrigeration, and controlling the cooling medium subjected to the second temperature refrigeration to return to the second compressor, wherein the frequency of the first compressor is higher than that of the second compressor.
In the embodiment of the application, the controller controls a part of cooling medium in the second heat exchanger to enter the third sub heat exchanger of the first heat exchanger to perform first temperature refrigeration, and then controls the cooling medium subjected to the first temperature refrigeration to return to the first compressor through the four-way valve, so that a first temperature refrigeration cycle is completed. The controller controls the other part of the cooling medium in the second heat exchanger to enter the fourth sub heat exchanger of the first heat exchanger to perform second temperature refrigeration, and then controls the cooling medium subjected to the second temperature refrigeration to return to the second compressor, so that a second temperature refrigeration cycle is completed.
Since the load of the third sub heat exchanger is greater than the load of the fourth sub heat exchanger, and the third sub heat exchanger is connected to the first compressor and the fourth sub heat exchanger is connected to the second compressor, the operating frequency of the first compressor is higher than that of the second compressor.
As an alternative embodiment, controlling a portion of the cooling medium in the second heat exchanger to enter the third sub-heat exchanger of the first heat exchanger comprises: and controlling a part of cooling medium in the second heat exchanger to enter the third sub-heat exchanger of the first heat exchanger through a third expansion valve, wherein the third expansion valve is used for throttling and reducing the pressure of the evaporating medium after the heat release operation in the second heat exchanger so as to enable the throttled and reduced evaporating medium to enter the third sub-heat exchanger.
The controller controls a part of cooling medium in the second heat exchanger to enter the third sub-heat exchanger of the first heat exchanger through the third expansion valve, the third expansion valve throttles the medium-temperature high-pressure liquid cooling medium into low-temperature low-pressure wet steam through the third expansion valve, and the low-temperature low-pressure cooling medium evaporates and absorbs heat in the third sub-heat exchanger to reduce the indoor temperature.
As an alternative embodiment, controlling the further portion of the cooling medium in the second heat exchanger to enter the fourth sub-heat exchanger of the first heat exchanger comprises: and controlling the other part of cooling medium in the second heat exchanger to enter the fourth sub-heat exchanger of the first heat exchanger through the first expansion valve, wherein the first expansion valve is used for throttling and reducing the pressure of the evaporating medium after the heat release operation in the second heat exchanger so as to enable the throttled and reduced evaporating medium to enter the fourth sub-heat exchanger.
The controller controls the other part of cooling medium in the second heat exchanger to enter the fourth sub-heat exchanger of the first heat exchanger through the first expansion valve, the first expansion valve throttles the medium-temperature high-pressure liquid cooling medium into low-temperature low-pressure wet steam through the first expansion valve, and the low-temperature low-pressure cooling medium evaporates and absorbs heat in the fourth sub-heat exchanger to reduce the indoor temperature.
As an alternative embodiment, the refrigerant medium having undergone evaporation heat absorption in the third sub heat exchanger enters the second compressor through the multi-way valve, specifically, the multi-way valve is a four-way valve, and the refrigerant medium having undergone evaporation heat absorption in the fourth sub heat exchanger enters the second connection pipe of the four-way valve, and then enters the first compressor from the intermediate connection pipe.
Based on the same technical concept, the embodiment of the application also provides a dual-temperature refrigeration device, as shown in fig. 6, which comprises:
A first control module 601 for controlling the cooling medium in the first and second compressors to enter the second heat exchanger to perform a heat releasing operation in the second heat exchanger;
A second control module 602, configured to control a portion of the cooling medium in the second heat exchanger to enter the third sub-heat exchanger of the first heat exchanger to perform first temperature refrigeration in the third sub-heat exchanger, and control another portion of the cooling medium in the second heat exchanger to enter the fourth sub-heat exchanger of the first heat exchanger to perform second temperature refrigeration in the fourth sub-heat exchanger, where the first temperature is higher than the second temperature.
Optionally, the second control module 602 includes:
The first control unit is used for controlling part of cooling medium in the second heat exchanger to enter the third sub heat exchanger of the first heat exchanger to perform first temperature refrigeration and controlling the cooling medium subjected to the first temperature refrigeration to return to the first compressor through the four-way valve;
And the second control unit is used for controlling the other part of the cooling medium in the second heat exchanger to enter the fourth sub heat exchanger of the first heat exchanger to perform second temperature refrigeration and controlling the cooling medium subjected to the second temperature refrigeration to return to the second compressor, wherein the frequency of the first compressor is higher than that of the second compressor.
Optionally, the first control module 601 includes:
And a third control unit for controlling a part of the cooling medium in the second heat exchanger to enter the third sub heat exchanger of the first heat exchanger through a third expansion valve, wherein the third expansion valve is used for throttling and depressurizing the evaporation medium after the heat release operation in the second heat exchanger so as to enable the evaporation medium after the throttling and depressurizing to enter the third sub heat exchanger.
Optionally, the second control unit includes:
And the control subunit is used for controlling the other part of cooling medium in the second heat exchanger to enter the fourth heat exchanger of the first heat exchanger through the first expansion valve, wherein the first expansion valve is used for throttling and reducing the pressure of the evaporation medium subjected to heat release operation in the second heat exchanger so as to enable the evaporation medium subjected to throttling and reducing to enter the fourth heat exchanger.
Optionally, the first control module 601 includes:
and a fourth control unit for controlling the cooling medium in the first compressor and the second compressor to enter the second heat exchanger through the multi-way valve, wherein the multi-way valve is used for controlling the first heat exchanger to perform heat release operation.
Optionally, the multi-way valve is a four-way valve, and the fourth control unit includes:
the second control subunit is used for controlling the cooling media in the first compressor and the second compressor to enter the top connecting pipe of the four-way valve;
and a third control subunit for controlling the cooling medium to enter the second heat exchanger from the first connecting pipe of the four-way valve.
Based on the same technical concept, the embodiment of the present invention further provides an electronic device, as shown in fig. 7, including a processor 701, a communication interface 702, a memory 703 and a communication bus 704, where the processor 701, the communication interface 702, and the memory 703 complete communication with each other through the communication bus 704,
A memory 703 for storing a computer program;
The processor 701 is configured to execute the program stored in the memory 703, thereby implementing the above steps.
The communication bus mentioned above for the electronic device may be a peripheral component interconnect standard (PERIPHERAL COMPONENT INTERCONNECT, PCI) bus or an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus, etc. The communication bus may be classified as an address bus, a data bus, a control bus, or the like. For ease of illustration, the figures are shown with only one bold line, but not with only one bus or one type of bus.
The communication interface is used for communication between the electronic device and other devices.
The Memory may include random access Memory (Random Access Memory, RAM) or may include Non-Volatile Memory (NVM), such as at least one disk Memory. Optionally, the memory may also be at least one memory device located remotely from the aforementioned processor.
The processor may be a general-purpose processor, including a central processing unit (Central Processing Unit, CPU), a network processor (Network Processor, NP), etc.; but may also be a digital signal processor (DIGITAL SIGNAL Processing, DSP), application SPECIFIC INTEGRATED Circuit (ASIC), field-Programmable gate array (Field-Programmable GATE ARRAY, FPGA) or other Programmable logic device, discrete gate or transistor logic device, discrete hardware components.
In yet another embodiment of the present invention, there is also provided a computer readable storage medium having stored therein a computer program which when executed by a processor implements the steps of any of the methods described above.
In yet another embodiment of the present invention, there is also provided a computer program product containing instructions which, when run on a computer, cause the computer to perform any of the methods of the above embodiments.
In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present invention, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, for example, by wired (e.g., coaxial cable, optical fiber, digital Subscriber Line (DSL)), or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid state disk Solid STATE DISK (SSD)), etc.
It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, 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, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is only a specific embodiment of the application to enable those skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (13)
1. A temperature control apparatus, the apparatus comprising: a compressor, a multi-way valve, a first heat exchanger and a second heat exchanger, wherein,
The compressor is respectively connected with the multi-way valve, the first heat exchanger and the second heat exchanger and used for completing temperature control;
the multi-way valve is respectively connected with the first heat exchanger and the second heat exchanger and is used for controlling the first heat exchanger and the second heat exchanger to perform heat absorption or heat release operation;
The first heat exchanger is connected with the second heat exchanger and is used for carrying out exothermic operation in a heating cycle and carrying out endothermic operation in a cooling cycle;
The second heat exchanger is used for carrying out heat release and heat absorption operation in a defrosting cycle and carrying out heat release operation in the refrigerating cycle;
Wherein in the refrigeration cycle, the first heat exchanger comprises a third sub heat exchanger and a fourth sub heat exchanger, the compressor comprises a first compressor and a second compressor, and the multi-way valve is a four-way valve;
One end of the first compressor is connected with one end of the third sub heat exchanger and one end of the fourth sub heat exchanger through the four-way valve and the second heat exchanger respectively, the other end of the third sub heat exchanger is connected with the other end of the first compressor through the four-way valve to complete a first temperature refrigeration cycle, and the other end of the fourth sub heat exchanger is connected with the other end of the second compressor to complete a second temperature refrigeration cycle, wherein the temperature value of the second temperature is lower than that of the first temperature;
wherein, in the heating cycle and the defrosting cycle, the second heat exchanger includes a first sub heat exchanger and a second sub heat exchanger;
one end of the compressor is connected with one end of the second sub-heat exchanger through the four-way valve and the first heat exchanger, and the other end of the compressor is connected with the other end of the second sub-heat exchanger through the four-way valve so as to complete a heating cycle;
one end of the compressor is also connected with one end of the second sub heat exchanger through the first sub heat exchanger, and the other end of the compressor is connected with the other end of the second sub heat exchanger through the four-way valve, so that defrosting circulation is completed.
2. The apparatus of claim 1, wherein the multi-way valve is a four-way valve comprising a top connection tube and a bottom connection device, the bottom connection device comprising a first connection tube, a second connection tube, and an intermediate connection tube between the first connection tube and the second connection tube;
The top connecting pipe and the middle connecting pipe are respectively connected with the compressor, the first connecting pipe is connected with the second heat exchanger, and the second connecting pipe is connected with the first heat exchanger.
3. The apparatus of claim 1, wherein, in the refrigeration cycle,
One end of the first compressor and one end of the second compressor are connected with a top connecting pipe of the four-way valve, a first connecting pipe of the four-way valve is connected with one end of the second heat exchanger so as to control an evaporation medium to perform heat release operation in the second heat exchanger through the first connecting pipe, and the other end of the second heat exchanger is respectively connected with one ends of a third sub heat exchanger and a fourth sub heat exchanger;
The other end of the third sub heat exchanger is connected with a second connecting pipe of the four-way valve, and the middle connecting pipe is connected with the other end of the first compressor so as to complete a first temperature refrigeration cycle;
The other end of the fourth sub heat exchanger is connected with the other end of the second compressor to complete a second temperature refrigeration cycle, wherein the first temperature is higher than the second temperature.
4. The apparatus of claim 3, wherein the device comprises a plurality of sensors,
The second heat exchanger is connected with the fourth sub heat exchanger through a first expansion valve, wherein the first expansion valve is used for throttling and depressurizing the evaporation medium subjected to heat release operation in the second heat exchanger, so that the evaporation medium subjected to throttling and depressurizing enters the fourth sub heat exchanger.
5. The apparatus of claim 3, wherein the device comprises a plurality of sensors,
The second heat exchanger is connected with the third sub heat exchanger through a third expansion valve, wherein the third expansion valve is used for throttling and depressurizing the evaporation medium subjected to heat release operation in the second heat exchanger so that the evaporation medium subjected to throttling and depressurizing enters the third sub heat exchanger.
6. A dual temperature refrigeration method for use with a temperature control device as claimed in claim 1, said method comprising:
controlling the cooling medium in the first compressor and the second compressor to enter the second heat exchanger to perform exothermic operation in the second heat exchanger;
Controlling a part of the cooling medium in the second heat exchanger to enter a third sub heat exchanger of the first heat exchanger so as to perform first temperature refrigeration in the third sub heat exchanger, and controlling another part of the cooling medium in the second heat exchanger to enter a fourth sub heat exchanger of the first heat exchanger so as to perform second temperature refrigeration in the fourth sub heat exchanger, wherein the first temperature is higher than the second temperature.
7. The method of claim 6, wherein the step of providing the first layer comprises,
Controlling a portion of the cooling medium in the second heat exchanger to enter the third sub-heat exchanger of the first heat exchanger includes: controlling a part of cooling medium in the second heat exchanger to enter a third sub heat exchanger of the first heat exchanger to perform first temperature refrigeration, and controlling the cooling medium subjected to the first temperature refrigeration to return to the first compressor through a four-way valve;
Controlling the further portion of the cooling medium in the second heat exchanger to enter the fourth sub-heat exchanger of the first heat exchanger comprises: and controlling the other part of cooling medium in the second heat exchanger to enter a fourth sub heat exchanger of the first heat exchanger to perform second temperature refrigeration, and controlling the cooling medium subjected to the second temperature refrigeration to return to the second compressor, wherein the frequency of the first compressor is higher than that of the second compressor.
8. The method of claim 6, wherein the step of providing the first layer comprises,
The controlling a portion of the cooling medium in the second heat exchanger to enter the third sub-heat exchanger of the first heat exchanger includes: and controlling a part of cooling medium in the second heat exchanger to enter a third sub-heat exchanger of the first heat exchanger through a third expansion valve, wherein the third expansion valve is used for throttling and reducing the pressure of the evaporation medium subjected to heat release operation in the second heat exchanger so that the evaporation medium subjected to throttling and reducing pressure enters the third sub-heat exchanger.
9. The method of claim 6, wherein the step of providing the first layer comprises,
The controlling the other portion of the cooling medium in the second heat exchanger to enter the fourth sub-heat exchanger of the first heat exchanger includes: and controlling the other part of cooling medium in the second heat exchanger to enter a fourth sub-heat exchanger of the first heat exchanger through a first expansion valve, wherein the first expansion valve is used for throttling and reducing the pressure of the evaporation medium subjected to heat release operation in the second heat exchanger so as to enable the evaporation medium subjected to throttling and reducing to enter the fourth sub-heat exchanger.
10. The method of claim 6, wherein the step of providing the first layer comprises,
The controlling the cooling medium in the first compressor and the second compressor to enter the second heat exchanger includes: the cooling medium in the first compressor and the second compressor is controlled to enter the second heat exchanger through a multi-way valve, wherein the multi-way valve is used for controlling the first heat exchanger to perform exothermic operation.
11. The method of claim 10, wherein the multiplex valve is a four-way valve, and wherein controlling the cooling medium in the first compressor and the second compressor to enter the second heat exchanger through the multiplex valve comprises:
controlling cooling media in the first compressor and the second compressor to enter a top connecting pipe of the four-way valve;
controlling the cooling medium to enter the second heat exchanger from a first connecting pipe of the four-way valve.
12. The electronic equipment is characterized by comprising a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory are communicated with each other through the communication bus;
A memory for storing a computer program;
A processor for implementing the steps of the method of any one of claims 6-11 when executing a program stored on a memory.
13. A computer readable storage medium, characterized in that the computer readable storage medium has stored therein a computer program which, when executed by a processor, implements the steps of the method of any of claims 6-11.
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