CN114383217A - Method and device for controlling air conditioner, air conditioner and storage medium - Google Patents
Method and device for controlling air conditioner, air conditioner and storage medium Download PDFInfo
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- CN114383217A CN114383217A CN202111524035.1A CN202111524035A CN114383217A CN 114383217 A CN114383217 A CN 114383217A CN 202111524035 A CN202111524035 A CN 202111524035A CN 114383217 A CN114383217 A CN 114383217A
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- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000004781 supercooling Methods 0.000 claims description 58
- 230000001105 regulatory effect Effects 0.000 claims description 43
- 238000001816 cooling Methods 0.000 claims description 19
- 238000010438 heat treatment Methods 0.000 claims description 16
- 230000001276 controlling effect Effects 0.000 claims description 11
- 239000003507 refrigerant Substances 0.000 abstract description 68
- 238000010586 diagram Methods 0.000 description 13
- 238000004891 communication Methods 0.000 description 8
- 230000006870 function Effects 0.000 description 8
- 238000005057 refrigeration Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/14—Heat exchangers specially adapted for separate outdoor units
- F24F1/16—Arrangement or mounting thereof
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/26—Refrigerant piping
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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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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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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- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
- F25B41/325—Expansion valves having two or more valve members
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
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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
- F25B49/022—Compressor control arrangements
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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
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2515—Flow valves
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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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/19—Pressures
- F25B2700/193—Pressures of the compressor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Signal Processing (AREA)
- Thermal Sciences (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The application relates to the technical field of intelligent household appliances, and discloses a method for controlling an air conditioner, which is used for acquiring the operating frequency of a compressor; determining a target opening degree of the first flow rate regulation device and/or a target opening degree of the second flow rate regulation device according to the running frequency of the compressor; the opening degree of the first flow rate adjustment device is adjusted to a target opening degree, and/or the opening degree of the second flow rate adjustment device is adjusted to a target opening degree. In order to adjust the refrigerant flow and the refrigerant flow path of the heat exchanger pipeline, a first flow adjusting device and a second flow adjusting device which can be conducted in two directions are additionally arranged on the heat exchanger, the opening degree of the flow adjusting device is controlled by the frequency of a compressor, the refrigerant flow and the refrigerant flow path in the heat exchanger can be changed, the pressure loss of the refrigerant in the heat exchanger pipeline is reduced, meanwhile, the flowing path is reduced, the power consumption is reduced, and the heat exchange performance of the heat exchanger is further improved. The application also discloses a device for controlling the air conditioner, the air conditioner and a storage medium.
Description
Technical Field
The present application relates to the field of intelligent household appliance technologies, and for example, to a method and an apparatus for controlling an air conditioner, and a storage medium.
Background
When the air conditioner operates in a refrigerating mode, the outdoor heat exchanger serves as a condenser to perform condensation heat release, and the indoor heat exchanger serves as an evaporator to perform evaporation heat absorption so as to reduce indoor temperature; when the air conditioner operates in heating mode, the outdoor heat exchanger serves as an evaporator to absorb heat in an evaporating mode, and the indoor heat exchanger serves as a condenser to dissipate heat in a condensing mode so as to improve indoor temperature. Thus, the temperature of the indoor air is adjusted.
At present, in order to meet the performance requirements of an outdoor heat exchanger in different working modes, the prior art discloses a heat exchanger which is provided with a plurality of heat exchange pipelines and bypass pipelines communicated with the heat exchange pipelines. The one-way valve is arranged on the bypass pipeline, and the one-way valve is communicated under the heating mode of the air conditioner to enable the plurality of heat exchange pipelines to form a parallel channel; the check valve is cut off in the refrigeration mode, so that the plurality of heat exchange pipelines form a serial passage, and variable shunting of the heat exchanger is realized.
In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:
the air conditioner with the variable flow dividing function can meet the requirements of heating or refrigerating performance, but when the running frequency of a compressor of the air conditioner is unstable, a user cannot directly adjust the flow rate of a refrigerant of an outdoor heat exchanger pipeline and the flow path of the refrigerant, the pressure loss of the system can be increased due to the overlong supercooling section, the refrigerating power consumption is increased, the outdoor heat exchanger cannot exert the optimal heat exchange performance, and the performance of the indoor heat exchanger is further influenced.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.
The embodiment of the disclosure provides a method and a device for controlling an air conditioner, the air conditioner and a storage medium, wherein heating operation or refrigerating operation is comprehensively considered, the flow rate of a refrigerant of a heat exchange pipeline and the flow path of the refrigerant flowing through the refrigerant are adjusted, and power consumption and refrigeration consumption are further reduced, so that the heat exchange efficiency of a heat exchanger is improved.
In some embodiments, a method for air conditioner control, a heat exchanger of an air conditioner includes:
the supercooling pipe group and the heat exchange pipe group are arranged in series;
the supercooling bypass pipe is connected with the supercooling pipe group and the first pipe section of the heat exchange pipe group in parallel;
the shunt bypass pipe is connected with the first pipe section and the second pipe section of the heat exchange pipe set in parallel;
the supercooling bypass pipe is provided with a first flow regulating device, the shunting bypass pipe is provided with a second flow regulating device, and the first flow regulating device and the second flow regulating device can be conducted in two directions;
the method comprises the following steps:
acquiring the operating frequency of a compressor;
determining a target opening degree of the first flow rate regulation device and/or a target opening degree of the second flow rate regulation device according to the running frequency of the compressor;
the opening degree of the first flow rate adjustment device is adjusted to a target opening degree, and/or the opening degree of the second flow rate adjustment device is adjusted to a target opening degree.
In some embodiments, an apparatus for air conditioner control includes a processor and a memory storing program instructions, the processor configured to execute the method for air conditioner control described in any of the above embodiments when executing the program instructions.
In some embodiments, an air conditioner includes an apparatus for air conditioner control.
In some embodiments, a storage medium stores program instructions that, when executed, perform a method for air conditioner control as described in any of the above embodiments.
In some embodiments, an air conditioner includes:
a heat exchange tube set;
the supercooling pipe group is connected with the heat exchange pipe group in series; the supercooling pipe group and the heat exchange pipe group form a flow path with a single-row arrangement structure;
the supercooling bypass pipe is connected with the first pipe section of the supercooling pipe group and the first pipe section of the heat exchange pipe group in parallel;
the split bypass pipe is connected with the first pipe section and at least part of the second pipe section of the heat exchange pipe set in parallel;
the supercooling expansion valve is arranged on the supercooling bypass pipe;
and the shunt expansion valve is arranged on the shunt bypass pipe.
The method and the device for controlling the air conditioner, the air conditioner and the storage medium provided by the embodiment of the disclosure can realize the following technical effects:
in order to adjust the refrigerant flow and the refrigerant flow path of the heat exchanger pipeline, a first flow adjusting device and a second flow adjusting device which can be conducted in two directions are additionally arranged on the heat exchanger, the opening degree of the flow adjusting devices is controlled by using the frequency of a compressor, the refrigerant flow and the refrigerant flowing through flow path in the heat exchanger can be changed, the pressure loss of the refrigerant in the heat exchanger pipeline is reduced, meanwhile, the flowing through path is reduced, the power consumption is reduced, the heat exchange performance of the heat exchanger is further improved, the requirement of continuous refrigeration of a user is met, and the running of the whole machine is facilitated.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:
fig. 1 is a schematic diagram of an outdoor heat exchanger provided by an embodiment of the present disclosure;
fig. 2 is a schematic diagram of a refrigerant flow path of an outdoor heat exchanger in a cooling mode of an air conditioner according to an embodiment of the disclosure;
fig. 3 is a schematic diagram of a refrigerant flow path of the outdoor heat exchanger in the heating mode of the air conditioner according to the embodiment of the disclosure;
FIG. 4 is a schematic diagram of a method for controlling an air conditioner according to an embodiment of the present disclosure;
fig. 5 is a schematic diagram illustrating a method for determining an opening degree of a flow rate adjusting device in a cooling mode of an air conditioner according to an embodiment of the disclosure;
fig. 6 is a schematic diagram illustrating a method for determining an opening degree of a flow regulator in a cooling mode of operation of another air conditioner according to an embodiment of the present disclosure;
fig. 7 is a schematic diagram illustrating a method for determining an opening degree of a flow rate adjusting device in a heating mode of an air conditioner according to an embodiment of the present disclosure;
fig. 8 is a schematic diagram of an apparatus for controlling an air conditioner according to an embodiment of the present disclosure.
Reference numerals:
1: a heat exchange tube set; 2: a super-cooling pipe group; 3: a sub-cooling bypass pipe; 4: a first flow regulating device; 5: a bypass pipe is shunted; 6: a second flow regulating device;
100: a processor; 101: a memory; 102: a communication interface; 103: a bus.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The term "plurality" means two or more unless otherwise specified.
In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.
The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.
The term "correspond" may refer to an association or binding relationship, and a corresponds to B refers to an association or binding relationship between a and B.
In the embodiment of the disclosure, the intelligent household appliance is a household appliance formed by introducing a microprocessor, a sensor technology and a network communication technology into the household appliance, and has the characteristics of intelligent control, intelligent sensing and intelligent application, the operation process of the intelligent household appliance usually depends on the application and processing of modern technologies such as internet of things, internet and an electronic chip, for example, the intelligent household appliance can realize the remote control and management of a user on the intelligent household appliance by connecting the intelligent household appliance with the electronic device.
The refrigerant circulating system of an air conditioner generally comprises a compressor, an outdoor heat exchanger, an electronic expansion valve, an indoor heat exchanger and a four-way valve, wherein the four-way valve is used for changing the flow direction of a refrigerant in the refrigerant circulating system. When the air conditioner operates in a refrigeration mode, the refrigerant discharged by the compressor passes through the outdoor heat exchanger, the electronic expansion valve and the indoor heat exchanger in sequence through the four-way valve, and finally returns to the compressor to be compressed again. When the air conditioner runs in a heating mode, the refrigerant discharged by the compressor passes through the indoor heat exchanger, the electronic expansion valve and the outdoor heat exchanger in sequence through the four-way valve, and finally returns to the compressor for recompression.
The air conditioner with variable flow dividing function has indoor heat exchanger and/or outdoor heat exchanger with inner refrigerant flow path capable of being changed based on the running mode of the air conditioner. As shown in fig. 1, an embodiment of the present disclosure provides an air conditioner in which a refrigerant flow path of an outdoor heat exchanger is changed according to an operation mode of the air conditioner.
As shown in fig. 1, the outdoor heat exchanger includes a heat exchange tube bank 1, a supercooling tube bank 2, a supercooling bypass tube 3, a first flow rate adjusting device 4, a bypass flow dividing tube 5, and a second flow rate adjusting device 6. The supercooling tube group 2 and the heat exchange tube group 1 are connected in series, and the supercooling tube group 2 and the heat exchange tube group 1 form a flow path with a single-row arrangement structure; the supercooling bypass pipe 3 is connected with the supercooling pipe group 2 and the first pipe section in parallel; the shunt-bypass pipe 5 is connected in parallel with at least part of the first pipe section and the second pipe section; the first flow regulator 4 is arranged on the supercooling bypass pipe 3; the second flow regulating device 6 is arranged on the shunt bypass pipe 5; the heat exchange tube set 1 comprises a first tube section and a second tube section.
Optionally, both the first flow regulating device 4 and the second flow regulating device 6 can be conducted in two directions, wherein the first flow regulating device 4 is a solenoid valve or an electronic expansion valve; the second flow regulating device 6 is a solenoid valve or an electronic expansion valve.
Herein, the heat exchange tube bank 1 includes a first tube section and a second tube section connected in series, the first tube section may be a section of the heat exchange tube bank 1 connected to the supercooling tube bank 2 and connected in parallel with the supercooling bypass tube 3, and the second tube section may be a part of the heat exchange tube bank 1 except the first tube section, wherein a part of the second tube section connected in parallel with the diversion bypass tube 5 is at least a part of the second tube section, and a part of the second tube section except the at least part of the second tube section is the other tube section of the second tube section.
Here, the parallel connection node of the supercooling tube group 2 and the supercooling bypass tube 3 may be a first node, the parallel connection node of the first tube segment and the bypass split tube 5 may be a second node, the parallel connection node of the first tube segment and the supercooling bypass tube 3 may be a third node, and the parallel connection node of the bypass split tube 5 and at least a part of the second tube segment may be a fourth node.
When the air conditioner operates in a cooling mode, the outdoor heat exchanger serves as a condenser, as shown in fig. 2, a refrigerant flows in the second pipe section, the first pipe section and the supercooling pipe group 2, the flow path of the refrigerant is at least a part of the pipe section entering the second pipe section from the fourth node, flows through the third node, flows to the first pipe section, flows through the second node, flows to the supercooling pipe group 2, and controls the first flow regulating device 4 and the second flow regulating device 6 to be closed, so that the flow process of the refrigerant from the fourth node to the first node does not flow through the first flow regulating device 4 and the second flow regulating device 6 when the air conditioner operates in a cooling mode, namely, the flow process of the refrigerant from the fourth node to the first node does not flow through the supercooling bypass pipe 3 and the shunting bypass pipe 5, the refrigerant passes through the second pipe section of the heat exchange pipe group 1 to the first pipe section and then passes through the supercooling pipe group 2, so that the refrigerant is cooled when passing through the supercooling pipe group 2, the refrigerant can be fully cooled and can not be evaporated too fast, so that the heat exchange efficiency in the refrigeration operation process is improved.
When the air conditioner operates in a heating mode, the outdoor heat exchanger serves as an evaporator, as shown in fig. 3, a refrigerant flows in a supercooling bypass pipe 3, a first pipe section and a shunt bypass pipe 5, the flow path of the refrigerant enters the supercooling bypass pipe 3 from a first node, two paths are shunted at the first node, one path flows to a supercooling pipe group 2, the other path flows to the supercooling bypass pipe 3, the refrigerant flowing to the supercooling bypass pipe 3 flows to a third node, two paths are shunted at the third node again, one path flows to the first pipe section, at the second node, the refrigerant flowing through the supercooling bypass pipe group 2 is merged with the refrigerant flowing through the first pipe section, flows to the shunt bypass pipe 5, at the third node, the refrigerant flows to at least part of the second pipe section, at the fourth node, the refrigerant flowing through the shunt bypass pipe 5 is merged with the refrigerant flowing through at least part of the second pipe section, and flows to the other pipe section of the second pipe section, three paths of shunt are formed.
In this way, by reasonably replacing the heat pipe set 1 and the supercooling pipe set 2 and arranging the first flow regulating device 4 and the second flow regulating device 6 on the bypass pipeline, the first flow regulating device 4 and the second flow regulating device 6 are cut off when the outdoor heat exchanger is used as a condenser, and are conducted when the outdoor heat exchanger is used as an evaporator, so that the variable flow dividing function of the air conditioner is realized. However, when the operating frequency of the compressor is unstable, the pressure loss of the system is increased due to the excessively long supercooling section, and the refrigeration power consumption is increased. Here, if the indoor heat exchanger has the heat exchange path, the first flow rate adjustment device 4 and the second flow rate adjustment device 6 are turned on when the indoor heat exchanger is operated as an evaporator in the air-conditioning operation cooling mode, and turned off when the indoor heat exchanger is operated as a condenser in the air-conditioning operation heating mode.
In some embodiments, as shown in fig. 4, the disclosed embodiments provide a method for air conditioner control, including:
s10: acquiring the operating frequency of a compressor;
s20: the processor 100 determines a target opening degree of the first flow rate adjustment device and/or a target opening degree of the second flow rate adjustment device according to the operation frequency of the compressor;
s30: the opening degree of the first flow rate adjustment device is adjusted to a target opening degree, and/or the opening degree of the second flow rate adjustment device is adjusted to a target opening degree.
When the air conditioner is started or switched between cooling and heating, if the air conditioner runs in a cooling mode at the moment, the first flow regulating device 4 and the second flow regulating device 6 are required to be cut off, and a flow path is formed; if the air conditioner is in the heating mode during the starting operation, the first flow regulating device 4 and the second flow regulating device 6 are required to be conducted, that is, a plurality of parallel flow paths are formed.
Due to unstable pressure of the air conditioner, it is difficult to satisfy the flow rate and the refrigerant flow path of the refrigerant in the heat exchanger in different modes. At the moment, the opening degree of the first flow regulating device and/or the opening degree of the second flow regulating device are/is timely regulated so as to reduce the pressure loss of the refrigerant in a heat exchanger pipeline, reduce the flowing path and reduce the power consumption, and further improve the heat exchange performance of the heat exchanger.
Alternatively, the processor 100 determines a target opening degree of the first flow rate adjustment device, and/or a target opening degree of the second flow rate adjustment device, according to the operating frequency of the compressor. The air conditioners have different operation modes and different opening requirements of the flow regulating device; and the outdoor temperature affects the operation frequency of the compressor, which affects the flow rate and flow rate of the refrigerant. In the embodiment, the frequency of the compressor is obtained by obtaining the outdoor temperature; the processor 100 thus determines the opening of the flow regulating device in dependence of the operating mode and the outdoor temperature. Here, the air conditioner is provided with a first sensor for monitoring outdoor temperature, which is electrically connected to the processor 100 and transmits an outdoor temperature signal to the processor 100 in real time.
In some embodiments, the higher the operating frequency of the compressor, the larger the target opening degree of the second flow rate adjustment device is in the case of the air conditioner cooling operation.
In this embodiment, the air conditioner operates in a cooling mode, and the refrigerant enters the outdoor heat exchanger from the first main port. The circulation path of the refrigerant enters the bypass branch pipe from the fourth node, flows through the second node and reaches the supercooling pipe group 2. Thus, the refrigerant flow path is reduced; at this time, if the outdoor temperature is low, the operation frequency of the compressor is low, and the refrigerant circulation speed is relatively slow. Under the condition that the opening degree of the second flow regulating device 4 is smaller, the refrigerant flow is smaller, the heat exchange area is reduced, the pressure loss of the system can be further reduced, and the power consumption is reduced. At any time, the outdoor temperature gradually rises, the operating frequency of the compressor gradually rises, the refrigerant circulation speed is relatively high, and then the opening degree of the second flow regulating device 4 gradually increases.
However, in the present embodiment, as the operating frequency of the compressor is gradually increased to the set target frequency, at this time, the first flow rate regulation device 4 and the second flow rate regulation device 6 are both closed, and the heat exchange tube bank 1 and the supercooling tube bank 2 form one flow path.
Alternatively, as shown in fig. 5, the processor 100 determines the target opening degree of the second flow rate adjustment device according to the operation frequency of the compressor, including:
s21: the running frequency of the compressor is smaller than a first set frequency, and the opening degree of the second flow regulating device is determined to be a first target opening degree;
s22: adjusting the opening degree of the second flow rate adjustment device to a first target opening degree;
s23: and controlling the rotating speed of a fan of the heat exchanger to rotate at a first target rotating speed.
Optionally, the first setting frequency has a value in a range of 25Hz to 35 Hz. For example, the first set frequency may be any one of 25Hz, 30Hz, and 35 Hz. The first set frequency is here preferably 30 Hz.
Optionally, the opening degree of the first target opening degree depends on a value range of the first setting frequency. If the first set frequency is 25Hz, the valve port of the second flow regulating device is opened by 40 percent; the first set frequency is 30Hz, and the valve port of the second flow regulating device is opened by 50 percent; the first set frequency was selected to be 35Hz and the valve port of the second flow regulating device was opened 60%.
In the present embodiment, the first flow rate adjustment device is in the off state, and the opening degree of the second flow rate adjustment device is adjusted to the first target opening degree.
In this embodiment, after the opening degree of the second flow rate adjusting device is adjusted to the first target opening degree, the processor 100 further controls the fan speed of the heat exchanger to rotate at the first target speed. To reduce the energy consumption of the air conditioner.
Alternatively, as shown in fig. 6, the processor 100 determines the target opening degree of the second flow rate adjustment device according to the operation frequency of the compressor, including:
s31: and the operating frequency of the compressor is greater than the first set frequency and less than the second set frequency, and the opening degree of the second flow regulating device is determined to be a second target opening degree which is greater than the first target opening degree.
S32: adjusting the opening degree of the second flow rate adjustment device to a second target opening degree;
s33: and controlling the rotating speed of the fan of the heat exchanger to rotate at a second target rotating speed.
In this embodiment, the operating frequency of the compressor gradually increases, and after the operating frequency increases to a certain frequency, the opening degree of the second flow rate adjusting device increases accordingly, so that the flow rate of the refrigerant is increased, and the flow rate of the refrigerant in the heat exchanger is increased. The refrigerant is gaseous, follows the refrigerant and passes through reposition of redundant personnel bypass pipe 5 and supercooling bank of tubes 2 in proper order, and the state of refrigerant is through gas-liquid mixture gradually, passes through supercooling bank of tubes 2, and the refrigerant that flows out at the first node at last guarantees fully to condense to liquid.
In the present embodiment, the first flow rate adjustment device is in the off state, and the opening degree of the second flow rate adjustment device is adjusted to the second target opening degree.
In this embodiment, after the opening degree of the second flow rate adjusting device is adjusted to the second target opening degree, the processor 100 controls the rotation speed of the fan of the heat exchanger to be increased from the first target rotation speed to the second target rotation speed, so as to accelerate the heat exchange of the heat exchanger, thereby improving the cooling effect of the whole air conditioner system.
In some embodiments, the target opening degree of the first flow rate adjustment device is smaller than the target opening degree of the second flow rate adjustment device in the case of the cooling operation of the air conditioner.
In this embodiment, because the compressor operating frequency is lower, in order to make the refrigerant directly pass through the supercooling pipe group 2 for heat exchange, the target opening degree of the second flow regulating device is always greater than that of the first flow regulating device, so that the refrigerant directly flows out from the second main port after passing through the supercooling pipe group 2 to complete heat exchange.
In some embodiments, in the case of the air conditioner heating operation, the higher the operation frequency of the compressor, the larger the target opening degree of the first flow rate regulation device.
In this embodiment, the air conditioner operates in a heating mode, and the refrigerant enters the outdoor heat exchanger from the second header port. The flow path of the refrigerant enters the supercooling bypass pipe from the first node, flows through the third node and reaches the second pipe section of the heat exchange pipe set 1. Thus, the refrigerant flow path is reduced; at this time, if the outdoor temperature is low, the operation frequency of the compressor is low, and the refrigerant circulation speed is relatively slow. Under the condition that the opening degree of the first flow adjusting device 6 is smaller, the refrigerant flow is smaller, the heat exchange area is reduced, the pressure loss of the system can be further reduced, and the power consumption is reduced. The outdoor temperature gradually rises along with the continuous operation of the air conditioner, the operating frequency of the compressor gradually rises, the refrigerant circulation speed is relatively high, and then the opening degree of the first flow regulating device 6 gradually increases.
In this embodiment, when heating operation is performed, the refrigerant does not pass through the supercooling pipeline, so that the pressure loss of the system is reduced, and the heat exchange efficiency of the system is improved.
In the present embodiment, as the operating frequency of the compressor gradually increases to the set target frequency, at this time, the first flow rate adjustment device 4 and the second flow rate adjustment device 6 are both opened, and the heat exchange tube bank 1, the supercooled tube bank 2, the supercooled bypass tube 3, and the bypass flow dividing bypass tube 5 form a plurality of parallel flow paths.
Alternatively, as shown in fig. 7, the processor 100 determines the target opening degree of the first flow rate adjustment device according to the operation frequency of the compressor, including:
s41: the running frequency of the compressor is less than the third set frequency, and the opening degree of the first flow regulating device is determined as a target opening degree;
s42: the opening degree of the first flow rate adjustment device is adjusted to a target opening degree.
In the embodiment, in the case of the heating operation of the air conditioner, the refrigerant in a gas-liquid mixed state flows in from the first node, so that the resistance is large, and the power of the whole air conditioner can be better reduced by multi-path flow division in order to reduce the resistance loss of the flow path. When the operating frequency of the compressor is lower than the third set frequency, the flow rate of the refrigerant is lower, and the refrigerant flow in the heat exchanger is less. The refrigerant passes through the supercooling bypass pipe 3 and at least part of the second pipe section of the heat exchange pipe group 1 in sequence and finally flows out of the first main port.
In the present embodiment, the opening degree of the first flow rate adjustment device is adjusted to the target opening degree, and the second flow rate adjustment device is in the cutoff state.
The embodiment of the present disclosure provides an air conditioner, including a heat exchange tube set; the supercooling pipe group is connected with the heat exchange pipe group in series; the supercooling pipe group and the heat exchange pipe group form a flow path with a single-row arrangement structure; the supercooling bypass pipe is connected with the first pipe section of the supercooling pipe group and the first pipe section of the heat exchange pipe group in parallel; the split bypass pipe is connected with the first pipe section and at least part of the second pipe section of the heat exchange pipe set in parallel; the supercooling expansion valve is arranged on the supercooling bypass pipe; the shunt expansion valve is arranged on the shunt bypass pipe.
As shown in fig. 8, an embodiment of the present disclosure provides an apparatus for controlling an air conditioner, including a processor (processor)100 and a memory (memory) 101. Optionally, the apparatus may also include a Communication Interface (Communication Interface)102 and a bus 103. The processor 100, the communication interface 102, and the memory 101 may communicate with each other via a bus 103. The communication interface 102 may be used for information transfer. The processor 100 may call logic instructions in the memory 101 to perform the method for air conditioner control of the above-described embodiment.
In addition, the logic instructions in the memory 101 may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products.
The memory 101, which is a computer-readable storage medium, may be used for storing software programs, computer-executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 100 executes functional applications and data processing by executing program instructions/modules stored in the memory 101, that is, implements the method for air conditioner control in the above-described embodiments.
The memory 101 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like. In addition, the memory 101 may include a high-speed random access memory, and may also include a nonvolatile memory.
The embodiment of the disclosure provides an air conditioner, which comprises the device for controlling the air conditioner described in any one of the embodiments.
Embodiments of the present disclosure provide a computer-readable storage medium storing computer-executable instructions configured to perform the above-described method for air conditioner control.
The computer-readable storage medium described above may be a transitory computer-readable storage medium or a non-transitory computer-readable storage medium.
The technical solution of the embodiments of the present disclosure may be embodied in the form of a software product, where the computer software product is stored in a storage medium and includes one or more instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method of the embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium comprising: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes, and may also be a transient storage medium.
The above description and drawings sufficiently illustrate embodiments of the disclosure 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. Furthermore, the words used in the specification are words of description only and are not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, the terms "comprises" and/or "comprising," when used in this application, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. 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. In this document, each embodiment may be described with emphasis on differences from other embodiments, and the same and similar parts between the respective embodiments may be referred to each other. For methods, products, etc. of the embodiment disclosures, reference may be made to the description of the method section for relevance if it corresponds to the method section of the embodiment disclosure.
Those of skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software may depend upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments. It can be clearly understood by the skilled person that, for convenience and brevity of description, the specific working processes of the system, the apparatus and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, apparatuses, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units may be merely a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to implement the present embodiment. In addition, functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than disclosed in the description, and sometimes there is no specific order between the different operations or steps. For example, two sequential operations or steps may in fact be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. Each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Claims (12)
1. A method for controlling an air conditioner, wherein a heat exchanger of the air conditioner comprises:
the supercooling pipe group and the heat exchange pipe group are arranged in series;
a sub-cooling bypass pipe connected in parallel with the sub-cooling pipe group and the first pipe section of the heat exchange pipe group;
a bypass line connected in parallel with the first line section and the second line section of the heat exchange tube bank;
the supercooling bypass pipe is provided with a first flow adjusting device, the shunt bypass pipe is provided with a second flow adjusting device, and both the first flow adjusting device and the second flow adjusting device can be conducted in two directions;
the method comprises the following steps:
acquiring the operating frequency of a compressor;
determining a target opening degree of the first flow rate adjustment device and/or a target opening degree of the second flow rate adjustment device according to the operating frequency of the compressor;
the opening degree of the first flow rate adjustment device is adjusted to a target opening degree, and/or the opening degree of the second flow rate adjustment device is adjusted to a target opening degree.
2. The method according to claim 1, wherein the target opening degree of the second flow rate adjustment device is larger as the operation frequency of the compressor is higher in case of the cooling operation of the air conditioner.
3. The method of claim 2, wherein determining the target opening of the second flow regulating device based on the operating frequency of the compressor comprises:
and determining the opening degree of the second flow regulating device to be a first target opening degree when the operating frequency of the compressor is less than a first set frequency.
4. The method of claim 3, wherein the operating frequency of the compressor is greater than a first set frequency and less than a second set frequency, and the opening degree of the second flow regulating device is determined to be a second target opening degree, the second target opening degree being greater than the first target opening degree.
5. The method according to claim 1, wherein the target opening degree of the first flow rate adjustment device is smaller than the target opening degree of the second flow rate adjustment device in the case of air conditioner cooling operation.
6. The method according to any one of claims 1 to 5, wherein the target opening degree of the first flow rate adjustment device is larger as the operation frequency of the compressor is higher in the case of the air conditioner heating operation.
7. The method of claim 6, wherein determining the target opening of the first flow regulator based on the operating frequency of the compressor comprises:
and the operating frequency of the compressor is less than a third set frequency, and the opening degree of the first flow regulating device is determined as a target opening degree.
8. An apparatus for air conditioner control comprising a processor and a memory storing program instructions, wherein the processor is configured to perform the method for air conditioner control of any one of claims 1 to 7 when executing the program instructions.
9. An air conditioner characterized by comprising the apparatus for air conditioner control as claimed in claim 8.
10. A storage medium storing program instructions, characterized in that the program instructions, when executed, perform the method for air conditioner control according to any one of claims 1 to 7.
11. An air conditioner, comprising:
a heat exchange tube set;
the supercooling pipe group is connected with the heat exchange pipe group in series; the supercooling pipe group and the heat exchange pipe group form a flow path with a single-row arrangement structure;
a sub-cooling bypass pipe connected in parallel with the first pipe section of the heat exchange pipe set and the sub-cooling pipe set;
a bypass line connected in parallel with at least some of the first and second sections of the heat exchange tube bank;
the supercooling expansion valve is arranged on the supercooling bypass pipe;
and the shunt expansion valve is arranged on the shunt bypass pipe.
12. The air conditioner according to claim 11, further comprising: the apparatus for air conditioner control as claimed in claim 8.
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| WO2023041096A1 (en) * | 2021-09-19 | 2023-03-23 | 青岛海尔空调器有限总公司 | Control method and control apparatus for air conditioner, and storage medium |
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Inventor after: Wang Fei Inventor after: Wu Liqin Inventor after: Xu Wenming Inventor after: Li Xiao Inventor after: Zhang Peng Inventor after: Wu Changying Inventor before: Xu Wenming Inventor before: Wang Fei Inventor before: Zhang Peng Inventor before: Wu Changying |
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Effective date of registration: 20231030 Address after: No. 118 Jinliu South Road, Zhengzhou Economic and Technological Development Zone, Henan Province, 450048 Applicant after: ZHENGZHOU HAIER AIR CONDITIONER Co.,Ltd. Applicant after: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Applicant after: Haier Zhijia Co.,Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Applicant before: QINGDAO HAIER AIR-CONDITIONING ELECTRONIC Co.,Ltd. Applicant before: Haier Zhijia Co.,Ltd. |
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