CN114383218B - 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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- CN114383218B CN114383218B CN202111524231.9A CN202111524231A CN114383218B CN 114383218 B CN114383218 B CN 114383218B CN 202111524231 A CN202111524231 A CN 202111524231A CN 114383218 B CN114383218 B CN 114383218B
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- 238000000034 method Methods 0.000 title claims abstract description 50
- 238000003860 storage Methods 0.000 title claims abstract description 20
- 239000003507 refrigerant Substances 0.000 claims abstract description 61
- 230000001105 regulatory effect Effects 0.000 claims abstract description 49
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 230000001276 controlling effect Effects 0.000 claims abstract description 17
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 3
- 238000004781 supercooling Methods 0.000 claims description 52
- 238000001816 cooling Methods 0.000 claims description 10
- 238000005057 refrigeration Methods 0.000 abstract description 13
- 238000010586 diagram Methods 0.000 description 12
- 230000006870 function Effects 0.000 description 10
- 238000004891 communication Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 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
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 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
Classifications
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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
- 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
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
- F25B2700/17—Speeds
- F25B2700/171—Speeds of the compressor
Abstract
The application relates to the technical field of intelligent household appliances, and discloses a method for controlling an air conditioner, which comprises the following steps: acquiring the operating frequency of a compressor; determining a switching state of the first flow rate adjusting device and/or a switching state of the second flow rate adjusting device according to an operation frequency of the compressor; the state of the first flow regulating device and/or the state of the second flow regulating device is/are adjusted according to the determined switching state. The first flow regulating device and the second flow regulating device which can be conducted in a bidirectional mode are additionally arranged on the heat exchanger, the operation frequency of the compressor is utilized to comprehensively control the opening or closing of the flow regulating device, a refrigerant flow path in the heat exchanger can be changed, the pressure loss of a refrigerant in a heat exchange pipeline is reduced, meanwhile, the flowing path is reduced, the power consumption is reduced, and then the air conditioner plays the best heat exchange performance when in refrigeration operation, heating operation or refrigeration and heating operation switching. The application also discloses a device for controlling the air conditioner, the air conditioner and a storage medium.
Description
Technical Field
The application relates to the technical field of intelligent household appliances, and for example relates to a method and device for controlling an air conditioner, the air conditioner and a storage medium.
Background
When the air conditioner is in refrigeration operation, the outdoor heat exchanger serves as a condenser to play a role in condensing and releasing heat, and the indoor heat exchanger serves as an evaporator to play a role in evaporating and absorbing heat so as to reduce the indoor temperature; when the air conditioner is in heating operation, the outdoor heat exchanger serves as an evaporator to absorb heat in an evaporation mode, and the indoor heat exchanger serves as a condenser to absorb heat in a condensation mode so as to raise indoor temperature. Thus, the temperature of the indoor air is regulated.
Currently, to ensure the performance requirements of outdoor heat exchangers in different modes of operation, the prior art discloses a heat exchanger having a plurality of heat exchange lines and bypass lines communicating with the heat exchange lines. A one-way valve is arranged on the bypass pipeline, and the one-way valve is conducted under a heating mode of the air conditioner so that a plurality of heat exchange pipelines form a parallel passage; the check valve is cut off under the refrigeration mode to enable the heat exchange pipelines to form a serial passage, so that variable flow division 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 heating or refrigerating performance requirement, but when the running frequency of the compressor of the air conditioner is unstable, a user cannot directly adjust the refrigerant flowing through a flow path of the pipeline of the outdoor heat exchanger, the pressure loss of a system can be increased due to 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 affected.
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, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.
According to the method and device for controlling the air conditioner, the air conditioner and the storage medium, heating operation or refrigerating operation is comprehensively considered, and the refrigerant flowing through a flow path and the heat exchange area of a heat exchange pipeline are adjusted, so that the power and refrigeration consumption is reduced, and the heat exchange efficiency of the heat exchanger is improved.
In some embodiments, a method for controlling an air conditioner, a heat exchanger of the air conditioner includes:
a subcooling tube group and a heat exchange tube group arranged in series;
a supercooling bypass pipe connected in parallel with the supercooling pipe group and the first pipe section of the heat exchange pipe group;
a shunt bypass pipe connected in parallel with the first pipe section and the second pipe section of the heat exchange pipe group;
the supercooling bypass pipe is provided with a first flow regulating device, the diversion 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 switching state of the first flow rate adjusting device and/or a switching state of the second flow rate adjusting device according to an operation frequency of the compressor;
the state of the first flow regulating device and/or the state of the second flow regulating device is/are adjusted according to the determined switching state.
In some embodiments, an apparatus for air conditioner control includes a processor and a memory storing program instructions, the processor configured to perform the method for air conditioner control of any of the above embodiments when executing the program instructions.
In some embodiments, an air conditioner includes means for air conditioner control.
In some embodiments, a storage medium stores program instructions that, when executed, perform the method for air conditioner control of any of the above embodiments.
In some embodiments, an air conditioner includes:
a heat exchange tube group;
a subcooling tube group connected in series with the heat exchange tube group; the supercooling tube group and the heat exchange tube group form a flow path with a single-row arrangement structure;
a supercooling bypass pipe connected in parallel with the supercooling pipe group and the first pipe section of the heat exchange pipe group;
a split bypass pipe connected in parallel with the first pipe section and at least a portion of the second pipe section of the heat exchange pipe group;
the supercooling expansion valve is arranged on the supercooling bypass pipe;
the shunt expansion valve is arranged on the shunt bypass pipe.
The method, the device, the air conditioner and the storage medium for controlling the air conditioner provided by the embodiment of the disclosure can realize the following technical effects:
the first flow regulating device and the second flow regulating device which can be conducted in a bidirectional mode are additionally arranged on the heat exchanger, the operation frequency of the compressor is utilized to comprehensively control the opening or closing of the flow regulating device, a refrigerant flow path in the heat exchanger can be changed, the pressure loss of a refrigerant in a heat exchange pipeline is reduced, meanwhile, the flowing path is reduced, the power consumption is reduced, and then the air conditioner plays the best heat exchange performance when in refrigeration operation, heating operation or refrigeration and heating operation switching. The control method of the embodiment of the disclosure saves operation energy consumption, improves the capacity of the air conditioner, ensures the continuous use requirement of users, is beneficial to the operation of the whole machine and ensures the user experience.
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 and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:
FIG. 1 is a schematic illustration 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 present disclosure;
fig. 3 is a schematic diagram of a refrigerant flow path of an outdoor heat exchanger in an air conditioner heating mode according to an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of a method for controlling an air conditioner provided by an embodiment of the present disclosure;
fig. 5 is a schematic diagram of a method for determining a switching state of a flow regulator in an air conditioner operation cooling mode according to an embodiment of the present disclosure;
FIG. 6 is a schematic diagram of a method for determining a switching state 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 of a method for determining a switching state of a flow regulator in a cooling mode of operation of another air conditioner according to an embodiment of the present disclosure;
fig. 8 is a schematic diagram of a method for determining a switching state of a flow regulator in an air conditioner operation heating mode according to an embodiment of the present disclosure;
fig. 9 is a schematic view of an apparatus for controlling an air conditioner provided in an embodiment of the present disclosure.
Reference numerals:
1: a heat exchange tube group; 2: a subcooling tube group; 3: supercooling bypass pipe; 4: a first flow rate adjustment device; 5: a shunt bypass pipe; 6: a second flow rate adjustment 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 techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. 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 still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing.
The terms first, second and the like in the description and in the claims of the embodiments of the disclosure and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe embodiments of the present disclosure. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.
The term "plurality" means two or more, unless otherwise indicated.
In the embodiment of the present disclosure, the character "/" indicates that the front and rear objects are an or relationship. For example, A/B represents: a or B.
The term "and/or" is an associative relationship that describes an object, meaning that there may be three relationships. For example, a and/or B, represent: a or B, or, A and B.
The term "corresponding" may refer to an association or binding relationship, and the correspondence between a and B refers to an association or binding relationship between a and B.
In the embodiment of the disclosure, the intelligent home appliance refers to a home appliance formed after a microprocessor, a sensor technology and a network communication technology are introduced into the home appliance, and has the characteristics of intelligent control, intelligent sensing and intelligent application, the operation process of the intelligent home appliance often depends on the application and processing of modern technologies such as the internet of things, the internet and an electronic chip, for example, the intelligent home appliance can realize remote control and management of a user on the intelligent home appliance by connecting the electronic appliance.
The refrigerant circulation system of the 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 the refrigerant in the refrigerant circulation system. When the air conditioner operates in a refrigerating mode, the refrigerant discharged by the compressor sequentially passes through the outdoor heat exchanger, the electronic expansion valve and the indoor heat exchanger through the four-way valve, and finally returns to the compressor for recompression. When the air conditioner operates in a heating mode, the refrigerant discharged by the compressor sequentially passes through the indoor heat exchanger, the electronic expansion valve and the outdoor heat exchanger through the four-way valve, and finally returns to the compressor for recompression.
An air conditioner having a variable flow dividing function, wherein the flow path of the internal refrigerant of the indoor heat exchanger and/or the outdoor heat exchanger can be changed according to the operation mode of the air conditioner. As shown in fig. 1, the 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 group 1, a subcooling tube group 2, a subcooling bypass pipe 3, a first flow rate adjusting device 4, a bypass pipe 5, and a second flow rate adjusting device 6. Wherein 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 constitute a flow path of a single-row arrangement structure; the supercooling bypass pipe 3 is connected in parallel with the supercooling pipe group 2 and the first pipe section; 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 regulating device 4 is arranged on the supercooling bypass pipe 3; the second flow regulating device 6 is arranged on the diversion bypass pipe 5; the heat exchange tube group 1 includes a first tube section and a second tube section.
Alternatively, the first flow rate adjusting device 4 and the second flow rate adjusting device 6 can be both conducted in two directions, wherein the first flow rate adjusting 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 group 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 group 1 connected to the supercooling tube group 2, and connected in parallel to the supercooling bypass tube 3, the second tube section may be a portion of the heat exchange tube group 1 other than the first tube section, wherein a portion of the second tube section connected in parallel to the bypass tube 5 is at least a portion of the second tube section, and a portion of the second tube section other than at least a portion of the second tube section is other than the second tube section.
Here, the parallel node of the subcooling pipe group 2 and the subcooling bypass pipe 3 may be a first node, the parallel node of the first pipe section and the bypass pipe 5 may be a second node, the parallel node of the first pipe section and the subcooling bypass pipe 3 may be a third node, and the parallel node of at least part of the bypass pipe 5 and the second pipe section may be a fourth node.
The outdoor heat exchanger is used as a condenser when the air conditioner operates in a refrigeration mode, as shown in fig. 2, a refrigerant circulates in the second pipe section, the first pipe section and the supercooling pipe section 2, the refrigerant circulates in a path from the fourth node to at least part of the second pipe section, flows through the third node to the first pipe section, flows through the second node to the supercooling pipe section 2, and controls the first flow regulating device 4 and the second flow regulating device 6 to be closed, so that the refrigerant does not flow through the first flow regulating device 4 and the second flow regulating device 6 in the process of circulating from the fourth node to the first node in the refrigeration operation, namely, the refrigerant does not flow through the supercooling bypass pipe section 3 and the bypass pipe section 5 in the process of circulating from the fourth node to the first node, and then flows through the supercooling pipe section 2, so that the refrigerant is subjected to sub-cooling when the refrigerant passes through the supercooling pipe section 2, and the refrigerant can be sufficiently cooled, so that the refrigerant cannot be evaporated too quickly, and the heat exchange efficiency of 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 the supercooling bypass pipe 3, the first pipe section and the diversion bypass pipe 5, the refrigerant flows in the path from the first node to the supercooling bypass pipe 3, and is diverted in the first node to form two paths, one path flows in the supercooling bypass pipe 3, the refrigerant flowing in the supercooling bypass pipe 3 flows to the third node, the two paths are diverted again in the third node, one path flows in the first pipe section, one path flows in the second node, one path of refrigerant flowing in the supercooling bypass pipe 2 is merged with one path of refrigerant flowing in the first pipe section, flows in the diversion bypass pipe 5, the other path flows in the third node to at least part of the second pipe section, the one path of refrigerant flowing in the diversion bypass pipe 5 is merged with one path of refrigerant flowing in at least part of the second pipe section, and the other paths flowing in the second pipe section are merged to form three paths of diversion.
Thus, by reasonably arranging the heat exchange tube group 1 and the supercooling tube group 2 and providing the first flow adjustment device 4 and the second flow adjustment device 6 on the bypass line, the first flow adjustment device 4 and the second flow adjustment device 6 are turned off when the outdoor heat exchanger is used as a condenser and turned on when the outdoor heat exchanger is used as an evaporator, a variable flow dividing function of the air conditioner is achieved. However, when the operation frequency of the compressor is unstable, the excessively long supercooling section increases the pressure loss of the system, and the refrigeration power consumption increases. Here, if the indoor heat exchanger has the heat exchange passage described above, the first flow rate adjustment device 4 and the second flow rate adjustment device 6 are turned on when the indoor heat exchanger is used as an evaporator in the air conditioner operation cooling mode, and turned off when the indoor heat exchanger is used as a condenser in the air conditioner operation heating mode.
In some embodiments, as shown in fig. 4, an embodiment of the present disclosure provides a method for controlling an air conditioner, including:
s10: acquiring the operating frequency of a compressor;
s20: the processor 100 determines the on-off state of the first flow rate adjustment device and/or the on-off state of the second flow rate adjustment device according to the operating frequency of the compressor;
s30: the state of the first flow regulating device and/or the state of the second flow regulating device is/are adjusted according to the determined switching state.
When the air conditioner is started or the refrigerating and heating are switched, if the air conditioner runs in the refrigerating mode at the moment, the first flow regulating device 4 and the second flow regulating device 6 are required to be cut off, so that a flow path is formed; if the air conditioner is started to operate in the heating mode at this time, the first flow adjusting device 4 and the second flow adjusting device 6 are required to be conducted, so that a plurality of parallel flow paths are formed.
Because the pressure of the air conditioner is unstable, it is difficult to satisfy the flow path of the refrigerant in the heat exchanger in different modes. At this time, the on-off state of the first flow regulator and/or the on-off state of the second flow regulator are/is adjusted timely to reduce the pressure loss of the refrigerant in the heat exchange pipeline, reduce the power consumption of the flowing path, and further improve the heat exchange performance of the heat exchanger.
Optionally, the processor 100 determines the on-off state of the first flow regulating device and/or the on-off state of the second flow regulating device based on the operating frequency of the compressor. The running modes of the air conditioner are different, and the on-off state requirements of the flow regulating device are also different; and the outdoor temperature affects the operating frequency of the compressor, which affects the flow rate and flow rate of the refrigerant. In this embodiment, the frequency of the compressor is obtained by acquiring the outdoor temperature; the processor 100 thus determines the on-off state of the flow regulating device according to the operation mode and the outdoor temperature. Here, the air conditioner is provided with a first sensor for monitoring an 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, in the case of the cooling operation of the air conditioner, the higher the operation frequency of the compressor, the larger the heat exchange area of the refrigerant.
In this embodiment, the air conditioner operates in a cooling mode, and the refrigerant enters the outdoor heat exchanger from the first port. The refrigerant flows from the fourth node into the bypass pipe, flows through the second node, and reaches the subcooling pipe group 2. Thus, the refrigerant flowing 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. When the first flow regulator 4 is in an on state, the refrigerant flowing path is reduced, the heat exchange area is reduced, and the pressure loss and the power consumption of the system are reduced. The air conditioner continuously operates at any time, the outdoor temperature is gradually increased, the operating frequency of the compressor is gradually increased, the refrigerant circulation speed is relatively high, and then the first flow regulating device 4 can be closed timely, and the second flow regulating device 6 can be opened.
However, in the present embodiment, as the operating frequency of the compressor gradually increases to the set target frequency, at this time, both the first flow rate adjusting device 4 and the second flow rate adjusting device 6 are closed, and the heat exchange tube group 1 and the supercooling tube group 2 form one flow path.
Optionally, as shown in fig. 5, the processor 100 determines a switching state of the first flow rate adjustment device and/or a switching state of the second flow rate adjustment device according to an operation frequency of the compressor, including:
s21: the operation frequency of the compressor is smaller than the first set frequency, the first flow regulating device is determined to be in an open state, and the second flow regulating device is determined to be in a closed state;
s22: adjusting the first flow adjusting device to be in an on state and the second flow adjusting device to be in an off state according to the determined on-off state;
s23: and controlling the fan rotating speed of the heat exchanger to rotate at a first target rotating speed.
Optionally, the first set frequency has a value ranging from 25Hz to 35Hz. Illustratively, the first set frequency may take any one of 25Hz, 30Hz, 35Hz. The first set frequency is here preferably 30Hz.
Alternatively, the first flow rate adjustment device and the switching state of the flow rate adjustment device depend on whether or not the value range of the first set frequency is in. If the operating frequency of the compressor is smaller than the first set frequency, that is, smaller than 30Hz, the first flow rate adjusting device is in an on state, and the second flow rate adjusting device is in an off state.
In this embodiment, after the first flow rate adjustment device is adjusted to be in an on state and the second flow rate adjustment device is adjusted to be in an off state according to the determined on-off state, the processor 100 also controls the fan speed of the heat exchanger to rotate at the first target speed. So as to reduce the energy consumption of the air conditioner.
Optionally, as shown in fig. 6, the processor 100 determines a switching state of the first flow rate adjustment device and/or a switching state of the second flow rate adjustment device according to an operation frequency of the compressor, including:
s31: the operation frequency of the compressor is larger than the first set frequency and smaller than the second set frequency, the heat exchange area of the supercooling pipe group is larger than the heat exchange area of the second pipe section, the first flow regulating device is in a closed state, and the second flow regulating device is in an open state;
s32: adjusting the first flow adjusting device to be in a closed state and the second flow adjusting device to be in an open state according to the determined on-off state;
s33: and controlling the fan rotating speed of the heat exchanger to rotate at a second target rotating speed.
In this embodiment, the operating frequency of the compressor is gradually increased, and after the operating frequency is increased to a certain frequency, the flow rate of the refrigerant is increased, so as to increase the refrigerant flow rate in the heat exchanger. At this time, the first flow rate adjusting device is closed, the second flow rate adjusting device is opened, the refrigerant is in a gaseous state, the refrigerant sequentially passes through the bypass pipe 5 and the supercooling pipe group 2, the state of the refrigerant is gradually mixed with gas and liquid, and the refrigerant flowing out from the first node is ensured to be fully condensed into a liquid state through the supercooling pipe group 2.
Because the heat exchange area of the refrigerant flowing through the supercooling pipe group 2 is larger than that of the refrigerant flowing through the second pipe section, at the moment, the refrigerant is preferentially made to flow through the supercooling pipe group 2, the heat exchange area of the refrigerant is increased, the pressure loss of the system is reduced, and the refrigeration power consumption is reduced.
In this embodiment, after the first flow rate adjusting device is adjusted to be in the off state and the second flow rate adjusting device is adjusted to be in the on state according to the determined on-off state, the processor 100 controls the fan speed of the heat exchanger to increase from the first target speed to the second target speed, so as to accelerate heat exchange of the heat exchanger, thereby improving the refrigerating effect of the whole system of the air conditioner.
Optionally, as shown in fig. 7, the processor 100 determines a switching state of the first flow rate adjustment device and/or a switching state of the second flow rate adjustment device according to an operation frequency of the compressor, including:
s41: the operation frequency of the compressor is larger than the second set frequency, the first flow regulating device is in a closed state, and the second flow regulating device is in a closed state;
s42: adjusting the first flow adjusting device to be in a closed state according to the determined switch state, and adjusting the second flow adjusting device to be in the closed state;
s43: and controlling the rotating speed of the fan of the heat exchanger to rotate at a third target rotating speed.
In this embodiment, the operating frequency of the compressor is increased to the target frequency, the first flow rate adjusting device is in a closed state, and the second flow rate adjusting device is in a closed state, at this time, the refrigerant sequentially passes through the first tube section, the second tube section and the supercooling tube group 2 of the heat exchange tube group 1, so that the refrigerant can be sufficiently cooled, and is not evaporated too quickly, thereby improving the heat exchange efficiency in the refrigeration operation process.
In this embodiment, the first flow rate adjusting device is adjusted to be in a closed state according to the determined on-off state, and after the second flow rate adjusting device is in the closed state, the processor 100 controls the fan speed of the heat exchanger to increase from the second target speed to the third target speed, so as to accelerate heat exchange of the heat exchanger and further improve the refrigerating effect of the whole system of the air conditioner.
In some embodiments, the higher the operating frequency of the compressor, the more heat exchange flow paths in parallel with the air conditioner heating operation.
In this embodiment, the air conditioner operates in a heating mode, and the refrigerant enters the outdoor heat exchanger from the second main port. The refrigerant flow path is from the first node to the supercooling bypass pipe, and flows through the third node to the second pipe section of the heat exchange pipe group 1. Thus, the refrigerant flowing path is reduced; and the refrigerant can 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 further improved.
In the present embodiment, as the operating frequency of the compressor gradually increases to the set target frequency, at this time, both the first flow rate adjusting device 4 and the second flow rate adjusting device 6 are opened, and the heat exchange tube group 1, the supercooling tube group 2, the supercooling bypass pipe 3, and the bypass pipe 5 form a plurality of parallel flow paths.
Alternatively, as shown in fig. 8, the processor 100 determines the on-off state of the first flow rate adjusting device according to the operation frequency of the compressor, including:
s51: the operation frequency of the compressor is smaller than the third set frequency, the state of the first flow regulating device is determined to be an open state, and the state of the first flow regulating device is determined to be a closed state;
s52: and adjusting the first flow adjusting device to be in an on state and the second flow adjusting device to be in an off state according to the determined on-off state.
In this embodiment, under the condition of heating operation of the air conditioner, the refrigerant in the gas-liquid mixed state flows in from the first node, so that the resistance is large, and in order to reduce the flow path resistance loss, the multi-path flow splitting can better reduce the overall power. When the operation frequency of the compressor is smaller than the third set frequency, the flow speed of the refrigerant is low, and the refrigerant flow in the heat exchanger is low. The refrigerant sequentially passes through the supercooling bypass pipe 3 and at least part of the second pipe section of the heat exchange pipe group 1, and finally flows out from the first main port.
The embodiment of the disclosure provides an air conditioner, which comprises a heat exchange tube group; a subcooling tube group connected in series with the heat exchange tube group; the supercooling tube group and the heat exchange tube group form a flow path with a single-row arrangement structure; a supercooling bypass pipe connected in parallel with the supercooling pipe group and the first pipe section of the heat exchange pipe group; a split bypass pipe connected in parallel with the first pipe section and at least a portion of the second pipe section of the heat exchange pipe group; 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 connection with fig. 9, an embodiment of the present disclosure provides an apparatus for air conditioner control, including a processor (processor) 100 and a memory (memory) 101. Optionally, the apparatus may further comprise 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 the 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.
Further, the logic instructions in the memory 101 described above may be implemented in the form of software functional units and may be stored in a computer readable storage medium when sold or used as a stand alone product.
The memory 101 is a computer readable storage medium that can be used to store a software program, a computer executable program, 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, i.e., 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, at least one application program required for a function; the storage data area may store data created according to the use of the terminal device, etc. Further, 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 embodiment.
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 may be a transitory computer readable storage medium or a non-transitory computer readable storage medium.
Embodiments of the present disclosure may be embodied in a software product stored on a storage medium, including one or more instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of a method according to embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium including: a plurality of media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or a transitory storage medium.
The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may involve structural, logical, electrical, process, and other changes. The embodiments represent only 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. Moreover, the terminology used in the present application is for the purpose of describing embodiments only and is not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a," "an," and "the" (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, when used in this application, the terms "comprises," "comprising," and/or "includes," and variations thereof, mean that the stated features, integers, steps, operations, elements, and/or components are present, but that the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof is not precluded. Without further limitation, an element defined by the phrase "comprising one …" does not exclude the presence of other like elements in a process, method or apparatus comprising such elements. In this context, each embodiment may be described with emphasis on the differences from the other embodiments, and the same similar parts between the various embodiments may be referred to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method sections disclosed in the embodiments, the description of the method sections may be referred to for relevance.
Those of skill in the art will 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 depends upon the particular application and design constraints imposed on the solution. The skilled artisan may use different methods for each particular application to achieve the described functionality, but such implementation should not be considered to be beyond the scope of the embodiments of the present disclosure. It will be clearly understood by those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.
In the embodiments disclosed herein, the disclosed methods, articles of manufacture (including but not limited to devices, apparatuses, etc.) may be practiced in other ways. For example, the apparatus embodiments described above are merely illustrative, and for example, the division of the units may be merely a logical function division, and there may be additional divisions when actually implemented, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. In addition, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form. The units described as separate units may or may not be physically separate, and units shown 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 may be selected according to actual needs to implement the present embodiment. In addition, each functional unit in the embodiments of the present disclosure may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
The flowcharts 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 that disclosed in the description, and sometimes no specific order exists between different operations or steps. For example, two consecutive operations or steps may actually be performed substantially in parallel, they may sometimes be performed in reverse order, which may be dependent on the functions involved. Each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Claims (10)
1. A method for air conditioner control, characterized in that a heat exchanger of the air conditioner comprises:
a subcooling tube group and a heat exchange tube group arranged in series;
a subcooling bypass pipe connected in parallel with the subcooling tube group and the first tube section of the heat exchange tube group;
a split bypass pipe connected in parallel with the first pipe section and the second pipe section of the heat exchange pipe group;
the sub-cooling bypass pipe is provided with a first flow regulating device, the diversion 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 a bidirectional manner;
the method comprises the following steps:
acquiring the operating frequency of a compressor;
determining a switching state of the first flow rate adjusting device and/or a switching state of the second flow rate adjusting device according to an operation frequency of the compressor;
adjusting the state of the first flow adjusting device according to the determined switch state and/or adjusting the state of the second flow adjusting device; under the condition of refrigerating operation of the air conditioner, the higher the operation frequency of the compressor is, the larger the heat exchange area of the refrigerant is;
in the case of a cooling operation of an air conditioner, determining a switching state of the first flow rate adjusting device and/or a switching state of the second flow rate adjusting device according to an operation frequency of the compressor, comprising:
the operation frequency of the compressor is smaller than a first set frequency, the first flow regulating device is determined to be in an open state, and the second flow regulating device is determined to be in a closed state;
the operation frequency of the compressor is larger than the first set frequency and smaller than the second set frequency, the heat exchange area of the supercooling pipe group is larger than the heat exchange area of the second pipe section, the first flow regulating device is determined to be in a closed state, and the second flow regulating device is determined to be in an open state;
the operation frequency of the compressor is larger than a second set frequency, the first flow adjusting device is determined to be in a closed state, and the second flow adjusting device is determined to be in a closed state.
2. The method according to claim 1, wherein the higher the operation frequency of the compressor, the more heat exchange channels are connected in parallel in the case of heating operation of the air conditioner.
3. The method of claim 2, wherein determining the on-off state of the first flow regulating device based on the operating frequency of the compressor comprises:
the operating frequency of the compressor is smaller than a third set frequency, and the state of the first flow rate adjusting device is determined to be an opening state.
4. A method according to any one of claims 1 to 3, wherein adjusting the first flow rate adjustment device to an on state and the second flow rate adjustment device to an off state in accordance with the determined on-off state further comprises:
and controlling the fan rotating speed of the heat exchanger to rotate at a first target rotating speed.
5. The method of claim 4, wherein adjusting the first flow adjustment device to an off state and the second flow adjustment device to an on state according to the determined on-off state further comprises:
controlling the fan rotating speed of the heat exchanger to rise from the first target rotating speed to the second target rotating speed;
and enabling the fan rotating speed of the heat exchanger to rotate at a second target rotating speed.
6. The method of claim 5, wherein adjusting the first flow adjustment device to an off state according to the determined on-off state, after adjusting the second flow adjustment device to an off state, further comprises:
controlling the fan rotating speed of the heat exchanger to rise from the second target rotating speed to a third target rotating speed;
and enabling the fan rotating speed of the heat exchanger to rotate at a third target rotating speed.
7. 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 6 when the program instructions are executed.
8. An air conditioner comprising the apparatus for air conditioner control according to claim 7.
9. The air conditioner as set forth in claim 8, further comprising:
a heat exchange tube group;
a subcooling tube group connected in series with the heat exchange tube group; the supercooling pipe group and the heat exchange pipe group form a flow path with a single-row arrangement structure;
a supercooling bypass pipe connected in parallel with the supercooling pipe group and the first pipe section of the heat exchange pipe group;
a bypass pipe connected in parallel with at least a portion of the first tube section and the second tube section of the heat exchange tube group;
the supercooling expansion valve is arranged on the supercooling bypass pipe;
and the shunt expansion valve is arranged on the shunt bypass pipe.
10. A storage medium storing program instructions which, when executed, perform the method for air conditioner control of any one of claims 1 to 6.
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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 |
| CN114383217A (en) * | 2021-12-14 | 2022-04-22 | 青岛海尔空调器有限总公司 | Method and device for controlling air conditioner, air conditioner and storage medium |
| CN114992719A (en) * | 2022-05-16 | 2022-09-02 | 珠海格力电器股份有限公司 | Outdoor heat exchange assembly, outdoor unit, air conditioning system and control method |
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Inventor after: Lao Chunfeng Inventor after: Xu Wenming Inventor after: Wang Fei Inventor after: Li Xiwu Inventor after: Zhang Long Inventor after: Jiang Jun Inventor after: Li Yang Inventor before: Xu Wenming Inventor before: Wang Fei Inventor before: Jiang Jun Inventor before: Li Yang |
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Effective date of registration: 20231103 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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