CN114659305A - Control method and control system for air conditioner refrigerant circulation, electronic equipment and medium - Google Patents
Control method and control system for air conditioner refrigerant circulation, electronic equipment and medium Download PDFInfo
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- CN114659305A CN114659305A CN202210307353.0A CN202210307353A CN114659305A CN 114659305 A CN114659305 A CN 114659305A CN 202210307353 A CN202210307353 A CN 202210307353A CN 114659305 A CN114659305 A CN 114659305A
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- 239000003507 refrigerant Substances 0.000 title claims abstract description 173
- 238000000034 method Methods 0.000 title claims abstract description 38
- 230000002159 abnormal effect Effects 0.000 claims abstract description 46
- 238000004590 computer program Methods 0.000 claims description 12
- 238000004378 air conditioning Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 description 46
- 238000001816 cooling Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 238000010079 rubber tapping Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
- F25B41/42—Arrangements for diverging or converging flows, e.g. branch lines or junctions
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/36—Responding to malfunctions or emergencies to leakage of heat-exchange fluid
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/49—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring ensuring correct operation, e.g. by trial operation or configuration checks
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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
- F24F11/88—Electrical aspects, e.g. circuits
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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
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
Abstract
The invention provides a control method, a control system, electronic equipment and a medium for air conditioner refrigerant circulation, which comprises the following steps: under the condition of abnormal circulation of the refrigerant, adjusting the shunting state of the air conditioner; acquiring the working condition of the adjusted refrigerant; adjusting the running state of the air conditioner based on the working condition of the adjusted refrigerant; the operation state comprises the following steps: a variable shunt state and a fixed shunt state; under the condition of variable shunt state, the refrigerant in the heat exchanger of the air conditioner adjusts the shunt state in real time; under the condition of fixing the shunting state, the shunting state of the refrigerant in the heat exchanger is fixed. The control method for the refrigerant circulation of the air conditioner directly adjusts the shunting state of the air conditioner under the condition of discovering the refrigerant circulation abnormity, obtains the working condition of the adjusted refrigerant, controls the running state of the air conditioner according to the adjusted working condition, switches the air conditioner between the variable shunting state and the fixed shunting state, changes the shunting state of the heat exchanger, and ensures the normal running of the air conditioner.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a control method and a control system for air conditioner refrigerant circulation, electronic equipment and a medium.
Background
Air conditioners are now essential appliances for homes and offices, and are used for a long time especially in summer and winter. The air conditioner can refrigerate in summer and heat in winter, can adjust the indoor temperature to be warm in winter and cool in summer, and provides a comfortable environment for users.
However, when the refrigerant circulation of the existing air conditioner is abnormal, whether the refrigerant leaks or not is generally judged only through the outlet air temperature, so that the wrong judgment is very easy to cause, and when the refrigerant circulation is abnormal, the existing air conditioner cannot timely adjust the air conditioner, so that the operation effect of the air conditioner is influenced.
Disclosure of Invention
The embodiment of the invention provides a control method, a control system, electronic equipment and a medium for air conditioner refrigerant circulation, and solves the problem that when a refrigerant leaks or the refrigerant circulation is abnormal, an existing air conditioner cannot be adjusted in time, and the operation effect of the air conditioner is affected.
The embodiment of the invention provides a control method for air conditioner refrigerant circulation, which comprises the following steps:
under the condition of abnormal circulation of the refrigerant, adjusting the shunting state of the air conditioner;
acquiring the working condition of the adjusted refrigerant;
adjusting the running state of the air conditioner based on the working condition of the adjusted refrigerant;
wherein the operating state comprises: a variable shunt state and a fixed shunt state; under the condition of the variable shunting state, cold media in a heat exchanger of the air conditioner adjusts the shunting state in real time; and under the condition of the fixed shunting state, the shunting state of the refrigerant in the heat exchanger is fixed.
According to an embodiment of the present invention, the step of adjusting the operating state of the air conditioner based on the working condition of the air conditioner after the adjustment of the refrigerant includes:
judging whether the circulation of the refrigerant is abnormal or not according to the working condition of the adjusted refrigerant;
if the circulation after the refrigerant adjustment is abnormal, adjusting the air conditioner to be in a variable flow distribution state;
and if the circulation after the refrigerant adjustment is normal, adjusting the air conditioner to be in a fixed flow distribution state.
According to an embodiment of the present invention, the step of determining whether the refrigerant circulation is abnormal according to the working condition of the adjusted refrigerant includes:
acquiring a first ambient temperature, a first exhaust temperature and a first coil temperature of an air conditioner;
judging whether the first exhaust temperature and the first coil pipe temperature are in a preset range or not based on the first environment temperature and the running state of the air conditioner;
if any one of the first exhaust temperature and the first coil pipe temperature is out of a preset range, determining that the circulation of the refrigerant after adjustment is abnormal;
and if the first exhaust temperature and the first coil pipe temperature are within a preset range, determining that the circulation of the refrigerant after adjustment is normal.
According to an embodiment of the present invention, the method for controlling refrigerant circulation of an air conditioner, if the adjusted circulation of the refrigerant is abnormal, further includes:
acquiring the shunting state of the indoor heat exchanger and/or the outdoor heat exchanger; the shunting state comprises the following steps: single-path shunting and multi-path shunting;
if the indoor heat exchanger and/or the outdoor heat exchanger is/are in the single-path shunt state, the indoor heat exchanger and/or the outdoor heat exchanger are/is adjusted to work for the multi-path shunt state;
and if the indoor heat exchanger and/or the outdoor heat exchanger are/is in the multi-path shunting state, adjusting the indoor heat exchanger and/or the outdoor heat exchanger to work for the single-path shunting.
According to an embodiment of the present invention, in the case of abnormal refrigerant circulation, the method for controlling refrigerant circulation of an air conditioner further includes:
acquiring a second ambient temperature, a second exhaust temperature and a second coil temperature of the air conditioner;
judging whether the second exhaust temperature and the second coil temperature are in a preset range or not based on the second ambient temperature and the running state of the air conditioner;
if any one of the second exhaust temperature and the second coil pipe temperature is out of a preset range, determining that the circulation of the refrigerant is abnormal;
and if the second exhaust temperature and the second coil pipe temperature are within a preset range, determining that the circulation of the refrigerant is normal.
According to an embodiment of the present invention, if the second discharge temperature and the second coil temperature are within a preset range, the method for controlling refrigerant circulation of an air conditioner further includes:
and under the condition that the circulation of the refrigerant is normal, the current flow dividing state of the air conditioner is kept to operate.
According to an embodiment of the present invention, in a case where a refrigerant cycle is abnormal, the step of adjusting a split state of the air conditioner includes:
under the condition of abnormal circulation of the refrigerant, adjusting the flow distribution state of the indoor heat exchanger and/or the outdoor heat exchanger; the shunting state comprises the following steps: single-path shunting and multi-path shunting;
if the indoor heat exchanger and/or the outdoor heat exchanger is/are in the single-path shunt state, the indoor heat exchanger and/or the outdoor heat exchanger are/is adjusted to work for the multi-path shunt state;
and if the indoor heat exchanger and/or the outdoor heat exchanger are/is in the multi-path shunting state, adjusting the indoor heat exchanger and/or the outdoor heat exchanger to work for the single-path shunting.
The invention also provides a control system for air conditioner refrigerant circulation, comprising:
the first adjusting module is used for adjusting the shunting state of the air conditioner under the condition of abnormal circulation of the refrigerant;
the acquisition module is used for acquiring the working condition of the adjusted refrigerant;
the second adjusting module is used for adjusting the running state of the air conditioner according to the working condition of the adjusted refrigerant; wherein the operating state comprises: a variable shunt state and a fixed shunt state; under the condition of the variable shunting state, the refrigerant in the heat exchanger of the air conditioner adjusts the shunting state in real time; and under the condition of the fixed flow distribution state, the flow distribution state of the refrigerant in the heat exchanger is fixed.
The embodiment of the invention also provides electronic equipment which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the processor realizes the control method of the air conditioner refrigerant circulation when executing the program.
An embodiment of the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the method for controlling refrigerant circulation of an air conditioner.
According to the control method, the control system, the electronic equipment and the medium for the refrigerant circulation of the air conditioner, the shunting state of the air conditioner is directly adjusted under the condition that the refrigerant circulation is abnormal, the working condition after the refrigerant is adjusted is obtained, and the running state of the air conditioner is controlled according to the adjusted working condition, so that the air conditioner is switched between the variable shunting state and the fixed shunting state, the shunting state of the heat exchanger is changed, and the normal running of the air conditioner is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a variable shunt device according to an embodiment of the invention;
FIG. 2 is a schematic structural diagram of a heat exchanger according to an embodiment of the present invention;
fig. 3 is a schematic flow chart illustrating a method for controlling refrigerant circulation of an air conditioner according to an embodiment of the present invention;
fig. 4 is a schematic flow chart illustrating a method for controlling refrigerant circulation of an air conditioner according to another embodiment of the present invention;
fig. 5 is a flowchart illustrating a method for controlling a refrigerant cycle of an air conditioner according to another embodiment of the present invention;
fig. 6 is a schematic structural diagram of a control system for air-conditioning refrigerant circulation according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present invention;
reference numerals:
1. a first shunt line; 10. a one-way valve; 2. a second shunt line; 3. a diverter valve; 31. a first communication port; 32. a second communication port; 33. a third communication port; 34. a fourth communication port; 4. a heat exchange line; 610. a first adjusting module; 620. an acquisition module; 630. a second adjustment module; 710. a processor; 720. a communication interface; 730. a memory; 740. a communication bus.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The invention provides a control method for refrigerant circulation of an air conditioner, wherein the air conditioner can be a wall-mounted air conditioner, a cabinet air conditioner, a window air conditioner, a ceiling air conditioner and the like.
As shown in fig. 1 and 2, the indoor heat exchanger or the outdoor heat exchanger of the air conditioner is provided with a variable flow dividing device, and the variable flow dividing device can also be provided in the indoor heat exchanger and the outdoor heat exchanger, and comprises: the system comprises a reversing valve 3, a first shunt pipeline 1, a second shunt pipeline 2 and at least two heat exchange pipelines 4. The first tapping line 1 is connected to the second tapping line 2 via at least two heat exchange lines 4. The first branch pipeline 1 and the second branch pipeline 2 are respectively provided with a main pipeline and a plurality of branch pipelines, and a one-way valve 10 can be arranged in the middle branch pipeline according to requirements.
The change valve 3 is a two-position four-way change valve, and is provided with a first communication port 31, a second communication port 32, a third communication port 33, and a fourth communication port 34, and the change valve 3 has a first station and a second station. The first communication port 31 is connected to the refrigerant inlet, and the third communication port 33 is connected to the refrigerant outlet.
The air conditioner has a variable split state and a fixed split state. Under the condition of variable shunt state, the refrigerant in the heat exchanger of the air conditioner adjusts the shunt state in real time. Under the condition of fixed flow distribution state, the flow distribution state of the refrigerant in the heat exchanger of the air conditioner is fixed.
The shunting state is divided into single-path shunting and multi-path shunting, and under the condition of multi-path shunting, refrigerant in the outdoor heat exchanger of the air conditioner is subjected to multi-path shunting to work. Under the condition of single-path flow division, the refrigerant in the outdoor heat exchanger of the air conditioner works in a single path. That is, the air conditioner switches between the one-way split and the multi-way split in the variable split state, and the air conditioner is fixed to operate in the one-way split or the multi-way split in the fixed split state.
When the multi-path flow is divided, the change valve 3 is in the first position, the first communication port 31 is communicated with the second communication port 32, and the third communication port 33 is communicated with the fourth communication port 34. At this time, the second communication port 32 communicates with the first branch line 1, and the fourth communication port 34 communicates with the second branch line 2. The refrigerant of the refrigerant inlet enters from the first shunting pipeline 1, is shunted by the branch pipelines of the first shunting pipeline 1, respectively enters each heat exchange pipeline 4 to exchange heat with the indoor air, enters the main pipeline of the second shunting pipeline 2 by the branch pipelines, finally passes through the fourth communicating port 34 and the third communicating port 33, and is discharged from the refrigerant outlet, so that the heat exchange of a plurality of pipelines is realized.
When the one-way flow is branched, the selector valve 3 is in the second position, the first communication port 31 communicates with the fourth communication port 34, and the third communication port 33 communicates with the second communication port 32. At this time, the second communication port 32 communicates with the second branch line 2, and the fourth communication port 34 communicates with the first branch line 1. The refrigerant at the refrigerant inlet enters from the second shunting pipeline 2, and because the check valves 10 are arranged in part of pipelines in the first shunting pipeline 1, and under the limitation of the check valves, the refrigerant can only be subjected to heat exchange and discharged from part of the heat exchange pipelines 4, and at the moment, the heat exchange pipelines can be reduced.
In this embodiment, taking two heat exchange pipelines 4 as an example, the two heat exchange pipelines are respectively a first heat exchange pipeline and a second heat exchange pipeline. First reposition of redundant personnel pipeline 1 and second reposition of redundant personnel pipeline 2 all are equipped with a trunk line and two spinal branchs way. A check valve 10 is arranged in one branch pipeline of the first shunt pipeline 1. It is assumed that the non-return valve 10 is arranged in only one of the conduits of the first tapping line 1
When the multi-path flow is divided, the change valve 3 is in the first position, the first communication port 31 is communicated with the second communication port 32, and the third communication port 33 is communicated with the fourth communication port 34. At this time, the second communication port 32 communicates with the first branch line 1, and the fourth communication port 34 communicates with the second branch line 2. The refrigerant at the refrigerant inlet enters from the first shunting pipeline 1, is shunted by the branch pipeline of the first shunting pipeline 1, respectively enters the first heat exchange pipeline and the second heat exchange pipeline to exchange heat with the indoor air, enters the main pipeline of the second shunting pipeline 2 from the branch pipeline, finally passes through the fourth communicating port 34 and the third communicating port 33, and is discharged from the refrigerant outlet, so that the simultaneous heat exchange of the two pipelines is realized.
When the one-way flow is branched, the selector valve 3 is in the second position, the first communication port 31 communicates with the fourth communication port 34, and the third communication port 33 communicates with the second communication port 32. At this time, the second communication port 32 communicates with the second branch line 2, and the fourth communication port 34 communicates with the first branch line 1. The refrigerant at the refrigerant inlet enters from the second shunting pipeline 2, and because the check valve 10 is arranged in the branch pipeline in the first shunting pipeline 1, the refrigerant can only exchange heat in the first heat exchange pipeline 4 and be discharged under the limitation of the check valve, and at the moment, the heat exchange is carried out only through one heat exchange pipeline 4.
As shown in fig. 3, the method for controlling the air conditioning refrigerant cycle includes the following steps:
step S310: and adjusting the flow dividing state of the air conditioner under the condition of abnormal circulation of the refrigerant.
After the air conditioner is started, the compressor starts to push refrigerant circulation, and after the air conditioner runs stably, the air conditioner judges whether the current refrigerant circulation is abnormal or not and judges whether the refrigerant leaks or whether the refrigerant temperature or the refrigerant pressure is abnormal or not.
If the circulation of the refrigerant is normal, the current shunting state operation of the air conditioner is kept, and the current one-way shunting or multi-way shunting state operation is kept. If the circulation of the refrigerant is abnormal, the flow distribution state of the air conditioner is adjusted, and the flow distribution state of the indoor heat exchanger and/or the outdoor heat exchanger is adjusted.
Step S320: and acquiring the working condition of the adjusted refrigerant.
After the shunting state of the air conditioner is adjusted, the working condition of the adjusted refrigerant is obtained, whether the refrigerant circulation is abnormal or not is judged, and whether the conditions of refrigerant leakage, refrigerant temperature or refrigerant pressure abnormity exist or not is judged.
Step S330: and adjusting the running state of the air conditioner based on the working condition of the adjusted refrigerant.
And judging whether the circulation of the refrigerant is abnormal or not according to the working condition of the adjusted refrigerant. If the circulation after the refrigerant adjustment is abnormal, the air conditioner is adjusted to be in a variable flow dividing state. And if the circulation after the refrigerant adjustment is normal, adjusting the air conditioner to be in a fixed flow distribution state. Under the condition of variable shunt state, the refrigerant in the heat exchanger of the air conditioner adjusts the shunt state in real time. Under the condition of fixing the shunting state, the shunting state of the refrigerant in the heat exchanger is fixed.
Specifically, if the circulation of the refrigerant after the adjustment of the flow distribution state is still abnormal, it indicates that the adjusted flow distribution state still cannot ensure the normal operation of the air conditioner, and the air conditioner is adjusted to be in the variable flow distribution state, so as to obtain the flow distribution state of the indoor heat exchanger and/or the outdoor heat exchanger. The shunting state comprises the following steps: the single-path shunting and multi-path shunting can adjust the shunting state of the heat exchanger in real time, so that the heat exchanger can be switched between single-path shunting or multi-path shunting. Three or four heat exchange pipelines can be arranged according to the requirement, so that the shunting state can also be set to be a partially shunted intermediate state, and the selection can be carried out according to the requirement in the operation process.
And if the indoor heat exchanger and/or the outdoor heat exchanger are/is in single-path shunting, the indoor heat exchanger and/or the outdoor heat exchanger are/is adjusted to work for multi-path shunting and are not fixed in a shunting state. If the air conditioner is also provided with a partial shunting intermediate device, the state of single-path shunting can be adjusted to be a partial shunting state, and partial heat exchange pipelines are utilized for heat exchange.
If the indoor heat exchanger and/or the outdoor heat exchanger are/is in multi-path shunting, the indoor heat exchanger and/or the outdoor heat exchanger are/is adjusted to be in single-path shunting to work, and the shunting state is not fixed. If the air conditioner is also provided with a partial shunting intermediate device, the state of multi-path shunting can be adjusted to a partial shunting state, and partial heat exchange pipelines are utilized for heat exchange. After the variable shunting state is adjusted, the shunting state is not fixed, the shunting state can be adjusted in real time, and the shunting condition of the air conditioner can be adjusted in time.
If the circulation after the refrigerant adjustment is normal, it is indicated that the air conditioner can normally work in the current shunting state after the refrigerant adjustment, the air conditioner does not need to continuously adjust the shunting state, the air conditioner is adjusted to be in a fixed shunting state, if the current indoor heat exchanger and/or the outdoor heat exchanger is in single-path shunting, the single-path shunting is kept to work, and if the current indoor heat exchanger and/or the outdoor heat exchanger is in multi-path shunting, the multi-path shunting is kept to work.
The control method for the refrigerant circulation of the air conditioner directly adjusts the shunting state of the air conditioner under the condition of discovering the refrigerant circulation abnormity, obtains the working condition of the adjusted refrigerant, controls the running state of the air conditioner according to the adjusted working condition, switches the air conditioner between the variable shunting state and the fixed shunting state, changes the shunting state of the heat exchanger, and ensures the normal running of the air conditioner.
As shown in fig. 4, the step of determining whether the refrigerant circulation is abnormal according to the adjusted working condition of the refrigerant includes:
step S410: a first ambient temperature, a first exhaust temperature, and a first coil temperature of the air conditioner are obtained.
In the process of working conditions adjusted according to the refrigerant, the air conditioner obtains a first ambient temperature of the air conditioner through the sensor, and obtains a first exhaust temperature of the compressor and a first coil temperature of the air conditioner coil through the sensor.
Step S420: and judging whether the first exhaust temperature and the first coil pipe temperature are in a preset range or not based on the first environment temperature and the running state of the air conditioner.
After the first environment temperature, the first exhaust temperature and the first coil temperature are obtained, whether the first exhaust temperature and the first coil temperature are within a preset range or not is judged based on the first environment temperature and the running state of the air conditioner.
For example, when the air conditioner is in a cooling state and the opening of the front valve is fixed, the preset range of the exhaust temperature and the preset range of the coil temperature are determined when cooling is determined according to the first environment temperature and the cooling state in the current environment. When the air conditioner is in a heating state and the opening degree of the front valve is fixed, determining a preset range of the exhaust temperature and a preset range of the coil temperature according to the first environment temperature in the current environment and the heating state.
Step S430: and if any one of the first exhaust temperature and the first coil pipe temperature is out of the preset range, determining that the circulation of the refrigerant after adjustment is abnormal.
And if the first exhaust temperature is out of the preset range of the exhaust temperature or the first coil pipe temperature is out of the preset range of the coil pipe temperature, determining that the circulation after the refrigerant adjustment is abnormal.
Step S440: and if the first exhaust temperature and the first coil pipe temperature are within a preset range, determining that the circulation after the refrigerant adjustment is normal.
And if the first exhaust temperature is within the preset range of the exhaust temperature and the first coil pipe temperature is within the preset range of the coil pipe temperature, determining that the circulation after the refrigerant adjustment is normal.
As shown in fig. 5, the step of adjusting the split state of the air conditioner before the step of adjusting the split state of the air conditioner when the circulation of the refrigerant is abnormal further includes:
step S510: and acquiring a second ambient temperature, a second exhaust temperature and a second coil temperature of the air conditioner.
After the air conditioner stably operates for a period of time, the air conditioner acquires the second ambient temperature of the air conditioner through the sensor, and acquires the second exhaust temperature of the compressor and the second coil temperature of the air conditioner coil through the sensor.
Step S520: and judging whether the second exhaust temperature and the second coil temperature are in a preset range or not based on the second ambient temperature and the running state of the air conditioner.
After the second environment temperature, the second exhaust temperature and the second coil temperature are obtained, whether the second exhaust temperature and the second coil temperature are within a preset range or not is judged based on the second environment temperature and the running state of the air conditioner.
For example, when the air conditioner is in a cooling state and the opening of the front valve is fixed, the preset range of the exhaust temperature and the preset range of the coil temperature are determined when cooling is determined according to the second environment temperature and the cooling state in the current environment. When the air conditioner is in a heating state and the opening of the front valve is fixed, the preset range of the exhaust temperature and the preset range of the coil temperature are determined according to the second environment temperature and the heating state in the current environment.
Step S530: and if any one of the second exhaust temperature and the second coil pipe temperature is out of the preset range, determining that the circulation of the refrigerant is abnormal.
And if the second exhaust temperature is out of the preset range of the exhaust temperature or the second coil temperature is out of the preset range of the coil temperature, determining that the circulation after the refrigerant adjustment is abnormal. And adjusting the flow dividing state of the air conditioner under the condition of abnormal circulation of the refrigerant.
Step S540: and if the second exhaust temperature and the second coil pipe temperature are within the preset range, determining that the circulation of the refrigerant is normal.
And if the second exhaust temperature is within the preset range of the exhaust temperature and the second coil temperature is within the preset range of the coil temperature, determining that the circulation after the refrigerant adjustment is normal. And under the condition that the circulation of the refrigerant is normal, the current flow dividing state of the air conditioner is kept to operate.
The following describes a control system for air conditioning refrigerant circulation according to an embodiment of the present invention, and the control system for air conditioning refrigerant circulation described below and the control method described above may be referred to in correspondence.
As shown in fig. 6, the control system for air conditioning refrigerant circulation includes: a first adjustment module 610, an acquisition module 620, and a second adjustment module 630.
The first adjusting module 610 is configured to adjust a flow splitting state of the air conditioner when the circulation of the refrigerant is abnormal; the obtaining module 620 is configured to obtain a working condition of the adjusted refrigerant; the second adjusting module 630 is configured to adjust an operating state of the air conditioner according to the adjusted working condition of the refrigerant; wherein, the running state includes: a variable shunt state and a fixed shunt state; under the condition of variable shunt state, cold media in a heat exchanger of the air conditioner adjusts the shunt state in real time; under the condition of fixed flow dividing state, the flow dividing state of the refrigerant in the heat exchanger is fixed.
Fig. 7 illustrates a physical structure diagram of an electronic device, and as shown in fig. 7, the electronic device may include: a processor (processor)710, a communication Interface (Communications Interface)720, a memory (memory)730, and a communication bus 740, wherein the processor 710, the communication Interface 720, and the memory 730 communicate with each other via the communication bus 740. Processor 710 may call logic instructions in memory 730 to perform the control method comprising: under the condition of abnormal circulation of the refrigerant, adjusting the shunting state of the air conditioner; acquiring the working condition of the adjusted refrigerant; adjusting the running state of the air conditioner based on the working condition of the adjusted refrigerant; wherein the operating state comprises: a variable shunt state and a fixed shunt state; under the condition of the variable shunting state, cold media in a heat exchanger of the air conditioner adjusts the shunting state in real time; and under the condition of the fixed flow distribution state, the flow distribution state of the refrigerant in the heat exchanger is fixed.
It should be noted that, when being implemented specifically, the electronic device in this embodiment may be a server, a PC, or other devices, as long as the structure includes the processor 710, the communication interface 720, the memory 730, and the communication bus 740 shown in fig. 7, where the processor 710, the communication interface 720, and the memory 730 complete mutual communication through the communication bus 740, and the processor 710 may call the logic instructions in the memory 730 to execute the above method. The embodiment does not limit the specific implementation form of the electronic device.
In addition, the logic instructions in the memory 730 can be implemented in the form of software functional units and stored in a computer readable storage medium when the software functional units are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing 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 according to the embodiments of the present invention. And the aforementioned storage medium includes: 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.
Further, an embodiment of the present invention discloses a computer program product, the computer program product includes a computer program stored on a non-transitory computer-readable storage medium, the computer program includes program instructions, when the program instructions are executed by a computer, the computer can execute the control method provided by the above method embodiments, the control method includes: under the condition of abnormal circulation of the refrigerant, adjusting the shunting state of the air conditioner; acquiring the working condition of the adjusted refrigerant; adjusting the running state of the air conditioner based on the working condition of the adjusted refrigerant; wherein the operating state comprises: a variable shunt state and a fixed shunt state; under the condition of the variable shunting state, the refrigerant in the heat exchanger of the air conditioner adjusts the shunting state in real time; and under the condition of the fixed flow distribution state, the flow distribution state of the refrigerant in the heat exchanger is fixed.
In another aspect, an embodiment of the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program is implemented to perform the control method provided in the foregoing embodiments when executed by a processor, where the control method includes: under the condition of abnormal circulation of the refrigerant, adjusting the shunting state of the air conditioner; acquiring the working condition of the adjusted refrigerant; adjusting the running state of the air conditioner based on the working condition of the adjusted refrigerant; wherein the operating state comprises: a variable shunt state and a fixed shunt state; under the condition of the variable shunting state, the refrigerant in the heat exchanger of the air conditioner adjusts the shunting state in real time; and under the condition of the fixed flow distribution state, the flow distribution state of the refrigerant in the heat exchanger is fixed.
The above-described embodiments of the apparatus are merely illustrative, and 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 modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. Based on the understanding, the above technical solutions substantially or otherwise contributing to the prior art may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the various embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
The above embodiments are merely illustrative of the present invention and are not to be construed as limiting the invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and the technical solution of the present invention is covered by the claims of the present invention.
Claims (10)
1. A control method for air conditioner refrigerant circulation is characterized by comprising the following steps:
under the condition of abnormal circulation of the refrigerant, adjusting the shunting state of the air conditioner;
acquiring the working condition of the adjusted refrigerant;
adjusting the running state of the air conditioner based on the working condition of the adjusted refrigerant;
wherein the operating state comprises: a variable shunt state and a fixed shunt state; under the condition of the variable shunting state, the refrigerant in the heat exchanger of the air conditioner adjusts the shunting state in real time; and under the condition of the fixed flow distribution state, the flow distribution state of the refrigerant in the heat exchanger is fixed.
2. The method of claim 1, wherein the step of adjusting the operating state of the air conditioner based on the adjusted operating condition of the refrigerant comprises:
judging whether the circulation of the refrigerant is abnormal or not according to the working condition of the adjusted refrigerant;
if the circulation after the refrigerant adjustment is abnormal, adjusting the air conditioner to be in a variable shunting state;
and if the circulation after the refrigerant adjustment is normal, adjusting the air conditioner to be in a fixed flow distribution state.
3. The method of claim 2, wherein the step of determining whether the refrigerant circulation is abnormal according to the adjusted operating condition of the refrigerant comprises:
acquiring a first ambient temperature, a first exhaust temperature and a first coil temperature of an air conditioner;
judging whether the first exhaust temperature and the first coil pipe temperature are in a preset range or not based on the first environment temperature and the running state of the air conditioner;
if any one of the first exhaust temperature and the first coil pipe temperature is out of a preset range, determining that the circulation of the refrigerant after adjustment is abnormal;
and if the first exhaust temperature and the first coil pipe temperature are within a preset range, determining that the circulation after the refrigerant adjustment is normal.
4. The method for controlling refrigerant circulation of an air conditioner according to claim 2, wherein the step of adjusting the air conditioner to the variable split state if the adjusted refrigerant circulation is abnormal further comprises:
acquiring the shunting state of the indoor heat exchanger and/or the outdoor heat exchanger; the shunting state comprises the following steps: single-path shunting and multi-path shunting;
if the indoor heat exchanger and/or the outdoor heat exchanger is/are in the single-path shunt, the indoor heat exchanger and/or the outdoor heat exchanger are/is adjusted to work for the multi-path shunt;
and if the indoor heat exchanger and/or the outdoor heat exchanger are/is in the multi-path shunting state, adjusting the indoor heat exchanger and/or the outdoor heat exchanger to work for the single-path shunting.
5. The method for controlling a refrigerant cycle of an air conditioner according to any one of claims 1 to 4, wherein the step of adjusting a split state of the air conditioner in case of an abnormal refrigerant cycle further comprises:
acquiring a second ambient temperature, a second exhaust temperature and a second coil temperature of the air conditioner;
judging whether the second exhaust temperature and the second coil temperature are in a preset range or not based on the second ambient temperature and the running state of the air conditioner;
if any one of the second exhaust temperature and the second coil pipe temperature is out of a preset range, determining that the circulation of a refrigerant is abnormal;
and if the second exhaust temperature and the second coil pipe temperature are within a preset range, determining that the circulation of the refrigerant is normal.
6. The method of claim 5, wherein if the second discharge temperature and the second coil temperature are within a predetermined range, the step of determining that the refrigerant circulation is normal further comprises:
and under the condition that the circulation of the refrigerant is normal, the current flow dividing state of the air conditioner is kept to operate.
7. The method for controlling a refrigerant cycle of an air conditioner according to any one of claims 1 to 4, wherein the step of adjusting a split state of the air conditioner in case of an abnormal refrigerant cycle comprises:
under the condition of abnormal circulation of the refrigerant, adjusting the flow distribution state of the indoor heat exchanger and/or the outdoor heat exchanger; the shunting state comprises: single-path shunting and multi-path shunting;
if the indoor heat exchanger and/or the outdoor heat exchanger is/are in the single-path shunt, the indoor heat exchanger and/or the outdoor heat exchanger are/is adjusted to work for the multi-path shunt;
and if the indoor heat exchanger and/or the outdoor heat exchanger are/is in the multi-path shunting state, adjusting the indoor heat exchanger and/or the outdoor heat exchanger to work for the single-path shunting.
8. A control system for air conditioner refrigerant circulation is characterized by comprising:
the first adjusting module is used for adjusting the shunting state of the air conditioner under the condition of abnormal circulation of the refrigerant;
the acquisition module is used for acquiring the working condition of the adjusted refrigerant;
the second adjusting module is used for adjusting the running state of the air conditioner according to the working condition of the adjusted refrigerant; wherein the operating state comprises: a variable shunt state and a fixed shunt state; under the condition of the variable shunting state, the refrigerant in the heat exchanger of the air conditioner adjusts the shunting state in real time; and under the condition of the fixed shunting state, the shunting state of the refrigerant in the heat exchanger is fixed.
9. An electronic device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the control system for air conditioning refrigerant circulation according to any one of claims 1 to 7 when executing the program.
10. A non-transitory computer readable storage medium, having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the control system for the refrigerant cycle of the air conditioner according to any one of claims 1 to 7.
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