CN117515777A - Condensate water prevention control method and device and air conditioning unit - Google Patents
Condensate water prevention control method and device and air conditioning unit Download PDFInfo
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- CN117515777A CN117515777A CN202410008547.XA CN202410008547A CN117515777A CN 117515777 A CN117515777 A CN 117515777A CN 202410008547 A CN202410008547 A CN 202410008547A CN 117515777 A CN117515777 A CN 117515777A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 63
- 238000004378 air conditioning Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 42
- 230000002265 prevention Effects 0.000 title abstract description 13
- 238000013507 mapping Methods 0.000 claims abstract description 7
- 239000003507 refrigerant Substances 0.000 claims description 15
- 238000001514 detection method Methods 0.000 claims description 10
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 5
- 230000014509 gene expression Effects 0.000 claims description 4
- 238000012360 testing method Methods 0.000 claims description 4
- 238000004590 computer program Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 5
- 238000004364 calculation method Methods 0.000 description 8
- 238000009833 condensation Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000006467 substitution reaction 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
- 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
- F24F11/41—Defrosting; Preventing freezing
- F24F11/43—Defrosting; Preventing freezing of indoor units
-
- 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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
-
- 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
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
-
- 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
-
- 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
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Fluid Mechanics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a condensate water prevention control method and device and an air conditioning unit. Wherein the method comprises the following steps: after the air conditioning unit is started, acquiring the current indoor humidity, the indoor environment temperature and the outdoor environment temperature; determining the minimum refrigerating capacity meeting constraint conditions according to the indoor humidity, the indoor environment temperature and the outdoor environment temperature; the functional relation between the minimum refrigerating capacity and the indoor humidity, the indoor environment temperature and the outdoor environment temperature is preset; determining an operation parameter combination of an air conditioning unit according to the minimum refrigerating capacity, and controlling the air conditioning unit to operate for a preset time period according to the operation parameter combination; and presetting a mapping relation between the minimum refrigerating capacity and the operation parameter combination. By the method and the device, condensed water is prevented from being generated in the running process of the air conditioner, and user experience is improved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a condensate water prevention control method and device and an air conditioner unit.
Background
Along with the popularization of air conditioners, the usage amount of the air conditioners is gradually increased, the application environments are also more and more diversified, and when some air conditioners are just started up and started up in a humid environment, condensed water is easy to generate when the evaporator is just put into operation due to good refrigeration effect, and the condensed water possibly flows out along with the air blown out by the air conditioners, so that the user experience is poor.
Aiming at the problem that in the prior art, when an air conditioner starts to operate, an evaporator can generate condensed water, the condensed water easily flows out along with wind blown out by the air conditioner, so that user experience is poor, no effective solution is proposed at present.
Disclosure of Invention
The embodiment of the invention provides a condensate water prevention control method and device and an air conditioner unit, which are used for solving the problem that condensate water is easily discharged along with wind blown out by an air conditioner when the air conditioner starts to operate in the prior art, so that user experience is poor.
In order to solve the technical problems, the invention provides a condensate water prevention control method, which comprises the following steps:
after the air conditioning unit is started, acquiring the current indoor humidity, the indoor environment temperature and the outdoor environment temperature;
determining the minimum refrigerating capacity meeting constraint conditions according to the indoor humidity, the indoor environment temperature and the outdoor environment temperature; the functional relation between the minimum refrigerating capacity and the indoor humidity, the indoor environment temperature and the outdoor environment temperature is preset;
determining an operation parameter combination of an air conditioning unit according to the minimum refrigerating capacity, and controlling the air conditioning unit to operate for a preset time period according to the operation parameter combination; and presetting a mapping relation between the minimum refrigerating capacity and the operation parameter combination.
Further, presetting a functional relation between the minimum refrigerating capacity and the indoor humidity, the indoor environment temperature and the outdoor environment temperature, wherein the functional relation comprises the following steps:
determining a function model with unknown fitting coefficients;
testing the minimum refrigerating capacity under different indoor humidity, different indoor environment temperature and different outdoor environment temperature when the constraint condition is met;
establishing a plurality of relational expressions of indoor humidity, indoor environment temperature, outdoor environment temperature and minimum refrigerating capacity according to the minimum refrigerating capacity;
and calculating each unknown fitting coefficient according to the relation, so as to obtain the functional relation of the minimum refrigerating capacity and the indoor humidity, the indoor environment temperature and the outdoor environment temperature.
Further, the functional relationship is:
；
wherein T is the temperature control starting time, N is the preset time, RH is the indoor humidity, and Q Refrigerating capacity For the minimum refrigerating capacity, tin is the indoor environment temperature, tout is the outdoor environment temperature, a is a first fitting coefficient, b is a second fitting coefficient, c is a third fitting coefficient, and θ 0 For the fourth fitting coefficient theta 1 For the fifth fitting coefficient, θ 2 For the sixth fitting coefficient, θ 3 For the seventh fitting coefficient, θ 4 And the eighth fitting coefficient.
Further, the constraint condition is:
the difference between the indoor environment temperature and the evaporator temperature is larger than a preset value, and the environment humidity is smaller than a preset humidity threshold.
Further, the evaporator temperature is an average value of the refrigerant inlet pipe temperature of the evaporator and the refrigerant outlet pipe temperature of the evaporator.
Further, the operation parameter combination at least comprises the following parameters:
wind outlet speed, wind shield angle, compressor frequency and electronic expansion valve opening.
The invention also provides a condensed water prevention control device, which comprises:
the detection module is used for acquiring the current indoor humidity, the indoor environment temperature and the outdoor environment temperature after the air conditioning unit is started;
the calculating module is used for determining the minimum refrigerating capacity meeting constraint conditions according to the indoor humidity, the indoor environment temperature and the outdoor environment temperature; the functional relation between the minimum refrigerating capacity and the indoor humidity, the indoor environment temperature and the outdoor environment temperature is preset;
the control module is used for determining the operation parameter combination of the air conditioning unit according to the minimum refrigerating capacity and controlling the air conditioning unit to operate for a preset time period according to the operation parameter combination; and presetting a mapping relation between the minimum refrigerating capacity and the operation parameter combination.
The invention also provides an air conditioning unit which comprises the condensate water prevention control device and applies the condensate water prevention control method.
The present invention also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the above-described condensate water control method.
The present invention also provides an electronic device including:
one or more processors;
and a storage device for storing one or more programs which, when executed by the one or more processors, cause the one or more processors to implement the above-described condensate water control method.
By applying the technical scheme of the invention, the minimum refrigerating capacity which ensures no condensed water is determined according to the indoor humidity, the indoor environment temperature and the outdoor environment temperature, the air conditioning unit is controlled to operate according to the operation parameter combination corresponding to the minimum refrigerating capacity, the minimum refrigerating capacity is realized, the condensed water is not generated in the operation process of the air conditioner, and the user experience is improved.
Drawings
FIG. 1 is a flow chart of a condensate water control method according to an embodiment of the present invention;
FIG. 2 is a schematic diagram showing a temperature change of a refrigerant in an evaporator according to an embodiment of the invention;
FIG. 3 is a flowchart of a condensate water control method according to another embodiment of the present invention;
FIG. 4 is a graph showing a trend of temperature and humidity changes according to an embodiment of the present invention;
fig. 5 is a block diagram illustrating a structure of a condensed water preventing control apparatus according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, the "plurality" generally includes at least two.
It should be understood that the term "and/or" as used herein is merely one relationship describing the association of the associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
It should be understood that although the terms first, second, third, etc. may be used in embodiments of the present invention to describe the fitting coefficients, these fitting coefficients should not be limited to these terms. These terms are only used to distinguish between different fitting coefficients. For example, a first fitting coefficient may also be referred to as a second fitting coefficient, and similarly, a second fitting coefficient may also be referred to as a first fitting coefficient, without departing from the scope of embodiments of the present invention.
The words "if", as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrase "if determined" or "if detected (stated condition or event)" may be interpreted as "when determined" or "in response to determination" or "when detected (stated condition or event)" or "in response to detection (stated condition or event), depending on the context.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a product or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such product or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a commodity or device comprising such element.
Alternative embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example 1
With the popularization of air conditioners, the application environments of the air conditioners are more and more diversified, and when some air conditioners are just started up in a humid environment, condensed water is easy to generate when an evaporator is just put into operation due to good refrigerating effect, and the condensed water possibly flows out along with the wind blown out by the air conditioners, so that user experience is poor.
In view of the above technical problems in the prior art, this embodiment provides a condensate water prevention control method, and fig. 1 is a flowchart of a condensate water prevention control method according to an embodiment of the present invention, as shown in fig. 1, where the method includes:
s101, after the air conditioning unit is started, acquiring current indoor humidity, indoor environment temperature and outdoor environment temperature.
During implementation, the humidity detection device can be placed at the air return opening, and the default humidity detection device is in an enabled state after the air conditioning unit is started, so that humidity data can be collected in real time.
One temperature sensor is arranged outdoors, the outdoor environment temperature is obtained, the other temperature sensor is arranged indoors, and the indoor environment temperature is detected.
S102, determining the minimum refrigerating capacity meeting constraint conditions according to indoor humidity, indoor environment temperature and outdoor environment temperature; wherein, the function relation of the minimum refrigerating capacity, the indoor humidity, the indoor environment temperature and the outdoor environment temperature is preset.
The above constraint is to ensure that no condensed water is present in the evaporator. And when the indoor humidity, the indoor environment temperature and the outdoor environment temperature are obtained, calculating the minimum refrigerating capacity of condensate water under the current indoor humidity indoor environment temperature and outdoor environment temperature according to a functional relation, and controlling the operation of an air conditioning unit to obtain the minimum refrigerating capacity.
S103, determining an operation parameter combination of the air conditioning unit according to the minimum refrigerating capacity, and controlling the air conditioning unit to operate for a preset time period according to the operation parameter combination; wherein, the mapping relation of the combination of the minimum refrigerating capacity and the operation parameters is preset.
The method can be determined through experiments in advance, corresponding operation parameter combinations are carried out under different minimum refrigerating capacities, after the minimum refrigerating capacity which ensures that condensed water does not appear is determined, the parameter combination corresponding to the minimum refrigerating capacity is called, and then the air conditioning unit is controlled to operate according to the parameter combination, so that the minimum refrigerating capacity requirement can be met.
According to the condensate water prevention control method, the minimum refrigerating capacity which is guaranteed to be free of condensate water is determined according to the current indoor humidity, the current indoor environment temperature and the current outdoor environment temperature, the air conditioning unit is controlled to operate according to the operation parameter combination corresponding to the minimum refrigerating capacity, the minimum refrigerating capacity is achieved, the condensate water is guaranteed to be free of condensate water in the operation process of the air conditioner, and user experience is improved.
The minimum refrigerating capacity of the evaporator without condensed water can be obtained through experiments in advance under different indoor humidity, indoor environment temperature and outdoor environment temperature, and then stored in a control system of an air conditioning unit, after the indoor humidity, the indoor environment temperature and the outdoor environment temperature are obtained, the functional relationship is adjusted, and the minimum refrigerating capacity is calculated, so that the functional relationship between the minimum refrigerating capacity and the indoor humidity, the indoor environment temperature and the outdoor environment temperature is preset, and the method comprises the following steps: determining a function model with unknown fitting coefficients; testing the minimum refrigerating capacity under different indoor humidity, different indoor environment temperature and different outdoor environment temperature when the constraint condition is met; establishing a plurality of relational expressions of indoor humidity, indoor environment temperature, outdoor environment temperature and minimum refrigerating capacity according to the minimum refrigerating capacity; and calculating each unknown fitting coefficient according to the relation, so as to obtain the functional relation of the minimum refrigerating capacity and the indoor humidity, the indoor environment temperature and the outdoor environment temperature.
The functional relationship is as follows:
；
wherein T is the temperature control starting time, N is the preset time, RH is the indoor humidity, and Q Refrigerating capacity For the minimum refrigerating capacity, tin is the indoor environment temperature, tout is the outdoor environment temperature, a is a first fitting coefficient, b is a second fitting coefficient, c is a third fitting coefficient, and θ 0 For the fourth fitting coefficient theta 1 For the fifth fitting coefficient, θ 2 For the sixth fitting coefficient, θ 3 For the seventh fitting coefficient, θ 4 And the eighth fitting coefficient.
Condensed water is easy to generate when the temperature difference between the indoor environment temperature and the evaporator temperature is 10-15 ℃, and the specific temperature difference for generating the condensed water is related to humidity, and researches show that the condensed water is difficult to generate when the humidity is below 60%, so that the constraint conditions are as follows: the difference between the indoor ambient temperature and the evaporator temperature (i.e. the difference between the internal and external evaporator temperatures) is greater than a preset value, e.g. 15 c, it is also possible to set a higher value, e.g. 16 c or 16 c, in order to ensure that no condensed water is present, and the ambient humidity is less than a preset humidity threshold, e.g. 60%.
Fig. 2 is a schematic diagram of a change in refrigerant temperature of an evaporator according to an embodiment of the present invention, as shown in fig. 2, the refrigerant inlet pipe temperature and the refrigerant outlet pipe temperature of the evaporator are different, and if an accurate evaporator temperature is to be determined, a specific temperature value is required, and the internal temperature of the evaporator is difficult to measure, so that the evaporator temperature is an average value of the refrigerant inlet pipe temperature and the refrigerant outlet pipe temperature of the evaporator.
When the air conditioner starts to operate, the parameters affecting the minimum refrigerating capacity mainly comprise the wind outlet speed, the wind guard angle, the compressor frequency and the electronic expansion valve opening, so that the operation parameter combination at least comprises the following parameters: wind outlet speed, wind shield angle, compressor frequency and electronic expansion valve opening.
Example 2
The present embodiment provides another condensate water control method, and fig. 3 is a flowchart of the condensate water control method according to another embodiment of the present invention, as shown in fig. 3, and the method includes:
s1, after the air conditioning unit starts to operate, recording temperature control starting time T.
S2, acquiring indoor humidity, indoor environment temperature and outdoor environment temperature.
The humidity detection device is placed at the air return port and is in an enabled state by default, and humidity data are collected in real time; two temperature sensors are respectively arranged indoors and outdoors, temperature data are collected in real time, and the data are transmitted to a calculation module.
S3, substituting the acquired indoor humidity, the indoor environment temperature and the outdoor environment temperature into a calculation model to calculate the minimum refrigerating capacity.
And the indoor humidity, the indoor environment temperature and the outdoor environment temperature are substituted into a calculation model through a calculation module, and the minimum refrigerating capacity is calculated.
The calculation model is as follows:
；
wherein T is the temperature control starting time, N is the preset time, RH is the indoor humidity, and Q Minimum refrigerating capacity For the minimum refrigerating capacity, tin is the indoor environment temperature, tout is the outdoor environment temperature, a is a first fitting coefficient, b is a second fitting coefficient, c is a third fitting coefficient, and θ 0 For the fourth fitting coefficient theta 1 For the fifth fitting coefficient, θ 2 For the sixth fitting coefficient, θ 3 For the seventh fitting coefficient, θ 4 And the eighth fitting coefficient.
S4, determining the operation parameter combination of the air conditioner according to the minimum refrigerating capacity.
S5, adjusting the wind speed, the frequency of the compressor, the wind shield and the opening of the electronic expansion valve according to the parameter values in the operation parameter combination, and controlling the operation of the air conditioning unit for a preset period of time.
And immediately after the air conditioner is started, performing model processing for preventing condensed water from blowing out in a preset time length N. For example, when the humidity reaches 70%, the internal environment temperature is 31 ℃, in order to control the temperature difference of the evaporator above 15 ℃ and according to the comfort of the external environment temperature, the evaporator temperature should be controlled at about 14.3 ℃, the minimum refrigerating capacity is calculated to be 2400W, and the operation of the air conditioner is controlled by the minimum refrigerating capacity, which relates to the adjustment of parameters such as wind speed, wind shield, compressor frequency, electronic expansion valve opening, and the like, which is an optimal air conditioner operation model, condensed water will not appear, and simultaneously, the humidity is controlled to about 60% along with the decrease of the ambient environment temperature, and after the preset period of time N, the air conditioner continues to operate according to the conditions of the internal environment temperature and the external environment temperature, indoor refrigeration is performed according to the indoor environment temperature, and the indoor temperature is adjusted to be in a better state.
The data of the calculation model is derived from experimental data, and the model is generated according to parameters such as indoor humidity, indoor environment temperature, outdoor environment temperature, minimum refrigerating capacity and the like.
And controlling parameters such as wind speed, wind shield, compressor frequency, electronic expansion valve opening and the like by the air conditioning unit according to the minimum refrigerating capacity calculated by the calculation model.
The minimum refrigerating capacity of the air conditioning unit of this embodiment: 2200W-2600W (1P), 3200W-3600W (1.5P), 4500W-5100W (2P). Humidity generally ranges: 20% -80%. The normal indoor humidity is 40% -60%, the summer is 40% -80%, the winter is 30% -60%, and condensed water is generated when the temperature difference is 10-15 ℃ and is related to the humidity. The condensed water is difficult to generate when the humidity is below 60 percent.
Fig. 4 is a trend chart of temperature and humidity variation according to an embodiment of the present invention, and the indoor humidity is reduced to below 60% by the steps shown in fig. 4, where the difference between the indoor ambient temperature and the evaporator temperature is greater than 15 ℃. The model operates the logic to control the temperature difference between the indoor environment temperature and the evaporator temperature to be more than 15 ℃ and reduce the indoor humidity to be less than 60%, and the parameters of wind speed, wind shield, compressor frequency and electronic expansion valve opening are adjusted. The indoor humidity of the air conditioner is reduced to below 60% under the condition that the temperature difference of the evaporator is more than 15 ℃, and the air conditioner is operated to an optimal working state.
Example 3
The present embodiment provides a condensation preventing control device, fig. 5 is a block diagram of a condensation preventing control device according to an embodiment of the present invention, as shown in fig. 5, the device includes:
the detection module 10 is configured to obtain a current indoor humidity, an indoor environment temperature, and an outdoor environment temperature after the air conditioning unit is turned on.
During implementation, the humidity detection device can be placed at the air return opening, and the default humidity detection device is in an enabled state after the air conditioning unit is started, so that humidity data can be collected in real time.
One temperature sensor is arranged outdoors, the outdoor environment temperature is obtained, the other temperature sensor is arranged indoors, and the indoor environment temperature is detected.
A calculating module 20, configured to determine a minimum refrigerating capacity satisfying a constraint condition according to the indoor humidity, the indoor environment temperature, and the outdoor environment temperature; and presetting a functional relation between the minimum refrigerating capacity and the indoor humidity, the indoor environment temperature and the outdoor environment temperature.
The above constraint is to ensure that no condensed water is present in the evaporator. And when the indoor humidity, the indoor environment temperature and the outdoor environment temperature are obtained, calculating the minimum refrigerating capacity of condensate water under the current indoor humidity indoor environment temperature and outdoor environment temperature according to a functional relation, and controlling the operation of an air conditioning unit to obtain the minimum refrigerating capacity.
The control module 30 is configured to determine an operation parameter combination of an air conditioning unit according to the minimum cooling capacity, and control the air conditioning unit to operate for a preset period of time according to the operation parameter combination; and presetting a mapping relation between the minimum refrigerating capacity and the operation parameter combination.
The method can be determined through experiments in advance, corresponding operation parameter combinations are carried out under different minimum refrigerating capacities, after the minimum refrigerating capacity which ensures that condensed water does not appear is determined, the parameter combination corresponding to the minimum refrigerating capacity is called, and then the air conditioning unit is controlled to operate according to the parameter combination, so that the minimum refrigerating capacity requirement can be met.
According to the condensate water prevention control device, the minimum refrigerating capacity which is guaranteed not to occur is determined through the computing module 20 according to the indoor humidity, the indoor environment temperature and the outdoor environment temperature, the air conditioning unit is controlled to operate according to the operation parameter combination corresponding to the minimum refrigerating capacity through the control module 30, the minimum refrigerating capacity is achieved, the fact that the condensate water does not occur in the air conditioning operation process can be guaranteed, and user experience is improved.
The minimum refrigerating capacity of the evaporator, which is ensured not to generate condensed water under different indoor humidity, indoor environment temperature and outdoor environment temperature, can be obtained through experiments in advance, and then stored in a control system of an air conditioning unit, after the indoor humidity, the indoor environment temperature and the outdoor environment temperature are obtained, the functional relationship is called, and the minimum refrigerating capacity is calculated, so that the calculating module 20 is specifically configured to: determining a function model with unknown fitting coefficients; testing the minimum refrigerating capacity under different indoor humidity, different indoor environment temperature and different outdoor environment temperature when the constraint condition is met; establishing a plurality of relational expressions of indoor humidity, indoor environment temperature, outdoor environment temperature and minimum refrigerating capacity according to the minimum refrigerating capacity; and calculating each unknown fitting coefficient according to the relation, so as to obtain the functional relation of the minimum refrigerating capacity and the indoor humidity, the indoor environment temperature and the outdoor environment temperature.
The functional relationship is as follows:
；
wherein T is the temperature control starting time, N is the preset time, RH is the indoor humidity, and Q Refrigerating capacity For the minimum refrigerating capacity, tin is the indoor environment temperature, tout is the outdoor environment temperature, a is a first fitting coefficient, b is a second fitting coefficient, c is a third fitting coefficient, and θ 0 For the fourth fitting coefficient theta 1 For the fifth fitting coefficient, θ 2 For the sixth fitting coefficient, θ 3 For the seventh fitting coefficient, θ 4 And the eighth fitting coefficient.
Condensed water is easy to generate when the temperature difference between the indoor environment temperature and the evaporator temperature is 10-15 ℃, and the specific temperature difference for generating the condensed water is related to humidity, and researches show that the condensed water is difficult to generate when the humidity is below 60%, so that the constraint conditions are as follows: the difference between the indoor ambient temperature and the evaporator temperature is greater than a preset value, e.g. 15 ℃, it is also possible to set a higher value, e.g. 16 ℃ or 16 ℃, and the ambient humidity is less than a preset humidity threshold, e.g. 60%, in order to ensure that no condensed water is present.
Fig. 2 is a schematic diagram of a change in refrigerant temperature of an evaporator according to an embodiment of the present invention, as shown in fig. 2, the refrigerant inlet pipe temperature and the refrigerant outlet pipe temperature of the evaporator are different, and if an accurate evaporator temperature is to be determined, a specific temperature value is required, and the internal temperature of the evaporator is difficult to measure, so that the evaporator temperature is an average value of the refrigerant inlet pipe temperature and the refrigerant outlet pipe temperature of the evaporator.
When the air conditioner starts to operate, the parameters affecting the minimum refrigerating capacity mainly comprise the wind outlet speed, the wind guard angle, the compressor frequency and the electronic expansion valve opening, so that the operation parameter combination at least comprises the following parameters: wind outlet speed, wind shield angle, compressor frequency and electronic expansion valve opening.
Example 4
The embodiment provides an air conditioning unit, which comprises the anti-condensation water control device and is applied to the anti-condensation water control method, wherein the anti-condensation water control method is used for ensuring that no condensation water appears in the running process of an air conditioner and improving user experience.
Example 5
The present embodiment provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the above-described condensate water control method.
Example 6
The present embodiment provides an electronic device including: one or more processors; and a storage means for storing one or more programs that, when executed by the one or more processors, cause the one or more processors to implement the condensate water control method of the above embodiment.
The electronic device of the embodiments of the present invention exists in a variety of forms including, but not limited to:
(1) Mobile communication devices, which are characterized by mobile communication functionality and are aimed at providing voice, data communication. Such terminals include: smart phones (e.g., iPhone), multimedia phones, functional phones, and low-end phones, etc.
(2) Ultra mobile personal computer equipment, which belongs to the category of personal computers, has the functions of calculation and processing and generally has the characteristic of mobile internet surfing. Such terminals include: PDA, MID, and UMPC devices, etc., such as iPad.
(3) Portable entertainment devices such devices can display and play multimedia content. The device comprises: audio, video players (e.g., iPod), palm game consoles, electronic books, and smart toys and portable car navigation devices.
(4) And (3) a server: the configuration of the server includes a processor, a hard disk, a memory, a device bus, and the like, and the server is similar to a general computer architecture, but is required to provide highly reliable services, and thus has high requirements in terms of processing capacity, stability, reliability, security, scalability, manageability, and the like.
(5) Other electronic devices with data interaction function, such as televisions, vehicle-mounted large screens and the like.
The apparatus embodiments described above are merely illustrative, wherein the modules illustrated as separate components may or may not be physically separate, and the components shown as modules may or may not be physical modules, i.e., may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the 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 scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. A condensate water control method, the method comprising:
after the air conditioning unit is started, acquiring the current indoor humidity, the indoor environment temperature and the outdoor environment temperature;
determining the minimum refrigerating capacity meeting constraint conditions according to the indoor humidity, the indoor environment temperature and the outdoor environment temperature; the functional relation between the minimum refrigerating capacity and the indoor humidity, the indoor environment temperature and the outdoor environment temperature is preset; the constraint conditions are as follows: the difference value between the indoor environment temperature and the evaporator temperature is larger than a preset value, and the environment humidity is smaller than a preset humidity threshold;
determining an operation parameter combination of an air conditioning unit according to the minimum refrigerating capacity, and controlling the air conditioning unit to operate for a preset time period according to the operation parameter combination; and presetting a mapping relation between the minimum refrigerating capacity and the operation parameter combination.
2. The method of claim 1, wherein the presetting of the minimum cooling capacity as a function of the indoor humidity, the indoor ambient temperature, the outdoor ambient temperature comprises:
determining a function model with unknown fitting coefficients;
testing the minimum refrigerating capacity under different indoor humidity, different indoor environment temperature and different outdoor environment temperature when the constraint condition is met;
establishing a plurality of relational expressions of indoor humidity, indoor environment temperature, outdoor environment temperature and minimum refrigerating capacity according to the minimum refrigerating capacity;
and calculating each unknown fitting coefficient according to the relation, so as to obtain the functional relation of the minimum refrigerating capacity and the indoor humidity, the indoor environment temperature and the outdoor environment temperature.
3. The method of claim 2, wherein the functional relationship is:
；
wherein T is the temperature control starting time, N is the preset time, RH is the indoor humidity, and Q Refrigerating capacity For the minimum refrigerating capacity, tin is the indoor environment temperature, tout is the outdoor environment temperature, a is a first fitting coefficient, b is a second fitting coefficient, c is a third fitting coefficient, and θ 0 For the fourth fitting coefficient theta 1 For the fifth fitting coefficient, θ 2 For the sixth fitting coefficient, θ 3 For the seventh fitting coefficient, θ 4 And the eighth fitting coefficient.
4. The method of claim 3, wherein the evaporator temperature is an average of a refrigerant inlet tube temperature of the evaporator and a refrigerant outlet tube temperature of the evaporator.
5. The method according to claim 1, characterized in that the operating parameter combination comprises at least the following parameters:
wind outlet speed, wind shield angle, compressor frequency and electronic expansion valve opening.
6. A condensate water control device, the device comprising:
the detection module is used for acquiring the current indoor humidity, the indoor environment temperature and the outdoor environment temperature after the air conditioning unit is started;
the calculating module is used for determining the minimum refrigerating capacity meeting constraint conditions according to the indoor humidity, the indoor environment temperature and the outdoor environment temperature; the functional relation between the minimum refrigerating capacity and the indoor humidity, the indoor environment temperature and the outdoor environment temperature is preset; the constraint conditions are as follows: the difference value between the indoor environment temperature and the evaporator temperature is larger than a preset value, and the environment humidity is smaller than a preset humidity threshold;
the control module is used for determining the operation parameter combination of the air conditioning unit according to the minimum refrigerating capacity and controlling the air conditioning unit to operate for a preset time period according to the operation parameter combination; and presetting a mapping relation between the minimum refrigerating capacity and the operation parameter combination.
7. An air conditioning unit comprising the condensate water control device of claim 6 and applying the method of any one of claims 1 to 5.
8. A computer readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the method according to any one of claims 1 to 5.
9. An electronic device, comprising:
one or more processors;
storage means for storing one or more programs which when executed by the one or more processors cause the one or more processors to implement the method of any of claims 1 to 5.
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