CN113237195A - Air conditioner dehumidification method and device, storage medium and air conditioner - Google Patents

Air conditioner dehumidification method and device, storage medium and air conditioner Download PDF

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Publication number
CN113237195A
CN113237195A CN202110483483.5A CN202110483483A CN113237195A CN 113237195 A CN113237195 A CN 113237195A CN 202110483483 A CN202110483483 A CN 202110483483A CN 113237195 A CN113237195 A CN 113237195A
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dehumidification
current
scheme
humidity
dehumidification scheme
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CN113237195B (en
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郭勇
杨坤朋
许航
王刚
李卡卡
徐盛腾
郭壮志
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Suzhou Envicool Temperature Control Technology Co ltd
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Suzhou Envicool Temperature Control Technology Co ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0083—Indoor units, e.g. fan coil units with dehumidification means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/50—Load
    • 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)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The embodiment of the invention discloses an air conditioner dehumidification method, which comprises the following steps: determining a current dehumidification scheme according to the heat load and the humidity load of the current environment, the preset temperature and humidity control precision requirement and a dehumidification scheme recommendation table; executing the current dehumidification scheme. According to the method and the device, relevant parameters of the current environment and the preset control precision are used as the basis for determining the dehumidification scheme, and the corresponding dehumidification scheme is determined in the dehumidification scheme recommendation table, so that the optimal dehumidification effect is achieved, and meanwhile, various temperature and humidity control requirements under various application scenes can be well met; the humidity load and heat load conditions in the scene are comprehensively considered, and the dehumidification capacity and the system reliability are well balanced. In addition, the invention also discloses an air conditioner dehumidification device, a storage medium and an air conditioner.

Description

Air conditioner dehumidification method and device, storage medium and air conditioner
Technical Field
The invention relates to the technical field of air conditioner dehumidification, in particular to an air conditioner dehumidification method, an air conditioner dehumidification device, a storage medium and an air conditioner.
Background
At present, the air conditioning dehumidification technology is widely applied in the industry, but along with the social development and the improvement of the living standard of people, the demand for dehumidification is more and more diversified and complicated. Such as different scenes of fiber inspection bureau, fermentation factory, high-precision laboratory, museum and the like, the temperature and humidity load condition difference is large, the temperature and humidity control targets and the precision requirements are different, and the fixed dehumidification scheme can not meet the humidity control requirements under various scenes.
Disclosure of Invention
In view of the above, it is necessary to provide a dehumidification method and apparatus for an air conditioner, a storage medium, and an air conditioner, which can perform corresponding dehumidification according to the current environmental situation.
A method of dehumidifying an air conditioner, the method comprising:
determining a current dehumidification scheme according to the heat load and the humidity load of the current environment, the preset temperature and humidity control precision requirement and a dehumidification scheme recommendation table;
executing the current dehumidification scheme.
An air conditioning dehumidification apparatus, comprising:
the determining module is used for determining a current dehumidification scheme and a thermal compensation scheme according to the heat load, the humidity load, the preset temperature and humidity control precision requirement and the dehumidification scheme recommendation table;
an execution module to execute the current dehumidification scheme and the thermal compensation scheme.
A computer-readable storage medium storing a computer program which, when executed by a processor, causes the processor to perform the steps of:
determining a current dehumidification scheme according to the heat load and the humidity load of the current environment, the preset temperature and humidity control precision requirement and a dehumidification scheme recommendation table;
executing the current dehumidification scheme.
An air conditioner comprising a memory and a processor, the memory storing a computer program that, when executed by the processor, causes the processor to perform the steps of:
determining a current dehumidification scheme according to the heat load and the humidity load of the current environment, the preset temperature and humidity control precision requirement and a dehumidification scheme recommendation table;
executing the current dehumidification scheme.
The embodiment of the invention has the following beneficial effects:
according to the air conditioner dehumidification method, the air conditioner dehumidification device, the storage medium and the air conditioner, the current dehumidification scheme is executed after the current dehumidification scheme is determined according to the heat load, the humidity load, the preset temperature and humidity control precision requirement and the dehumidification scheme recommendation table of the current environment. According to the method and the device, relevant parameters of the current environment and the preset control precision are used as the basis for determining the dehumidification scheme, and the corresponding dehumidification scheme is determined in the dehumidification scheme recommendation table, so that the optimal dehumidification effect is achieved, and meanwhile, various temperature and humidity control requirements under various application scenes can be well met; the humidity load and heat load conditions in the scene are comprehensively considered, and the dehumidification capacity and the system reliability are well balanced.
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, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Wherein:
FIG. 1 is a flow chart of an embodiment of a method for dehumidifying an air conditioner;
FIG. 2 is a flow chart of a method for dehumidifying an air conditioner in another embodiment;
FIG. 3 is a flow chart of air conditioning dehumidification in one embodiment;
FIG. 4 is a block diagram of an air conditioning and dehumidifying apparatus according to an embodiment;
fig. 5 is a block diagram showing the structure of an air conditioner according to an embodiment.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
With the development of air conditioning technology and the reduction of hardware cost, the application of air conditioning dehumidification is more common, more and more scenes are faced, and the requirements are more and more complex. In addition, dehumidification by an air conditioner usually causes a relevant change in the ambient temperature. For example, when dehumidification is performed in a manner of reducing air volume, uniformity of a temperature field is likely to be deteriorated, and local hot spots are likely to be formed; the air supply quantity of the air conditioner is less than the load air quantity, and the whole temperature control effect is poor; for another example, when dehumidification is performed in a mode that a compressor increases the frequency, the temperature of the control environment is rapidly reduced, and the energy consumption is large. Further, temperature-related variations also have an effect on the dehumidification effect of the air conditioner. Therefore, in some scenarios with high requirements for temperature and humidity control, it is difficult for a single, fixed dehumidification scheme to meet the dehumidification and control requirements of the application scenario.
In order to solve the above problem, an embodiment of the present invention provides an air conditioning dehumidification method, as shown in fig. 1, where fig. 1 is a flowchart illustrating an implementation of the air conditioning dehumidification method in an embodiment. The air conditioning dehumidification method comprises the following steps:
and 102, determining a current dehumidification scheme according to the heat load, the humidity load, the preset temperature and humidity control precision requirement and a dehumidification scheme recommendation table of the current environment.
The current environment refers to a scene environment needing dehumidification, such as a living room, a refrigerating chamber, a machine room, a laboratory, a museum and the like.
The heat load and the moisture load refer to heat and moisture generated in the current environment, and are divided into first-level to third-level heat and moisture loads according to the comparison condition with the maximum refrigerating capacity and the moisture removing capacity of the air conditioning equipment, wherein the first-level maximum and third-level are minimum, if the maximum refrigerating capacity of the air conditioner is 100KW and the heat load of the current environment is 80-100 KW, the heat load of the current environment is considered as the first-level heat load; the heat load of the current environment is 50-70 KW, and the heat load of the current environment is considered to be a secondary heat load; the heat load of the current environment is 20-40 KW, and the heat load of the current environment is considered to be a three-level heat load.
The temperature and humidity control accuracy requirement means that the temperature and humidity change fluctuation which can be accepted by the current environment can be accompanied by temperature change in the process of executing a dehumidification scheme and controlling the humidity, and some special scenes have strict requirements on the temperature and humidity control accuracy, so that the corresponding dehumidification scheme needs to be designed according to the control accuracy; the temperature and humidity control precision requirements are preset in the air conditioning equipment as fixed attributes of the current environment, and are divided into first-level precision, second-level precision and third-level precision according to different precision requirements, wherein the control precision requirement of the first-level precision is the highest, and the control requirement of the third-level precision is the lowest.
The dehumidification scheme recommendation table is a data table preset in the air conditioning equipment and is used for enabling the air conditioning equipment to determine a corresponding dehumidification scheme in the dehumidification scheme recommendation table according to a real-time monitored heat and humidity load condition and a preset temperature and humidity control precision requirement; the corresponding relation between the heat and moisture load, the precision and the dehumidification scheme in the table is obtained through a large amount of experimental data and implementation data in an inductive and summarizing manner.
It is understood that the factors for determining the dehumidification scheme may include other factors, such as specific factors of an application scenario, whether to save energy, and the like, besides the heat load, the humidity load, and the preset temperature and humidity control accuracy requirement.
In one embodiment, the application scene is a common home scene, human body feeling is required to be considered when the air conditioner dehumidifies, a dehumidification mode for reducing the wind speed of the inner fan is selected as a dehumidification scheme, and the human body feeling is kept from being changed greatly while dehumidification is carried out.
In another embodiment, the application scene is a machine room, human body feeling is not required to be taken as a main consideration during air conditioner dehumidification, a dehumidification mode for improving the output frequency of the compressor can be selected as a dehumidification scheme, the temperature of the machine room and the temperature of equipment in the machine room are reduced, and a good dehumidification effect is achieved.
And 104, executing the current dehumidification scheme.
The dehumidification scheme includes a thermal compensation scheme, which is executed when the temperature reaches a predetermined condition, so as to control the temperature.
According to the air conditioner dehumidification method, the current dehumidification scheme is executed after the current dehumidification scheme is determined according to the heat load and the humidity load of the current environment, the preset temperature and humidity control precision requirement and the dehumidification scheme recommendation table. According to the method and the device, relevant parameters of the current environment and the preset control precision are used as the basis for determining the dehumidification scheme, and the corresponding dehumidification scheme is determined in the dehumidification scheme recommendation table, so that the optimal dehumidification effect is achieved, and meanwhile, various temperature and humidity control requirements under various application scenes can be well met; the humidity load and heat load conditions in the scene are comprehensively considered, and the dehumidification capacity and the system reliability are well balanced.
In one embodiment, the performing the current dehumidification scheme comprises: calculating to obtain a dew point temperature difference according to the return air dew point temperature value and the surface temperature value of the evaporating coil; and executing the current dehumidification scheme according to the dew point temperature difference.
The return air dew point temperature value refers to the condensation temperature of return air in the air circulation system.
It can be understood that when the surface temperature of the evaporating coil is lower than the dew point temperature of the return air, the water in the air can be analyzed, and the dehumidification effect is further achieved; further, the larger the difference between the return air dew point temperature and the surface temperature of the evaporating coil, that is, the larger the dew point temperature difference, the better the dehumidification effect, but attention should be paid to the influence on the indoor temperature, the system reliability and the like when the dew point temperature difference becomes large.
In the prior art, the dehumidification effect of the air conditioner is generally judged according to the real-time humidity of the air, and the dehumidification requirement is calculated and expressed according to the related parameters of the humidity, but the calculation of the related parameters of the humidity can only indicate the difference value between the current humidity and the target humidity, and cannot reflect the current dehumidification capacity and the dehumidification effect of an air conditioner system. For example, when the evaporation temperature is low, and the difference between the return air dew point temperature and the surface temperature of the evaporation coil is large, such as greater than 15 ℃, the current dehumidification effect is good, if a large humidity load suddenly appears at the moment or the humidity load of the environment is not obviously reduced, the dehumidification effect is not good at the moment according to the judgment of a common method, the dehumidification needs to be further enhanced, but the frequency of the compressor is increased or the rotating speed of the inner fan is reduced, so that the evaporation temperature is only lowered, and the risks of coil freezing and system liquid return are increased.
Therefore, the dehumidification effect of the air conditioner is judged more accurately according to the dew point temperature difference. When the temperature difference of the dew point is small, the dehumidification effect is poor, and the dehumidification needs to be enhanced; when the dew point temperature difference is within a preset difference range, the dehumidification effect is good, and adjustment is not needed; when the dew point temperature difference is too large, the risk of coil icing and system liquid return is indicated, and the air conditioner needs to be restarted or even fails and needs to be restored and adjusted.
As shown in fig. 2, in an embodiment, after the current dehumidification scheme is performed, the method further includes:
and 106, acquiring the current air humidity when the current dehumidification scheme is executed.
The air conditioning equipment can acquire air humidity through a built-in electronic humidity sensor, a wet-dry bulb hygrometer and other components; or other data can be acquired firstly and then the air humidity is returned to the air conditioning equipment after intelligent calculation.
When the dehumidification scheme is executed, the current air humidity during dehumidification needs to be continuously acquired, and the air conditioning equipment is controlled to further dehumidify or the dehumidification function is closed according to the change of the humidity in a specific time period.
And 108, when the current air humidity is greater than the humidity threshold corresponding to the current dehumidification scheme and the duration is greater than the time threshold corresponding to the current dehumidification scheme, acquiring a next dehumidification scheme.
The dehumidification scheme is correspondingly provided with a preset humidity threshold and a time threshold, wherein both the two thresholds are related to the theoretical dehumidification capacity of the dehumidification scheme, namely in a theoretical state, after the current dehumidification scheme is executed for a period of time, the air humidity should drop below a certain level, and the continuous time is counted from the execution of the dehumidification scheme; when the air humidity is higher than the humidity threshold and the duration exceeds the time threshold, the air conditioning equipment will perform the replacement of the dehumidification scheme.
When the dehumidification scheme needs to be replaced, the indication that the expectation of dehumidification cannot be achieved within the preset time period after the current dehumidification scheme is executed is shown, at this time, a better dehumidification effect can be achieved by the current dehumidification scheme, but the humidity load in a scene is still larger, so that the air conditioner obtains the next dehumidification scheme to be prepared for execution, and the expectation of dehumidification is achieved.
It can be understood that the dehumidification scheme determined by the air conditioning equipment according to the heat load, the humidity load, the preset temperature and humidity control accuracy requirement and the dehumidification scheme recommendation table of the current environment is the preferred scheme with the highest matching degree, and when the dehumidification scheme fails to achieve the expectation of dehumidification, the air conditioning equipment obtains the dehumidification scheme with stronger dehumidification capacity and the original dehumidification scheme from the queue with the preferred sorting of the matching degree for replacement.
It should be noted that the dehumidification scheme may be a single dehumidification mode or a plurality of dehumidification modes. In one embodiment, after the air conditioner executes a first dehumidification scheme for reducing the rotation speed of an inner fan, within 5 minutes of a preset time threshold, the air humidity is greater than 50% of a preset humidity threshold corresponding to the first dehumidification scheme, and at this time, a second dehumidification scheme in a preset dehumidification scheme sequence in the air conditioner is acquired and executed as a current dehumidification scheme, wherein the second dehumidification scheme is to execute the reduction of the rotation speed of the inner fan and the increase of the frequency of a compressor at the same time; and because the rotating speed of the inner fan is reduced to the preset lowest dehumidifying rotating speed within 5 minutes of executing the first dehumidifying scheme, when the second dehumidifying scheme is executed, the rotating speed of the inner fan is kept to be the preset lowest dehumidifying rotating speed, and the frequency of the compressor is increased.
And step 110, taking the next dehumidification scheme as a current dehumidification scheme, and entering the step of 'acquiring the current air humidity when the current dehumidification scheme is executed', and turning off the dehumidification function until the current air humidity is smaller than a preset first target humidity threshold value.
When the current air humidity is smaller than the preset first target humidity threshold, the air humidity in the current environment reaches an ideal state, and continuous dehumidification is not needed. In one embodiment, the first target humidity threshold is the result of subtracting a humidity return difference from an ideal humidity value, so as to ensure that the dehumidification function of the air conditioner is not frequently turned on or off due to humidity fluctuation.
In one embodiment, the determining a current dehumidification scheme according to a heat load, a humidity load, a preset temperature and humidity control accuracy requirement of a current environment and a dehumidification scheme recommendation table includes: when the current environment has constant secondary heat load and periodic moisture load, the preset temperature and humidity control precision requirement is secondary precision, and the air supply distance is within a distance threshold, determining that the current dehumidification scheme at least comprises reducing the rotating speed of an inner fan; when the current dehumidification scheme at least comprises the reduction of the rotating speed of an inner fan, the current dehumidification scheme is executed according to the dew point temperature difference, and the method comprises the following steps: when the dew point temperature difference is within a first preset range, the inner fan maintains the current rotating speed; and when the dew point temperature difference is smaller than the first preset range, reducing the rotating speed of the inner fan.
The air quantity reduction dehumidification is a common means in the air conditioner dehumidification, and the evaporation temperature reduction can be realized only by reducing the rotating speed of the inner fan, so that the dehumidification purpose is achieved. Specifically, when the rotating speed of the inner fan is reduced, the flow velocity of fluid on one side in the pipe is reduced, the heat transfer coefficient is further reduced, the total heat exchange quantity is reduced, the heat absorption of the evaporation coil is less, the surface temperature of the evaporation coil is lower, and the dehumidification effect is improved.
It can be understood that reducing the rotation speed of the inner fan directly results in shortening the air supply distance, and therefore, the method is suitable for the implementation of the environment in which the requirement of the air supply distance does not exceed the distance threshold.
In one embodiment, when a dehumidification scheme for reducing the rotating speed of the inner fan is executed, when the temperature difference of a dew point is detected to be between 5 and 10 ℃, the theoretical dehumidification effect is good, and the current rotating speed of the inner fan is kept unchanged; when the detected dew point temperature difference is less than 5 ℃, controlling the rotating speed of the inner fan to be reduced by 5%; calculating the dew point temperature difference every 30s, and judging whether the inner fan needs to be adjusted; the reduced rotating speed of the inner fan is not lower than the preset minimum dehumidifying rotating speed of the inner fan, so that the normal operation of the dehumidifying function of the air conditioning system is ensured.
In one embodiment, the determining a current dehumidification scheme according to a heat load, a humidity load, a preset temperature and humidity control accuracy requirement of a current environment and a dehumidification scheme recommendation table includes: when the current environment has a constant first-stage heat load and a constant first-stage humidity load and the preset temperature and humidity control precision requirement is a third-stage precision, determining that the current dehumidification scheme at least comprises the step of increasing the output frequency of a compressor; when the current dehumidification scheme at least comprises increasing the output frequency of the compressor, the current dehumidification scheme is executed according to the dew point temperature difference, and the method further comprises the following steps: when the dew point temperature difference is within a second preset range, the compressor maintains the current output frequency; and when the dew point temperature difference is smaller than the second preset range, the output frequency of the compressor is increased.
When the output frequency of the compressor is increased, the ambient temperature can be directly reduced, a large amount of cold energy is produced, moisture in the air is more easily separated out, and dehumidification is performed visually; meanwhile, although the moisture content in the air is reduced as the precipitation amount of the wet air is increased when the wet air passes through the coil pipe, the temperature is greatly reduced and the moisture content is reduced through the analysis of the relationship among the temperature, the moisture content and the relative humidity, and the phenomenon that the relative humidity is increased is likely to occur and is reflected on the application level, namely, the dehumidification effect is not achieved or is very poor. Therefore, when the output frequency of the compressor is raised, a thermal compensation scheme is generally required to be executed at the same time, so as to avoid the room temperature from being lower than a set value and even the compressor is stopped.
It can be understood that a large amount of cold energy is produced when the output frequency of the compressor is increased, so that the energy consumption is large, and the cold energy needs to be properly used for the energy conservation in a scene.
In one embodiment, when a dehumidification scheme for increasing the output frequency of the compressor is executed, when the dew point temperature difference is detected to be 7-12 ℃, the theoretical dehumidification effect is good, and the compressor maintains the current frequency output; when the detected dew point temperature difference is less than 7 ℃, controlling the output frequency of the compressor to be increased by 6 Hz; and calculating the dew point temperature difference once every 30s, judging whether the compressor needs to be adjusted or not, wherein the output frequency of the improved compressor is not higher than the preset highest dehumidification output frequency of the compressor so as to avoid the phenomenon that the output frequency of the compressor is too high, the dehumidification effect is influenced and the service life of the compressor is shortened.
In one embodiment, the determining a current dehumidification scheme according to a heat load, a humidity load, a preset temperature and humidity control accuracy requirement of a current environment and a dehumidification scheme recommendation table includes: when the current environment has constant three-level heat load and three-level humidity load and the preset temperature and humidity control precision requirement is the second-level precision, determining that the current dehumidification scheme at least comprises the step of reducing the opening of the electronic expansion valve; when the current dehumidification scheme is to reduce the opening of the electronic expansion valve, the current dehumidification scheme is executed according to the dew point temperature difference, and the method further comprises the following steps: when the dew point temperature difference is within a third preset range, the electronic expansion valve maintains the current opening degree; and when the dew point temperature difference is smaller than the third preset range, the opening degree of the electronic expansion valve is reduced.
The opening of the electronic expansion valve is reduced, so that the flow of refrigerant fluid is reduced, the evaporation pressure and the evaporation temperature are reduced, and the dehumidification effect is enhanced; however, when the flow of the refrigerant fluid passing through the evaporation coil is too small, the temperature difference between two ends of the evaporation coil is too large, the temperature of the evaporation coil is slow to be reduced, and even the liquid flows back. Therefore, the hardware of the air conditioner is required to be in a dehumidification mode of reducing the opening degree of the electronic expansion valve, the pipeline of the evaporation coil cannot be too long or too thin, and otherwise, the dehumidification scheme of reducing the opening degree of the electronic expansion valve is executed to easily generate adverse effects.
In one embodiment, the determining a current dehumidification scheme according to a heat load, a humidity load, a preset temperature and humidity control accuracy requirement of a current environment and a dehumidification scheme recommendation table includes: when the current environment has constant secondary heat load and periodic moisture load and the preset temperature and humidity control precision requirement is secondary precision, determining that the current dehumidification scheme at least comprises closing part of the evaporation coil; when the current dehumidification scheme at least includes closing a portion of an evaporator coil, the executing the current dehumidification scheme according to the dew point temperature differential further includes: and when the dew point temperature difference is smaller than the fourth preset range, closing part of the evaporation coil.
The heat exchange area can be directly reduced by closing part of the evaporation coil, so that the whole heat exchange amount is reduced, the heat absorption of the evaporation coil is less, the evaporation temperature is lower, and the dehumidification effect is better; it will be appreciated that prolonged dehumidification of a portion of the coil can result in the evaporator coil being at too low a temperature, risking icing of the coil.
In one embodiment, after the performing the current dehumidification scheme, the method further comprises: and when the air temperature in the current environment is less than a preset temperature threshold value and the duration time exceeds a preset duration time, executing a thermal compensation scheme in the current dehumidification scheme.
The air conditioning equipment starts to periodically detect the air temperature from the beginning of executing the dehumidification scheme, so that the timely compensation and adjustment of the temperature change caused by the dehumidification process can be carried out. In one embodiment, the preset temperature threshold is a calculation result of subtracting a temperature return difference from an ideal temperature value of the current environment, so as to prevent frequent activation and deactivation of the thermal compensation function.
In one embodiment, the determining a current dehumidification scheme according to a heat load, a humidity load, a preset temperature and humidity control accuracy requirement of a current environment and a dehumidification scheme recommendation table further includes: when the current environment has a second-level or third-level heat load and the preset temperature and humidity control precision requirement is first-level precision or second-level precision, determining that the current dehumidification scheme at least comprises auxiliary electric heating in the thermal compensation scheme; and when the current environment has a periodic heat and humidity load, the preset temperature and humidity control precision requirement is three-level precision, and energy conservation is required, determining that the current dehumidification scheme at least comprises hot gas bypass in the thermal compensation scheme.
In addition, besides considering the thermal-humidity load and the temperature-humidity control precision requirement in the current environment, the application scene requirement and the hardware condition of the air conditioning equipment are also considered to determine which of two thermal compensation schemes needs to be preset in the air conditioner; for example, when a capillary system is used in the current air conditioning system, or an automatic expansion valve or an expansion valve with an unadjustable superheat degree is used, the thermal compensation scheme of hot gas bypass is not applicable; when the thermal compensation scheme of auxiliary electric heating is adopted, the energy consumption is large. Of course, when the hardware condition allows, two thermal compensation schemes may be preset in the air conditioning equipment at the same time, and the corresponding thermal compensation scheme is selected to be executed according to the priority of the matching degree during actual dehumidification.
In one embodiment, the air conditioner performs dehumidification in various schemes, generates large cold quantity, causes large fluctuation of ambient temperature, and executes an auxiliary electric heating scheme for temperature compensation when detecting that the air temperature is lower than a temperature threshold value and the duration time exceeds a preset time so as to ensure that the compressor does not stop due to too low temperature; meanwhile, the humidity rise caused by temperature reduction is avoided, and the dehumidification effect is influenced.
In one embodiment, the surface temperature value of the evaporation coil is calculated according to the evaporation temperature and a preset heat transfer temperature difference; the executing the current dehumidification scheme according to the dew point temperature difference further comprises: and periodically calculating the dew point temperature difference, and executing the current dehumidification scheme according to the different dew point temperature differences.
The surface temperature of the evaporation coil is greatly influenced by the measurement point position, the wind field and the like, and the surface temperature of the coil is generally evaluated by the evaporation temperature and the heat transfer temperature difference. In one embodiment, the heat transfer temperature difference is 5 ℃.
In one embodiment, as illustrated in FIG. 3Fig. 3 is a dehumidification flow chart in an embodiment, and when the air conditioner detects that dehumidification is required, the dehumidification function is turned on; determining and executing a first dehumidification scheme according to the current heat load, the current humidity load, the preset temperature and humidity control precision and a dehumidification scheme recommendation table, and reducing the rotating speed of the inner fan; the current humidity TH is detected in the continuous time T1At presentThe humidity values are all larger than the humidity threshold TH1 corresponding to the first dehumidification scheme, which indicates that the humidity load is larger at the moment, the first dehumidification scheme cannot meet the dehumidification requirement, the second dehumidification scheme is replaced and executed, the rotating speed of the inner fan is reduced, and the output frequency of the compressor is increased; the current humidity TH is detected in the continuous time T2At presentThe humidity values are greater than the humidity threshold TH2 corresponding to the second dehumidification scheme, which indicates that the humidity load is large at the moment, the second dehumidification scheme still cannot meet the dehumidification requirement, the third dehumidification scheme is replaced and executed, and meanwhile, the rotating speed of the inner fan is reduced, the output frequency of the compressor is increased, and the opening degree of the electronic expansion valve is reduced; at the moment, a large amount of cold energy is produced, the current temperature detected in the continuous time T3 is smaller than the preset temperature threshold value, and the air conditioner executes a heat compensation scheme of auxiliary electric heating.
It is understood that, in this embodiment, referring again to fig. 3, when the current temperatures are detected to be greater than the preset temperature threshold value within the continuous time T3, the thermal compensation scheme is turned off; in the continuous time of the time threshold value corresponding to the dehumidification scheme, if the current air humidity is detected to be smaller than the humidity threshold value corresponding to the dehumidification scheme, closing the current dehumidification scheme, and replacing the current dehumidification scheme with the previous dehumidification scheme in the dehumidification scheme sequence; finally, when the air humidity is less than the first target air humidity threshold, the dehumidification function is turned off.
As shown in fig. 4, there is provided an air conditioning dehumidifying apparatus, comprising:
a determining module 10, configured to determine a current dehumidification scheme and a thermal compensation scheme according to the heat load, the humidity load, the preset temperature and humidity control accuracy requirement, and the dehumidification scheme recommendation table;
an execution module 20 for executing the current dehumidification scheme and the thermal compensation scheme.
In one embodiment, the performing the current dehumidification scheme comprises: calculating to obtain a dew point temperature difference according to the return air dew point temperature value and the surface temperature value of the evaporating coil; and executing the current dehumidification scheme according to the dew point temperature difference.
In one embodiment, after the performing the current dehumidification scheme, further comprising: acquiring the current air humidity when the current dehumidification scheme is executed; when the current air humidity is greater than the humidity threshold corresponding to the current dehumidification scheme and the duration time is greater than the time threshold corresponding to the current dehumidification scheme, acquiring a next dehumidification scheme; and taking the next dehumidification scheme as the current dehumidification scheme, entering the step of obtaining the current air humidity when the current dehumidification scheme is executed, and closing the dehumidification function until the current air humidity is smaller than a preset first target humidity threshold value.
In one embodiment, the determining a current dehumidification scheme according to a heat load, a humidity load, a preset temperature and humidity control accuracy requirement of a current environment and a dehumidification scheme recommendation table includes: when the current environment has constant secondary heat load and periodic moisture load, the preset temperature and humidity control precision requirement is secondary precision, and the air supply distance is within a distance threshold, determining that the current dehumidification scheme at least comprises reducing the rotating speed of an inner fan; when the current dehumidification scheme at least comprises the reduction of the rotating speed of an inner fan, the current dehumidification scheme is executed according to the dew point temperature difference, and the method comprises the following steps: when the dew point temperature difference is within a first preset range, the inner fan maintains the current rotating speed; and when the dew point temperature difference is smaller than the first preset range, reducing the rotating speed of the inner fan.
In one embodiment, the determining a current dehumidification scheme according to a heat load, a humidity load, a preset temperature and humidity control accuracy requirement of a current environment and a dehumidification scheme recommendation table includes: when the current environment has a constant first-stage heat load and a constant first-stage humidity load and the preset temperature and humidity control precision requirement is a third-stage precision, determining that the current dehumidification scheme at least comprises the step of increasing the output frequency of a compressor; when the current dehumidification scheme at least comprises increasing the output frequency of the compressor, the current dehumidification scheme is executed according to the dew point temperature difference, and the method further comprises the following steps: when the dew point temperature difference is within a second preset range, the compressor maintains the current output frequency; and when the dew point temperature difference is smaller than the second preset range, the output frequency of the compressor is increased.
In one embodiment, the determining a current dehumidification scheme according to a heat load, a humidity load, a preset temperature and humidity control accuracy requirement of a current environment and a dehumidification scheme recommendation table includes: when the current environment has constant three-level heat load and three-level humidity load and the preset temperature and humidity control precision requirement is the second-level precision, determining that the current dehumidification scheme at least comprises the step of reducing the opening of the electronic expansion valve; when the current dehumidification scheme is to reduce the opening of the electronic expansion valve, the current dehumidification scheme is executed according to the dew point temperature difference, and the method further comprises the following steps: when the dew point temperature difference is within a third preset range, the electronic expansion valve maintains the current opening degree; and when the dew point temperature difference is smaller than the third preset range, the opening degree of the electronic expansion valve is reduced.
In one embodiment, the determining a current dehumidification scheme according to a heat load, a humidity load, a preset temperature and humidity control accuracy requirement of a current environment and a dehumidification scheme recommendation table includes: when the current environment has constant secondary heat load and periodic moisture load and the preset temperature and humidity control precision requirement is secondary precision, determining that the current dehumidification scheme at least comprises closing part of the evaporation coil; when the current dehumidification scheme at least includes closing a portion of an evaporator coil, the executing the current dehumidification scheme according to the dew point temperature differential further includes: and when the dew point temperature difference is smaller than the fourth preset range, closing part of the evaporation coil.
In one embodiment, after the performing the current dehumidification scheme, the method further comprises: and when the air temperature in the current environment is less than a preset temperature threshold value and the duration time exceeds a preset duration time, executing a thermal compensation scheme in the current dehumidification scheme.
In one embodiment, the determining a current dehumidification scheme according to a heat load, a humidity load, a preset temperature and humidity control accuracy requirement of a current environment and a dehumidification scheme recommendation table further includes: when the current environment has a second-level or third-level heat load and the preset temperature and humidity control precision requirement is first-level precision or second-level precision, determining that the current dehumidification scheme at least comprises auxiliary electric heating in the thermal compensation scheme; and when the current environment has a periodic heat and humidity load, the preset temperature and humidity control precision requirement is three-level precision, and energy conservation is required, determining that the current dehumidification scheme at least comprises hot gas bypass in the thermal compensation scheme.
Fig. 5 shows an internal structure of an air conditioner in one embodiment. As shown in fig. 5, the air conditioner includes a processor, a memory, and a network interface connected through a system bus. Wherein the memory includes a non-volatile storage medium and an internal memory. The non-volatile storage medium of the air conditioner stores an operating system and also stores a computer program, and when the computer program is executed by a processor, the computer program can enable the processor to realize the air conditioner dehumidification method. The internal memory may also store a computer program, and the computer program, when executed by the processor, may cause the processor to perform the air conditioning dehumidification method. It will be understood by those skilled in the art that the configuration shown in fig. 5 is a block diagram of only a portion of the configuration associated with the present application, and does not constitute a limitation on the air conditioner to which the present application is applied, and a particular air conditioner may include more or less components than those shown in the drawings, or combine certain components, or have a different arrangement of components.
In one embodiment, an air conditioner is proposed, comprising a memory and a processor, the memory storing a computer program which, when executed by the processor, causes the processor to perform the steps of:
determining a current dehumidification scheme according to the heat load and the humidity load of the current environment, the preset temperature and humidity control precision requirement and a dehumidification scheme recommendation table; executing the current dehumidification scheme.
In one embodiment, the performing the current dehumidification scheme comprises: calculating to obtain a dew point temperature difference according to the return air dew point temperature value and the surface temperature value of the evaporating coil; and executing the current dehumidification scheme according to the dew point temperature difference.
In one embodiment, after the performing the current dehumidification scheme, further comprising: acquiring the current air humidity when the current dehumidification scheme is executed; when the current air humidity is greater than the humidity threshold corresponding to the current dehumidification scheme and the duration time is greater than the time threshold corresponding to the current dehumidification scheme, acquiring a next dehumidification scheme; and taking the next dehumidification scheme as the current dehumidification scheme, entering the step of obtaining the current air humidity when the current dehumidification scheme is executed, and closing the dehumidification function until the current air humidity is smaller than a preset first target humidity threshold value.
In one embodiment, the determining a current dehumidification scheme according to a heat load, a humidity load, a preset temperature and humidity control accuracy requirement of a current environment and a dehumidification scheme recommendation table includes: when the current environment has constant secondary heat load and periodic moisture load, the preset temperature and humidity control precision requirement is secondary precision, and the air supply distance is within a distance threshold, determining that the current dehumidification scheme at least comprises reducing the rotating speed of an inner fan; when the current dehumidification scheme at least comprises the reduction of the rotating speed of an inner fan, the current dehumidification scheme is executed according to the dew point temperature difference, and the method comprises the following steps: when the dew point temperature difference is within a first preset range, the inner fan maintains the current rotating speed; and when the dew point temperature difference is smaller than the first preset range, reducing the rotating speed of the inner fan.
In one embodiment, the determining a current dehumidification scheme according to a heat load, a humidity load, a preset temperature and humidity control accuracy requirement of a current environment and a dehumidification scheme recommendation table includes: when the current environment has a constant first-stage heat load and a constant first-stage humidity load and the preset temperature and humidity control precision requirement is a third-stage precision, determining that the current dehumidification scheme at least comprises the step of increasing the output frequency of a compressor; when the current dehumidification scheme at least comprises increasing the output frequency of the compressor, the current dehumidification scheme is executed according to the dew point temperature difference, and the method further comprises the following steps: when the dew point temperature difference is within a second preset range, the compressor maintains the current output frequency; and when the dew point temperature difference is smaller than the second preset range, the output frequency of the compressor is increased.
In one embodiment, the determining a current dehumidification scheme according to a heat load, a humidity load, a preset temperature and humidity control accuracy requirement of a current environment and a dehumidification scheme recommendation table includes: when the current environment has constant three-level heat load and three-level humidity load and the preset temperature and humidity control precision requirement is the second-level precision, determining that the current dehumidification scheme at least comprises the step of reducing the opening of the electronic expansion valve; when the current dehumidification scheme is to reduce the opening of the electronic expansion valve, the current dehumidification scheme is executed according to the dew point temperature difference, and the method further comprises the following steps: when the dew point temperature difference is within a third preset range, the electronic expansion valve maintains the current opening degree; and when the dew point temperature difference is smaller than the third preset range, the opening degree of the electronic expansion valve is reduced.
In one embodiment, the determining a current dehumidification scheme according to a heat load, a humidity load, a preset temperature and humidity control accuracy requirement of a current environment and a dehumidification scheme recommendation table includes: when the current environment has constant secondary heat load and periodic moisture load and the preset temperature and humidity control precision requirement is secondary precision, determining that the current dehumidification scheme at least comprises closing part of the evaporation coil; when the current dehumidification scheme at least includes closing a portion of an evaporator coil, the executing the current dehumidification scheme according to the dew point temperature differential further includes: and when the dew point temperature difference is smaller than the fourth preset range, closing part of the evaporation coil.
In one embodiment, after the performing the current dehumidification scheme, the method further comprises: and when the air temperature in the current environment is less than a preset temperature threshold value and the duration time exceeds a preset duration time, executing a thermal compensation scheme in the current dehumidification scheme.
In one embodiment, the determining a current dehumidification scheme according to a heat load, a humidity load, a preset temperature and humidity control accuracy requirement of a current environment and a dehumidification scheme recommendation table further includes: when the current environment has a second-level or third-level heat load and the preset temperature and humidity control precision requirement is first-level precision or second-level precision, determining that the current dehumidification scheme at least comprises auxiliary electric heating in the thermal compensation scheme; and when the current environment has a periodic heat and humidity load, the preset temperature and humidity control precision requirement is three-level precision, and energy conservation is required, determining that the current dehumidification scheme at least comprises hot gas bypass in the thermal compensation scheme.
In one embodiment, a computer-readable storage medium is proposed, in which a computer program is stored which, when executed by a processor, causes the processor to carry out the steps of:
determining a current dehumidification scheme according to the heat load and the humidity load of the current environment, the preset temperature and humidity control precision requirement and a dehumidification scheme recommendation table; executing the current dehumidification scheme.
In one embodiment, the performing the current dehumidification scheme comprises: calculating to obtain a dew point temperature difference according to the return air dew point temperature value and the surface temperature value of the evaporating coil; and executing the current dehumidification scheme according to the dew point temperature difference.
In one embodiment, after the performing the current dehumidification scheme, further comprising: acquiring the current air humidity when the current dehumidification scheme is executed; when the current air humidity is greater than the humidity threshold corresponding to the current dehumidification scheme and the duration time is greater than the time threshold corresponding to the current dehumidification scheme, acquiring a next dehumidification scheme; and taking the next dehumidification scheme as the current dehumidification scheme, entering the step of obtaining the current air humidity when the current dehumidification scheme is executed, and closing the dehumidification function until the current air humidity is smaller than a preset first target humidity threshold value.
In one embodiment, the determining a current dehumidification scheme according to a heat load, a humidity load, a preset temperature and humidity control accuracy requirement of a current environment and a dehumidification scheme recommendation table includes: when the current environment has constant secondary heat load and periodic moisture load, the preset temperature and humidity control precision requirement is secondary precision, and the air supply distance is within a distance threshold, determining that the current dehumidification scheme at least comprises reducing the rotating speed of an inner fan; when the current dehumidification scheme at least comprises the reduction of the rotating speed of an inner fan, the current dehumidification scheme is executed according to the dew point temperature difference, and the method comprises the following steps: when the dew point temperature difference is within a first preset range, the inner fan maintains the current rotating speed; and when the dew point temperature difference is smaller than the first preset range, reducing the rotating speed of the inner fan.
In one embodiment, the determining a current dehumidification scheme according to a heat load, a humidity load, a preset temperature and humidity control accuracy requirement of a current environment and a dehumidification scheme recommendation table includes: when the current environment has a constant first-stage heat load and a constant first-stage humidity load and the preset temperature and humidity control precision requirement is a third-stage precision, determining that the current dehumidification scheme at least comprises the step of increasing the output frequency of a compressor; when the current dehumidification scheme at least comprises increasing the output frequency of the compressor, the current dehumidification scheme is executed according to the dew point temperature difference, and the method further comprises the following steps: when the dew point temperature difference is within a second preset range, the compressor maintains the current output frequency; and when the dew point temperature difference is smaller than the second preset range, the output frequency of the compressor is increased.
In one embodiment, the determining a current dehumidification scheme according to a heat load, a humidity load, a preset temperature and humidity control accuracy requirement of a current environment and a dehumidification scheme recommendation table includes: when the current environment has constant three-level heat load and three-level humidity load and the preset temperature and humidity control precision requirement is the second-level precision, determining that the current dehumidification scheme at least comprises the step of reducing the opening of the electronic expansion valve; when the current dehumidification scheme is to reduce the opening of the electronic expansion valve, the current dehumidification scheme is executed according to the dew point temperature difference, and the method further comprises the following steps: when the dew point temperature difference is within a third preset range, the electronic expansion valve maintains the current opening degree; and when the dew point temperature difference is smaller than the third preset range, the opening degree of the electronic expansion valve is reduced.
In one embodiment, the determining a current dehumidification scheme according to a heat load, a humidity load, a preset temperature and humidity control accuracy requirement of a current environment and a dehumidification scheme recommendation table includes: when the current environment has constant secondary heat load and periodic moisture load and the preset temperature and humidity control precision requirement is secondary precision, determining that the current dehumidification scheme at least comprises closing part of the evaporation coil; when the current dehumidification scheme at least includes closing a portion of an evaporator coil, the executing the current dehumidification scheme according to the dew point temperature differential further includes: and when the dew point temperature difference is smaller than the fourth preset range, closing part of the evaporation coil.
In one embodiment, after the performing the current dehumidification scheme, the method further comprises: and when the air temperature in the current environment is less than a preset temperature threshold value and the duration time exceeds a preset duration time, executing a thermal compensation scheme in the current dehumidification scheme.
In one embodiment, the determining a current dehumidification scheme according to a heat load, a humidity load, a preset temperature and humidity control accuracy requirement of a current environment and a dehumidification scheme recommendation table further includes: when the current environment has a second-level or third-level heat load and the preset temperature and humidity control precision requirement is first-level precision or second-level precision, determining that the current dehumidification scheme at least comprises auxiliary electric heating in the thermal compensation scheme; and when the current environment has a periodic heat and humidity load, the preset temperature and humidity control precision requirement is three-level precision, and energy conservation is required, determining that the current dehumidification scheme at least comprises hot gas bypass in the thermal compensation scheme.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a non-volatile computer-readable storage medium, and can include the processes of the embodiments of the methods described above when the program is executed. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (12)

1. An air conditioning dehumidification method, comprising:
determining a current dehumidification scheme according to the heat load and the humidity load of the current environment, the preset temperature and humidity control precision requirement and a dehumidification scheme recommendation table;
executing the current dehumidification scheme.
2. The air conditioner dehumidification method according to claim 1, wherein said executing the current dehumidification scheme comprises:
calculating to obtain a dew point temperature difference according to the return air dew point temperature value and the surface temperature value of the evaporating coil;
and executing the current dehumidification scheme according to the dew point temperature difference.
3. The air conditioner dehumidification method according to claim 1, further comprising, after said executing said current dehumidification scheme:
acquiring the current air humidity when the current dehumidification scheme is executed;
when the current air humidity is greater than the humidity threshold corresponding to the current dehumidification scheme and the duration time is greater than the time threshold corresponding to the current dehumidification scheme, acquiring a next dehumidification scheme;
and taking the next dehumidification scheme as the current dehumidification scheme, entering the step of obtaining the current air humidity when the current dehumidification scheme is executed, and closing the dehumidification function until the current air humidity is smaller than a preset first target humidity threshold value.
4. The air conditioner dehumidification method according to claim 2, wherein the determining a current dehumidification scheme according to a heat load, a humidity load, a preset temperature and humidity control accuracy requirement and a dehumidification scheme recommendation table of a current environment comprises:
when the current environment has constant secondary heat load and periodic moisture load, the preset temperature and humidity control precision requirement is secondary precision, and the air supply distance is within a distance threshold, determining that the current dehumidification scheme at least comprises reducing the rotating speed of an inner fan;
when the current dehumidification scheme at least comprises the reduction of the rotating speed of an inner fan, the current dehumidification scheme is executed according to the dew point temperature difference, and the method comprises the following steps:
when the dew point temperature difference is within a first preset range, the inner fan maintains the current rotating speed;
and when the dew point temperature difference is smaller than the first preset range, reducing the rotating speed of the inner fan.
5. The air conditioner dehumidification method according to claim 2, wherein the determining a current dehumidification scheme according to a heat load, a humidity load, a preset temperature and humidity control accuracy requirement and a dehumidification scheme recommendation table of a current environment comprises:
when the current environment has a constant first-stage heat load and a constant first-stage humidity load and the preset temperature and humidity control precision requirement is a third-stage precision, determining that the current dehumidification scheme at least comprises the step of increasing the output frequency of a compressor;
when the current dehumidification scheme at least comprises increasing the output frequency of the compressor, the current dehumidification scheme is executed according to the dew point temperature difference, and the method further comprises the following steps:
when the dew point temperature difference is within a second preset range, the compressor maintains the current output frequency;
and when the dew point temperature difference is smaller than the second preset range, the output frequency of the compressor is increased.
6. The air conditioner dehumidification method according to claim 2, wherein the determining a current dehumidification scheme according to a heat load, a humidity load, a preset temperature and humidity control accuracy requirement and a dehumidification scheme recommendation table of a current environment comprises:
when the current environment has constant three-level heat load and three-level humidity load and the preset temperature and humidity control precision requirement is the second-level precision, determining that the current dehumidification scheme at least comprises the step of reducing the opening of the electronic expansion valve;
when the current dehumidification scheme is to reduce the opening of the electronic expansion valve, the current dehumidification scheme is executed according to the dew point temperature difference, and the method further comprises the following steps:
when the dew point temperature difference is within a third preset range, the electronic expansion valve maintains the current opening degree;
and when the dew point temperature difference is smaller than the third preset range, the opening degree of the electronic expansion valve is reduced.
7. The air conditioner dehumidification method according to claim 2, wherein the determining a current dehumidification scheme according to a heat load, a humidity load, a preset temperature and humidity control accuracy requirement and a dehumidification scheme recommendation table of a current environment comprises:
when the current environment has constant secondary heat load and periodic moisture load and the preset temperature and humidity control precision requirement is secondary precision, determining that the current dehumidification scheme at least comprises closing part of the evaporation coil;
when the current dehumidification scheme at least includes closing a portion of an evaporator coil, the executing the current dehumidification scheme according to the dew point temperature differential further includes:
and when the dew point temperature difference is smaller than the fourth preset range, closing part of the evaporation coil.
8. An air conditioning dehumidification method according to claims 4 to 7, wherein after said performing of said current dehumidification scheme, said method further comprises:
and when the air temperature in the current environment is less than a preset temperature threshold value and the duration time exceeds a preset duration time, executing a thermal compensation scheme in the current dehumidification scheme.
9. The air conditioner dehumidification method of claim 8, wherein the determining of the current dehumidification scheme according to the heat load, the humidity load, the preset temperature and humidity control accuracy requirement of the current environment and a dehumidification scheme recommendation table further comprises:
when the current environment has a second-level or third-level heat load and the preset temperature and humidity control precision requirement is first-level precision or second-level precision, determining that the current dehumidification scheme at least comprises auxiliary electric heating in the thermal compensation scheme;
and when the current environment has a periodic heat and humidity load, the preset temperature and humidity control precision requirement is three-level precision, and energy conservation is required, determining that the current dehumidification scheme at least comprises hot gas bypass in the thermal compensation scheme.
10. An air conditioning dehumidification apparatus, comprising:
the determining module is used for determining a current dehumidification scheme and a thermal compensation scheme according to the heat load, the humidity load, the preset temperature and humidity control precision requirement and the dehumidification scheme recommendation table;
an execution module to execute the current dehumidification scheme and the thermal compensation scheme.
11. A computer-readable storage medium, storing a computer program which, when executed by a processor, causes the processor to carry out the steps of the method according to any one of claims 1 to 9.
12. An air conditioner comprising a memory and a processor, the memory storing a computer program which, when executed by the processor, causes the processor to perform the steps of the method according to any one of claims 1 to 9.
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