CN115264764A

CN115264764A - Air conditioner, dehumidification method thereof and computer readable storage medium

Info

Publication number: CN115264764A
Application number: CN202210794000.8A
Authority: CN
Inventors: 杨瑞; 刘健; 杨新国; 代文杰
Original assignee: Guangdong TCL Intelligent HVAC Equipment Co Ltd
Current assignee: Guangdong TCL Intelligent HVAC Equipment Co Ltd
Priority date: 2022-07-05
Filing date: 2022-07-05
Publication date: 2022-11-01

Abstract

The application provides an air conditioner, a dehumidification method thereof and a computer readable storage medium, wherein the method comprises the following steps: determining the superheat degree of an inner disc of the evaporator, wherein the superheat degree of the inner disc is related to the temperature of an inner coil pipe of the evaporator; and according to the superheat degree of the inner disc, controlling the opening of the first expansion valve to change the temperature of the inner coil of the evaporator for dehumidification. This application is through the aperture size of the first expansion valve of inner disc superheat degree control, the aperture size of first expansion valve changes the back for the flow that flows in the evaporator refrigerant obtains changing, and different heats are taken away in the evaporation to the refrigerant of different flows in the evaporator, thereby directly changed the interior coil pipe temperature of evaporator, realized the direct control to interior coil pipe temperature at the dehumidification in-process, promoted air conditioner dehumidification effect and user experience.

Description

Air conditioner, dehumidification method thereof and computer readable storage medium

Technical Field

The application relates to the technical field of air conditioners, in particular to an air conditioner, a dehumidification method thereof and a computer readable storage medium.

Background

At present, an air conditioner generally has a dehumidification mode and an air supply mode besides a conventional refrigeration mode and a heating mode; the dehumidification mode is similar to the cooling mode in control manner, and performs dehumidification by changing the frequency of the compressor and the rotating speed of the indoor fan, for example, when the indoor environment humidity is greater than the target humidity, the operating frequency of the compressor is increased to reduce the indoor environment humidity to achieve dehumidification. However, the dehumidification control scheme for changing the frequency of the compressor cannot directly control the temperature of the inner coil, and the phenomenon of undesirable dehumidification effect is easy to occur in the dehumidification process.

Disclosure of Invention

The application provides an air conditioner, a dehumidification method thereof and a computer readable storage medium, and aims to solve the technical problem that the dehumidification effect is not ideal in the dehumidification process of the existing air conditioner.

In a first aspect, the present application provides a dehumidification method for an air conditioner, the air conditioner including an evaporator and a condenser, a first expansion valve being disposed on a pipeline connecting an inlet of the evaporator and an outlet of the condenser, the method including:

determining the superheat degree of an inner disc of the evaporator, wherein the superheat degree of the inner disc is related to the temperature of an inner coil pipe of the evaporator;

and according to the superheat degree of the inner disc, controlling the opening of the first expansion valve to change the temperature of the inner coil of the evaporator for dehumidification.

In some embodiments, the step of determining the superheat of the inner disk of the evaporator comprises:

acquiring the temperature of an inner coil of an evaporator and the indoor dew point temperature;

and determining the superheat degree of the inner coil according to the temperature of the inner coil and the dew point temperature.

acquiring the temperature of an inner coil of an evaporator and the low-pressure saturation temperature of a refrigerant;

and determining the superheat degree of the inner coil according to the temperature of the inner coil and the low-pressure saturation temperature.

acquiring the temperature of an inner coil of an evaporator and the anti-freezing protection temperature of a refrigerant;

and determining the superheat degree of the inner coil according to the temperature of the inner coil and the anti-freezing protection temperature.

In some embodiments, the step of controlling the opening size of the first expansion valve according to the superheat degree of the inner disc comprises:

when the superheat degree of the inner disc is smaller than a first preset value, the opening degree of the first expansion valve is reduced;

when the superheat degree of the inner disc is larger than a second preset value, the opening degree of the first expansion valve is increased;

and when the superheat degree of the inner disc is greater than or equal to a first preset value and less than or equal to a second preset value, keeping the opening degree of the first expansion valve unchanged.

In some embodiments, the line connecting the evaporator outlet to the condenser inlet is provided with a compressor and a second expansion valve adjacent to the evaporator outlet, the method further comprising:

determining the exhaust superheat degree of the compressor;

the opening degree of the second expansion valve is controlled according to the exhaust superheat degree of the compressor.

In some embodiments, the step of determining the discharge superheat of the compressor comprises:

acquiring the exhaust temperature and the exhaust pressure of a compressor;

determining a corresponding exhaust saturation temperature according to the exhaust pressure;

and determining the superheat degree of the exhaust gas according to the exhaust gas temperature and the exhaust gas saturation temperature.

In some embodiments, the controlling the opening size of the second expansion valve according to the discharge superheat of the compressor comprises:

when the exhaust superheat degree is smaller than a third preset value, reducing the opening degree of the second expansion valve;

when the exhaust superheat degree is larger than a fourth preset value, the opening degree of the second expansion valve is increased;

and when the exhaust superheat degree is greater than or equal to a third preset value and less than or equal to a fourth preset value, keeping the opening degree of the second expansion valve unchanged.

In a second aspect, the present application provides an air conditioner comprising:

one or more processors;

a memory; and

one or more application programs, wherein the one or more application programs are stored in the memory and configured to be executed by the processor to implement the dehumidification method as described in the first aspect.

In a third aspect, the present application provides a computer readable storage medium having a computer program stored thereon, the computer program being loaded by a processor to perform the steps of the dehumidification method according to the first aspect.

This application is through the aperture size of inner disc superheat degree control first expansion valve, and the aperture size of first expansion valve changes the back for the flow that flows in the evaporator refrigerant obtains changing, and different heats are taken away in the evaporation to the refrigerant of different flows in the evaporator, thereby directly changed the inner coil pipe temperature of evaporator, realized the direct control to the inner coil pipe temperature at the dehumidification in-process, promoted air conditioner dehumidification effect and user experience.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural view of an air conditioner provided in an embodiment of the present application;

FIG. 2 is a schematic flow chart of a dehumidification method of an air conditioner provided in an embodiment of the present application;

FIG. 3 is a schematic flow chart of the method for controlling the opening of the second expansion valve provided in the embodiment of the present application;

FIG. 4 is a schematic flow chart of the determination of the degree of superheat of the exhaust gas provided in the embodiment of the present application;

fig. 5 is a schematic structural diagram of an air conditioner provided in an embodiment of the present application.

The system comprises an evaporator 10, a condenser 20, a first expansion valve 30, a compressor 40, a second expansion valve 50, a four-way valve 60, a temperature and humidity sensor 70, an air suction temperature sensing bulb 80 and a low pressure sensor 90.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, 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.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In this application, the word "exemplary" is used to mean "serving as an example, instance, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the invention. In the following description, details are set forth for the purpose of explanation. It will be apparent to one of ordinary skill in the art that the present invention may be practiced without these specific details. In other instances, well-known structures and processes are not shown in detail to avoid obscuring the description of the invention with unnecessary detail. Thus, the present invention is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.

Embodiments of the present application provide an air conditioner, a dehumidification method thereof, and a computer-readable storage medium, which are described in detail below.

First, referring to fig. 1, fig. 1 shows a schematic structural diagram of an air conditioner in an embodiment of the present application, wherein the air conditioner includes an evaporator 10, a condenser 20, and a compressor 40, a first expansion valve 30 is disposed on a pipeline connecting an inlet of the evaporator 10 and an outlet of the condenser 20, and arrows shown in the diagram indicate a flow direction of a refrigerant in a cooling mode.

The evaporator 10 and the condenser 20 are respectively located indoors and outdoors, when the air conditioner performs refrigeration, the refrigerant flowing in the evaporator 10 evaporates to absorb heat, so that the temperature of the inner coil pipe is reduced, heat exchange is performed on indoor air, the refrigerant flowing in the condenser 20 liquefies to release heat, so that the temperature of the outer coil pipe is increased, and heat exchange is performed on the outer coil pipe and the outdoor air; when the air conditioner heats, the refrigerant flowing in the evaporator 10 is liquefied to release heat, thereby raising the temperature of the inner coil and heating the indoor air, and the refrigerant flowing in the condenser 20 evaporates to absorb heat, thereby lowering the temperature of the outer coil and exchanging heat with the outdoor air.

The compressor 40 compresses a driving refrigerant in a pipe of the air conditioner so as to draw the refrigerant from a low pressure region and compress the refrigerant to a high pressure region to be cooled and condensed, and radiates heat to an indoor side when heating is required and to an outdoor side when cooling is required through the evaporator 10 and the condenser 20. Illustratively, the compressor 40 may be a reciprocating compressor, a rotary compressor, such as a screw compressor, a centrifugal compressor, or the like.

The first expansion valve 30 is used for controlling the temperature of the inner coil of the evaporator 10 according to the superheat degree of the inner coil, after the opening degree of the first expansion valve 30 is changed, the flow of the refrigerant flowing into the evaporator 10 is changed, different heat is taken away by the refrigerant with different flow in the evaporator 10 through evaporation, the temperature of the inner coil of the evaporator 10 is directly changed, the direct control of the temperature of the inner coil is realized in the dehumidification process, and the dehumidification effect and the user experience of the air conditioner are improved.

It should be noted that the superheat degree of the inner disc can be calculated in various ways, for example, the difference between the temperature of the inner coil and the indoor dew point temperature is the superheat degree of the inner disc; for another example, the difference between the temperature of the inner coil and the low-pressure saturation temperature of the refrigerant is used as the superheat degree of the inner coil; for another example, the difference between the temperature of the inner coil and the temperature of the anti-freeze protection is taken as the inner coil superheat.

Since the first expansion valve 30 directly controls the temperature of the inner coil, although air dehumidification is facilitated, there may be a phenomenon that the temperature of the inner coil is too low to cause incomplete evaporation of the refrigerant, so that the liquid suction of the compressor 40 finally causes a liquid impact phenomenon to the compressor 40 and shortens the service life thereof.

To this end, in some embodiments of the present application, the air conditioner further includes a second expansion valve 50, the second expansion valve 50 is disposed adjacent to an outlet of the evaporator 10, and the second expansion valve 50 changes an opening degree thereof according to a discharge superheat degree of the compressor 40, wherein the discharge superheat degree is calculated by a difference between a saturation temperature corresponding to a discharge pressure of the compressor 40 and a discharge temperature. As an example, when the discharge superheat degree of the compressor 40 is too small, which means that the refrigerant discharged from the compressor 40 may contain liquid, the flow rate of the refrigerant is reduced by reducing the opening degree of the second expansion valve 50, so that the residence time of the refrigerant in the evaporator 10 is prolonged, thereby preventing the refrigerant from being incompletely evaporated and having liquid.

It should be understood that the above description of the air conditioner is only for clarity of the verification process of the present application, and in fact, the air conditioner may also include other components, for example, the air conditioner may further include a liquid storage tank for storing refrigerant, a four-way valve 60 for controlling the air conditioner to switch heating and cooling modes, etc.; for another example, the air conditioner may further include a temperature and humidity sensor 70, an air intake bulb 80, a low pressure sensor 90, and other detecting components.

With continuing reference to fig. 2, fig. 2 is a schematic flow chart of a dehumidification method of an air conditioner according to an embodiment of the present application, where the dehumidification method is the air conditioner according to any of the embodiments, where the dehumidification method of the air conditioner includes:

step S210, determining the superheat degree of an inner disc of the evaporator 10;

specifically, the inner pan superheat is the superheat associated with the temperature of the inner coil of the evaporator 10. In some embodiments of the present application, the step of determining the superheat of the inner disk of the evaporator 10 comprises:

step S211, acquiring the temperature of the inner coil of the evaporator 10 and the indoor dew point temperature;

The temperature of the inner coil can be measured by the inner coil temperature sensing bulb, and the dew point temperature can be measured by the temperature and humidity sensor 70. When the temperature of the inner coil and the dew point temperature are obtained, the difference between the temperature of the inner coil and the dew point temperature can be used as the superheat degree of the inner coil, for example, when the temperature of the inner coil is 10 ℃ and the dew point temperature is 19 ℃, the superheat degree of the inner coil is 9 ℃.

It should be noted that, because the superheat degree of the inner disc is related to the temperature of the inner coil and the dew point temperature, and the dew point temperature is usually close to the indoor temperature, so that dehumidification can be realized when the temperature of the inner coil is slightly lower than the dew point temperature, and therefore dehumidification is performed by adopting the superheat degree of the inner disc related to the temperature of the inner coil and the dew point temperature, and the dehumidification mode can also realize an indoor constant-temperature dehumidification mode while ensuring the dehumidification effect, thereby avoiding the phenomenon of great reduction of the indoor temperature.

In some embodiments of the present application, the step of determining the superheat of the inner disk of the evaporator 10 comprises:

step S212, acquiring the temperature of the inner coil of the evaporator 10 and the low-pressure saturation temperature of the refrigerant;

Wherein the low pressure saturation temperature of the refrigerant can be obtained by referring to the data table after detecting the pressure of the evaporator 10. When the temperature of the inner coil and the low-pressure saturation temperature are obtained, the difference between the temperature of the inner coil and the low-pressure saturation temperature can be used as the superheat degree of the inner coil, for example, when the temperature of the inner coil is 10 ℃ and the low-pressure saturation temperature is 5 ℃, the superheat degree of the inner coil is 5 ℃.

It should be noted that, because the superheat degree of the inner disc is related to the temperature of the inner coil and the low-pressure saturation temperature of the refrigerant, and the temperature difference between the low-pressure saturation temperature of the refrigerant and the indoor temperature is usually large, and the temperature difference between the temperature of the inner coil and the indoor temperature is also large under the condition that the superheat degree of the inner disc is fixed, the superheat degree of the inner disc related to the temperature of the inner coil and the low-pressure saturation temperature is adopted for dehumidification, so that the temperature of the inner coil can be greatly reduced, and the dehumidification speed is increased to realize the rapid dehumidification mode.

step S213, obtaining the temperature of the inner coil of the evaporator 10 and the anti-freezing protection temperature of the refrigerant;

Wherein the anti-freezing protection temperature of the refrigerant can be obtained by inquiring the parameters of the refrigerant in the storage device. When the temperature of the inner coil and the anti-freezing protection temperature are obtained, the difference between the temperature of the inner coil and the anti-freezing protection temperature can be used as the superheat degree of the inner coil, for example, when the temperature of the inner coil is 10 ℃, the anti-freezing protection temperature is-5 ℃, and the superheat degree of the inner coil is 15 ℃.

It should be noted that, since the superheat degree of the inner disc is related to the temperature of the inner coil and the anti-freezing protection temperature of the refrigerant, and the anti-freezing protection temperature of the refrigerant is usually much lower than the indoor temperature, and the temperature of the inner coil is also much lower than the indoor temperature under the condition of a certain superheat degree of the inner disc, the superheat degree of the inner disc related to the temperature of the inner coil and the anti-freezing protection temperature is adopted to perform dehumidification, so that the temperature of the inner coil can be greatly reduced, the dehumidification speed is increased, and the ultra-fast dehumidification mode is realized.

In step S220, the opening of the first expansion valve 30 is controlled according to the superheat degree of the inner coil, so as to change the temperature of the inner coil of the evaporator 10 for dehumidification.

After the superheat degree of the inner coil is determined, the opening degree of the first expansion valve 30 can be controlled to change the temperature of the inner coil of the evaporator 10 for dehumidification. In some embodiments of the present application, the step of controlling the opening size of the first expansion valve 30 according to the superheat degree of the inner disc includes:

step S221, when the superheat degree of the inner disc is smaller than a first preset value, reducing the opening degree of the first expansion valve 30;

step S222, when the superheat degree of the inner disc is larger than a second preset value, the opening degree of the first expansion valve 30 is increased;

in step S223, when the degree of superheat of the inner disc is greater than or equal to the first preset value and less than or equal to the second preset value, the opening degree of the first expansion valve 30 is maintained.

The first preset value and the second preset value may be set according to experience values of a person skilled in the art, or may be determined according to a large amount of experimental test data, which is not limited herein. In some embodiments of the present application, the opening degree change value of the first expansion valve 30 may be calculated by the inner pan superheat degree, the first preset value, and/or the second preset value, for example, the opening degree change value of the first expansion valve 30 may be calculated according to the following formula:

D1＝S-(S1+S2)/2

wherein D1 is an opening degree change value of the first expansion valve 30, S is an inner disc superheat degree, S1 is a first preset value, and S2 is a second preset value. It is understood that when D1 is less than 0, the opening degree of the first expansion valve 30 is decreased by the absolute value of D1, and when D1 is greater than 0, the opening degree of the first expansion valve 30 is increased by the absolute value of D1. In some embodiments of the present application, the opening degree of the first expansion valve 30 is adjusted every 90s in a range of a minimum opening degree of 88b to 480b.

It can be understood that, for some embodiments of the present application, for example, for the embodiment in which the degree of superheat of the inner pan is associated with the temperature of the inner coil and the dew point temperature, for example, for the embodiment in which the degree of superheat of the inner pan is associated with the temperature of the inner coil and the low-pressure saturation temperature of the refrigerant, for example, for the embodiment in which the degree of superheat of the inner pan is associated with the temperature of the inner coil and the anti-freezing protection temperature of the refrigerant, the first preset value and the second preset value of the different embodiments are different from each other, so as to be adapted to the constant-temperature dehumidification mode, the fast dehumidification mode and the extreme dehumidification mode, and provide multiple dehumidification modes.

This application is through the aperture size of inner disc superheat degree control first expansion valve 30, the aperture size of first expansion valve 30 changes the back, make the flow that flows in the evaporimeter 10 refrigerant obtain changing, different heats are taken away in the evaporation of the refrigerant of different flows in evaporimeter 10, thereby directly changed the interior coil pipe temperature of evaporimeter 10, because inner disc superheat degree and interior coil pipe temperature are relevant, realized the direct control to interior coil pipe temperature at the dehumidification in-process, air conditioner dehumidification effect and user experience have been promoted.

Since the first expansion valve 30 directly controls the temperature of the inner coil, although it is beneficial for air dehumidification, there may be a phenomenon that the temperature of the inner coil is too low to cause incomplete evaporation of the refrigerant, for example, for the embodiment that the superheat degree of the inner coil is related to the temperature of the inner coil and the dew point temperature, and for example, for the embodiment that the superheat degree of the inner coil is related to the temperature of the inner coil and the anti-freezing protection temperature of the refrigerant, so that the liquid sucked by the compressor 40 finally causes the liquid impact phenomenon of the compressor 40 and shortens the service life thereof.

To this end, referring to fig. 3, fig. 3 shows a schematic flowchart of an embodiment of the present application for controlling the opening degree of the second expansion valve 50, in some embodiments of the present application, the air conditioner further includes the second expansion valve 50, the second expansion valve 50 is disposed adjacent to the outlet of the evaporator 10, and the dehumidification method of the air conditioner further includes:

step S310, determining the exhaust superheat degree of the compressor 40;

the discharge superheat of the compressor 40 refers to the superheat associated with the discharge temperature of the compressor 40. In some embodiments of the present application, referring to FIG. 4, FIG. 4 shows a schematic flow chart of the present application embodiment for determining exhaust superheat, the step of determining exhaust superheat comprising:

step S410, acquiring the exhaust temperature and the exhaust pressure of the compressor 40;

step S420, determining a corresponding exhaust saturation temperature according to the exhaust pressure;

and step S430, determining the exhaust superheat degree according to the exhaust temperature and the exhaust saturation temperature.

The discharge temperature of the compressor 40 may be measured by the suction bulb 80, the discharge pressure of the compressor 40 may be measured by the low pressure sensor 90, and the discharge saturation temperature may be obtained by querying a corresponding data table according to the discharge pressure. When the discharge temperature and the discharge saturation temperature are obtained, the difference between the discharge temperature and the discharge saturation temperature is used as the discharge superheat, for example, when the discharge temperature of the compressor 40 is 40 ℃ and the discharge saturation temperature of the compressor 40 is 35 ℃, the discharge superheat is 5 ℃.

In step S320, the opening degree of the second expansion valve 50 is controlled according to the degree of superheat of the discharge gas of the compressor 40.

After the discharge superheat of the compressor 40 is determined, the opening degree of the second expansion valve 50 may be controlled. In some embodiments of the present application, the controlling the opening size of the second expansion valve 50 according to the discharge superheat of the compressor 40 includes:

step S321, when the exhaust superheat degree is less than a third preset value, reducing the opening degree of the second expansion valve 50;

step S322, when the exhaust superheat degree is larger than a fourth preset value, increasing the opening degree of the second expansion valve 50;

in step S323, when the degree of superheat of the exhaust gas is greater than or equal to the third preset value and less than or equal to the fourth preset value, the opening degree of the second expansion valve 50 is kept unchanged.

The third preset value and the fourth preset value may be set according to experience values of those skilled in the art, or may be determined according to a large amount of experimental test data, which is not limited herein. When the discharge superheat degree of the compressor 40 is too small (for example, less than the third preset value), which indicates that the refrigerant discharged from the compressor 40 may contain liquid, the flow rate of the refrigerant is reduced by reducing the opening degree of the second expansion valve 50, so that the residence time of the refrigerant in the evaporator 10 is prolonged, and the phenomenon that the refrigerant is not completely evaporated and liquid exists is avoided; when the discharge superheat degree of the compressor 40 is too large (for example, greater than the fourth preset value), the opening degree of the second expansion valve 50 may be appropriately increased, so as to accelerate the refrigerant circulation and improve the cooling and dehumidifying effects.

In some embodiments of the present application, the opening degree change value of the second expansion valve 50 may be calculated by the degree of superheat of the exhaust gas, a third preset value, and/or a fourth preset value, for example, the opening degree change value of the second expansion valve 50 may be calculated according to the following formula:

D2＝(s-(S3+S4)/2)*2

where D2 is an opening degree change value of the second expansion valve 50, S is an exhaust superheat degree, S1 is a third preset value, and S2 is a fourth preset value. It is understood that when D2 is less than 0, the opening degree of the second expansion valve 50 is decreased by the absolute value of D2, and when D2 is greater than 0, the opening degree of the second expansion valve 50 is increased by the absolute value of D2. In some embodiments of the present application, the opening degree of the second expansion valve 50 is adjusted every 30s in a range of a minimum opening degree of 88b to 480b.

It should be noted that the above-mentioned contents related to the dehumidification method of the air conditioner are intended to clearly illustrate the implementation verification process of the present application, and those skilled in the art can make equivalent modifications under the guidance of the present application, such as changing the calculation formula corresponding to the opening degree change value of the first expansion valve 30, and changing the calculation formula corresponding to the opening degree change value of the second expansion valve 50.

Further, in order to better implement the dehumidification method in the embodiment of the present application, on the basis of the dehumidification method, an embodiment of the present application further provides an air conditioner, where the air conditioner includes:

one or more processors;

a memory; and

one or more application programs, wherein the one or more application programs are stored in the memory and configured to be executed by the processor to perform the steps of the dehumidification method of any one of the embodiments.

As shown in fig. 5, it shows a schematic structural diagram of an air conditioner according to an embodiment of the present application, specifically:

the air conditioner may include a processor 510 of one or more processing cores, a memory 520 of one or more computer-readable storage media. Those skilled in the art will appreciate that the configuration shown in FIG. 5 does not constitute a limitation of the dehumidification system, and may include more or fewer components than shown, or some components in combination, or a different arrangement of components. Wherein:

the processor 510 is a control center of the system, connects various parts of the entire system using various interfaces and lines, performs various functions of the system and processes data by operating or executing software programs and/or modules stored in the memory 520 and calling data stored in the memory 520, thereby monitoring the system as a whole. Alternatively, processor 510 may include one or more processing cores; the Processor 510 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. The general purpose processor may be a microprocessor or the processor may be any conventional processor or the like, and preferably the processor 510 may integrate an application processor, which handles primarily the operating system, user interfaces, application programs, etc., and a modem processor, which handles primarily wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 510.

The memory 520 may be used to store software programs and modules, and the processor 510 executes various functional applications and data processing by operating the software programs and modules stored in the memory 520. The memory 520 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data created according to the use of the air conditioner, and the like. Further, the memory 520 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device. Accordingly, the memory 520 may also include a memory controller to provide the processor 510 with access to the memory 520.

Although not shown, the air conditioner may further include a display unit and the like, which will not be described in detail herein. Specifically, in this embodiment, the processor 510 in the air conditioner loads the executable file corresponding to the process of one or more application programs into the memory 520 according to the following instructions, and the processor 510 runs the application programs stored in the memory 520, thereby implementing various functions as follows:

determining the superheat degree of an inner disc of the evaporator 10, wherein the superheat degree of the inner disc is related to the temperature of an inner coil of the evaporator 10;

the opening of the first expansion valve 30 is controlled according to the degree of superheat of the inner coil, so as to change the temperature of the inner coil of the evaporator 10 for dehumidification.

To this end, an embodiment of the present invention provides a computer-readable storage medium, which may include: read Only Memory (ROM), random Access Memory (RAM), magnetic or optical disk, and the like. Stored thereon, is a computer program, which is loaded by a processor to perform the steps of any of the dehumidification methods provided by the embodiments of the present invention. For example, the computer program may be loaded by a processor to perform the steps of:

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and parts that are not described in detail in a certain embodiment may refer to the above detailed descriptions of other embodiments, which are not described herein again.

Having thus described the basic concept, it will be apparent to those skilled in the art that the foregoing detailed disclosure is to be considered as illustrative only and not limiting of the application. Various modifications, improvements and adaptations to the present application may occur to those skilled in the art, although not explicitly described herein. Such modifications, improvements and adaptations are proposed in the present application and thus fall within the spirit and scope of the exemplary embodiments of the present application.

Also, this application uses specific language to describe embodiments of the application. Reference throughout this specification to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic described in connection with at least one embodiment of the present application is included in at least one embodiment of the present application. Therefore, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, some features, structures, or characteristics of one or more embodiments of the present application may be combined as appropriate.

Accordingly, aspects of the present application may be embodied entirely in hardware, entirely in software (including firmware, resident software, micro-code, etc.) or in a combination of hardware and software. The above hardware or software may be referred to as "data block," module, "" engine, "" unit, "" component, "or" system. Furthermore, aspects of the present application may be represented as a computer product, including computer readable program code, embodied in one or more computer readable media.

The computer storage medium may comprise a propagated data signal with the computer program code embodied therewith, for example, on baseband or as part of a carrier wave. The propagated signal may take any of a variety of forms, including electromagnetic, optical, and the like, or any suitable combination. A computer storage medium may be any computer-readable medium that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code located on a computer storage medium may be propagated over any suitable medium, including radio, cable, fiber optic cable, RF, or the like, or any combination of the preceding.

Computer program code required for the operation of various portions of the present application may be written in any one or more programming languages, including an object oriented programming language such as Java, scala, smalltalk, eiffel, JADE, emerald, C + +, C #, VB.NET, python, and the like, a conventional programming language such as C, visual Basic, fortran 2003, perl, COBOL 2002, PHP, ABAP, a dynamic programming language such as Python, ruby, and Groovy, or other programming languages, and the like. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the latter scenario, the remote computer may be connected to the user's computer through any network format, such as a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet), or in a cloud computing environment, or as a service, such as a software as a service (SaaS).

Additionally, the order in which elements and sequences of the processes described herein are processed, the use of alphanumeric characters, or the use of other designations, is not intended to limit the order of the processes and methods described herein, unless explicitly claimed. While various presently contemplated embodiments of the invention have been discussed in the foregoing disclosure by way of example, it is to be understood that such detail is solely for that purpose and that the appended claims are not limited to the disclosed embodiments, but, on the contrary, are intended to cover all modifications and equivalent arrangements that are within the spirit and scope of the embodiments herein. For example, although the system components described above may be implemented by hardware devices, they may also be implemented by software-only solutions, such as installing the described system on an existing server or mobile device.

Similarly, it should be noted that in the preceding description of embodiments of the application, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure aiding in the understanding of one or more of the embodiments. This method of disclosure, however, is not intended to imply that more features are required than are expressly recited in the claims. Indeed, the embodiments may be characterized as having less than all of the features of a single embodiment disclosed above.

The air conditioner, the dehumidification method thereof and the computer readable storage medium provided by the embodiments of the present application are described in detail above, and the principles and embodiments of the present invention are explained herein by applying specific examples, and the description of the embodiments is only used to help understanding the method and the core idea of the present invention; meanwhile, for those skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. A dehumidification method of an air conditioner is characterized in that the air conditioner comprises an evaporator and a condenser, a first expansion valve is arranged on a pipeline connecting an inlet of the evaporator and an outlet of the condenser, and the method comprises the following steps:

determining the superheat degree of an inner disc of the evaporator, wherein the superheat degree of the inner disc is related to the temperature of an inner coil of the evaporator;

and controlling the opening size of the first expansion valve according to the superheat degree of the inner coil so as to change the temperature of the inner coil of the evaporator for dehumidification.

2. The dehumidifying method of an air conditioner according to claim 1, wherein the step of determining the degree of superheat of the inner panel of the evaporator comprises:

acquiring the temperature of an inner coil of the evaporator and the indoor dew point temperature;

3. The dehumidifying method of an air conditioner according to claim 1, wherein the step of determining the degree of superheat of the inner panel of the evaporator comprises:

acquiring the temperature of an inner coil of the evaporator and the low-pressure saturation temperature of the refrigerant;

4. The dehumidifying method of an air conditioner according to claim 1, wherein the step of determining the degree of superheat of the inner panel of the evaporator comprises:

acquiring the temperature of an inner coil of the evaporator and the anti-freezing protection temperature of the refrigerant;

5. The dehumidifying method of an air conditioner according to any one of claims 1 to 4, wherein the step of controlling the size of the opening degree of the first expansion valve according to the degree of superheat of the inner panel comprises:

and when the superheat degree of the inner disc is greater than or equal to the first preset value and less than or equal to a second preset value, keeping the opening degree of the first expansion valve unchanged.

6. A dehumidifying method of an air conditioner as claimed in claim 1, wherein a compressor and a second expansion valve are provided on a line connecting an outlet of the evaporator and an inlet of the condenser, the method further comprising:

determining the discharge superheat degree of the compressor;

and controlling the opening size of the second expansion valve according to the exhaust superheat degree of the compressor.

7. A dehumidification method according to claim 6, wherein said step of determining a discharge superheat of said compressor comprises:

acquiring the exhaust temperature and the exhaust pressure of the compressor;

and determining the exhaust superheat degree according to the exhaust temperature and the exhaust saturation temperature.

8. The dehumidification method according to claim 6, wherein said controlling the opening size of said second expansion valve according to the discharge superheat of said compressor comprises:

when the exhaust superheat degree is larger than a fourth preset value, increasing the opening degree of the second expansion valve;

and when the exhaust superheat degree is greater than or equal to the third preset value and less than or equal to a fourth preset value, keeping the opening degree of the second expansion valve unchanged.

9. An air conditioner, comprising:

one or more processors;

a memory; and

one or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the processor to implement the dehumidification method of any one of claims 1 to 8.

10. A computer-readable storage medium, having stored thereon a computer program which is loaded by a processor for performing the steps of the dehumidification method according to any one of claims 1 to 8.