CN113483457B

CN113483457B - Air conditioner operation control method, air conditioner and readable storage medium

Info

Publication number: CN113483457B
Application number: CN202110767220.7A
Authority: CN
Inventors: 王知恒; 游剑波; 李超; 胡立志
Original assignee: Ningbo Aux Electric Co Ltd; Zhuhai Tuoxin Technology Co Ltd
Current assignee: Ningbo Aux Electric Co Ltd
Priority date: 2021-07-07
Filing date: 2021-07-07
Publication date: 2022-07-19
Anticipated expiration: 2041-07-07
Also published as: CN113483457A

Abstract

The invention provides an air conditioner operation control method, an air conditioner and a readable storage medium, wherein the air conditioner operation control method comprises the steps of S1, obtaining the concentration C of a refrigerant in an outer shell₁Internal temperature T in the outer casing₁(ii) a S2, when C₁Greater than a first predetermined concentration C_{Preparation 1}And T is₁And when the preset conditions are met, the air conditioner responds by controlling the frequency of the compressor, the rotating speed of the fan and the opening degree of the electronic expansion valve. The air conditioner operation control method judges different control levels according to whether the temperature in the outer machine shell and the refrigerant concentration meet preset conditions or not, and then performs control on frequency/wind speed and valve steps in a targeted manner, when the concentration is higher, the lower the frequency and the number of expansion valve steps is, the higher the wind speed is, the system load is reduced, the ambient wind speed flow is improved, the refrigerant concentration and the temperature in the shell are reduced, and the operation safety is improved.

Description

Air conditioner operation control method, air conditioner and readable storage medium

Technical Field

The invention relates to the technical field of air conditioners, in particular to an air conditioner operation control method, an air conditioner and a readable storage medium.

Background

With the great improvement of the living standard of people, the air conditioner is gradually one of the necessary electrical appliances for life, and the operation safety of the air conditioner is gradually one of the main factors influencing the competitiveness of the product. Propane (R290) and the like are one of the commonly used air-conditioning refrigerants at present due to the advantages of economy, environmental protection, low freezing point, large latent heat of evaporation and no toxicity; however, compared with other refrigerants, R290 is flammable and explosive, and is extremely flammable and even explosive when encountering a fire source, and can seriously harm the personal safety of users.

During the installation and use of the air conditioner, the pipeline may be damaged due to poor sealing performance, bending, long-term corrosion or other external insurmountable forces, and the like, so that the air conditioner refrigerant leaks. Especially, in the relatively closed outdoor unit formed by the casing and the air outlet grille, the leaked refrigerant is easy to collect and difficult to discharge; when the concentration of R290 reaches a certain level, if strong electric components such as relays, switches or windings are ignited, the refrigerant agent is ignited and even explodes, so that the outdoor unit has a certain potential safety hazard.

In view of the above, the present invention is particularly proposed.

Disclosure of Invention

The invention solves the problem of potential safety hazard of how to lead refrigerant such as R290 to leak and gather in a relatively closed outer machine to be easy to ignite and even explode.

In order to solve the above problems, the present invention provides an air conditioner operation control method, including S1, obtaining a refrigerant concentration C in an outer casing₁Internal temperature T of outer casing₁(ii) a S2, when C₁Greater than a first predetermined concentration C_{Preparation 1}And T₁And when the preset conditions are met, the air conditioner responds by controlling the frequency of the compressor, the rotating speed of the fan and the opening degree of the electronic expansion valve. Preferably, the control valve is an electronic expansion valve.

The possibility of combustion and/or explosion due to the refrigerant, particularly R290, reaching certain concentration and temperature conditions; in order to reduce risks and improve the operation safety of the air conditioner, the temperature inside the shell of the outer shell and the concentration of the refrigerant are judged, and the air conditioner is controlled to operate according to a preset mode if preset conditions are met, so that the system load is reduced, the air flow is accelerated, the flow quantity of the refrigerant is reduced, the increase of the concentration of the refrigerant including R290 is slowed to a certain extent, and the safety is improved.

Preferably, the step S2 includes: s21, judging whether the refrigerant concentration C is₁Greater than a first predetermined concentration C_{Preparation 1}If yes, go to step S22; if not, the air conditioner normally operates; s22 judges whether or not the refrigerant concentration C is₁Greater than the second predetermined concentration C_{Preparation 2}If so, the process proceeds to step S23, otherwise, the internal temperature T is measured₁Greater than a first predetermined temperature T_{Preparation 1}Controlling the air conditioner to enter a first mode; s23, judging whether the internal temperature T is₁Greater than a second predetermined temperature T_{Preparation 2}If yes, controlling the air conditioner to enter a second mode; if not, the air conditioner normally operates, wherein C_{Preliminary 1}＜C_{Preparation 2}，T_{Preparation 1}＞T_{Preparation 2}. The refrigerant concentration is graded and respectively judged, and a lower temperature threshold value is set under higher concentration, so that the interference to the normal operation of the air conditioner is reduced. Preferably, the preset concentration C_PreparingAnd a predetermined temperature T_{Preparation of}There is a negative correlation between, that is: c_{Preliminary 1}At lower time, T_{Preparation 1}Higher; c_{Preparation 2}At higher time, then T_{Preparation 2}And is lower.

Preferably, the first mode is to adjust the compressor frequency to f_minAnd the rotating speed of the fan of the outdoor unit is V to V + V_{Preset 1}Valve steps A to A-A of the expansion valve_{Preset 1}Wherein f is_minIs a lower threshold of frequency, V_{Preset 1}Compensating the threshold for the first wind speed, A_{Preset 1}Is a first valve step threshold; the second mode is to adjust the frequency of the compressor to f_minAnd the rotating speed of the fan of the outdoor unit is V to V + V_{Preset 2}Valve steps A to A-A of the expansion valve_{Preset 2}In which V is_{Preset 2}Compensating the threshold value for the second wind speed, A_{Preset 2}Is the second threshold value.

According to different refrigerant concentrations and temperatures, the rising of the refrigerant concentration and/or temperature in the outer casing is controlled or slowed down by simultaneously adjusting the frequency of the compressor, the rotating speed of the fan and the opening degree of the control valve, and the risk of combustion/explosion is reduced.

Preferably, said C_{Preparation 1}Is 0.7-0.9%, C_{Preparation 2}The value of (a) is 1.1-1.3%; the T is_{Preliminary 1}Is at 75-85 deg.C, T_{Preparation 2}Is at 65-75 ℃, and V is_{Preset 1}Is 50-150rpm, said V_{Preset 2}Is 150-250rpm, said A_{Preset 1}Is 50 to 150pls, wherein A is_{Preset 2}The value of (a) is 150-250 pls. Preferably, said C_{Preparation 1}0.8% of C_{Preparation 2}At 1.2%, the T_{Preliminary 1}At 80 ℃ C, T_{Preparation 2}At 70 ℃ under V_{Preset 1}At 100rpm, said V_{Preset 2}At 200rpm, said A_{Preset 1}Is 100pls, said A_{Preset 2}Is 200 pls.

Preferably, the step S23 includes: s231, judging whether the concentration C of the refrigerant in the outer machine shell is₁Greater than a third predetermined concentration C_{Preparation 3}If yes, go to step S233; if not, go to step S232; s232, judging whether T is available₁Greater than a second predetermined temperature T_{Preparation 2}If yes, controlling the air conditioner to enter a second mode, and if not, normally operating the air conditioner; s233, judging whether T is available₁Third preset temperature T_{Preparation 3}If yes, controlling the air conditioner to enter a third mode; if not, the air conditioner normally operates, wherein C_{Preparation 2}＜C_{Preparation 3}、T_{Preparation 2}＞T_{Preparation 3}. The arrangement finely controls the operation of the air conditioner under the condition of high-concentration refrigerant, thereby further improving the operation safety of the air conditioner. When preset C_{Preparation 1}、C_{Preparation 2}、C_{Preparation 3}At a gradually increasing time, and a predetermined T_{Preparation 1}、T_{Preparation 2}、T_{Preparation 3}It is gradually decreased.

Preferably, the third mode is to adjust the compressor frequency f to 0 and the fan rotation speed V to V of the outdoor unit_maxThe valve step A of the expansion valve is 0pls, where V_maxIs the maximum fan speed. Preferably, said C_{Preparation 3}Is 1.4-1.7%, T_{Preparation 3}The value of (A) is 55-65 ℃.

When the concentration and the temperature of the refrigerant in the outer shell are high, the compressor is stopped, the fan is adjusted to the maximum rotating speed, the control valve is adjusted to 0pls step by step, the flowing of the refrigerant is reduced, the flowing of the surrounding wind speed is increased by the fan, and the operation is recovered when the concentration is reduced to a certain degree, so that the operation safety is improved.

Preferably, the refrigerant concentration C₁And/or the internal temperature T of the outer housing₁The average value is obtained by real-time detection for 50-70 times through a sensor, deep filtering is carried out through a program of an air conditioner, and the average value is obtained after AD conversion. Interference signals in the temperature detection process can be filtered out, and the accuracy of the temperature detection result is further improved.

Compared with the prior art, the air conditioner operation control method has the following beneficial effects: (1) the air conditioner operation control method provided by the invention has the advantages that the operation safety is improved by judging whether the temperature of the outdoor unit and the concentration of the refrigerant, particularly R290, simultaneously meet the preset condition and controlling or slowing down the rise of the concentration of the refrigerant through the air conditioner operation mode; (2) the air conditioner operation control method disclosed by the invention has the advantages of less required hardware, low cost and convenience in implementation.

The invention also provides an air conditioner, which comprises a memory, a processor and a control program which is stored in the memory and can operate the air conditioner on the processor, wherein the control program of the air conditioner realizes the air conditioner operation control method when being executed by the processor. The invention also provides a readable storage medium which stores the control program of the air conditioner, and the control program of the air conditioner realizes the air conditioner operation control method when being executed by a processor. The air conditioner and the readable storage medium have the same beneficial effects as the air conditioner operation control method, and are not described herein again.

Drawings

Fig. 1 is a schematic flow chart of an air conditioner operation control method according to an embodiment of the present invention;

fig. 2 is another schematic flow chart of an air conditioner operation control method according to an embodiment of the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Reference to the description of the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present invention. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.

With the progress of society, the popularization rate of the air conditioner is higher and higher, and the air conditioner gradually enters every family; on one hand, R290, which has good thermophysical properties and environmental friendliness, has gradually become a common air conditioning refrigerant in order to improve the performance of the air conditioner; on the other hand, refrigerant leakage is one of the common problems in the use of air conditioners, such as internal machine evaporator welding leakage, connecting pipe leakage, external machine condenser leakage, leakage caused by four-way valve pipeline breakage, and the like. Because R290 has the characteristics of inflammability and explosiveness, the leakage of the R290 has great potential safety hazard, particularly in a relatively closed outer shell; in this context, it is important to ensure safe operation of the air conditioner.

Example 1

Referring to fig. 1, the present invention provides an air conditioner operation control method including S1, obtaining a refrigerant concentration C in an outer casing₁Internal temperature T of outer casing₁(ii) a The refrigerant concentration C₁And/or the internal temperature T of the outer housing₁The temperature detection method can be used for detecting 50-70 times in real time through the sensor to obtain an average value, performing depth filtering through a program of the air conditioner, obtaining the average value after AD conversion, and further improving the accuracy of a temperature detection result by filtering interference signals in the temperature detection process. The sensor can be arranged at the position of a condenser, a compressor and the like of the outdoor unit. The refrigerant concentration may be a volume concentration or a mass concentration. Preferably, the refrigerant concentration is a volume concentration. Preferably, the sensor is provided with a plurality of sensors which are uniformly distributed in the outer casing. Preferably, the refrigerant is R290; s2, when the refrigerant concentration C₁Greater than a first predetermined concentration C_{Preparation 1}And T₁And when the preset conditions are met, the air conditioner responds by controlling the frequency of the compressor, the rotating speed of the fan and the opening degree of the electronic expansion valve. The possibility of combustion and/or explosion due to the refrigerant, particularly R290, reaching certain concentration and temperature conditions; in order to reduce risks and improve the operation safety of the air conditioner, the temperature and the concentration of a refrigerant in the outer casing are judged, if preset conditions are met, the frequency of a compressor, the rotating speed of a fan and the opening degree of an electronic expansion valve are controlled to respond so as to reduce system load, accelerate air flow, reduce the flow quantity of the refrigerant, slow down the rise of the concentration of the refrigerant including R290 to a certain extent, and improve the safety; according to the method and the device, on the basis of judging only through the leakage concentration of the refrigerant in conventional refrigerant leakage, comprehensive judgment response is further carried out in combination with the temperature, the synergistic effect of the temperature on the further leakage of the refrigerant is avoided, meanwhile, the response is carried out in stages, the risk of burning/explosion is reduced, and the operation safety of the air conditioner is improved.

As an example of the present invention, the step S2 includes: s21, judging whether the refrigerant concentration C is₁Greater than first PresetConcentration C_{Preparation 1}If yes, go to step S22; if not, the refrigerant concentration C₁Not more than a first preset concentration C_{Preparation 1}If so, the air conditioner operates normally; s22, judging whether the refrigerant concentration C is₁Greater than the second predetermined concentration C_{Preparation 2}If yes, the process proceeds to step S23, otherwise, the refrigerant concentration C is set to_{Preparation 1}＜C₁≤C_{Preparation 2}When the internal temperature T of the outer casing is higher than₁Greater than a first predetermined temperature T_{Preparation 1}When the air conditioner is controlled to enter a first mode, the first mode is to adjust the frequency of the compressor to f_minAnd the rotating speed of the fan of the outdoor unit is V to V + V_{Preset 1}Valve steps A to A-A of the expansion valve_{Preset 1}Wherein f is_minThe lower threshold value for the operating frequency of the compressor is determined according to the specific model, for example, 20Hz, 30Hz, 40Hz, V_{Preset 1}Is a first wind speed compensation threshold value with the value range of 50-150rpm, A_{Preset 1}The value range is 50-150pls for the first valve step threshold value; preferably, said V_{Preset 1}At 100rpm, said V_{Preset 2}At 200 rpm; s23, judging whether the internal temperature T is₁Greater than a second predetermined temperature T_{Preparation 2}If yes, controlling the air conditioner to enter a second mode, wherein the second mode is to adjust the frequency of the compressor to f_minAnd the rotating speed of the fan of the outdoor unit is V to V + V_{Preset 2}Valve steps A to A-A of the expansion valve_{Preset 2}In which V is_{Preset 2}A second wind speed compensation threshold value with the value range of 150-250rpm, A_{Preset 2}The value range is 150-250pls for the second threshold value; preferably, A is_{Preset 1}Is 100pls, said A_{Preset 2}Is 200 pls; if not, the air conditioner normally operates, wherein C_{Preliminary 1}＜C_{Preparation 2}，T_{Preliminary 1}＞T_{Preparation 2}. Wherein said C_{Preliminary 1}Is 0.7-0.9%, C_{Preparation 2}The value of (a) is 1.1-1.3%; said T is_{Preliminary 1}Is at a temperature of 75-85 deg.C, T_{Preparation 2}The value of (A) is 65-75 ℃. Preferably, said C_{Preparation 1}0.8% of C_{Preparation 2}1.2% of said T_{Preliminary 1}At 80 ℃ and T_{Preparation 2}The temperature was 70 ℃. Compared with the low temperature, the leaked refrigerant is diffused more quickly under the high temperature condition; by judging the refrigerant concentration separately in different gradesAnd a lower temperature threshold is set under the condition of higher concentration, so that the refrigerant is prevented from being diffused in a large amount in a short time.

Preferably, the S23 includes: s231, judging whether the concentration C of the refrigerant in the outer casing is lower than the preset value₁Greater than a third predetermined concentration C_{Preparation 3}If yes, go to step S233; if not, namely when the detected refrigerant concentration satisfies C_{Preparation 2}＜C₁≤C_{Preparation 3}If yes, go to step S232; s232, judging whether T is available₁Greater than a second predetermined temperature T_{Preparation 2}If yes, controlling the air conditioner to enter a second mode, if not, namely when T is reached₁Not more than second preset temperature T_{Preparation 2}When the air conditioner works, the air conditioner normally runs; s233, judging whether T is available₁Third preset temperature T_{Preparation 3}If yes, controlling the air conditioner to enter a third mode, wherein the third mode is to adjust the frequency f of the compressor to be 0HZ and the rotating speed V to V of the fan of the outdoor unit_maxThe valve step A of the expansion valve is 0pls, where V_maxThe maximum fan rotating speed is determined by a specific machine type and can be 3000rpm, 3500rpm, 4000rpm, 4500rpm and the like; if not, then when T₁Not more than second preset temperature T_{Preparation 3}When the air conditioner is in normal operation, wherein C_{Preparation 2}＜C_{Preparation 3}、T_{Preparation 2}＞T_{Preparation 3}. The arrangement finely controls the operation of the air conditioner under the condition of high-concentration refrigerant, thereby further improving the operation safety of the air conditioner. Said C is_{Preparation 3}Is 1.4-1.7%, T_{Preparation 3}The value of (A) is 55-65 ℃. Preferably, said C_{Preparation 3}Is 1.6%, T_{Preparation 3}The value of (A) is 60 ℃. According to different refrigerant concentrations and temperatures, the frequency of the compressor, the rotating speed of the fan and the opening degree of the control valve are adjusted at the same time, wherein the rising of the refrigerant concentration and/or the temperature in the outer shell can be controlled or slowed down by adjusting the frequency of the compressor and the rotating speed of the fan, and the flow of the refrigerant can be reduced by reducing the opening degree of the control valve such as an electronic expansion valve, so that the risk of combustion/explosion is reduced; reducing the flow also reduces the concentration of refrigerant if leakage occurs in the refrigerant line. Specifically, when the detected refrigerant concentration C_{Preliminary 1}＜C₁＜C_{Preparation 3}While the compressor frequency is directly adjusted to f_minRather than ofGradient changes, like other parameters, are adjusted to minimize refrigerant concentration as quickly as possible.

Example 2

As shown in fig. 2, an air conditioner operation control method includes:

s1, obtaining the concentration C of the refrigerant in the outer casing₁Internal temperature T of outer casing₁(ii) a Preferably, both are sampled in real time and subjected to filter conversion: if the sampling signals are detected by the gas concentration sensor and the ambient temperature sensor respectively and are transmitted back by the main control panel of the outdoor unit, the sampling signals are subjected to deep filtering by a program, and AD conversion is performed after the filtering is finished; preferably, the average value is obtained after 64 times of continuous sampling, and the filtering depth under different conditions can be determined according to the actually required control rate;

s2, judging whether the refrigerant concentration C is₁If yes, go to step S3; if refrigerant concentration C₁When the air conditioner is less than or equal to 0.8 percent, the air conditioner normally operates;

s3, judging whether the refrigerant concentration C is₁If yes, the flow proceeds to step S4, and if the refrigerant concentration is 0.8% < C₁When the internal temperature T is less than or equal to 1.2 percent₁Adjusting the frequency of the compressor to a lower limit threshold value of 20HZ when the temperature is higher than 80 ℃, adjusting the rotating speed V of a fan of the outdoor unit to V +100rpm, and adjusting the valve steps A to A-100pls of an expansion valve;

s4, determining the concentration C of the refrigerant in the outer casing₁If the ratio is more than 1.6%, judging whether T is present₁If the temperature is higher than 60 ℃, adjusting the frequency f of the compressor to be 0HZ and the rotating speed V of the fan of the outdoor unit to the maximum rotating speed V of the fan_maxE.g., 4500rpm, valve step a of the expansion valve is 0 pls; if T is₁Controlling the air conditioner to normally operate at the temperature of less than or equal to 60 ℃;

s5, if the refrigerant concentration is 1.2% < C₁When the concentration is less than or equal to 1.6 percent, judging whether T is present₁If the temperature is higher than 70 ℃, adjusting the frequency of the compressor to be 20HZ as the lower limit threshold, adjusting the rotating speed V of the outdoor unit to V +200rpm, and adjusting the valve steps A to A-200pls of the expansion valve if the temperature is T₁Controlling the air conditioner to normally operate at the temperature of less than or equal to 70 ℃;

S6、。

different control levels are judged by judging the concentration and the temperature of the refrigerant in the outer machine shell, and then the frequency/wind speed and the valve step are controlled in a targeted manner, when the concentration is higher, the lower the frequency and the number of expansion valve steps is, the higher the wind speed is, the system load is reduced, the ambient wind speed flow is improved, the concentration of the refrigerant and the temperature in the shell are reduced, and the operation safety is improved.

The invention also provides an air conditioner, which comprises a memory, a processor and a control program which is stored in the memory and can operate the air conditioner on the processor, wherein the control program of the air conditioner realizes the air conditioner operation control method when being executed by the processor.

The invention also provides a readable storage medium which stores the control program of the air conditioner, and the control program of the air conditioner realizes the air conditioner operation control method when being executed by a processor. The air conditioner and the readable storage medium have the same beneficial effects as the air conditioner operation control method, and are not described herein again. The readable storage medium of the embodiment can reduce the interference to normal operation as much as possible, ensure the operation safety of the air conditioner and has good performance. For the purposes of this description, a "readable storage medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the readable storage medium include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Further, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. An air conditioner operation control method, comprising:

s1, obtaining the concentration C of the refrigerant in the outer casing₁Internal temperature T of outer casing₁；

S2, when C₁Greater than a first predetermined concentration C_{Preparation 1}And T₁When the preset conditions are met, the air conditioner responds by controlling the frequency of the compressor, the rotating speed of the fan and the opening of the control valve;

the step S2 includes:

s21, judging whether the refrigerant concentration C is₁Greater than a first predetermined concentration C_{Preparation 1}If yes, go to step S22; if not, the air conditioner normally operates;

s22, judging whether the refrigerant concentration C is₁Greater than the second predetermined concentration C_{Preparation 2}If yes, the process proceeds to step S23, otherwise, the internal temperature T is measured₁Greater than a first predetermined temperature T_{Preparation 1}Controlling the air conditioner to enter a first mode;

the first mode is to adjust the frequency of the compressor to f_minAnd the rotating speed of the fan of the outdoor unit is V to V + V_{Preset 1}Valve steps A to A-A of the expansion valve_{Preset 1}Wherein f is_minIs a lower threshold of frequency, V_{Preset 1}Compensating the threshold for the first wind speed, A_{Preset 1}Is a first valve step threshold;

s23, judging whether the internal temperature T is₁Greater than a second predetermined temperature T_{Preparation 2}If yes, controlling the air conditioner to enter a second mode; if not, the air conditioner normally operates, wherein C_{Preparation 1}＜C_{Preparation 2}，T_{Preparation 1}＞T_{Preparation 2}；

The second mode is to adjust the frequency of the compressor to f_minAnd the rotating speed of the fan of the outdoor unit is V to V + V_{Preset 2}Valve steps A to A-A of the expansion valve_{Preset 2}In which V is_{Preset 2}Compensating the threshold for the second wind speed, A_{Preset 2}Is the second threshold value.

2. The air conditioner operation control method as claimed in claim 1, wherein C is the maximum value_{Preparation 1}Is 0.7-0.9%, C_{Preparation 2}The value of (A) is 1.1-1.3%; the T is_{Preparation 1}Is at a temperature of 75-85 deg.C, T_{Preparation 2}Is at 65-75 ℃, and V is_{Preset 1}Is 50-150rpm, said V_{Preset 2}Is 150-250rpm, said A_{Preset 1}Is 50 to 150pls, wherein A is_{Preset 2}Is 150-250 pls.

3. An operation control method of an air conditioner according to claim 1, wherein the step S23 includes: s231, judging whether the concentration C of the refrigerant in the outer casing is lower than the preset value₁Greater than a third predetermined concentration C_{Preparation 3}If yes, go to step S233; if not, go to step S232; s232, judging whether T is available₁Greater than a second predetermined temperature T_{Preparation 2}If yes, controlling the air conditioner to enter a second mode, and if not, normally operating the air conditioner; s233, judging whether T is available₁Third preset temperature T_{Preparation 3}If yes, controlling the air conditioner to enter a third mode; if not, the air conditioner normally operates, wherein C_{Preparation 2}＜C_{Preparation 3}、T_{Preparation 2}＞T_{Preparation 3}。

4. The operation control method of claim 3, wherein the third mode is to adjust the frequency f of the compressor to 0Hz and the rotational speed of the outdoor unit's blower to V_maxThe valve step A of the expansion valve is 0pls, where V_maxIs the maximum fan speed.

5. The air conditioner operation control method as claimed in claim 3, wherein C is_{Preparation 3}Is 1.4-1.7%, T_{Preparation 3}The value of (A) is 55-65 ℃.

6. According to the rightThe air conditioner operation control method according to claim 1, wherein the refrigerant concentration C₁And/or the internal temperature T of the outer housing₁The average value is obtained by real-time detection for 50-70 times through a sensor, deep filtering is carried out through a program of an air conditioner, and the average value is obtained after AD conversion.

7. An air conditioner, characterized in that the air conditioner comprises a memory, a processor and a control program stored in the memory and capable of operating the air conditioner at the processor, wherein the control program of the air conditioner realizes the air conditioner operation control method according to any one of claims 1 to 6 when executed by the processor.

8. A readable storage medium storing a control program of the air conditioner, the control program of the air conditioner implementing the air conditioner operation control method according to any one of claims 1 to 6 when executed by a processor.