A desalting mist control method, device and air-cooled air conditioner

Abstract

The present invention discloses a desalting mist control method, device and air-cooled air conditioner. The method comprises: in response to a desalting mist instruction, controlling the opening of a throttling element so that the exhaust temperature reaches a preset temperature, and at the same time turning on the condensing fan to the highest wind speed; after a first preset time, judging whether the heat exchange temperature difference of the condenser meets a preset condition; if so, exiting the desalting mist mode. The present invention increases the exhaust temperature by controlling the throttling element, and after the high-temperature exhaust enters the condenser, the salt mist on the surface of the condenser is crystallized and powdered, and the salt mist is blown away by the condensing fan, thereby purifying the surface of the heat exchanger, realizing automatic removal of salt mist on the surface of the heat exchanger, improving the heat exchange efficiency of the condenser fins, improving the heat exchange performance, improving the anti-corrosion performance of the condenser, increasing the service life of the condenser, improving the reliability of the whole machine, and solving the problem that the heat exchange performance is affected by the salt mist covering the surface of the heat exchanger.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to a desalination mist control method, a desalination mist control device and an air-cooled air conditioner. Background Art

[0002] The finned condenser of the air-cooled air conditioner in the marine field is placed directly outdoors in a harsh salt fog environment. When used for a long time, the fins are covered with salt fog crystals, which seriously affects the heat exchange performance and the life of the condenser.

[0003] At present, in order to solve the above-mentioned salt spray problem, fin materials with strong anti-corrosion performance are generally used, and there is no solution to remove the salt spray on the fins separately. How to better remove the salt spray so that the heat exchanger has good adaptability to the marine environment is an urgent problem to be solved for marine air-cooled air conditioners.

[0004] With regard to the problem in the prior art that the surface of the heat exchanger is covered with salt mist, which affects the heat exchange performance, no effective solution has been proposed yet. Summary of the invention

[0005] The embodiments of the present invention provide a desalination mist control method, a device and an air-cooled air conditioner, so as to at least solve the problem in the prior art that the surface of a heat exchanger is covered with salt mist and affects the heat exchange performance.

[0006] In order to solve the above technical problems, an embodiment of the present invention provides a desalination mist control method, comprising:

[0007] In response to the desalination mist instruction, the opening of the throttling element is controlled so that the exhaust temperature reaches a preset temperature, and the condensing fan is opened to the highest wind speed;

[0008] After the first preset time, determine whether the heat exchange temperature difference of the condenser meets the preset conditions;

[0009] If satisfied, exit desalination mode.

[0010] Optionally, controlling the opening of the throttling element so that the exhaust gas temperature reaches a preset temperature includes:

[0011] reducing the throttling element to a preset opening;

[0012] At second preset time intervals, the opening of the throttling element is controlled according to the exhaust temperature detected in real time and the preset temperature until the exhaust temperature reaches the preset temperature.

[0013] Optionally, controlling the opening of the throttling element according to the exhaust temperature detected in real time and the preset temperature includes:

[0014] When the exhaust temperature is greater than the sum of the preset temperature and the preset value, increasing the opening of the throttling element;

[0015] When the exhaust temperature is less than the difference between the preset temperature and the preset value, reducing the opening of the throttling element;

[0016] When the exhaust temperature is greater than or equal to the difference between the preset temperature and the preset value and less than or equal to the sum of the preset temperature and the preset value, the current opening of the throttling element is kept unchanged.

[0017] Optionally, judging whether the heat exchange temperature difference of the condenser meets a preset condition includes:

[0018] If it is detected that T1-T2<△T1, it is determined that the preset condition is met;

[0019] Among them, T1 represents the saturation temperature corresponding to the condensation pressure, T2 represents the external ambient temperature, and △T1 represents the preset temperature difference.

[0020] Optionally, before responding to the desalination instruction, the method further includes:

[0021] When any of the following conditions is met, it is determined that the desalination instruction has been received:

[0022] When the automatic desalting mist function is turned on, it is detected that the third consecutive preset time satisfies T1-T2≥△T1;

[0023] When the periodic desalination function is turned on, it is detected that the cumulative running time of the air conditioner reaches the specified time;

[0024] Detecting that the user starts the desalination operation;

[0025] Among them, T1 represents the saturation temperature corresponding to the condensation pressure, T2 represents the external ambient temperature, and △T1 represents the preset temperature difference.

[0026] The embodiment of the present invention further provides a desalination mist control device, comprising:

[0027] A control module, for responding to a desalination mist instruction, controlling the opening of the throttling element so that the exhaust temperature reaches a preset temperature, and at the same time opening the condensing fan to the highest wind speed;

[0028] A judgment module, used to judge whether the heat exchange temperature difference of the condenser meets a preset condition after a first preset time;

[0029] The exit module is used to exit the desalting mist mode if the conditions are met.

[0030] Optionally, the control module includes:

[0031] A first control unit, used for reducing the throttling element to a preset opening degree;

[0032] The second control unit is used to control the opening of the throttling element according to the exhaust temperature detected in real time and the preset temperature at every second preset time until the exhaust temperature reaches the preset temperature.

[0033] The embodiment of the present invention further provides an air-cooled air conditioner, comprising: the desalination mist control device described in the embodiment of the present invention.

[0034] An embodiment of the present invention further provides a computer device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the method described in the embodiment of the present invention when executing the computer program.

[0035] The embodiment of the present invention further provides a non-volatile computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the steps of the method described in the embodiment of the present invention are implemented.

[0036] By applying the technical solution of the present invention, in response to the desalting mist instruction, the opening of the throttling element is controlled so that the exhaust temperature reaches the preset temperature, and the condensing fan is opened to the highest wind speed. After a certain period of time, if the heat exchange temperature difference of the condenser meets the preset conditions, the desalting mist mode is exited. By controlling the throttling element to increase the exhaust temperature, the high-temperature exhaust gas enters the condenser, and the salt mist on the surface of the condenser is crystallized and powdered. The condensing fan is used to blow away the salt mist, thereby purifying the surface of the heat exchanger, realizing automatic removal of salt mist on the surface of the heat exchanger, improving the heat exchange efficiency of the condenser fins, improving the heat exchange performance, improving the anti-corrosion performance of the condenser, increasing the service life of the condenser, and improving the reliability of the whole machine, solving the problem that the heat exchange performance is affected by the salt mist covering the surface of the heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 is a flow chart of the desalination mist control method provided in Example 1 of the present invention;

[0038] Figure 2 is a schematic diagram of an air conditioning refrigeration cycle provided by Embodiment 2 of the present invention;

[0039] Figure 3 It is a structural block diagram of the desalination mist control device provided in the third embodiment of the present invention. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] It should be noted that the terms "first", "second", etc. in the specification, claims and drawings of the present invention are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0042] It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and that, although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0043] The optional embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0044] Embodiment 1

[0045] This embodiment provides a desalination mist control method, which can be applied to marine air-cooled air conditioners. Figure 1 is a flow chart of the desalination mist control method provided in Example 1 of the present invention, such as Figure 1 As shown, the method comprises the following steps:

[0046] S101, in response to a desalination instruction, controlling the opening of the throttling element so that the exhaust temperature reaches a preset temperature, and at the same time opening the condensing fan to the highest wind speed.

[0047] S102: After a first preset time, determine whether the heat exchange temperature difference of the condenser meets a preset condition.

[0048] S103, if satisfied, exit the desalting mode;

[0049] S104: If not, continue to control the throttling element opening and the condensing fan, and determine again after the first preset time whether the condenser heat exchange temperature difference meets the preset conditions.

[0050] Among them, in response to the desalting mist instruction, the air conditioner will enter the desalting mist mode and perform the control operation corresponding to the desalting mist. The throttling element is a device connected between the evaporator and the condenser. For example, the throttling element can be a device with throttling effect such as an electronic expansion valve. The condensing fan is the fan corresponding to the condenser. Reducing the opening of the throttling element will increase the exhaust temperature. The preset temperature can be pre-set according to the use area and actual environmental conditions. The preset temperature is different for different refrigerants used in the air conditioner. By increasing the exhaust temperature, the salt mist covering the surface of the condenser can be dried, crystallized and powdered. The smaller salt mist particles originally covering the surface of the condenser and the powdered salt mist can be blown away by the condensing fan, thereby achieving the purpose of removing the salt mist on the surface of the condenser.

[0051] The first preset time is a time setting value for forcibly controlling the throttling element and the condensing fan in the desalting mist mode. The first preset time can be preset according to actual environmental conditions. For example, the value range of the first preset time is 10 minutes to 30 minutes.

[0052] The larger the condenser heat exchange temperature difference, the poorer the condenser heat exchange performance, the more salt mist on the condenser surface, and the need to remove the salt mist. The preset condition is used to measure whether the condenser needs to remove the salt mist, that is, to judge the severity of the salt mist on the condenser surface. If the condenser heat exchange temperature difference meets the preset condition, it means that the salt mist on the condenser surface has been removed. At this time, you can exit the desalting mist mode and the air conditioner enters normal control; if the condenser heat exchange temperature difference does not meet the preset condition, it means that the salt mist needs to be removed, and the desalting mist mode continues to be executed, that is, the throttling element opening and the condensing fan continue to be controlled. After the first preset time, it is judged again whether the condenser heat exchange temperature difference meets the preset condition.

[0053] In response to the desalting mist instruction, this embodiment controls the opening of the throttling element to make the exhaust temperature reach the preset temperature, and at the same time opens the condensing fan to the highest wind speed. After a certain period of time, if the heat exchange temperature difference of the condenser meets the preset conditions, the desalting mist mode is exited. By controlling the throttling element to increase the exhaust temperature, the high-temperature exhaust enters the condenser, and the salt mist on the surface of the condenser is crystallized and powdered. The condensing fan is used to blow away the salt mist, thereby purifying the surface of the heat exchanger, realizing automatic removal of salt mist on the surface of the heat exchanger, improving the heat exchange efficiency of the condenser fins, improving the heat exchange performance, improving the anti-corrosion performance of the condenser, increasing the service life of the condenser, and improving the reliability of the whole machine, solving the problem of salt mist covering the surface of the heat exchanger affecting the heat exchange performance.

[0054] In one embodiment, controlling the opening of the throttling element so that the exhaust temperature reaches a preset temperature includes: reducing the throttling element by a preset opening; and controlling the opening of the throttling element according to the real-time detected exhaust temperature and the preset temperature every second preset time until the exhaust temperature reaches the preset temperature.

[0055] The preset opening is the adjustment range of the throttling element, and the preset opening can be preset according to the actual situation. For example, the value range of the preset opening A is 1≤A≤5 to avoid large system fluctuations. The second preset time is the time interval for adjusting the opening of the throttling element, and the second preset time can be preset according to the actual environmental conditions. For example, the value range of the second preset time is 1s to 10s.

[0056] This embodiment periodically adjusts the opening of the throttling element with the second preset time as the interval and the preset opening as the adjustment range, which can ensure the accuracy of the throttling element opening adjustment, ensure that the exhaust temperature will not change sharply, and avoid large fluctuations in the refrigeration system.

[0057] Furthermore, the opening of the throttling element is controlled according to the exhaust temperature detected in real time and the preset temperature, including: when the exhaust temperature is greater than the sum of the preset temperature and the preset value, the opening of the throttling element is increased; when the exhaust temperature is less than the difference between the preset temperature and the preset value, the opening of the throttling element is reduced; when the exhaust temperature is greater than or equal to the difference between the preset temperature and the preset value and less than or equal to the sum of the preset temperature and the preset value, the current opening of the throttling element is kept unchanged. Among them, the preset value can be preset according to the actual environmental conditions, for example, the preset value has a value range of 1°C to 2°C. In this way, the exhaust temperature can be effectively increased.

[0058] In one embodiment, judging whether the heat exchange temperature difference of the condenser satisfies a preset condition includes: if it is detected that T1-T2<△T1, it is determined that the preset condition is met; wherein T1 represents the saturation temperature corresponding to the condensing pressure, T2 represents the external environment temperature, and △T1 represents the preset temperature difference. The preset temperature difference △T1 can be preset according to the actual environment conditions, for example, the value range of △T1 is 8℃~15℃. T1 and T2 can be obtained by sensor detection.

[0059] In this embodiment, the effect of removing the salt mist is judged by the heat exchange temperature difference of the condenser, so that the desalting mist mode can be exited in time and the normal control of the air conditioner can be restored.

[0060] Before responding to the desalting mist instruction, the method further includes: determining that the desalting mist instruction is received when any of the following conditions is met:

[0061] (1) When the automatic desalting mist function is turned on, it is detected that T1-T2≥△T1 is satisfied for the third consecutive preset time, where T1 represents the saturation temperature corresponding to the condensation pressure, T2 represents the external environment temperature, and △T1 represents the preset temperature difference;

[0062] (2) When the periodic desalination function is turned on, it is detected that the cumulative operation time of the air conditioner reaches the specified time;

[0063] (3) The user starts the desalination operation.

[0064] The third preset time can be preset according to the actual environmental conditions. For example, the value range of the third preset time is 1s to 240s. If the third preset time satisfies T1-T2≥△T1 continuously, it means that the heat exchange performance of the condenser is poor, the surface salt mist is large, and high temperature is required to remove the salt mist.

[0065] The specified time is N×t, where N is an integer and N≥1, and t represents the desalination cycle. t can be preset according to actual environmental conditions or set by the user according to needs. For example, the value range of t is 3 months to 12 months. When the periodic desalination function is turned on, the accumulated running time of the air conditioner is recorded. Every time the accumulated running time of the air conditioner reaches N×t, the desalination operation is performed.

[0066] Detecting that the user starts the desalting mist operation means detecting that the user manually starts the desalting mist operation through a preset input unit (such as a desalting mist button, etc.).

[0067] This embodiment provides three desalting mist functions: automatic desalting mist function, regular desalting mist function and manual desalting mist function. The desalting mist mode can be entered according to corresponding conditions, thereby meeting different usage requirements.

[0068] Embodiment 2

[0069] The above desalination mist control method is described below in conjunction with a specific embodiment. However, it is worth noting that this specific embodiment is only for better illustrating the present application and does not constitute an improper limitation on the present application. The explanation of terms that are the same or corresponding to the above embodiment will not be repeated in this embodiment.

[0070] like Figure 2 As shown, the air conditioner includes: a compressor 1, a fin condenser 2, a throttling element 3 (which can be an electronic expansion valve) and an evaporator 4. The fin condenser 2 is correspondingly provided with a condensing fan 21, and the evaporator 4 is correspondingly provided with an evaporating fan 41. The air conditioner is also provided with an exhaust temperature sensor 5, an ambient temperature sensor 6 and a condensing pressure sensor 7.

[0071] The exhaust temperature is controlled by a throttling element. When the exhaust temperature reaches the preset temperature, the salt mist crystals are easy to powderize. The condensing fan is turned on in a forced high-end mode to blow away the salt mist crystals, thereby achieving high-temperature desalination, purifying the heat exchanger, and improving the heat exchange performance.

[0072] Specifically including the following types of desalination mist control:

[0073] 1. Automatic desalination

[0074] 1. Salt spray severity detection

[0075] The air conditioner is turned on, and the compressor is turned on for t1 seconds. When T1-T2≥△T1 is detected for t2 seconds in a row, it is judged that the heat exchange performance of the condenser is poor and there is a lot of salt fog on the surface, and the high-temperature desalting fog mode is entered;

[0076] 2. Electronic expansion valve and condensing fan control

[0077] When entering the high-temperature desalination mist mode, the electronic expansion valve adjusts its opening every t3 seconds, which can be closed by A step, opened by A step, or kept unchanged until the exhaust temperature reaches T4. Specifically, the electronic expansion valve is controlled according to the actual detected exhaust temperature T3 as follows:

[0078] (1) T3>T4+△T2, open the electronic expansion valve;

[0079] (2) When T3<T4-△T2, close the electronic expansion valve;

[0080] (3) When T4-△T2≤T3≤T4+△T2, the electronic expansion valve maintains the current opening.

[0081] When entering the high-temperature desalination mist mode, the condensing fan is switched to the highest wind speed, and after running for t4 minutes, the forced control of the electronic expansion valve and the condensing fan is exited.

[0082] 3. Salt mist removal effect detection

[0083] After the electronic expansion valve and condensing fan exit forced control, repeat step 1 to detect the severity of salt spray. When the high-temperature desalting mist mode is met, turn on this mode, otherwise enter the normal air conditioning and refrigeration control.

[0084] When the condenser heat exchange performance is detected to be poor, the automatic desalination is turned on, and the electronic expansion valve opening is controlled to increase the exhaust temperature in a short period of time, so that the salt mist is crystallized and dried and then powdered. Then the condensing fan air volume is forced to increase to blow away the salt mist particles. The effect of removing the salt mist is judged by detecting the change of the condensing temperature before and after, so as to exit the desalination mode. The automatic desalination function can automatically identify the severity of the salt mist, and realize automatic powderization and blowing, so as to realize automatic desalination.

[0085] 2. Regularly remove salt mist

[0086] Set the timed desalination cycle t on the handheld operator, and the control system will record the accumulated operation time of the air conditioner. Every time the accumulated operation time of the air conditioner reaches N×t, the desalination is turned on. When entering the desalination control, the steps are consistent with the steps 2 and 3 of the automatic desalination. N is an integer and N≥1.

[0087] 3. Manual desalination

[0088] Considering the user habits in the marine field, the air conditioner is equipped with a manual desalination function. When the user clicks on it, it enters the high-temperature desalination control, and the steps are consistent with steps 2 and 3 of the automatic desalination.

[0089] T1 indicates the saturation temperature corresponding to the condensing pressure, T2 indicates the actual detected external ambient temperature, and T3 indicates the actual detected exhaust temperature. △T1 indicates the preset temperature difference, △T2 indicates the preset value, and T4 indicates the preset temperature. t1, t2, t3, t4, and t are time setting values. t1 indicates the time for the unit to run stably after startup. The value range of t1 is 1s to 240s. t2 indicates the third preset time, t3 indicates the second preset time, and t4 indicates the first preset time.

[0090] This embodiment controls the electronic expansion valve to increase the exhaust temperature, thereby using high temperature to dry the salt mist on the condenser surface, precipitate salt mist particles, and powderize the salt mist. The condensing fan blows away the salt mist particles to purify the heat exchanger surface, improve the heat exchange efficiency of the condenser fins, improve the heat exchange performance, improve the fin anti-corrosion performance, increase the service life of the condenser, and improve the reliability of the whole machine. It has stronger technical competitiveness in the field of marine air-cooled air conditioners. It also provides a variety of salt mist removal functions to better meet the needs and application habits of customers in the marine field.

[0091] Embodiment 3

[0092] Based on the same inventive concept, this embodiment provides a desalting mist control device, which can be used to implement the desalting mist control method described in the above embodiment. The desalting mist control device can be implemented by software and / or hardware, and the desalting mist control device can generally be integrated into the controller of the air conditioner.

[0093] Figure 3 is a structural block diagram of a desalination mist control device provided in Embodiment 3 of the present invention, such as Figure 3 As shown, the desalination mist control device comprises:

[0094] The control module 31 is used to control the opening of the throttling element in response to the desalination mist instruction so that the exhaust temperature reaches a preset temperature, and at the same time, the condensing fan is opened to the highest wind speed;

[0095] A judgment module 32, used to judge whether the heat exchange temperature difference of the condenser meets a preset condition after a first preset time;

[0096] The exit module 33 is used to exit the desalination mist mode if the conditions are met.

[0097] Optionally, the control module 31 includes:

[0098] A first control unit, used for reducing the throttling element to a preset opening degree;

[0099] The second control unit is used to control the opening of the throttling element according to the exhaust temperature detected in real time and the preset temperature at every second preset time until the exhaust temperature reaches the preset temperature.

[0100] Optionally, the second control unit is specifically used for:

[0101] When the exhaust temperature is greater than the sum of the preset temperature and the preset value, increasing the opening of the throttling element;

[0102] When the exhaust temperature is less than the difference between the preset temperature and the preset value, reducing the opening of the throttling element;

[0103] When the exhaust temperature is greater than or equal to the difference between the preset temperature and the preset value and less than or equal to the sum of the preset temperature and the preset value, the current opening of the throttling element is kept unchanged.

[0104] Optionally, the judgment module 32 is specifically used to: if it is detected that T1-T2<△T1, determine that the preset condition is met; wherein T1 represents the saturation temperature corresponding to the condensation pressure, T2 represents the external environment temperature, and △T1 represents the preset temperature difference.

[0105] Optionally, the above-mentioned desalination mist control device also includes:

[0106] The determination module is used to determine that the desalination instruction is received when any of the following conditions is met:

[0107] When the automatic desalting mist function is turned on, it is detected that the third consecutive preset time satisfies T1-T2≥△T1;

[0108] When the periodic desalination function is turned on, it is detected that the cumulative running time of the air conditioner reaches the specified time;

[0109] Detecting that the user starts the desalination operation;

[0110] Among them, T1 represents the saturation temperature corresponding to the condensation pressure, T2 represents the external ambient temperature, and △T1 represents the preset temperature difference.

[0111] The above-mentioned desalination mist control device can execute the desalination mist control method provided by the embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method. For technical details not described in detail in this embodiment, please refer to the desalination mist control method provided by the embodiment of the present invention.

[0112] Embodiment 4

[0113] This embodiment provides an air-cooled air conditioner, comprising: the desalination mist control device described in the above embodiment.

[0114] Embodiment 5

[0115] This embodiment provides a computer device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the method described in the above embodiment when executing the computer program.

[0116] Embodiment 6

[0117] This embodiment provides a non-volatile computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the steps of the method described in the above embodiment are implemented.

[0118] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0119] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0120] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A desalination mist control method, characterized in that: include: In response to the desalination mist instruction, the opening of the throttling element is controlled so that the exhaust temperature reaches a preset temperature, and the condensing fan is opened to the highest wind speed; After the first preset time, determine whether the heat exchange temperature difference of the condenser meets the preset conditions; If satisfied, exit desalination mode.

2. The method according to claim 1, characterized in that Control the opening of the throttling element to make the exhaust gas temperature reach the preset temperature, including: reducing the throttling element to a preset opening; At second preset time intervals, the opening of the throttling element is controlled according to the exhaust temperature detected in real time and the preset temperature until the exhaust temperature reaches the preset temperature.

3. The method according to claim 2, characterized in that Controlling the opening of the throttling element according to the exhaust temperature detected in real time and the preset temperature includes: When the exhaust temperature is greater than the sum of the preset temperature and the preset value, increasing the opening of the throttling element; When the exhaust temperature is less than the difference between the preset temperature and the preset value, reducing the opening of the throttling element; When the exhaust temperature is greater than or equal to the difference between the preset temperature and the preset value and less than or equal to the sum of the preset temperature and the preset value, the current opening of the throttling element is kept unchanged.

4. The method according to claim 1, characterized in that: Determine whether the condenser heat exchange temperature difference meets the preset conditions, including: If it is detected that T1-T2<△T1, it is determined that the preset condition is met; Among them, T1 represents the saturation temperature corresponding to the condensation pressure, T2 represents the external ambient temperature, and △T1 represents the preset temperature difference.

5. The method according to any one of claims 1 to 4, characterized in that Before responding to the desalting instruction, it also includes: When any of the following conditions is met, it is determined that the desalination instruction has been received: When the automatic desalting mist function is turned on, it is detected that the third consecutive preset time satisfies T1-T2≥△T1; When the periodic desalination function is turned on, it is detected that the cumulative running time of the air conditioner reaches the specified time; Detecting that the user starts the desalination operation; Among them, T1 represents the saturation temperature corresponding to the condensation pressure, T2 represents the external ambient temperature, and △T1 represents the preset temperature difference.

6. A desalination mist control device, characterized in that: include: A control module, for responding to a desalination mist instruction, controlling the opening of the throttling element so that the exhaust temperature reaches a preset temperature, and at the same time opening the condensing fan to the highest wind speed; A judgment module, used to judge whether the heat exchange temperature difference of the condenser meets a preset condition after a first preset time; The exit module is used to exit the desalting mist mode if the conditions are met.

7. The device according to claim 6, characterized in that The control module comprises: A first control unit, used for reducing the throttling element to a preset opening degree; The second control unit is used to control the opening of the throttling element according to the exhaust temperature detected in real time and the preset temperature at every second preset time until the exhaust temperature reaches the preset temperature.

8. An air-cooled air conditioner, characterized in that: include: The desalination mist control device according to claim 6 or 7.

9. A computer device comprising: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the method according to any one of claims 1 to 5 when executing the computer program.

10. A non-volatile computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 5 are implemented.

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