Anti-icing control method, electronic equipment and air circulation refrigeration system

Abstract

The invention relates to the technical field of air refrigeration equipment, in particular to an anti-icing control method, electronic equipment and an air circulation refrigeration system. The air circulation refrigerating system comprises an air flow path for treating a high-temperature and high-pressure air source and an anti-icing flow path, the anti-icing flow path communicates with the high-temperature and high-pressure air source, and the anti-icing flow path is used for conducting anti-icing treatment on the air flow path under the condition that anti-icing treatment needs to be conducted. The anti-icing control method comprises the steps that environment parameters in the operation process of the air circulation refrigeration system are obtained; and under the condition that it is determined that the air flow path needs to be subjected to anti-icing treatment according to the environment parameters, an anti-icing control process is executed, and in the anti-icing control process, a high-pressure and high-temperature air source is controlled to be introduced into the anti-icing flow path so as to carry out anti-icing treatment on the air flow path. According to the air circulation refrigerating system, the icing time in the air flow path can be effectively slowed down through the anti-icing flow path, icing in the air flow path is prevented, and therefore the system reliability of the air circulation refrigerating system is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air refrigeration equipment, and in particular to an anti-icing control method, electronic equipment and an air circulation refrigeration system. Background Art

[0002] The air circulation refrigeration system generally includes several main components such as compressor, condenser, expansion valve and evaporator. The basic principle of the air circulation refrigeration system is to compress the gaseous refrigerant into high-temperature and high-pressure gas through the compressor; then the high-temperature and high-pressure gas is sent to the condenser for cooling, and the cooled high-temperature and high-pressure gas becomes medium-temperature and high-pressure liquid refrigerant; after throttling and reducing the pressure through the expansion valve, the medium-temperature and high-pressure liquid refrigerant becomes a low-temperature and low-pressure gas-liquid mixture; finally, the low-temperature and low-pressure gas-liquid mixture absorbs heat from the air in the evaporator and vaporizes, and returns to the compressor to continue circulating, thereby achieving the regulation of the air temperature.

[0003] The air cycle refrigeration system also includes other components, such as turbines, water separators, fans, compressors, and various sensors. One of the methods to improve the refrigeration capacity of the air cycle refrigeration system is to use high-pressure water removal, that is, to remove water vapor from the air before it enters the turbine. The high-pressure water removal efficiency is generally around 90%.

[0004] However, in some working conditions with high humidity, although the efficiency of the water separator can still be maintained at about 90%, the absolute moisture content entering the turbine in the system is still higher than the design point of the air circulation refrigeration system, which causes ice to form at the turbine outlet and the condenser, resulting in ice blockage between the subsequent turbine outlet and the condenser, affecting the stability of the operation of the air circulation refrigeration system, and in severe cases, causing the system to burn out. On the other hand, in order to ensure the reliable operation of the air circulation refrigeration system, a bypass deicing pipeline is provided in the air circulation refrigeration system. When the gas pressure at the turbine outlet and the condenser outlet drops to a certain value, the bypass deicing pipeline is opened to deice the ice-blocked position through the bypass deicing pipeline. However, due to the excessively high moisture content of the high-temperature and high-pressure gas entering the air circulation refrigeration system, which exceeds the anti-icing capacity of the air circulation refrigeration system, the air circulation refrigeration system will be frequently deiced, causing the temperature of the air at the outlet of the air circulation refrigeration system to fluctuate, reducing the comfort of the user. Summary of the invention

[0005] In view of this, the present invention provides an anti-icing control method, an electronic device and an air circulation refrigeration system to solve the problem of system damage and reduced user comfort caused by ice blockage in the existing air circulation refrigeration system.

[0006] A first aspect of an embodiment of the present invention provides an anti-icing control method, which is applied to an air circulation refrigeration system, wherein the air circulation refrigeration system includes an air flow path for processing a high-temperature and high-pressure air source and an anti-icing flow path, wherein the anti-icing flow path is connected to the high-temperature and high-pressure air source, and the anti-icing flow path is used to perform anti-icing treatment on the air flow path when anti-icing treatment is required. The anti-icing control method includes:

[0007] Acquiring environmental parameters during the operation of the air circulation refrigeration system, wherein the environmental parameters at least include temperature parameters and humidity parameters of gas in the air circulation refrigeration system;

[0008] When it is determined according to the environmental parameters that the air flow path needs to be anti-iced, an anti-icing control process is performed. During the anti-icing control process, the high-pressure and high-temperature air source is controlled to pass into the anti-icing flow path to perform anti-icing on the air flow path.

[0009] In some embodiments, the anti-icing control process includes a first anti-icing control mode and a second anti-icing control mode with different degrees of anti-icing;

[0010] The environmental parameters include an outlet temperature value and an outlet humidity value at the outlet of the air circulation refrigeration system;

[0011] A temperature control element is provided on the anti-icing flow path, and the temperature control element is used to open or close the anti-icing flow path;

[0012] When it is determined according to the environmental parameters that the air flow path needs to be anti-iced, executing the anti-icing control process includes:

[0013] When the outlet temperature value is greater than or equal to the second temperature value and less than the first temperature value, and the outlet humidity value is greater than or equal to the set value, executing the first anti-icing control mode, wherein the first temperature value is greater than the second temperature value;

[0014] When the outlet temperature value is less than a second temperature value and the outlet humidity value is greater than or equal to the set value, the second anti-icing control mode is executed, wherein the opening speed of the temperature control component in the second anti-icing control mode is greater than the opening speed of the temperature control component in the first anti-icing control mode.

[0015] In some embodiments, the first anti-icing control mode includes:

[0016] The temperature control element is controlled to operate at a first opening speed, and the temperature control element is controlled to perform a first compensation control according to the outlet humidity value until the opening degree of the temperature control element reaches a first opening degree, so that the outlet temperature value is increased to a first numerical range.

[0017] In some embodiments, the first opening speed has a value range of 0.5 to 4.15 degrees per second.

[0018] In some embodiments, the first compensation control includes:

[0019] The temperature control element is controlled to increase the opening speed by a first acceleration value based on the first opening speed, wherein the first acceleration value is related to the outlet humidity value.

[0020] In some embodiments, the first acceleration value is the product of the outlet humidity value and a first compensation coefficient.

[0021] In some embodiments, after the step of setting the opening value of the temperature control to a first opening degree, the first anti-icing control mode further includes:

[0022] When the increased outlet temperature value is greater than or equal to a first value, the operation of the first anti-icing control mode is stopped, wherein the first value is greater than the first temperature value.

[0023] In some embodiments, the second anti-icing control mode includes:

[0024] The temperature control component is controlled to operate at a second opening speed, and the temperature control component is controlled to perform a second compensation control according to the outlet humidity value, until the opening value of the temperature control component reaches a second opening degree, so that the outlet temperature value is increased to a second value range.

[0025] In some embodiments, the second opening speed has a value range of 0.25 to 4.15 degrees per second.

[0026] In some embodiments, the second compensation control includes:

[0027] The temperature control element is controlled to increase the opening speed by a second acceleration value based on the second opening speed, wherein the second acceleration value is related to the outlet humidity value.

[0028] In some embodiments, the second acceleration value is the product of the outlet humidity value and a second compensation coefficient.

[0029] In some embodiments, after the step of setting the opening value of the temperature control element to a second opening degree, the second anti-icing control mode further includes:

[0030] When the increased outlet temperature value is greater than or equal to a second value, the operation of the second anti-icing control mode is stopped, wherein the second value is greater than the first temperature value.

[0031] In some embodiments, the anti-icing control process further includes a de-icing mode;

[0032] When the outlet temperature value is greater than or equal to the first temperature value, determining whether the air flow path meets the deicing condition;

[0033] If the de-icing condition is met, the de-icing mode is operated.

[0034] In some embodiments, a pressure difference detection element is provided in the air flow path, and the pressure difference detection element is used to obtain the pressure difference values ​​at different positions in the air flow path;

[0035] The determining whether the air flow path meets the deicing condition includes:

[0036] Acquiring a first pressure difference value through the pressure difference detection component;

[0037] When the first pressure difference value is greater than or equal to a first set value, determining that the air circulation refrigeration system meets the deicing condition;

[0038] The operating the de-icing mode comprises:

[0039] Controlling the temperature control element to open at a set speed so as to make the anti-icing flow path conductive;

[0040] Acquiring a second pressure difference value based on the pressure difference detection component;

[0041] When the second pressure difference value is less than a second set value, the de-icing mode is exited, wherein the second set value is less than the first set value.

[0042] In some embodiments, the anti-icing control method further includes:

[0043] During the operation of the deicing mode, obtaining the operation time of the deicing mode;

[0044] It is determined whether to operate the first anti-icing control mode or the second anti-icing control mode for the air cycle refrigeration system according to the operating time.

[0045] In some embodiments, determining whether to operate the first anti-icing control mode or the second anti-icing control mode for the air flow path according to the operating time includes:

[0046] When the operation time is greater than or equal to a second time and less than the first time, operating the second anti-icing control mode on the air flow path; and,

[0047] The first anti-icing control mode is operated on the air flow path when the operation time is less than the second time, wherein the second time is less than the first time.

[0048] A second aspect of an embodiment of the present invention provides an electronic device, the electronic device comprising:

[0049] a memory for storing one or more computer executable instructions;

[0050] A processor is used to call and execute computer executable instructions in the memory, so as to implement the method as described in any one of the first aspects.

[0051] A third aspect of the embodiments of the present invention provides an air circulation refrigeration system, which is controlled by the method described in the first aspect, or has the electronic device described in the second aspect.

[0052] Compared with the prior art, the beneficial effects of the present invention are mainly:

[0053] In the anti-icing control method, electronic device and air circulation refrigeration system of the present invention, the air circulation refrigeration system includes an air flow path and an anti-icing flow path for processing a high-temperature and high-pressure gas source, wherein the anti-icing flow path is connected to the high-temperature and high-pressure gas source, and when anti-icing treatment is required in the air flow path, the anti-icing flow path is used to perform anti-icing treatment on the air flow path. The anti-icing control method includes: obtaining environmental parameters during the operation of the air circulation refrigeration system, and the environmental parameters at least include other temperature parameters and humidity parameters in the air circulation refrigeration system; then, when it is determined according to the environmental parameters that the air flow path needs to be anti-iced, the anti-icing control process is executed, wherein in the anti-icing control process, the high-pressure and high-temperature gas source is controlled to pass into the anti-icing flow path to perform anti-icing treatment on the air flow path. Based on the implementation of the above anti-icing control method, the anti-icing flow path can be used to effectively slow down the icing inside the air flow path, prevent icing in the air flow path, thereby improving the system stability of the air circulation refrigeration system, ensuring the stability of the temperature of the gas at the outlet of the air circulation refrigeration system, and thus effectively improving the user's comfort and the user experience of the air circulation refrigeration system. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0055] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0056] Figure 1 is a structural schematic diagram of an air circulation refrigeration system according to an embodiment of the present invention;

[0057] Figure 2 is a flowchart of steps of an anti-icing control method according to an embodiment of the present invention;

[0058] Figure 3 It is a logic judgment flow chart of an anti-icing control method according to an embodiment of the present invention. Description of the drawings:

[0060] 100. Air circulation refrigeration system;

[0061] 200, air flow path; 210, circulation pipeline; 211, third pipeline; 220, heat exchanger; 221, primary heat exchanger; 222, secondary heat exchanger; 230, compressor; 240, cooling turbine; 250, condenser; 260, regenerator; 270, water separator; 271, first pipeline; 272, second pipeline; 280, sensor; 281, pressure sensor; 282, differential pressure detection element; 283, temperature and humidity sensor; 290, induced ventilator;

[0062] 300, anti-icing flow path; 310, temperature control component;

[0063] 400. Controller. DETAILED DESCRIPTION

[0064] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of 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.

[0065] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two, but does not exclude the inclusion of at least one.

[0066] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0067] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such a product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0068] Embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0069] like Figure 1 As shown, an exemplary embodiment of the present invention provides an air circulation refrigeration system 100, wherein the air circulation refrigeration system 100 can be a three-wheel high-pressure water removal system, or can also be a two-wheel air circulation refrigeration system.

[0070] The air cycle refrigeration system 100 includes an air flow path 200 and an anti-icing flow path 300. The inlet end of the air flow path 200 is connected to a high-temperature and high-pressure air source. The air flow path 200 includes a circulation pipeline 210 and a heat exchanger 220, a compressor 230, a cooling turbine 240, a condenser 250, a regenerator 260, a water separator 270 and a sensor 280 arranged on the circulation pipeline 210.

[0071] Among them, the heat exchanger 220 includes a primary heat exchanger 221 and a secondary heat exchanger 222. An induced draft fan 290 is arranged on the cold side of the primary heat exchanger 221 and the secondary heat exchanger 222. The induced draft fan 290 is used to inhale external air and utilize the heat exchange process between the external air and the primary heat exchanger 221 and the secondary heat exchanger 222 to cool the primary heat exchanger 221 and the secondary heat exchanger 222 to ensure the normal operation of the primary heat exchanger 221 and the secondary heat exchanger 222.

[0072] The compressor 230 is disposed on the flow pipeline 210 between the primary heat exchanger 221 and the secondary heat exchanger 222. The high-temperature and high-pressure gas in the high-temperature and high-pressure gas source enters the primary heat exchanger 221 and is cooled to form low-temperature and high-pressure gas. Then, the low-temperature and high-pressure gas enters the compressor 230 to increase the pressure and temperature, and then enters the secondary heat exchanger 222 to be cooled.

[0073] The compressor 230 may include but is not limited to an axial flow compressor or a centrifugal compressor. Regardless of whether the compressor 230 is an axial flow compressor or a centrifugal compressor, the pressure of the gas entering the compressor 230 is increased.

[0074] The gas cooled by the secondary heat exchanger 222 enters the regenerator 260, which is used to reheat the gas after the cooling treatment. A part of the regenerated gas passes through the condenser 250 to condense the water in the gas, so that the gas is mixed with condensed water. Then, the gas mixed with condensed water passes through the water separator 270 to separate nearly 90% of the water, and the liquid water is sprayed into the cold side inlet of the secondary heat exchanger 222 through the first pipeline 271.

[0075] Another part of the gas after reheating and passing through the water separator 270 will re-enter the reheater 260 through the second pipeline 272 for heat recovery treatment. This part of the gas after heat recovery treatment will enter the cooling turbine 240. Among them, the gas passing through the water separator 270 and the heat recovery treatment again can make the air before entering the cooling turbine 240 free of droplets, thereby ensuring the stable working state and working efficiency of the cooling turbine 240.

[0076] It should be noted that the compressor 230 and the cooling turbine 240 are coaxially operated. Figure 1 The dashed line between the intermediate compressor 230 and the cooling turbine 240 is indicated.

[0077] After passing through the water separator 270 and the gas after reheat treatment, it enters the cooling turbine 240, and will undergo expansion, pressure reduction and temperature reduction, so that the low-temperature and low-pressure gas enters the cold side of the condenser 250 for heat exchange treatment, so that the temperature of the low-temperature and low-pressure gas returns to around 0 degrees Celsius for customer use.

[0078] In this example and the following examples, the air circulation refrigeration system 100 is described as a three-wheel high-pressure water removal structure, that is, the induced draft fan 290, the compressor 230 and the cooling turbine 240 in the air circulation refrigeration system 100 operate coaxially.

[0079] The sensor 280 includes a pressure sensor 281, a pressure difference detection element 282, and a temperature and humidity sensor 283. The pressure difference detection element 282 may include but is not limited to a pressure difference sensor.

[0080] A pressure sensor 281 , a pressure difference detection element 282 , and a temperature and humidity sensor 283 are sequentially arranged on the pipeline connected to the outlet end of the condenser 250 .

[0081] The pressure sensor 281 is used to detect the system pressure at various locations in the air circulation refrigeration system 100 .

[0082] A third pipeline 211 is arranged on the circulation pipeline 210 between the cooling turbine 240 and the condenser 250. The other end of the third pipeline 211 is connected to the pipeline connected to the outlet end of the condenser 250. The third pipeline 211 is used in conjunction with the pressure difference detection element 282 to realize the pressure difference detection between the outlet end of the cooling turbine 240 and the outlet end of the condenser 250.

[0083] The temperature and humidity sensor 283 is used to detect the temperature parameters and humidity parameters of the airflow at the outlet end of the condenser 250. It should be noted that other temperature sensors, humidity sensors or temperature and humidity sensors may be provided in the air circulation refrigeration system 100 to detect the temperature parameters and humidity parameters of the high-temperature and high-pressure air source entering the air circulation refrigeration system 100, or to detect the temperature parameters and humidity parameters of the airflow flowing through any component in the air circulation refrigeration system 100.

[0084] One end of the anti-icing flow path 300 is in communication with a high-temperature and high-pressure gas source, and the other end of the anti-icing flow path 300 is in communication with a flow line 210 between the cooling turbine 240 and the condenser 250 .

[0085] A temperature control member 310 is provided in the anti-icing flow path 300, and the temperature control member 310 may be a temperature control valve, so as to realize the control of the flow rate of the gas in the high-temperature and high-pressure gas source in the anti-icing flow path 300 by using the temperature control valve. The temperature control valve may include but is not limited to an electric temperature control valve, a temperature regulating valve, a temperature control regulating valve, an automatic temperature control valve, etc. It should be noted that the temperature control member 310 is in a normally closed state, that is, when there is no ice blockage in the air flow path 200, the temperature control member 310 is in a closed state. When there may be ice blockage in the air flow path 200 or ice blockage has occurred, the temperature control member 310 is controlled and rotated at a certain opening speed, so as to conduct the anti-icing flow path 300, wherein, by controlling the opening degree of the temperature control member 310, the ice blockage between the cooling turbine 240 and the condenser 250 can be de-iced. On the other hand, by opening the anti-icing flow path 300, the time for ice blockage to occur between the cooling turbine 240 and the condenser 250 can be prolonged, thereby effectively slowing down the freezing time inside the air flow path, preventing ice from forming in the air flow path, and improving the system reliability of the air circulation refrigeration system 100.

[0086] A controller 400 is also provided in the air circulation refrigeration system 100, and the controller 400 is electrically connected to the sensor 280 and the temperature control element 310. Specifically, the controller 400 is electrically connected to the pressure sensor 281, the pressure difference detection element 282 and the temperature and humidity sensor 283, respectively, to obtain the values ​​of various parameters (such as pressure value, pressure difference value, temperature value and humidity value, etc.) in the air circulation refrigeration system 100.

[0087] It should be noted that the controller 400 may adopt a control system in the prior art, as long as the control system can control various startup functions of the air circulation refrigeration system 100, and the specific structure type and specific control logic of the control system will not be repeated here.

[0088] like Figure 2 As shown, an exemplary embodiment of the present invention provides an anti-icing control method, which is applied to an air cycle refrigeration system 100 .

[0089] The anti-icing control method comprises the following steps:

[0090] Step S100: Acquire environmental parameters during the operation of the air circulation refrigeration system, where the environmental parameters at least include temperature parameters and humidity parameters of the gas in the air circulation refrigeration system.

[0091] Step S200: When it is determined according to environmental parameters that the air flow path needs to be anti-iced, an anti-icing control process is executed. During the anti-icing control process, a high-pressure and high-temperature air source is controlled to pass into the anti-icing flow path to perform anti-icing on the air flow path.

[0092] In step S100, the temperature parameters and humidity parameters of the air circulation refrigeration system 100 during operation are obtained based on the controller 400. Specifically, the outlet temperature value and outlet humidity value of the air circulation refrigeration system 100 can be detected by the temperature and humidity sensor 283 to obtain the corresponding outlet temperature value and outlet humidity value. It should be noted that the outlet temperature value and outlet humidity value of the air circulation refrigeration system 100 are the temperature value and humidity value of the air flow in the pipeline connected to the outlet end of the condenser 250.

[0093] In step S200, when the controller 400 compares the outlet temperature value and the outlet humidity value with the corresponding set temperature value according to the obtained outlet temperature value and the outlet humidity value, and then, when it is determined according to the comparison result that there may be ice blockage between the cooling turbine 240 and the condenser 250 in the air flow path 200, the controller 400 controls the anti-icing flow path 300 to perform the anti-icing control process. In the anti-icing control process, the anti-icing flow path 300 is controlled to be connected, so as to use the high-temperature and high-pressure gas in the high-temperature and high-pressure gas source flowing in the anti-icing flow path 300 to perform anti-icing treatment on the flow pipeline 210 between the cooling turbine 240 and the condenser 250, and eliminate the ice at the outlet of the cooling turbine 240 and inside the condenser 250.

[0094] In this example, the anti-icing flow path 300 can be used to effectively slow down the icing inside the air flow path 200, and prevent the circulation pipe 210 between the cooling turbine 240 and the condenser 250 in the air flow path 200 from freezing, thereby improving the system stability of the air circulation refrigeration system 100, ensuring the stability of the temperature of the gas at the outlet of the air circulation refrigeration system 100, and effectively improving the user's comfort and the user experience of the air circulation refrigeration system 100.

[0095] like Figure 3 As shown, in some embodiments, the anti-icing control process may include a first anti-icing control mode and a second anti-icing control mode with different anti-icing degrees.

[0096] Among them, during the anti-icing control process, the following methods can be used:

[0097] After the controller 400 obtains the outlet temperature value and the outlet humidity value, it compares the outlet temperature value with the first temperature value and the second temperature value, and compares the outlet humidity value with the set value, and determines whether to execute the first anti-icing control mode or the second anti-icing control mode based on the comparison result.

[0098] When the outlet temperature value is greater than or equal to the second temperature value and less than the first temperature value, and the outlet humidity value is greater than or equal to the set value, it indicates that the moisture content of the gas entering the air circulation refrigeration system 100 is too high. During the operation of the air circulation refrigeration system 100, the probability of ice blockage in the cooling turbine 240 and the condenser 250 is relatively small, but ice blockage may occur, and anti-icing treatment needs to be intervened in advance. At this time, the controller 400 controls the anti-icing flow path 300 to execute the first anti-icing control mode.

[0099] The range of the first temperature value and the second temperature value is [-15°C, 10°C), but the first temperature value is greater than the second temperature value. The range of the set value is 1.1 to 1.5 times the moisture content allowed to be discharged from the gas in the air circulation refrigeration system 100. For example, when the moisture content allowed to be discharged from the gas in the air circulation refrigeration system 100 is 30%, the range of the set value can be between 33% and 45%.

[0100] When the outlet temperature value is less than the second temperature value, and the outlet humidity value is greater than or equal to the set value, it indicates that the moisture content of the gas entering the air circulation refrigeration system 100 is too high. During the operation of the air circulation refrigeration system 100, there is a high probability of ice blockage in the cooling turbine 240 and the condenser 250, and anti-icing treatment needs to be intervened in advance. At this time, the controller 400 controls the anti-icing flow path 300 to execute the second anti-icing control mode.

[0101] like Figure 3 As shown, in some embodiments, the first anti-icing control mode may be implemented by the following method:

[0102] The controller 400 controls the temperature control component 310 to operate at a first opening speed, and controls the temperature control component 310 to perform a first compensation control according to the outlet humidity value, so that the anti-icing flow path 300 is gradually opened, and the outlet temperature value of the gas processed by the condenser 250 is gradually increased, so that the outlet temperature value can be increased to a first numerical range until the opening degree of the temperature control component 310 reaches the first opening degree.

[0103] In a specific example, the value range of the first opening is 10° to 40°, wherein the preferred value range of the first opening is 15° to 25°.

[0104] The first numerical range is in the range of 1°C to 10°C.

[0105] The value range of the first opening speed includes 0.5 to 4.15 degrees per second, that is, the controller 400 can control the temperature control component 310 to open at any value between 0.5 and 4.15 degrees per second. During the opening process, the opening speed of the temperature control component 310 is compensated based on the first compensation control, wherein the temperature control component 310 can be controlled to increase the opening speed based on the first opening speed with a first acceleration value, and the first acceleration value is related to the outlet humidity value.

[0106] Specifically, the first acceleration value i1 is the product of the outlet humidity value and the first compensation coefficient k1, that is, the first acceleration value i1=k1×outlet humidity value, wherein the corresponding value range of the first acceleration value i1 is 0.1 to 1 degree / second, and the corresponding value range of the first compensation coefficient k1 is 1.0 to 1.5.

[0107] When the opening adjustment value of the temperature control element 310 reaches the first opening, the outlet temperature value of the gas processed by the condenser 250 is obtained in real time based on the temperature and humidity sensor 283. When the outlet temperature value of the gas processed by the condenser 250 is greater than or equal to the first value, the operation of the first anti-icing control mode is stopped, wherein the first value is greater than the first temperature value. At the same time, the controller 400 controls the temperature control element 310 to be closed, so that the anti-icing flow path 300 is closed.

[0108] The value range of the first value may include [-10°C, 15°C).

[0109] In this example, when the obtained outlet temperature value is greater than or equal to the second temperature value and less than the first temperature value, and the outlet humidity value is greater than the set value, it indicates that the moisture content of the gas entering the air circulation refrigeration system 100 at this time is too high. During the operation of the air circulation refrigeration system 100, the probability of ice blockage in the cooling turbine 240 and the condenser 250 is relatively small, but there is also a situation where ice blockage occurs, and anti-icing treatment needs to be intervened in advance. At this time, by adjusting the opening speed of the opening of the temperature control component 310, and performing the first anti-icing treatment on the cooling turbine 240 and the condenser 250 through the high-temperature and high-pressure airflow in the high-temperature and high-pressure air source, ice blockage between the cooling turbine 240 and the condenser 250 is effectively prevented, and the freezing time is extended, thereby effectively improving the system stability of the air circulation refrigeration system 100, ensuring the stability of the temperature of the gas at the outlet of the air circulation refrigeration system 100, and effectively improving the user's comfort and the user experience of the air circulation refrigeration system 100.

[0110] like Figure 3 As shown, in some embodiments, the second anti-icing control mode may be implemented by the following method:

[0111] The controller 400 controls the temperature control component 310 to operate at a second opening speed, and controls the temperature control component 310 to perform a second compensation control according to the outlet humidity value, so that the anti-icing flow path 300 is gradually opened, and the outlet temperature value of the gas processed by the condenser 250 is gradually increased, so that the outlet temperature value can be increased to a second numerical range until the opening degree of the temperature control component 310 reaches the second opening degree.

[0112] In a specific example, the second opening degree has a value range of 10° to 50°, wherein the preferred value range of the second opening degree is 15° to 35°.

[0113] The second numerical range is 3°C to 15°C.

[0114] The second opening speed has a value range of 0.25 to 4.15 degrees per second, that is, the controller 400 can control the temperature control element 310 to open at any value between 0.25 and 4.15 degrees per second. It should be noted that the second opening speed is greater than the first opening speed.

[0115] During the opening process, the opening speed of the temperature control component 310 is compensated and controlled based on the second compensation control, wherein the temperature control component 310 can be controlled to increase the opening speed based on the second opening speed with a second acceleration value, and the second acceleration value is related to the outlet humidity value.

[0116] Specifically, the second acceleration value i2 is the product of the outlet humidity value and the second compensation coefficient k2, that is, the second acceleration value i2=k2×outlet humidity value, wherein the corresponding value range of the second acceleration value i2 is 0.1 to 1 degrees / second, and the corresponding value range of the second compensation coefficient k2 is 1.01 to 1.55.

[0117] When the opening adjustment value of the temperature control element 310 reaches the second opening, the outlet temperature value of the gas processed by the condenser 250 is obtained in real time based on the temperature and humidity sensor 283. When the outlet temperature value of the gas processed by the condenser 250 is greater than or equal to the second value, the operation of the second anti-icing control mode is stopped, wherein the second value is greater than the first temperature value. At the same time, the controller 400 controls the temperature control element 310 to be closed, so that the anti-icing flow path 300 is closed.

[0118] The value range of the second value may include [-10°C, 15°C).

[0119] In this example, when the obtained outlet temperature value is less than the second temperature value, and the outlet moisture content is greater than the set value, it indicates that the moisture content of the gas entering the air circulation refrigeration system 100 at this time is too high. During the operation of the air circulation refrigeration system 100, there is a high probability that ice blockage will occur in the cooling turbine 240 and the condenser 250, and anti-icing treatment needs to be intervened in advance. At this time, by adjusting the opening speed of the temperature control component 310, and by using the high-temperature and high-pressure airflow in the high-temperature and high-pressure air source, the cooling turbine 240 and the condenser 250 are subjected to a second anti-icing treatment, thereby effectively preventing ice blockage between the cooling turbine 240 and the condenser 250, extending the freezing time, and effectively improving the system stability of the air circulation refrigeration system 100, ensuring the stability of the temperature of the gas at the outlet of the air circulation refrigeration system 100, and thereby effectively improving the user's comfort and the user experience of the air circulation refrigeration system 100.

[0120] like Figure 3 As shown, in some embodiments, the anti-icing control process also includes a de-icing mode. That is, when ice blockage has occurred between the cooling turbine 240 and the condenser 250 in the air flow path 200, the ice blockage needs to be de-iced through the anti-icing flow path 300.

[0121] When the outlet temperature value acquired by the controller 400 is greater than or equal to the first temperature value, it is determined whether the air flow path meets the deicing condition.

[0122] In one example, a first pressure difference value between the inlet and outlet of the condenser 250 can be obtained by the pressure difference detection element 282 , that is, the first pressure difference value is used to characterize the pressure difference between the outlet of the cooling turbine 240 and the outlet of the condenser 250 .

[0123] When the first pressure difference is greater than or equal to the first set value, it indicates that ice blockage exists on the flow pipe 210 between the cooling turbine 240 and the condenser 250. The value range of the first set value includes (8-30) kPa.

[0124] At this time, the temperature control element 310 can be controlled to open at a set speed to open the anti-icing flow path 300, so that the high-temperature and high-pressure gas in the high-temperature and high-pressure gas source directly acts on the flow pipeline 210 between the cooling turbine 240 and the condenser 250, and de-ices the ice blockage at this position. The value range of the set speed can be 0.05 to 4.15 degrees per second.

[0125] After the anti-icing flow path 300 is open for a period of time, a second pressure difference value between the inlet and outlet of the condenser 250 is obtained based on the pressure difference detection element 282 .

[0126] When the second pressure difference is less than the second set value, the de-icing mode is exited. The second set value has a value range of (5-20) kPa, wherein the second set value is less than the first set value.

[0127] like Figure 3 As shown, in some embodiments, during the operation of the de-icing mode, the controller 400 obtains the operation time of the de-icing mode.

[0128] When the operation time is greater than or equal to the second time but less than the first time, the second anti-icing control mode is operated on air flow path 200 .

[0129] When the operation time is less than the second time, the first anti-icing control mode is operated on the air flow path 200, wherein the value range of the first time includes 15min~30min, the value range of the second time includes 3min~15min, but the second time is less than the first time.

[0130] An exemplary embodiment of the present invention further provides an electronic device, which includes a processor (not shown in the figure) and a memory (not shown in the figure) connected to the processor. The memory is used to store one or more computer executable instructions. The computer executable instructions can be called by the processor to execute the anti-icing control method in the above embodiment.

[0131] An exemplary embodiment of the present invention further provides an air circulation refrigeration system. The air circulation refrigeration system is controlled by the anti-icing control method in any of the above embodiments; or has the electronic device in the above embodiments.

[0132] In the above example, based on the implementation of the anti-icing control method of any of the above embodiments, the use of the anti-icing flow path 300 can effectively slow down the icing inside the air flow path 200, and prevent the circulation pipe 210 between the cooling turbine 240 and the condenser 250 in the air flow path 200 from freezing, thereby improving the system stability of the air circulation refrigeration system 100, ensuring the stability of the temperature of the gas at the outlet of the air circulation refrigeration system 100, and then effectively improving the user's comfort and the user experience of the air circulation refrigeration system 100.

[0133] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not disclosed by the present invention. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0134] It should be understood that the present invention is not limited to the exact construction that has been described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. An anti-icing control method is applied to an air circulation refrigeration system, wherein the air circulation refrigeration system comprises an air flow path for processing a high-temperature and high-pressure air source and an anti-icing flow path, wherein the anti-icing flow path is connected to the high-temperature and high-pressure air source, and the anti-icing flow path is used to perform anti-icing treatment on the air flow path when anti-icing treatment is required, and is characterized in that: The anti-icing control method comprises: Acquiring environmental parameters during the operation of the air circulation refrigeration system, wherein the environmental parameters at least include temperature parameters and humidity parameters of gas in the air circulation refrigeration system; When it is determined according to the environmental parameters that the air flow path needs to be anti-iced, an anti-icing control process is performed. During the anti-icing control process, the high-pressure and high-temperature air source is controlled to pass into the anti-icing flow path to perform anti-icing on the air flow path.

2. The anti-icing control method according to claim 1, characterized in that: The anti-icing control process includes a first anti-icing control mode and a second anti-icing control mode with different degrees of anti-icing; The environmental parameters include an outlet temperature value and an outlet humidity value at the outlet of the air circulation refrigeration system; A temperature control element is provided on the anti-icing flow path, and the temperature control element is used to open or close the anti-icing flow path; When it is determined according to the environmental parameters that the air flow path needs to be anti-iced, executing the anti-icing control process includes: When the outlet temperature value is greater than or equal to the second temperature value and less than the first temperature value, and the outlet humidity value is greater than or equal to the set value, executing the first anti-icing control mode, wherein the first temperature value is greater than the second temperature value; When the outlet temperature value is less than a second temperature value and the outlet humidity value is greater than or equal to the set value, the second anti-icing control mode is executed, wherein the opening speed of the temperature control component in the second anti-icing control mode is greater than the opening speed of the temperature control component in the first anti-icing control mode.

3. The anti-icing control method according to claim 2, characterized in that: The first anti-icing control mode includes: The temperature control element is controlled to operate at a first opening speed, and the temperature control element is controlled to perform a first compensation control according to the outlet humidity value until the opening degree of the temperature control element reaches a first opening degree, so that the outlet temperature value is increased to a first numerical range.

4. The anti-icing control method according to claim 3, characterized in that: The first opening speed has a value range of 0.5 to 4.15 degrees per second.

5. The anti-icing control method according to claim 4, characterized in that: The first compensation control comprises: The temperature control element is controlled to increase the opening speed by a first acceleration value based on the first opening speed, wherein the first acceleration value is related to the outlet humidity value.

6. The anti-icing control method according to claim 5, characterized in that: The first acceleration value is the product of the outlet humidity value and a first compensation coefficient.

7. The anti-icing control method according to claim 3, characterized in that: After the step of setting the opening value of the temperature control to a first opening degree, the first anti-icing control mode further includes: When the increased outlet temperature value is greater than or equal to a first value, the operation of the first anti-icing control mode is stopped, wherein the first value is greater than the first temperature value.

8. The anti-icing control method according to claim 2, characterized in that: The second anti-icing control mode includes: The temperature control component is controlled to operate at a second opening speed, and the temperature control component is controlled to perform a second compensation control according to the outlet humidity value, until the opening value of the temperature control component reaches a second opening degree, so that the outlet temperature value is increased to a second value range.

9. The anti-icing control method according to claim 8, characterized in that: The value range of the second opening speed includes: 0.25 to 4.15 degrees per second.

10. The anti-icing control method according to claim 8, characterized in that: The second compensation control comprises: The temperature control element is controlled to increase the opening speed by a second acceleration value based on the second opening speed, wherein the second acceleration value is related to the outlet humidity value.

11. The anti-icing control method according to claim 10, characterized in that: The second acceleration value is the product of the outlet humidity value and a second compensation coefficient.

12. The anti-icing control method according to claim 8, characterized in that: After the step of reaching a second opening value of the temperature control element, the second anti-icing control mode further includes: When the increased outlet temperature value is greater than or equal to a second value, the operation of the second anti-icing control mode is stopped, wherein the second value is greater than the first temperature value.

13. The anti-icing control method according to claim 2, characterized in that: The anti-icing control process also includes a de-icing mode; When the outlet temperature value is greater than or equal to the first temperature value, determining whether the air flow path meets the deicing condition; If the de-icing condition is met, the de-icing mode is operated.

14. The anti-icing control method according to claim 13, characterized in that: A pressure difference detection element is provided in the air flow path, and the pressure difference detection element is used to obtain the pressure difference values ​​at different positions in the air flow path; The determining whether the air flow path meets the deicing condition includes: Acquiring a first pressure difference value through the pressure difference detection component; When the first pressure difference value is greater than or equal to a first set value, determining that the air circulation refrigeration system meets the deicing condition; The operating the de-icing mode comprises: Controlling the temperature control element to open at a set speed so as to make the anti-icing flow path conductive; Acquiring a second pressure difference value based on the pressure difference detection component; When the second pressure difference value is less than a second set value, the de-icing mode is exited, wherein the second set value is less than the first set value.

15. The anti-icing control method according to claim 14, characterized in that: The anti-icing control method further comprises: During the operation of the deicing mode, obtaining the operation time of the deicing mode; It is determined whether to operate the first anti-icing control mode or the second anti-icing control mode for the air cycle refrigeration system according to the operating time.

16. The anti-icing control method according to claim 15, characterized in that: The step of determining, according to the operation time, to operate the first anti-icing control mode or the second anti-icing control mode for the air flow path comprises: When the operation time is greater than or equal to a second time and less than the first time, operating the second anti-icing control mode on the air flow path; and, The first anti-icing control mode is operated on the air flow path when the operation time is less than the second time, wherein the second time is less than the first time.

17. An electronic device, characterized in that: The electronic device comprises: a memory for storing one or more computer executable instructions; A processor, configured to call and execute computer executable instructions in the memory, thereby implementing the method according to any one of claims 1 to 16.

18. An air circulation refrigeration system, characterized in that: The method according to any one of claims 1 to 16 is used for control, or the electronic device according to claim 17 is provided.

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