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

Abstract

The present application relates to air refrigeration equipment technical field, especially to a kind of ice control method, electronic equipment and air circulation refrigeration system.The air circulation refrigeration system includes the air flow path of high temperature high pressure gas source processing and anti-icing flow path, anti-icing flow path is communicated with high temperature high pressure gas source, and anti-icing flow path is used to carry out anti-icing treatment to air flow path in the case where it needs to carry out anti-icing treatment, and the anti-icing control method includes: obtaining environmental parameter in the running process of air circulation refrigeration system;In the case where air flow path needs to carry out anti-icing treatment according to environmental parameter, anti-icing control process is executed, and in anti-icing control process, high pressure high temperature gas source is controlled to be introduced into anti-icing flow path, to carry out anti-icing treatment to air flow path.In the present application, the internal icing time of air flow path can be effectively slowed down by using anti-icing flow path, to prevent icing in air flow path, thereby improving the system reliability of air circulation refrigeration system.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air refrigeration equipment, in particular to an ice prevention control method, an electronic device and an air circulation refrigeration system. BACKGROUND

[0002] The air circulation refrigeration system generally comprises a compressor, a condenser, an expansion valve and an evaporator, and the basic principle of the air circulation refrigeration system is to compress the gaseous refrigerant into high-temperature and high-pressure gas by the compressor, then send the high-temperature and high-pressure gas to the condenser for cooling, and the cooled high-temperature and high-pressure gas becomes medium-temperature and high-pressure liquid refrigerant, after the medium-temperature and high-pressure liquid refrigerant is throttled and decompressed by the expansion valve, the medium-temperature and high-pressure liquid refrigerant becomes low-temperature and low-pressure gas-liquid mixture, and finally, the low-temperature and low-pressure gas-liquid mixture is vaporized in the evaporator by absorbing heat in the air, and returns to the compressor for continuous circulation, so as to realize the temperature adjustment of the air.

[0003] The air circulation refrigeration system also comprises other components, such as a turbine, a water separator, a fan, a compressor and various sensors. One of the methods to improve the refrigeration capacity of the air circulation refrigeration system is to use high-pressure water removal, that is, to remove the water vapor in the air before it enters the turbine, and the efficiency of high-pressure water removal is generally about 90%.

[0004] However, in some high-humidity working environments, although the efficiency of the water separator can still remain at about 90%, the absolute humidity entering the turbine in the system is still higher than the design point of the air circulation refrigeration system, thereby causing icing at the turbine outlet and the condenser, leading to ice blocking between the turbine outlet and the condenser, affecting the stability of the operation of the air circulation refrigeration system, and even causing the system to burn out in severe cases. On the other hand, in order to ensure the reliable operation of the air circulation refrigeration system, a bypass ice removal pipeline is provided in the air circulation refrigeration system, and when the gas pressure at the turbine outlet and the condenser outlet falls to a certain value, the bypass ice removal pipeline is opened to remove ice at the ice blocking position through the bypass ice removal pipeline. However, due to the high humidity of the high-temperature and high-pressure gas entering the air circulation refrigeration system, which exceeds the ice prevention capacity of the air circulation refrigeration system, the air circulation refrigeration system is frequently iced, causing the temperature of the air at the outlet of the air circulation refrigeration system to fluctuate, and reducing the comfort of the user. SUMMARY

[0005] Therefore, the present application provides an ice prevention control method, an electronic device and an air circulation refrigeration system to solve the problems of system damage and reduced user comfort caused by ice blocking in the existing air circulation refrigeration system.

[0006] The first aspect of the embodiments of the present application provides an ice prevention control method applied to an air circulation refrigeration system, the air circulation refrigeration system comprising an air flow path for processing a high-temperature and high-pressure gas source and an ice prevention flow path, the ice prevention flow path being in communication with the high-temperature and high-pressure gas source, and the ice prevention flow path being used for performing ice prevention treatment on the air flow path when ice prevention treatment is required, the ice prevention control method comprising:

[0007] acquiring an environmental parameter in a running process of the air circulation refrigeration system, the environmental parameter at least comprising a temperature parameter and a humidity parameter of a gas in the air circulation refrigeration system;

[0008] in a case where it is determined according to the environmental parameter that the air flow path needs to be treated, performing an ice prevention control process, in which the high-temperature and high-pressure gas source is controlled to be introduced into the ice prevention flow path to perform ice prevention treatment on the air flow path.

[0009] In some embodiments, the ice prevention control process comprises a first ice prevention control mode and a second ice prevention control mode with different ice prevention degrees;

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

[0011] The ice prevention flow path is provided with a temperature control member for conducting or closing the ice prevention flow path;

[0012] The ice prevention control process comprises:

[0013] In a case where the outlet temperature value is greater than or equal to a second temperature value and less than a first temperature value, and the outlet humidity value is greater than or equal to a set value, the first ice prevention control mode is performed, wherein the first temperature value is greater than the second temperature value;

[0014] In a case where 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, the second ice prevention control mode is performed, wherein an opening speed of the temperature control member in the second ice prevention control mode is greater than an opening speed of the temperature control member in the first ice prevention control mode.

[0015] In some embodiments, the first ice prevention control mode comprises:

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

[0017] In some implementations, the first opening speed ranges from 0.5 to 4.15 degrees per second.

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

[0019] The temperature control component is controlled to increase its 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 implementations, the first acceleration value is the product of the outlet humidity value and the first compensation coefficient.

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

[0022] When the improved outlet temperature value 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.

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

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

[0025] In some implementations, the second opening speed ranges from 0.25 to 4.15 degrees per second.

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

[0027] The temperature control element is controlled to increase its 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 implementations, the second acceleration value is the product of the outlet humidity value and the second compensation coefficient.

[0029] In some embodiments, after the step of reaching the second opening value of the temperature controller, the second anti-icing control mode further includes:

[0030] When the improved outlet temperature value 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.

[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, it is determined whether the air flow path meets the de-icing conditions.

[0033] If the de-icing conditions are met, the de-icing mode will be run.

[0034] In some embodiments, a differential pressure detection device is provided in the air flow path, and the differential pressure detection device is used to obtain the differential pressure value at different positions in the air flow path;

[0035] Determining whether the airflow path meets the de-icing conditions includes:

[0036] The first differential pressure value is obtained through the differential pressure detection device;

[0037] When the first pressure difference value is greater than or equal to the first set value, it is determined that the air circulation refrigeration system meets the de-icing condition;

[0038] The operation of the de-icing mode includes:

[0039] The temperature control element is activated at a set rotation speed to ensure the anti-icing flow path is open.

[0040] The second differential pressure value is obtained based on the differential pressure detection device;

[0041] When the second differential pressure value is less than the second set value, the operation of the de-icing mode is terminated, 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 de-icing mode, the running time of the de-icing mode is obtained;

[0044] Based on the running time, determine whether to operate the first anti-icing control mode or the second anti-icing control mode on the air circulation refrigeration system.

[0045] In some implementations, determining whether to operate the first anti-icing control mode or the second anti-icing control mode on the airflow path based on the operating time includes:

[0046] When the running time is greater than or equal to the second time and less than the first time, the second anti-icing control mode is activated for the airflow path; and,

[0047] When the running time is less than the second time, the first anti-icing control mode is applied to the airflow path, wherein the second time is less than the first time.

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

[0049] Memory is used to store one or more computer-executable instructions;

[0050] A processor for calling and executing computer-executable instructions in the memory to implement the method as described in any of the first aspects.

[0051] A third aspect of the present invention provides an air circulation cooling system that is controlled by the method described in the first aspect, or has electronic equipment as described in the second aspect.

[0052] Compared with the prior art, the main advantages of the present invention are as follows:

[0053] The anti-icing control method, electronic device, and air circulation refrigeration system of the present invention include an air circulation refrigeration system comprising an air flow path for processing a high-temperature, high-pressure gas source and an anti-icing flow path. The anti-icing flow path is connected to the high-temperature, high-pressure gas source. When anti-icing treatment is required in the air flow path, it is performed using the anti-icing flow path. The anti-icing control method includes: acquiring environmental parameters during the operation of the air circulation refrigeration system, including at least other temperature and humidity parameters within the air circulation refrigeration system; and then, if it is determined based on the environmental parameters that anti-icing treatment is required in the air flow path, executing the anti-icing control process. During the anti-icing control process, the high-pressure, high-temperature gas source is controlled to enter 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 effectively reduce icing within the air flow path, preventing icing and thus improving the system stability of the air circulation refrigeration system. This ensures the stability of the gas temperature at the outlet of the air circulation refrigeration system, thereby effectively improving user comfort and the user experience of the air circulation refrigeration system. Attached Figure Description

[0054] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0055] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

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

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

[0058] Figure 3 This is a logic judgment flowchart of an anti-icing control method according to an embodiment of the present invention. Attached image description:

[0060] 100. Air circulation refrigeration system;

[0061] 200. Airflow path; 210. Flow duct; 211. Third duct; 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 duct; 272. Second duct; 280. Sensor; 281. Pressure sensor; 282. Differential pressure detection element; 283. Temperature and humidity sensor; 290. Exhaust fan;

[0062] 300. Anti-icing flow path; 310. Temperature control components;

[0063] 400. Controller. Detailed Implementation

[0064] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0065] The terminology used in the embodiments of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms “a,” “the,” and “the” used in the embodiments of this invention and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. “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 merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0067] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0068] The 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 intended 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 cooling system 100, wherein the air circulation cooling system 100 may be a three-wheel high-pressure dehydration system, or it may be a two-wheel air circulation cooling system.

[0070] The air circulation 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, high-pressure air source. The air flow path 200 includes a circulation pipe 210 and, mounted on the circulation pipe 210, 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.

[0071] The heat exchanger 220 includes a primary heat exchanger 221 and a secondary heat exchanger 222. An induced draft fan 290 is installed on the cold side of the primary heat exchanger 221 and the secondary heat exchanger 222. The induced draft fan 290 is used to draw in outside air and utilize the heat exchange process between the outside air and the primary heat exchanger 221 and the secondary heat exchanger 222 to cool down the primary heat exchanger 221 and the secondary heat exchanger 222, so as to ensure the normal operation of the primary heat exchanger 221 and the secondary heat exchanger 222.

[0072] The compressor 230 is installed on the flow line 210 between the primary heat exchanger 221 and the secondary heat exchanger 222. The high-temperature and high-pressure gas from the high-temperature and high-pressure gas source enters the primary heat exchanger 221 and is cooled to form a low-temperature and high-pressure gas. Then, the low-temperature and high-pressure gas enters the compressor 230 to be pressurized and heated, and then enters the secondary heat exchanger 222 for cooling.

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

[0074] After being cooled by the secondary heat exchanger 222, the gas enters the regenerator 260, which reheats the cooled gas. A portion of the reheated gas passes through the condenser 250, causing the moisture in the gas to condense, resulting in the presence of condensate in this portion of the gas. Subsequently, the gas containing condensate passes through the water separator 270, which separates approximately 90% of the water. The liquid water is then sprayed into the cold-side inlet of the secondary heat exchanger 222 through the first pipe 271.

[0075] After being reheated and passing through the water separator 270, another portion of the gas will re-enter the regenerator 260 through the second pipeline 272 for reheating treatment. After being reheated, this portion of the gas will enter the cooling turbine 240. The gas passing through the water separator 270 and undergoing reheating treatment ensures that the air entering the cooling turbine 240 is free of liquid droplets, thereby ensuring the stable operation and efficiency of the cooling turbine 240.

[0076] It should be noted that the compressor 230 and the cooling turbine 240 operate coaxially. This coaxial operation is achieved through... Figure 1 The dashed line between the intermediate-pressure air compressor 230 and the cooling turbine 240 indicates this.

[0077] After passing through the water separator 270 and undergoing reheat treatment, the gas enters the cooling turbine 240. It then expands, depressurizes, and cools down, allowing the low-temperature, low-pressure gas to enter the cold side of the condenser 250 for heat exchange. This process restores the temperature of the low-temperature, low-pressure gas to around 0 degrees Celsius, making it available for customer use.

[0078] In this example and the examples below, the air circulation refrigeration system 100 is described with a three-stage high-pressure dehydration structure. That is, the induced draft fan 290, compressor 230 and cooling turbine 240 in the air circulation refrigeration system 100 operate coaxially.

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

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

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

[0082] A third pipe 211 is provided on the flow pipe 210 between the cooling turbine 240 and the condenser 250. The other end of the third pipe 211 is connected to a pipe that communicates with the outlet end of the condenser 250. By using the third pipe 211 in conjunction with the differential pressure detection element 282, the differential pressure detection element 282 can detect the differential pressure between the outlet end of the cooling turbine 240 and the outlet end of the condenser 250.

[0083] Temperature and humidity sensor 283 is used to detect the temperature and humidity parameters of the airflow at the outlet of condenser 250. It should be noted that other temperature sensors, humidity sensors, or temperature and humidity sensors may also be installed in the air circulation refrigeration system 100 to detect the temperature and humidity parameters of the high-temperature, high-pressure air source entering the air circulation refrigeration system 100, or to detect the temperature 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 connected to a high-temperature and high-pressure gas source, and the other end of the anti-icing flow path 300 is connected to the flow pipe 210 between the cooling turbine 240 and the condenser 250.

[0085] The anti-icing flow path 300 is equipped with a temperature control component 310, which can be a temperature control valve to control the flow rate of gas in the high-temperature, high-pressure gas source within the anti-icing flow path 300. This temperature control valve can include, but is not limited to, an electric temperature control valve, a temperature regulating valve, a temperature control regulating valve, or an automatic temperature control valve. It should be noted that the temperature control component 310 is normally closed; that is, it is closed when there is no ice blockage in the air flow path 200. However, when ice blockage may occur or has already occurred in the air flow path 200, the temperature control component 310 is controlled to rotate at a certain opening speed, thereby opening the anti-icing flow path 300. By controlling the opening degree of the temperature control component 310, de-icing can be performed on the ice blockage between the cooling turbine 240 and the condenser 250. On the other hand, the conduction of the anti-icing flow path 300 can prolong the time for ice blockage to occur between the cooling turbine 240 and the condenser 250, thereby effectively slowing down the icing time inside the air flow path, preventing ice formation inside the air flow path, and improving the system reliability of the air circulation refrigeration system 100.

[0086] The air circulation cooling system 100 also includes a controller 400, which is electrically connected to the sensor 280 and the temperature control unit 310. Specifically, the controller 400 is electrically connected to the pressure sensor 281, the differential pressure detection unit 282, and the temperature and humidity sensor 283 to acquire the values ​​of various parameters (such as pressure, differential pressure, temperature, and humidity) in the air circulation cooling system 100.

[0087] It should be noted that the controller 400 can be a control system in the existing technology, as long as the control system can control the various start-up functions of the air circulation refrigeration system 100. The specific structure and control logic of the control system will not be elaborated here.

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

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

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

[0091] Step S200: If it is determined from the environmental parameters that the air flow path needs to be anti-iced, execute the anti-icing control process. During the anti-icing control process, control the high-pressure high-temperature air source to enter the anti-icing flow path to perform anti-icing treatment on the air flow path.

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

[0093] In step S200, after the controller 400 obtains the outlet temperature and humidity values, it compares these values ​​with the corresponding set temperature values. Then, based on the comparison results, if it determines that there may be ice blockage between the cooling turbine 240 and the condenser 250 in the airflow path 200, the controller 400 controls the anti-icing flow path 300 to perform an anti-icing control process. During this process, the anti-icing flow path 300 is opened to utilize the high-temperature, high-pressure gas from the high-temperature, high-pressure gas source flowing through it to perform anti-icing treatment on the flow pipe 210 between the cooling turbine 240 and the condenser 250, eliminating ice buildup at the outlet of the cooling turbine 240 and inside the condenser 250.

[0094] In this example, the anti-icing flow path 300 can effectively reduce icing inside the air flow path 200, prevent icing in the flow pipe 210 between the cooling turbine 240 and the condenser 250 in the air flow path 200, thereby improving the system stability of the air circulation cooling system 100, ensuring the stability of the gas temperature at the outlet of the air circulation cooling system 100, and thus effectively improving user comfort and the user experience of the air circulation cooling 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 degrees of anti-icing.

[0096] The following methods can be used during the implementation of anti-icing control:

[0097] After the controller 400 acquires 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 results.

[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 condenser 250 is relatively small, but there is still a possibility of ice blockage. 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 first and second temperature values ​​both range from -15℃ to 10℃, but the first temperature value is greater than the second temperature value. The set value ranges from 1.1 to 1.5 times the allowable moisture content of the gas discharged from the air circulation refrigeration system 100. For example, when the allowable moisture content of the gas discharged from the air circulation refrigeration system 100 is 30%, the set value can range from 33% to 45%.

[0100] When the outlet temperature is lower than the second temperature value and the outlet humidity 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 that ice blockage will easily occur in the cooling turbine 240 and 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 can be implemented using the following method:

[0102] The controller 400 controls the temperature control element 310 to operate at a first opening speed, and controls the temperature control element 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 value range, until the opening degree of the temperature control element 310 reaches the first opening degree.

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

[0104] The first numerical range is from 1℃ to 10℃.

[0105] The first opening speed ranges from 0.5 to 4.15 degrees Celsius per second, meaning the controller 400 can control the temperature control element 310 to open at any value between 0.5 and 4.15 degrees Celsius per second. During the opening process, the opening speed of the temperature control element 310 is compensated based on the first compensation control. Specifically, the temperature control element 310 can be controlled to increase its opening speed by a first acceleration value based on the first opening speed, and this 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, where 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] Specifically, after the temperature control unit 310 is adjusted to the first opening value, the outlet temperature of the gas processed by the condenser 250 is acquired in real time based on the temperature and humidity sensor 283. When the outlet temperature 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 unit 310 to shut down, thereby closing the anti-icing flow path 300.

[0108] The range of the first value can include [-10℃, 15℃].

[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 is too high. During the operation of the air circulation refrigeration system 100, the probability of ice blockage in the cooling turbine 240 and condenser 250 is relatively small, but ice blockage can still occur, 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 from the high-temperature and high-pressure air source to perform the first anti-icing treatment on the cooling turbine 240 and condenser 250, the ice blockage between the cooling turbine 240 and condenser 250 is effectively prevented, the icing time is extended, the system stability of the air circulation refrigeration system 100 is effectively improved, the temperature stability of the gas at the outlet of the air circulation refrigeration system 100 is guaranteed, and the user comfort and user experience of the air circulation refrigeration system 100 are effectively improved.

[0110] like Figure 3 As shown, in some embodiments, the second anti-icing control mode can be implemented using the following methods:

[0111] The controller 400 controls the temperature control element 310 to operate at a second opening speed, and controls the temperature control element 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 value range, until the opening degree of the temperature control element 310 reaches the second opening degree.

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

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

[0114] The second opening speed ranges from 0.25 to 4.15 degrees Celsius per second, meaning the controller 400 can control the temperature control element 310 to open at any value between 0.25 and 4.15 degrees Celsius 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. Specifically, the temperature control component 310 can be controlled to increase the opening speed by a second acceleration value based on the second opening speed. This 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, where the corresponding value range of the second acceleration value i2 is 0.1 to 1 degree / second, and the corresponding value range of the second compensation coefficient k2 is 1.01 to 1.55.

[0117] Specifically, after the temperature control unit 310 is adjusted to the second opening value, the outlet temperature of the gas processed by the condenser 250 is acquired in real time based on the temperature and humidity sensor 283. When the outlet temperature 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 unit 310 to shut down, thereby closing the anti-icing flow path 300.

[0118] The range of the second value can include [-10℃, 15℃].

[0119] In this example, when the obtained outlet temperature value is lower than the second temperature value and the outlet moisture content is higher than 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 condenser 250, requiring early intervention for anti-icing treatment. At this time, by adjusting the opening speed of the temperature control component 310 and using the high-temperature and high-pressure airflow from the high-temperature and high-pressure gas source to perform a second anti-icing treatment on the cooling turbine 240 and condenser 250, the ice blockage between the cooling turbine 240 and condenser 250 is effectively prevented, the icing time is extended, the system stability of the air circulation refrigeration system 100 is effectively improved, the temperature stability of the gas at the outlet of the air circulation refrigeration system 100 is guaranteed, and the user comfort and user experience of the air circulation refrigeration system 100 are effectively improved.

[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 airflow path 200, the anti-icing flow path 300 is used to de-ic the ice blockage.

[0121] Specifically, when the outlet temperature value obtained by the controller 400 is greater than or equal to the first temperature value, it is determined whether the air flow path meets the de-icing conditions.

[0122] In one example, a first differential pressure value between the inlet and outlet of the condenser 250 can be obtained by differential pressure detection element 282. That is, the first differential pressure 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 differential pressure value is greater than or equal to the first set value, it indicates that there is ice blockage in the flow pipe 210 between the cooling turbine 240 and the condenser 250. The range of the first set value includes (8~30) kPa.

[0124] At this time, the temperature control unit 310 can be activated at a set speed to open the anti-icing flow path 300, allowing the high-temperature, high-pressure gas from the high-temperature, high-pressure gas source to directly act on the flow pipe 210 between the cooling turbine 240 and the condenser 250, and to de-ice any ice blockage at that location. The set speed can be set between 0.05 and 4.15 degrees Celsius per second.

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

[0126] When the second differential pressure value is less than the second set value, the de-icing mode is exited. The range of the second set value is (5~20) kPa, where the second set value must be 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 acquires the running time of the de-icing mode.

[0128] When the running time is greater than or equal to the second time, but less than the first time, the second anti-icing control mode is activated for the airflow path 200.

[0129] When the running time is less than the second time, the first anti-icing control mode is activated for the airflow path 200. The value range of the first time is 15 min to 30 min, and the value range of the second time is 3 min to 15 min, but the second time is less than the first time.

[0130] An exemplary embodiment of the present invention also 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. These computer-executable instructions can be invoked by the processor to execute the anti-icing control method described in the above embodiment.

[0131] An exemplary embodiment of the present invention also provides an air circulation refrigeration system. This air circulation refrigeration system is controlled using the anti-icing control method described in any of the above embodiments; or, it may have the electronic equipment described in the above embodiments.

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

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

[0134] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. An anti-icing control method applied to an air circulation refrigeration system, the air circulation refrigeration system comprising an air flow path for processing a high-temperature, high-pressure gas source and an anti-icing flow path, the anti-icing flow path being connected to the high-temperature, high-pressure gas source, and the anti-icing flow path being used to perform anti-icing treatment on the air flow path when anti-icing treatment is required, characterized in that, The anti-icing control method includes: The environmental parameters during the operation of the air circulation refrigeration system are obtained, and the environmental parameters include at least the temperature and humidity parameters of the gas in the air circulation refrigeration system. If it is determined from the environmental parameters that the airflow path needs to be anti-iced, an anti-icing control process is executed. During the anti-icing control process, the high-temperature and high-pressure air source is controlled to be introduced into the anti-icing flow path to perform anti-icing treatment on the airflow path. The anti-icing control process includes a first anti-icing control mode and a second anti-icing mode with different degrees of anti-icing; The environmental parameters include the outlet temperature and outlet humidity values ​​at the outlet of the air circulation refrigeration system. When it is determined from the environmental parameters that the airflow path requires anti-icing treatment, the anti-icing control process is executed, including: 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, the first anti-icing control mode is executed, wherein the first temperature value is greater than the second temperature value; 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, 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.

2. The anti-icing control method according to claim 1, characterized in that, 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. 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 the first opening degree, so that the outlet temperature value is increased to a first numerical range.

3. The anti-icing control method according to claim 2, characterized in that, The first opening speed ranges from 0.5 to 4.15 degrees per second.

4. The anti-icing control method according to claim 3, characterized in that, The first compensation control includes: The temperature control component is controlled to increase its 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.

5. The anti-icing control method according to claim 4, characterized in that, The first acceleration value is the product of the outlet humidity value and the first compensation coefficient.

6. The anti-icing control method according to claim 2, characterized in that, After the step of setting the opening value of the temperature control to the first opening degree, the first anti-icing control mode further includes: When the improved outlet temperature value 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.

7. The anti-icing control method according to claim 1, characterized in that, 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. The second anti-icing control mode includes: The temperature control element is controlled to operate at a second opening speed, and the temperature control element is controlled to perform a second compensation control according to the outlet humidity value, until the opening value of the temperature control element is a second opening value, so that the outlet temperature value is increased to a second numerical range.

8. The anti-icing control method according to claim 7, characterized in that, The second opening speed ranges from 0.25 to 4.15 degrees per second.

9. The anti-icing control method according to claim 7, characterized in that, The second compensation control includes: The temperature control element is controlled to increase its 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.

10. The anti-icing control method according to claim 9, characterized in that, The second acceleration value is the product of the outlet humidity value and the second compensation coefficient.

11. The anti-icing control method according to claim 7, characterized in that, After the step of reaching the second opening value of the temperature controller, the second anti-icing control mode further includes: When the improved outlet temperature value 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.

12. The anti-icing control method according to claim 1, 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, it is determined whether the air flow path meets the de-icing conditions. If the de-icing conditions are met, the de-icing mode will be run.

13. The anti-icing control method according to claim 12, characterized in that, A differential pressure detection device is provided in the air flow path, and the differential pressure detection device is used to obtain the differential pressure value at different positions in the air flow path; Determining whether the airflow path meets the de-icing conditions includes: The first differential pressure value is obtained through the differential pressure detection device; When the first pressure difference value is greater than or equal to the first set value, it is determined that the air circulation refrigeration system meets the de-icing condition; The operation of the de-icing mode includes: The temperature control element is activated at a set rotation speed to ensure the anti-icing flow path is open. The second differential pressure value is obtained based on the differential pressure detection device; When the second differential pressure value is less than the second set value, the operation of the de-icing mode is terminated, wherein the second set value is less than the first set value.

14. The anti-icing control method according to claim 13, characterized in that, The anti-icing control method also includes: During the operation of the de-icing mode, the running time of the de-icing mode is obtained; Based on the running time, determine whether to operate the first anti-icing control mode or the second anti-icing control mode on the air circulation refrigeration system.

15. The anti-icing control method according to claim 14, characterized in that, The step of determining whether to operate the first anti-icing control mode or the second anti-icing control mode on the airflow path based on the operating time includes: When the running time is greater than or equal to the second time and less than the first time, the second anti-icing control mode is activated for the airflow path; and, When the running time is less than the second time, the first anti-icing control mode is applied to the airflow path, wherein the second time is less than the first time.

16. An electronic device, characterized in that, The electronic device includes: Memory is used to store one or more computer-executable instructions; A processor for calling and executing computer-executable instructions in the memory to implement the method as described in any one of claims 1 to 15.

17. An air circulation refrigeration system, characterized in that, Controlled by any one of claims 1 to 15, or having an electronic device as described in claim 16.

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