Evaporator air inlet amount adjusting method and device and refrigeration equipment

Abstract

The invention discloses an evaporator air inlet amount adjusting method and device and refrigeration equipment. The method is applied to the refrigeration equipment, the refrigeration equipment comprises an evaporator, a condenser and a compressor, the evaporator comprises a plurality of evaporation flow paths, the air inlet side of each evaporation flow path is provided with an air quantity adjusting plate in a one-to-one correspondence mode, and the method comprises the steps that the temperature of the outlet end of each evaporation flow path is obtained; the opening degree of the corresponding air volume adjusting plate is adjusted according to the temperature of the outlet end of each evaporation flow path, and then the air inlet volume of each evaporation flow path is adjusted. According to the invention, the temperature balance of the outlet end of each evaporation flow path can be ensured, so that the refrigeration efficiency is improved, the energy consumption is reduced, and the stability of the refrigeration equipment is improved.

Description

Technical Field

[0001] The present invention relates to the field of refrigeration technology, and in particular to an evaporator air inlet volume adjustment method, device and refrigeration equipment. Background Art

[0002] In commercial and industrial applications, when the cooling capacity of refrigeration equipment is required to be high, the evaporator is generally designed with multiple evaporation flow paths to meet the temperature control requirements. The refrigerant of this refrigeration equipment enters the evaporator through multiple evaporation flow paths to absorb ambient heat. When the refrigerant flow is not accurately regulated or there is a flow restriction, some evaporation flow paths may not receive enough refrigerant, resulting in uneven temperature. When the refrigerant pipeline is improperly designed or installed or there is a leak, it may also cause pressure loss or uneven flow of the refrigerant when it flows through the evaporator, resulting in uneven temperature at the outlet of each flow path.

[0003] When the outlet temperatures of the evaporators are not balanced, on the one hand, the cooling effect of the refrigeration equipment will be affected, resulting in reduced cooling efficiency, and some evaporation paths may not be able to operate normally due to excessively high temperatures, resulting in energy efficiency loss. On the other hand, in order to compensate for the problem of insufficient cooling capacity caused by the uneven outlet temperatures of the paths, the air conditioning refrigeration equipment may need to increase the operating time or increase the compressor load, resulting in increased energy consumption and thus higher operating costs.

[0004] Currently, no effective solution has been proposed to solve the problem that the outlet temperatures of the evaporation flow paths of the evaporator of the refrigeration equipment in the prior art are uneven, resulting in reduced refrigeration efficiency, increased energy consumption and poor stability. Summary of the invention

[0005] An evaporator air inlet volume adjustment method, device and refrigeration equipment are provided in the embodiments of the present invention to solve the problem that the outlet temperatures of the various evaporation flow paths of the evaporator of the refrigeration equipment in the prior art are uneven, resulting in reduced refrigeration efficiency, increased energy consumption and poor stability.

[0006] In order to solve the above technical problems, the present invention provides an evaporator inlet air volume adjustment method, which is applied to a refrigeration device, wherein the refrigeration device includes an evaporator, a condenser and a compressor, wherein the evaporator includes a plurality of evaporation flow paths, and an air volume adjustment plate is provided on the air inlet side of each evaporation flow path in a one-to-one correspondence manner, and the method includes:

[0007] Obtaining the outlet temperature of each evaporation flow path;

[0008] The opening of the corresponding air volume regulating plate is adjusted according to the outlet temperature of each evaporation flow path, thereby adjusting the air inlet volume of each evaporation flow path.

[0009] Furthermore, the opening of the corresponding air volume regulating plate is adjusted according to the outlet temperature of each evaporation flow path, thereby adjusting the air inlet volume of each evaporation flow path, including:

[0010] Determining the temperature range of the outlet end of the evaporation flow path;

[0011] If the outlet temperature of the evaporation flow path is within a preset range, the opening of the air volume adjustment plate is controlled to remain unchanged, thereby keeping the air volume of the evaporation flow path unchanged; wherein the preset range is determined according to the outlet temperature of each evaporation flow path;

[0012] If the outlet temperature of the evaporation flow path is lower than the lower limit of the preset interval, the opening of the air volume adjustment plate corresponding to the evaporation flow path is controlled to increase, thereby increasing the air intake volume of the evaporation flow path;

[0013] If the outlet temperature of the evaporation flow path is higher than the upper limit of the preset interval, the opening of the air volume adjustment plate corresponding to the evaporation flow path is controlled to decrease, thereby reducing the air intake volume of the evaporation flow path.

[0014] Furthermore, the preset interval is determined according to the outlet temperature of each evaporation flow path, including:

[0015] Calculate the average value of the outlet temperature of each evaporation flow path;

[0016] Subtract a preset deviation value from the average value to obtain a lower limit of the preset interval;

[0017] The upper limit of the preset interval is obtained by adding the preset deviation value to the average value.

[0018] Furthermore, the method further comprises:

[0019] If the outlet temperature of the evaporation flow path is lower than the lower limit of the preset interval, the opening of the air volume adjustment plates corresponding to all high-temperature flow paths is controlled to decrease, thereby controlling the air inlet volume of all high-temperature flow paths to decrease; wherein the high-temperature flow path is an evaporation flow path whose outlet temperature is higher than the average value;

[0020] If the outlet temperature of the evaporation flow path is higher than the upper limit of the preset interval, the opening of the air volume adjustment plates corresponding to all low-temperature flow paths is controlled to increase, thereby controlling the air intake volume of all high-temperature flow paths to increase; wherein the low-temperature flow path is an evaporation flow path whose outlet temperature is lower than the average value.

[0021] Furthermore, before adjusting the opening of the corresponding air volume adjustment plate according to the outlet temperature of each evaporation flow path, the method further includes:

[0022] Determining the opening adjustment amount of the corresponding air volume adjustment plate according to the outlet temperature of each evaporation flow path;

[0023] The opening of the air volume adjustment plate is adjusted according to the opening adjustment amount.

[0024] Furthermore, the opening adjustment amount of the corresponding air volume adjustment plate is determined according to the outlet temperature of each evaporation flow path, and is implemented according to the following formula:

[0025] φ=a*(To-Tx);

[0026] Wherein, φ is the opening adjustment amount, a is the adjustment coefficient, To is the average value of the outlet temperature of each evaporation flow path, Tx is the outlet temperature of the evaporation flow path, and x is the number of the evaporation flow path.

[0027] Furthermore, the method further comprises:

[0028] detecting a condensation temperature of the condenser;

[0029] If the condensation temperature is less than or equal to the first threshold, the outlet temperature of each evaporation flow path is obtained; the opening of the corresponding air volume adjustment plate is adjusted according to the outlet temperature of each evaporation flow path, thereby adjusting the air inlet volume of each evaporation flow path;

[0030] If the condensing temperature is greater than or equal to the first threshold and less than or equal to the second threshold, the frequency of the compressor is controlled to be reduced by a preset value, and then it is determined whether the condensing temperature is less than the first threshold; if yes, the frequency of the compressor and the opening of the air volume adjustment plate corresponding to each evaporation flow path are controlled to remain unchanged; if no, the opening of the air volume adjustment plate corresponding to each evaporation flow path is controlled to be reduced to reduce the air intake of each evaporation flow path;

[0031] If the condensing temperature is greater than the second threshold, the refrigeration equipment is controlled to shut down.

[0032] Further, controlling the opening of the air volume adjustment plate corresponding to each evaporation flow path to decrease so as to reduce the air intake volume of each evaporation flow path includes:

[0033] Determining the amount of reduction in the opening of the air volume adjustment plate according to the condensing temperature;

[0034] The higher the condensation temperature is, the greater the reduction in the opening degree is.

[0035] Furthermore, the method further comprises:

[0036] Determine whether a preset condition is met; wherein the preset condition is that one of the ambient temperature, the exhaust temperature of the compressor, the exhaust pressure of the compressor, and the condensing temperature reaches a corresponding protection threshold;

[0037] If yes, the refrigeration device is controlled to enter a high temperature balance mode.

[0038] Further, controlling the refrigeration device to enter a high temperature equilibrium mode includes:

[0039] Controlling the opening of the air volume adjustment plate corresponding to each evaporation flow path to be adjusted to an initial opening;

[0040] Determining whether the condensation temperature is less than a first threshold;

[0041] If yes, the opening of the air volume adjustment plate corresponding to each evaporation flow path is controlled to increase;

[0042] If not, the opening of the air volume adjustment plate corresponding to each evaporation flow path is controlled to decrease.

[0043] The present invention also provides an evaporator air inlet volume regulating device, which is applied to a refrigeration device, wherein the refrigeration device comprises an evaporator, a condenser and a compressor, wherein the evaporator comprises a plurality of evaporation flow paths, and the device comprises:

[0044] Air volume regulating plates, the number of which is the same as the number of the evaporation flow paths, and the air volume regulating plates are arranged one by one on the air inlet side of the evaporation flow paths;

[0045] The controller is used to adjust the opening of the corresponding air volume adjustment plate according to the outlet temperature of each evaporation flow path, thereby adjusting the air inlet volume of each evaporation flow path.

[0046] Furthermore, the controller is specifically used for:

[0047] Determining the temperature range of the outlet end of the evaporation flow path;

[0048] When the outlet temperature of the evaporation flow path is within a preset range, the opening of the air volume adjustment plate is controlled to remain unchanged, thereby keeping the air volume of the evaporation flow path unchanged;

[0049] When the outlet temperature of the evaporation flow path is lower than the lower limit of the preset interval, the opening of the air volume adjustment plate corresponding to the evaporation flow path is controlled to increase, thereby increasing the air intake volume of the evaporation flow path;

[0050] When the outlet end temperature of the evaporation flow path is higher than the upper limit of the preset interval, the opening of the air volume adjustment plate corresponding to the evaporation flow path is controlled to decrease, thereby reducing the air intake volume of the evaporation flow path.

[0051] The present invention also provides a refrigeration device, comprising an evaporator, a condenser and a compressor, and also comprising the evaporator air inlet volume regulating device.

[0052] Furthermore, the refrigeration equipment is an air conditioner.

[0053] The present invention also provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the above-mentioned evaporator air inlet volume adjustment method is implemented.

[0054] The present invention also provides an electronic device, comprising:

[0055] one or more processors;

[0056] A storage device is used to store one or more programs. When the one or more programs are executed by the one or more processors, the one or more processors implement the above-mentioned evaporator air inlet volume adjustment method.

[0057] By applying the technical solution of the present invention, the outlet temperature of each evaporation flow path is obtained, so as to determine whether the outlet temperature of each evaporation flow path is balanced. If the outlet temperature of each evaporation flow path is not balanced, that is, the outlet temperature of some evaporation flow paths is higher and the outlet temperature of some evaporation flow paths is lower, then the opening of the corresponding air volume adjustment plate is adjusted according to the outlet temperature of each evaporation flow path, and then the air inlet volume of each evaporation flow path is adjusted. For the evaporation flow path with a higher outlet temperature, lowering the air inlet volume can reduce the outlet temperature. For the evaporation flow path with a lower outlet temperature, increasing the air inlet volume can increase the outlet temperature. Through the above solution, the outlet temperature of each evaporation flow path can be guaranteed to be balanced, thereby improving the refrigeration efficiency, reducing energy consumption and improving the stability of the refrigeration equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] Figure 1 is a schematic structural diagram of an evaporator according to an embodiment of the present invention;

[0059] Figure 2 is a flow chart of a method for adjusting the air inlet volume of an evaporator according to an embodiment of the present invention;

[0060] Figure 3 is a flow chart of a method for adjusting the air inlet volume of an evaporator according to another embodiment of the present invention;

[0061] Figure 4 is a flow chart of a method for adjusting the evaporator air inlet volume based on the condensing temperature according to an embodiment of the present invention;

[0062] Figure 5 is a control flow chart of a high temperature balance mode according to an embodiment of the present invention;

[0063] Figure 6 is a structural block diagram of an evaporator air inlet volume regulating device according to an embodiment of the present invention;

[0064] Figure 7 A schematic diagram of air intake volume adjustment according to an embodiment of the present invention;

[0065] Figure 8is a schematic diagram of a cross-sectional shape of an air volume adjustment plate according to an embodiment of the present invention;

[0066] Fig. 9 FIG. 4 is a schematic diagram of the hardware structure of the electronic device according to the present embodiment. DETAILED DESCRIPTION

[0067] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0068] 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.

[0069] 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.

[0070] It should be understood that, although the terms first, second, etc. may be used to describe thresholds in embodiments of the present invention, these thresholds should not be limited to these terms. These terms are only used to distinguish different thresholds. For example, without departing from the scope of embodiments of the present invention, the first threshold may also be referred to as the second threshold, and similarly, the second threshold may also be referred to as the first threshold.

[0071] As used herein, the words "if" and "if" may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)", depending on the context.

[0072] It should also be noted that the term "includes", "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, so that a commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the commodity or device including the elements.

[0073] The optional embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0074] Example 1

[0075] In refrigeration equipment, when the refrigerant flow is not accurately regulated or there is a flow restriction, some evaporation paths may not receive enough refrigerant, resulting in uneven temperatures. When the refrigerant pipeline is improperly designed or installed or leaks, it may also cause pressure loss or uneven flow when the refrigerant flows through the evaporator, resulting in uneven temperatures at the outlet of each path.

[0076] When the outlet temperatures of the evaporators are not balanced, on the one hand, the cooling effect of the refrigeration equipment will be affected, resulting in reduced cooling efficiency, and some evaporation paths may not be able to operate normally due to excessively high temperatures, resulting in energy efficiency loss. On the other hand, in order to compensate for the problem of insufficient cooling capacity caused by the uneven outlet temperatures of the paths, the air conditioning refrigeration equipment may need to increase the operating time or increase the compressor load, resulting in increased energy consumption and thus higher operating costs.

[0077] Aiming at the problem that the outlet temperatures of the evaporation flow paths of the evaporator of the refrigeration equipment in the prior art are uneven, resulting in reduced refrigeration efficiency, increased energy consumption, and poor stability, this embodiment provides an evaporator air inlet volume adjustment method, which is applied to the refrigeration equipment, wherein the refrigeration equipment includes an evaporator, a condenser, and a compressor. Figure 1 is a schematic diagram of the structure of an evaporator according to an embodiment of the present invention, as shown in Figure 1 As shown, a fan 1 is provided on the air outlet side of the evaporator, and the evaporator includes a plurality of evaporation flow paths 2. An air volume regulating plate 3 is provided on the air inlet side of each evaporation flow path in a one-to-one correspondence manner. Figure 2 FIG. 1 is a flow chart of a method for adjusting the air inlet volume of an evaporator according to an embodiment of the present invention. Figure 2 As shown, the method includes:

[0078] S101, obtaining the outlet temperature of each evaporation flow path.

[0079] In a specific implementation, a temperature sensor may be provided at the outlet end of each evaporation flow path, and the outlet temperature of each evaporation flow path may be detected by the temperature sensor.

[0080] S102, adjusting the opening of the corresponding air volume adjustment plate according to the outlet temperature of each evaporation flow path, thereby adjusting the air inlet volume of each evaporation flow path.

[0081] In a specific implementation, the opening of the air volume regulating plate is driven by the rotation of the motor, the motor is connected to the controller, and the controller is also connected to the above-mentioned temperature sensor. The opening of the corresponding air volume regulating plate is controlled according to the outlet temperature of each evaporation flow path detected by the temperature sensor.

[0082] The evaporator air inlet adjustment method of the present embodiment obtains the outlet temperature of each evaporation flow path, thereby determining whether the outlet temperature of each evaporation flow path is balanced. If the outlet temperature of each evaporation flow path is uneven, that is, the outlet temperature of some evaporation flow paths is higher and the outlet temperature of some evaporation flow paths is lower, then the opening of the corresponding air volume adjustment plate is adjusted according to the outlet temperature of each evaporation flow path, and then the air inlet of each evaporation flow path is adjusted. For the evaporation flow path with a higher outlet temperature, lowering the air inlet volume can reduce the outlet temperature. For the evaporation flow path with a lower outlet temperature, increasing the air inlet volume can increase the outlet temperature. Through the above scheme, the outlet temperature of each evaporation flow path can be guaranteed to be balanced, thereby improving the refrigeration efficiency, reducing energy consumption and improving the stability of the refrigeration equipment.

[0083] The temperature balance described above only requires that the outlet temperatures of all evaporation flow paths are within a certain range, and does not require that the outlet temperatures of all evaporation flow paths be maintained at the same temperature value. In order to achieve that the outlet temperatures of each evaporation flow path are within a certain range, the opening of the corresponding air volume adjustment plate is adjusted according to the outlet temperature of each evaporation flow path, thereby adjusting the air inlet volume of each evaporation flow path, including: determining the interval range of the outlet temperature of the evaporation flow path; if the outlet temperature of the evaporation flow path is within the preset interval, controlling the opening of the air volume adjustment plate to remain unchanged, thereby making the evaporation flow path The air intake volume remains unchanged; wherein the preset interval is determined according to the outlet temperature of each evaporation flow path; if the outlet temperature of the evaporation flow path is lower than the lower limit of the preset interval, it indicates that the heat exchange capacity of the flow path is insufficient, and the opening of the air volume adjustment plate corresponding to the evaporation flow path is controlled to increase, thereby increasing the air intake volume of the evaporation flow path and improving the heat exchange capacity; if the outlet temperature of the evaporation flow path is higher than the upper limit of the preset interval, it indicates that the heat exchange capacity of the flow path is excessive, and in order to ensure the uniformity of the air outlet temperature of the evaporator, the opening of the air volume adjustment plate corresponding to the evaporation flow path is controlled to decrease, thereby reducing the air intake volume of the evaporation flow path.

[0084] Since the outlet temperature of each evaporation flow path needs to be within a certain range, a temperature reference needs to be determined. In order to minimize the adjustment amount of each evaporation flow path, the preset interval is determined based on the outlet temperature of each evaporation flow path, including: calculating the average value of the outlet temperature of each evaporation flow path; subtracting a preset deviation value from the average value to obtain the lower limit of the preset interval; adding the preset deviation value to the average value to obtain the upper limit of the preset interval, and the preset deviation value can be 1°C.

[0085] To achieve that the outlet temperature of each evaporation flow path is within a certain range, there are two ways to achieve this. One is to lower the outlet temperature of the flow path with a higher temperature, and the other is to increase the outlet temperature of the flow path with a lower temperature. Therefore, the above method also includes: if the outlet temperature of the evaporation flow path is lower than the lower limit of the preset interval, then the opening of the air volume adjustment plates corresponding to all high-temperature flow paths is controlled to be reduced, thereby controlling the air intake volume of all high-temperature flow paths to be reduced; wherein, the high-temperature flow path is an evaporation flow path with an outlet temperature higher than the average value; if the outlet temperature of the evaporation flow path is higher than the upper limit of the preset interval, then the opening of the air volume adjustment plates corresponding to all low-temperature flow paths is controlled to be increased, thereby controlling the air intake volume of all high-temperature flow paths to be increased; wherein, the low-temperature flow path is an evaporation flow path with an outlet temperature lower than the average value.

[0086] The above scheme can only control the increase or decrease of the air intake volume, but cannot achieve precise control. If the opening of the air volume adjustment plate is not adjusted to the right position, it needs to be adjusted again. If the opening of the air volume adjustment plate is adjusted excessively, it needs to be adjusted back again, which greatly reduces the control efficiency. In order to ensure that the outlet temperature of the evaporation flow path is adjusted to the right position at one time, before adjusting the opening of the corresponding air volume adjustment plate according to the outlet temperature of each evaporation flow path, the above method also includes: determining the opening adjustment amount of the corresponding air volume adjustment plate according to the outlet temperature of the evaporation flow path.

[0087] Specifically, the opening adjustment amount of the corresponding air volume adjustment plate is determined according to the outlet temperature of the evaporation flow path, which is implemented according to the following formula: φ=a*(To-Tx); wherein φ is the opening adjustment amount, a is the adjustment coefficient, To is the average value of the outlet temperature of each evaporation flow path, Tx is the outlet temperature of the evaporation flow path, and x is the number of the evaporation flow path.

[0088] Under high temperature conditions, the compressor load is large and the heat exchange requirements for the condenser are high, which can easily cause the condensation temperature to be too high, the refrigeration efficiency to decrease or even stop working. In other words, in addition to the temperature of the evaporator, the condensation temperature also affects the operating efficiency of the refrigeration equipment. If the condensation temperature is too high, it indicates that the compressor load is high and the efficiency will decrease. Therefore, the above method also includes: detecting the condensation temperature of the condenser; if the condensation temperature is less than or equal to the first threshold, the condensation temperature can be ignored and the outlet temperature of each evaporation flow path can be directly triggered to obtain; according to the outlet temperature of each evaporation flow path, the opening of the corresponding air volume adjustment plate is adjusted, thereby adjusting the air inlet volume of each evaporation flow path. ; If the condensing temperature is greater than or equal to the first threshold value and less than or equal to the second threshold value, it indicates that the condensing temperature is high, and it is necessary to first control the frequency of the compressor to reduce the preset value, and then determine whether the condensing temperature is less than the first threshold value; if so, the compressor frequency and the opening of the air volume adjustment plate corresponding to each evaporation flow path are controlled to remain unchanged; if not, the opening of the air volume adjustment plate corresponding to each evaporation flow path is controlled to decrease, so as to reduce the air intake of each evaporation flow path and reduce the load of the refrigeration equipment; if the condensing temperature is greater than the second threshold value, it indicates that the load of the refrigeration equipment cannot be adjusted by adjusting the compressor frequency and the air intake of each evaporation flow path, and the refrigeration equipment is controlled to shut down.

[0089] The higher the condensing temperature, the higher the load of the refrigeration equipment, and the greater the load reduction range. In order to adjust the load in one go, the opening of the air volume adjustment plate corresponding to each evaporation flow path is controlled to be reduced to reduce the air intake of each evaporation flow path, including: determining the opening reduction amount of the corresponding air volume adjustment plate according to the condensing temperature; wherein, the higher the condensing temperature, the greater the opening reduction amount.

[0090] In addition, ambient temperature, compressor exhaust temperature, and exhaust pressure are important factors that affect the efficient and stable operation of air-conditioning and refrigeration equipment. Once one of the ambient temperature, compressor exhaust temperature, exhaust pressure, and condensing temperature exceeds the protection threshold, it indicates that the refrigeration equipment has entered a high-temperature operating condition and needs to enter a high-temperature balance mode to adjust the operating parameters for the high-temperature operating condition.

[0091] Therefore, the above method further includes:

[0092] Determine whether the preset conditions are met; wherein the preset conditions are that one of the ambient temperature, the exhaust temperature of the compressor, the exhaust pressure of the compressor, and the condensing temperature reaches the corresponding protection threshold; if so, control the refrigeration equipment to enter the high temperature balance mode.

[0093] Specifically, controlling the refrigeration equipment to enter the high-temperature balance mode includes: controlling the opening of the air volume adjustment plate corresponding to each evaporation flow path to be adjusted to an initial opening; judging whether the condensation temperature is less than a first threshold value; if so, controlling the opening of the air volume adjustment plate corresponding to each evaporation flow path to increase; if not, controlling the opening of the air volume adjustment plate corresponding to each evaporation flow path to decrease.

[0094] Example 2

[0095] This embodiment provides another method for adjusting the air inlet volume of an evaporator. Figure 3 FIG. 1 is a flow chart of a method for adjusting the air inlet volume of an evaporator according to another embodiment of the present invention. Figure 3 As shown, the method includes:

[0096] S31, detecting the outlet temperature Tx of each evaporation flow path in real time through a temperature sensor.

[0097] S32, calculating the average value To of the outlet temperature of each evaporation flow path.

[0098] S33, determine the temperature range of the outlet temperature Tx of each evaporation flow path. If Tx<To-n, execute step S34; if To-n≤Tx≤To+n, execute step S35; if Tx>To+n, execute step S36.

[0099] S34, controlling the opening of the air volume adjustment plate corresponding to the evaporation flow path to increase, thereby increasing the air intake volume of the evaporation flow path.

[0100] S35, controlling the opening of the air volume adjustment plate corresponding to the evaporation flow path to remain unchanged, thereby keeping the air intake volume of the evaporation flow path unchanged.

[0101] S36, controlling the opening of the air volume adjustment plate corresponding to the evaporation flow path to decrease, thereby reducing the air intake volume of the evaporation flow path.

[0102] When the refrigeration equipment is running, the temperature sensor detects the outlet temperature of each evaporation flow path in real time. When the outlet temperature of each evaporation flow path reaches the equilibrium range (such as 1°C, or other values ​​such as 0.5°C and 2°C), the opening of the air volume adjustment plate remains unchanged; when the outlet temperature difference of one or more evaporation flow paths is large, the control module adjusts the opening of the air volume adjustment plate in real time through algorithm calculation, thereby increasing the opening of the air volume adjustment plate of the flow path with lower outlet temperature to obtain a larger air volume distribution, and reducing the opening of the air volume adjustment plate in the wind zone corresponding to the flow path with higher outlet temperature to reduce the evaporation air volume. Figure 7 Schematic diagram of air volume adjustment according to an embodiment of the present invention. Figure 7As shown, the air volume regulating plate moves parallel to the windward surface of the evaporator to adjust the size of the windward area of ​​each evaporation flow path, thereby adjusting the air intake volume. For example, the air volume regulating plate 31 corresponding to the evaporation flow path 21 is adjusted to make the opening of the air volume regulating plate 31 25%, so that the air intake volume of the evaporation flow path 21 is 25% of the maximum air intake volume; the air volume regulating plate 32 corresponding to the evaporation flow path 22 is adjusted to make the opening of the air volume regulating plate 32 50%, so that the air intake volume of the evaporation flow path 22 is 50% of the maximum air intake volume; the air volume regulating plate 33 corresponding to the evaporation flow path 23 is adjusted to make the opening of the air volume regulating plate 33 50%, so that the air intake volume of the evaporation flow path 23 is 75% of the maximum air intake volume. The above openings are for illustration only. In actual application, the specific opening value needs to be determined by the temperature difference at the outlet of each evaporator flow path. The greater the temperature difference, the greater the opening of the low-temperature flow path and the smaller the opening of the high-temperature flow path. The outlet temperatures of the evaporator flow paths from top to bottom are specified as T1, T2, and T3. In the air conditioning cooling mode, the temperature Tx at the outlet of each evaporation flow path is continuously detected by a temperature sensor. In this embodiment, x takes the value of 1, 2, and 3. The outlet temperature is collected and the average temperature is calculated. First, the outlet temperature T of each evaporation flow path is collected, and the average temperature To = (T1+T2+T3) / 3 is calculated. When To-n≤Tx≤To+n, it is considered that there is no need to adjust the evaporation air volume; when Tx<To-n, it is considered that the outlet temperature of this flow path is too low, the heat exchange capacity is insufficient, and the evaporation air volume needs to be adjusted, increasing this flow path or reducing the evaporation air volume distribution of the high-temperature flow path; when Tx>To+n, it is considered that the outlet temperature of this flow path is too high, the heat exchange capacity is excessive, and it is necessary to reduce this flow path or increase the evaporation air volume distribution of the low-temperature flow path. Where n is the allowable temperature difference, preferably 1°C, which can be set according to actual needs. When Tx<To-n, you can also first increase the opening of the low-temperature flow path air volume adjustment plate to obtain a larger evaporation air volume. After 2 minutes, calculate whether To-n≤Tx≤To+n can be achieved after adjustment. If equilibrium cannot be achieved by increasing the opening of the low-temperature flow path air volume adjustment plate, reduce the opening of the high-temperature flow path air volume adjustment plate to obtain a smaller air volume until the outlet temperatures of each flow path are balanced. Similarly, when Tx>To+n, you can first reduce the opening of the high-temperature flow path air volume adjustment plate to obtain a larger evaporation air volume. After 2 minutes, calculate whether To-n≤Tx≤To+n can be achieved after adjustment. If equilibrium cannot be achieved by reducing the opening of the high-temperature flow path air volume adjustment plate, increase the opening of the low-temperature flow path air volume adjustment plate to obtain a larger air volume until the outlet temperatures of each flow path are balanced.

[0103] The opening adjustment degree of the air volume regulating plate is determined by experiments as a preset value, and can also be calculated by the following formula: φ=a*(To-Tx); wherein φ is the opening adjustment amount, a is the adjustment coefficient, To is the average value of the outlet temperature of each evaporation flow path, and Tx is the outlet temperature of the evaporation flow path.

[0104] The above control scheme can ensure that the temperature at the outlet of each evaporation flow path is balanced in the cooling mode. Under high temperature conditions, the ambient temperature is high, and the exhaust temperature and exhaust pressure of the air conditioning and refrigeration equipment compressor are large, resulting in too high condensation temperature and the refrigeration equipment cannot work. Based on the above reasons, this embodiment also provides an evaporator air inlet adjustment method based on the condensation temperature. Figure 4 FIG. 1 is a flow chart of a method for adjusting the evaporator air inlet volume based on the condensing temperature according to an embodiment of the present invention. Figure 4 As shown, the method includes:

[0105] S41, detecting the condensation temperature of the condenser.

[0106] S42, determine the temperature range of the condensation temperature. If the condensation temperature is less than 65°C, execute step S43; if 65°C≤condensation temperature≤69°C, execute step S44; if the condensation temperature is greater than 69°C, execute step S48.

[0107] S43, directly triggering to obtain the outlet temperature of each evaporation flow path; adjusting the opening of the corresponding air volume adjustment plate according to the outlet temperature of each evaporation flow path, thereby adjusting the air inlet volume of each evaporation flow path.

[0108] S44, controlling the frequency of the compressor to decrease by a preset value.

[0109] S45, determining whether the condensation temperature is less than <65°C; if yes, executing step S46; if no, executing step S47.

[0110] S46, controlling the compressor frequency and the opening of the air volume adjustment plate corresponding to each evaporation flow path to remain unchanged.

[0111] S47, controlling the opening of the air volume adjustment plate corresponding to each evaporation flow path to decrease, so as to reduce the air intake volume of each evaporation flow path, thereby reducing the load of the refrigeration equipment.

[0112] S48, controlling the refrigeration equipment to shut down.

[0113] Under high temperature conditions, the condensing temperature is detected in real time, and the condensing temperature is used as the judgment basis. When the condensing temperature is less than 65°C, the outlet temperature of each evaporation flow path is directly triggered to obtain the outlet temperature of each evaporation flow path; the opening of the corresponding air volume adjustment plate is adjusted according to the outlet temperature of each evaporation flow path, and then the air intake volume of each evaporation flow path is adjusted; when 65°C≤condensing temperature≤69°C, the compressor frequency is first increased to determine whether the condensing temperature is lower than 65°C. If the condensing temperature is still not less than 65°C after increasing the compressor frequency, the air volume adjustment device starts to work, and the evaporation air volume is reduced by reducing the opening of the evaporation side adjustment plate, thereby reducing the load of the refrigeration equipment and achieving the purpose of adjusting the condensing temperature; when the condensing temperature exceeds 69°C, the refrigeration equipment is controlled to shut down.

[0114] After increasing the compressor frequency, when 65℃≤condensing temperature≤69℃, the opening of the air volume adjustment plate is adjusted as follows: when the condensing temperature is 65℃, the opening is adjusted to 80%; when the condensing temperature is 66℃, the opening is adjusted to 60%; when the condensing temperature is 67℃, the opening is adjusted to 40%; when the condensing temperature is 68℃, the opening is adjusted to 20%.

[0115] Under high temperature conditions, this embodiment also monitors the ambient temperature, the exhaust pressure of the compressor, the exhaust temperature of the compressor, and the condensing temperature in real time. When any parameter among the ambient temperature, the exhaust temperature of the compressor, the exhaust pressure of the compressor, and the condensing temperature reaches the protection limit, the high temperature balance mode is entered. Figure 5 is a control flow chart of a high temperature equilibrium mode according to an embodiment of the present invention, such as Figure 5 As shown, the high temperature balance mode specifically includes:

[0116] S51, controlling the opening of the air volume adjustment plate corresponding to each evaporation flow path to be adjusted to an initial opening of 20%;

[0117] S52, determine whether the condensation temperature is less than 65°C; if yes, execute step S53, if not, execute step S54.

[0118] S53, controlling the opening of the air volume adjustment plate corresponding to each evaporation flow path to increase, thereby increasing the air intake volume of each evaporation flow path.

[0119] S54, controlling the opening of the air volume adjustment plate corresponding to each evaporation flow path to decrease, thereby reducing the air intake volume of each evaporation flow path.

[0120] The evaporator air inlet adjustment method of this embodiment has three functional modes. Through the three control schemes, the functions of balancing the outlet temperature of each evaporation flow path, adjusting the condensation temperature, and balancing the evaporation temperature under high temperature conditions can be achieved. By real-time monitoring the outlet temperature of each evaporation flow path, using the control algorithm to calculate the evaporation air volume distribution ratio, controlling the opening of the air volume adjustment plate corresponding to the evaporation flow path, adjusting the windward area of ​​the evaporation flow path, and achieving precise air volume distribution, the outlet temperature of each evaporation flow path is balanced, the heat exchange efficiency of the evaporator is improved, and the refrigeration efficiency is improved.

[0121] This embodiment also provides a method for adjusting the exhaust temperature and exhaust pressure of the compressor under high temperature conditions. By monitoring the ambient temperature, condensing temperature, the exhaust pressure of the compressor, and the exhaust temperature of the compressor, the air intake volume of the evaporator is adjusted, and the exhaust temperature and exhaust pressure of the compressor are assisted to reduce the condensing temperature, thereby improving the refrigeration efficiency and high-temperature operation stability of the air-conditioning system.

[0122] Example 3

[0123] This embodiment provides an evaporator air inlet volume regulating device, which is applied to a refrigeration device. The refrigeration device includes an evaporator, a condenser and a compressor. The evaporator includes a plurality of evaporation flow paths. Figure 6 : is a structural block diagram of an evaporator air inlet volume regulating device according to an embodiment of the present invention, as shown in FIG. Figure 6 As shown, the device comprises:

[0124] The number of air volume regulating plates 3 is the same as the number of evaporation flow paths, as mentioned above. Figure 1 As shown in FIG. 1 , the air volume adjustment plates 3 are arranged one by one on the air inlet side of the evaporation flow path 2 .

[0125] In specific implementation, a temperature sensor can be set at the outlet end of each evaporation flow path, and the outlet temperature of each evaporation flow path is detected by the temperature sensor. In some embodiments of the present invention, the evaporator air inlet volume adjustment device also includes: a pressure sensor for detecting the exhaust pressure of the compressor, an exhaust temperature sensor for detecting the exhaust temperature of the compressor, an ambient temperature sensor for detecting the ambient temperature, and a condensation temperature sensor for detecting the condensation temperature of the condenser.

[0126] The controller 4 is used to adjust the opening of the corresponding air volume adjustment plate according to the outlet temperature of each evaporation flow path, thereby adjusting the air inlet volume of each evaporation flow path.

[0127] In a specific implementation, the opening of the air volume regulating plate is driven by the rotation of the motor, the motor is connected to the controller, and the controller is also connected to the above-mentioned temperature sensor. The opening of the corresponding air volume regulating plate is controlled according to the outlet temperature of each evaporation flow path detected by the temperature sensor.

[0128] The evaporator air inlet regulating device of this embodiment obtains the outlet temperature of each evaporation flow path through the controller 4, so as to determine whether the outlet temperature of each evaporation flow path is balanced. If the outlet temperature of each evaporation flow path is not balanced, that is, the outlet temperature of some evaporation flow paths is higher and the outlet temperature of some evaporation flow paths is lower, then the opening of the air volume regulating plate 3 corresponding to each evaporation flow path is adjusted according to the outlet temperature of each evaporation flow path, and then the air inlet volume of each evaporation flow path is adjusted. For the evaporation flow path with a higher outlet temperature, lowering the air inlet volume can reduce the outlet temperature. For the evaporation flow path with a lower outlet temperature, increasing the air inlet volume can increase the outlet temperature. Through the above scheme, the outlet temperature of each evaporation flow path can be guaranteed to be balanced, thereby improving the refrigeration efficiency, reducing energy consumption and improving the stability of the refrigeration equipment.

[0129] The controller is specifically used to: determine the range of the outlet temperature of the evaporation flow path 2; when the outlet temperature of the evaporation flow path 2 is within a preset range, control the opening of the air volume adjustment plate 3 to remain unchanged, thereby keeping the air intake of the evaporation flow path unchanged; when the outlet temperature of the evaporation flow path 2 is lower than the lower limit of the preset range, control the opening of the air volume adjustment plate 3 corresponding to the evaporation flow path to increase, thereby increasing the air intake of the evaporation flow path; when the outlet temperature of the evaporation flow path 2 is higher than the upper limit of the preset range, control the opening of the air volume adjustment plate corresponding to the evaporation flow path to decrease, thereby reducing the air intake of the evaporation flow path.

[0130] Figure 8 FIG. 1 is a schematic diagram of the cross-sectional shape of the air volume adjustment plate according to an embodiment of the present invention. Figure 8 As shown, the air volume adjustment plate has various shapes and adopts a low wind resistance guide type to ensure the air volume adjustment effect while minimizing energy consumption.

[0131] The present embodiment proposes a device for controlling the air intake volume of an evaporator, which is composed of an air volume regulating plate, various temperature sensors, a pressure sensor and a controller. According to temperature and pressure data, the controller adjusts the opening of the air volume regulating plate corresponding to each evaporation flow path, and then adjusts the partitioned evaporation air volume corresponding to each flow path in real time; the air volume regulating plate is composed of an electronic control device and an air volume regulating plate body, wherein the air volume regulating plate body is designed with a low wind resistance guide type, which can reduce wind resistance, increase bypass air volume, and reduce system energy consumption.

[0132] Example 4

[0133] This embodiment provides a refrigeration device, including an evaporator, a condenser and a compressor, and also includes the evaporator air inlet volume adjustment device of the above embodiment, which is used to ensure that the outlet temperature of each evaporation flow path is balanced, thereby improving the refrigeration efficiency, reducing energy consumption and improving the stability of the refrigeration equipment.

[0134] In one embodiment of the present invention, the refrigeration equipment is an air conditioner.

[0135] Example 5

[0136] This embodiment provides a computer-readable storage medium having a computer program stored thereon. When the program is executed by a processor, the method for adjusting the air intake volume of the evaporator in the above embodiment is implemented.

[0137] Example 6

[0138] This embodiment provides an electronic device, including:

[0139] one or more processors;

[0140] The storage device is used to store one or more programs. When the one or more programs are executed by the one or more processors, the one or more processors implement the evaporator air inlet volume adjustment method of the above embodiment.

[0141] Fig. 9 FIG. 1 is a schematic diagram of the hardware structure of the electronic device according to this embodiment. Fig. 9 As shown, the electronic device includes:

[0142] One or more processors 910 and memory 920, Fig. 9 A processor 910 is taken as an example.

[0143] The electronic device may further include: an input device 930 and an output device 940 .

[0144] The processor 910, the memory 920, the input device 930 and the output device 940 may be connected via a bus or other means. Fig. 9 The example of connecting through bus is taken in the following.

[0145] The memory 920 is a non-volatile computer-readable storage medium that can be used to store non-volatile software programs, non-volatile computer executable programs and modules, such as program instructions / modules corresponding to the evaporator air inlet volume adjustment method in the embodiment of the present invention. The processor 910 executes various functional applications and data processing of the server by running the non-volatile software programs, instructions and modules stored in the memory 920, that is, realizing the above method embodiment.

[0146] The memory 920 may include a program storage area and a data storage area, wherein the program storage area may store an application required for operating the device and at least one function; the data storage area may store data created according to the use of the evaporator air inlet volume adjustment device, etc. In addition, the memory 920 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage devices.

[0147] The input device 930 may receive input digital or character information and generate key signal input related to user settings and function control of the electronic device. The output device 940 may include a display device such as a display screen.

[0148] The one or more modules are stored in the memory 920, and when executed by the one or more processors 910, the evaporator air inlet volume adjustment method in any of the above method embodiments is executed.

[0149] The electronic device product can execute the method provided by the embodiment of the present invention, and has the functional modules and beneficial effects corresponding to the execution method. For technical details not described in detail in this embodiment, please refer to the method provided by the embodiment of the present invention.

[0150] The electronic device of the embodiment of the present invention exists in various forms, including but not limited to:

[0151] (1) Mobile communication devices: These devices are characterized by their mobile communication functions and their main purpose is to provide voice and data communications. These terminals include: smart phones (such as iPhone), multimedia phones, functional phones, and low-end phones.

[0152] (2) Ultra-mobile personal computer devices: These devices fall into the category of personal computers, have computing and processing capabilities, and generally also have mobile Internet access features. These terminals include: PDA, MID and UMPC devices, such as iPad.

[0153] (3) Portable entertainment devices: These devices can display and play multimedia content. They include audio and video players (such as iPods), handheld game consoles, e-books, smart toys, and portable car navigation devices.

[0154] (4) Server: A device that provides computing services. The server consists of a processor, hard disk, memory, device bus, etc. The server is similar to a general computer architecture, but because it needs to provide highly reliable services, it has higher requirements in terms of processing power, stability, reliability, security, scalability, and manageability.

[0155] (5) Other electronic devices with data interaction functions, such as televisions, large-screen cars, etc.

[0156] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0157] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An evaporator air inlet volume adjustment method is applied to a refrigeration device, wherein the refrigeration device comprises an evaporator, a condenser and a compressor, wherein the evaporator comprises a plurality of evaporation flow paths, and an air volume adjustment plate is provided on the air inlet side of each evaporation flow path in a one-to-one correspondence, wherein: The method comprises: Obtaining the outlet temperature of each evaporation flow path; The opening of the corresponding air volume regulating plate is adjusted according to the outlet temperature of each evaporation flow path, thereby adjusting the air inlet volume of each evaporation flow path.

2. The method according to claim 1, characterized in that According to the outlet temperature of each evaporation flow path, the opening of the corresponding air volume adjustment plate is adjusted, thereby adjusting the air inlet volume of each evaporation flow path, including: Determining the temperature range of the outlet end of the evaporation flow path; If the outlet temperature of the evaporation flow path is within a preset range, the opening of the air volume adjustment plate is controlled to remain unchanged, thereby keeping the air volume of the evaporation flow path unchanged; wherein the preset range is determined according to the outlet temperature of each evaporation flow path; If the outlet temperature of the evaporation flow path is lower than the lower limit of the preset interval, the opening of the air volume adjustment plate corresponding to the evaporation flow path is controlled to increase, thereby increasing the air intake volume of the evaporation flow path; If the outlet temperature of the evaporation flow path is higher than the upper limit of the preset interval, the opening of the air volume adjustment plate corresponding to the evaporation flow path is controlled to decrease, thereby reducing the air intake volume of the evaporation flow path.

3. The method according to claim 2, characterized in that The preset interval is determined according to the outlet temperature of each evaporation flow path, including: Calculate the average value of the outlet temperature of each evaporation flow path; Subtract a preset deviation value from the average value to obtain a lower limit of the preset interval; The upper limit of the preset interval is obtained by adding the preset deviation value to the average value.

4. The method according to claim 3, characterized in that The method further comprises: If the outlet temperature of the evaporation flow path is lower than the lower limit of the preset interval, the opening of the air volume adjustment plates corresponding to all high-temperature flow paths is controlled to decrease, thereby controlling the air inlet volume of all high-temperature flow paths to decrease; wherein the high-temperature flow path is an evaporation flow path whose outlet temperature is higher than the average value; If the outlet temperature of the evaporation flow path is higher than the upper limit of the preset interval, the opening of the air volume adjustment plates corresponding to all low-temperature flow paths is controlled to increase, thereby controlling the air intake volume of all high-temperature flow paths to increase; wherein the low-temperature flow path is an evaporation flow path whose outlet temperature is lower than the average value.

5. The method according to claim 1, characterized in that According to the outlet temperature of each evaporation flow path, the opening of the corresponding air volume regulating plate is adjusted, including: Determining the opening adjustment amount of the corresponding air volume adjustment plate according to the outlet temperature of each evaporation flow path; The opening of the air volume adjustment plate is adjusted according to the opening adjustment amount.

6. The method according to claim 5, characterized in that The opening adjustment amount of the corresponding air volume adjustment plate is determined according to the outlet temperature of each evaporation flow path, and is implemented according to the following formula: φ=a*(To-Tx); Wherein, φ is the opening adjustment amount, a is the adjustment coefficient, To is the average value of the outlet temperature of each evaporation flow path, Tx is the outlet temperature of the evaporation flow path, and x is the number of the evaporation flow path.

7. The method according to claim 1, characterized in that The method further comprises: detecting a condensation temperature of the condenser; If the condensation temperature is less than or equal to the first threshold, the outlet temperature of each evaporation flow path is obtained; the opening of the corresponding air volume adjustment plate is adjusted according to the outlet temperature of each evaporation flow path, thereby adjusting the air inlet volume of each evaporation flow path; If the condensing temperature is greater than or equal to the first threshold and less than or equal to the second threshold, the frequency of the compressor is controlled to be reduced by a preset value, and then it is determined whether the condensing temperature is less than the first threshold; if yes, the frequency of the compressor and the opening of the air volume adjustment plate corresponding to each evaporation flow path are controlled to remain unchanged; if no, the opening of the air volume adjustment plate corresponding to each evaporation flow path is controlled to be reduced to reduce the air intake of each evaporation flow path; If the condensing temperature is greater than the second threshold, the refrigeration equipment is controlled to shut down.

8. The method according to claim 7, characterized in that Controlling the opening of the air volume adjustment plate corresponding to each evaporation flow path to decrease so as to reduce the air volume of each evaporation flow path includes: Determining the amount of reduction in the opening of the air volume adjustment plate according to the condensing temperature; The higher the condensation temperature is, the greater the reduction in the opening degree is.

9. The method according to claim 1, characterized in that: The method further comprises: Determine whether a preset condition is met; wherein the preset condition is that one of the ambient temperature, the exhaust temperature of the compressor, the exhaust pressure of the compressor, and the condensing temperature reaches a corresponding protection threshold; If yes, the refrigeration device is controlled to enter a high temperature balance mode.

10. The method according to claim 9, characterized in that Controlling the refrigeration device to enter a high temperature balance mode includes: Controlling the opening of the air volume adjustment plate corresponding to each evaporation flow path to be adjusted to an initial opening; Determining whether the condensation temperature is less than a first threshold; If yes, the opening of the air volume adjustment plate corresponding to each evaporation flow path is controlled to increase; If not, the opening of the air volume adjustment plate corresponding to each evaporation flow path is controlled to decrease.

11. An evaporator air inlet volume regulating device, applied to a refrigeration device, the refrigeration device comprising an evaporator, a condenser and a compressor, the evaporator comprising a plurality of evaporation flow paths, characterized in that: The device comprises: Air volume regulating plates, the number of which is the same as the number of the evaporation flow paths, and the air volume regulating plates are arranged one by one on the air inlet side of the evaporation flow paths; The controller is used to adjust the opening of the corresponding air volume adjustment plate according to the outlet temperature of each evaporation flow path, thereby adjusting the air inlet volume of each evaporation flow path.

12. The device according to claim 1, characterized in that The controller is specifically used for: Determining the temperature range of the outlet end of the evaporation flow path; When the outlet temperature of the evaporation flow path is within a preset range, the opening of the air volume adjustment plate is controlled to remain unchanged, thereby keeping the air volume of the evaporation flow path unchanged; When the outlet temperature of the evaporation flow path is lower than the lower limit of the preset interval, the opening of the air volume adjustment plate corresponding to the evaporation flow path is controlled to increase, thereby increasing the air intake volume of the evaporation flow path; When the outlet end temperature of the evaporation flow path is higher than the upper limit of the preset interval, the opening of the air volume adjustment plate corresponding to the evaporation flow path is controlled to decrease, thereby reducing the air intake volume of the evaporation flow path.

13. A refrigeration device, comprising an evaporator, a condenser and a compressor, characterized in that: It also includes the evaporator air inlet volume regulating device as described in claim 11 or 12.

14. The refrigeration device according to claim 13, characterized in that: The refrigeration equipment is an air conditioner.

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

16. An electronic device, characterized in that: include: one or more processors; A storage device for storing one or more programs, which, when executed by the one or more processors, enables the one or more processors to implement the method according to any one of claims 1 to 10.

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