Dehumidification system and method thereof

Abstract

The application discloses a dehumidification system and a method thereof. The system comprises a first rotary wheel and a second rotary wheel arranged in sequence on an air duct path of a fresh air duct, a first regeneration heater, the second rotary wheel and the first rotary wheel arranged in sequence on an air duct path of a regeneration air duct, and a controller. The controller is configured to control the opening degree of the first regeneration heater to be a first opening degree when the dew point value of the outlet of the fresh air duct is inconsistent with a first dew point reference value. In this way, the opening degree of the first regeneration heater is more smoothly controlled, the dew point value of the outlet of the fresh air duct is more stable and less fluctuates, and thus the fluctuation amplitude of the dew point value of the workshop is reduced.

Description

Technical Field

[0001] This application relates to the field of dehumidification technology, and in particular to a dehumidification system and method thereof. Background Technology

[0002] Battery production processes require high humidity levels in the air, typically achieved through dehumidification systems in the production workshop to ensure the dew point meets production requirements. Currently, the dew point value fluctuates significantly during dehumidification. To maintain product quality during periods of negative fluctuation, the reference dew point value is often lowered to significantly reduce its impact. However, lowering the reference dew point value leads to higher dehumidification energy consumption.

[0003] It is evident that, from an energy-saving perspective, how to reduce the fluctuation amplitude of workshop dew point value during dehumidification is an urgent problem to be solved. Summary of the Invention

[0004] This application provides a dehumidification system and method to solve the technical problem that the large fluctuation amplitude of the workshop dew point value during the dehumidification process indirectly leads to high dehumidification energy consumption.

[0005] In a first aspect, embodiments of this application provide a dehumidification system, including:

[0006] Fresh air ducts and regenerative air ducts;

[0007] The rotary dehumidification assembly includes a first rotary wheel, a second rotary wheel, and a first regeneration heater;

[0008] The first and second rotors are sequentially arranged on the air duct path of the fresh air duct. The air inlet of the fresh air duct is connected to the outside, and the air outlet of the fresh air duct is connected to the production workshop.

[0009] The first regenerative heater, the second rotor, and the first rotor are sequentially arranged on the air duct path of the regenerative air duct. The air inlet of the regenerative air duct is connected to the fresh air duct, and the air outlet of the regenerative air duct is connected to the outside.

[0010] The air inlet of the return air duct is connected to the production workshop, and the air outlet of the return air duct is connected to the fresh air duct. The connection between the return air duct and the fresh air duct is located between the first rotor and the second rotor.

[0011] The controller is used to control the opening degree of the first regenerative heater to the first opening degree when the dew point value at the air outlet of the fresh air duct is inconsistent with the first dew point reference value.

[0012] In this embodiment, during the dehumidification process, the dehumidification system can directly control the opening degree of the first regenerator heater based on the difference between the dew point value at the outlet of the fresh air duct and the first dew point reference value. This makes the opening degree control of the first regenerator heater smoother, and its opening degree is increased or decreased on the existing basis to achieve fine adjustment without drift, so as to make the dew point value at the outlet of the fresh air duct more stable and less volatile, thereby reducing the fluctuation amplitude of the workshop dew point value.

[0013] In some embodiments, the rotary dehumidification assembly further includes a first surface cooler, which is disposed on the air duct path of the fresh air duct and located between the first rotor and the second rotor.

[0014] The controller is also used to: control the opening of the first surface cooler to be fully open when the duration of the first opening degree being greater than the first opening degree threshold reaches the first duration and the dew point value of the air outlet of the fresh air duct is still greater than the first dew point reference value.

[0015] In this embodiment, if the duration for which the first opening degree is greater than the first opening degree threshold reaches a first duration, and the dew point value at the outlet of the fresh air duct is still greater than the first dew point reference value, it can be considered that the dehumidification effect achieved by the dehumidification system based on adjusting the first regenerator is not good. At this time, the opening degree of the first surface cooler can be fully opened to enhance the dehumidification effect with the assistance of the first surface cooler, so that the dew point value at the outlet of the fresh air duct can quickly reach the first dew point reference value.

[0016] In some embodiments, the rotary dehumidification assembly further includes a second regeneration heater and a return air duct. The second regeneration heater is disposed on the air duct path of the regeneration air duct and is located between the second rotary wheel and the first rotary wheel. The air inlet of the return air duct is connected to the production workshop, and the air outlet of the return air duct is connected to the fresh air duct. The connection between the return air duct and the fresh air duct is located between the first rotary wheel and the second rotary wheel.

[0017] The controller is also used to: control the opening degree of the second regenerator to the second opening degree when the dew point value at the connection between the return air duct and the fresh air duct is inconsistent with the second dew point reference value.

[0018] In this way, the dehumidification of the dehumidification system can be divided into two stages. First, the opening of the second regenerator can be controlled based on the difference between the dew point value at the connection between the return air duct and the fresh air duct and the second dew point reference value. This adds process control to the dehumidification effect of the first impeller, so that the dew point value of the air entering the second impeller can approach the second dew point reference value. This stabilizes the output of the second impeller by stabilizing the input of the second impeller, thus achieving more stable and less fluctuating control of the dew point value at the outlet of the fresh air duct.

[0019] In some embodiments, the rotary dehumidification assembly further includes a second surface cooler, which is disposed on the air duct path of the fresh air duct and located on the side of the first rotor away from the second rotor;

[0020] The controller is also used to: control the opening of the second surface cooler to be fully open when the duration of the second opening degree being greater than the second opening degree threshold reaches the second duration and the dew point value at the connection between the return air duct and the fresh air duct is still greater than the second dew point reference value.

[0021] In this embodiment, if the duration for which the second opening degree is greater than the second opening degree threshold reaches the second duration, and the dew point value at the connection between the return air duct and the fresh air duct is still greater than the second dew point reference value, it can be considered that the dehumidification effect achieved by the first rotor based on adjusting the second regenerative heater is not good. At this time, the opening degree of the second surface cooler can be fully opened to enhance the dehumidification effect of the first rotor with the assistance of the second surface cooler, so that the dew point value at the connection between the return air duct and the fresh air duct can quickly reach the second dew point reference value.

[0022] In some embodiments, the rotary dehumidification assembly further includes a regeneration exhaust fan, which is disposed on the air duct path of the regeneration air duct and located on the side of the second rotor away from the first rotor;

[0023] The controller is also configured to set the operating frequency of the regenerator exhaust fan to the rated frequency value of the regenerator exhaust fan when the duration of the second opening being greater than the second opening threshold reaches the second duration and the dew point value at the connection between the return air duct and the fresh air duct is still greater than the second dew point reference value.

[0024] In this embodiment, the dehumidification effect of the first impeller can be further enhanced by increasing the operating frequency of the regenerative exhaust fan to the rated frequency value, so that the dew point value at the connection between the return air duct and the fresh air duct can quickly reach the second dew point reference value.

[0025] In some embodiments, the rotary dehumidification assembly further includes a blower, which is disposed on the air duct path of the fresh air duct and located on the side of the second rotor away from the first rotor;

[0026] The controller is also used to adjust the operating frequency of the blower according to the air volume value of the air outlet of the fresh air duct, so that the air volume value of the air outlet of the fresh air duct is within the air volume standard range required by the production workshop.

[0027] In this embodiment, the operating frequency of the blower can be adjusted based on the air volume value so that the air volume value can meet the air supply requirements of the production workshop.

[0028] Secondly, embodiments of this application provide a dehumidification method applied to the aforementioned dehumidification system, comprising:

[0029] Obtain the dew point value of the air outlet of the fresh air duct;

[0030] When the dew point value at the outlet of the fresh air duct is inconsistent with the first dew point reference value, the first opening degree of the first regenerator is determined based on the first difference between the dew point value at the outlet of the fresh air duct and the first dew point reference value.

[0031] The opening degree of the first regenerative heater is controlled to the first opening degree.

[0032] In this embodiment, during the dehumidification process, the dehumidification system can directly control the opening degree of the first regenerator heater based on the difference between the dew point value at the outlet of the fresh air duct and the first dew point reference value. This makes the opening degree control of the first regenerator heater smoother, and its opening degree is increased or decreased on the existing basis to achieve fine adjustment without drift, so as to make the dew point value at the outlet of the fresh air duct more stable and less volatile, thereby reducing the fluctuation amplitude of the workshop dew point value.

[0033] In some embodiments, determining the first opening degree of the first regenerative heater based on a first difference between the dew point value at the outlet of the fresh air duct and a first dew point reference value includes:

[0034] The first opening adjustment value of the first regenerative heater is determined based on the first difference and the first coefficient.

[0035] The first opening degree is determined based on the first opening degree adjustment value and the current opening degree value of the first regenerative heater.

[0036] In this embodiment, a first opening adjustment value for the first regenerative heater can be calculated based on a first difference and a pre-set first coefficient. Then, the opening of the first regenerative heater can be adjusted to the first opening value. On one hand, the opening control process involves adding or subtracting from the existing parameters to achieve drift-free micro-adjustments, making the dew point value at the outlet of the fresh air duct more stable and less volatile, thereby reducing the amplitude of dew point fluctuations in the workshop. On the other hand, the accuracy of the opening adjustment can be improved by flexibly setting the first coefficient.

[0037] In some embodiments, when the dew point value at the outlet of the fresh air duct is inconsistent with a first dew point reference value, before determining the first opening degree of the first regenerator based on a first difference between the dew point value at the outlet of the fresh air duct and the first dew point reference value, the method further includes:

[0038] Obtain the average dew point of the first workshop within the first time period;

[0039] If the average dew point value of the first workshop is inconsistent with the workshop dew point reference value, the first dew point reference value shall be determined based on the third difference between the average dew point value of the first workshop and the workshop dew point reference value.

[0040] In this way, the first dew point reference value can be determined by the workshop dew point difference, and the control of the workshop dew point value can be transformed into the control of the dew point value of the fresh air duct outlet. This reduces the fluctuation of the workshop dew point value caused by the lag when directly controlling the workshop dew point value. By controlling the dew point value of the fresh air duct outlet, the purpose of controlling the workshop dew point value is indirectly achieved, making the workshop dew point value control more stable.

[0041] In some embodiments, determining the first dew point reference value based on a third difference between the first workshop dew point average value and the workshop dew point reference value includes:

[0042] The first dew point adjustment value is determined based on the third difference and the second coefficient;

[0043] Based on the first dew point adjustment value, the current first dew point reference value is updated to obtain the updated first dew point reference value.

[0044] In this way, the first dew point adjustment value can be calculated based on the third difference and the pre-set second coefficient, and then the first dew point reference value can be updated based on the first dew point adjustment value. On the one hand, the process of updating the first dew point reference value involves adding or subtracting from the existing value, making the control of the dew point value at the outlet of the fresh air duct more stable, thereby reducing the fluctuation amplitude of the workshop dew point value. On the other hand, the accuracy of the updated first dew point reference value can be improved by flexibly setting the second coefficient.

[0045] In some embodiments, when the dew point value at the outlet of the fresh air duct is inconsistent with the first dew point reference value, the first dew point reference value is determined based on a third difference between the average dew point value of the first workshop and the workshop dew point reference value, including:

[0046] If the average dew point of the first workshop is less than or equal to the workshop dew point reference value, the average dew point of the second workshop in the target sub-time period of the first time period is obtained. The target sub-time period is the earlier part of the time period in the first time period.

[0047] If the average dew point value of the second workshop is greater than the workshop dew point reference value, the first dew point reference value is determined based on the fourth and third differences between the average dew point value of the second workshop and the workshop dew point reference value.

[0048] In this embodiment, during the process of updating the first dew point reference value, in addition to considering the difference between the average dew point of the first workshop and the workshop dew point reference value over a period of time, the difference between the average dew point of the second workshop and the workshop dew point reference value in the earlier target sub-time period can also be considered, so as to control the fluctuation amplitude of the workshop dew point value during this period, achieve refined control, and further improve the control stability.

[0049] In some embodiments, the rotary dehumidification assembly of the dehumidification system further includes a first surface cooler; the method further includes:

[0050] If the duration of the first opening degree being greater than the first opening degree threshold reaches the first duration, and the dew point value of the air outlet of the fresh air duct is still greater than the first dew point reference value, the opening degree of the first surface cooler is controlled to be fully open.

[0051] In this embodiment, if the duration for which the first opening degree is greater than the first opening degree threshold reaches the first duration, and the dew point value at the outlet of the fresh air duct is still greater than the first dew point reference value, it can be considered that the dehumidification effect achieved by the second rotor based on adjusting the first regenerative heater is not good. At this time, the opening degree of the first surface cooler can be fully opened to enhance the dehumidification effect with the assistance of the first surface cooler, so that the dew point value at the outlet of the fresh air duct can quickly reach the first dew point reference value.

[0052] In some embodiments, the method further includes:

[0053] If the duration during which the first opening degree is greater than the first opening degree threshold is less than the first duration, or if the dew point value at the outlet of the fresh air duct is less than or equal to the first dew point reference value, the first temperature value of the air entering the second rotor is obtained.

[0054] The opening of the first surface cooler is adjusted based on the first temperature value so that the temperature of the air entering the second rotor reaches the first temperature reference value.

[0055] In this embodiment, when it is not necessary to assist the first regenerative heater in enhancing the dehumidification effect of the second rotor, the opening degree of the first surface cooler can be adjusted based on the first temperature value of the air entering the second rotor. While ensuring that the first temperature value meets basic requirements, power consumption can be reduced to achieve energy saving.

[0056] In some embodiments, the rotary dehumidification assembly of the dehumidification system further includes a second regeneration heater and a return air duct; and also includes:

[0057] Obtain the dew point value at the connection between the return air duct and the fresh air duct;

[0058] If the dew point value at the connection between the return air duct and the fresh air duct is inconsistent with the second dew point reference value, the second opening degree of the second regeneration heater is determined based on the second difference between the dew point value at the connection between the return air duct and the fresh air duct and the second dew point reference value.

[0059] The opening degree of the second regenerative heater is controlled to the second opening degree.

[0060] In this embodiment, the dehumidification process can be divided into two stages. First, the opening of the second regenerator is controlled based on the difference between the dew point value at the connection between the return air duct and the fresh air duct and the second dew point reference value. This increases the process control of the dehumidification effect of the first impeller, so that the dew point value of the air entering the second impeller can approach the second dew point reference value. This stabilizes the output of the second impeller by stabilizing the input of the second impeller, thereby achieving more stable and less fluctuating control of the dew point value at the outlet of the fresh air duct.

[0061] In some embodiments, determining the second opening degree of the second regenerator based on a second difference between the dew point value at the connection between the return air duct and the fresh air duct and a second dew point reference value includes:

[0062] The second opening adjustment value of the second regenerative heater is determined based on the second difference and the third coefficient.

[0063] The second opening degree is determined based on the second opening degree adjustment value and the current opening degree value of the second regeneration heater.

[0064] In this embodiment, the second opening adjustment value of the second regenerative heater can be calculated based on the second difference and a pre-set third coefficient. Then, the opening of the second regenerative heater can be adjusted to the second opening value based on this second opening adjustment value. On one hand, the opening control process involves adding or subtracting from the existing parameters to achieve drift-free fine adjustments, making the dew point value at the connection between the return air duct and the fresh air duct more stable and less volatile. On the other hand, the accuracy of the opening adjustment can be improved by flexibly setting the third coefficient.

[0065] In some embodiments, the method further includes:

[0066] If the duration of the first opening being greater than the first opening threshold reaches the first duration, and the dew point value at the outlet of the fresh air duct is still greater than the first dew point reference value, the current second dew point reference value is updated based on the preset second dew point adjustment value to obtain the updated second dew point reference value.

[0067] In this embodiment, if the duration for which the first opening degree is greater than the first opening degree threshold reaches a first duration, and the dew point value at the outlet of the fresh air duct is still greater than the first dew point reference value, it can be considered that the dehumidification effect achieved by the second impeller based on adjusting the first regenerative heater is not good. At this time, the dehumidification effect of the first impeller can be improved by adjusting the second dew point reference value, thereby reducing the dehumidification pressure of the second impeller, so that the dehumidification effect of the second impeller is better, and the dew point value at the outlet of the fresh air duct can quickly reach the first dew point reference value.

[0068] In some embodiments, the rotary dehumidification assembly of the dehumidification system further includes a second surface cooler; the method further includes:

[0069] If the duration of the second opening degree being greater than the second opening degree threshold reaches the second duration, and the dew point value at the connection between the return air duct and the fresh air duct is still greater than the second dew point reference value, the opening degree of the second surface cooler is controlled to be fully open.

[0070] In this embodiment, if the duration for which the second opening degree is greater than the second opening degree threshold reaches the second duration, and the dew point value at the connection between the return air duct and the fresh air duct is still greater than the second dew point reference value, it can be considered that the dehumidification effect achieved by the first rotor based on adjusting the second regenerative heater is not good. At this time, the opening degree of the second surface cooler can be fully opened to enhance the dehumidification effect of the first rotor with the assistance of the second surface cooler, so that the dew point value at the connection between the return air duct and the fresh air duct can quickly reach the second dew point reference value.

[0071] In some embodiments, the method further includes:

[0072] If the duration during which the second opening is greater than the second opening threshold is less than the second duration, or if the dew point value at the connection between the return air duct and the fresh air duct is less than or equal to the second dew point reference value, the second temperature value and the first dew point value of the air entering the first rotor are obtained.

[0073] Based on the second temperature value and the first dew point value, the opening of the second surface cooler is adjusted so that the temperature value of the air entering the first rotor reaches the second temperature reference value, and the dew point value of the air entering the first rotor reaches the third dew point reference value.

[0074] In this embodiment, when it is not necessary to assist the second regenerative heater in enhancing the dehumidification effect of the first rotor, the opening degree of the second surface cooler can be adjusted based on the second temperature value and the first dew point value of the air entering the first rotor. While ensuring that the first temperature value and the first dew point value meet the basic requirements, power consumption can be reduced to achieve the purpose of energy saving.

[0075] In some embodiments, the rotary dehumidification assembly of the dehumidification system further includes a regeneration exhaust fan, and the outlet of the regeneration air duct of the dehumidification system is provided with a regeneration exhaust valve; the method further includes:

[0076] If the duration of the second opening degree being greater than the second opening degree threshold reaches the second duration, and the dew point value at the connection between the return air duct and the fresh air duct is still greater than the second dew point reference value, the opening degree of the regeneration exhaust valve is controlled to be fully open, and the operating frequency of the regeneration exhaust fan is controlled to be the rated frequency value of the regeneration exhaust fan.

[0077] In this embodiment, the dehumidification effect of the first impeller can be further enhanced by increasing the operating frequency of the regenerative exhaust fan to the rated frequency value and fully opening the regenerative exhaust valve, so that the dew point value at the connection between the return air duct and the fresh air duct can quickly reach the second dew point reference value.

[0078] In some embodiments, the method further includes:

[0079] If the duration during which the second opening degree is greater than the second opening degree threshold is less than the second duration, or if the dew point value at the connection between the return air duct and the fresh air duct is less than or equal to the second dew point reference value, then obtain the third temperature value of the air discharged from the first rotor.

[0080] The operating frequency of the regenerative exhaust fan is adjusted based on the third temperature value so that the temperature of the air discharged from the first impeller reaches the third temperature reference value.

[0081] In this embodiment, when it is not necessary to assist the second regenerative heater in enhancing the dehumidification effect of the first rotor, the operating frequency of the regenerative exhaust fan can be adjusted based on the third temperature value of the air discharged from the first rotor, which can reduce power consumption and achieve energy saving.

[0082] In some embodiments, the rotary dehumidification assembly of the dehumidification system further includes a blower, and the air inlet of the fresh air duct of the dehumidification system is provided with a fresh air valve; the method further includes:

[0083] When the average dew point of the first workshop is greater than the workshop dew point reference value, the operating frequency of the blower shall be controlled to the rated frequency value of the blower.

[0084] Based on the difference between the rated frequency of the blower and the operating frequency before adjustment, adjust the opening of the fresh air valve so that the air volume at the outlet of the fresh air duct is within the air volume standard range required by the production workshop.

[0085] In this embodiment, if the average dew point of the first workshop is greater than the workshop dew point reference value, the production workshop can be considered to be relatively humid. In order to reduce the risk of product quality being affected, the operating frequency of the blower can be increased to the rated frequency value, and the number of cycles can be increased to quickly control the workshop dew point value to approach the workshop dew point reference value.

[0086] In some embodiments, the rotary dehumidification assembly of the dehumidification system further includes a blower, and the air inlet of the fresh air duct of the dehumidification system is provided with a fresh air valve; the method further includes:

[0087] Obtain the workshop pressure value of the production workshop, and the air supply volume value of the air outlet of the fresh air duct;

[0088] Adjust the opening of the fresh air valve based on the workshop pressure value to ensure that the workshop pressure value is within the pressure standard range required by the production workshop;

[0089] Adjust the operating frequency of the blower based on the air volume value to ensure that the air volume value is within the standard range required by the production workshop.

[0090] In this embodiment, the opening of the fresh air valve can be adjusted based on the workshop pressure value, and the operating frequency of the blower can be adjusted based on the air supply volume value, so that the workshop pressure value can meet the pressure requirements of the production workshop, and the air supply volume value can meet the air supply requirements of the production workshop.

[0091] Thirdly, embodiments of this application provide an electronic device, the device including: a processor and a memory storing program instructions; the processor executes the program instructions to implement the method of the second aspect.

[0092] Fourthly, embodiments of this application provide a machine-readable storage medium storing program instructions, which, when executed by a processor, implement the method of the second aspect.

[0093] Fifthly, embodiments of this application provide a computer program product in which instructions, when executed by a processor of an electronic device, cause the electronic device to perform the method of the second aspect.

[0094] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0095] The features, advantages, and technical effects of exemplary embodiments of this application will now be described with reference to the accompanying drawings.

[0096] Figure 1 This is a hardware schematic diagram of the dehumidification system provided in the embodiments of this application;

[0097] Figure 2 This is one of the flowcharts illustrating the dehumidification method provided in the embodiments of this application;

[0098] Figure 3 The second schematic diagram of the dehumidification method provided in the embodiments of this application;

[0099] Figure 4 The third schematic flowchart of the dehumidification method provided in the embodiments of this application;

[0100] Figure 5 Fourth schematic flowchart of the dehumidification method provided in the embodiments of this application;

[0101] Figure 6 Fifth schematic flowchart of the dehumidification method provided in the embodiments of this application;

[0102] Figure 7 Sixth schematic flowchart of the dehumidification method provided in the embodiments of this application;

[0103] Figure 8 The seventh schematic flowchart of the dehumidification method provided in the embodiments of this application;

[0104] Figure 9 Eighth schematic flowchart of the dehumidification method provided in the embodiments of this application;

[0105] Figure 10 Flowchart nine of the dehumidification methods provided in the embodiments of this application;

[0106] Figure 11 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application.

[0107] The accompanying drawings are not necessarily drawn to scale.

[0108] 110. Fresh air duct; 111. Fresh air valve; 120. Regenerated air duct; 121. Regenerated exhaust valve; 130. Return air duct;

[0109] 101. First rotor; 102. Second rotor; 103. First regenerative heater; 104. First surface cooler; 105. Second regenerative heater; 106. Second surface cooler; 107. Regenerative exhaust fan; 108. Blower; 109. Third surface cooler. Detailed Implementation

[0110] The embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to illustrate the principles of this application by way of example, but should not be used to limit the scope of this application, that is, this application is not limited to the described embodiments.

[0111] In the description of this application, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationships, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. "Vertical" is not vertical in the strict sense, but within the allowable tolerance range. "Parallel" is not parallel in the strict sense, but within the allowable tolerance range.

[0112] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0113] Battery production processes have high requirements for air moisture content, which is typically represented by the dew point value. The dew point is the temperature at which air reaches saturation under constant water vapor content and pressure; essentially, it's the temperature at which water vapor and water reach equilibrium. Related technologies usually employ dehumidification systems to dehumidify the production workshop, ensuring the workshop's dew point meets production requirements. Currently, during dehumidification, the workshop dew point value fluctuates significantly. To maintain product quality during negative fluctuations, the workshop dew point reference value is often lowered to significantly reduce its value compared to production requirements, thus offsetting the negative fluctuations. However, lowering the reference value leads to high dehumidification energy consumption. Therefore, if the dew point fluctuation amplitude is small, the reference value can be set close to the production requirement, avoiding the energy waste caused by setting the reference value too low. Therefore, energy saving can be achieved by reducing the fluctuation amplitude of the workshop dew point value during the dehumidification process.

[0114] In related technologies, when the workshop dew point value deviates from the reference dew point value, the dehumidification system can adjust the workshop dew point value by adjusting the opening degree of the regenerator, the opening degree of the surface cooler, and the operating frequency of the regenerator fan.

[0115] The applicant found that, compared to adjusting the opening of the surface cooler and the operating frequency of the regenerator fan, the opening adjustment range of the regenerator is larger and more adaptable to the adjustment needs in diverse scenarios. Therefore, the adjustment of the regenerator can be used as the main means to adjust the workshop dew point value.

[0116] The control logic of the regenerative heater is as follows: when the workshop dew point value deviates from the set workshop dew point reference value, the control temperature of the regenerative heater is calculated based on the magnitude of the deviation. Then, based on the magnitude of the deviation between the control temperature and the real-time temperature, the opening degree of the regenerative heater is calculated and adjusted accordingly. The applicant also found that in practical applications, in order to quickly correct deviations, the dehumidification system sets the control temperature of the regenerative heater according to the upper limit of the temperature threshold when calculating the control temperature. This manifests as the opening degree of the regenerative heater suddenly being adjusted to a large value. Although this can quickly adjust the supply air dew point value, it also causes abnormal fluctuations in the supply air dew point value, leading to larger fluctuations in the workshop dew point value, which is detrimental to energy conservation.

[0117] Based on this, embodiments of this application provide a dehumidification system and method to solve the aforementioned technical problems. The dehumidification system provided in the embodiments of this application is described below.

[0118] Please see Figure 1 , Figure 1 This is a schematic diagram of the dehumidification system provided in an embodiment of this application. The dehumidification system may include:

[0119] Fresh air duct 110 and regeneration air duct 120;

[0120] The rotary dehumidification assembly includes a first rotary wheel 101, a second rotary wheel 102, and a first regeneration heater 103;

[0121] The first rotating wheel 101 and the second rotating wheel 102 are sequentially arranged on the air duct path of the fresh air duct 110. The air inlet of the fresh air duct 110 is connected to the outside, and the air outlet of the fresh air duct 110 is connected to the production workshop.

[0122] The first regenerative heater 103, the second rotor 102 and the first rotor 101 are sequentially arranged on the air duct path of the regenerative air duct 120. The air inlet of the regenerative air duct 120 is connected to the fresh air duct 110, and the air outlet of the regenerative air duct 120 is connected to the outside.

[0123] The controller (not shown in the figure) is used to control the opening degree of the first regenerative heater 103 to the first opening degree when the dew point value at the air outlet of the fresh air duct 110 is inconsistent with the first dew point reference value.

[0124] In this embodiment, as Figure 1 As shown, the dehumidification system mainly relies on a rotary dehumidification assembly for dehumidification, which may include a first rotary wheel 101, a second rotary wheel 102, and a first regeneration heater 103.

[0125] The first impeller 101 and the second impeller 102 are sequentially arranged along the airflow path of the fresh air duct 110. The air inlet of the fresh air duct 110 is connected to the outside, and the air outlet of the fresh air duct 110 is connected to the production workshop. Outside air flows from the air inlet of the fresh air duct 110 to the first impeller 101 and the second impeller 102. After the first impeller 101 and the second impeller 102 absorb the moisture in the air, the dry air flows to the production workshop through the air outlet of the fresh air duct 110, thus achieving the purpose of dehumidification.

[0126] The first regeneration heater 103, the second impeller 102, and the first impeller 101 are sequentially arranged along the airflow path of the regeneration duct 120. The air inlet of the regeneration duct 120 is connected to the fresh air duct 110, and the air outlet of the regeneration duct 120 is connected to the outside. At this time, some air enters the regeneration duct 120 through the fresh air duct 110. In the regeneration duct 120, the first regeneration heater 103 heats the air flowing towards the second impeller 102. The hot air carries away the moisture adsorbed in the second impeller 102, thereby restoring the moisture adsorption capacity of the second impeller 102. It can be understood that the larger the opening degree of the first regeneration heater 103 and the higher the temperature, the more moisture is carried away from the second impeller 102, the stronger its moisture adsorption capacity, and the better the dehumidification effect.

[0127] The air in the regeneration duct 120 passes through the second impeller 102 and the first impeller 101 in sequence, and then flows to the outside through the air outlet of the regeneration duct 120 to realize the circulating dehumidification function of the dehumidification system.

[0128] In practical applications of the dehumidification system, the dew point value at the outlet of the fresh air duct 110 can be monitored in real time, and compared with a first dew point reference value. The first dew point reference value can be a pre-set dew point value based on the actual needs of the production workshop, or it can be determined based on the deviation between the workshop dew point value and the workshop dew point reference value, obtained through real-time monitoring of the workshop dew point value.

[0129] When the dew point value at the outlet of the fresh air duct 110 is inconsistent with the first dew point reference value, that is, when there is a deviation between the dew point value at the outlet of the fresh air duct 110 and the first dew point reference value, the first opening degree can be determined based on the first difference between the dew point value at the outlet of the fresh air duct 110 and the first dew point reference value. At this time, the controller can control the opening degree of the first regeneration heater 103 to the first opening degree.

[0130] For example, multiple tests can be conducted on the dehumidification system to establish a correspondence table between the supply air dew point difference and the opening adjustment value of the first regenerator 103. This table can include a difference 'a' corresponding to an opening adjustment value 'a', a difference 'b' corresponding to an opening adjustment value 'b', a difference 'c' corresponding to an opening adjustment value 'c', and so on. During dehumidification, the first opening adjustment value corresponding to the first difference can be matched from the correspondence table. For instance, if the first difference is difference 'b', then the first opening adjustment value is the opening adjustment value 'b'. The current opening value of the first regenerator 103 can then be adjusted to the first opening value based on this first opening adjustment value.

[0131] Furthermore, based on multiple experiments, a first coefficient can be obtained to characterize the conversion relationship between the supply air dew point difference and the opening adjustment value of the first regenerator 103. Using this first coefficient as a preset value, after calculating the first difference between the dew point value at the outlet of the fresh air duct 110 and the first dew point reference value, the first opening adjustment value can be calculated based on the first coefficient and the first difference. Then, the current opening value of the first regenerator 103 can be adjusted according to the first opening adjustment value to achieve the first opening.

[0132] For example, if the current opening value of the first regenerative heater 103 is X%, and the first opening adjustment value is △X%, then the first opening is X+△X%.

[0133] In this embodiment, during the dehumidification process, the dehumidification system can directly control the opening degree of the first regenerator 103 based on the difference between the dew point value at the outlet of the fresh air duct and the first dew point reference value. This makes the opening degree control of the first regenerator 103 smoother, and its opening degree is increased or decreased on the existing basis to achieve fine adjustment without drift, so that the dew point value at the outlet of the fresh air duct is more stable and fluctuates less, thereby reducing the fluctuation amplitude of the workshop dew point value.

[0134] In some embodiments, the rotary dehumidification assembly further includes a first surface cooler 104, which is disposed on the air duct path of the fresh air duct 110 and located between the first rotary wheel 101 and the second rotary wheel 102.

[0135] The controller is also used to: control the opening of the first surface cooler 104 to be fully open when the duration of the first opening degree being greater than the first opening degree threshold reaches the first duration and the dew point value of the air outlet of the fresh air duct is still greater than the first dew point reference value.

[0136] In this embodiment, as Figure 1 As shown, the rotary dehumidification assembly may also include a first surface cooler 104, which is disposed on the air duct path of the fresh air duct 110 and located between the first rotary wheel 101 and the second rotary wheel 102.

[0137] Understandably, the first surface cooler 104 primarily controls the temperature of the air entering the second rotor 102. The lower the temperature, the less capable the air is of holding water vapor. At this temperature, the water vapor in the air will condense into liquid water, which is more easily adsorbed by the second rotor 102, thereby improving the dehumidification effect.

[0138] If the duration of the first opening degree being greater than the first opening degree threshold reaches the first duration, and the dew point value at the outlet of the fresh air duct is still greater than the first dew point reference value, then it can be considered that the dehumidification effect achieved by the dehumidification system based on adjusting the first regenerator 103 is not good.

[0139] The first opening threshold and the first duration can be set according to actual needs. For example, the first opening threshold can be 95% to 100%, and the first duration can be 20 to 30 minutes.

[0140] Taking a first opening threshold of 95% and a first duration of 30 minutes as an example, if the dew point value at the outlet of the fresh air duct is greater than the first dew point reference value, as mentioned above, the dew point value at the outlet of the fresh air duct can be adjusted to be closer to the first dew point reference value by increasing the opening of the first regenerator 103. If the first opening of the first regenerator 103 has reached more than 95%, and after half an hour, the dew point value at the outlet of the fresh air duct is still greater than the first dew point reference value, it can be considered that the current adjustment is insufficient to make the dew point value at the outlet of the fresh air duct meet the requirements. In this case, other methods can be sought to assist in dehumidification.

[0141] At this time, the opening of the first surface cooler 104 can be controlled to be fully open, that is, to enhance the condensation function of the first surface cooler 104, so that the temperature of the air entering the second rotor 102 is reduced, and more water vapor condenses into liquid water and is absorbed by the second rotor 102, thereby increasing the dew point value of the air outlet of the fresh air duct, so as to reduce the deviation between it and the first dew point reference value.

[0142] In this way, the dehumidification effect can be enhanced by the assistance of the first surface cooler 104, so that the dew point value of the air outlet of the fresh air duct can quickly reach the first dew point reference value.

[0143] In some embodiments, the rotary dehumidification assembly further includes a second regeneration heater 105 and a return air duct 130. The second regeneration heater 105 is disposed on the air duct path of the regeneration air duct 120 and is located between the second rotary wheel 102 and the first rotary wheel 101. The air inlet of the return air duct 130 is connected to the production workshop, and the air outlet of the return air duct 130 is connected to the fresh air duct 110. The connection between the return air duct 130 and the fresh air duct 110 is located between the first rotary wheel 101 and the second rotary wheel 102.

[0144] The controller is also used to control the opening degree of the second regenerator 105 to the second opening degree when the dew point value at the connection between the return air duct 130 and the fresh air duct 110 is inconsistent with the second dew point reference value.

[0145] In this embodiment, as Figure 1 As shown, the rotary dehumidifier assembly may further include a second regeneration heater 105, which is disposed on the air duct path of the regeneration air duct 120 and located between the second rotary wheel 102 and the first rotary wheel 101. The dehumidification system may further include a return air duct 130, wherein the air inlet of the return air duct 130 is connected to the production workshop, the air outlet of the return air duct 130 is connected to the fresh air duct 110, and the connection between the return air duct 130 and the fresh air duct 110 is located between the first rotary wheel 101 and the second rotary wheel 102.

[0146] The dehumidification process can be divided into two stages, each controlled by a separate control unit. One control unit may include a second regenerative heater 105 and a first impeller 101, used to control the dew point value at the connection between the return air duct 130 and the fresh air duct 110, i.e., controlling the dew point value input to the second impeller 102. The other control unit may include a first regenerative heater 103 and a second impeller 102, used to control the dew point value at the outlet of the fresh air duct 110, i.e., controlling the dew point value output by the second impeller 102.

[0147] Understandably, the dew point value at the outlet of the fresh air duct 110 is also affected to some extent by the dew point value of the air entering the second rotor 102. That is, the dew point value at the connection between the return air duct 130 and the fresh air duct 110 can indirectly affect the dew point value at the outlet of the fresh air duct 110. The more stable the dew point value at the connection between the return air duct 130 and the fresh air duct 110, the more stable the dew point value at the outlet of the fresh air duct 110 will be.

[0148] Based on this, when the dew point value at the connection between the return air duct 130 and the fresh air duct 110 is inconsistent with the second dew point reference value, that is, when there is a deviation between the dew point value at the connection between the return air duct 130 and the fresh air duct 110 and the second dew point reference value, the second opening degree can be determined based on the second difference between the dew point value at the connection between the return air duct 130 and the fresh air duct 110 and the second dew point reference value. At this time, the opening degree of the second regeneration heater 105 can be controlled to be the second opening degree.

[0149] For example, multiple tests can be conducted on the dehumidification system to establish a correspondence table between the difference in the mixed dew point at the connection between the return air duct 130 and the fresh air duct 110 and the opening adjustment value of the second regenerator 105. This correspondence table can include values ​​such as difference d corresponding to opening adjustment value d, difference e corresponding to opening adjustment value e, and difference f corresponding to opening adjustment value f. During dehumidification, the second opening adjustment value corresponding to the second difference can be matched from the correspondence table. For example, if the second difference is difference d, then the second opening adjustment value is the opening adjustment value d. The current opening value of the second regenerator 105 can then be adjusted to the second opening value based on this second opening adjustment value.

[0150] A third coefficient can be obtained based on multiple experiments to characterize the conversion relationship between the mixing dew point difference and the opening adjustment value of the second regenerator 105. Using this third coefficient as a preset value, after calculating the second difference between the dew point value at the connection between the return air duct 130 and the fresh air duct 110 and the second dew point reference value, the second opening adjustment value can be calculated based on the third coefficient and the second difference. Then, the current opening value of the second regenerator 105 can be adjusted according to the second opening adjustment value to achieve the second opening.

[0151] For example, if the current opening value of the second regenerative heater 105 is Y%, and the second opening adjustment value is △Y%, then the second opening is Y+△Y%.

[0152] In this way, the dehumidification of the dehumidification system can be divided into two stages. First, based on the difference between the dew point value at the connection between the return air duct 130 and the fresh air duct 110 and the second dew point reference value, the opening of the second regenerator 105 can be controlled, which increases the process control of the dehumidification effect of the first impeller 101. This allows the dew point value of the air entering the second impeller 102 to approach the second dew point reference value, thereby stabilizing the output of the second impeller 102 by stabilizing the input of the second impeller 102. This achieves the goal of more stable and less fluctuating control of the dew point value at the outlet of the fresh air duct 110.

[0153] In some embodiments, the rotary dehumidification assembly further includes a second surface cooler 106, which is disposed on the air duct path of the fresh air duct 110 and located on the side of the first rotary wheel 101 away from the second rotary wheel 102.

[0154] The controller is also used to: control the opening of the second surface cooler 106 to be fully open when the second opening degree is greater than the second opening degree threshold for a second duration and the dew point value at the connection between the return air duct 130 and the fresh air duct 110 is still greater than the second dew point reference value.

[0155] In this embodiment, as Figure 1As shown, the rotary dehumidifier assembly may also include a second surface cooler 106, which is disposed on the air duct path of the fresh air duct 110 and located on the side of the first rotary wheel 101 away from the second rotary wheel 102.

[0156] Understandably, the second surface cooler 106 primarily controls the temperature and dew point of the air entering the first rotor 101. The lower the temperature, the less the air can hold water vapor. At this point, the water vapor in the air will condense into liquid water, which is more easily adsorbed by the first rotor 101, thereby improving the dehumidification effect of the first rotor 101.

[0157] If the duration of the second opening degree being greater than the second opening degree threshold reaches the second duration, and the dew point value at the connection between the return air duct 130 and the fresh air duct 110 is still greater than the second dew point reference value, then it can be considered that the dehumidification effect achieved by the first rotor 101 based on adjusting the second regenerator 105 is not good.

[0158] The second opening threshold and the second duration can both be set according to actual needs. For example, the second opening threshold can be 95% to 100%, and the second duration can be 20 to 30 minutes.

[0159] Taking a second opening threshold of 95% and a second duration of 30 minutes as an example, if the dew point value at the connection between the return air duct 130 and the fresh air duct 110 is greater than the second dew point reference value, as mentioned above, the opening of the second regenerator 105 can be increased to adjust the dew point value at the connection between the return air duct 130 and the fresh air duct 110, bringing it closer to the second dew point reference value. If the second opening of the second regenerator 105 has reached 95% or more, and after half an hour, the dew point value at the connection between the return air duct 130 and the fresh air duct 110 is still greater than the second dew point reference value, it can be considered that the current adjustment is insufficient to make the dew point value at the connection between the return air duct 130 and the fresh air duct 110 meet the requirements. In this case, other methods can be sought to assist in dehumidification.

[0160] At this time, the opening of the second surface cooler 106 can be controlled to be fully open, that is, to enhance the condensation function of the second surface cooler 106, so that the temperature of the air entering the first rotor 101 is reduced, and more water vapor condenses into liquid water and is absorbed by the first rotor 101, thereby increasing the dew point value at the connection between the return air duct 130 and the fresh air duct 110, so as to reduce the deviation between it and the second dew point reference value.

[0161] In this way, the dehumidification effect of the first rotor 101 can be enhanced by the assistance of the second surface cooler 106, so that the dew point value at the connection between the return air duct 130 and the fresh air duct 110 can quickly reach the second dew point reference value.

[0162] In some embodiments, the rotary dehumidification assembly further includes a regeneration exhaust fan 107, which is disposed on the air duct path of the regeneration air duct 120 and located on the side of the second rotary wheel 102 away from the first rotary wheel 101.

[0163] The controller is also used to: control the operating frequency of the regenerating exhaust fan 107 to the rated frequency value of the regenerating exhaust fan 107 when the duration of the second opening degree being greater than the second opening degree threshold reaches the second duration and the dew point value at the connection between the return air duct 130 and the fresh air duct 110 is still greater than the second dew point reference value.

[0164] In this embodiment, as Figure 1 As shown, the rotary dehumidification assembly may also include a regeneration exhaust fan 107, which may be located on the air duct path of the regeneration air duct 120 and on the side of the second rotary wheel 102 away from the first rotary wheel 101.

[0165] The regeneration exhaust fan 107 can be used to control the airflow blowing out of the first impeller 101. Understandably, the larger the airflow, the more moisture is carried out of the first impeller 101, the faster its moisture adsorption capacity recovers, and the stronger its moisture adsorption capacity, resulting in better dehumidification. However, since the regeneration process is close to an isenthalpic process, the larger the airflow blown out by the regeneration exhaust fan 107, the greater the heat discharged from the outlet of the regeneration duct 120. In other words, the energy consumption for exhaust is greater. Therefore, for energy-saving considerations, during the normal operation of the dehumidification system, the operating frequency of the regeneration exhaust fan 107 is controlled at the minimum operating frequency.

[0166] If the duration of the second opening degree exceeding the second opening degree threshold reaches the second duration, and the dew point value at the connection between the return air duct 130 and the fresh air duct 110 is still greater than the second dew point reference value, then the dehumidification effect achieved by the first rotor 101 based on adjusting the second regenerator 105 is considered inadequate. In this case, other methods can be sought to assist in dehumidification.

[0167] At this time, the regenerating exhaust fan 107 should first consider assisting the first impeller 101 in dehumidification. That is, the working frequency of the regenerating exhaust fan 107 can be controlled to the rated frequency value of the regenerating exhaust fan 107, and it can work at the maximum allowable frequency to increase the air volume, so as to remove more moisture from the first impeller 101, making the first impeller 101 more capable of absorbing moisture and the dehumidification effect better.

[0168] In this way, the dehumidification effect of the first impeller 101 can be further enhanced by increasing the operating frequency of the regenerating exhaust fan 107 to the rated frequency value, so that the dew point value at the connection between the return air duct 130 and the fresh air duct 110 can quickly reach the second dew point reference value.

[0169] In some embodiments, the rotary dehumidification assembly further includes a blower 108, which is disposed on the air duct path of the fresh air duct 110 and located on the side of the second rotary wheel 102 away from the first rotary wheel 101.

[0170] The controller is also used to adjust the operating frequency of the blower 108 according to the air volume value of the air outlet of the fresh air duct 110, so that the pressure value of the production workshop is within the pressure standard range required by the production workshop.

[0171] In this embodiment, as Figure 1 As shown, the rotary dehumidifier assembly may also include a blower 108, which is disposed on the air duct path of the fresh air duct 110 and located on the side of the second rotary wheel 102 away from the first rotary wheel 101.

[0172] The blower 108 is mainly used to control the air volume at the outlet of the fresh air duct 110 to meet the air supply requirements of the production workshop. If the actual air volume is less than the required air volume for the production workshop, the operating frequency of the blower 108 can be increased. If the actual air volume is greater than the required air volume, the operating frequency of the blower 108 can be decreased. The magnitude of increasing or decreasing the operating frequency can be determined based on the difference between the actual air volume and the required air volume for the production workshop.

[0173] In this embodiment, the operating frequency of the blower 108 can be adjusted based on the air volume value so that the air volume value can meet the air supply requirements of the production workshop.

[0174] This application also provides a dehumidification method, applied to the above-mentioned dehumidification system, such as... Figure 2 As shown, dehumidification methods may include:

[0175] Step 201: Obtain the dew point value of the air outlet of the fresh air duct.

[0176] In step 201, a dew point monitor can be installed at the air outlet of the fresh air duct to obtain the dew point value of the air outlet of the fresh air duct in real time.

[0177] Step 202: If the dew point value at the outlet of the fresh air duct is inconsistent with the first dew point reference value, determine the first opening degree of the first regenerator heater based on the first difference between the dew point value at the outlet of the fresh air duct and the first dew point reference value.

[0178] In step 202, when the dew point value of the air outlet of the fresh air duct is inconsistent with the first dew point reference value, that is, when there is a deviation between the dew point value of the air outlet of the fresh air duct and the first dew point reference value, the first opening degree can be determined based on the first difference between the dew point value of the air outlet of the fresh air duct and the first dew point reference value.

[0179] For example, multiple tests can be conducted on the dehumidification system to establish a correspondence table between the supply air dew point difference and the opening adjustment value of the first regenerator. This table can include values ​​such as difference 'a' corresponding to opening adjustment value 'a', difference 'b' corresponding to opening adjustment value 'b', and difference 'c' corresponding to opening adjustment value 'c'. During dehumidification, the first opening adjustment value corresponding to the first difference can be matched from the table. For instance, if the first difference is difference 'b', then the first opening adjustment value is opening adjustment value 'b'. The current opening value of the first regenerator can then be adjusted to the first opening value based on this first opening adjustment value.

[0180] Furthermore, based on multiple experiments, a first coefficient can be obtained to characterize the conversion relationship between the supply air dew point difference and the opening adjustment value of the first regenerator. Using this first coefficient as a preset value, after calculating the first difference between the dew point value at the outlet of the fresh air duct and the first dew point reference value, the first opening adjustment value can be calculated based on the first coefficient and the first difference. Then, the current opening value of the first regenerator can be adjusted according to the first opening adjustment value to achieve the first opening.

[0181] For example, if the current opening value of the first regenerative heater is X%, and the first opening adjustment value is △X%, then the first opening is X + △X%.

[0182] Step 203: Control the opening degree of the first regenerative heater to the first opening degree.

[0183] In this embodiment, during the dehumidification process, the dehumidification system can directly control the opening degree of the first regenerator heater based on the difference between the dew point value at the outlet of the fresh air duct and the first dew point reference value. This makes the opening degree control of the first regenerator heater smoother, and its opening degree is increased or decreased on the existing basis to achieve fine adjustment without drift, so as to make the dew point value at the outlet of the fresh air duct more stable and less volatile, thereby reducing the fluctuation amplitude of the workshop dew point value.

[0184] In some embodiments, such as Figure 3 As shown, determining the first opening degree of the first regenerator heater based on the first difference between the dew point value at the outlet of the fresh air duct and the first dew point reference value may include:

[0185] Step 301: Determine the first opening adjustment value of the first regenerative heater based on the first difference and the first coefficient;

[0186] Step 302: Determine the first opening degree based on the first opening degree adjustment value and the current opening degree value of the first regenerator.

[0187] In this embodiment, the first opening adjustment value of the first regenerator heater can be determined based on the first difference and the first coefficient. For example, if the first dew point reference value is B℃, the actual dew point value of the air outlet of the fresh air duct is C℃, and the first coefficient is φ1, then the first opening adjustment value can be (CB)*φ1%.

[0188] The first coefficient can be set based on empirical values, or it can be obtained through experimental testing on different dehumidification systems. No specific limitations are set here.

[0189] The first opening degree can be determined based on the first opening degree adjustment value and the current opening degree value of the first regenerative heater. For example, if the current opening degree value of the first regenerative heater is X%, then the first opening degree can be X + (CB) * φ1%.

[0190] In this embodiment, a first opening adjustment value for the first regenerative heater can be calculated based on a first difference and a pre-set first coefficient. Then, the opening of the first regenerative heater can be adjusted to the first opening value. On one hand, the opening control process involves adding or subtracting from the existing parameters to achieve drift-free micro-adjustments, making the dew point value at the outlet of the fresh air duct more stable and less volatile, thereby reducing the amplitude of dew point fluctuations in the workshop. On the other hand, the accuracy of the opening adjustment can be improved by flexibly setting the first coefficient.

[0191] In some embodiments, such as Figure 4 As shown, when the dew point value at the outlet of the fresh air duct is inconsistent with the first dew point reference value, before determining the first opening degree of the first regenerator based on the first difference between the dew point value at the outlet of the fresh air duct and the first dew point reference value, the method may further include:

[0192] Step 401: Obtain the average dew point of the first workshop in the first time period;

[0193] Step 402: If the average dew point value of the first workshop is inconsistent with the workshop dew point reference value, determine the first dew point reference value based on the third difference between the average dew point value of the first workshop and the workshop dew point reference value.

[0194] In related technologies, dehumidification control is typically based directly on the deviation between the workshop dew point value and the workshop dew point reference value. Due to the large area of ​​production workshops, the control of the workshop dew point value exhibits a strong lag. For example, if the workshop dew point reference value is set to -40℃, and the moisture production in the production workshop increases, the workshop dew point meter displays a dew point value of -39℃. At this point, the program defaults to dehumidification control not meeting the requirements. The dehumidification system then increases the opening of the first regenerator heater, causing the dew point value at the outlet of the fresh air duct to decrease, resulting in drier air being supplied to the production workshop. However, due to the large space of the production workshop, the dry air supplied to the environment in a short period does not significantly change the workshop dew point value, which becomes -39.2℃. After a period of time, the program will gradually adjust the dew point value at the outlet of the fresh air duct because the workshop dew point value is not met, allowing more dry air to be supplied to the production workshop. When the workshop dew point reaches -40°C, the program considers the control target met and begins to reduce the opening of the first regenerator. However, due to the large space in the production workshop, the drying air supplied in the previous period will continue to push the workshop dew point lower for some time. Overall, the control of the workshop dew point exhibits a strong lag, and during this lag period, the workshop dew point fluctuates in the opposite direction, causing the overall workshop dew point to oscillate.

[0195] Based on this, the applicant found that to achieve more stable control of the workshop dew point value, it is necessary to ensure the stability of the dew point value at the air outlet of the fresh air duct. Therefore, in this embodiment, the average dew point value of the first workshop within a first time period can be obtained, for example, the average dew point value of the first workshop within half an hour can be obtained, and this average dew point value of the first workshop can be compared with the workshop dew point reference value. The first dew point reference value can be dynamically adjusted based on the comparison result.

[0196] For example, if the average dew point value of the first workshop is inconsistent with the workshop dew point reference value, the first dew point reference value can be determined based on the third difference between the two values. A pre-defined correspondence table between workshop dew point differences and first dew point adjustment values ​​can be established. The first dew point adjustment value corresponding to the third difference can be matched from the table to update the current first dew point reference value, resulting in an updated first dew point reference value. Alternatively, the first dew point adjustment value can be calculated based on a pre-set second coefficient and the third difference, and then the current first dew point reference value can be updated accordingly, resulting in an updated first dew point reference value.

[0197] In this way, the first dew point reference value can be determined by the workshop dew point difference, and the control of the workshop dew point value can be transformed into the control of the dew point value of the fresh air duct outlet. This reduces the fluctuation of the workshop dew point value caused by the lag when directly controlling the workshop dew point value. By controlling the dew point value of the fresh air duct outlet, the purpose of controlling the workshop dew point value is indirectly achieved, making the workshop dew point value control more stable.

[0198] In some embodiments, such as Figure 5 As shown, the first dew point reference value is determined based on the third difference between the average dew point value of the first workshop and the workshop dew point reference value, which may include:

[0199] Step 501: Determine the first dew point adjustment value based on the third difference and the second coefficient;

[0200] Step 502: Based on the first dew point adjustment value, update the current first dew point reference value to obtain the updated first dew point reference value.

[0201] In this embodiment, the first dew point adjustment value can be determined based on the third difference and the second coefficient. For example, if the average dew point of the first workshop is C℃, the workshop dew point reference value is D℃, and the second coefficient is φ2, then the first dew point adjustment value can be (CD)*φ2℃.

[0202] The second coefficient can be set based on empirical values, or it can be determined through experimental testing on different dehumidification systems. No specific limitations are set here.

[0203] The current first dew point reference value can be updated based on the first dew point adjustment value to obtain the updated first dew point reference value. For example, if the current first dew point reference value is B℃, then the updated first dew point reference value can be B-(CD)*φ2℃.

[0204] In this way, the first dew point adjustment value can be calculated based on the third difference and the pre-set second coefficient, and then the first dew point reference value can be updated based on the first dew point adjustment value. On the one hand, the process of updating the first dew point reference value involves adding or subtracting from the existing value, making the control of the dew point value at the outlet of the fresh air duct more stable, thereby reducing the fluctuation amplitude of the workshop dew point value. On the other hand, the accuracy of the updated first dew point reference value can be improved by flexibly setting the second coefficient.

[0205] In some embodiments, such as Figure 6 As shown, when the dew point value at the air outlet of the fresh air duct is inconsistent with the first dew point reference value, the first dew point reference value is determined based on the third difference between the average dew point value of the first workshop and the workshop dew point reference value. This may include:

[0206] Step 601: If the average dew point of the first workshop is less than or equal to the workshop dew point reference value, obtain the average dew point of the second workshop in the target sub-time period of the first time period. The target sub-time period is the earlier part of the time period in the first time period.

[0207] Step 602: If the average dew point value of the second workshop is greater than the workshop dew point reference value, determine the first dew point reference value based on the fourth difference and the third difference between the average dew point value of the second workshop and the workshop dew point reference value.

[0208] In this embodiment, if the average dew point of the first workshop is less than or equal to the workshop dew point reference value, it can be considered that the workshop dew point value can meet the production requirements after the adjustment over the first time period. At this point, it is still necessary to further determine whether the upper limit of the workshop dew point value fluctuation will affect the product quality of the production workshop.

[0209] It can obtain the average dew point of the second workshop in the target sub-time period within the first time period, where the target sub-time period is the earlier part of the first time period. For example, it can obtain the average dew point of the second workshop in the first 15 minutes.

[0210] Compare the average dew point of the second workshop with the workshop dew point reference value. If the average dew point of the second workshop is greater than the workshop dew point reference value, the first dew point reference value needs to be further adjusted.

[0211] The first dew point reference value can be determined based on the fourth and third differences between the average dew point value of the second workshop and the workshop dew point reference value.

[0212] For example, if the current first dew point reference value is B℃, the average dew point value of the first workshop is C℃, the average dew point value of the second workshop is G℃, the workshop dew point reference value is D℃, the second coefficient is φ2, and the fourth coefficient is φ4, then the first dew point adjustment value can be (CD)*φ2+(GD)*φ4℃, and the updated first dew point reference value can be B-[(CD)*φ2+(GD)*φ4]℃.

[0213] In this embodiment, during the process of updating the first dew point reference value, in addition to considering the difference between the average dew point of the first workshop and the workshop dew point reference value over a period of time, the difference between the average dew point of the second workshop and the workshop dew point reference value in the earlier target sub-time period can also be considered, so as to control the fluctuation amplitude of the workshop dew point value during this period, achieve refined control, and further improve the control stability.

[0214] In some embodiments, the rotary dehumidification assembly of the dehumidification system further includes a first surface cooler; the method may also include:

[0215] If the duration of the first opening degree being greater than the first opening degree threshold reaches the first duration, and the dew point value of the air outlet of the fresh air duct is still greater than the first dew point reference value, the opening degree of the first surface cooler is controlled to be fully open.

[0216] In this embodiment, if the duration for which the first opening degree exceeds the first opening degree threshold reaches a first duration, and the dew point value at the outlet of the fresh air duct is still greater than the first dew point reference value, it can be considered that the dehumidification effect achieved by the second rotor based on adjusting the first regenerative heater is inadequate. As mentioned above, at this time, the opening degree of the first surface cooler can be fully opened to enhance the condensation function of the first surface cooler, thereby reducing the temperature of the air entering the second rotor, causing more water vapor to condense into liquid water and be adsorbed by the second rotor, thus increasing the dew point value at the outlet of the fresh air duct to reduce the deviation between it and the first dew point reference value.

[0217] In this way, the dehumidification effect can be enhanced by the assistance of the first surface cooler, so that the dew point value at the air outlet of the fresh air duct can quickly reach the first dew point reference value.

[0218] In some embodiments, the method may further include:

[0219] If the duration during which the first opening degree is greater than the first opening degree threshold is less than the first duration, or if the dew point value at the outlet of the fresh air duct is less than or equal to the first dew point reference value, the first temperature value of the air entering the second rotor is obtained.

[0220] The opening of the first surface cooler is adjusted based on the first temperature value so that the temperature of the air entering the second rotor reaches the first temperature reference value.

[0221] In this embodiment, if the duration for which the first opening degree is greater than the first opening degree threshold is less than the first duration, or if the dew point value at the outlet of the fresh air duct is less than or equal to the first dew point reference value, then the dehumidification effect of the second rotor is considered to be temporarily fine, and no other components are needed to assist in dehumidification.

[0222] At this point, for energy-saving considerations, the first temperature value of the air entering the second rotor can be obtained, and the opening of the first surface cooler can be adjusted based on the first temperature value.

[0223] Understandably, in order for the dehumidification system to operate normally, the temperature of the air entering the second rotor is usually limited, with a preset first temperature reference value.

[0224] If there is a deviation between the first temperature value and the first temperature reference value, the opening of the first surface cooler can be adjusted to correct the deviation.

[0225] For example, if the first temperature value is greater than the first temperature reference value, the opening degree of the first surface cooler can be increased. If the first temperature value is less than the first temperature reference value, the opening degree of the first surface cooler can be decreased. The specific opening degree adjustment value can be determined based on the difference between the first temperature value and the first temperature reference value.

[0226] In this way, without needing to assist the first regenerative heater in enhancing the dehumidification effect of the second rotor, the opening of the first surface cooler can be adjusted based on the first temperature value of the air entering the second rotor. While ensuring that the first temperature value meets basic requirements, power consumption can be reduced, thus achieving energy saving.

[0227] In some embodiments, such as Figure 7 As shown, the rotary dehumidification assembly of the dehumidification system also includes a second regeneration heater; the method may further include:

[0228] Step 701: Obtain the dew point value at the connection between the return air duct and the fresh air duct;

[0229] Step 702: If the dew point value at the connection between the return air duct and the fresh air duct is inconsistent with the second dew point reference value, determine the second opening degree of the second regeneration heater based on the second difference between the dew point value at the connection between the return air duct and the fresh air duct and the second dew point reference value.

[0230] Step 703: Control the opening degree of the second regeneration heater to the second opening degree.

[0231] In this embodiment, the dehumidification process can be divided into two stages, each controlled by a separate control unit. One control unit may include a second regenerative heater and a first impeller, used to control the dew point value at the connection between the return air duct and the fresh air duct, i.e., controlling the dew point value input to the second impeller. The other control unit may include a first regenerative heater and a second impeller, used to control the dew point value at the outlet of the fresh air duct, i.e., controlling the dew point value output by the second impeller.

[0232] It is understandable that the dew point value at the outlet of the fresh air duct will be affected to some extent by the dew point value of the air entering the second rotor. That is, the dew point value at the connection between the return air duct and the fresh air duct can indirectly affect the dew point value at the outlet of the fresh air duct. The more stable the dew point value at the connection between the return air duct and the fresh air duct, the more stable the dew point value at the outlet of the fresh air duct will be.

[0233] Based on this, when the dew point value at the connection between the return air duct and the fresh air duct is inconsistent with the second dew point reference value, that is, when there is a deviation between the dew point value at the connection between the return air duct and the fresh air duct and the second dew point reference value, the second opening degree can be determined based on the second difference between the dew point value at the connection between the return air duct and the fresh air duct and the second dew point reference value. At this time, the opening degree of the second regeneration heater can be controlled to be the second opening degree.

[0234] For example, multiple tests can be conducted on the dehumidification system to establish a correspondence table between the difference in the mixed dew point at the connection between the return air duct and the fresh air duct and the opening adjustment value of the second regenerator. This table can include a difference d corresponding to an opening adjustment value d, a difference e corresponding to an opening adjustment value e, a difference f corresponding to an opening adjustment value f, and so on. During dehumidification, the second opening adjustment value corresponding to the second difference can be matched from the correspondence table. For example, if the second difference is difference d, then the second opening adjustment value is the opening adjustment value d. The current opening value of the second regenerator 105 can then be adjusted to the second opening value based on this second opening adjustment value.

[0235] Furthermore, based on multiple experiments, a third coefficient can be obtained to characterize the conversion relationship between the mixing dew point difference and the opening adjustment value of the second regenerator. Using this third coefficient as a preset value, after calculating the second difference between the dew point value at the connection between the return air duct and the fresh air duct and the second dew point reference value, the second opening adjustment value is calculated. Then, the current opening value of the second regenerator is adjusted according to the second opening adjustment value to achieve the second opening.

[0236] For example, if the current opening value of the second regenerative heater is Y%, and the second opening adjustment value is △Y%, then the second opening is Y+△Y%.

[0237] In this embodiment, the dehumidification process can be divided into two stages. First, the opening of the second regenerator is controlled based on the difference between the dew point value at the connection between the return air duct and the fresh air duct and the second dew point reference value. This increases the process control of the dehumidification effect of the first impeller, so that the dew point value of the air entering the second impeller can approach the second dew point reference value. This stabilizes the output of the second impeller by stabilizing the input of the second impeller, thereby achieving more stable and less fluctuating control of the dew point value at the outlet of the fresh air duct.

[0238] In some embodiments, such as Figure 8 As shown, determining the second opening degree of the second regenerator based on the second difference between the dew point value at the connection between the return air duct and the fresh air duct and the second dew point reference value may include:

[0239] Step 801: Determine the second opening adjustment value of the second regeneration heater based on the second difference and the third coefficient;

[0240] Step 802: Determine the second opening degree based on the second opening degree adjustment value and the current opening degree value of the second regeneration heater.

[0241] In this embodiment, the second opening adjustment value of the second regenerator can be determined based on the second difference and the third coefficient. For example, if the second dew point reference value is E℃, the actual dew point value at the connection between the return air duct and the fresh air duct is F℃, and the third coefficient is φ3, then the second opening adjustment value can be (FE)*φ3%.

[0242] The third coefficient can be set based on empirical values, or it can be determined through experimental testing on different dehumidification systems. No specific limitations are set here.

[0243] The second opening degree can be determined based on the second opening degree adjustment value and the current opening degree value of the second regenerator. For example, if the current opening degree value of the second regenerator is Y%, then the second opening degree can be Y+(FE)*φ3%.

[0244] In this embodiment, the second opening adjustment value of the second regenerative heater can be calculated based on the second difference and a pre-set third coefficient. Then, the opening of the second regenerative heater can be adjusted to the second opening value based on this second opening adjustment value. On one hand, the opening control process involves adding or subtracting from the existing parameters to achieve drift-free fine adjustments, making the dew point value at the connection between the return air duct and the fresh air duct more stable and less volatile. On the other hand, the accuracy of the opening adjustment can be improved by flexibly setting the third coefficient.

[0245] In some embodiments, the method may further include:

[0246] If the duration of the first opening being greater than the first opening threshold reaches the first duration, and the dew point value at the outlet of the fresh air duct is still greater than the first dew point reference value, the current second dew point reference value is updated based on the preset second dew point adjustment value to obtain the updated second dew point reference value.

[0247] In this embodiment, as mentioned above, the dew point value at the connection between the return air duct and the fresh air duct can indirectly affect the dew point value at the outlet of the fresh air duct. The lower the dew point value at the connection between the return air duct and the fresh air duct, the lower the dew point value at the outlet of the corresponding fresh air duct will be, assuming the dehumidification effect of the second impeller remains unchanged.

[0248] Based on this, if the duration of the first opening degree being greater than the first opening degree threshold reaches the first duration, and the dew point value of the air outlet of the fresh air duct is still greater than the first dew point reference value, it can be considered that the dehumidification effect achieved by the second rotor based on adjusting the first regenerator is not good.

[0249] The first opening threshold and the first duration can be set according to actual needs. For example, the first opening threshold can be 95% to 100%, and the first duration can be 20 to 30 minutes.

[0250] Taking a first opening threshold of 95% and a first duration of 30 minutes as an example, if the dew point value at the outlet of the fresh air duct is greater than the first dew point reference value, the dew point value at the outlet of the fresh air duct can be adjusted to be closer to the first dew point reference value by increasing the opening of the first regenerator. If the first opening of the first regenerator has reached more than 95%, and after half an hour, the dew point value at the outlet of the fresh air duct is still greater than the first dew point reference value, it can be considered that the current adjustment is insufficient to make the dew point value at the outlet of the fresh air duct meet the requirements. In this case, other methods can be sought to assist in dehumidification.

[0251] At this point, assistance can be sought from the first dew point wheel. For example, the current second dew point reference value can be updated based on a preset second dew point adjustment value to obtain an updated second dew point reference value. The preset second dew point adjustment value can be set according to actual needs and is not specifically limited here.

[0252] For example, the preset second dew point adjustment value can be 5℃. That is, if the first opening degree of the first regenerator has reached more than 95%, and after half an hour, the dew point value at the outlet of the fresh air duct is still greater than the first dew point reference value, the second dew point reference value can be reduced by 5℃.

[0253] In this embodiment, if the duration for which the first opening degree is greater than the first opening degree threshold reaches a first duration, and the dew point value at the outlet of the fresh air duct is still greater than the first dew point reference value, it can be considered that the dehumidification effect achieved by the second impeller based on adjusting the first regenerative heater is not good. At this time, the dehumidification effect of the first impeller can be improved by adjusting the second dew point reference value, thereby reducing the dehumidification pressure of the second impeller, so that the dehumidification effect of the second impeller is better, and the dew point value at the outlet of the fresh air duct can quickly reach the first dew point reference value.

[0254] In some embodiments, the rotary dehumidification assembly of the dehumidification system further includes a second surface cooler; the method may also include:

[0255] If the duration of the second opening degree being greater than the second opening degree threshold reaches the second duration, and the dew point value at the connection between the return air duct and the fresh air duct is still greater than the second dew point reference value, the opening degree of the second surface cooler is controlled to be fully open.

[0256] In this embodiment, if the duration for which the second opening degree exceeds the second opening degree threshold reaches a second duration, and the dew point value at the connection between the return air duct and the fresh air duct is still greater than the second dew point reference value, it can be considered that the dehumidification effect achieved by the first rotor based on adjusting the second regenerative heater is inadequate. As mentioned above, at this time, the opening degree of the second surface cooler can be fully opened to enhance the condensation function of the second surface cooler, thereby reducing the temperature of the air entering the first rotor, causing more water vapor to condense into liquid water and be adsorbed by the first rotor, thus increasing the dew point value at the connection between the return air duct and the fresh air duct, thereby reducing the deviation between it and the second dew point reference value.

[0257] In this way, the dehumidification effect of the first rotor can be enhanced by the assistance of the second surface cooler, so that the dew point value at the connection between the return air duct and the fresh air duct can quickly reach the second dew point reference value.

[0258] In some embodiments, the method may further include:

[0259] If the duration during which the second opening is greater than the second opening threshold is less than the second duration, or if the dew point value at the connection between the return air duct and the fresh air duct is less than or equal to the second dew point reference value, the second temperature value and the first dew point value of the air entering the first rotor are obtained.

[0260] Based on the second temperature value and the first dew point value, the opening of the second surface cooler is adjusted so that the temperature value of the air entering the first rotor reaches the second temperature reference value, and the dew point value of the air entering the first rotor reaches the third dew point reference value.

[0261] In this embodiment, if the duration during which the second opening degree is greater than the second opening degree threshold is less than the second duration, or if the dew point value at the connection between the return air duct and the fresh air duct is less than or equal to the second dew point reference value, then the dehumidification effect of the first rotor is considered to be temporarily fine, and no other components are needed to assist in dehumidification.

[0262] At this point, for energy-saving considerations, the second temperature value of the air entering the first rotor can be obtained, and the opening of the second surface cooler can be adjusted based on the second temperature value.

[0263] Understandably, in order for the dehumidification system to operate normally, the temperature of the air entering the first rotor is usually limited, and a second temperature reference value is preset.

[0264] If there is a deviation between the second temperature value and the second temperature reference value, the opening of the second surface cooler can be adjusted to correct the deviation.

[0265] For example, if the second temperature value is greater than the second temperature reference value, the opening degree of the second surface cooler can be increased. If the second temperature value is less than the second temperature reference value, the opening degree of the second surface cooler can be decreased. The specific opening degree adjustment value can be determined based on the difference between the second temperature value and the second temperature reference value.

[0266] Additionally, the dew point value of the wind entering the first rotor can be limited, and a third dew point reference value can be preset.

[0267] If there is a deviation between the first dew point value and the third dew point reference value, the opening of the second surface cooler can be adjusted to correct the deviation.

[0268] For example, if the first dew point value is greater than the third dew point reference value, the opening degree of the second surface cooler can be increased. If the first dew point value is less than the third dew point reference value, the opening degree of the second surface cooler can be decreased. The specific opening degree adjustment value can be determined based on the difference between the first dew point value and the third dew point reference value.

[0269] In this way, without needing to assist the second regenerative heater in enhancing the dehumidification effect of the first rotor, the opening of the second surface cooler can be adjusted based on the second temperature value and the first dew point value of the air entering the first rotor. While ensuring that the first temperature value and the first dew point value meet basic requirements, power consumption can be reduced, thus achieving energy saving.

[0270] In some embodiments, the rotary dehumidification assembly of the dehumidification system further includes a regeneration exhaust fan, and the outlet of the regeneration air duct of the dehumidification system is provided with a regeneration exhaust valve; the method may further include:

[0271] If the duration of the second opening degree being greater than the second opening degree threshold reaches the second duration, and the dew point value at the connection between the return air duct and the fresh air duct is still greater than the second dew point reference value, the opening degree of the regeneration exhaust valve is controlled to be fully open, and the operating frequency of the regeneration exhaust fan is controlled to be the rated frequency value of the regeneration exhaust fan.

[0272] In this embodiment, if the duration for which the second opening degree is greater than the second opening degree threshold reaches the second duration, and the dew point value at the connection between the return air duct and the fresh air duct is still greater than the second dew point reference value, it can be considered that the dehumidification effect achieved by the first rotor based on adjusting the second regenerative heater is not good.

[0273] As mentioned above, the opening of the regeneration exhaust valve can be controlled to be fully open, and the operating frequency of the regeneration exhaust fan can be controlled to the rated frequency value of the regeneration exhaust fan. This increases the exhaust air volume of the regeneration air duct, thereby removing more moisture from the first impeller, making the first impeller more capable of adsorbing moisture and achieving a better dehumidification effect.

[0274] In this way, the dehumidification effect of the first impeller can be further enhanced by increasing the operating frequency of the regenerative exhaust fan to the rated frequency value and simultaneously controlling the opening of the regenerative exhaust valve to be fully open, so as to quickly reach the second dew point reference value at the connection between the return air duct and the fresh air duct.

[0275] In some embodiments, the method may further include:

[0276] If the duration during which the second opening degree is greater than the second opening degree threshold is less than the second duration, or if the dew point value at the connection between the return air duct and the fresh air duct is less than or equal to the second dew point reference value, then obtain the third temperature value of the air discharged from the first rotor.

[0277] The operating frequency of the regenerative exhaust fan is adjusted based on the third temperature value so that the temperature of the air discharged from the first impeller reaches the third temperature reference value.

[0278] In this embodiment, if the duration during which the second opening degree is greater than the second opening degree threshold is less than the second duration, or if the dew point value at the connection between the return air duct and the fresh air duct is less than or equal to the second dew point reference value, then the dehumidification effect of the first rotor is considered to be temporarily fine, and no other components are needed to assist in dehumidification.

[0279] At this point, for energy-saving considerations, the third temperature value of the air discharged from the first rotor can be obtained, and the operating frequency of the regeneration exhaust fan can be adjusted based on the third temperature value.

[0280] Understandably, in order for the dehumidification system to operate normally, the temperature of the air discharged from the first rotor is usually limited, and a third temperature reference value is preset.

[0281] If there is a deviation between the third temperature value and the third temperature reference value, the operating frequency of the regeneration exhaust fan can be adjusted to correct the deviation.

[0282] For example, if the third temperature value is greater than the third temperature reference value, the operating frequency of the regenerative exhaust fan can be reduced. If the third temperature value is less than the third temperature reference value, the operating frequency of the regenerative exhaust fan can be increased. The specific operating frequency adjustment value can be determined based on the difference between the third temperature value and the third temperature reference value.

[0283] In this way, without needing to assist the second regenerative heater in enhancing the dehumidification effect of the first rotor, the operating frequency of the regenerative exhaust fan can be adjusted based on the third temperature value of the air discharged from the first rotor, which can reduce power consumption and achieve energy saving.

[0284] In some embodiments, such as Figure 9 As shown, the rotary dehumidification component of the dehumidification system also includes a blower, and a fresh air valve is installed at the air inlet of the fresh air duct of the dehumidification system; the method may also include:

[0285] Step 901: If the average dew point of the first workshop is greater than the workshop dew point reference value, control the operating frequency of the blower to the rated frequency value of the blower.

[0286] Step 902: Based on the difference between the rated frequency value of the blower and the operating frequency value before adjustment, adjust the opening of the fresh air valve so that the air volume value of the fresh air duct outlet is within the air volume standard range required by the production workshop.

[0287] In this embodiment, if the average dew point of the first workshop is greater than the workshop dew point reference value, it can be considered that the production workshop environment is humid, and the quality of the produced products is easily affected by the humid environment. At this time, the operating frequency of the blower can be increased to the rated frequency value to increase the number of cycles and deliver more dry air to the production workshop in the same amount of time, thereby improving the control efficiency of the workshop dew point value.

[0288] Changes in the operating frequency of the blower can affect the pressure in the production workshop. In order to maintain the pressure in the production workshop within the standard range, the opening of the fresh air valve can be dynamically reduced based on the difference between the rated frequency of the blower and the operating frequency before adjustment, so that the overall air volume in the production workshop does not change significantly.

[0289] In this embodiment, if the average dew point of the first workshop is greater than the workshop dew point reference value, the production workshop can be considered to be relatively humid. In order to reduce the risk of product quality being affected, the operating frequency of the blower can be increased to the rated frequency value, and the number of cycles can be increased to quickly control the workshop dew point value to approach the workshop dew point reference value.

[0290] In some embodiments, such as Figure 10 As shown, the rotary dehumidification component of the dehumidification system also includes a blower, and a fresh air valve is installed at the air inlet of the fresh air duct of the dehumidification system; the method may also include:

[0291] Step 1001: Obtain the workshop pressure value of the production workshop and the air supply volume value of the air outlet of the fresh air duct.

[0292] Step 1002: Adjust the opening of the fresh air valve based on the workshop pressure value so that the workshop pressure value is within the pressure standard range required by the production workshop;

[0293] Step 1003: Adjust the operating frequency of the blower based on the air volume value so that the air volume value is within the air volume standard range required by the production workshop.

[0294] In this embodiment, the workshop pressure value can be obtained in real time, and the opening of the fresh air valve can be adjusted based on the workshop pressure value so that the workshop pressure value is within the pressure standard range required by the production workshop.

[0295] It is understandable that changes in the opening of the fresh air valve will affect the fresh air volume in the fresh air duct, which in turn will affect the air supply volume at the outlet of the fresh air duct.

[0296] Based on this, the air volume value of the air outlet of the fresh air duct can be obtained in real time, and the working frequency of the blower can be adjusted based on the air volume value so that the air volume value is within the air volume standard range required by the production workshop.

[0297] In this embodiment, the opening of the fresh air valve can be adjusted based on the workshop pressure value, and the operating frequency of the blower can be adjusted based on the air supply volume value, so that the workshop pressure value can meet the pressure requirements of the production workshop, and the air supply volume value can meet the air supply requirements of the production workshop.

[0298] Figure 11 A schematic diagram of the hardware structure of the electronic device provided in an embodiment of this application is shown.

[0299] Electronic device 1100 may include processor 1101 and memory 1102 storing programs or instructions. When processor 1101 executes the program, it implements the steps in any of the above method embodiments.

[0300] For example, the program can be divided into one or more modules / units, one or more of which are stored in memory 1102 and executed by processor 1101 to complete this application. The one or more modules / units can be a series of program instruction segments capable of performing a specific function, which describe the execution process of the program in the device.

[0301] Specifically, the processor 1101 may include a central processing unit (CPU), an application-specific integrated circuit (ASIC), or one or more integrated circuits that can be configured to implement the embodiments of this application.

[0302] Memory 1102 may include mass storage for data or instructions. For example, and not limitingly, memory 1102 may include a hard disk drive (HDD), floppy disk drive, flash memory, optical disk, magneto-optical disk, magnetic tape, or Universal Serial Bus (USB) drive, or a combination of two or more of these. Where appropriate, memory 1102 may include removable or non-removable (or fixed) media. Where appropriate, memory 1102 may be internal or external to the integrated gateway disaster recovery device. In a particular embodiment, memory 1102 is non-volatile solid-state memory.

[0303] Memory may include read-only memory (ROM), random access memory (RAM), disk storage media devices, optical storage media devices, flash memory devices, and electrical, optical, or other physical / tangible memory storage devices. Therefore, typically, memory includes one or more tangible (non-transitory) readable storage media (e.g., memory devices) encoded with software including computer-executable instructions, and when the software is executed (e.g., by one or more processors), it is operable to perform the operations described with reference to the methods according to one aspect of this disclosure.

[0304] The processor 1101 implements any of the methods described above by reading and executing programs or instructions stored in the memory 1102.

[0305] In one example, the electronic device may also include a communication interface 1103 and a bus 1104. The processor 1101, memory 1102, and communication interface 1103 are connected via the bus 1104 and communicate with each other.

[0306] The communication interface 1103 is mainly used to realize communication between various modules, devices, units and / or equipment in the embodiments of this application.

[0307] Bus 1104 includes hardware, software, or both, that couples components of an online data traffic metering device together. For example, and not limitingly, the bus may include an Accelerated Graphics Port (AGP) or other graphics bus, an Enhanced Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), HyperTransport (HT) interconnect, an Industry Standard Architecture (ISA) bus, an Infinite Bandwidth Interconnect, a Low Pin Count (LPC) bus, a memory bus, a Microchannel Architecture (MCA) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a Video Electronics Standards Association Local (VLB) bus, or other suitable buses, or combinations of two or more of these. Where appropriate, bus 1104 may include one or more buses. Although specific buses are described and illustrated in embodiments of this application, any suitable bus or interconnect is contemplated herein.

[0308] Furthermore, in conjunction with the methods in the above embodiments, this application embodiment can provide a machine-readable storage medium for implementation. This machine-readable storage medium stores a program or instructions; when executed by a processor, the program or instructions implement any of the methods in the above embodiments. This machine-readable storage medium can be read by a machine such as a computer.

[0309] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above method embodiments and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0310] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0311] This application provides a computer program product stored in a machine-readable storage medium. The program product is executed by at least one processor to implement the various processes of the above method embodiments and achieve the same technical effects. To avoid repetition, it will not be described again here.

[0312] It should be clarified that this application is not limited to the specific configurations and processes described above and shown in the figures. For the sake of brevity, detailed descriptions of known methods are omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of this application is not limited to the specific steps described and shown. Those skilled in the art can make various changes, modifications, and additions, or change the order of steps, after understanding the spirit of this application.

[0313] The functional modules shown in the above-described block diagram can be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, they can be, for example, electronic circuits, application-specific integrated circuits (ASICs), appropriate firmware, plug-ins, function cards, etc. When implemented in software, the elements of this application are programs or code segments used to perform the required tasks. Programs or code segments can be stored on a machine-readable medium or transmitted over a transmission medium or communication link via data signals carried on a carrier wave. "Machine-readable medium" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, radio frequency (RF) links, etc. Code segments can be downloaded via computer grids such as the Internet, intranets, etc.

[0314] It should also be noted that the exemplary embodiments mentioned in this application describe methods or systems based on a series of steps or apparatus. However, this application is not limited to the order of the above steps; that is, the steps can be performed in the order mentioned in the embodiments, or in a different order, or several steps can be performed simultaneously.

[0315] The aspects of this disclosure have been described above with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and program products according to embodiments of this disclosure. It should be understood that each block in the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by a computer program or instructions. These programs or instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing apparatus to produce a machine such that these instructions, executable via the processor of the computer or other programmable data processing apparatus, enable the implementation of the functions / actions specified in one or more blocks of the flowchart illustrations and / or block diagrams. Such a processor can be, but is not limited to, a general-purpose processor, a special-purpose processor, a special application processor, or a field-programmable logic circuit. It is also understood that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can also be implemented by special-purpose hardware performing the specified functions or actions, or can be implemented by a combination of special-purpose hardware and computer instructions.

[0316] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A dehumidification system, characterized in that, The system includes: Fresh air ducts and regenerative air ducts; The rotary dehumidification assembly includes a first rotary wheel, a second rotary wheel, and a first regeneration heater; The first and second rotating wheels are sequentially arranged on the air duct path of the fresh air duct. The air inlet of the fresh air duct is connected to the outside, and the air outlet of the fresh air duct is connected to the production workshop. The first regenerative heater, the second rotor, and the first rotor are sequentially arranged on the air duct path of the regenerative air duct. The air inlet of the regenerative air duct is connected to the fresh air duct, and the air outlet of the regenerative air duct is connected to the outside. The controller is used to control the opening degree of the first regenerative heater to a first opening degree when the dew point value at the air outlet of the fresh air duct is inconsistent with the first dew point reference value. The rotary dehumidification assembly further includes a first surface cooler, which is disposed on the air duct path of the fresh air duct and located between the first rotary wheel and the second rotary wheel; The controller is further configured to: control the opening of the first surface cooler to be fully open when the duration of the first opening degree being greater than the first opening degree threshold reaches a first duration and the dew point value of the air outlet of the fresh air duct is still greater than the first dew point reference value.

2. The system according to claim 1, characterized in that, The rotary dehumidification assembly also includes a second regeneration heater and a return air duct. The second regeneration heater is disposed on the air duct path of the regeneration air duct and is located between the second rotary wheel and the first rotary wheel. The air inlet of the return air duct is connected to the production workshop, and the air outlet of the return air duct is connected to the fresh air duct. The connection between the return air duct and the fresh air duct is located between the first rotary wheel and the second rotary wheel. The controller is also used to: control the opening degree of the second regenerator to the second opening degree when the dew point value at the connection between the return air duct and the fresh air duct is inconsistent with the second dew point reference value.

3. The system according to claim 2, characterized in that, The rotary dehumidification assembly also includes a second surface cooler, which is disposed on the air duct path of the fresh air duct and located on the side of the first rotary wheel away from the second rotary wheel; The controller is further configured to: control the opening of the second surface cooler to be fully open when the duration of the second opening degree being greater than the second opening degree threshold reaches the second duration, and the dew point value at the connection between the return air duct and the fresh air duct is still greater than the second dew point reference value.

4. The system according to claim 2, characterized in that, The rotary dehumidification assembly also includes a regeneration exhaust fan, which is disposed on the air duct path of the regeneration air duct and located on the side of the second rotary wheel away from the first rotary wheel; The controller is further configured to: control the operating frequency of the regenerative exhaust fan to the rated frequency value of the regenerative exhaust fan when the duration during which the second opening degree is greater than the second opening degree threshold reaches the second duration, and the dew point value at the connection between the return air duct and the fresh air duct is still greater than the second dew point reference value.

5. The system according to any one of claims 1 to 4, characterized in that, The rotary dehumidification assembly also includes a blower, which is disposed on the air duct path of the fresh air duct and located on the side of the second rotary wheel away from the first rotary wheel; The controller is also used to: adjust the operating frequency of the blower according to the air volume value of the air outlet of the fresh air duct, so that the air volume value of the air outlet of the fresh air duct is within the air volume standard range required by the production workshop.

6. A dehumidification method, characterized in that, The method, applied to a dehumidification system as described in any one of claims 1 to 5, comprises: Obtain the dew point value of the air outlet of the fresh air duct; If the dew point value at the outlet of the fresh air duct is inconsistent with the first dew point reference value, the first opening degree of the first regeneration heater is determined based on the first difference between the dew point value at the outlet of the fresh air duct and the first dew point reference value. The opening degree of the first regenerative heater is controlled to be the first opening degree; If the duration during which the first opening degree is greater than the first opening degree threshold reaches a first duration, and the dew point value at the outlet of the fresh air duct is still greater than the first dew point reference value, the opening degree of the first surface cooler is controlled to be fully open.

7. The method according to claim 6, characterized in that, Determining the first opening degree of the first regenerator heater based on the first difference between the dew point value at the outlet of the fresh air duct and the first dew point reference value includes: Based on the first difference and the first coefficient, determine the first opening adjustment value of the first regenerative heater; The first opening degree is determined based on the first opening degree adjustment value and the current opening degree value of the first regenerative heater.

8. The method according to claim 6, characterized in that, Before determining the first opening degree of the first regenerator heater based on the first difference between the dew point value at the outlet of the fresh air duct and the first dew point reference value when the dew point value at the outlet of the fresh air duct is inconsistent with the first dew point reference value, the method further includes: Obtain the average dew point of the first workshop within the first time period; If the average dew point value of the first workshop is inconsistent with the workshop dew point reference value, the first dew point reference value is determined based on the third difference between the average dew point value of the first workshop and the workshop dew point reference value.

9. The method according to claim 8, characterized in that, The step of determining the first dew point reference value based on the third difference between the first workshop dew point average value and the workshop dew point reference value includes: The first dew point adjustment value is determined based on the third difference and the second coefficient; Based on the first dew point adjustment value, the current first dew point reference value is updated to obtain the updated first dew point reference value.

10. The method according to claim 8, characterized in that, When the dew point value at the outlet of the fresh air duct is inconsistent with the first dew point reference value, the first dew point reference value is determined based on a third difference between the first workshop dew point average value and the workshop dew point reference value, including: If the average dew point of the first workshop is less than or equal to the workshop dew point reference value, the average dew point of the second workshop in the target sub-time period of the first time period is obtained, and the target sub-time period is the earlier part of the first time period. If the average dew point value of the second workshop is greater than the workshop dew point reference value, the first dew point reference value is determined based on the fourth difference between the average dew point value of the second workshop and the workshop dew point reference value and the third difference.

11. The method according to claim 6, characterized in that, The method further includes: If the duration during which the first opening degree is greater than the first opening degree threshold is less than the first duration, or if the dew point value at the outlet of the fresh air duct is less than or equal to the first dew point reference value, the first temperature value of the air entering the second rotor is obtained. The opening of the first surface cooler is adjusted based on the first temperature value so that the temperature of the air entering the second rotor reaches the first temperature reference value.

12. The method according to any one of claims 6 to 11, characterized in that, The rotary dehumidification assembly of the dehumidification system further includes a second regeneration heater and a return air duct; the method further includes: Obtain the dew point value at the connection between the return air duct and the fresh air duct; If the dew point value at the connection between the return air duct and the fresh air duct is inconsistent with the second dew point reference value, the second opening degree of the second regeneration heater is determined based on the second difference between the dew point value at the connection between the return air duct and the fresh air duct and the second dew point reference value. The opening degree of the second regenerative heater is controlled to the second opening degree.

13. The method according to claim 12, characterized in that, Determining the second opening degree of the second regeneration heater based on the second difference between the dew point value at the connection between the return air duct and the fresh air duct and the second dew point reference value includes: The second opening adjustment value of the second regenerative heater is determined based on the second difference and the third coefficient. The second opening degree is determined based on the second opening degree adjustment value and the current opening degree value of the second regenerative heater.

14. The method according to claim 12, characterized in that, The method further includes: If the duration during which the first opening degree is greater than the first opening degree threshold reaches a first duration, and the dew point value at the outlet of the fresh air duct is still greater than the first dew point reference value, the current second dew point reference value is updated based on the preset second dew point adjustment value to obtain the updated second dew point reference value.

15. The method according to claim 12, characterized in that, The rotary dehumidification assembly of the dehumidification system further includes a second surface cooler; the method further includes: If the duration during which the second opening degree is greater than the second opening degree threshold reaches the second duration, and the dew point value at the connection between the return air duct and the fresh air duct is still greater than the second dew point reference value, the opening degree of the second surface cooler is controlled to be fully open.

16. The method according to claim 15, characterized in that, The method further includes: If the duration during which the second opening degree is greater than the second opening degree threshold is less than the second duration, or if the dew point value at the connection between the return air duct and the fresh air duct is less than or equal to the second dew point reference value, the second temperature value and the first dew point value of the air entering the first rotor are obtained. Based on the second temperature value and the first dew point value, the opening of the second surface cooler is adjusted so that the temperature value of the air entering the first impeller reaches the second temperature reference value, and the dew point value of the air entering the first impeller reaches the third dew point reference value.

17. The method according to claim 12, characterized in that, The rotary dehumidification component of the dehumidification system further includes a regeneration exhaust fan, and the outlet of the regeneration air duct of the dehumidification system is provided with a regeneration exhaust valve; the method further includes: If the duration during which the second opening degree is greater than the second opening degree threshold reaches the second duration, and the dew point value at the connection between the return air duct and the fresh air duct is still greater than the second dew point reference value, the opening degree of the regeneration exhaust valve is controlled to be fully open, and the operating frequency of the regeneration exhaust fan is controlled to be the rated frequency value of the regeneration exhaust fan.

18. The method according to claim 17, characterized in that, The method further includes: If the duration during which the second opening degree is greater than the second opening degree threshold is less than the second duration, or if the dew point value at the connection between the return air duct and the fresh air duct is less than or equal to the second dew point reference value, then obtain the third temperature value of the air discharged from the first rotor. The operating frequency of the regenerative exhaust fan is adjusted based on the third temperature value so that the temperature of the air discharged from the first impeller reaches the third temperature reference value.

19. The method according to any one of claims 8 to 10, characterized in that, The rotary dehumidification assembly of the dehumidification system also includes a blower, and the air inlet of the fresh air duct of the dehumidification system is equipped with a fresh air valve; the method further includes: When the average dew point of the first workshop is greater than the reference dew point value of the workshop, the operating frequency of the blower is controlled to be the rated frequency value of the blower. Based on the difference between the rated frequency value of the blower and the operating frequency value before adjustment, the opening of the fresh air valve is adjusted so that the air volume of the fresh air duct outlet is within the air volume standard range required by the production workshop.

20. The method according to claim 6, characterized in that, The rotary dehumidification assembly of the dehumidification system also includes a blower, and the air inlet of the fresh air duct of the dehumidification system is equipped with a fresh air valve; the method further includes: Obtain the workshop pressure value of the production workshop, and the air volume value of the air outlet of the fresh air duct; The opening of the fresh air valve is adjusted based on the workshop pressure value to ensure that the workshop pressure value is within the pressure standard range required by the production workshop. The operating frequency of the blower is adjusted based on the air volume value so that the air volume value is within the air volume standard range required by the production workshop.

Images