Control method of air handling device, air handling device, and storage medium

Abstract

The application discloses a kind of air treatment equipment control method, air treatment equipment and storage medium.Therein, air treatment equipment includes air duct, first system and second system, first system includes first heat exchanger, second system includes second heat exchanger, first heat exchanger and second heat exchanger are arranged in air duct and along the airflow direction in air duct sequentially, this method includes: obtaining the first temperature of first heat exchanger and the second temperature of second heat exchanger;According to first temperature and second temperature determine target control parameter;According to target control parameter control first system runs and / or control second system runs, so that the energy efficiency of air treatment equipment reaches target energy efficiency.The application aims to improve the energy efficiency of air treatment equipment, to improve the air treatment effect of air treatment equipment.

Description

Technical Field

[0001] This invention relates to the field of air treatment technology, and more particularly to a control method for air treatment equipment, an air treatment device, and a storage medium. Background Technology

[0002] With the development of economy and technology and the continuous improvement of people's living standards, the application of air handling equipment is becoming more and more widespread, such as air conditioners or fresh air systems. Among them, some air handling equipment uses a dual system to exchange heat with the air in the duct in order to regulate the temperature and humidity of the air.

[0003] Currently, when air handling equipment uses more than one heat exchange system to regulate air, the operation of each heat exchange system is generally controlled independently. This can easily lead to poor overall energy efficiency of the air handling equipment during operation, failing to achieve the required energy efficiency and affecting the air conditioning effect of the air handling equipment. Summary of the Invention

[0004] The main objective of this invention is to provide a control method for an air handling device, an air handling device, and a storage medium, with the aim of improving the energy efficiency of the air handling device and thus enhancing its air handling effect.

[0005] To achieve the above objectives, the present invention provides a control method for an air handling device. The air handling device includes an air duct, a first system, and a second system. The first system includes a first heat exchanger, and the second system includes a second heat exchanger. The first heat exchanger and the second heat exchanger are disposed within the air duct and arranged sequentially along the airflow direction within the air duct. The control method for the air handling device includes the following steps:

[0006] Obtain the first temperature of the first heat exchanger and the second temperature of the second heat exchanger;

[0007] The target control parameters are determined based on the first temperature and the second temperature;

[0008] The first system and / or the second system are controlled according to the target control parameters to ensure that the air handling equipment achieves the target energy efficiency.

[0009] Optionally, the step of determining the target control parameter for the output capacity of the air handling equipment based on the first temperature and the second temperature includes:

[0010] Determine the relationship between the first temperature and the second temperature;

[0011] Determine the magnitude relationship between the relationship value and the target numerical range corresponding to the target energy efficiency;

[0012] The target control parameter is determined based on the magnitude relationship.

[0013] Optionally, the relationship value includes a first ratio of the first temperature to the second temperature, and the step of determining the target control parameter based on the magnitude relationship includes:

[0014] When both the first heat exchanger and the second heat exchanger are used as evaporators, and when the magnitude relationship is such that the first ratio is greater than the upper limit of the target value range, the target control parameters are determined to include increasing the cooling capacity output by the first heat exchanger and / or decreasing the cooling capacity output by the second heat exchanger.

[0015] When both the first heat exchanger and the second heat exchanger function as evaporators, and when the magnitude relationship is such that the first ratio is less than the lower limit of the target value range, the target control parameters are determined to include reducing the cooling capacity output by the first heat exchanger and / or increasing the cooling capacity output by the second heat exchanger.

[0016] Optionally, when the magnitude relationship is such that the first ratio is greater than the upper limit of the target value range, determining the target control parameter includes the step of increasing the cooling capacity output of the first heat exchanger and / or decreasing the cooling capacity output of the second heat exchanger.

[0017] When the magnitude relationship is such that the first ratio is greater than the upper limit of the target value range, one of the first control parameter and the second control parameter is determined as the target control parameter based on the second temperature and / or reference parameter;

[0018] The reference parameters include the air outlet parameter value of the air duct and / or the environmental parameter value of the indoor space connected by the air duct. The first control parameter is to increase the cooling capacity output of the first heat exchanger, and the second control parameter is to decrease the cooling capacity output of the second heat exchanger.

[0019] Optionally, the step of determining one of the first control parameter and the second control parameter as the target control parameter based on the second temperature and / or reference parameter includes:

[0020] When the second temperature is greater than the first preset temperature, the second control parameter is determined to be the target control parameter; when the second temperature is less than or equal to the first preset temperature, the first control parameter is determined to be the target control parameter.

[0021] And / or, when the reference parameter is greater than the corresponding first preset parameter, the first control parameter is determined to be the target control parameter; when the reference parameter is less than or equal to the corresponding first preset parameter, the second control parameter is determined to be the target control parameter.

[0022] Optionally, when the magnitude relationship is such that the first ratio is less than the lower limit of the target value range, determining the target control parameter includes the step of reducing the cooling capacity output of the first heat exchanger and / or increasing the cooling capacity output of the second heat exchanger.

[0023] When the magnitude relationship is such that the first ratio is less than the lower limit of the target value range, one of the third control parameter and the fourth control parameter is determined as the target control parameter based on the second temperature and / or reference parameter;

[0024] The reference parameters include the air outlet parameter value of the air duct and / or the environmental parameter value of the indoor space connected by the air duct. The third control parameter is to reduce the cooling capacity output of the first heat exchanger, and the fourth control parameter is to increase the cooling capacity output of the second heat exchanger.

[0025] Optionally, the step of determining one of the third and fourth control parameters as the target control parameter based on the second temperature and / or reference parameter includes:

[0026] When the second temperature is greater than the second preset temperature, the fourth control parameter is determined as the target control parameter; when the second temperature is less than or equal to the second preset temperature, the third control parameter is determined as the target control parameter.

[0027] And / or, when the reference parameter is greater than the corresponding second preset parameter, the fourth control parameter is determined as the target control parameter; when the reference parameter is less than or equal to the corresponding second preset parameter, the third control parameter is determined as the target control parameter.

[0028] Optionally, the air outlet parameter values ​​include air outlet temperature and / or air outlet humidity, and the environmental parameter values ​​include ambient temperature and / or ambient humidity.

[0029] Optionally, before the step of obtaining the first temperature of the first heat exchanger and the second temperature of the second heat exchanger, the method further includes:

[0030] Obtain the first heat exchange area of ​​the first heat exchanger and the second heat exchange area of ​​the second heat exchanger;

[0031] The target value range is determined based on the first heat exchange area and the second heat exchange area.

[0032] Optionally, the ratio of the first heat exchange area to the second heat exchange area is defined as the second ratio, and the values ​​within the target value range are positively correlated with the second ratio.

[0033] Optionally, the first system includes a first refrigerant circulation loop, the first refrigerant circulation loop including a first heat exchanger and a first compressor; the second system includes a second refrigerant circulation loop, the second refrigerant circulation loop including a second heat exchanger and a second compressor; the step of controlling the operation of the first system and / or controlling the operation of the second system according to the target control parameters to enable the air handling equipment to achieve the target energy efficiency includes:

[0034] When the target control parameter includes increasing the heat exchange capacity of the first heat exchanger, the first compressor is controlled to increase its operating frequency.

[0035] When the target control parameter includes reducing the heat exchange capacity of the first heat exchanger, the first compressor is controlled to reduce its operating frequency.

[0036] When the target control parameter includes increasing the heat exchange capacity of the second heat exchanger, the second compressor is controlled to increase its operating frequency.

[0037] When the target control parameter includes reducing the heat exchange capacity of the second heat exchanger, the operating frequency of the second compressor is reduced.

[0038] Furthermore, in order to achieve the above objectives, this application also proposes an air handling device, the air handling device comprising:

[0039] Air duct;

[0040] A first system, the first system including a first heat exchanger disposed within the air duct;

[0041] The second system includes a second heat exchanger disposed in the air duct, and the first heat exchanger and the second heat exchanger are arranged sequentially along the airflow direction in the air duct.

[0042] A control device, wherein both the first system and the second system are connected to the control device, the control device comprising: a memory, a processor, and a control program for an air handling device stored in the memory and executable on the processor, wherein the control program for the air handling device, when executed by the processor, implements the steps of the control method for the air handling device as described in any of the preceding claims.

[0043] In addition, to achieve the above objectives, this application also proposes a storage medium storing a control program for an air handling device, which, when executed by a processor, implements the steps of the control method for the air handling device as described in any of the preceding claims.

[0044] This invention proposes a control method for an air handling equipment. Based on an air handling equipment comprising at least a first system and a second system, a first heat exchanger in the first system and a second heat exchanger in the second system are arranged sequentially along the airflow direction within the air duct of the air handling equipment. This method controls the operation of the first system and / or the second system based on target control parameters determined by the first temperature of the first heat exchanger and the second temperature of the second heat exchanger. This achieves adjustment of the heat exchange relationship between the first and second systems within the air duct. The first and second systems are no longer independently controlled, but rather coordinated and adjusted according to the actual heat exchange state of the first and second heat exchangers within the air duct. This ensures coordinated operation of the first and second systems, enabling the overall energy efficiency of the air handling equipment to reach the target energy efficiency. This effectively solves the problem of poor energy efficiency caused by independent control of the first and second systems, thereby improving the energy efficiency of the air handling equipment and enhancing its air handling effect. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the system structure of an embodiment of the air handling equipment of the present invention;

[0046] Figure 2 This is a schematic diagram of the hardware structure involved in the operation of an embodiment of the air handling equipment of the present invention;

[0047] Figure 3 This is a flowchart illustrating an embodiment of the control method for the air handling equipment of the present invention;

[0048] Figure 4 This is a schematic flowchart of another embodiment of the control method for the air handling equipment of the present invention;

[0049] Figure 5 for Figure 4 A detailed flowchart of step S23.

[0050] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0051] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0052] The main solution of this invention is as follows: the air handling equipment includes a duct, a first system, and a second system. The first system includes a first heat exchanger, and the second system includes a second heat exchanger. The first heat exchanger and the second heat exchanger are disposed within the duct and arranged sequentially along the airflow direction within the duct. The control method of the air handling equipment includes the following steps: obtaining a first temperature of the first heat exchanger and a second temperature of the second heat exchanger; determining a target control parameter based on the first temperature and the second temperature; and controlling the operation of the first system and / or the operation of the second system based on the target control parameter, so that the energy efficiency of the air handling equipment reaches the target energy efficiency.

[0053] In existing technologies, when air handling equipment uses more than one heat exchange system to regulate air, the operation of each heat exchange system is generally controlled independently. This can easily lead to poor overall energy efficiency of the air handling equipment during operation, failing to achieve the required energy efficiency and affecting the air conditioning effect of the air handling equipment.

[0054] The present invention provides the above-mentioned solution, which aims to improve the energy efficiency of air handling equipment in order to improve the air handling effect of the air handling equipment.

[0055] This invention provides an air handling device. In this embodiment, the air handling device is a fresh air system. In other embodiments, the air handling device may also be a device for internally circulating and regulating indoor air, such as an air conditioner.

[0056] In this embodiment of the invention, reference is made to Figure 1 and Figure 2 The air handling equipment includes a first air duct 01, a first system 1, a second system 2, and a control device 100. The first system 1 includes a first heat exchanger 11, and the second system 2 includes a second heat exchanger 21. The first heat exchanger 11 and the second heat exchanger 21 are disposed within the first air duct 01 and arranged sequentially along the airflow direction within the first air duct 01. Both the first system 1 and the second system 2 are connected to the control device 100, which can be used to control the operation of the first system 1 and the second system 2.

[0057] The first air duct 01 is connected to the air outlet of the indoor environment. In this embodiment, the first air duct 01 is a fresh air duct connecting the indoor and outdoor environments. Outdoor fresh air can be sent into the room through the first air duct 01. The first heat exchanger 11 and the second heat exchanger 21 are arranged sequentially from the fresh air inlet toward the air outlet of the indoor environment. In other embodiments, the first air duct 01 can also be an internal circulation air duct for the indoor environment. The first heat exchanger 11 and the second heat exchanger 21 are arranged sequentially from the return air inlet of the first air duct 01 toward the air outlet of the indoor environment.

[0058] The first heat exchanger 11 is located upstream of the first air duct 01, and the second heat exchanger 21 is located downstream of the first air duct 01. The air entering the first air duct 01 first flows through the first heat exchanger 11 for heat exchange, and the air after heat exchange through the first heat exchanger 11 flows through the second heat exchanger 21 for heat exchange.

[0059] Specifically, a first fan 31 may be installed in the first air duct 01. When the first fan 31 is turned on, it can drive air to flow through the first air duct 01. Specifically, when the first fan 31 is turned on, it can drive outdoor fresh air to enter the first air duct 01 from the side where the first heat exchanger 11 is located, and send it into the indoor environment from the side where the second heat exchanger 21 is located.

[0060] In this embodiment, both the first system 1 and the second system 2 are refrigerant circulation systems. (Refer to...) Figure 1 The first system 1 includes a first refrigerant circulation loop, which includes a first compressor 12, a first heat exchanger 11, a first throttling device 13 and a third heat exchanger 14 connected in series. The second refrigerant circulation loop includes a second compressor 22, a second heat exchanger 21, a second throttling device 23 and a fourth heat exchanger 24 connected in series.

[0061] In this embodiment, the air conditioner further includes a second air duct 02 separated from the first air duct 01. The second air duct 02 connects the outdoor environment with the indoor exhaust vent, allowing indoor air to be exhausted outdoors through the second air duct 02. A second fan 32 may be installed within the second air duct 02, driving the indoor air to flow through the second air duct 02 and be exhausted outdoors. The third heat exchanger 14 is located outdoors, and the fourth heat exchanger 24 is located within the second air duct 02. In other embodiments, both the third heat exchanger 14 and the fourth heat exchanger 24 may be located outdoors, or both may be located within the second air duct 02. Here, "outdoor" specifically refers to the area outside the indoor environment connected by the first air duct 01.

[0062] When the first system 1 is in heating mode, the refrigerant flowing out of the first compressor 12 flows through the first heat exchanger 11, the first throttling device 13 and the third heat exchanger 14 in sequence and then flows back to the first compressor 12. When the first system 1 is in cooling mode, the refrigerant flowing out of the first compressor 12 flows through the third heat exchanger 14, the first throttling device 13 and the first heat exchanger 11 in sequence and then flows back to the first compressor 12.

[0063] When the second system 2 is in heating mode, the refrigerant flowing out of the first compressor 12 flows sequentially through the second heat exchanger 21, the second throttling device 23 and the fourth heat exchanger 24 and then flows back to the second compressor 22. When the second system 2 is in cooling mode, the refrigerant flowing out of the second compressor 22 flows sequentially through the fourth heat exchanger 24, the second throttling device 23 and the second heat exchanger 21 and then flows back to the second compressor 22.

[0064] Furthermore, in this embodiment, referring to Figure 1 The first system 1 also includes a third fan 33 corresponding to the third heat exchanger 14. When the third fan 33 is turned on, it drives the air in the environment where the third heat exchanger 14 is located to exchange heat with the third heat exchanger 14. The second system 2 also includes a fourth fan corresponding to the fourth heat exchanger 24. When the fourth fan is turned on, it drives the air in the environment where the fourth heat exchanger 24 is located to exchange heat with the fourth heat exchanger 24. When the fourth heat exchanger 24 is located in the second air duct, the fourth fan and the second fan 32 can be the same fan.

[0065] In this embodiment of the invention, when the first heat exchanger 11 is running as an evaporator, the first system 1 is in a refrigeration operation state, and at this time, the third heat exchanger 14 is running as a condenser; when the second heat exchanger 21 is running as an evaporator, the second system 2 is in a refrigeration operation state; at this time, the fourth heat exchanger 24 is running as a condenser.

[0066] In other embodiments, the first system 1 may further include a first heat exchange module and a first electronic expansion valve disposed within the first air duct 01. The first heat exchange module, the first electronic expansion valve, and the first heat exchanger 11 are connected in series, with the first heat exchange module located downstream of the second heat exchanger 21. The second system 2 may further include a second heat exchange module and a second electronic expansion valve disposed within the first air duct 01. The second heat exchange module, the second electronic expansion valve, and the second heat exchanger 21 are connected in series, with the second heat exchange module located downstream of the second heat exchanger 21. In this embodiment, when the first heat exchanger 11 operates as an evaporator, the first system 1 can be in a cooling operation state. In this state, both the first heat exchanger 11 and the first heat exchange module operate as evaporators, and the third heat exchanger 14 operates as a condenser. When the first heat exchanger 11 operates as an evaporator, the first system 1 can also be in a dehumidification and reheat operation state. In this state, the first heat exchanger 11 operates as an evaporator, and both the first heat exchange module and the third heat exchanger 14 operate as condensers. When the second heat exchanger 21 operates as an evaporator, the second system 2 can be in a refrigeration operation state. At this time, both the second heat exchanger 21 and the second heat exchange module operate as evaporators, and the fourth heat exchanger 24 operates as a condenser. When the second heat exchanger 21 operates as an evaporator, the second system 2 can also be in a dehumidification and reheat operation state. At this time, the second heat exchanger 21 operates as an evaporator, and both the second heat exchange module and the fourth heat exchanger 24 operate as condensers.

[0067] In other embodiments, the first system 1 and the second system 2 may also be other systems with heat exchange functions besides the refrigerant circulation system, such as an electric auxiliary heating system.

[0068] Furthermore, in this embodiment, referring to Figure 2The first system 1 further includes a first temperature sensor 4 disposed on the first heat exchanger 11, and the second system 2 further includes a second temperature sensor 5 disposed on the second heat exchanger 21. Both the first temperature sensor 4 and the second temperature sensor 5 are connected to the control device 100, and the control device 100 can acquire the data detected by the first temperature sensor 4 and the second temperature sensor 5. The first temperature sensor 4 is used to detect the first temperature of the first heat exchanger 11, and the second temperature sensor 5 is used to detect the second temperature of the second heat exchanger 21.

[0069] In this embodiment of the invention, reference is made to Figure 2 The control device 100 of the air handling equipment includes a processor 1001 (e.g., CPU), a memory 1002, a timer 1003, etc. The components in the control device 100 are connected via a communication bus. The memory 1002 can be a high-speed RAM or a stable, non-volatile memory, such as a disk drive. Optionally, the memory 1002 can also be a storage device independent of the aforementioned processor 1001.

[0070] Those skilled in the art will understand that Figure 2 The device structure shown does not constitute a limitation on the device and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0071] like Figure 2 As shown, the memory 1002, which serves as a storage medium, may include a control program for an air handling device. Figure 2 In the device shown, the processor 1001 can be used to call the control program of the air handling equipment stored in the memory 1002 and execute the relevant steps of the control method of the air handling equipment in the following embodiments.

[0072] This invention also provides a control method for an air handling device, which is applied to the aforementioned air handling device.

[0073] Reference Figure 3 This application proposes an embodiment of a control method for an air handling device. In this embodiment, the control method for the air handling device includes:

[0074] Step S10: Obtain the first temperature of the first heat exchanger and the second temperature of the second heat exchanger;

[0075] Specifically, the data detected by the first temperature sensor located on the coil of the first heat exchanger can be used as the first temperature; the data detected by the second temperature sensor located on the coil of the second heat exchanger can be used as the second temperature.

[0076] Step S10 can be executed at preset intervals during the operation of the air handling equipment or when the air conditioner reaches preset conditions.

[0077] Step S20: Determine the target control parameter based on the first temperature and the second temperature;

[0078] The target control parameter is used to adjust the output capacity ratio of the first system and the second system. The output capacity ratio of the first system and the second system includes the ratio of the heat exchange capacity of the first heat exchanger to that of the second heat exchanger.

[0079] Different target control parameters result in different amounts of heat exchange when the air entering the duct flows through the first and second heat exchangers in sequence.

[0080] The target control parameters may specifically include at least one control parameter of any type in the first system and the second system that is related to the adjustment of heat exchange in the duct, such as the frequency control parameters of the first system and / or the second system, the fan control parameters of the first system and / or the second system, and / or the operation control parameters of the throttling device in the first system and / or the second system.

[0081] The target control parameter may include at least one of a first control parameter, a second control parameter, a third control parameter, and a fourth control parameter. The first control parameter includes increasing the heat exchange capacity of the first heat exchanger, the second control parameter includes decreasing the heat exchange capacity of the second heat exchanger, the third control parameter includes decreasing the heat exchange capacity of the first heat exchanger, and the fourth control parameter includes increasing the heat exchange capacity of the second heat exchanger.

[0082] Different first temperatures and different second temperatures correspond to different target control parameters. The correspondence between the first temperature, the second temperature, and the target control parameters can be preset, and the correspondence can include calculation relationships, mapping relationships, etc. Based on this correspondence, the target control parameters corresponding to the current first temperature and second temperature can be determined.

[0083] Specifically, the relationship between the first temperature and the second temperature can be determined (e.g., ratio, difference, product, or sum), and the target control parameter can be determined based on this relationship. Alternatively, the first temperature and the second temperature can each be set with corresponding thresholds. The quantitative or magnitude relationship between the first temperature and its corresponding threshold can be determined as the first relationship, and the quantitative or magnitude relationship between the second temperature and its corresponding threshold can be determined as the second relationship. The target control parameter can be determined based on the first and second relationships.

[0084] Step S30: Control the operation of the first system and / or the operation of the second system according to the target control parameters, so that the energy efficiency of the air handling equipment reaches the target energy efficiency.

[0085] The energy efficiency of an air handling unit specifically characterizes its overall heat exchange efficiency for air within the duct. The target energy efficiency is an energy efficiency value greater than a preset value (e.g., 50% of the optimal energy efficiency). In this embodiment, the target energy efficiency is the optimal energy efficiency of the air handling unit. In other embodiments, the target energy efficiency may also be an energy efficiency value other than the optimal energy efficiency, such as 85% or 95% of the optimal energy efficiency.

[0086] When the target control parameter includes the control parameter of the first system, the first system is controlled to operate according to the target control parameter; when the target control parameter includes the control parameter of the second system, the second system is controlled to operate according to the target control parameter; when the target control parameter includes the control parameter of the first system and the control parameter of the second system, the first system and the second system can be controlled to operate according to the target control parameter.

[0087] This invention proposes a control method for an air handling device. Based on an air handling device comprising at least a first system and a second system, a first heat exchanger in the first system and a second heat exchanger in the second system are arranged sequentially along the airflow direction within the air duct of the air handling device. This method controls the operation of the first system and / or the second system based on target control parameters determined by the first temperature of the first heat exchanger and the second temperature of the second heat exchanger. This achieves adjustment of the heat exchange relationship between the first and second systems within the air duct. The first and second systems are no longer independently controlled, but rather coordinated and adjusted according to the actual heat exchange state of the first and second heat exchangers within the air duct. This ensures coordinated operation of the first and second systems, enabling the overall energy efficiency of the air handling device to reach the target energy efficiency. This effectively solves the problem of poor energy efficiency caused by independent control of the first and second systems, thereby improving the energy efficiency of the air handling device and enhancing its air handling effect.

[0088] Furthermore, in this embodiment, the control method of the air handling equipment further includes: controlling both the first heat exchanger and the second heat exchanger to operate as evaporators, and performing the step of obtaining the first temperature of the first heat exchanger and the second temperature of the second heat exchanger. In this embodiment, when both the first heat exchanger and the second heat exchanger operate as evaporators, the heat exchange relationship between the first system and the second system operating in the air duct is adjusted based on the temperatures of the first heat exchanger and the second heat exchanger, thereby effectively improving the efficiency of the air conditioner during cooling and / or dehumidification operation.

[0089] In other embodiments, step S10 may also be performed when both the first system and the second system are in heating mode; step S10 may also be performed when one of the first system and the second system is in heating mode, and the other of the first system and the second system is in cooling mode and / or dehumidification mode.

[0090] Furthermore, based on the above embodiments, another embodiment of the control method for the air handling equipment of this application is proposed. In this embodiment, reference is made to... Figure 4 Step S20 includes:

[0091] Step S21: Determine the relationship between the first temperature and the second temperature;

[0092] The relationship value is specifically a characteristic value that characterizes the quantitative relationship between the first temperature and the second temperature. In this embodiment, the relationship value includes a first ratio of the first temperature and the second temperature. Specifically, the first temperature is defined as T1, and the second temperature as T2, then the first ratio = T1 / T2. In other embodiments, the relationship value may also include the difference, sum, or product of the first temperature and the second temperature.

[0093] Step S22: Determine the magnitude relationship between the relationship value and the target numerical range corresponding to the target energy efficiency;

[0094] The target numerical range specifically refers to the range of values ​​that the air handling equipment needs to reach to achieve the target energy efficiency. The target numerical range can be a set of values ​​including a single value, meaning that the upper and lower limits of the target numerical range are the same value. Alternatively, in this embodiment, the target numerical range can be a set of values ​​including more than one value. In this embodiment, the target numerical range is an interval with both an upper and lower limit. In other embodiments, the target numerical range can also be an interval with an upper limit but no lower limit, or an interval with a lower limit but no upper limit.

[0095] The size relationship specifically includes the relationship value being greater than the value within the target value range, the relationship value being less than the value within the target value range, or the relationship value being equal to the value within the target value range.

[0096] Step S23: Determine the target control parameter based on the magnitude relationship.

[0097] Different magnitude relationships correspond to different target control parameters.

[0098] In this embodiment, the relationship value includes a first ratio of the first temperature to the second temperature. Based on this, refer to Figure 5 Step S23 includes:

[0099] Step S231: When both the first heat exchanger and the second heat exchanger are used as evaporators, and when the magnitude relationship is that the first ratio is greater than the upper limit of the target value range, the target control parameters are determined to include increasing the cooling capacity output by the first heat exchanger and / or decreasing the cooling capacity output by the second heat exchanger.

[0100] Specifically, the first control parameter is defined as increasing the cooling capacity output of the first heat exchanger, the second control parameter is defined as decreasing the cooling capacity output of the second heat exchanger, the third control parameter is defined as decreasing the cooling capacity output of the first heat exchanger, and the fourth control parameter is defined as increasing the cooling capacity output of the second heat exchanger. Based on this, when the magnitude relationship is such that the first ratio is greater than the upper limit of the target value range, at least one of the first control parameter and the second control parameter can be determined as the target control parameter based on the default fixed parameter or according to the actual operating condition parameters of the air handling equipment.

[0101] When the first ratio is greater than the upper limit of the target value range, it indicates that the ratio of the output cooling capacity of the first system and the second system in the air duct is too small. Increasing the output cooling capacity of the first heat exchanger will lower the evaporation temperature of the first heat exchanger, while decreasing the output cooling capacity of the second heat exchanger will raise the evaporation temperature of the second heat exchanger. This will increase the ratio of the output cooling capacity of the first system and the second system, and decrease the first ratio to approach the target value range, so that the air handling equipment can achieve the target energy efficiency.

[0102] Step S232: When both the first heat exchanger and the second heat exchanger are used as evaporators, and when the magnitude relationship is that the first ratio is less than the lower limit of the target value range, the target control parameters are determined to include reducing the cooling capacity output by the first heat exchanger and / or increasing the cooling capacity output by the second heat exchanger.

[0103] In this system, when the first heat exchanger operates as an evaporator, the first system can be in either a cooling operation or a dehumidification and reheat operation. Similarly, when both second heat exchangers operate as evaporators, the second system can be in either a cooling operation or a dehumidification and reheat operation. This application uses the example of both the first and second systems operating in a cooling mode for illustration.

[0104] When the first ratio is less than the lower limit of the target value range, at least one of the third and fourth control parameters can be determined as the target control parameter based on the default fixed parameters or the actual operating conditions of the air handling equipment.

[0105] When the first ratio is less than the lower limit of the target value range, it indicates that the ratio of the output cooling capacity of the first system and the second system in the air duct is too large. The reduction in the output cooling capacity of the first heat exchanger increases the evaporation temperature of the first heat exchanger, while the increase in the output cooling capacity of the second heat exchanger decreases the evaporation temperature of the second heat exchanger. This can reduce the ratio of the output cooling capacity of the first system and the second system, and increase the first ratio to approach the target value range, so that the air handling equipment can achieve the target energy efficiency.

[0106] In this embodiment, both the first and second heat exchangers operate as evaporators with a lower limit of the target value range greater than 1. This means that when the air handling unit achieves its target energy efficiency, the heat exchange capacity of the first heat exchanger is greater than that of the second heat exchanger. Based on this, the air handling unit can be guaranteed to achieve optimal energy efficiency. In other embodiments, the lower limit of the target value range may be less than 1.

[0107] In other embodiments, the relationship value also includes the difference between the first temperature and the second temperature. When the difference is greater than the upper limit of a preset difference range, the target control parameter is determined to include increasing the cooling capacity output by the first heat exchanger and / or decreasing the cooling capacity output by the second heat exchanger. When the difference is less than the lower limit of a preset difference range, the target control parameter is determined to include decreasing the cooling capacity output by the first heat exchanger and / or increasing the cooling capacity output by the second heat exchanger.

[0108] In this embodiment, the relationship value can accurately reflect the actual relationship of heat exchange between the first heat exchanger and the second heat exchanger in the air duct. The magnitude of the relationship value and the target value range can accurately reflect the deviation between the actual heat exchange relationship of the two systems in the air duct and the heat exchange relationship required for the target energy efficiency. Therefore, determining the target control parameter based on this magnitude relationship is beneficial to ensuring that when the operation of the first system and / or the second system is controlled according to the target control parameter, the energy efficiency of the air handling equipment can quickly and accurately reach the target energy efficiency, thereby effectively improving the energy efficiency of the air handling equipment and enhancing the air handling effect of the air handling equipment. When the relationship value is the first ratio between the first temperature and the second temperature, it can more accurately reflect the proportion of the two-stage system in the air duct. When the air handling equipment is running in cooling mode, the cooling capacity output by the first heat exchanger and / or the cooling capacity output by the second heat exchanger is adjusted by comparing the first ratio with the upper and lower limits of the target value range. This ensures that the proportion of the first heat exchanger and the second heat exchanger is neither too large nor too small when the air handling equipment is running in cooling mode, effectively improving the energy efficiency of the air handling equipment in cooling and / or dehumidifying operation, thereby improving the cooling and / or dehumidifying effect of the air handling equipment on the air entering the air duct.

[0109] Furthermore, in this embodiment, step S231 includes: when both the first system and the second system are operating in cooling mode, and when the magnitude relationship is such that the first ratio is greater than the upper limit of the target value range, determining one of the first control parameter and the second control parameter as the target control parameter based on the second temperature and / or reference parameters; the reference parameters include the air outlet parameter value of the air duct and / or the environmental parameter value of the indoor space connected by the air duct, the first control parameter is to increase the cooling capacity output of the first heat exchanger, and the second control parameter is to decrease the cooling capacity output of the second heat exchanger.

[0110] In this embodiment, a target control parameter is determined based on one of the second temperature and a reference parameter. For example, the target control parameter can be determined based on the magnitude or quantitative relationship between the second temperature and its corresponding preset temperature, or based on the quantitative or magnitude relationship between the reference parameter and its corresponding preset parameter threshold. In other embodiments, the target control parameter can also be determined by combining the second temperature and the reference parameter. For example, the magnitude or quantitative relationship between the characteristic temperature corresponding to the reference parameter and the second temperature can be determined, and the target control parameter can be determined based on this relationship.

[0111] In this embodiment, the air outlet parameter values ​​include air outlet temperature and / or air outlet humidity, and the environmental parameter values ​​include ambient temperature and / or ambient humidity. In other embodiments, the air outlet parameter values ​​may also include air outlet volume, and the environmental parameter values ​​may also include pollutant concentration.

[0112] In one implementation of this embodiment, the step of determining one of the first control parameter and the second control parameter as the target control parameter based on the second temperature and / or reference parameter includes: when the second temperature is greater than the first preset temperature, the second control parameter is determined to be the target control parameter; when the second temperature is less than or equal to the first preset temperature, the first control parameter is determined to be the target control parameter.

[0113] The first preset temperature is specifically used to distinguish the temperature range where the second heat exchanger is at risk of freezing. When the second temperature is less than or equal to the first preset temperature, it indicates that the second heat exchanger is at risk of freezing. In this case, reducing the output cooling capacity of the second heat exchanger can effectively prevent the second heat exchanger from freezing and ensure the stability of the second system operation while improving the energy efficiency of the air handling equipment. When the second temperature is greater than the first preset temperature, it indicates that the second heat exchanger is not at risk of freezing. In this case, increasing the output cooling capacity of the first heat exchanger can further improve the cooling capacity of the second heat exchanger. Based on this, while improving the energy efficiency of the air handling equipment and ensuring the stable operation of the second heat exchanger, the cooling and / or dehumidification effects of the air handling equipment can be further improved.

[0114] In another embodiment of this example, the step of determining one of the first control parameter and the second control parameter as the target control parameter based on the second temperature and / or reference parameter includes: when the reference parameter is greater than the corresponding first preset parameter, determining the first control parameter as the target control parameter; when the reference parameter is less than or equal to the corresponding first preset parameter, determining the second control parameter as the target control parameter.

[0115] The first preset parameter is specifically a threshold parameter used to distinguish the cooling and / or dehumidification needs of air handling equipment. Different types of reference parameters correspond to different first preset parameters. When the reference parameter includes the outlet air parameter, the first preset parameter includes the first parameter threshold corresponding to the outlet air parameter. For example, when the outlet air parameter includes the outlet air temperature, the corresponding first parameter threshold includes the preset outlet air temperature threshold; similarly, when the outlet air parameter includes the outlet air humidity, the corresponding first parameter threshold includes the preset outlet air humidity threshold. When the reference parameter includes the ambient temperature, the corresponding first preset parameter includes the preset ambient temperature; when the reference parameter includes the ambient humidity, the corresponding first preset parameter includes the preset ambient humidity.

[0116] When the reference parameter is less than or equal to the corresponding first preset parameter, it indicates that the cooling and / or dehumidification demand of the air handling unit is relatively small. In this case, choosing to reduce the output cooling capacity of the second heat exchanger can effectively prevent the outlet air temperature and humidity of the air handling unit from becoming too low, thereby preventing excessive cooling and / or excessive dehumidification in the room and ensuring indoor comfort, while improving the energy efficiency of the air handling unit. When the reference parameter is greater than the first preset parameter, it indicates that the cooling and / or dehumidification demand of the air handling unit is relatively large. In this case, choosing to increase the output cooling capacity of the first heat exchanger can help further reduce the cooling capacity of the second heat exchanger. Based on this, the overall cooling capacity of the air handling unit can be increased while improving its energy efficiency, thereby improving the cooling and / or dehumidification effect of the air handling unit.

[0117] In another implementation of this embodiment, the step of determining one of the first control parameter and the second control parameter as the target control parameter based on the second temperature and / or the reference parameter includes: when the second temperature is greater than a first preset temperature, and when the reference parameter is less than or equal to the corresponding first preset parameter, determining the second control parameter as the target control parameter; when the second temperature is less than or equal to the first preset temperature, and when the reference parameter is greater than the corresponding first preset parameter, determining the first control parameter as the target control parameter.

[0118] In this embodiment, the output cooling capacity is controlled by selecting one of the first system and the second system based on the second temperature and / or reference parameters. The second temperature accurately reflects the impact of the current state of the second heat exchanger on the system's operational stability. The adjustment direction of the air handling equipment's output capacity is adapted to the second temperature, which is beneficial for improving the energy efficiency of the air handling equipment while ensuring the reliability of system operation. The reference parameters accurately reflect the current cooling and / or dehumidification requirements of the air handling equipment. The adjustment direction of the air handling equipment's output capacity is adapted to the reference parameters, which is beneficial for improving the energy efficiency of the air handling equipment while improving its cooling and / or dehumidification effect.

[0119] Furthermore, in this embodiment, step S232 includes: when the magnitude relationship is that the first ratio is less than the lower limit of the target value range, determining one of the third control parameter and the fourth control parameter as the target control parameter based on the second temperature and / or reference parameter;

[0120] The reference parameters include the air outlet parameter value of the air duct and / or the environmental parameter value of the indoor space connected by the air duct. The third control parameter is to reduce the cooling capacity output of the first heat exchanger, and the fourth control parameter is to increase the cooling capacity output of the second heat exchanger.

[0121] In this embodiment, one of the third and fourth control parameters is determined as the target control parameter based on one of the second temperature and the reference parameter. For example, the target control parameter can be determined based on the magnitude or quantitative relationship between the second temperature and its corresponding preset temperature, or it can be determined based on the magnitude or quantitative relationship between the reference parameter and its corresponding preset parameter threshold. In other embodiments, the target control parameter can also be determined by combining the second temperature and the reference parameter. For example, the magnitude or quantitative relationship between the characteristic temperature corresponding to the reference parameter and the second temperature can be determined, and the target control parameter can be determined based on this magnitude or quantitative relationship.

[0122] In this embodiment, the air outlet parameter values ​​include air outlet temperature and / or air outlet humidity, and the environmental parameter values ​​include ambient temperature and / or ambient humidity. In other embodiments, the air outlet parameter values ​​may also include air outlet volume, and the environmental parameter values ​​may also include pollutant concentration.

[0123] In one implementation of this embodiment, the step of determining one of the third and fourth control parameters as the target control parameter based on the second temperature and / or reference parameters includes: when the second temperature is greater than the second preset temperature, determining the fourth control parameter as the target control parameter; when the second temperature is less than or equal to the second preset temperature, determining the third control parameter as the target control parameter.

[0124] The second preset temperature is specifically used to distinguish the temperature range where the second heat exchanger is at risk of freezing. In this embodiment, the first preset temperature mentioned above and the second preset temperature here are different temperatures. In other embodiments, the first preset temperature mentioned above and the second preset temperature here are the same temperature. When the second temperature is less than or equal to the second preset temperature, it indicates that the second heat exchanger is at risk of freezing. In this case, choosing to reduce the output cooling capacity of the first heat exchanger can help the temperature of the second heat exchanger recover. This can effectively prevent the second heat exchanger from freezing and ensure the stability of the second system operation while improving the energy efficiency of the air handling equipment. When the second temperature is greater than the second preset temperature, it indicates that the second heat exchanger is not at risk of freezing. In this case, choosing to increase the output cooling capacity of the second heat exchanger can help reduce the outlet air temperature and humidity of the air duct, thereby improving the cooling efficiency and / or dehumidification efficiency of the indoor space connected by the air duct. Based on this, while improving the energy efficiency of the air handling equipment and ensuring the stable operation of the second heat exchanger, the cooling and / or dehumidification effect of the air handling equipment can be further improved.

[0125] In another embodiment of this example, the step of determining one of the third control parameter and the fourth control parameter based on the second temperature and / or reference parameter includes: when the reference parameter is greater than the corresponding second preset parameter, determining the fourth control parameter as the target control parameter; when the reference parameter is less than or equal to the corresponding second preset parameter, determining the third control parameter as the target control parameter.

[0126] The second preset parameter is specifically a threshold parameter used to distinguish the cooling and / or dehumidification requirements of air handling equipment. Different types of reference parameters correspond to different second preset parameters. When the reference parameter includes the outlet air parameter, the second preset parameter includes the corresponding second parameter threshold. For example, when the outlet air parameter includes the outlet air temperature, the corresponding second parameter threshold includes the preset outlet air temperature threshold; similarly, when the outlet air parameter includes the outlet air humidity, the corresponding second parameter threshold includes the preset outlet air humidity threshold. When the reference parameter includes the ambient temperature, the corresponding second parameter threshold includes the preset ambient temperature; when the reference parameter includes the ambient humidity, the corresponding second parameter threshold includes the preset ambient humidity.

[0127] When the reference parameter is less than or equal to the corresponding second preset parameter, it indicates that the cooling and / or dehumidification demand of the air handling unit is relatively small. In this case, reducing the output cooling capacity of the first heat exchanger is chosen. The increase in the temperature of the first heat exchanger can also raise the temperature of the second heat exchanger. This can effectively prevent the outlet air temperature and humidity of the air handling unit from becoming too low, thus preventing excessive cooling and / or excessive dehumidification and ensuring indoor comfort, while improving the energy efficiency of the air handling unit. When the reference parameter is greater than the second preset parameter, it indicates that the cooling and / or dehumidification demand of the air handling unit is relatively large. In this case, increasing the output cooling capacity of the second heat exchanger is chosen. The increase in the cooling capacity of the second heat exchanger is conducive to a further reduction in the cooling capacity of the second heat exchanger. Based on this, the overall cooling and / or dehumidification capacity of the air handling unit can be increased while improving the energy efficiency of the air handling unit, thereby improving the cooling and / or dehumidification effect of the air handling unit.

[0128] In another implementation of this embodiment, when the second temperature is greater than the first preset temperature, and when the reference parameter is greater than the corresponding second preset parameter, the fourth control parameter is determined to be the target control parameter; when the second temperature is less than or equal to the first preset temperature, and when the reference parameter is less than or equal to the corresponding second preset parameter, the third control parameter is determined to be the target control parameter.

[0129] In this embodiment, the output cooling capacity is controlled by selecting one of the first system and the second system based on the second temperature and / or reference parameters. The second temperature accurately reflects the impact of the current state of the second heat exchanger on the system's operational stability. The adjustment direction of the air handling equipment's output capacity is adapted to the second temperature, which is beneficial for improving the energy efficiency of the air handling equipment while ensuring the reliability of system operation. The reference parameters accurately reflect the current cooling and / or dehumidification requirements of the air handling equipment. The adjustment direction of the air handling equipment's output capacity is adapted to the reference parameters, which is beneficial for improving the energy efficiency of the air handling equipment while improving its cooling and / or dehumidification effect.

[0130] Furthermore, based on the above embodiments, another embodiment of the control method for the air handling equipment of this application is proposed. In this embodiment, before the step of obtaining the first temperature of the first heat exchanger and the second temperature of the second heat exchanger, the method further includes: obtaining the first heat exchange area of ​​the first heat exchanger and the second heat exchange area of ​​the second heat exchanger; and determining the target numerical range based on the first heat exchange area and the second heat exchange area. Different first heat exchange areas and different second heat exchanger areas may correspond to different numerical ranges for the target numerical range. Specifically, a critical value (such as an upper limit and / or a lower limit) of the target numerical range can be calculated based on the first heat exchange area and the second heat exchange area, and the target numerical range is determined based on this critical value.

[0131] In this embodiment, the ratio of the first heat exchange area to the second heat exchange area is defined as the second ratio, and the values ​​within the target numerical range are positively correlated with the second ratio. For example, the second ratio can be determined as the lower limit of the target numerical range, and the lower limit is adjusted according to a preset adjustment range to obtain the upper limit of the target numerical range. The set of values ​​between the lower and upper limits is then used as the target numerical range. Alternatively, the second ratio can be determined as the upper limit of the target numerical range, and the upper limit is adjusted according to a preset adjustment range to obtain the lower limit of the target numerical range. The set of values ​​between the lower and upper limits is then used as the target numerical range. The upper and / or lower limits are positively correlated with the second ratio. In other embodiments, the second ratio may also be uncorrelated or not clearly correlated with the values ​​within the target numerical range.

[0132] In other embodiments, the target numerical range can also be determined based on the second difference between the first heat exchange area and the second heat exchange area, and the target numerical range is positively correlated with the second difference.

[0133] In this embodiment, the target energy efficiency range corresponding to the target energy efficiency of the air handling equipment is determined by adapting the heat exchange areas of the first and second heat exchangers. This helps ensure that when the operation of the first and / or second systems is controlled based on the target energy efficiency range, the energy efficiency of the air handling equipment can accurately reach the target energy efficiency. The target energy efficiency range is positively correlated with the second ratio, which helps to accurately achieve the target energy efficiency while simultaneously improving the overall dehumidification or cooling capacity of the air handling equipment.

[0134] Furthermore, based on any of the above embodiments, another embodiment of the control method for the air handling equipment of this application is proposed. In this embodiment, the first system includes a first refrigerant circulation loop, the first refrigerant circulation loop including a first heat exchanger and a first compressor; the second system includes a second refrigerant circulation loop, the second refrigerant circulation loop including a second heat exchanger and a second compressor; the step of controlling the operation of the first system and / or controlling the operation of the second system according to the target control parameters, so that the energy efficiency of the air handling equipment reaches the target energy efficiency, includes:

[0135] When the target control parameter includes increasing the heat exchange capacity of the first heat exchanger, the first compressor is controlled to increase its operating frequency.

[0136] When the target control parameter includes reducing the heat exchange capacity of the first heat exchanger, the first compressor is controlled to reduce its operating frequency.

[0137] When the target control parameter includes increasing the heat exchange capacity of the second heat exchanger, the second compressor is controlled to increase its operating frequency.

[0138] When the target control parameter includes reducing the heat exchange capacity of the second heat exchanger, the operating frequency of the second compressor is reduced.

[0139] For example, when both the first and second heat exchangers are operating as evaporators, if the target control parameter includes increasing the cooling capacity output of the first heat exchanger, the first compressor is controlled to increase its operating frequency; if the target control parameter includes decreasing the cooling capacity output of the first heat exchanger, the first compressor is controlled to decrease its operating frequency; if the target control parameter includes increasing the cooling capacity output of the second heat exchanger, the second compressor is controlled to increase its operating frequency; and if the target control parameter includes decreasing the cooling capacity output of the second heat exchanger, the second compressor is controlled to decrease its operating frequency.

[0140] For example, when both the first heat exchanger and the second heat exchanger are operating as condensers, if the target control parameter includes increasing the heat output of the first heat exchanger, the first compressor is controlled to increase its operating frequency; if the target control parameter includes decreasing the heat output of the first heat exchanger, the first compressor is controlled to decrease its operating frequency; if the target control parameter includes increasing the heat output of the second heat exchanger, the second compressor is controlled to increase its operating frequency; and if the target control parameter includes decreasing the heat output of the second heat exchanger, the second compressor is controlled to decrease its operating frequency.

[0141] In this embodiment, adjusting the compressor frequency in the first system and / or the second system to adjust the heat exchange relationship between the first heat exchanger and the second heat exchanger in the air duct is beneficial to achieving rapid adjustment of the heat exchange relationship, thereby enabling the air handling equipment to quickly reach the target energy efficiency.

[0142] Furthermore, embodiments of the present invention also propose a storage medium storing a control program for an air handling device. When the control program for the air handling device is executed by a processor, it implements the relevant steps of any embodiment of the control method for the air handling device described above.

[0143] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0144] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0145] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, air handling equipment, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0146] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A control method for an air handling equipment, characterized in that, The air handling equipment includes an air duct, a first system, and a second system. The first system includes a first heat exchanger, and the second system includes a second heat exchanger. The first heat exchanger and the second heat exchanger are disposed within the air duct and arranged sequentially along the airflow direction within the air duct. The control method of the air handling equipment includes the following steps: Obtain the first temperature of the first heat exchanger and the second temperature of the second heat exchanger; The target control parameters are determined based on the first temperature and the second temperature; The first system and / or the second system are controlled according to the target control parameters so that the energy efficiency of the air handling equipment reaches the target energy efficiency. The step of determining the target control parameter based on the first temperature and the second temperature includes: Determine the relationship value between the first temperature and the second temperature, wherein the relationship value includes a first ratio of the first temperature to the second temperature; Determine the magnitude relationship between the relationship value and the target numerical range corresponding to the target energy efficiency; When both the first heat exchanger and the second heat exchanger are used as evaporators, and when the magnitude relationship is such that the first ratio is greater than the upper limit of the target value range, the target control parameters are determined to include increasing the cooling capacity output by the first heat exchanger and / or decreasing the cooling capacity output by the second heat exchanger. When both the first heat exchanger and the second heat exchanger function as evaporators, and when the magnitude relationship is such that the first ratio is less than the lower limit of the target value range, the target control parameters are determined to include reducing the cooling capacity output by the first heat exchanger and / or increasing the cooling capacity output by the second heat exchanger.

2. The control method for the air handling equipment as described in claim 1, characterized in that, When the magnitude relationship is such that the first ratio is greater than the upper limit of the target value range, determining the target control parameter includes the step of increasing the cooling capacity output of the first heat exchanger and / or decreasing the cooling capacity output of the second heat exchanger. When the magnitude relationship is such that the first ratio is greater than the upper limit of the target value range, one of the first control parameter and the second control parameter is determined as the target control parameter based on the second temperature and / or reference parameter; The reference parameters include the air outlet parameter value of the air duct and / or the environmental parameter value of the indoor space connected by the air duct. The first control parameter is to increase the cooling capacity output of the first heat exchanger, and the second control parameter is to decrease the cooling capacity output of the second heat exchanger.

3. The control method for the air handling equipment as described in claim 2, characterized in that, The step of determining one of the first control parameter and the second control parameter as the target control parameter based on the second temperature and / or reference parameter includes: When the second temperature is greater than the first preset temperature, the second control parameter is determined to be the target control parameter; when the second temperature is less than or equal to the first preset temperature, the first control parameter is determined to be the target control parameter. And / or, when the reference parameter is greater than the corresponding first preset parameter, the first control parameter is determined to be the target control parameter; when the reference parameter is less than or equal to the corresponding first preset parameter, the second control parameter is determined to be the target control parameter.

4. The control method for the air handling equipment as described in claim 1, characterized in that, When the magnitude relationship is such that the first ratio is less than the lower limit of the target value range, determining the target control parameter includes the steps of reducing the cooling capacity output of the first heat exchanger and / or increasing the cooling capacity output of the second heat exchanger. When the magnitude relationship is such that the first ratio is less than the lower limit of the target value range, one of the third control parameter and the fourth control parameter is determined as the target control parameter based on the second temperature and / or reference parameter; The reference parameters include the air outlet parameter value of the air duct and / or the environmental parameter value of the indoor space connected by the air duct. The third control parameter is to reduce the cooling capacity output of the first heat exchanger, and the fourth control parameter is to increase the cooling capacity output of the second heat exchanger.

5. The control method for the air handling equipment as described in claim 4, characterized in that, The step of determining one of the third and fourth control parameters as the target control parameter based on the second temperature and / or reference parameter includes: When the second temperature is greater than the second preset temperature, the fourth control parameter is determined as the target control parameter; when the second temperature is less than or equal to the second preset temperature, the third control parameter is determined as the target control parameter. And / or, when the reference parameter is greater than the corresponding second preset parameter, the fourth control parameter is determined as the target control parameter; when the reference parameter is less than or equal to the corresponding second preset parameter, the third control parameter is determined as the target control parameter.

6. The control method of an air processing apparatus according to claim 2 or 4, characterized by, The air outlet parameter values ​​include air outlet temperature and / or air outlet humidity, and the environmental parameter values ​​include ambient temperature and / or ambient humidity.

7. The control method of an air treatment device according to claim 1, characterized by, Before the step of obtaining the first temperature of the first heat exchanger and the second temperature of the second heat exchanger, the method further includes: Obtain the first heat exchange area of ​​the first heat exchanger and the second heat exchange area of ​​the second heat exchanger; The target value range is determined based on the first heat exchange area and the second heat exchange area.

8. The control method for the air handling equipment as described in claim 7, characterized in that, The ratio of the first heat exchange area to the second heat exchange area is defined as the second ratio, and the values ​​within the target value range are positively correlated with the second ratio.

9. The control method for the air handling equipment as described in any one of claims 1 to 5, 7 to 8, characterized in that, The first system includes a first refrigerant circulation loop, which includes a first heat exchanger and a first compressor. The second system includes a second refrigerant circulation loop, which includes a second heat exchanger and a second compressor. The step of controlling the operation of the first system and / or the operation of the second system according to the target control parameters to enable the air handling equipment to achieve the target energy efficiency includes: When the target control parameter includes increasing the heat exchange capacity of the first heat exchanger, the first compressor is controlled to increase its operating frequency. When the target control parameter includes reducing the heat exchange capacity of the first heat exchanger, the first compressor is controlled to reduce its operating frequency. When the target control parameter includes increasing the heat exchange capacity of the second heat exchanger, the second compressor is controlled to increase its operating frequency. When the target control parameter includes reducing the heat exchange capacity of the second heat exchanger, the operating frequency of the second compressor is reduced.

10. An air handling device, characterized in that, The air handling equipment includes: Air duct; A first system, the first system including a first heat exchanger disposed within the air duct; The second system includes a second heat exchanger disposed in the air duct, and the first heat exchanger and the second heat exchanger are arranged sequentially along the airflow direction in the air duct. A control device, wherein both the first system and the second system are connected to the control device, the control device comprising: a memory, a processor, and a control program for an air handling device stored in the memory and executable on the processor, wherein the control program for the air handling device, when executed by the processor, implements the steps of the control method for the air handling device as described in any one of claims 1 to 9.

11. A storage medium, characterized in that, The storage medium stores a control program for an air handling device, which, when executed by a processor, implements the steps of the control method for the air handling device as described in any one of claims 1 to 9.

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