A control method, apparatus, system, and storage medium for an air source system.

Abstract

This application relates to a control method, apparatus, air source system, and storage medium for an air source system. The method includes: acquiring the actual cooling temperature of the air source system during the cooling season; controlling the operation of an evaporative chiller and a water pump assembly when the actual cooling temperature indicates insufficient cooling; determining a first actual load rate of the operating evaporative chiller and water pump assembly if the air source system still has insufficient cooling after the evaporative chiller and water pump assembly have started operating; and controlling the heat pump unit and water pump assembly based on the first actual load rate to ensure sufficient cooling in the air source system. This application enables the air source system to consistently achieve high-efficiency cooling, thereby improving the cooling energy efficiency of the air source system during the cooling season.

Description

Technical Field

[0001] This application relates to the field of air source system technology, and in particular to a control method, device, system and storage medium for an air source system. Background Technology

[0002] Air source heat pump systems are widely used in buildings due to their advantages such as low energy consumption and minimal environmental pollution. These systems typically include heat pump units to cool the building during the cooling season and heat it during the heating season. However, during the cooling season, the heat pump units are limited by the system's design, resulting in lower cooling efficiency for the air source heat pump system. Summary of the Invention

[0003] This application provides a control method, device, system, and storage medium for an air source system to solve the technical problem of low cooling energy efficiency of air source systems during the cooling season in the prior art.

[0004] In a first aspect, this application provides a control method for an air source system, the air source system including a heat pump unit, an evaporative chiller unit, and a water pump assembly, the water pump assembly being connected to the heat pump unit and the evaporative chiller unit respectively, the method comprising:

[0005] When the air source system is in the cooling season, obtain the actual cooling temperature of the air source system;

[0006] When it is determined that the air source system is not cooling sufficiently based on the actual cooling temperature, the evaporative chiller and the water pump assembly are controlled to operate.

[0007] If the air source system still provides insufficient cooling after the evaporative chiller and the water pump assembly have been put into operation, the first actual load rate of the evaporative chiller that has been put into operation is determined.

[0008] Based on the first actual load rate, the heat pump unit and the water pump assembly are controlled to ensure that the air source system provides sufficient cooling.

[0009] In an optional implementation, controlling the heat pump unit and the water pump assembly according to the first actual load rate to ensure sufficient cooling of the air source system includes:

[0010] A first comparison result is determined between the first actual load rate and the first preset load rate corresponding to the evaporative chiller, wherein the first preset load rate is used to characterize the load rate corresponding to the lowest energy efficiency when the evaporative chiller is cooling;

[0011] When the first comparison result indicates that the first actual load rate is less than or equal to the first preset load rate, the heat pump unit and the water pump assembly are controlled to operate, and the evaporative chiller is controlled to stop operating, so that the air source system can provide sufficient cooling.

[0012] In an optional implementation, the step of controlling the heat pump unit and the water pump assembly to operate, and controlling the evaporative chiller unit to stop operating, when the first comparison result indicates that the first actual load rate is less than or equal to the first preset load rate, to ensure sufficient cooling of the air source system, includes:

[0013] When the first comparison result is that the first actual load rate is less than or equal to the first preset load rate, the heat pump unit and the water pump assembly are controlled to work, and the evaporative chiller is controlled to stop working.

[0014] After the heat pump unit and the water pump assembly are in operation, determine the second actual load rate of the heat pump unit that has been turned on;

[0015] A second comparison result is determined between the second actual load rate and the second preset load rate corresponding to the heat pump unit. The second preset load rate is the ratio between the target product value and the preset cooling capacity corresponding to the heat pump unit. The target product value is the product of the preset cooling capacity corresponding to the evaporative chiller and the first preset load rate.

[0016] When the second comparison result indicates that the second actual load rate is greater than the second preset load rate, the evaporative chiller and the water pump assembly are controlled to operate, and the heat pump unit is controlled to stop operating.

[0017] After the evaporative chiller and the water pump assembly are operational, the process returns to the step of determining the first actual load rate of the operational evaporative chiller if the air source system still provides insufficient cooling, so that the air source system provides sufficient cooling.

[0018] In an optional embodiment, the air source system further includes a heat recovery unit and a water tank, the heat recovery unit being connected to the water tank and the water pump assembly;

[0019] Before performing the step of obtaining the actual cooling temperature of the air source system, the method further includes:

[0020] Obtain the first actual water temperature of the water tank;

[0021] When it is determined that the hot water in the air source system is insufficient based on the first actual water temperature, the heat recovery unit and the water pump assembly are controlled to operate.

[0022] After the heat recovery unit and the water pump assembly are in operation, the step of obtaining the actual cooling temperature of the air source system is performed.

[0023] In one optional embodiment, the water pump assembly includes a first water pump and a second water pump, wherein the first water pump is connected to the evaporative chiller and the second water pump is connected to the heat pump unit.

[0024] The control of the evaporative chiller and the water pump assembly includes:

[0025] Control the operation of the first water pump in the evaporative chiller unit and the water pump assembly;

[0026] The step of controlling the heat pump unit and the water pump assembly according to the first actual load rate to ensure sufficient cooling of the air source system includes:

[0027] Based on the first actual load rate, the second water pump in the heat pump unit and the water pump assembly is controlled to ensure that the air source system provides sufficient cooling.

[0028] In one optional implementation, there are multiple heat pump units, and the water pump assembly includes a second water pump connected to each of the heat pump units;

[0029] The method further includes:

[0030] When the air source system is in the heating season, obtain the actual heating temperature of the air source system;

[0031] When it is determined that the air source system is not heating sufficiently based on the actual heating temperature, the heat pump unit and the second water pump connected to the heat pump unit are controlled to operate in sequence so that the air source system can provide sufficient heating.

[0032] In an optional embodiment, the air source system further includes a heat recovery unit and a water tank, and the water pump assembly further includes a third water pump, wherein the heat recovery unit is connected to the water tank and the third water pump respectively;

[0033] The method further includes:

[0034] When the air source system is in the heating season, the second actual water temperature of the water tank is obtained;

[0035] When it is determined that the hot water in the air source system is insufficient based on the second actual water temperature, the heat recovery unit and the third water pump are controlled to operate so that the hot water in the air source system is sufficient.

[0036] In one optional implementation, there are multiple evaporative chiller units and multiple heat pump units;

[0037] After achieving the actual cooling temperature step of the air source system, the method further includes:

[0038] When it is determined that the air source system is not cooling sufficiently based on the actual cooling temperature, the water pump assembly is controlled to operate and each of the evaporative chiller units is controlled to operate sequentially.

[0039] When all the evaporative chillers are operating at a preset frequency and the air source system is still not cooling enough, the water pump assembly is controlled to operate and each of the heat pump units is controlled in turn to ensure that the air source system is cooling sufficiently. The preset frequency is used to characterize the maximum frequency at which the evaporative chillers are allowed to operate.

[0040] In an optional implementation, after achieving the actual cooling temperature step of the air source system, the method further includes:

[0041] When the air source system is determined to be overcooled based on the actual cooling temperature, if there are at least two working evaporative chillers and at least two working heat pump units in the air source system, the water pump assembly is controlled to work and the working heat pump units are controlled to stop working in sequence.

[0042] After controlling all the operating heat pump units to stop working, the water pump assembly is controlled to work and each of the operating evaporative chiller units is controlled to stop working in sequence, so that the air source system can provide sufficient cooling.

[0043] Secondly, this application provides a control device for an air source system, the air source system including a heat pump unit, an evaporative cooler unit, and a water pump assembly, the water pump assembly being connected to the heat pump unit and the evaporative cooler unit respectively, the device comprising:

[0044] The acquisition module is used to acquire the actual cooling temperature of the air source system when the air source system is in the cooling season;

[0045] The control module is used to control the operation of the evaporative chiller and the water pump assembly when it is determined that the air source system is not cooling sufficiently based on the actual cooling temperature.

[0046] The determination module is used to determine the first actual load rate of the working evaporative chiller if the air source system still provides insufficient cooling after the evaporative chiller and the water pump assembly have started working.

[0047] The control module is used to control the heat pump unit and the water pump assembly according to the first actual load rate, so as to ensure that the air source system provides sufficient cooling.

[0048] Thirdly, this application provides an air source system, including: a heat pump unit, an evaporative cooler unit, a water pump assembly, a processor, and a memory. The water pump assembly is connected to the heat pump unit and the evaporative cooler unit respectively. The processor is connected to the heat pump unit, the evaporative cooler unit, the water pump unit, and the memory respectively. The processor is used to execute the control program of the air source system stored in the memory to realize the control method of the air source system as described above.

[0049] Fourthly, this application provides a storage medium storing one or more programs that can be executed by one or more processors to implement the control method of the air source system as described above.

[0050] Compared with the prior art, the technical solution provided in this application has the following advantages. The method provided in this application is applied to an air source system, which includes a heat pump unit, an evaporative chiller unit, and a water pump assembly. The water pump assembly is connected to the heat pump unit and the evaporative chiller unit respectively. The method includes: when the air source system is in the cooling season, obtaining the actual cooling temperature of the air source system; when it is determined that the air source system is not cooling sufficiently based on the actual cooling temperature, controlling the evaporative chiller unit and the water pump assembly to work; if the air source system is still not cooling sufficiently after the evaporative chiller unit and the water pump assembly have worked, determining the first actual load rate of the working evaporative chiller unit; and controlling the heat pump unit and the water pump assembly according to the first actual load rate to ensure that the air source system is cooling sufficiently. Through the above methods, this application incorporates a heat pump unit and an evaporative cooling unit in the air source system. Since the evaporative cooling unit has a higher energy efficiency than the heat pump unit, when the air source system is not cooling sufficiently, the evaporative cooling unit is prioritized for operation. Furthermore, after the evaporative cooling unit is operating, the first actual load rate of the evaporative cooling unit is determined. If the energy efficiency of the evaporative cooling unit is determined to be poor based on the first actual load rate, the heat pump unit is switched to operate. This ensures that the air source system always operates with high energy efficiency during cooling, thereby improving the cooling energy efficiency of the air source system during the cooling season. Attached Figure Description

[0051] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0052] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0053] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0054] Figure 1 A schematic diagram of an air source system provided in an embodiment of this application;

[0055] Figure 2 A flowchart illustrating a control method for an air source system provided in an embodiment of this application;

[0056] Figure 3 A flowchart illustrating another control method for an air source system provided in an embodiment of this application;

[0057] Figure 4 A flowchart illustrating another control method for an air source system provided in an embodiment of this application;

[0058] Figure 5 This is a schematic diagram of another air source system provided in an embodiment of this application;

[0059] Figure 6 A flowchart illustrating another control method for an air source system provided in an embodiment of this application;

[0060] Figure 7 A schematic diagram of the structure of a control device for an air source system provided in an embodiment of this application;

[0061] Figure 8 This is a schematic diagram of another air source system provided in an embodiment of this application;

[0062] In the attached diagrams above:

[0063] 1. Evaporative chiller; 2. Heat pump unit; 3. Heat recovery unit; 4. Water pump assembly; 41. First water pump; 42. Second water pump; 43. Third water pump; 5. Return water pipeline; 6. Supply water pipeline; 7. Water collector; 8. Water distributor; 9. Water tank;

[0064] 10. Acquisition Module; 20. Control Module; 30. Determination Module;

[0065] 800. Air source system; 801. Processor; 802. Memory; 8021. Operating system; 8022. Application program; 803. User interface; 804. Network interface; 805. Bus system. Detailed Implementation

[0066] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0067] The following disclosure provides numerous different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0068] refer to Figure 2 , Figure 2 This is a flowchart illustrating a control method for an air source system provided in an embodiment of this application. The air source system provided in this application includes the following steps:

[0069] S201: Obtain the actual cooling temperature of the air source system during the cooling season.

[0070] In this embodiment, the cooling season can be understood as summer. During the summer, the air source system is typically required to cool the building. A temperature sensor is installed in the building, and when cooling control of the air source system is needed, the actual cooling temperature of the air source system is obtained through this sensor.

[0071] The method provided in this embodiment is applied to, for example, Figure 1 The air source system shown. Figure 1 The air source system includes a heat pump unit 2, an evaporative cooling unit 1, a heat recovery unit 3, a water tank 9, and a water pump assembly 4. The water pump assembly 4 is connected to the heat pump unit 2, the evaporative cooling unit 1, and the heat recovery unit 3, respectively. The heat recovery unit 3 is also connected to the water tank 9. The water pump assembly 4 includes a first water pump 41, a second water pump 42, and a third water pump 43. The first water pump 41 is connected to the evaporative cooling unit 1, the second water pump 42 is connected to the heat pump unit 2, and the third water pump 43 is connected to the heat recovery unit 3. In this embodiment, by directly connecting each unit to the water pump, the electric butterfly valve is eliminated, thereby improving the operational reliability of the air source system. Specifically, the heat pump unit can exchange heat with the air; the evaporative cooling unit is an evaporative cooling system suitable for refrigeration; and the heat recovery unit can supply hot water and refrigeration free of charge.

[0072] S202: When it is determined that the air source system is not cooling sufficiently based on the actual cooling temperature, control the operation of the evaporative chiller and water pump assembly.

[0073] In this embodiment, after obtaining the actual cooling temperature, it can be compared with a first temperature threshold. When the actual cooling temperature is less than the first temperature threshold, it indicates that the air source system is not cooling sufficiently. Since the energy efficiency of the evaporative chiller is higher than that of the heat pump unit, in order to ensure that the air source system can achieve efficient cooling during the cooling season, it is necessary to control the operation of the evaporative chiller and the water pump assembly. When the actual cooling temperature is greater than or equal to the first temperature threshold, it is necessary to further determine whether the actual cooling temperature is greater than or equal to the first temperature threshold and less than the second temperature threshold. When the actual cooling temperature is greater than or equal to the first temperature threshold and less than the second temperature threshold, it indicates that the air source system is cooling sufficiently, and the current operating state of the air source system can be maintained. When the actual cooling temperature is greater than or equal to the second temperature threshold, it indicates that the air source system is overcooling. If only the evaporative cooling unit is active in the air source system at this time, the evaporative cooling unit is controlled to ensure sufficient cooling in the air source system. If only the heat pump unit is active in the air source system at this time, the heat pump unit is controlled to ensure sufficient cooling in the air source system. If both the evaporative cooling unit and the heat pump unit are active in the air source system at this time, the heat pump unit can be prioritized to stop working based on the energy efficiency relationship between the evaporative cooling unit and the heat pump unit. If the air source system is still undercooled after the heat pump unit stops working, the evaporative cooling unit is controlled to ensure sufficient cooling in the air source system.

[0074] S203: If the air source system still provides insufficient cooling after the evaporative chiller and water pump assembly have been operating, determine the first actual load rate of the operating evaporative chiller.

[0075] In this embodiment, if the air source system still provides insufficient cooling after the evaporative cooling unit and water pump assembly are operating, the first actual load rate of the operating evaporative cooling unit is determined. This first actual load rate is used to determine whether it is necessary to switch to the heat pump unit to improve the energy efficiency of the air source system during cooling. The method for determining the first actual load rate can refer to existing technologies, and will not be elaborated here.

[0076] S204: Control the heat pump unit and water pump components according to the first actual load rate to ensure sufficient cooling of the air source system.

[0077] In this embodiment, after obtaining the first actual load rate, the first actual load rate can be compared with the load rate corresponding to the lowest energy efficiency of the evaporative chiller during cooling. If it is determined that the energy efficiency of the evaporative chiller is poor based on the first actual load rate, the evaporative chiller can be switched to control the heat pump unit and water pump assembly, thereby ensuring sufficient cooling of the air source system and thus guaranteeing the high-efficiency cooling of the air source system.

[0078] This application provides a control method for an air source system, in which a heat pump unit and an evaporative chiller unit are installed. Since the evaporative chiller unit has a higher energy efficiency than the heat pump unit, when the air source system is not cooling sufficiently, the evaporative chiller unit is prioritized to operate. After the evaporative chiller unit starts operating, the first actual load rate of the evaporative chiller unit is determined. If the energy efficiency of the evaporative chiller unit is determined to be poor based on the first actual load rate, the heat pump unit is switched to operate. This ensures that the air source system always operates with high energy efficiency during cooling, thereby improving the cooling energy efficiency of the air source system during the cooling season.

[0079] refer to Figure 3 , Figure 3 This is a flowchart illustrating another control method for an air source system provided in an embodiment of this application. The control method for an air source system provided in this application includes the following steps:

[0080] S301: Obtain the first actual water temperature of the water tank when the air source system is in the cooling season.

[0081] S302: When it is determined that the hot water in the air source system is insufficient based on the first actual water temperature, control the operation of the heat recovery unit and the water pump unit.

[0082] For steps S301 and S302, a temperature sensor is installed in the water tank to obtain the first actual water temperature. The first actual water temperature is compared with a third temperature threshold. If the first actual water temperature is lower than the third temperature threshold, it indicates that the air source system has insufficient hot water. In this case, the heat recovery unit and water pump unit need to be controlled to operate to provide free hot water. If the first actual water temperature is greater than or equal to the third temperature threshold, it indicates that the air source system has insufficient hot water. In this case, it is not necessary to control the heat recovery unit and water pump unit, and the step of obtaining the actual cooling temperature of the air source system in step S303 is executed. The third temperature threshold can be set according to actual needs; in this embodiment, the specific value of the third temperature threshold is not limited. In this embodiment, by controlling the heat recovery unit in the air source system, the air source system can achieve cooling, heating, and hot water functions.

[0083] S303: Obtain the actual cooling temperature of the air source system after the heat recovery unit and water pump assembly are in operation.

[0084] S304: When it is determined that the air source system is not cooling sufficiently based on the actual cooling temperature, control the operation of the evaporative chiller and water pump assembly.

[0085] Regarding steps S303 and S304, step S303 is the same as step S201, and step S304 is the same as step S202. For details, please refer to steps S201 and S202. This embodiment will not repeat them here.

[0086] In this embodiment, step S304, controlling the operation of the evaporative chiller and water pump assembly, includes:

[0087] Control the operation of the first water pump in the evaporative chiller and water pump assembly.

[0088] In controlling the operation of the evaporative chiller, the operation of the first water pump connected to it can reduce the occurrence of water mixing and improve the cooling efficiency of the air source system.

[0089] S305: After the evaporative chiller and water pump assembly are working, if the air source system is still not cooling, determine the first actual load rate of the already working evaporative chiller.

[0090] S306: Determine the first comparison result between the first actual load rate and the first preset load rate corresponding to the evaporative chiller.

[0091] S307: When the first comparison result is that the first actual load rate is less than or equal to the first preset load rate, control the heat pump unit and water pump assembly to work, and control the evaporative chiller unit to stop working, so as to ensure that the air source system provides sufficient cooling.

[0092] Regarding steps S306 and S307, the first preset load rate is used to characterize the load rate corresponding to the lowest energy efficiency of the evaporative chiller during cooling. When the first actual load rate is less than the first preset load rate, if the evaporative chiller is still used for cooling, the cooling capacity will be excessive, which will affect the cooling efficiency of the entire air source system. Therefore, it is necessary to switch to the heat pump unit for cooling so that the heat pump unit can operate in the high-efficiency range, thereby improving the cooling efficiency of the entire air source system. When switching to the heat pump unit, it is necessary to control the operation of the heat pump unit and the water pump assembly, and control the evaporative chiller to stop working, so as to realize the switching of the heat pump unit and ensure sufficient cooling of the air source system. It should be noted that when the first comparison result is that the first actual load rate is greater than the first preset load rate, it indicates that the energy efficiency of the evaporative chiller is better. At this time, the original control method can continue to be used, and there is no need to switch the heat pump unit. This embodiment determines the first actual load rate to realize the switching from the evaporative chiller unit to the heat pump unit, thereby ensuring the cooling efficiency of the air source system.

[0093] In this embodiment, step S307, when the first comparison result is that the first actual load rate is less than or equal to the first preset load rate, controls the heat pump unit and water pump assembly to work, and controls the evaporative chiller unit to stop working, so as to ensure sufficient cooling of the air source system, includes:

[0094] When the first comparison result is that the first actual load rate is less than or equal to the first preset load rate, the heat pump unit and water pump assembly are controlled to work, and the evaporative chiller is controlled to stop working.

[0095] After the heat pump unit and water pump assembly are operational, determine the second actual load rate of the heat pump unit that has been started.

[0096] Determine the second comparison result between the second actual load rate and the second preset load rate corresponding to the heat pump unit;

[0097] When the second comparison result shows that the second actual load rate is greater than the second preset load rate, the evaporative chiller and water pump assembly are controlled to work, and the heat pump unit is controlled to stop working.

[0098] After the evaporative chiller and water pump assembly are working, return to the step of determining the first actual load rate of the working evaporative chiller if the air source system is still not cooling enough, so as to ensure that the air source system is cooling sufficiently.

[0099] The second preset load rate is used to characterize the lower limit of the cooling efficiency of the air source system. The second preset load rate is the ratio between the target product and the preset cooling capacity corresponding to the heat pump unit. The target product is the product between the preset cooling capacity corresponding to the evaporative cooler and the first preset load rate. When switching to the heat pump unit to improve the cooling efficiency of the air source system, the second actual load rate of the activated heat pump unit is determined. The method for determining the second actual load rate can refer to existing technologies and will not be elaborated here. When the second actual load rate is greater than the second preset load rate, it indicates that continuing to control the heat pump unit results in poor cooling efficiency of the air source system. In this case, to improve the cooling efficiency of the air source system, the system switches to the evaporative cooler to achieve cooling. After switching to the evaporative cooler, the process can return to step S303 to ensure that the entire air source system can always achieve high-efficiency cooling until the air source system is sufficiently cooled. When the second actual load rate is less than or equal to the second preset load rate, it indicates that the heat pump unit can continue to be controlled without affecting the cooling efficiency of the air source system. The preset cooling capacity corresponding to the evaporative chiller and the preset cooling capacity corresponding to the heat pump unit can be set according to actual needs, and this embodiment does not impose specific limitations on them. This embodiment achieves the mutual switching between the evaporative chiller and the heat pump unit by judging the first actual load rate and the second actual load rate, thereby ensuring the cooling efficiency of the air source system.

[0100] In this embodiment, step S307, controlling the operation of the heat pump unit and water pump assembly, specifically includes:

[0101] Control the operation of the second water pump in the heat pump unit and water pump assembly, and control the operation of the first water pump in the water pump assembly to stop working.

[0102] In controlling the operation of the heat pump unit, by operating the second water pump connected to it and controlling the first water pump to stop operating, the occurrence of water mixing can be reduced and the cooling efficiency of the air source system can be improved.

[0103] In this embodiment, there are multiple heat pump units, and the water pump assembly includes a second water pump connected to each heat pump unit. The control method for an air source system provided in this embodiment further includes the following steps:

[0104] When the air source system is in the heating season, obtain the actual heating temperature of the air source system;

[0105] When the actual heating temperature indicates that the air source system is not heating sufficiently, the heat pump unit and the second water pump connected to the heat pump unit are controlled sequentially to ensure that the air source system provides sufficient heating.

[0106] The heating season can be understood as winter. The actual heating temperature of the air source system can be obtained through temperature sensors in the building. When the actual heating temperature is lower than the fourth temperature threshold, each heat pump unit in the air source system and the second water pump connected to each heat pump unit can be operated sequentially until the air source system provides sufficient heating. During the heating season, operating each heat pump unit and the second water pump connected to each heat pump unit in sequence not only reduces water mixing but also improves the heating efficiency of the air source system. When the actual heating temperature is greater than or equal to the fifth temperature threshold, each heat pump unit and the second water pump connected to each heat pump unit in the air source system can be operated sequentially until the air source system provides sufficient heating. When the actual heating temperature is greater than or equal to the fourth temperature threshold and less than the fifth temperature threshold, it indicates that the air source system provides sufficient heating, and the current operating state can be maintained.

[0107] In this embodiment, in order to provide free hot water while heating, the control method for an air source system provided in this embodiment further includes the following steps:

[0108] When the air source system is in the heating season, obtain the second actual water temperature of the water tank;

[0109] When it is determined that the hot water in the air source system is insufficient based on the second actual water temperature, the heat recovery unit and the third water pump are controlled to operate so that the hot water in the air source system is sufficient.

[0110] The second actual water temperature in the water tank can be obtained through a temperature sensor inside the tank. Determining insufficient hot water in the air source system based on the second actual water temperature is similar to determining insufficient hot water based on the first actual water temperature, and will not be elaborated upon in this embodiment. When insufficient hot water is determined based on the second actual water temperature, the heat recovery unit and the third water pump connected to it can be controlled to operate, ensuring sufficient hot water in the air source system. This not only provides hot water during air source system heating but also reduces water mixing, thereby improving the heating efficiency of the air source system. It should be noted that when insufficient hot water is determined based on the second actual water temperature, it is not necessary to operate the heat recovery unit and the third water pump connected to it.

[0111] This application provides a control method for an air source system, in which a heat pump unit and an evaporative chiller unit are installed. Since the evaporative chiller unit has a higher energy efficiency than the heat pump unit, when the air source system is not cooling sufficiently, the evaporative chiller unit is prioritized to operate. After the evaporative chiller unit starts operating, the first actual load rate of the evaporative chiller unit is determined. If the energy efficiency of the evaporative chiller unit is determined to be poor based on the first actual load rate, the heat pump unit is switched to operate. This ensures that the air source system always operates with high energy efficiency during cooling, thereby improving the cooling energy efficiency of the air source system during the cooling season.

[0112] refer to Figure 4 , Figure 4 This is a flowchart illustrating another control method for an air source system provided in this application. The control method for an air source system provided in this application includes the following steps:

[0113] S401: Obtain the actual cooling temperature of the air source system during the cooling season.

[0114] S402: When it is determined that the air source system is not cooling sufficiently based on the actual cooling temperature, control the water pump assembly to operate and sequentially control the operation of each evaporative chiller unit.

[0115] S403: When all evaporative cooling units are operating at a preset frequency and the air source system is still not cooling sufficiently, control the water pump assembly to operate and sequentially control each heat pump unit to ensure that the air source system is cooling sufficiently.

[0116] S404: When the air source system is determined to be overcooled based on the actual cooling temperature, if there are at least two operating evaporative chillers and at least two operating heat pump units in the air source system, the operating heat pump units shall be stopped and the water pump components shall be controlled to operate in sequence.

[0117] S405: After controlling all operating heat pump units to stop working, it sequentially controls each operating evaporative chiller unit to stop working and controls the water pump components to work, so as to ensure sufficient cooling of the air source system.

[0118] Regarding steps S401 to S405 above, step S401 is the same as step S201 above. For details, please refer to step S201. In this embodiment, it will not be repeated here.

[0119] The method provided in this embodiment is applied to Figure 5 The air source system shown includes multiple evaporative chillers 1, multiple heat pump units 2, multiple heat recovery units 3, a water pump assembly 4, and a water tank 9. The water pump assembly 4 is connected to the multiple evaporative chillers 1, multiple heat pump units 2, and multiple heat recovery units 3, and the multiple heat recovery units 3 are connected to the water tank 9. The air source system also includes a return water line 5, a supply water line 6, a water collector 7, and a water distributor 8. The water collector 7 is connected to the water pump assembly 4 and each of the evaporative chillers 1, heat pump units 2, and heat recovery units 3 via the return water line 5. The water distributor 8 is connected to each of the evaporative chillers 1, heat pump units 2, and heat recovery units 3 via the supply water line 6. The water pump assembly 4 includes multiple first water pumps 41, multiple second water pumps 42, and multiple third water pumps 43. The number of first water pumps 41 is the same as that of evaporative cooling unit 1, the number of second water pumps 42 is the same as that of heat pump unit 2, and the number of third water pumps 43 is the same as that of heat recovery unit 3. One evaporative cooling unit 1 is connected to one first water pump 41, one heat pump unit 2 is connected to one second water pump 42, and one heat recovery unit 3 is connected to one third water pump 43.

[0120] The preset frequency is used to characterize the maximum frequency at which the evaporative chiller unit is allowed to operate. The preset frequency can be set according to actual needs; in this embodiment, the specific value of the preset frequency is not limited. The specific methods for determining insufficient or excessive cooling of the air source system based on the actual cooling temperature can be referred to the above description, and will not be repeated here. When insufficient cooling is determined based on the actual cooling temperature, the high-efficiency evaporative chiller unit and water pump assembly can be prioritized to ensure the cooling efficiency of the air source system. If all evaporative chiller units are operating at full frequency and the air source system is still insufficiently cooling, the heat pump units are sequentially controlled to operate to increase capacity and ensure sufficient cooling in the air source system. When excessive cooling is determined based on the actual cooling temperature, to ensure the cooling efficiency of the air source system, the low-efficiency heat pump units that are already operating can be prioritized to stop operating sequentially. After all operating heat pump units have stopped operating, if the air source system is still excessively cooling, the operating evaporative chiller units are sequentially controlled to stop operating until the air source system is sufficiently cooling, thereby ensuring the cooling efficiency of the air source system.

[0121] Specifically, when controlling the operation of each evaporative chiller unit sequentially, the first water pump connected to each evaporative chiller unit can be controlled sequentially. When controlling the operation of each heat pump unit sequentially, the second water pump connected to each heat pump unit can be controlled sequentially. When controlling the operation of a heat pump unit sequentially to stop working, the second water pump connected to each heat pump unit can be controlled sequentially to stop working. When controlling the operation of an evaporative chiller unit sequentially to stop working, the first water pump connected to each evaporative chiller unit can be controlled sequentially to stop working.

[0122] It should be noted that during the heating season, the actual heating temperature of the air source system is obtained. If it is determined that the air source system is not heating enough based on the actual heating temperature, a control method similar to that during the cooling season is implemented. If it is determined that the air source system is heating excessively based on the actual heating temperature, a control method similar to that during the cooling season is implemented.

[0123] This application provides a control method for an air source system, in which a heat pump unit and an evaporative chiller unit are installed. Since the evaporative chiller unit has a higher energy efficiency than the heat pump unit, when the air source system is not cooling sufficiently, the evaporative chiller unit is controlled first. If the air source system is still not cooling sufficiently after controlling the evaporative chiller unit, then the heat pump unit is controlled, so that the air source system always cools with high energy efficiency, thereby improving the cooling energy efficiency of the air source system during the cooling season.

[0124] The following is an example when there are multiple evaporative chillers, heat pump units, and heat recovery units. (Refer to...) Figure 6 The control process of the entire air source system is described in detail below:

[0125] When the air source system is in the cooling season, obtain the first actual water temperature of the water tank and the actual cooling temperature of the air source system.

[0126] Determine whether the first actual water temperature is less than the third temperature threshold;

[0127] When the first actual water temperature is less than the third temperature threshold, the heat recovery unit and water pump assembly are controlled to work so that the first actual water temperature is greater than or equal to the third temperature threshold.

[0128] When the first actual water temperature is greater than or equal to the third temperature threshold, there is no need to control the operation of the heat recovery unit and water pump assembly;

[0129] After controlling the heat recovery unit, determine whether the actual cooling temperature is less than the first temperature threshold.

[0130] When the actual cooling temperature is lower than the first temperature threshold, the water pump assembly is controlled and each evaporator unit is controlled in turn.

[0131] When all evaporative cooling units are operating at a preset frequency and the air source system is still not cooling enough, the water pump assembly is controlled to operate and each heat pump unit is controlled in sequence to ensure that the air source system is cooling sufficiently.

[0132] When the actual cooling temperature is greater than or equal to the first temperature threshold, determine whether the actual cooling temperature is greater than or equal to the second temperature threshold.

[0133] If the actual cooling temperature is greater than or equal to the second temperature threshold, and there are at least two working evaporative chillers and at least two working heat pump units in the air source system, the working heat pump units are controlled to stop working and the water pump components are controlled to work in sequence.

[0134] After controlling all working heat pump units to stop working, control each working evaporative chiller unit to stop working and control the water pump components to work, so as to ensure sufficient cooling of the air source system;

[0135] If the actual cooling temperature is lower than the second temperature threshold, the current operating status can be maintained.

[0136] During the heating season of the air source system, obtain the second actual water temperature of the water tank and the actual heating temperature of the air source system.

[0137] Determine whether the first actual water temperature is less than the third temperature threshold;

[0138] When the first actual water temperature is less than the third temperature threshold, the heat recovery unit and water pump assembly are controlled to work so that the first actual water temperature is greater than or equal to the third temperature threshold.

[0139] When the first actual water temperature is greater than or equal to the third temperature threshold, there is no need to control the operation of the heat recovery unit and water pump assembly;

[0140] Determine whether the actual heating temperature is lower than the fourth temperature threshold.

[0141] When the actual heating temperature is less than the fourth temperature threshold, each heat pump unit in the air source system and the second water pump connected to each heat pump unit are operated in sequence until the air source system provides sufficient heating.

[0142] When the actual heating temperature is greater than or equal to the fourth temperature threshold, determine whether the actual heating temperature is greater than the fifth temperature threshold.

[0143] When the actual heating temperature is greater than or equal to the fifth temperature threshold, each heat pump unit in the air source system and the second water pump connected to each heat pump unit are turned off in sequence until the air source system provides sufficient heating.

[0144] When the actual heating temperature is lower than the fifth temperature threshold, maintain the current operating status.

[0145] refer to Figure 7 , Figure 7 This is a schematic diagram of a control device for an air source system provided in an embodiment of this application. The control device for an air source system provided in this application is applied to an air source system including a heat pump unit, an evaporative chiller unit, and a water pump assembly. The water pump assembly is connected to the heat pump unit and the evaporative chiller unit respectively. The device includes an acquisition module 10, a control module 20, and a determination module 30. The acquisition module 10 is used to acquire the actual cooling temperature of the air source system when the air source system is in the cooling season. The control module 20 is used to control the evaporative chiller unit and the water pump assembly to operate when the actual cooling temperature indicates insufficient cooling in the air source system. The determination module 30 is used to determine a first actual load rate of the operating evaporative chiller unit if the air source system still has insufficient cooling after the evaporative chiller unit and the water pump assembly have operated. The control module 20 is used to control the heat pump unit and the water pump assembly according to the first actual load rate to ensure sufficient cooling in the air source system.

[0146] In this embodiment, the control module 20 is further configured to:

[0147] A first comparison result is determined between the first actual load rate and the first preset load rate corresponding to the evaporative chiller, wherein the first preset load rate is used to characterize the load rate corresponding to the lowest energy efficiency when the evaporative chiller is cooling;

[0148] When the first comparison result indicates that the first actual load rate is less than or equal to the first preset load rate, the heat pump unit and the water pump assembly are controlled to operate, and the evaporative chiller is controlled to stop operating, so that the air source system can provide sufficient cooling.

[0149] In this embodiment, the control module 20 is further configured to:

[0150] When the first comparison result is that the first actual load rate is less than or equal to the first preset load rate, the heat pump unit and the water pump assembly are controlled to work, and the evaporative chiller is controlled to stop working.

[0151] After the heat pump unit and the water pump assembly are in operation, determine the second actual load rate of the heat pump unit that has been turned on;

[0152] A second comparison result is determined between the second actual load rate and the second preset load rate corresponding to the heat pump unit. The second preset load rate is the ratio between the target product value and the preset cooling capacity corresponding to the heat pump unit. The target product value is the product of the preset cooling capacity corresponding to the evaporative chiller and the first preset load rate.

[0153] When the second comparison result indicates that the second actual load rate is greater than the second preset load rate, the evaporative chiller and the water pump assembly are controlled to operate, and the heat pump unit is controlled to stop operating.

[0154] After the evaporative chiller and the water pump assembly are operational, the process returns to the step of determining the first actual load rate of the operational evaporative chiller if the air source system still provides insufficient cooling, so that the air source system provides sufficient cooling.

[0155] In this embodiment, the air source system further includes a heat recovery unit and a water tank, wherein the heat recovery unit is connected to the water tank and the water pump assembly.

[0156] In this embodiment, the acquisition module 10 is further configured to:

[0157] Obtain the first actual water temperature of the water tank.

[0158] In this embodiment, the control module 20 is further configured to:

[0159] When it is determined that the hot water in the air source system is insufficient based on the first actual water temperature, the heat recovery unit and the water pump assembly are controlled to operate.

[0160] In this embodiment, the acquisition module 10 is further configured to:

[0161] After the heat recovery unit and the water pump assembly are in operation, the actual cooling temperature of the air source system is obtained.

[0162] In this embodiment, the water pump assembly includes a first water pump and a second water pump, wherein the first water pump is connected to the evaporative chiller and the second water pump is connected to the heat pump unit.

[0163] In this embodiment, the control module 20 is further configured to:

[0164] Control the operation of the first water pump in the evaporative chiller unit and the water pump assembly;

[0165] Based on the first actual load rate, the second water pump in the heat pump unit and the water pump assembly is controlled to ensure that the air source system provides sufficient cooling.

[0166] In this embodiment, there are multiple heat pump units, and the water pump assembly includes a second water pump connected to each of the heat pump units.

[0167] In this embodiment, the acquisition module 10 is further configured to:

[0168] When the air source system is in the heating season, the actual heating temperature of the air source system is obtained.

[0169] In this embodiment, the control module 20 is further configured to:

[0170] When it is determined that the air source system is not heating sufficiently based on the actual heating temperature, the heat pump unit and the second water pump connected to the heat pump unit are controlled to operate in sequence so that the air source system can provide sufficient heating.

[0171] In this embodiment, the air source system further includes a heat recovery unit and a water tank, and the water pump assembly further includes a third water pump. The heat recovery unit is connected to the water tank and the third water pump respectively.

[0172] In this embodiment, the acquisition module 10 is further configured to:

[0173] When the air source system is in the heating season, the second actual water temperature of the water tank is obtained.

[0174] In this embodiment, the control module 20 is further configured to:

[0175] When it is determined that the hot water in the air source system is insufficient based on the second actual water temperature, the heat recovery unit and the third water pump are controlled to operate so that the hot water in the air source system is sufficient.

[0176] In this embodiment, there are multiple evaporative chillers and multiple heat pump units.

[0177] In this embodiment, the control module 20 is further configured to:

[0178] After obtaining the actual cooling temperature of the air source system, if it is determined that the air source system is not cooling sufficiently based on the actual cooling temperature, the water pump assembly is controlled to work and each of the evaporative chiller units is controlled to work in sequence.

[0179] When all the evaporative chillers are operating at a preset frequency and the air source system is still not cooling enough, the water pump assembly is controlled to operate and each of the heat pump units is controlled in turn to ensure that the air source system is cooling sufficiently. The preset frequency is used to characterize the maximum frequency at which the evaporative chillers are allowed to operate.

[0180] In this embodiment, the control module 20 is further configured to:

[0181] After obtaining the actual cooling temperature of the air source system, if it is determined that the air source system is overcooled based on the actual cooling temperature, and if there are at least two working evaporative chillers and at least two working heat pump units in the air source system, the water pump assembly is controlled to work and the working heat pump units are controlled to stop working in sequence.

[0182] After controlling all the operating heat pump units to stop working, the water pump assembly is controlled to work and each of the operating evaporative chiller units is controlled to stop working in sequence, so that the air source system can provide sufficient cooling.

[0183] This application provides a control device for an air source system, which includes a heat pump unit and an evaporative chiller unit. Since the evaporative chiller unit has a higher energy efficiency than the heat pump unit, when the air source system is not cooling sufficiently, the evaporative chiller unit is prioritized for operation. After the evaporative chiller unit starts operating, the first actual load rate of the evaporative chiller unit is determined. If the energy efficiency of the evaporative chiller unit is determined to be poor based on the first actual load rate, the heat pump unit is switched to operate. This ensures that the air source system always operates with high energy efficiency during cooling, thereby improving the cooling energy efficiency of the air source system during the cooling season.

[0184] Figure 8 This is a schematic diagram of another air source system provided in an embodiment of this application. Figure 8 The air source system 800 shown includes: at least one processor 801, a memory 802, at least one network interface 804, and other user interfaces 803. The various components in the air source system 800 are coupled together via a bus system 805. It is understood that the bus system 805 is used to implement communication between these components. In addition to a data bus, the bus system 805 also includes a power bus, a control bus, and a status signal bus. However, for clarity, ... Figure 8 The general labeled all buses as Bus System 805.

[0185] The user interface 803 may include a display, keyboard, or clicking device (e.g., mouse, trackball, touchpad, or touchscreen).

[0186] It is understood that the memory 802 in the embodiments of the present invention can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced Synchronous DRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 802 described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0187] In some implementations, memory 802 stores elements, executable units or data structures, or subsets thereof, or extended sets thereof: operating system 8021 and application programs 8022.

[0188] The operating system 8021 includes various system programs, such as the framework layer, core library layer, and driver layer, used to implement various basic business functions and handle hardware-based tasks. The application program 8022 includes various applications, such as a media player and a browser, used to implement various application functions. The program implementing the method of this embodiment can be included in the application program 8022.

[0189] In this embodiment of the invention, by calling the program or instructions stored in memory 802, specifically the program or instructions stored in application program 8022, processor 801 is used to execute the method steps provided in each method embodiment, such as: when the air source system is in the cooling season, obtaining the actual cooling temperature of the air source system; when it is determined that the air source system is not cooling sufficiently based on the actual cooling temperature, controlling the operation of the evaporative cooling unit and water pump assembly; after the evaporative cooling unit and water pump assembly are operating, if the air source system is still not cooling sufficiently, determining the first actual load rate of the operating evaporative cooling unit; and controlling the heat pump unit and water pump assembly according to the first actual load rate to ensure that the air source system is cooling sufficiently.

[0190] The methods disclosed in the above embodiments of the present invention can be applied to or implemented by processor 801. Processor 801 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the integrated logic circuit of the hardware in processor 801 or by instructions in the form of software. The processor 801 may be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of the present invention. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of the present invention can be directly embodied in the execution of a hardware decoding processor, or executed by a combination of hardware and software units in the decoding processor. The software units may be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. The storage medium is located in memory 802. Processor 801 reads the information in memory 802 and, in conjunction with its hardware, completes the steps of the above method.

[0191] It is understood that the embodiments described herein can be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, the processing unit can be implemented in one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers, microprocessors, other electronic units for performing the functions described herein, or combinations thereof.

[0192] For software implementation, the techniques described herein can be implemented by units that perform the functions described herein. The software code can be stored in memory and executed by a processor. The memory can be implemented in the processor or external to the processor.

[0193] The air source system provided in this embodiment can be as follows: Figure 8 The air source system shown can perform the following functions: Figures 2-4 and Figure 6 All steps of the control method for a medium-air source system, thereby achieving Figures 2-4 and Figure 6 For details on the technical effects of the control method for the air source system shown, please refer to [link / reference]. Figures 2-4 and Figure 6 The relevant descriptions are presented concisely and will not be elaborated upon here.

[0194] This invention also provides a storage medium (computer-readable storage medium). This storage medium stores one or more programs. The storage medium may include volatile memory, such as random access memory; the memory may also include non-volatile memory, such as read-only memory, flash memory, hard disk, or solid-state drive; the memory may also include combinations of the above types of memory.

[0195] When one or more programs in the storage medium can be executed by one or more processors to implement the control method of the air source system executed on the control device side of the air source system.

[0196] The processor is used to execute the control program of the air source system stored in the memory to implement the following steps of the air source system control method executed on the control device side of the air source system: when the air source system is in the cooling season, obtain the actual cooling temperature of the air source system; when it is determined that the air source system is not cooling sufficiently based on the actual cooling temperature, control the operation of the evaporative cooling unit and the water pump assembly; if the air source system is still not cooling sufficiently after the evaporative cooling unit and the water pump assembly are operating, determine the first actual load rate of the operating evaporative cooling unit; and control the heat pump unit and the water pump assembly according to the first actual load rate to ensure that the air source system is cooling sufficiently.

[0197] Those skilled in the art will further recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.

[0198] The steps of the methods or algorithms described in conjunction with the embodiments disclosed herein can be implemented in hardware, a software module executed by a processor, or a combination of both. The software module can be located in random access memory (RAM), main memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art.

[0199] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A control method for an air source system, characterized in that, The air source system includes a heat pump unit, an evaporative chiller unit, and a water pump assembly. The water pump assembly is connected to the heat pump unit and the evaporative chiller unit respectively. The method includes: When the air source system is in the cooling season, obtain the actual cooling temperature of the air source system; When it is determined that the air source system is not cooling sufficiently based on the actual cooling temperature, the evaporative chiller and the water pump assembly are controlled to operate. If the air source system still provides insufficient cooling after the evaporative chiller and the water pump assembly have been put into operation, the first actual load rate of the evaporative chiller that has been put into operation is determined. A first comparison result is determined between the first actual load rate and the first preset load rate corresponding to the evaporative chiller, wherein the first preset load rate is used to characterize the load rate corresponding to the lowest energy efficiency when the evaporative chiller is cooling; When the first comparison result is that the first actual load rate is less than or equal to the first preset load rate, the heat pump unit and the water pump assembly are controlled to work, and the evaporative chiller is controlled to stop working. After the heat pump unit and the water pump assembly are in operation, determine the second actual load rate of the heat pump unit that has been turned on; A second comparison result is determined between the second actual load rate and the second preset load rate corresponding to the heat pump unit. The second preset load rate is the ratio between the target product value and the preset cooling capacity corresponding to the heat pump unit. The target product value is the product of the preset cooling capacity corresponding to the evaporative chiller and the first preset load rate. When the second comparison result indicates that the second actual load rate is greater than the second preset load rate, the evaporative chiller and the water pump assembly are controlled to operate, and the heat pump unit is controlled to stop operating. After the evaporative chiller and the water pump assembly are operational, the process returns to the step of determining the first actual load rate of the operational evaporative chiller if the air source system still provides insufficient cooling, so that the air source system provides sufficient cooling.

2. The method according to claim 1, characterized in that, The air source system further includes: a heat recovery unit and a water tank, wherein the heat recovery unit is connected to the water tank and the water pump assembly; Before performing the step of obtaining the actual cooling temperature of the air source system, the method further includes: Obtain the first actual water temperature of the water tank; When it is determined that the hot water in the air source system is insufficient based on the first actual water temperature, the heat recovery unit and the water pump assembly are controlled to operate. After the heat recovery unit and the water pump assembly are in operation, the step of obtaining the actual cooling temperature of the air source system is performed.

3. The method according to claim 1, characterized in that, The water pump assembly includes a first water pump and a second water pump, wherein the first water pump is connected to the evaporative chiller unit and the second water pump is connected to the heat pump unit; The control of the evaporative chiller and the water pump assembly includes: Control the operation of the first water pump in the evaporative chiller unit and the water pump assembly; The step of controlling the heat pump unit and the water pump assembly according to the first actual load rate to ensure sufficient cooling of the air source system includes: Based on the first actual load rate, the second water pump in the heat pump unit and the water pump assembly is controlled to ensure that the air source system provides sufficient cooling.

4. The method according to claim 1, characterized in that, The heat pump units are multiple, and the water pump assembly includes a second water pump connected to each of the heat pump units; The method further includes: When the air source system is in the heating season, obtain the actual heating temperature of the air source system; When it is determined that the air source system is not heating sufficiently based on the actual heating temperature, the heat pump unit and the second water pump connected to the heat pump unit are controlled to operate in sequence so that the air source system can provide sufficient heating.

5. The method according to claim 4, characterized in that, The air source system also includes a heat recovery unit and a water tank, and the water pump assembly also includes a third water pump. The heat recovery unit is connected to the water tank and the third water pump respectively. The method further includes: When the air source system is in the heating season, the second actual water temperature of the water tank is obtained; When it is determined that the hot water in the air source system is insufficient based on the second actual water temperature, the heat recovery unit and the third water pump are controlled to operate so that the hot water in the air source system is sufficient.

6. The method according to claim 1, characterized in that, There are multiple evaporative chiller units and multiple heat pump units; After achieving the actual cooling temperature step of the air source system, the method further includes: When it is determined that the air source system is not cooling sufficiently based on the actual cooling temperature, the water pump assembly is controlled to operate and each of the evaporative chiller units is controlled to operate sequentially. When all the evaporative chillers are operating at a preset frequency and the air source system is still not cooling enough, the water pump assembly is controlled to operate and each of the heat pump units is controlled in turn to ensure that the air source system is cooling sufficiently. The preset frequency is used to characterize the maximum frequency at which the evaporative chillers are allowed to operate.

7. The method according to claim 6, characterized in that, After achieving the actual cooling temperature step of the air source system, the method further includes: When the air source system is determined to be overcooled based on the actual cooling temperature, if there are at least two working evaporative chillers and at least two working heat pump units in the air source system, the water pump assembly is controlled to work and the working heat pump units are controlled to stop working in sequence. After controlling all the operating heat pump units to stop working, the water pump assembly is controlled to work and each of the operating evaporative chiller units is controlled to stop working in sequence, so that the air source system can provide sufficient cooling.

8. A control device for an air source system, characterized in that, The air source system includes a heat pump unit, an evaporative chiller unit, and a water pump assembly. The water pump assembly is connected to both the heat pump unit and the evaporative chiller unit. The device includes: The acquisition module is used to acquire the actual cooling temperature of the air source system when the air source system is in the cooling season; The control module is used to control the operation of the evaporative chiller and the water pump assembly when it is determined that the air source system is not cooling sufficiently based on the actual cooling temperature. The determination module is used to determine the first actual load rate of the working evaporative chiller if the air source system still provides insufficient cooling after the evaporative chiller and the water pump assembly have started working. The control module is used to determine a first comparison result between the first actual load rate and the first preset load rate corresponding to the evaporative chiller, wherein the first preset load rate is used to characterize the load rate corresponding to the lowest energy efficiency when the evaporative chiller is cooling. When the first comparison result is that the first actual load rate is less than or equal to the first preset load rate, the heat pump unit and the water pump assembly are controlled to work, and the evaporative chiller is controlled to stop working. After the heat pump unit and the water pump assembly are in operation, determine the second actual load rate of the heat pump unit that has been turned on; A second comparison result is determined between the second actual load rate and the second preset load rate corresponding to the heat pump unit. The second preset load rate is the ratio between the target product value and the preset cooling capacity corresponding to the heat pump unit. The target product value is the product of the preset cooling capacity corresponding to the evaporative chiller and the first preset load rate. When the second comparison result indicates that the second actual load rate is greater than the second preset load rate, the evaporative chiller and the water pump assembly are controlled to operate, and the heat pump unit is controlled to stop operating. After the evaporative chiller and the water pump assembly are operational, the process returns to the step of determining the first actual load rate of the operational evaporative chiller if the air source system still provides insufficient cooling, so that the air source system provides sufficient cooling.

9. An air source system, characterized in that, include: The system comprises a heat pump unit, an evaporative chiller unit, a water pump assembly, a processor, and a memory. The water pump assembly is connected to the heat pump unit and the evaporative chiller unit, respectively. The processor is connected to the heat pump unit, the evaporative chiller unit, the water pump assembly, and the memory, respectively. The processor is used to execute the control program of the air source system stored in the memory to implement the control method of the air source system according to any one of claims 1 to 7.

10. A storage medium, characterized in that, The storage medium stores one or more programs, which can be executed by one or more processors to implement the control method of the air source system according to any one of claims 1 to 7.

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