Air conditioning system, system control method, system control device, and related products

Abstract

The application provides an air conditioning system, a system control method, a system control device and related products, relates to the technical field of waste heat treatment, and can improve the working reliability of a data machine room. The air conditioning system comprises: an air handling unit; a plate heat exchanger, which is connectable with the air handling unit; a refrigerator, which is connectable with the air handling unit; and a cooling tower. In the case that the outdoor wet-bulb temperature is less than a first preset threshold, the plate heat exchanger is connected with the air handling unit and the cooling tower; in the case that the outdoor wet-bulb temperature is greater than or equal to the first preset threshold and less than a second preset threshold, the plate heat exchanger is connected with the air handling unit and the cooling tower, and the refrigerator is connected with the air handling unit and the cooling tower; and in the case that the outdoor wet-bulb temperature is greater than or equal to the second preset threshold, the refrigerator is connected with the air handling unit and the cooling tower. The embodiments of the application are used in the process of waste heat treatment.

Description

Technical Field

[0001] This application relates to the field of waste heat treatment technology, and in particular to an air conditioning system, a system control method, a system control device, and related products. Background Technology

[0002] Typically, chillers can be installed on the air conditioning system of a data center. The chilled water in the chiller can be converted into water vapor by the heat in the data center and the heat can be transferred to other locations to cool the data center, thus ensuring that the temperature in the data center is suitable.

[0003] However, due to the possibility of low outdoor wet-bulb temperatures, the cooling efficiency of the data center via chillers may be poor, potentially causing the data center to stop working and resulting in low operational reliability. Summary of the Invention

[0004] This application provides an air conditioning system, a system control method, a system control device, and related products, which can improve the operational reliability of data centers.

[0005] To achieve the above objectives, this application adopts the following technical solution: In a first aspect, this application provides an air conditioning system comprising: an air handling unit connected to a data center; a plate heat exchanger connected to the air handling unit; a chiller connected to the air handling unit; and a cooling tower connected to both the plate heat exchanger and the chiller. Specifically, when the outdoor wet-bulb temperature is less than a first preset threshold, the plate heat exchanger is connected to the air handling unit and the cooling tower, so that the heat from the air handling unit is discharged to the outside through the cooling tower after passing through the plate heat exchanger; when the outdoor wet-bulb temperature is greater than or equal to the first preset threshold and less than a second preset threshold, the plate heat exchanger is connected to the air handling unit and the cooling tower, and the chiller is also connected to the air handling unit and the cooling tower, so that the heat from the air handling unit is discharged to the outside through the cooling tower after passing through the plate heat exchanger and the chiller; when the outdoor wet-bulb temperature is greater than or equal to the second preset threshold, the chiller is connected to the air handling unit and the cooling tower, so that the heat from the air handling unit is discharged to the outside through the cooling tower after passing through the chiller.

[0006] Based on the above technical solutions, the air conditioning system provided in this application embodiment is equipped with a plate heat exchanger and a chiller. When the outdoor wet-bulb temperature is different, the plate heat exchanger (and / or chiller) can be connected to the air handling unit and cooling tower to cool the data center. This can reduce the situation where the cooling efficiency of the data center is poor due to the low outdoor wet-bulb temperature. Therefore, the cooling efficiency of the data center can be improved, thereby reducing the occurrence of data center shutdowns and improving the operational reliability of the data center.

[0007] In a first possible implementation of the first aspect, the first end of the plate heat exchanger is connected to the first end of the air handling unit via a first valve and a first pump body, the second end of the plate heat exchanger is connected to the second end of the air handling unit via a second valve, the third end of the plate heat exchanger is connected to the first end of the cooling tower via a second pump body, and the fourth end of the plate heat exchanger is connected to the second end of the cooling tower via a third valve.

[0008] In a second possible implementation of the first aspect, the refrigeration unit includes: a first evaporator, the first end of which is connected to the first end of an air handling unit via a first pump body, and the second end of which is connected to the second end of the air handling unit via a fourth valve and a fifth valve; and a first condenser, the first end of which is connected to the first end of a cooling tower via a sixth valve and a second pump body, and the second end of which is connected to the second end of the cooling tower via a seventh valve and a third pump body.

[0009] In a third possible implementation of the first aspect, the aforementioned air conditioning system further includes a buried pipe heat exchanger that can be connected to a chiller. Wherein, when the buried pipe heat exchanger is connected to the chiller, the heat from the air handling unit is stored by the buried pipe heat exchanger after passing through the chiller.

[0010] In the fourth possible implementation of the first aspect, the first end of the aforementioned buried pipe heat exchanger is connected to the first end of the first condenser via an eighth valve, and the second end of the buried pipe heat exchanger is connected to the second end of the first condenser via a third pump body.

[0011] In a fifth possible implementation of the first aspect, the aforementioned air conditioning system further includes a heat pump unit connected to a buried pipe heat exchanger and also connected to a district heating network. The heat pump unit is used to supply heat to the district heating network using the heat stored in the buried pipe heat exchanger.

[0012] In a sixth possible implementation of the first aspect, the aforementioned heat pump unit includes: a second evaporator, the first end of which is connected to the third end of a buried pipe heat exchanger via a fourth pump body and a ninth valve, the first end of which is also connected to the fourth end of a plate heat exchanger via a fourth pump body and a tenth valve, the second end of which is also connected to the fourth end of the buried pipe heat exchanger, and the second end of which is also connected to the third end of the plate heat exchanger; and a second condenser, the first end of which is connected to the first end of a district heating network, and the second end of which is connected to the second end of a district heating network via a fifth pump body.

[0013] Secondly, this application provides a system control method, which includes: acquiring the outdoor wet-bulb temperature of an air conditioning system; when the outdoor wet-bulb temperature is less than a first preset threshold, controlling the first valve, the second valve, and the third valve of the air conditioning system to be in an open state, and controlling the first pump body and the second pump body of the air conditioning system to be in a working state, so that the heat of the air handling unit of the air conditioning system is discharged to the outside through the plate heat exchanger of the air conditioning system and then discharged to the outside by the cooling tower of the air conditioning system; when the outdoor wet-bulb temperature is greater than or equal to the first preset threshold and less than the second preset threshold, controlling the first valve, the second valve, the third valve, and the third pump body of the air conditioning system to be in a working state. The fourth, fifth, sixth, and seventh valves of the air conditioning system are in the open state, and the first, second, and third pumps of the air conditioning system are controlled to be in the working state. Thus, the heat from the air handling unit is discharged to the outside through the cooling tower after passing through the plate heat exchanger and the chiller of the air conditioning system. When the outdoor wet-bulb temperature is greater than or equal to the second preset threshold, the fourth, fifth, sixth, and seventh valves are controlled to be in the open state, and the first, second, and third pumps are controlled to be in the working state. Thus, the heat from the air handling unit is discharged to the outside through the cooling tower after passing through the chiller.

[0014] Based on the above technical solution, the system control method provided in this application embodiment can obtain the outdoor wet-bulb temperature of the air conditioning system and control different valves to be in the open state and different pumps to be in the working state when the outdoor wet-bulb temperature is different. This allows the plate heat exchanger (and / or chiller) to be connected to the air handling unit and cooling tower to cool the data center. This can reduce the situation where the cooling efficiency of the data center is poor due to the low outdoor wet-bulb temperature. Therefore, it can improve the cooling efficiency of the data center and reduce the number of times the data center stops working. In this way, the operational reliability of the data center can be improved.

[0015] In a first possible implementation of the first aspect, the method further includes: acquiring the outdoor temperature of the air conditioning system; when the outdoor temperature is greater than or equal to a fourth preset threshold and the outdoor wet-bulb temperature is greater than or equal to a second preset threshold, controlling the fourth valve, the fifth valve, and the eighth valve of the air conditioning system to be in an open state, and controlling the first pump body and the third pump body to be in a working state, so that the heat from the air handling unit is stored by the underground pipe heat exchanger of the air conditioning system after passing through the chiller; when the outdoor temperature is less than the fourth preset threshold, controlling the first valve, the second valve, the ninth valve, and the tenth valve of the air conditioning system to be in an open state, and controlling the fourth pump body and the fifth pump body of the air conditioning system to be in a working state, so that the heat pump unit of the air conditioning system uses the heat stored in the underground pipe heat exchanger to supply heat to the district heating network of the air conditioning system.

[0016] Thirdly, this application provides a system control device, which includes: a processor and a communication interface; the communication interface and the processor are coupled, and the processor is used to run computer programs or instructions to implement the system control method as described in the second aspect and any possible implementation of the second aspect.

[0017] Fourthly, this application provides a computer-readable storage medium storing instructions that, when executed on a terminal, cause the terminal to perform the system control method as described in the second aspect and any possible implementation thereof.

[0018] Fifthly, embodiments of this application provide a computer program product containing instructions that, when run on a system control device, cause the system control device to execute the system control method as described in the second aspect and any possible implementation thereof.

[0019] In a sixth aspect, embodiments of this application provide a chip including a processor and a communication interface, the communication interface being coupled to the processor, the processor being used to run computer programs or instructions to implement the system control method as described in the second aspect and any possible implementation of the second aspect.

[0020] Specifically, the chip provided in this application embodiment also includes a memory for storing computer programs or instructions. Attached Figure Description

[0021] Figure 1 This application provides a schematic diagram of the structure of an air conditioning system according to an embodiment of the present application. Figure 2 This is a schematic diagram of another air conditioning system provided in an embodiment of this application; Figure 3This is a schematic diagram of another air conditioning system provided in an embodiment of this application; Figure 4 A flowchart of a system control method provided in an embodiment of this application; Figure 5 This is a schematic diagram of the structure of a system control device provided in an embodiment of this application; Figure 6 This is a schematic diagram of the structure of another system control device provided in the embodiments of this application; Figure 7 This is a schematic diagram of the structure of a chip provided in an embodiment of this application. Detailed Implementation

[0022] The air conditioning system, system control method, system control device, and related products provided in the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0023] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0024] The terms "first" and "second," etc., used in the specification and drawings of this application are used to distinguish different objects or to distinguish different treatments of the same object, rather than to describe a specific order of objects.

[0025] Furthermore, the terms "comprising" and "having," and any variations thereof, used in the description of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include other steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.

[0026] It should be noted that in the embodiments of this application, the words "exemplary" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design schemes. Specifically, the use of the words "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0027] In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0028] Typically, chillers are installed in the air conditioning system of a data center. The chilled water in the chillers is converted into water vapor by the heat in the data center, and this heat is transferred to other locations to cool the data center, ensuring a suitable temperature. However, due to the possibility of low outdoor wet-bulb temperatures, the cooling efficiency of the chillers may be poor, potentially causing the data center to shut down and resulting in lower operational reliability.

[0029] To address the issue of low operational reliability in data centers in existing technologies, this application provides an air conditioning system, a system control method, a system control device, and related products.

[0030] The air conditioning system, system control method, system control device, and related products applied in the process of waste heat treatment are described in this application.

[0031] like Figure 1 The diagram shown is a structural schematic of an air conditioning system provided in an embodiment of this application. The air conditioning system includes: an air handling unit 2 connected to a data center 1; a plate heat exchanger 3 connected to the air handling unit 2; a chiller 4 connected to the air handling unit 2; and a cooling tower 6 connected to both the plate heat exchanger 3 and the chiller 4.

[0032] Optionally, in this embodiment of the application, the air handling unit 2 is used to regulate the air temperature in the data center 1.

[0033] Specifically, the air handling unit 2 can extract high-temperature gas from the data center 1 and introduce low-temperature gas into the data center 1 to reduce the air temperature inside the data center 1.

[0034] It should be noted that the description of the structure of the air handling unit 2 can be found in the specific descriptions in the relevant technologies, and will not be repeated here in the embodiments of this application.

[0035] Optionally, in this embodiment of the application, the heat exchange fluid (e.g., water) in the plate heat exchanger 3 can flow to the air handling unit 2 and exchange heat with the high-temperature gas extracted by the air handling unit 2, so that the temperature of the high-temperature gas is reduced and low-temperature gas is obtained.

[0036] Optionally, in this embodiment, the plate heat exchanger 3 can be connected to the air handling unit 2 via a valve.

[0037] Optionally, in the embodiments of this application, such as Figure 2As shown, the first end of the plate heat exchanger 3 is connected to the first end of the air handling unit 2 through the first valve V3 and the first pump body P1. The second end of the plate heat exchanger 3 is connected to the second end of the air handling unit 2 through the second valve V1. The third end of the plate heat exchanger 3 is connected to the first end of the cooling tower 6 through the second pump body P5. The fourth end of the plate heat exchanger 3 is connected to the second end of the cooling tower 6 through the third valve V6.

[0038] Specifically, the first pump body P1 mentioned above can be a water pump, and the second pump body P5 mentioned above can be a water pump.

[0039] Optionally, in the embodiments of this application, such as Figure 2 As shown, the above-mentioned refrigeration unit 4 includes: a first evaporator 41, the first end of which is connected to the first end of the air handling unit 2 via a first pump body P1, and the second end of which is connected to the second end of the air handling unit 2 via a fourth valve V2 and a fifth valve V4; a first condenser 42, the first end of which is connected to the first end of the cooling tower 6 via a sixth valve V5 and a second pump body P5, and the second end of which is connected to the second end of the cooling tower 6 via a seventh valve V8 and a third pump body P2.

[0040] Specifically, the third pump body P2 mentioned above can be a water pump.

[0041] In this embodiment, when the outdoor wet-bulb temperature is less than a first preset threshold, the plate heat exchanger 3 is connected to the air handling unit 2 and the cooling tower 6, so that the heat from the air handling unit 2 is discharged to the outside through the cooling tower 6 after passing through the plate heat exchanger 3; when the outdoor wet-bulb temperature is greater than or equal to the first preset threshold and less than the second preset threshold, the plate heat exchanger 3 is connected to the air handling unit 2 and the cooling tower 6, and the chiller 4 is connected to the air handling unit 2 and the cooling tower 6, so that the heat from the air handling unit 2 is discharged to the outside through the cooling tower 6 after passing through the plate heat exchanger 3 and the chiller 4; when the outdoor wet-bulb temperature is greater than or equal to the second preset threshold, the chiller 4 is connected to the air handling unit 2 and the cooling tower 6, so that the heat from the air handling unit 2 is discharged to the outside through the cooling tower 6 after passing through the chiller 4.

[0042] If the outdoor ball temperature is less than the first preset threshold, it can be considered that the outdoor autumn temperature is low. Therefore, the air handling unit 2 can be heat exchanged through the plate heat exchanger 3.

[0043] Specifically, in combination Figure 2When the plate heat exchanger 3 exchanges heat with the air handling unit 2, driven by the first pump P1, the low-temperature heat exchange fluid can enter the first end of the air handling unit 2 from the first end of the plate heat exchanger 3 through the first valve V3 to exchange heat, thus obtaining a high-temperature heat exchange fluid. Driven by the first pump P1, this high-temperature heat exchange fluid can then enter the second end of the plate heat exchanger 3 from the second end of the air handling unit 2 through the second valve V1. Driven by the second pump P5, the high-temperature heat exchange fluid can enter the first end of the cooling tower 6 from the third end of the plate heat exchanger 3 for cooling, thus obtaining a low-temperature heat exchange fluid. Driven by the second pump P5, this low-temperature heat exchange fluid can then enter the fourth end of the plate heat exchanger 3 through the third valve V6.

[0044] If the outdoor wet-bulb temperature is greater than or equal to the second preset threshold, it can be considered that the outdoor wet-bulb temperature is high. Therefore, the air handling unit 2 can be heat exchanged by the chiller 4.

[0045] Specifically, in combination Figure 2 When the refrigeration unit 4 exchanges heat with the air handling unit 2, driven by the first pump P1, the low-temperature heat exchange fluid can enter the first end of the air handling unit 2 from the first end of the first evaporator 41 to exchange heat, resulting in high-temperature heat exchange gas. Driven by the first pump P1, this high-temperature heat exchange gas can enter the second end of the first evaporator 41 from the second end of the air handling unit 2 through the fourth valve V2 and the fifth valve V4. Driven by the second pump P5 and the third pump P2, the high-temperature heat exchange gas can enter the first end of the cooling tower 6 from the first end of the first condenser 42 through the sixth valve V5 for cooling, resulting in low-temperature heat exchange fluid. Driven by the second pump P5 and the third pump P2, this low-temperature heat exchange fluid can enter the second end of the first condenser 42 from the second end of the cooling tower 6 through the seventh valve V8.

[0046] If the outdoor wet-bulb temperature is greater than or equal to the first preset threshold and less than the second preset threshold, it can be considered that the outdoor wet-bulb temperature has increased. Therefore, the air handling unit 2 can be heat exchanged through the plate heat exchanger 3 and the chiller 4.

[0047] It should be noted that the description of heat exchange between the air handling unit 2 and the plate heat exchanger 3 and the chiller 4 can be found in the specific description in the above embodiments, and will not be repeated here in the embodiments of this application.

[0048] Based on the above technical solutions, the air conditioning system provided in this application embodiment is equipped with a plate heat exchanger and a chiller. When the outdoor wet-bulb temperature is different, the plate heat exchanger (and / or chiller) can be connected to the air handling unit and cooling tower to cool the data center. This can reduce the situation where the cooling efficiency of the data center is poor due to the low outdoor wet-bulb temperature. Therefore, the cooling efficiency of the data center can be improved, thereby reducing the occurrence of data center shutdowns and improving the operational reliability of the data center.

[0049] Of course, in order to avoid wasting heat after heat exchange, the air conditioning system can also be equipped with a heat storage device, which will be illustrated below.

[0050] Optionally, in the embodiments of this application, combined with Figure 2 ,like Figure 3 As shown, the above-mentioned air conditioning system also includes a buried pipe heat exchanger 5, which can be connected to the chiller 4. When the buried pipe heat exchanger 5 is connected to the chiller 4, the heat from the air handling unit 2 is stored in the buried pipe heat exchanger 5 after passing through the chiller 4.

[0051] It is understandable that heat can be stored in the underground soil through the buried pipe heat exchanger 5.

[0052] Optionally, in the embodiments of this application, combined with Figure 3 The first end of the buried pipe heat exchanger 5 is connected to the first end of the first condenser 42 through the eighth valve V7, and the second end of the buried pipe heat exchanger 5 is connected to the second end of the first condenser 42 through the third pump body P2.

[0053] Of course, in order to make full use of the stored heat, the air conditioning system can also be equipped with a heating device, as illustrated below.

[0054] Optionally, in the embodiments of this application, such as Figure 3 As shown, the aforementioned air conditioning system also includes a heat pump unit 7, which is connected to the buried pipe heat exchanger 5 and also connected to the district heating network 8. The heat pump unit 7 is used to supply heat to the district heating network 8 using the heat stored in the buried pipe heat exchanger 5.

[0055] Optionally, in the embodiments of this application, combined with Figure 3The aforementioned heat pump unit 7 includes: a second evaporator 71, the first end of which is connected to the third end of the buried pipe heat exchanger 5 via a fourth pump body P3 and a ninth valve V9, the first end of which is also connected to the fourth end of the plate heat exchanger 3 via a fourth pump body P3 and a tenth valve V10, the second end of which is also connected to the fourth end of the buried pipe heat exchanger 5, and the third end of the plate heat exchanger 3; and a second condenser 72, the first end of which is connected to the first end of the district heating network 8, and the second end of which is connected to the second end of the district heating network 8 via a fifth pump body P4.

[0056] Specifically, the fourth pump body P3 mentioned above can be a water pump, and the fifth pump body P4 mentioned above can be a water pump.

[0057] When the heat pump uses the heat stored in the buried pipe heat exchanger 5 to supply heat to the district heating network 8, under the drive of the fourth pump body P3, the low-temperature heat exchange fluid can enter the buried pipe heat exchanger 5 from the first end of the second evaporator 71 through the ninth valve V9 to exchange heat and obtain a high-temperature heat exchange gas. This high-temperature heat exchange gas enters the second end of the second evaporator 71 from the fourth end of the buried pipe heat exchanger 5. Furthermore, under the drive of the fourth pump body P3, the low-temperature heat exchange fluid can also enter the fourth end of the plate heat exchanger 3 from the first end of the second evaporator 71 through the tenth valve V10 to exchange heat and obtain a high-temperature heat exchange gas. This high-temperature heat exchange gas can enter the second end of the second evaporator 71 from the third end of the plate heat exchanger 3. Thus, driven by the fifth pump body P4, the high-temperature heat exchange gas can enter the second end of the district heating network 8 from the second end of the second condenser 72 to release heat and obtain a low-temperature heat exchange fluid. This low-temperature heat exchange fluid can enter the first end of the second condenser 72 from the first end of the district heating network 8.

[0058] like Figure 4 The diagram shown is a flowchart of a system control method provided in an embodiment of this application. The method includes the following steps: Step 101: Obtain the outdoor wet-bulb temperature of the air conditioning system.

[0059] Step 102: When the outdoor wet-bulb temperature is less than the first preset threshold, the air conditioning system controls the first valve, the second valve and the third valve of the air conditioning system to be in the open state, and controls the first pump body and the second pump body of the air conditioning system to be in the working state, so that the heat of the air handling unit of the air conditioning system is discharged to the outside through the plate heat exchanger of the air conditioning system and the cooling tower of the air conditioning system.

[0060] Optionally, in this embodiment of the application, if the outdoor temperature is greater than or equal to the fifth preset threshold and less than the sixth preset threshold, and the outdoor wet-bulb temperature is less than the first preset threshold, the air conditioning system controls the first valve, the second valve and the third valve of the air conditioning system to be in the open state, and controls the first pump body and the second pump body of the air conditioning system to be in the working state.

[0061] It is understandable that if the outdoor temperature is greater than or equal to the fifth preset threshold and less than the sixth preset threshold, the current season can be considered as a transitional season (such as spring or autumn). At this time, when the outdoor wet-bulb temperature is low, the air handling unit can exchange heat through a plate heat exchanger.

[0062] It should be noted that for the description of heat exchange of the air handling unit through the plate heat exchanger, please refer to the specific description in the above embodiments, and the embodiments of this application will not be repeated here.

[0063] Optionally, step 102 above can be replaced by step 102a below.

[0064] Step 102a: When the outdoor wet-bulb temperature is less than the first preset threshold, the air conditioning system controls the fourth valve, the fifth valve, the sixth valve and the seventh valve to be in the open state, and controls the first pump body, the second pump body and the third pump body to be in the working state, so that the heat of the air handling unit is discharged to the outside through the cooling tower after passing through the chiller.

[0065] Optionally, in this embodiment, if the outdoor temperature is greater than a sixth preset threshold (which may be the fourth preset threshold in the following embodiments), and the outdoor wet-bulb temperature is less than a first preset threshold, the air conditioning system controls the fourth valve, fifth valve, sixth valve, and seventh valve to be in the open state, and controls the first pump body, second pump body, and third pump body to be in the working state.

[0066] It is understandable that if the outdoor temperature is greater than the sixth preset threshold, the current season can be considered as summer. In this case, when the outdoor wet-bulb temperature is low, the air handling unit can be heated by the refrigeration unit.

[0067] Step 103: When the outdoor wet-bulb temperature is greater than or equal to the first preset threshold and less than the second preset threshold, the air conditioning system controls the first valve, the second valve, the third valve, the fourth valve, the fifth valve, the sixth valve, and the seventh valve to be in the open state, and controls the first pump body, the second pump body, and the third pump body to be in the working state, so that the heat of the air handling unit is discharged to the outside through the plate heat exchanger and the air conditioning system's chiller.

[0068] Optionally, in this embodiment of the application, when the outdoor temperature is greater than or equal to the fifth preset threshold and less than the sixth preset threshold, if the outdoor wet-bulb temperature is greater than or equal to the first preset threshold and less than the second preset threshold, the air conditioning system controls the first valve, the second valve, the third valve, the fourth valve, the fifth valve, the sixth valve, and the seventh valve of the air conditioning system to be in the open state, and controls the first pump body, the second pump body, and the third pump body of the air conditioning system to be in the working state, so that the heat of the air handling unit is discharged to the outside by the cooling tower after passing through the plate heat exchanger and the refrigeration unit of the air conditioning system.

[0069] It is understandable that if the outdoor temperature is greater than or equal to the fifth preset threshold and less than the sixth preset threshold, the current season can be considered as a transitional season (such as spring or autumn). At this time, when the outdoor wet-bulb temperature rises, heat exchange can be carried out on the air handling unit through the plate heat exchanger and the chiller.

[0070] It should be noted that for the description of heat exchange between the air handling unit and the plate heat exchanger and the chiller, please refer to the specific description in the above embodiments, and the embodiments of this application will not be repeated here.

[0071] Step 104: When the outdoor wet-bulb temperature is greater than or equal to the second preset threshold, the air conditioning system controls the fourth, fifth, sixth and seventh valves to be in the open state, and controls the first, second and third pumps to be in the working state, so that the heat of the air handling unit is discharged to the outside through the cooling tower after passing through the chiller.

[0072] Optionally, in this embodiment of the application, if the outdoor temperature is greater than or equal to the fifth preset threshold and less than the sixth preset threshold, and the outdoor wet-bulb temperature is greater than or equal to the second preset threshold, the air conditioning system controls the fourth valve, the fifth valve, the sixth valve and the seventh valve to be in the open state, and controls the first pump body, the second pump body and the third pump body to be in the working state, so that the heat of the air handling unit is discharged to the outside by the cooling tower after passing through the chiller.

[0073] It is understandable that if the outdoor temperature is greater than or equal to the fifth preset threshold and less than the sixth preset threshold, the current season can be considered as a transitional season (such as spring or autumn). In this case, when the outdoor wet-bulb temperature is high, the air handling unit can be heat exchanged through the refrigeration unit.

[0074] Based on the above technical solution, the system control method provided in this application embodiment can obtain the outdoor wet-bulb temperature of the air conditioning system and control different valves to be in the open state and different pumps to be in the working state when the outdoor wet-bulb temperature is different. This allows the plate heat exchanger (and / or chiller) to be connected to the air handling unit and cooling tower to cool the data center. This can reduce the situation where the cooling efficiency of the data center is poor due to the low outdoor wet-bulb temperature. Therefore, it can improve the cooling efficiency of the data center and reduce the number of times the data center stops working. In this way, the operational reliability of the data center can be improved.

[0075] Optionally, in this embodiment of the application, after step 101 above, the system control method provided in this embodiment of the application may further include the following steps: Step 201: The air conditioning system obtains the outdoor temperature of the air conditioning system.

[0076] Step 202: When the outdoor temperature is greater than or equal to the fourth preset threshold and the outdoor wet-bulb temperature is greater than or equal to the second preset threshold, the air conditioning system controls the fourth valve, the fifth valve and the eighth valve of the air conditioning system to be in the open state, and controls the first pump body and the third pump body to be in the working state, so that the heat of the air handling unit is stored by the underground pipe heat exchanger of the air conditioning system after passing through the chiller.

[0077] It is understandable that if the outdoor temperature is greater than or equal to the fourth preset threshold, the current season can be considered as summer. In this case, when the outdoor wet-bulb temperature is high, the heat of the air handling unit can be stored through the buried pipe heat exchanger.

[0078] Step 203: When the outdoor temperature is less than the fourth preset threshold, the air conditioning system controls the first valve, the second valve, the ninth valve, and the tenth valve to be in the open state, and controls the fourth pump and the fifth pump to be in the working state. Thus, the heat pump unit of the air conditioning system uses the heat stored in the buried pipe heat exchanger to supply heat to the district heating network of the air conditioning system.

[0079] It is understandable that if the outdoor temperature is less than the fourth preset threshold, the current season can be considered as winter. At this time, the air conditioning system can use the heat from the plate heat exchanger to heat the heat stored in the buried pipe heat exchanger, and then transport the heated heat to the district heating network for heating.

[0080] In this embodiment of the application, since the heat in the data center is mostly low, the heat stored in the buried pipe heat exchanger is also low. Therefore, when supplying heat to the district heating network, the heat stored in the buried pipe heat exchanger can be heated by the heat from the plate heat exchanger, without the need to use other heat sources, thus saving energy.

[0081] This application embodiment can divide the system control device into functional modules or functional units according to the above method examples. For example, each function can be divided into a separate functional module or functional unit, or two or more functions can be integrated into one processing module. The integrated module can be implemented in hardware or in software functional modules or functional units. The module or unit division in this application embodiment is illustrative and only represents one logical functional division; other division methods may be used in actual implementation.

[0082] like Figure 5 The diagram shown is a structural schematic of a system control device provided in an embodiment of this application. The device includes: Processing unit 201 is used to acquire the outdoor wet-bulb temperature of the air conditioning system; when the outdoor wet-bulb temperature is less than a first preset threshold, it controls the first, second, and third valves of the air conditioning system to be open, and controls the first and second pumps of the air conditioning system to be in working state, so that the heat from the air handling unit of the air conditioning system is discharged to the outside through the plate heat exchanger of the air conditioning system and then through the cooling tower of the air conditioning system; when the outdoor wet-bulb temperature is greater than or equal to the first preset threshold and less than the second preset threshold, it controls the first, second, third, fourth, fifth, sixth, and seventh valves of the air conditioning system to be open, and controls the first, second, and third pumps of the air conditioning system to be in working state, so that the heat from the air handling unit is discharged to the outside through the plate heat exchanger and the chiller of the air conditioning system and then through the cooling tower; when the outdoor wet-bulb temperature is greater than or equal to the second preset threshold, it controls the fourth, fifth, sixth, and seventh valves to be open, and controls the first, second, and third pumps to be in working state, so that the heat from the air handling unit is discharged to the outside through the chiller and then through the cooling tower.

[0083] When implemented in hardware, the communication unit 202 in this embodiment can be integrated onto the communication interface, and the processing unit 201 can be integrated onto the processor. Specific implementation methods are as follows: Figure 6 As shown.

[0084] Figure 6A schematic diagram of another possible structure of the system control device involved in the above embodiments is shown. The system control device includes a processor 302 and a communication interface 303. The processor 302 is used to control and manage the actions of the system control device, for example, executing the steps performed by the processing unit 201, and / or performing other processes of the technology described herein. The communication interface 303 is used to support communication between the system control device and other network entities, for example, executing the steps performed by the communication unit 202. The system control device may also include a memory 301 and a bus 304, the memory 301 being used to store the program code and data of the system control device.

[0085] The memory 301 may be a memory in a system control device, and the memory 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 a combination of the above types of memory.

[0086] The processor 302 described above can implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. The processor can be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. The processor can also be a combination that implements computational functions, such as including one or more microprocessor combinations, a combination of a DSP and a microprocessor, etc.

[0087] Bus 304 can be an Extended Industry Standard Architecture (EISA) bus, etc. Bus 304 can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 6 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0088] Figure 7 This is a schematic diagram of the structure of chip 170 provided in an embodiment of this application. Chip 170 includes one or more (including two) processors 1710 and communication interfaces 1730.

[0089] Optionally, the chip 170 also includes a memory 1740, which may include read-only memory and random access memory, and provides operation instructions and data to the processor 1710. A portion of the memory 1740 may also include non-volatile random access memory (NVRAM).

[0090] In some implementations, memory 1740 stores elements such as execution modules or data structures, or subsets thereof, or extended sets thereof.

[0091] In this embodiment of the application, the corresponding operation is executed by calling the operation instructions stored in the memory 1740 (which may be stored in the operating system).

[0092] The processor 1710 described above can implement or execute various exemplary logic blocks, units, and circuits described in conjunction with the disclosure of this application. The processor can be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logic blocks, units, and circuits described in conjunction with the disclosure of this application. The processor can also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc.

[0093] The memory 1740 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.

[0094] The Bus 1720 can be an Extended Industry Standard Architecture (EISA) bus, etc. The Bus 1720 can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 7 The symbol is represented by only one line, but this does not mean that there is only one bus or one type of bus.

[0095] Through the above description of the embodiments, those skilled in the art will clearly understand that, for the sake of convenience and brevity, only the division of the above functional modules is used as an example. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device, and unit described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0096] This application provides a computer program product containing instructions that, when run on a computer, cause the computer to execute the system control method described in the above method embodiments.

[0097] This application also provides a computer-readable storage medium storing instructions that, when executed on a computer, cause the computer to perform the system control method in the method flow shown in the above method embodiments.

[0098] The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of computer-readable storage media (a non-exhaustive list) include: an electrical connection having one or more wires; a portable computer disk drive; a hard disk drive; a random access memory (RAM); a read-only memory (ROM); an erasable programmable read-only memory (EPROM); a register; a hard disk drive; an optical fiber; a portable compact disc read-only memory (CD-ROM); an optical storage device; a magnetic storage device; or any suitable combination thereof; or any other form of computer-readable storage medium known in the art. An exemplary storage medium is coupled to a processor, enabling the processor to read information from and write information to the storage medium. Of course, the storage medium may also be a component of the processor. The processor and the storage medium may reside in an application-specific integrated circuit (ASIC). In the embodiments of this application, the computer-readable storage medium can be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.

[0099] Embodiments of the present invention provide a computer program product containing instructions that, when executed on a computer, cause the computer to perform actions such as... Figure 4 The system control method described herein.

[0100] Since the system control device, computer-readable storage medium, and computer program product in the embodiments of the present invention can be applied to the above method, the technical effects obtained can also be referred to the above method embodiments. The embodiments of the present invention will not be repeated here.

[0101] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0102] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0103] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0104] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An air conditioning system, characterized in that, The air conditioning system includes: An air handling unit, which is connected to the data center; A plate heat exchanger, which can be connected to the air handling unit; A refrigeration unit, which can be connected to the air handling unit; A cooling tower, which can be connected to the plate heat exchanger and the chiller; Where the outdoor wet-bulb temperature is less than a first preset threshold, the plate heat exchanger is connected to the air handling unit and the cooling tower, so that the heat of the air handling unit is discharged to the outside through the cooling tower after passing through the plate heat exchanger. When the outdoor wet-bulb temperature is greater than or equal to the first preset threshold and less than the second preset threshold, the plate heat exchanger is connected to the air handling unit and the cooling tower, and the refrigerator is connected to the air handling unit and the cooling tower, so that the heat of the air handling unit is discharged to the outside by the cooling tower after passing through the plate heat exchanger and the refrigerator. When the outdoor wet-bulb temperature is greater than or equal to the second preset threshold, the chiller is connected to the air handling unit and the cooling tower, so that the heat of the air handling unit is discharged to the outside through the cooling tower after passing through the chiller.

2. The air conditioning system according to claim 1, characterized in that, The first end of the plate heat exchanger is connected to the first end of the air handling unit through a first valve and a first pump body. The second end of the plate heat exchanger is connected to the second end of the air handling unit through a second valve. The third end of the plate heat exchanger is connected to the first end of the cooling tower through a second pump body. The fourth end of the plate heat exchanger is connected to the second end of the cooling tower through a third valve.

3. The air conditioning system according to claim 2, characterized in that, The refrigeration unit includes: A first evaporator, the first end of which is connected to the first end of the air handling unit via a first pump body, and the second end of which is connected to the second end of the air handling unit via a fourth valve and a fifth valve; A first condenser, the first end of which is connected to the first end of the cooling tower via a sixth valve and a second pump body, and the second end of which is connected to the second end of the cooling tower via a seventh valve and a third pump body.

4. The air conditioning system according to claim 3, characterized in that, The air conditioning system also includes: A buried pipe heat exchanger, which can be connected to the refrigeration unit; In the case where the underground pipe heat exchanger is connected to the chiller, the heat from the air handling unit is stored by the underground pipe heat exchanger after passing through the chiller.

5. The air conditioning system according to claim 4, characterized in that, The first end of the buried pipe heat exchanger is connected to the first end of the first condenser through the eighth valve, and the second end of the buried pipe heat exchanger is connected to the second end of the first condenser through the third pump body.

6. The air conditioning system according to claim 4, characterized in that, The air conditioning system also includes: A heat pump unit, wherein the heat pump unit is connected to the buried pipe heat exchanger, and the heat pump unit is also connected to the district heating network; The heat pump unit is used to supply heat to the district heating network using the heat stored in the buried pipe heat exchanger.

7. The air conditioning system according to claim 6, characterized in that, The heat pump unit includes: The second evaporator has its first end connected to the third end of the buried pipe heat exchanger via the fourth pump body and the ninth valve. The first end of the second evaporator is also connected to the fourth end of the plate heat exchanger via the fourth pump body and the tenth valve. The second end of the second evaporator is also connected to the fourth end of the buried pipe heat exchanger. The second end of the second evaporator is also connected to the third end of the plate heat exchanger. The second condenser has its first end connected to the first end of the district heating network, and its second end connected to the second end of the district heating network via the fifth pump body.

8. A system control method, applied to the air conditioning system as described in claim 7, characterized in that, The method includes: Obtain the outdoor wet-bulb temperature of the air conditioning system; When the outdoor wet-bulb temperature is less than a first preset threshold, the first valve, the second valve, and the third valve of the air conditioning system are controlled to be in the open state, and the first pump body and the second pump body of the air conditioning system are controlled to be in the working state, so that the heat of the air handling unit of the air conditioning system is discharged to the outside by the cooling tower of the air conditioning system after passing through the plate heat exchanger of the air conditioning system. When the outdoor wet-bulb temperature is greater than or equal to the first preset threshold and less than the second preset threshold, the first valve, the second valve, the third valve, the fourth valve of the air conditioning system, the fifth valve of the air conditioning system, the sixth valve of the air conditioning system, and the seventh valve of the air conditioning system are controlled to be in the open state, and the first pump body, the second pump body, and the third pump body of the air conditioning system are controlled to be in the working state, so that the heat of the air handling unit is discharged to the outside by the cooling tower after passing through the plate heat exchanger and the refrigeration unit of the air conditioning system; When the outdoor wet-bulb temperature is greater than or equal to the second preset threshold, the fourth valve, the fifth valve, the sixth valve, and the seventh valve are controlled to be in the open state, and the first pump body, the second pump body, and the third pump body are controlled to be in the working state, so that the heat of the air handling unit is discharged to the outside by the cooling tower after passing through the refrigeration unit.

9. The method according to claim 8, characterized in that, The method further includes: Obtain the outdoor temperature of the air conditioning system; When the outdoor temperature is greater than or equal to the fourth preset threshold and the outdoor wet-bulb temperature is greater than or equal to the second preset threshold, the fourth valve, the fifth valve and the eighth valve of the air conditioning system are controlled to be in the open state, and the first pump body and the third pump body are controlled to be in the working state, so that the heat of the air handling unit is stored by the underground pipe heat exchanger of the air conditioning system after passing through the refrigeration unit. When the outdoor temperature is less than the fourth preset threshold, the first valve, the second valve, the ninth valve of the air conditioning system, and the tenth valve of the air conditioning system are controlled to be in the open state, and the fourth pump body and the fifth pump body of the air conditioning system are controlled to be in the working state, so that the heat pump unit of the air conditioning system uses the heat stored in the buried pipe heat exchanger to supply heat to the district heating network of the air conditioning system.

10. A system control device, characterized in that, include: A processor and a communication interface; the communication interface is coupled to the processor, the processor being used to run computer programs or instructions to implement the system control method as described in claim 8 or 9.

11. A computer-readable storage medium storing instructions, characterized in that, When the computer executes the instruction, the computer performs the system control method as described in claim 8 or 9.

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