A control method, electronic equipment, and computer-readable medium for a liquid-cooled unit.

Abstract

This application discloses a control method, electronic equipment, and computer-readable medium for a liquid cooling unit. The liquid cooling unit also includes a connecting pipeline linking a first liquid cooling cabinet and a second liquid cooling cabinet. The lengths of the inlet and outlet pipelines corresponding to the first and second liquid cooling cabinets are matched. The system periodically detects the ambient temperature, the outlet temperature of the first and second liquid cooling cabinets, the average outlet temperature between the first and second liquid cooling cabinets, and the average inlet-outlet temperature difference, controlling the operating status of the liquid pump in the main pipeline. It also detects the liquid level in the first and second liquid cooling cabinets, and the liquid level difference between them, controlling the operating status of the communicating vessels in the connecting pipeline and the operating status of the inlet valves in each inlet pipeline. This improves control efficiency, thereby increasing the overall cooling efficiency of the liquid cooling unit.

Description

Technical Field

[0001] This application relates to the field of immersion liquid cooling technology, and more specifically, to a control method, electronic equipment, and computer-readable medium for a liquid cooling unit. Background Technology

[0002] As computing power advances with technological advancements, the performance requirements for these devices also increase. This leads to a gradual increase in the heat generation and heat flux density of electronic components, inevitably resulting in a significant increase in the wear and tear on computing equipment caused by this heat. Traditional air-cooling technology is no longer sufficient to meet the heat dissipation needs of computing devices. Immersion liquid cooling technology offers superior heat dissipation capabilities and lower energy consumption, effectively improving the computing efficiency and lifespan of computing equipment.

[0003] The computing power requirements vary across industries. In some scenarios, multiple liquid cooling units need to operate simultaneously, and liquid level imbalances may occur between these units. The current solution is to use a larger diameter supply and return main to reduce the static pressure in the supply and return pipelines and adjust the valves according to a single-point threshold to balance the static pressure in the pipelines. However, this solution is costly and not very effective. Summary of the Invention

[0004] This application aims to address one of the technical problems in related technologies to a certain extent. To this end, this application provides a control method, electronic equipment, and computer-readable medium for a liquid-cooled unit.

[0005] As a first aspect of this application, a control method for a liquid-cooled unit is provided. The liquid-cooled unit includes a first liquid-cooled cabinet, a second liquid-cooled cabinet, a liquid supply ring network pipeline, a liquid return ring network pipeline, a main pipeline connecting the liquid supply ring network pipeline and the liquid return ring network pipeline, a liquid inlet pipeline connecting the liquid-cooled cabinet and the liquid supply ring network pipeline, and a liquid outlet pipeline connecting the liquid-cooled cabinet and the liquid return ring network pipeline. The liquid-cooled unit further includes a connecting pipeline connecting the first liquid-cooled cabinet and the second liquid-cooled cabinet. The lengths of the liquid inlet and liquid outlet pipelines corresponding to the first liquid-cooled cabinet and the liquid inlet and liquid outlet pipelines corresponding to the second liquid-cooled cabinet are matched. The method is executed periodically, and the method includes:

[0006] The ambient temperature, the liquid outlet temperature of the first liquid cooling cabinet, the liquid outlet temperature of the second liquid cooling cabinet, and the average value of the liquid outlet temperature and the average value of the inlet and outlet temperature difference between the first liquid cooling cabinet and the second liquid cooling cabinet are detected.

[0007] The operating status of the liquid pump in the main pipeline is controlled based on the ambient temperature, the liquid outlet temperature of the first liquid cooling cabinet, the liquid outlet temperature of the second liquid cooling cabinet, the average value of the liquid outlet temperature, and the average value of the inlet and outlet liquid temperature difference.

[0008] The liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet, and the liquid level difference between the liquid levels of the first liquid cooling cabinet and the second liquid cooling cabinet are detected.

[0009] Based on the liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet, and the liquid level difference, the operating status of the communicating vessel in the connecting pipeline and the operating status of the inlet valve in each of the liquid inlet pipelines are controlled.

[0010] Optionally, controlling the operating state of the communicating vessel in the connecting pipeline and the operating state of the inlet valve in each of the liquid inlet pipelines based on the liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet, and the liquid level difference includes:

[0011] When the liquid level difference is greater than or equal to the first preset liquid level threshold and less than or equal to the second preset liquid level threshold, the liquid level measurement error and liquid level balance coefficient are determined based on the liquid level of the first liquid cooling cabinet and the liquid level of the second liquid cooling cabinet.

[0012] When the liquid level balance coefficient is less than a preset balance threshold, the connection amplitude of the communicating vessel is controlled to a preset amplitude;

[0013] When the liquid level balance coefficient is greater than or equal to the preset balance threshold, the connection amplitude of the communicating vessel is controlled to the preset amplitude, and the target valve step control amount is determined according to the liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet, and the liquid level difference.

[0014] Based on the target valve step control amount, the valve step of the inlet valve in each of the inlet pipelines is controlled.

[0015] Optionally, the liquid level measurement error and the liquid level balance coefficient can be determined by the following formula (1):

[0016]

[0017] The target valve step control quantity is determined by the following formula (2):

[0018] F1=Round(kp*(ΔL C 1-ΔL C 2)+ki*ΔL+kd*(ΔL C 1-2ΔL C 2+ΔL C 3))*θ*100%(2);

[0019] In formulas (1) and (2), ΔL C 1 represents the liquid level measurement error, f ′The liquid level balance coefficient is represented by L1, the liquid level of the first liquid cooling cabinet is represented by L2, the liquid level of the second liquid cooling cabinet is represented by F1, the target valve step control quantity is represented by Round(...), the rounding function is represented by kp, the proportional coefficient is 0.12, and ΔL C 2 represents the liquid level measurement error in the previous cycle, ki is the integral coefficient with a value of 0.15, ΔL represents the liquid level difference, kd is the differential coefficient with a value of 0.2, and ΔL C 3 represents the liquid level measurement error in the previous cycle, and θ is the correction coefficient with a value of 0.1.

[0020] Optionally, the step of controlling the operating state of the communicating vessel in the connecting pipeline and the operating state of the inlet valve in each of the liquid inlet pipelines based on the liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet, and the liquid level difference further includes:

[0021] When the liquid level difference is greater than the second preset liquid level threshold, the valve step of the regulating valve in the liquid inlet pipeline corresponding to the first liquid cooling cabinet is reduced by the first preset number of steps.

[0022] When the liquid level difference is less than the first preset liquid level threshold, the valve step of the regulating valve in the liquid inlet pipeline corresponding to the second liquid cooling cabinet is reduced by the first preset number of steps.

[0023] Optionally, the step of controlling the operating state of the liquid pump in the main pipeline based on the ambient temperature, the liquid outlet temperature of the first liquid cooling cabinet, the liquid outlet temperature of the second liquid cooling cabinet, the average value of the liquid outlet temperature, and the average value of the inlet and outlet liquid temperature difference includes:

[0024] When the average outlet temperature is less than a preset outlet temperature threshold and the average inlet-outlet temperature difference is less than a preset temperature difference threshold, the operating frequency of the liquid pump is controlled to remain unchanged.

[0025] The step of controlling the operating state of the communicating vessel in the connecting pipeline and the operating state of the inlet valve in each of the liquid inlet pipelines based on the liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet, and the liquid level difference further includes:

[0026] When the liquid level difference is greater than the second preset liquid level threshold, the valve step of the regulating valve in the liquid inlet pipeline corresponding to the second liquid cooling cabinet is increased by the second preset number of steps.

[0027] When the liquid level difference is less than the first preset liquid level threshold, the valve step of the regulating valve in the liquid inlet pipeline corresponding to the first liquid cooling cabinet is increased by a second preset number of steps.

[0028] Optionally, controlling the operating status of the liquid pump in the main pipeline based on the ambient temperature, the liquid outlet temperature of the first liquid cooling cabinet, the liquid outlet temperature of the second liquid cooling cabinet, the average value of the liquid outlet temperature, and the average value of the inlet and outlet liquid temperature difference includes:

[0029] When the average outlet temperature is greater than or equal to a preset outlet temperature threshold and the average inlet-outlet temperature difference is less than a preset temperature difference threshold, the target frequency control quantity is determined based on the preset temperature difference threshold, the ambient temperature, the outlet temperature of the first liquid cooling cabinet, the outlet temperature of the second liquid cooling cabinet, and a preset first algorithm.

[0030] When the average outlet temperature is greater than or equal to a preset outlet temperature threshold and the average inlet and outlet temperature difference is greater than or equal to a preset temperature difference threshold, the target frequency control quantity is determined based on the preset temperature difference threshold, the ambient temperature, the outlet temperature of the first liquid cooling cabinet, the outlet temperature of the second liquid cooling cabinet, and a preset second algorithm.

[0031] The operating frequency of the liquid pump is controlled according to the target frequency control value.

[0032] Optionally, the preset first algorithm includes the following formula (3):

[0033]

[0034] The preset second algorithm includes the following formula (4):

[0035]

[0036] In formulas (3) and (4), F2 represents the target frequency control quantity, Round(...) represents the rounding function, ΔT represents the preset temperature difference threshold, A ranges from (2℃ to 6℃), Th represents the ambient temperature, Tout1 represents the liquid outlet temperature of the first liquid cooling cabinet, Tout2 represents the liquid outlet temperature of the second liquid cooling cabinet, and T... set This indicates the preset calibration value.

[0037] Optionally, the step of controlling the operating state of the liquid pump in the main pipeline based on the ambient temperature, the liquid outlet temperature of the first liquid cooling cabinet, the liquid outlet temperature of the second liquid cooling cabinet, the average value of the liquid outlet temperature, and the average value of the inlet and outlet liquid temperature difference further includes:

[0038] When the average outlet temperature is less than a preset outlet temperature threshold and the average inlet and outlet temperature difference is greater than or equal to a preset temperature difference threshold, the valve step of the regulating valve in the liquid pump is controlled to its maximum value.

[0039] As a second aspect of this application, an electronic device is provided, wherein the electronic device comprises:

[0040] One or more processors;

[0041] A memory having stored one or more computer programs thereon, which, when executed by one or more processors, cause the one or more processors to implement the control method for the liquid-cooled unit provided in the first aspect of this application.

[0042] As a third aspect of this application, a computer-readable medium is provided having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the control method for the liquid-cooled unit provided in the first aspect of this application.

[0043] In the control method of the liquid-cooled unit provided in this application embodiment, based on a liquid-cooled unit including a first liquid-cooled cabinet, a second liquid-cooled cabinet, a liquid supply ring network pipeline, a liquid return ring network pipeline, a main pipeline connecting the liquid supply ring network pipeline and the liquid return ring network pipeline, an inlet pipeline connecting the liquid-cooled cabinet and the liquid supply ring network pipeline, and an outlet pipeline connecting the liquid-cooled cabinet and the liquid return ring network pipeline, a connecting pipeline connecting the first liquid-cooled cabinet and the second liquid-cooled cabinet is added. The lengths of the inlet and outlet pipelines corresponding to the first liquid-cooled cabinet and the inlet and outlet pipelines corresponding to the second liquid-cooled cabinet are matched. The ambient temperature, the outlet temperature of the first liquid-cooled cabinet, the outlet temperature of the second liquid-cooled cabinet, and the... The method controls the operation of the liquid pump in the main pipeline based on the average outlet liquid temperature and the average inlet-outlet temperature difference between the first and second liquid cooling cabinets, the ambient temperature, the outlet liquid temperature of the first and second liquid cooling cabinets, the average outlet liquid temperature, and the average inlet-outlet temperature difference. It also detects the liquid level in the first and second liquid cooling cabinets, and the liquid level difference between them. Based on these parameters, the method controls the operation of the communicating vessels in the connecting pipeline and the inlet valves in each inlet pipeline. This method can safely and accurately maintain the load and liquid level balance of the entire liquid cooling unit while saving on deployment costs, improving control efficiency and thus enhancing the overall cooling efficiency of the liquid cooling unit. Attached Figure Description

[0044] The following description, in conjunction with the accompanying drawings, further illustrates this application:

[0045] Figure 1 This is a flowchart of one embodiment of the control method for the liquid-cooled unit provided in this application;

[0046] Figure 2 This is a schematic diagram of one embodiment of the liquid cooling unit provided in this application.

[0047] Figure 3 This is a flowchart of another embodiment of the control method for the liquid-cooled unit provided in the embodiments of this application;

[0048] Figure 4 This is a flowchart of another embodiment of the control method for the liquid-cooled unit provided in the embodiments of this application;

[0049] Figure 5 This is a flowchart of another embodiment of the control method for the liquid-cooled unit provided in the embodiments of this application;

[0050] Figure 6 This is a flowchart of another embodiment of the control method for the liquid-cooled unit provided in the embodiments of this application;

[0051] Figure 7 This is a block diagram of one embodiment of the electronic device provided in this application.

[0052] Figure 8 This is a schematic diagram of a computer-readable medium provided in an embodiment of this application.

[0053] Explanation of reference numerals in the attached figures

[0054] 101: Processor; 102: Memory

[0055] 103: I / O Interface 104: Bus Detailed Implementation

[0056] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described are intended to explain this application and should not be construed as limiting it.

[0057] The terms "an embodiment," "example," or "example" used in this specification refer to a particular feature, structure, or characteristic described in connection with the embodiment itself that may be included in at least one embodiment disclosed in this application. The phrase "in an embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment.

[0058] In some scenarios, multiple liquid chiller units need to operate simultaneously, and liquid level imbalances may occur between these units. Current solutions are costly and less than ideal. Therefore, the inventors of this application propose that, while employing a one-to-two design and a ring network design for the liquid chiller units, a connecting device can be added between the two liquid chiller cabinets. By utilizing ambient temperature, the inlet and outlet liquid temperatures of each cabinet, and the liquid level, the load of the entire liquid chiller unit and the liquid level balance between the two cabinets can be analyzed. This allows for the safe and precise regulation of the operating status of the liquid pump, connecting device, and inlet valve using a PID (proportional-integral-derivative) controller.

[0059] As a first aspect of this application, a control method for a liquid-cooled unit is provided. The liquid-cooled unit includes a first liquid-cooled cabinet, a second liquid-cooled cabinet, a liquid supply ring network pipeline, a liquid return ring network pipeline, a main pipeline connecting the liquid supply ring network pipeline and the liquid return ring network pipeline, an inlet pipeline connecting the liquid-cooled cabinet and the liquid supply ring network pipeline, and an outlet pipeline connecting the liquid-cooled cabinet and the liquid return ring network pipeline. The liquid-cooled unit further includes a connecting pipeline connecting the first liquid-cooled cabinet and the second liquid-cooled cabinet. The lengths of the inlet and outlet pipelines corresponding to the first liquid-cooled cabinet and the second liquid-cooled cabinet are matched. The method is executed periodically. Figure 1 As shown, the method may include the following steps:

[0060] In step S110, the ambient temperature, the liquid outlet temperature of the first liquid cooling cabinet, the liquid outlet temperature of the second liquid cooling cabinet, and the average value of the liquid outlet temperature and the average value of the inlet and outlet temperature difference between the first liquid cooling cabinet and the second liquid cooling cabinet are detected.

[0061] In step S120, the operating status of the liquid pump in the main pipeline is controlled according to the ambient temperature, the liquid outlet temperature of the first liquid cooling cabinet, the liquid outlet temperature of the second liquid cooling cabinet, the average value of the liquid outlet temperature and the average value of the inlet and outlet liquid temperature difference.

[0062] In step S130, the liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet, and the liquid level difference between the liquid levels of the first liquid cooling cabinet and the second liquid cooling cabinet are detected.

[0063] In step S140, the operating status of the communicating vessel in the connecting pipeline and the operating status of the inlet valve in each of the liquid inlet pipelines are controlled according to the liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet and the liquid level difference.

[0064] like Figure 2The diagram shown illustrates one embodiment of the liquid-cooled unit provided in this application. The liquid-cooling cabinet in this unit can adopt a standard 42U design, with length, width, and height designed as M = 1800mm, N = 600mm, and L = 1400mm, respectively. The diameter of the main pipeline can be designed as... Where Qv represents volumetric flow rate, α represents flow coefficient, ε represents expansion coefficient, ΔP represents pressure difference, and ρ represents coolant density. Both the first and second liquid-cooled cabinets are connected to the supply loop network via inlet pipes and to the return loop network via outlet pipes. The inlet and outlet pipes of the first liquid-cooled cabinet are matched in length with those of the second liquid-cooled cabinet; that is, the lengths of the two inlet pipes and the two outlet pipes are matched. Thus, each of the two liquid-cooled cabinets forms a complete supply and return link with the loop network (including the supply loop network, return loop network, and main pipe), and the total length of these two supply and return links is equal.

[0065] In this application embodiment, no specific limitation is made on the pipe diameter design for different types of pipelines. Generally speaking, when each pipe diameter is set to one of DN32, DN40, DN50, and DN65, it can better balance cost saving and efficiency improvement.

[0066] In this embodiment of the application, there is no special limitation on how step S110 is specifically executed. For example, the ambient temperature and the liquid inlet and outlet temperatures of the two liquid cooling cabinets can be collected first. The average liquid outlet temperature between the two liquid cooling cabinets can be calculated based on the liquid outlet temperatures of the two liquid cooling cabinets. The liquid inlet and outlet temperature difference of each liquid cooling cabinet can be calculated based on the liquid inlet and outlet temperatures of each liquid cooling cabinet. Then, the average value of the liquid inlet and outlet temperature difference between the two liquid cooling cabinets can be calculated to obtain the average value of the liquid inlet and outlet temperature difference.

[0067] In this embodiment of the application, there are no special limitations on how step S130 is specifically executed. For example, the liquid levels of the two liquid cooling cabinets can be collected first, and then the liquid level difference can be calculated.

[0068] In the embodiments of this application, it can be understood that after step S140 is completed, in response to the arrival of the next cycle, step S110 will be executed to continue the control method of the liquid cooling unit provided in the embodiments of this application in the next cycle.

[0069] The inventors of this application propose that the load condition of the entire liquid chiller unit will affect the static pressure balance of the entire pipeline system, which will inevitably affect the liquid level balance between the two liquid chiller cabinets. The ambient temperature, the liquid outlet temperature of the first liquid chiller cabinet, the liquid outlet temperature of the second liquid chiller cabinet, the average value of the liquid outlet temperature, and the average value of the inlet and outlet liquid temperature difference can comprehensively and objectively reflect the load condition of the entire liquid chiller unit. Based on this, the operating status of the liquid pump in the main pipeline can be controlled to safely and accurately maintain the load balance of the entire liquid chiller unit.

[0070] The inventors of this application propose that, currently, when there are two liquid cooling cabinets in a liquid cooling unit, the liquid level imbalance between the two cabinets is due to the unequal total lengths of the two supply and return links formed by each cabinet and the ring network pipeline (including the supply ring network pipeline, return ring network pipeline, and main pipeline). That is, there is a near-end liquid cooling cabinet and a far-end liquid cooling cabinet. Due to the uneven friction and local resistance of the pipeline, the resistance loss of the return pipeline differs between the near-end and far-end liquid cooling cabinets. Because the liquid outlet velocity of the near-end liquid cooling cabinet is higher, the corresponding static pressure is lower, and under this static pressure imbalance, a liquid level imbalance ultimately occurs. To address this, by setting the lengths of the inlet and outlet pipelines corresponding to the first liquid cooling cabinet to match those of the inlet and outlet pipelines corresponding to the second liquid cooling cabinet, the near-end / far-end difference between the two liquid cooling cabinets can be eliminated, achieving static pressure balance in the entire pipeline system and helping to maintain liquid level balance between the two cabinets.

[0071] The inventors of this application also propose that the liquid level and liquid level difference between the two liquid cooling cabinets can comprehensively and objectively reflect the liquid level balance between the two liquid cooling cabinets, that is, the difference and dynamic development trend of the liquid level. Based on this, the operating status of the communicating vessel in the connecting pipeline and the operating status of the inlet valve in each inlet pipeline can be controlled, and the liquid level balance between the two liquid cooling cabinets can also be maintained safely and accurately.

[0072] In the control method of the liquid-cooled unit provided in this application embodiment, based on a liquid-cooled unit including a first liquid-cooled cabinet, a second liquid-cooled cabinet, a liquid supply ring network pipeline, a liquid return ring network pipeline, a main pipeline connecting the liquid supply ring network pipeline and the liquid return ring network pipeline, an inlet pipeline connecting the liquid-cooled cabinet and the liquid supply ring network pipeline, and an outlet pipeline connecting the liquid-cooled cabinet and the liquid return ring network pipeline, a connecting pipeline connecting the first liquid-cooled cabinet and the second liquid-cooled cabinet is added. The lengths of the inlet and outlet pipelines corresponding to the first liquid-cooled cabinet and the inlet and outlet pipelines corresponding to the second liquid-cooled cabinet are matched. The ambient temperature, the outlet temperature of the first liquid-cooled cabinet, the outlet temperature of the second liquid-cooled cabinet, and the... The method controls the operation of the liquid pump in the main pipeline based on the average outlet liquid temperature and the average inlet-outlet temperature difference between the first and second liquid cooling cabinets, the ambient temperature, the outlet liquid temperature of the first and second liquid cooling cabinets, the average outlet liquid temperature, and the average inlet-outlet temperature difference. It also detects the liquid level in the first and second liquid cooling cabinets, and the liquid level difference between them. Based on these parameters, the method controls the operation of the communicating vessels in the connecting pipeline and the inlet valves in each inlet pipeline. This method can safely and accurately maintain the load and liquid level balance of the entire liquid cooling unit while saving on deployment costs, improving control efficiency and thus enhancing the overall cooling efficiency of the liquid cooling unit.

[0073] As shown in Table 1 below, the inventors of this application also analyzed the relationship between the pipe diameter of the connecting pipe, the total flow rate in each pipe, and the liquid level difference between the two liquid cooling cabinets. It can be seen that using the connecting pipe effectively reduces the liquid level difference between the two liquid cooling cabinets. Furthermore, increasing the pipe diameter of the connecting pipe also effectively reduces the liquid level difference between the two liquid cooling cabinets. However, the liquid level difference between the two liquid cooling cabinets does not decrease infinitely with the increase of the connecting pipe diameter. This difference remains significant when the total flow rate of the liquid cooling unit is relatively small, such as 5m³ / h. 3 When the flow rate is / h, using connecting pipes with a diameter of DN32 or DN40 is actually sufficient. Therefore, as a preferred implementation, the diameter of the main pipeline can be set to DN40, the diameter of the inlet and outlet pipelines can be set to DN32, and the diameter of the supply loop network pipeline, return loop network pipeline, and connecting pipeline can be set to DN40.

[0074] Table 1

[0075]

[0076] In some embodiments, the step of controlling the operating state of the communicating vessels in the connecting pipeline and the operating state of the inlet valves in each of the liquid inlet pipelines based on the liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet, and the liquid level difference (i.e., the step involved in S140) is as follows: Figure 3 As shown, it may include the following steps:

[0077] In step S210, when the liquid level difference is greater than or equal to the first preset liquid level threshold and less than or equal to the second preset liquid level threshold, the liquid level measurement error and liquid level balance coefficient are determined based on the liquid level of the first liquid cooling cabinet and the liquid level of the second liquid cooling cabinet.

[0078] In step S220, if the liquid level balance coefficient is less than a preset balance threshold, the communication amplitude of the communicating vessel is controlled to a preset amplitude.

[0079] In step S230, when the liquid level balance coefficient is greater than or equal to a preset balance threshold, the communication amplitude of the communicating vessel is controlled to a preset amplitude, and the target valve step control amount is determined based on the liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet, and the liquid level difference.

[0080] In step S240, the valve steps of the inlet valves in each of the inlet pipelines are controlled according to the target valve step control amount.

[0081] Let the liquid levels of the first and second liquid-cooled cabinets be L1 and L2, respectively, and the liquid level difference be denoted as ΔL = L1 - L2. Let the first and second preset liquid level thresholds be denoted as -X and x, respectively. It can be understood that x is a positive number. In this embodiment, the value of x is not specifically limited. As a preferred implementation, the value of x can be in the range of (0, 2cm).

[0082] When -x ≤ ΔL = L1 - L2 ≤ X, it indicates that the liquid level difference between the two liquid-cooled cabinets is small and still within a safe range. At this point, steps S210-S240 are executed to further analyze the difference and dynamic trend of the liquid levels in the two liquid-cooled cabinets. Based on the difference and dynamic trend of the liquid levels in the two liquid-cooled cabinets, the connection range of the communicating vessel and the valve steps of the inlet valves in each inlet pipeline are controlled.

[0083] The liquid level balance coefficient is expressed as f. ′ Let the preset balance threshold be denoted as K, when f ′When K < K, it indicates that the liquid levels in the two liquid-cooled cabinets are trending towards dynamic equilibrium. At this time, the connection amplitude of the communicating vessel is controlled to a preset amplitude to maintain the dynamic equilibrium between the liquid levels in the two liquid-cooled cabinets. In this embodiment, the preset amplitude is not specifically limited; for example, the preset amplitude can be 45%, 50%, 55%, etc.

[0084] When f ′ When the value is ≥K, it indicates that the liquid level of the two liquid cooling cabinets is trending towards a discrete phase. At this time, it is necessary not only to control the connection amplitude of the communicating vessel to the preset amplitude, but also to synchronously control the valve steps of the liquid inlet valves in the liquid inlet pipes of the two liquid cooling cabinets, so as to drive the liquid level of the two liquid cooling cabinets towards a dynamic equilibrium.

[0085] In this embodiment of the application, there are no special limitations on how to determine the target valve step control quantity based on the liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet, and the liquid level difference. For example, the target valve step control quantity can be determined using the following formulas (a), (b), and (c):

[0086]

[0087]

[0088] Accordingly, in some embodiments, the liquid level measurement error and the liquid level balance coefficient are determined by the following formula (1):

[0089]

[0090] The target valve step control quantity is determined by the following formula (2):

[0091] F1=Round(kp*(ΔL C 1-ΔL C 2)+ki*ΔL+kd*(ΔL C 1-2ΔL C 2+ΔL C 3))*θ*100%(2);

[0092] In formulas (1) and (2), ΔL C 1 represents the liquid level measurement error, f′ represents the liquid level balance coefficient, L1 represents the liquid level of the first liquid cooling cabinet, L2 represents the liquid level of the second liquid cooling cabinet, F1 represents the target valve step control quantity, Round(...) represents the rounding function, kp is the proportional coefficient with a value of 0.12, ΔL C 2 represents the liquid level measurement error in the previous cycle, ki is the integral coefficient with a value of 0.15, ΔL represents the liquid level difference, kd is the differential coefficient with a value of 0.2, and ΔL C3 represents the liquid level measurement error in the previous cycle, and θ is the correction coefficient with a value of 0.1.

[0093] It is understood that the determined target valve step control quantity may be positive or negative. When it is positive, it controls the valve step of the inlet valve in each inlet pipeline to increase. When it is negative, it controls the valve step of the inlet valve in each inlet pipeline to decrease. The number of steps increased or decreased is the absolute value of the target valve step control quantity.

[0094] The above pertains to the case where the liquid level difference is greater than or equal to the first preset liquid level threshold and less than or equal to the second preset liquid level threshold, i.e., -X ≤ ΔL = L1 - L2 ≤ X. For the two extreme cases, ΔL > X and ΔL < -X, it indicates a significant difference in liquid level between the two liquid-cooled cabinets. In this case, it is necessary to consider how to most quickly drive the liquid levels of the two liquid-cooled cabinets to reach dynamic equilibrium. Correspondingly, in some embodiments, in the step of controlling the operating state of the communicating vessel in the connecting pipeline and the operating state of the inlet valve in each of the liquid inlet pipelines based on the liquid level of the first liquid-cooled cabinet, the liquid level of the second liquid-cooled cabinet, and the liquid level difference (i.e., the step involved in step S140), such as... Figure 4 As shown, it may include the following steps:

[0095] In step S250, when the liquid level difference is greater than the second preset liquid level threshold, the valve step of the regulating valve in the liquid inlet pipeline corresponding to the first liquid cooling cabinet is reduced by a first preset number of steps.

[0096] In step S260, when the liquid level difference is less than the first preset liquid level threshold, the valve step of the regulating valve in the liquid inlet pipeline corresponding to the second liquid cooling cabinet is reduced by the first preset number of steps.

[0097] ΔL = L1 - L2. When ΔL > X, it indicates that the liquid level in the first liquid-cooled cabinet is significantly higher than that in the second liquid-cooled cabinet. In this case, the valve step of the regulating valve in the inlet pipe corresponding to the first liquid-cooled cabinet needs to be reduced to slow down the liquid inlet rate of the first liquid-cooled cabinet. When ΔL < -X, it indicates that the liquid level in the second liquid-cooled cabinet is significantly higher than that in the first liquid-cooled cabinet. In this case, the valve step of the regulating valve in the inlet pipe corresponding to the second liquid-cooled cabinet needs to be reduced to slow down the liquid inlet rate of the second liquid-cooled cabinet.

[0098] The inventors of this application further propose that, for the two extreme cases of ΔL>X and ΔL<-X, the decision can be made based on the previous analysis of the load of the entire liquid cooling unit. It is also possible to consider increasing the valve step of the regulating valve in the liquid inlet pipeline corresponding to the liquid cooling cabinet with the lower liquid level, so as to accelerate the liquid inlet speed of the liquid cooling cabinet with the lower liquid level and make the liquid levels of the two liquid cooling cabinets tend to reach dynamic equilibrium more quickly.

[0099] Accordingly, in some embodiments, the step of controlling the operating state of the liquid pump in the main pipeline based on the ambient temperature, the liquid outlet temperature of the first liquid cooling cabinet, the liquid outlet temperature of the second liquid cooling cabinet, the average value of the liquid outlet temperature and the average value of the inlet and outlet liquid temperature difference (i.e., the step involved in step S120) may include the following step: when the average value of the liquid outlet temperature is less than a preset liquid outlet temperature threshold and the average value of the inlet and outlet liquid temperature difference is less than a preset temperature difference threshold, the operating frequency of the liquid pump is kept constant.

[0100] The step of controlling the operating state of the communicating vessel in the connecting pipeline and the operating state of the inlet valve in each of the liquid inlet pipelines based on the liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet, and the liquid level difference (i.e., the step involved in step S140) may include the following steps:

[0101] When the liquid level difference is greater than the second preset liquid level threshold, the valve step of the regulating valve in the liquid inlet pipeline corresponding to the second liquid cooling cabinet is increased by the second preset number of steps.

[0102] When the liquid level difference is less than the first preset liquid level threshold, the valve step of the regulating valve in the liquid inlet pipeline corresponding to the first liquid cooling cabinet is increased by a second preset number of steps.

[0103] The liquid outlet temperature of the first liquid cooling cabinet, the liquid outlet temperature of the second liquid cooling cabinet, the average liquid outlet temperature, and the average inlet-outlet temperature difference are represented as Tout1, Tout2, and Tout2, respectively. Let the preset outlet temperature threshold and preset temperature difference threshold be represented as T. x ΔT, when and When the load of the entire liquid chiller unit is normal, the operating frequency of the liquid pump can be kept constant. As described above, in the control method of the liquid chiller unit provided in this application embodiment, L1, L2, and ΔL = L1 - L2 will be further detected. When it is determined that ΔL > X or ΔL < -X, the valve step of the regulating valve in the liquid inlet pipeline corresponding to the liquid chiller cabinet with the lower liquid level can be increased to accelerate the liquid inlet speed of the liquid chiller cabinet with the lower liquid level, so that the liquid levels of the two liquid chiller cabinets tend to reach dynamic equilibrium more quickly.

[0104] That is, when it is determined and At this time, the operating frequency of the control pump remains constant, and L1, L2, and ΔL = L1 - L2 are then detected. If ΔL > X, the valve step of the regulating valve in the inlet pipeline corresponding to the first liquid cooling cabinet is reduced by a first preset number of steps to slow down the liquid inlet speed of the first liquid cooling cabinet. Furthermore, the valve step of the regulating valve in the inlet pipeline corresponding to the second liquid cooling cabinet is increased by a second preset number of steps to accelerate the liquid inlet speed of the second liquid cooling cabinet, allowing the liquid levels of the two liquid cooling cabinets to more quickly approach dynamic equilibrium. When ΔL < -X, the valve step of the regulating valve in the inlet pipeline corresponding to the second liquid cooling cabinet is reduced by a first preset number of steps to slow down the liquid inlet speed of the second liquid cooling cabinet. Furthermore, the valve step of the regulating valve in the inlet pipeline corresponding to the first liquid cooling cabinet is increased by a second preset number of steps to accelerate the liquid inlet speed of the first liquid cooling cabinet, allowing the liquid levels of the two liquid cooling cabinets to more quickly approach dynamic equilibrium.

[0105] It should be noted that, in the embodiments of this application, if it is determined during the analysis of the load of the entire liquid chiller unit that... and Furthermore, when analyzing the difference and dynamic trend of the liquid levels in the two liquid-cooled cabinets, it was determined that ΔL > X or ΔL < -X. Therefore, there are no specific limitations on the first and second preset steps, as long as the first preset step number is at least not less than the second preset step number. For example, the first and second preset steps can be set to 100 steps and 50 steps, respectively.

[0106] The above refers to situations where the average outlet temperature is less than the preset outlet temperature threshold and the average inlet-outlet temperature difference is less than the preset temperature difference threshold. and In the opposite case, it indicates that the load of the entire liquid chiller unit is not good, and the operation of the liquid pump needs to be controlled in order to drive the entire liquid chiller unit to achieve load balance.

[0107] Accordingly, in some embodiments, the step of controlling the operating state of the liquid pump in the main pipeline (i.e., the step involved in step S120) based on the ambient temperature, the liquid outlet temperature of the first liquid cooling cabinet, the liquid outlet temperature of the second liquid cooling cabinet, the average value of the liquid outlet temperature, and the average value of the inlet and outlet liquid temperature difference is as follows: Figure 5 As shown, it may include the following steps:

[0108] In step S310, when the average outlet temperature is greater than or equal to a preset outlet temperature threshold and the average inlet-outlet temperature difference is less than a preset temperature difference threshold, the target frequency control quantity is determined based on the preset temperature difference threshold, the ambient temperature, the outlet temperature of the first liquid cooling cabinet, the outlet temperature of the second liquid cooling cabinet, and a preset first algorithm.

[0109] In step S320, when the average outlet temperature is greater than or equal to a preset outlet temperature threshold and the average inlet-outlet temperature difference is greater than or equal to a preset temperature difference threshold, the target frequency control quantity is determined based on the preset temperature difference threshold, the ambient temperature, the outlet temperature of the first liquid cooling cabinet, the outlet temperature of the second liquid cooling cabinet, and a preset second algorithm.

[0110] In step S330, the operating frequency of the liquid pump is controlled according to the target frequency control amount.

[0111] It is understandable that step S310 involves... and In this case, step S320 involves... and In the case of, when and When this occurs, it indicates that the entire liquid cooling unit is under excessive load. and This indicates that the entire liquid cooling unit is severely overloaded. In both cases, it is necessary to determine the target frequency control value and then control the operating frequency of the liquid pump based on this target frequency control value. The difference lies in the fact that the target frequency control value obtained using the preset second algorithm is greater than the target frequency control value obtained using the preset first algorithm.

[0112] Accordingly, in some embodiments, the preset first algorithm includes the following formula (3):

[0113]

[0114] The preset second algorithm includes the following formula (4):

[0115]

[0116] In formulas (3) and (4), F2 represents the target frequency control quantity, Round(...) represents the rounding function, ΔT represents the preset temperature difference threshold, A ranges from (2℃ to 6℃), Th represents the ambient temperature, Tout1 represents the liquid outlet temperature of the first liquid cooling cabinet, Tout2 represents the liquid outlet temperature of the second liquid cooling cabinet, and T... set This indicates the preset calibration value.

[0117] In some embodiments, in the step of controlling the operating state of the liquid pump in the main pipeline based on the ambient temperature, the liquid outlet temperature of the first liquid cooling cabinet, the liquid outlet temperature of the second liquid cooling cabinet, the average value of the liquid outlet temperature, and the average value of the inlet and outlet liquid temperature difference (i.e., the step involved in step S120), such as Figure 6 As shown, it may also include the following steps:

[0118] In step S410, when the average outlet temperature is less than a preset outlet temperature threshold and the average inlet and outlet temperature difference is greater than or equal to a preset temperature difference threshold, the valve step of the regulating valve in the liquid pump is controlled to its maximum value.

[0119] It is understandable that step S410 involves... and The situation. When and If this occurs, it indicates that the load of the entire liquid chiller unit is abnormal. In this case, the valve step of the regulating valve in the liquid pump needs to be controlled to its maximum value, that is, the regulating valve in the liquid pump needs to be opened to 100% in order to drive the entire liquid chiller unit to achieve load balance.

[0120] As described above, in the control method of the liquid-cooled unit provided in the embodiments of this application, the load of the entire liquid-cooled unit is first analyzed, and divided into the following four cases: 1. and 2. and 3. and 4. and Further analysis of the liquid level differences and dynamic trends between the two liquid-cooled cabinets is divided into three cases: a) -X≤ΔL=L1-L2≤X; b) ΔL>X; c) ΔL<-X. For cases 1, 2, 3, and 4, if case a occurs during subsequent analysis of the liquid level differences and dynamic trends between the two liquid-cooled cabinets, the connection amplitude of the communicating vessel needs to be controlled to a preset amplitude (involved in steps S210-S240). The preset amplitudes are different for each case. If cases b and c occur during subsequent analysis of the liquid level differences and dynamic trends between the two liquid-cooled cabinets, the valve step of the regulating valve in the inlet pipeline corresponding to the first or second liquid-cooled cabinet needs to be reduced by the first preset step number (involved in steps S250-S260). The preset first step number is different for each case.

[0121] Since the load level of the entire liquid chiller unit increases in the four scenarios (1, 2, 3, and 4), the preset amplitudes for scenarios 1, 2, 3, and 4 also generally increase. Similarly, the preset first step number for scenarios 2, 3, and 4 also generally increases. It is understandable that for scenario 1, because the valve step of the regulating valve in the inlet pipeline corresponding to the liquid chiller cabinet with the lower liquid level is increased, its corresponding preset first step number can be greater than the preset first step number for scenarios 2, 3, and 4.

[0122] For example, the preset amplitude corresponding to Case 1, Case 2, Case 3, and Case 4 can be 50%, 70%, 90%, and 100%, respectively; the preset number of steps corresponding to Case 1, Case 2, Case 3, and Case 4 can be 100 steps, 50 steps, 100 steps, and 200 steps, respectively.

[0123] As a second aspect of the embodiments of this application, an electronic device is provided, wherein, as Figure 7 As shown, the electronic device includes:

[0124] One or more processors 101;

[0125] The memory 102 stores one or more computer programs that, when executed by the one or more processors 101, cause the one or more processors 101 to implement the control method for the liquid-cooled unit provided in the first aspect of the embodiments of this application.

[0126] The electronic device may also include one or more I / O interfaces 103 connected between the processor 101 and the memory 102, configured to enable information interaction between the processor 101 and the memory 102.

[0127] The processor 101 is a device with data processing capabilities, including but not limited to a central processing unit (CPU); the memory 102 is a device with data storage capabilities, including but not limited to random access memory (RAM, more specifically SDRAM, DDR, etc.), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), and flash memory (FLASH); the I / O interface (read-write interface) is connected between the processor and the memory, enabling information exchange between the processor and the memory, including but not limited to a data bus (Bus).

[0128] In some embodiments, the processor 101, memory 102, and I / O interface 103 are interconnected via bus 104, and thus connected to other components of the computing device.

[0129] As a third aspect of the embodiments of this application, such as Figure 8 As shown, a computer-readable medium is provided, on which a computer program is stored, wherein when the computer program is executed by a processor, it implements the control method of the liquid-cooled unit provided in the first aspect of the embodiments of this application.

[0130] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. Accordingly, the computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can implement the methods of any of the above embodiments. Any references to memory, storage, databases, or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), RAMbus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0131] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Those skilled in the art should understand that this application includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this application will be included within the scope of the claims.

Claims

1. A control method for a liquid-cooled unit, the liquid-cooled unit comprising a first liquid-cooled cabinet, a second liquid-cooled cabinet, a liquid supply ring network pipeline, a liquid return ring network pipeline, a main pipeline connecting the liquid supply ring network pipeline and the liquid return ring network pipeline, an inlet pipeline connecting the liquid-cooled cabinet and the liquid supply ring network pipeline, and an outlet pipeline connecting the liquid-cooled cabinet and the liquid return ring network pipeline, characterized in that, The liquid cooling unit further includes a connecting pipe connecting the first liquid cooling cabinet and the second liquid cooling cabinet. The lengths of the liquid inlet and outlet pipes corresponding to the first liquid cooling cabinet and the liquid inlet and outlet pipes corresponding to the second liquid cooling cabinet are matched. The method is executed periodically, and the method includes: The ambient temperature, the liquid outlet temperature of the first liquid cooling cabinet, the liquid outlet temperature of the second liquid cooling cabinet, and the average value of the liquid outlet temperature and the average value of the inlet and outlet temperature difference between the first liquid cooling cabinet and the second liquid cooling cabinet are detected. The operating status of the liquid pump in the main pipeline is controlled based on the ambient temperature, the liquid outlet temperature of the first liquid cooling cabinet, the liquid outlet temperature of the second liquid cooling cabinet, the average value of the liquid outlet temperature, and the average value of the inlet and outlet liquid temperature difference. The liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet, and the liquid level difference between the liquid levels of the first liquid cooling cabinet and the second liquid cooling cabinet are detected. Based on the liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet, and the liquid level difference, the operating status of the communicating vessel in the connecting pipeline and the operating status of the inlet valve in each of the liquid inlet pipelines are controlled.

2. The method according to claim 1, characterized in that, The step of controlling the operating state of the communicating vessel in the connecting pipeline and the operating state of the inlet valve in each of the liquid inlet pipelines based on the liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet, and the liquid level difference includes: When the liquid level difference is greater than or equal to the first preset liquid level threshold and less than or equal to the second preset liquid level threshold, the liquid level measurement error and liquid level balance coefficient are determined based on the liquid level of the first liquid cooling cabinet and the liquid level of the second liquid cooling cabinet. When the liquid level balance coefficient is less than a preset balance threshold, the connection amplitude of the communicating vessel is controlled to a preset amplitude; When the liquid level balance coefficient is greater than or equal to the preset balance threshold, the connection amplitude of the communicating vessel is controlled to the preset amplitude, and the target valve step control amount is determined according to the liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet, and the liquid level difference. Based on the target valve step control amount, the valve step of the inlet valve in each of the inlet pipelines is controlled.

3. The method according to claim 2, characterized in that, The liquid level measurement error and liquid level balance coefficient are determined by the following formula (1): The target valve step control quantity is determined by the following formula (2): F1=Round(kp*(ΔL C 1-ΔL C 2)+ki*ΔL+kd*(ΔL C 1-2ΔL C 2+ΔL C 3))*θ*100%(2); In formulas (1) and (2), ΔL C 1 represents the liquid level measurement error, f′ represents the liquid level balance coefficient, L1 represents the liquid level of the first liquid cooling cabinet, L2 represents the liquid level of the second liquid cooling cabinet, F1 represents the target valve step control quantity, Round(...) represents the rounding function, kp is the proportional coefficient with a value of 0.12, ΔL C 2 represents the liquid level measurement error in the previous cycle, ki is the integral coefficient with a value of 0.15, ΔL represents the liquid level difference, kd is the differential coefficient with a value of 0.2, and ΔL C 3 represents the liquid level measurement error in the previous cycle, and θ is the correction coefficient with a value of 0.

1.

4. The method according to claim 2, characterized in that, The step of controlling the operating state of the communicating vessel in the connecting pipeline and the operating state of the inlet valve in each of the liquid inlet pipelines based on the liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet, and the liquid level difference further includes: When the liquid level difference is greater than the second preset liquid level threshold, the valve step of the regulating valve in the liquid inlet pipeline corresponding to the first liquid cooling cabinet is reduced by the first preset number of steps. When the liquid level difference is less than the first preset liquid level threshold, the valve step of the regulating valve in the liquid inlet pipeline corresponding to the second liquid cooling cabinet is reduced by the first preset number of steps.

5. The method according to claim 4, characterized in that, The step of controlling the operating state of the liquid pump in the main pipeline based on the ambient temperature, the liquid outlet temperature of the first liquid cooling cabinet, the liquid outlet temperature of the second liquid cooling cabinet, the average value of the liquid outlet temperature, and the average value of the inlet and outlet liquid temperature difference includes: When the average outlet temperature is less than a preset outlet temperature threshold and the average inlet-outlet temperature difference is less than a preset temperature difference threshold, the operating frequency of the liquid pump is controlled to remain unchanged. The step of controlling the operating state of the communicating vessel in the connecting pipeline and the operating state of the inlet valve in each of the liquid inlet pipelines based on the liquid level of the first liquid cooling cabinet, the liquid level of the second liquid cooling cabinet, and the liquid level difference further includes: When the liquid level difference is greater than the second preset liquid level threshold, the valve step of the regulating valve in the liquid inlet pipeline corresponding to the second liquid cooling cabinet is increased by the second preset number of steps. When the liquid level difference is less than the first preset liquid level threshold, the valve step of the regulating valve in the liquid inlet pipeline corresponding to the first liquid cooling cabinet is increased by a second preset number of steps.

6. The method according to claim 1, characterized in that, The step of controlling the operating status of the liquid pump in the main pipeline based on the ambient temperature, the liquid outlet temperature of the first liquid cooling cabinet, the liquid outlet temperature of the second liquid cooling cabinet, the average value of the liquid outlet temperature, and the average value of the inlet and outlet liquid temperature difference includes: When the average outlet temperature is greater than or equal to a preset outlet temperature threshold and the average inlet-outlet temperature difference is less than a preset temperature difference threshold, the target frequency control quantity is determined based on the preset temperature difference threshold, the ambient temperature, the outlet temperature of the first liquid cooling cabinet, the outlet temperature of the second liquid cooling cabinet, and a preset first algorithm. When the average outlet temperature is greater than or equal to a preset outlet temperature threshold and the average inlet and outlet temperature difference is greater than or equal to a preset temperature difference threshold, the target frequency control quantity is determined based on the preset temperature difference threshold, the ambient temperature, the outlet temperature of the first liquid cooling cabinet, the outlet temperature of the second liquid cooling cabinet, and a preset second algorithm. The operating frequency of the liquid pump is controlled according to the target frequency control value.

7. The method according to claim 6, characterized in that, The preset first algorithm includes the following formula (3): The preset second algorithm includes the following formula (4): In formulas (3) and (4), F2 represents the target frequency control quantity, Round(...) represents the rounding function, ΔT represents the preset temperature difference threshold, A ranges from (2℃ to 6℃), Th represents the ambient temperature, Tout1 represents the liquid outlet temperature of the first liquid cooling cabinet, Tout2 represents the liquid outlet temperature of the second liquid cooling cabinet, and T... set This indicates the preset calibration value.

8. The method according to claim 6, characterized in that, The step of controlling the operating state of the liquid pump in the main pipeline based on the ambient temperature, the liquid outlet temperature of the first liquid cooling cabinet, the liquid outlet temperature of the second liquid cooling cabinet, the average value of the liquid outlet temperature, and the average value of the inlet and outlet liquid temperature difference further includes: When the average outlet temperature is less than a preset outlet temperature threshold and the average inlet and outlet temperature difference is greater than or equal to a preset temperature difference threshold, the valve step of the regulating valve in the liquid pump is controlled to its maximum value.

9. An electronic device, characterized in that, The electronic device includes: One or more processors; A memory having stored one or more computer programs thereon, which, when executed by the one or more processors, cause the one or more processors to implement the control method for the liquid-cooled unit according to any one of claims 1-8.

10. A computer-readable medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the control method for the liquid-cooled unit according to any one of claims 1-8.

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