Liquid Cooling CDU Flow Regulator Control Method, Device, Equipment, System and Medium

Abstract

The present invention provides a control method, device, equipment, system and medium for a liquid-cooled CDU flow regulator, belonging to the technical field of liquid-cooled heat dissipation. The above-mentioned control method for the liquid-cooled CDU flow regulator may include: obtaining the current opening degree of the flow regulator; determining the adjustment range of the flow regulator based on the current opening degree; the adjustment range is negatively correlated with the current opening degree; and adjusting the flow regulator based on the adjustment range. This application can use a larger adjustment range for adjustment when the opening degree of the flow regulator is small, which can reduce the number of adjustments, avoid frequent jitter adjustment, reduce the wear of the flow regulator, prevent affecting the control accuracy of the flow regulator, and can achieve rapid adjustment, improve the response speed, enhance the adjustment stability, and improve the reliability of the liquid-cooled system; when the opening degree of the flow regulator is large, use a smaller adjustment range for adjustment, which can improve the adjustment accuracy and achieve the effect of precise adjustment.

Description

Technical Field

[0001] The present invention relates to the field of liquid cooling technology, and in particular to a liquid cooling CDU flow regulator control method, device, equipment, system and medium. Background Art

[0002] With the rapid development of technologies such as artificial intelligence and big data, the scale of intelligent computing centers as computing power infrastructure continues to expand, and the computing power density continues to increase, which puts higher requirements on the heat dissipation system. Traditional air cooling can no longer meet the heat dissipation needs of high-density and high-power consumption equipment in intelligent computing centers. There are problems such as low heat dissipation efficiency, high energy consumption, and high noise, which seriously restricts the development of intelligent computing centers.

[0003] Liquid cooling technology has attracted widespread attention as an efficient and energy-saving heat dissipation method. The liquid cooling system removes the heat generated by the equipment through liquid circulation, thereby ensuring that the equipment operates within a safe temperature range. The flow regulator, as a key component in the liquid cooling system, is responsible for accurately controlling and regulating the flow of the coolant to ensure that the coolant can be accurately distributed to each device or component that needs to be cooled according to the system's needs, thereby achieving effective thermal management.

[0004] In the related art, when controlling or adjusting the flow regulator, frequent adjustments may be required to adjust the opening degree of the flow regulator to the right level. However, frequent actions will cause the mechanical parts of the flow regulator to constantly rub and collide, accelerating their wear, thereby affecting the control accuracy and stability, and further affecting the reliability of the liquid cooling system. Summary of the invention

[0005] The embodiments of the present invention provide a liquid-cooled CDU flow regulator control method, device, equipment, system and medium to solve the problem in the prior art that the mechanical parts of the flow regulator are constantly rubbed and collided, which accelerates their wear, thereby affecting the control accuracy and stability, and further affecting the reliability of the liquid cooling system.

[0006] In a first aspect, an embodiment of the present invention provides a liquid-cooled CDU flow regulator control method, comprising:

[0007] Get the current opening degree of the flow regulator;

[0008] Based on the current opening degree, the adjustment range of the flow regulator is determined; the adjustment range is negatively correlated with the current opening degree;

[0009] Based on the adjustment range, the flow regulator is adjusted.

[0010] In a possible implementation, determining the adjustment amplitude of the flow regulator based on the current opening degree includes:

[0011] According to , determine the adjustment range of the flow regulator ; where is the current opening degree, is the first constant, , is the second constant.

[0012] In a possible implementation, based on the adjustment range, adjusting the flow regulator includes:

[0013] Obtain the target opening degree of the flow regulator;

[0014] Calculate the absolute value of the difference between the target opening degree and the current opening degree;

[0015] If the absolute value is greater than or equal to the adjustment range, adjust the flow regulator based on the adjustment range;

[0016] If the absolute value is less than the adjustment range, control the flow regulator to maintain the current opening degree.

[0017] In a possible implementation, if the absolute value is greater than or equal to the adjustment range, adjusting the flow regulator based on the adjustment range includes:

[0018] If the absolute value is greater than or equal to the adjustment range, adjust the flow regulator in the direction of narrowing the gap with the target opening degree based on the adjustment range.

[0019] In a possible implementation, adjusting the flow regulator based on the adjustment range includes:

[0020] Obtain the theoretical opening degree after a virtual adjustment of the flow regulator based on the adjustment range;

[0021] If the theoretical opening degree is greater than the maximum opening degree of the flow regulator, adjust the opening degree of the flow regulator to the maximum opening degree;

[0022] If the theoretical opening degree is less than the minimum opening degree of the flow regulator, adjust the opening degree of the flow regulator to the minimum opening degree;

[0023] If the theoretical opening degree is greater than or equal to the minimum opening degree and less than or equal to the maximum opening degree, adjust the opening degree of the flow regulator to the theoretical opening degree.

[0024] In a possible implementation, adjusting the flow regulator based on the adjustment range includes:

[0025] Based on the adjustment range, perform an actual adjustment on the flow regulator and obtain the adjusted opening degree of the flow regulator;

[0026] Use the adjusted opening degree as the new current opening degree, and jump to the step of determining the adjustment range of the flow regulator based on the current opening degree to continue execution.

[0027] In a second aspect, an embodiment of the present invention provides a control device for a liquid-cooled CDU flow regulator, including:

[0028] An acquisition module, configured to acquire the current opening degree of the flow regulator;

[0029] An adjustment range determination module, configured to determine the adjustment range of the flow regulator based on the current opening degree; the adjustment range has a negative correlation with the current opening degree;

[0030] An adjustment module, configured to adjust the flow regulator based on the adjustment range.

[0031] In a third aspect, an embodiment of the present invention provides a control device, including a processor and a memory, where the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the liquid-cooled CDU flow regulator control method described in the first aspect or any possible implementation manner of the first aspect above.

[0032] In a fourth aspect, an embodiment of the present invention provides a liquid-cooled system, including a flow regulator and the control device described in the third aspect; the flow regulator is controlled by the control device.

[0033] In a fifth aspect, an embodiment of the present invention provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the liquid-cooled CDU flow regulator control method described in the first aspect or any possible implementation manner of the first aspect above are implemented.

[0034] An embodiment of the present invention provides a liquid-cooled CDU flow regulator control method, device, equipment, system and medium. The method determines the adjustment range of the flow regulator based on the current opening degree of the flow regulator, and adjusts the flow regulator with this adjustment range. Among them, the adjustment range has a negative correlation with the current opening degree, that is, the larger the current opening degree of the flow regulator, the smaller the adjustment range, and the smaller the current opening degree of the flow regulator, the larger the adjustment range. Thus, when the opening degree of the flow regulator is small, a larger adjustment range can be used for adjustment, which can reduce the number of adjustments, avoid frequent jitter adjustment, reduce the wear of the flow regulator, avoid affecting the control accuracy of the flow regulator, and can achieve rapid adjustment, improve the response speed, enhance the adjustment stability, and improve the reliability of the liquid-cooled system; when the opening degree of the flow regulator is large, a smaller adjustment range can be used for adjustment, which can improve the adjustment accuracy and achieve the effect of precise adjustment. Description of the Drawings

[0035] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0036] Figure 1 is the implementation flowchart of the control method for the liquid-cooled CDU flow regulator provided by an embodiment of the present invention;

[0037] Figure 2 is the schematic diagram of the liquid-cooled CDU flow regulator control device provided by an embodiment of the present invention;

[0038] Figure 3 is the schematic diagram of the control device provided by an embodiment of the present invention. Detailed Embodiments

[0039] In the following description, specific details such as specific system structures and technologies are proposed for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. However, those skilled in the art should clearly understand that the present invention can also be implemented in other embodiments without these specific details. In other cases, the detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from interfering with the description of the present invention.

[0040] To make the objectives, technical solutions, and advantages of the present invention clearer, the following will be described through specific embodiments in conjunction with the drawings.

[0041] Refer to Figure 1 , which shows the implementation flowchart of the control method for the liquid-cooled CDU (Coolant Distribution Unit) flow regulator provided by an embodiment of the present invention. The execution subject of the control method for the liquid-cooled CDU flow regulator is a control device. This control device can be a controller, such as a DSP (Digital Signal Processor) and other controllers, or can be a controller in the liquid-cooled system, and so on.

[0042] The above-mentioned control method for the liquid-cooled CDU flow regulator is described in detail as follows:

[0043] In S101, obtain the current opening degree of the flow regulator.

[0044] Among them, the flow regulator can be a device used to regulate the flow rate of the coolant in the liquid-cooled system. Exemplarily, it can be a valve, such as various types of electric valves or manual valves, and so on.

[0045] In the embodiments of the present application, there is no specific limitation on the method for obtaining the current opening degree of the flow regulator, and any feasible method can be used. For example, a high-precision potentiometer-type sensor can be used, which can accurately feedback the resistance change as the valve stem of the flow regulator rotates, and then convert it into an accurate opening degree value, so as to obtain the current opening degree of the flow regulator and transmit the current opening degree of the flow regulator to the control device; a flow meter can also be used to measure the flow rate of the coolant, and then based on the flow characteristic curve of the flow regulator and the measured flow rate, the opening degree of the flow regulator can be deduced inversely; it can also be achieved by installing pressure sensors before and after the flow regulator, measuring the pressures before and after the flow regulator, calculating the pressure difference, and based on the pressure difference and the corresponding formula or model, deducing the current opening degree of the flow regulator; and so on. Among them, the opening degree of the flow regulator refers to the degree of opening of the flow regulator, and can also be called the opening or opening degree of the flow regulator, and so on.

[0046] In S102, based on the current opening degree, determine the adjustment amplitude of the flow regulator; the adjustment amplitude is negatively correlated with the current opening degree.

[0047] In the embodiments of the present application, the adjustment amplitude of the flow regulator can be determined according to the current opening degree of the flow regulator, and the adjustment amplitude of the flow regulator changes with the change of the current opening degree of the flow regulator. The adjustment amplitude refers to the size of the opening degree for adjusting the flow regulator once, and can also be called the adjustment step or adjustment increment or decrement, and so on. For example, if the current opening degree is A and the adjustment amplitude is B, then the opening degree of the flow regulator after adjusting the opening degree of the flow regulator in the increasing direction once is A + B, and the opening degree of the flow regulator after adjusting the opening degree of the flow regulator in the decreasing direction once is A - B.

[0048] The adjustment amplitude of the flow regulator is negatively correlated with the current opening degree of the flow regulator, that is, the larger the current opening degree of the flow regulator, the smaller the adjustment amplitude of the flow regulator; the smaller the current opening degree of the flow regulator, the larger the adjustment amplitude of the flow regulator.

[0049] Specifically, when the flow regulator is in a large opening degree state, it means that the liquid cooling system is in a stage with a large demand for coolant flow at this time. For example, when the liquid cooling system in a large data center or a large intelligent computing center just starts or encounters a high-intensity computing load resulting in serious server heating, the coolant needs to flow through each heat dissipation part quickly and in large quantities. At this time, the flow regulator has a large opening degree, and correspondingly, the adjustment amplitude will be smaller. This is because the liquid cooling system is already close to the maximum flow delivery state. If the adjustment amplitude is too large, it is extremely easy to cause excessive fluctuations in the flow rate, which will in turn lead to temperature control imbalance. Therefore, in order to ensure that the coolant flow can be finely adjusted smoothly and accurately on the basis of a large opening degree, the adjustment amplitude must be reduced.

[0050] Conversely, when the flow regulator is in a small opening state, such as when the load of the liquid cooling system is small, the heat generated by the equipment is limited, and only a small amount of coolant flowing slowly can meet the heat dissipation requirements, the liquid cooling system needs to quickly adjust the state of the flow regulator to adapt to the new heat dissipation requirements. At this time, since it is still far from the maximum flow delivery, even if the adjustment range is slightly larger, it will not cause a subversive impact on the overall flow and temperature control of the system. Instead, it can speed up the adjustment speed and quickly and accurately make the flow regulator reach the ideal small opening. Therefore, the adjustment range is often larger at this time.

[0051] In summary, this negative correlation between the adjustment range and the current opening is an important basis for ensuring the efficient and stable operation of the liquid cooling system. It runs through the entire control process and always affects the formulation and implementation of the adjustment strategy.

[0052] In S103, the flow regulator is adjusted based on the adjustment range.

[0053] After determining the adjustment range based on the current opening, if an adjustment instruction is received, or the flow regulator needs to be adjusted based on the liquid cooling demand, then according to this adjustment range, the flow regulator is controlled to adjust in the direction close to the target opening. Here, the target opening refers to the opening to which the flow regulator needs to be adjusted.

[0054] It should be noted that the adjustment range is not fixed. When the current opening of the flow regulator changes, the adjustment range also changes accordingly. That is to say, each time an adjustment is made, the adjustment range needs to be recalculated.

[0055] In the embodiment of the present application, by obtaining the current opening of the flow regulator, determining the adjustment range of the flow regulator based on the current opening of the flow regulator, and adjusting the flow regulator with this adjustment range, where the adjustment range has a negative correlation with the current opening, that is, the larger the current opening of the flow regulator, the smaller the adjustment range, and the smaller the current opening of the flow regulator, the larger the adjustment range. Thus, when the opening of the flow regulator is small, a larger adjustment range can be used for adjustment, which can reduce the number of adjustments, avoid frequent jitter adjustment, reduce the wear of the flow regulator, avoid affecting the control accuracy of the flow regulator, and can extend the service life, and can achieve rapid adjustment, improve the response speed, and enhance the adjustment stability; when the opening of the flow regulator is large, a smaller adjustment range can be used for adjustment, which can improve the adjustment accuracy and achieve the effect of precise adjustment; the method provided by the embodiment of the present application can improve the control accuracy of the flow regulator, and thus can improve the reliability of the liquid cooling system.

[0056] The implementation process of the control method for the liquid-cooled CDU flow regulator was briefly introduced in the above embodiments. Next, each step in the above control method for the liquid-cooled CDU flow regulator will be introduced in detail. First, the implementation manner of S102 above will be specifically described as follows in detail.

[0057] In some embodiments, determining the adjustment amplitude of the flow regulator based on the current opening degree may include:

[0058] According to , determine the adjustment amplitude of the flow regulator ; where is the current opening degree, is the first constant, , is the second constant.

[0059] Among them, the value of the current opening degree is between 0 and 1, that is, the value range of the current opening degree is [0,1].

[0060] And The values of can be determined according to actual needs and / or relevant experience. Exemplarily, The value range of can be [0.001, 0.05]. For example, The value of can be 0.001, 0.005, 0.01, 0.02, 0.03, 0.04 or 0.05, etc.; The value range of can be [0.001, 0.01]. For example, The value of can be 0.001, 0.003, 0.005, 0.007, 0.009 or 0.01, etc.

[0061] Based on the above calculation formula of the adjustment amplitude, when the current opening degree increases, the adjustment amplitude decreases. When the current opening degree decreases, the adjustment amplitude increases.

[0062] In the small opening degree stage of the flow regulator, a larger adjustment amplitude is adopted for rapid adjustment, which can quickly make the liquid-cooled system reach a state close to the target, and avoid problems such as too slow adjustment speed and frequent jitter due to too small adjustment amplitude at small opening degrees. In the large opening degree stage of the flow regulator, a smaller adjustment amplitude is adopted for precise adjustment to ensure that the liquid-cooled system can accurately reach the target state and improve the control accuracy.

[0063] Next, the implementation manner of S103 will be introduced in detail.

[0064] In some embodiments, adjusting the flow regulator based on the adjustment range may include:

[0065] Obtain the target opening degree of the flow regulator;

[0066] Calculate the absolute value of the difference between the target opening degree and the current opening degree;

[0067] If the absolute value is greater than or equal to the adjustment range, adjust the flow regulator based on the adjustment range;

[0068] If the absolute value is less than the adjustment range, control the flow regulator to maintain the current opening degree.

[0069] Wherein, the target opening degree of the flow regulator refers to the opening degree to which the flow regulator needs to be adjusted from the current opening degree, that is, the flow regulator needs to be adjusted from the current opening degree to the target opening degree.

[0070] In the embodiments of the present application, by calculating the absolute value of the difference between the target opening degree and the current opening degree and comparing the absolute value with the adjustment range, if the absolute value is greater than or equal to the adjustment range, it indicates that the opening degree to be adjusted is large, greater than or equal to the adjustment range. At this time, the flow regulator can be adjusted; if the absolute value is less than the adjustment range, it indicates that the opening degree to be adjusted is small, less than the adjustment range, and the adjusted opening degree exceeds the target opening degree. At this time, the flow regulator will not be adjusted, and the flow regulator will maintain the current opening degree unchanged. Thereby, it is possible to avoid frequent adjustments caused by small fluctuations, reduce the number of operations of the flow regulator, and at the same time reduce the control complexity and energy consumption to a certain extent.

[0071] In the embodiments of the present application, the adjustment range is equivalent to setting a certain opening degree adjustment range. When the target opening degree of the flow regulator fluctuates within this range, the control instruction will not be updated, that is, the opening degree of the flow regulator will not be adjusted, and it will maintain the current opening degree. Only when the target opening degree of the flow regulator exceeds this range, the control instruction will be updated to adjust the opening degree of the flow regulator. Similar to hysteresis control, when there are small changes in the opening degree of the flow regulator, due to the existence of hysteresis, the control device will not immediately respond to these small changes, but will only adjust after the changes accumulate to a certain extent and exceed the hysteresis range, thereby effectively avoiding the problem of frequent jitter adjustment when there are small changes in the opening degree and improving stability.

[0072] In some embodiments, the above-mentioned if the absolute value is greater than or equal to the adjustment range, then adjusting the flow regulator based on the adjustment range includes:

[0073] If the absolute value is greater than or equal to the adjustment range, adjust the flow regulator in the direction of narrowing the gap with the target opening degree based on the adjustment range.

[0074] In the embodiments of the present application, since it is necessary to adjust the opening degree of the flow regulator to the target opening degree, when it is necessary to adjust the opening degree of the flow regulator, it is necessary to adjust in the direction of narrowing the gap with the target opening degree. For example, if the target opening degree is greater than the current opening degree, adjust in the direction of increasing the opening degree; if the target opening degree is less than the current opening degree, adjust in the direction of decreasing the opening degree.

[0075] In some embodiments, the above adjustment of the flow regulator based on the adjustment amplitude includes:

[0076] Obtain the theoretical opening degree after a virtual adjustment of the flow regulator based on the adjustment amplitude;

[0077] If the theoretical opening degree is greater than the maximum opening degree of the flow regulator, adjust the opening degree of the flow regulator to the maximum opening degree;

[0078] If the theoretical opening degree is less than the minimum opening degree of the flow regulator, adjust the opening degree of the flow regulator to the minimum opening degree;

[0079] If the theoretical opening degree is greater than or equal to the minimum opening degree and less than or equal to the maximum opening degree, adjust the opening degree of the flow regulator to the theoretical opening degree.

[0080] Among them, virtual adjustment means that no actual adjustment is made to the flow regulator. The purpose of proposing virtual adjustment is only to calculate the opening degree after one adjustment based on the adjustment amplitude, but no actual adjustment is made to the flow regulator.

[0081] If the flow regulator is adjusted in the direction of increasing the opening degree, the above-mentioned theoretical opening degree is the opening degree after adding the adjustment amplitude to the current opening degree; if the flow regulator is adjusted in the direction of decreasing the opening degree, the above-mentioned theoretical opening degree is the opening degree after subtracting the adjustment amplitude from the current opening degree. The adjustment amplitude is usually a positive value. Among them, the adjustment direction can be determined according to the size of the current opening degree and the target opening degree of the flow regulator. If the target opening degree is greater than the current opening degree, the adjustment direction is the direction of increasing the opening degree; if the target opening degree is less than the current opening degree, the adjustment direction is the direction of decreasing the opening degree.

[0082] Since the opening degree of the flow regulator has a maximum opening degree and a minimum opening degree, when adjusting the flow regulator each time, it is necessary to consider whether the theoretical opening degree is greater than the maximum opening degree of the flow regulator or less than the minimum opening degree of the flow regulator. If the theoretical opening degree is greater than the maximum opening degree of the flow regulator, it means that the opening degree of the flow regulator cannot be adjusted to this theoretical opening degree. At this time, the opening degree of the flow regulator can be adjusted to the maximum opening degree. If the theoretical opening degree is less than the minimum opening degree of the flow regulator, it means that the opening degree of the flow regulator cannot be adjusted to this theoretical opening degree. At this time, the opening degree of the flow regulator can be adjusted to the minimum opening degree. If the theoretical opening degree is greater than or equal to the minimum opening degree and less than or equal to the maximum opening degree, the opening degree of the flow regulator can be adjusted to the theoretical opening degree.

[0083] Among them, the maximum opening degree of the flow regulator is usually 1, and the minimum opening degree of the flow regulator is usually 0; of course, due to possible other restrictions, the maximum opening degree of the flow regulator may be less than 1, and the minimum opening degree of the flow regulator may also be greater than 0. There is no specific limit here, but the minimum opening degree of the flow regulator is less than the maximum opening degree of the flow regulator.

[0084] In some embodiments, the above adjustment of the flow regulator based on the adjustment amplitude includes:

[0085] Based on the adjustment amplitude, perform an actual adjustment on the flow regulator once, and obtain the opening degree of the flow regulator after adjustment;

[0086] Take the opening degree after adjustment as the new current opening degree, and jump to the step of determining the adjustment amplitude of the flow regulator based on the current opening degree to continue execution.

[0087] The above opening degree after adjustment is the opening degree after performing an actual adjustment on the flow regulator based on the adjustment amplitude.

[0088] If the flow regulator is adjusted in the direction of increasing the opening degree, the above opening degree after adjustment is the opening degree after adding the adjustment amplitude to the current opening degree; if the flow regulator is adjusted in the direction of decreasing the opening degree, the above opening degree after adjustment is the opening degree after subtracting the adjustment amplitude from the current opening degree. Among them, the adjustment direction can be determined according to the size of the current opening degree and the target opening degree of the flow regulator. If the target opening degree is greater than the current opening degree, the adjustment direction is the direction of increasing the opening degree; if the target opening degree is less than the current opening degree, the adjustment direction is the direction of decreasing the opening degree.

[0089] After each actual adjustment of the opening degree of the flow regulator, it is necessary to re-determine the current opening degree, and re-determine the adjustment range according to the current opening degree for continuous adjustment until the opening degree of the flow regulator is adjusted to the target opening degree or close to the target opening degree.

[0090] Based on the foregoing detailed introduction to S103, in a possible implementation manner, the above S103 may include:

[0091] Obtain the target opening degree of the flow regulator;

[0092] Calculate the absolute value of the difference between the target opening degree and the current opening degree;

[0093] If the absolute value is greater than or equal to the adjustment range, based on the adjustment range, make an actual adjustment in the direction of narrowing the gap with the target opening degree, and obtain the adjusted opening degree of the flow regulator; use the adjusted opening degree as the new current opening degree, and jump to the step of determining the adjustment range of the flow regulator based on the current opening degree to continue execution until the opening degree of the flow regulator is adjusted to the target opening degree or the absolute value is less than the adjustment range;

[0094] If the absolute value is less than the adjustment range, control the flow regulator to maintain the current opening degree.

[0095] For the detailed introduction in this implementation manner, reference may be made to the description in the foregoing embodiments, and no specific introduction will be made here.

[0096] It should be understood that the magnitudes of the sequence numbers of the steps in the above embodiments do not mean the order of execution. The execution order of each process should be determined according to its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.

[0097] Figure 2 The structure diagram of the liquid-cooled CDU flow regulator control device provided by the embodiment of the present invention is shown. For the convenience of description, only the parts related to the embodiment of the present invention are shown, and the details are as follows:

[0098] As Figure 2 shown, the liquid-cooled CDU flow regulator control device 30 includes: an acquisition module 31, an adjustment range determination module 32, and an adjustment module 33.

[0099] The acquisition module 31 is used to acquire the current opening degree of the flow regulator;

[0100] The adjustment range determination module 32 is used to determine the adjustment range of the flow regulator based on the current opening degree; the adjustment range has a negative correlation with the current opening degree;

[0101] The adjustment module 33 is used to adjust the flow regulator based on the adjustment range.

[0102] In a possible implementation, the adjustment range determination module 32 may specifically be configured to:

[0103] Based on , determine the adjustment range of the flow regulator ; wherein, is the current opening degree, is the first constant, , is the second constant.

[0104] In a possible implementation, the adjustment module 33 may specifically be configured to:

[0105] Obtain the target opening degree of the flow regulator;

[0106] Calculate the absolute value of the difference between the target opening degree and the current opening degree;

[0107] If the absolute value is greater than or equal to the adjustment range, adjust the flow regulator based on the adjustment range;

[0108] If the absolute value is less than the adjustment range, control the flow regulator to maintain the current opening degree.

[0109] In a possible implementation, in the adjustment module 33, if the absolute value is greater than or equal to the adjustment range, adjusting the flow regulator based on the adjustment range includes:

[0110] If the absolute value is greater than or equal to the adjustment range, adjust the flow regulator in the direction of narrowing the gap with the target opening degree based on the adjustment range.

[0111] In a possible implementation, the adjustment module 33 may specifically be configured to:

[0112] Obtain the theoretical opening degree after a virtual adjustment of the flow regulator based on the adjustment range;

[0113] If the theoretical opening degree is greater than the maximum opening degree of the flow regulator, adjust the opening degree of the flow regulator to the maximum opening degree;

[0114] If the theoretical opening degree is less than the minimum opening degree of the flow regulator, adjust the opening degree of the flow regulator to the minimum opening degree;

[0115] If the theoretical opening degree is greater than or equal to the minimum opening degree and less than or equal to the maximum opening degree, adjust the opening degree of the flow regulator to the theoretical opening degree.

[0116] In a possible implementation, the adjustment module 33 may specifically be configured to:

[0117] Based on the adjustment range, perform an actual adjustment on the flow regulator and obtain the opening degree of the flow regulator after adjustment;

[0118] Take the adjusted opening degree as the new current opening degree, and jump to the step of determining the adjustment range of the flow regulator based on the current opening degree to continue execution.

[0119] Figure 3 It is a schematic diagram of the control device provided by an embodiment of the present invention. As Figure 3 shown, the control device 4 of this embodiment includes: a processor 40 and a memory 41. The memory 41 is used to store a computer program 42, and the processor 40 is used to call and run the computer program 42 stored in the memory 41, and execute the steps in the above-mentioned embodiments of the liquid-cooled CDU flow regulator control method, such as Figure 1 shown in S101 to S103. Alternatively, the processor 40 is used to call and run the computer program 42 stored in the memory 41 to implement the functions of each module / unit in the above-mentioned device embodiments, such as Figure 2 the functions of each module shown.

[0120] Exemplarily, the computer program 42 can be divided into one or more modules / units. The one or more modules / units are stored in the memory 41 and executed by the processor 40 to complete the present invention. The one or more modules / units can be a series of computer program instruction segments capable of performing specific functions, and this instruction segment is used to describe the execution process of the computer program 42 in the control device 4. For example, the computer program 42 can be divided into Figure 2 each module shown.

[0121] The control device 4 may include, but is not limited to, a processor 40 and a memory 41. Those skilled in the art can understand that Figure 3 this is only an example of the control device 4, and does not constitute a limitation on the control device 4. It may include more or fewer components than shown in the figure, or combine certain components, or different components. For example, the control device may further include input / output devices, network access devices, buses, etc.

[0122] The processor 40 may be a Central Processing Unit (CPU), or may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field-Programmable Gate Arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor, etc.

[0123] The memory 41 may be an internal storage unit of the control device 4, such as the hard disk or memory of the control device 4. The memory 41 may also be an external storage device of the control device 4, such as a plug-in hard disk, Smart Media Card (SMC), Secure Digital (SD) card, Flash Card, etc. equipped on the control device 4. Further, the memory 41 may also include both the internal storage unit and the external storage device of the control device 4. The memory 41 is used to store the computer program and other programs and data required by the control device. The memory 41 may also be used to temporarily store data that has been output or is to be output.

[0124] Corresponding to the above control device, an embodiment of the present invention further provides a liquid cooling system, including the above flow regulator and the above control device; the flow regulator is controlled by the control device.

[0125] For the related description of the liquid cooling system, reference may be made to the description in the foregoing embodiments, and details are not repeated here.

[0126] An embodiment of the present application further provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the steps of any of the above liquid cooling CDU flow regulator control methods are implemented.

[0127] An embodiment of the present application further provides a computer program product, including a computer program. When the computer program is executed by a processor, any of the above liquid cooling CDU flow regulator control methods is implemented.

[0128] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the above-mentioned division of each functional unit and module is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional units and modules according to needs, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. Each functional unit and module in the embodiments can be integrated into a processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of a software functional unit. In addition, the specific names of each functional unit and module are only for the convenience of mutual distinction and do not limit the protection scope of this application. The specific working processes of the units and modules in the above system can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein.

[0129] In the above embodiments, the descriptions of the respective embodiments have their own emphases. For the parts not detailed or recorded in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0130] Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or by a combination of computer software and electronic hardware. Whether these functions are executed in the form of hardware or software depends on the specific application and design constraints of the technical solution. A professional technician can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present invention.

[0131] In the embodiments provided by the present invention, it should be understood that the disclosed device / control device and method can be implemented in other ways. For example, the device / control device embodiments described above are only illustrative. For example, the division of the above-mentioned modules or units is only a logical function division. In actual implementation, there can be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces. The indirect couplings or communication connections of the devices or units can be in electrical, mechanical or other forms.

[0132] The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they can be located in one place, or can be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0133] In addition, in each embodiment of the present invention, each functional unit may be integrated into a processing unit, may exist independently as individual units physically, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of a software functional unit.

[0134] If the integrated module / unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a computer-readable storage medium. Based on such an understanding, to implement all or part of the processes in the above-mentioned embodiment methods of the present invention, it may also be completed by instructing relevant hardware through a computer program. The computer program may be stored in a computer-readable storage medium. When the computer program is executed by a processor, the steps of the above-mentioned various embodiments of the liquid-cooled CDU flow regulator control method can be implemented. Among them, the computer program includes computer program code, and the computer program code may be in the form of source code, object code, executable file, or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disc, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signal, telecommunication signal, and software distribution medium, etc. It should be noted that the content included in the computer-readable medium may be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, the computer-readable medium does not include electrical carrier signals and telecommunication signals.

[0135] The above-mentioned embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention, and should all be included in the protection scope of the present invention.

Claims

1. A control method for a liquid-cooled CDU flow regulator, characterized in that, Including: Obtain the current opening degree of the flow regulator; Based on the current opening degree, determine the adjustment range of the flow regulator; The adjustment range has a negative correlation with the current opening degree; Based on the adjustment range, adjust the flow regulator; The adjusting the flow regulator based on the adjustment range includes: Based on the adjustment range, perform an actual adjustment on the flow regulator and obtain the opening degree of the flow regulator after adjustment; Take the adjusted opening degree as the new current opening degree, and jump to the step of determining the adjustment range of the flow regulator based on the current opening degree to continue execution.

2. The liquid-cooled CDU flow regulator control method according to claim 1, wherein The determining the adjustment range of the flow regulator based on the current opening degree includes: According to , determine the adjustment range of the flow regulator ; wherein is the current opening degree is the first constant , is the second constant 3. The liquid-cooled CDU flow regulator control method according to claim 1, characterized in that The adjusting the flow regulator based on the adjustment range includes: Obtain the target opening degree of the flow regulator; Calculate the absolute value of the difference between the target opening degree and the current opening degree; If the absolute value is greater than or equal to the adjustment range, adjust the flow regulator based on the adjustment range; If the absolute value is less than the adjustment range, control the flow regulator to maintain the current opening degree.

4. The liquid-cooled CDU flow regulator control method according to claim 3, characterized in that The if the absolute value is greater than or equal to the adjustment range, adjusting the flow regulator based on the adjustment range includes: If the absolute value is greater than or equal to the adjustment range, adjust the flow regulator in the direction of narrowing the gap with the target opening degree based on the adjustment range.

5. The control method of the liquid-cooled CDU flow regulator according to claim 1, characterized in that, The adjusting the flow regulator based on the adjustment range includes: Obtain the theoretical opening degree after a virtual adjustment of the flow regulator based on the adjustment range; If the theoretical opening degree is greater than the maximum opening degree of the flow regulator, adjust the opening degree of the flow regulator to the maximum opening degree; If the theoretical opening degree is less than the minimum opening degree of the flow regulator, adjust the opening degree of the flow regulator to the minimum opening degree; If the theoretical opening degree is greater than or equal to the minimum opening degree and less than or equal to the maximum opening degree, adjust the opening degree of the flow regulator to the theoretical opening degree.

6. A control device for a liquid-cooled CDU flow regulator, characterized in that, Including: An acquisition module for obtaining the current opening degree of the flow regulator; An adjustment range determination module for determining the adjustment range of the flow regulator based on the current opening degree; The adjustment range has a negative correlation with the current opening degree; An adjustment module for adjusting the flow regulator based on the adjustment range; The adjustment module is specifically used for: performing an actual adjustment on the flow regulator based on the adjustment range and obtaining the opening degree of the flow regulator after adjustment; taking the adjusted opening degree as the new current opening degree, and jumping to the step of determining the adjustment range of the flow regulator based on the current opening degree to continue execution.

7. A control device, characterized in that, It includes a memory and a processor. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the liquid-cooled CDU flow regulator control method according to any one of claims 1 to 5.

8. A liquid cooling system, characterized in that, It includes a flow regulator and the control device according to claim 7; the flow regulator is controlled by the control device.

9. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it realizes the steps of the liquid-cooled CDU flow regulator control method according to any one of claims 1 to 5.

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