Liquid cooling CDU flow regulator control method, device, equipment, system and medium

Abstract

The invention provides a liquid cooling CDU flow regulator control method, device, equipment, system and medium, and belongs to the technical field of liquid cooling heat dissipation. The control method for the liquid cooling CDU flow regulator can comprise the following steps: acquiring the current opening degree of the flow regulator; based on the current opening degree, the adjusting amplitude of a flow adjuster is determined; the adjusting amplitude is in negative correlation with the current opening degree; and adjusting the flow regulator based on the adjustment amplitude. When the opening degree of the flow regulator is small, the large regulation amplitude can be used for regulation, the regulation frequency can be reduced, frequent shaking regulation is avoided, abrasion of the flow regulator is reduced, the control precision of the flow regulator is prevented from being affected, rapid regulation can be achieved, the response speed is increased, and the regulation stability is enhanced; the reliability of the liquid cooling system is improved; when the opening degree of the flow regulator is large, a small regulation range is used for regulation, the regulation precision can be improved, and the effect of precise regulation is achieved.

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: Get the current opening degree of the flow regulator; 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; Based on the adjustment range, the flow regulator is adjusted.

[0007] In a possible implementation, determining the adjustment amplitude of the flow regulator based on the current opening degree includes: according to , determine the adjustment range of the flow regulator ;in, is the current opening degree, is the first constant, , is the second constant.

[0008] In a possible implementation, adjusting the flow regulator based on the adjustment amplitude includes: Obtaining 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, the flow regulator is adjusted based on the adjustment range; If the absolute value is smaller than the adjustment range, the flow regulator is controlled to maintain the current opening degree.

[0009] In a possible implementation, if the absolute value is greater than or equal to the adjustment amplitude, the flow regulator is adjusted based on the adjustment amplitude, including: If the absolute value is greater than or equal to the adjustment amplitude, the flow regulator is adjusted in a direction of reducing the gap with the target opening degree based on the adjustment amplitude.

[0010] In a possible implementation, adjusting the flow regulator based on the adjustment amplitude includes: Obtaining a theoretical opening degree after a virtual adjustment of the flow regulator based on the adjustment amplitude; If the theoretical opening degree is greater than the maximum opening degree of the flow regulator, the opening degree of the flow regulator is adjusted to the maximum opening degree; If the theoretical opening degree is less than the minimum opening degree of the flow regulator, the opening degree of the flow regulator is 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 is adjusted to the theoretical opening degree.

[0011] In a possible implementation, adjusting the flow regulator based on the adjustment amplitude includes: Based on the adjustment range, the flow regulator is actually adjusted once, and the opening degree of the flow regulator after adjustment is obtained; The adjusted opening degree is used as the new current opening degree, and the process jumps to the step of determining the adjustment amplitude of the flow regulator based on the current opening degree and continues to execute.

[0012] In a second aspect, an embodiment of the present invention provides a liquid-cooled CDU flow regulator control device, comprising: An acquisition module, used to obtain the current opening degree of the flow regulator; The adjustment range determination module is used to determine the adjustment range of the flow regulator based on the current opening degree; the adjustment range is negatively correlated with the current opening degree; The regulating module is used for regulating the flow regulator based on the regulating amplitude.

[0013] In a third aspect, an embodiment of the present invention provides a control device, including a processor and a memory, the memory being used to store a computer program, and the processor being used to call and run the computer program stored in the memory to execute the liquid-cooled CDU flow regulator control method as described in the first aspect or any possible implementation of the first aspect.

[0014] In a fourth aspect, an embodiment of the present invention provides a liquid cooling system, comprising a flow regulator and a control device as described in the third aspect; the flow regulator is controlled by the control device.

[0015] In a fifth aspect, an embodiment of the present invention provides a computer-readable storage medium, wherein 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 as described in the first aspect or any possible implementation method of the first aspect are implemented.

[0016] The embodiment of the present invention provides a liquid-cooled CDU flow regulator control method, device, equipment, system and medium. The method determines the adjustment amplitude of the flow regulator based on the current opening degree of the flow regulator, and adjusts the flow regulator with the adjustment amplitude, wherein the adjustment amplitude is negatively correlated with the current opening degree, that is, the larger the current opening degree of the flow regulator, the smaller the adjustment amplitude, and the smaller the current opening degree of the flow regulator, the larger the adjustment amplitude. Therefore, when the opening degree of the flow regulator is small, a larger adjustment amplitude 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 realize fast adjustment, improve response speed, enhance adjustment stability, and improve the reliability of the liquid cooling system; when the opening degree of the flow regulator is large, a smaller adjustment amplitude can be used for adjustment, which can improve the adjustment accuracy and achieve the effect of precise adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1is a flow chart of an implementation method of a liquid-cooled CDU flow regulator control method provided by an embodiment of the present invention; Figure 2 is a schematic diagram of a liquid-cooled CDU flow regulator control device provided by an embodiment of the present invention; Figure 3 is a schematic diagram of a control device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0019] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present invention.

[0020] In order to make the purpose, technical solutions and advantages of the present invention more clear, specific embodiments will be described below in conjunction with the accompanying drawings.

[0021] See also Figure 1 , which shows a flow chart for implementing a liquid-cooled CDU (Coolant Distribution Unit) flow regulator control method provided by an embodiment of the present invention, and the execution subject of the liquid-cooled CDU flow regulator control method is a control device. The control device may be a controller, such as a DSP (Digital Signal Processor) or other controller, or may be a controller in a liquid cooling system, and so on.

[0022] The above liquid-cooled CDU flow regulator control method is described in detail as follows: In S101 , the current opening degree of the flow regulator is obtained.

[0023] The flow regulator may be a device for regulating the flow of coolant in the liquid cooling system, and may be, for example, a valve, such as various types of electric valves or manual valves, and the like.

[0024] In the embodiment of the present application, there is no specific restriction on the method of obtaining the current opening degree of the flow regulator, and any feasible method is acceptable. For example, a high-precision potentiometer sensor can be used, which can accurately feedback the resistance change as the flow regulator valve stem 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 of the coolant, and then the opening degree of the flow regulator can be inferred based on the flow characteristic curve of the flow regulator and the measured flow; a pressure sensor can also be installed before and after the flow regulator to measure the pressure before and after the flow regulator, and the pressure difference can be calculated. Based on the pressure difference and the corresponding formula or model, the current opening degree of the flow regulator can be inferred; etc. Among them, the opening degree of the flow regulator is the degree of opening of the flow regulator, which can also be called the opening degree or opening degree of the flow regulator, etc.

[0025] In S102, based on the current opening degree, the adjustment amplitude of the flow regulator is determined; the adjustment amplitude is negatively correlated with the current opening degree.

[0026] The embodiment of the present application can determine the adjustment amplitude of the flow regulator 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 of the flow regulator for one adjustment, which can also be called the adjustment step or the adjustment increase or decrease, etc. For example, if the current opening degree is A and the adjustment amplitude is B, 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 AB.

[0027] 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.

[0028] Specifically, when the flow regulator is in a state of large opening, it means that the liquid cooling system is in a stage where the demand for coolant flow is relatively large. For example, when the liquid cooling system of a large data center or a large intelligent computing center is just started or encounters a high-intensity computing load that causes the server to heat up severely, the coolant needs to flow quickly and in large quantities through various heat dissipation parts. At this time, the flow regulator is opened to a large degree, and accordingly, the adjustment range will be smaller. This is because the liquid cooling system is already close to the maximum flow delivery state. If the adjustment range is too large, it is very easy to cause excessive fluctuations in the flow, which in turn leads to an imbalance in temperature control. Therefore, in order to ensure that the coolant flow can be fine-tuned smoothly and accurately based on the large opening, the adjustment range must be reduced.

[0029] On the contrary, when the flow regulator is in a small opening state, such as when the liquid cooling system load is small, the equipment generates limited heat, and the coolant only needs a small amount and slow flow to meet the heat dissipation requirements, the liquid cooling system needs to quickly adjust the flow regulator state 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 have a subversive impact on the overall flow and temperature control of the system. On the contrary, it can speed up the adjustment speed and quickly and accurately let the flow regulator reach the ideal small opening, so the adjustment range is often larger at this time.

[0030] In short, this negative correlation between the adjustment amplitude and the current opening degree 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.

[0031] In S103, the flow regulator is adjusted based on the adjustment amplitude.

[0032] After determining the adjustment range based on the current opening degree, if an adjustment instruction is received, or the flow regulator needs to be adjusted based on the liquid cooling demand, the flow regulator is controlled to adjust in the direction close to the target opening degree according to the adjustment range. The target opening degree refers to the opening degree to which the flow regulator needs to be adjusted.

[0033] It should be noted that the adjustment range is not fixed. When the current opening degree of the flow regulator changes, the adjustment range also changes accordingly. In other words, the adjustment range needs to be recalculated every time an adjustment is made.

[0034] The embodiment of the present application obtains the current opening degree of the flow regulator, determines the adjustment amplitude of the flow regulator based on the current opening degree of the flow regulator, and adjusts the flow regulator with the adjustment amplitude, wherein the adjustment amplitude is negatively correlated with the current opening degree, that is, the larger the current opening degree of the flow regulator, the smaller the adjustment amplitude, and the smaller the current opening degree of the flow regulator, the larger the adjustment amplitude. Therefore, when the opening degree of the flow regulator is small, a larger adjustment amplitude 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 extend the service life, and can achieve fast adjustment, improve response speed, and enhance adjustment stability; when the opening degree of the flow regulator is large, a smaller adjustment amplitude can be used for adjustment, which can improve the adjustment accuracy and achieve the effect of precise adjustment; the method provided in the embodiment of the present application can improve the control accuracy of the flow regulator, and thus improve the reliability of the liquid cooling system.

[0035] The above embodiment briefly introduces the implementation process of the liquid-cooled CDU flow regulator control method, and each step in the above liquid-cooled CDU flow regulator control method will be described in detail below. First, the implementation method of the above S102 is specifically described, and the detailed introduction is as follows.

[0036] In some embodiments, determining the adjustment amplitude of the flow regulator based on the current opening degree may include: according to , determine the adjustment range of the flow regulator ;in, is the current opening degree, is the first constant, , is the second constant.

[0037] 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].

[0038] and The value of can be determined according to actual needs and / or relevant experience. For example, 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, and so on.

[0039] Based on the calculation formula of the above adjustment range, it can be known that at the current opening degree When increasing, adjust the amplitude Reduce, at the current opening When decreasing, adjust the amplitude Increase.

[0040] In the stage of small opening of the flow regulator, a large adjustment range is used for rapid adjustment, which can quickly make the liquid cooling system reach a state close to the target, avoiding the problem of slow adjustment speed and frequent jitter due to too small adjustment range at small opening. In the stage of large opening of the flow regulator, a small adjustment range is used for precise adjustment to ensure that the liquid cooling system can accurately reach the target state and improve control accuracy.

[0041] The implementation of S103 is described in detail below.

[0042] In some embodiments, adjusting the flow regulator based on the adjustment amplitude may include: Obtaining 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, the flow regulator is adjusted based on the adjustment range; If the absolute value is smaller than the adjustment range, the flow regulator is controlled to maintain the current opening degree.

[0043] 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.

[0044] In the embodiment 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 amplitude, if the absolute value is greater than or equal to the adjustment amplitude, it means that the opening degree to be adjusted is larger, greater than or equal to the adjustment amplitude, and the flow regulator can be adjusted at this time; if the absolute value is less than the adjustment amplitude, it means that the opening degree to be adjusted is smaller, less than the adjustment amplitude, and the opening degree after adjustment exceeds the target opening degree, then the flow regulator will not be adjusted, so that the flow regulator maintains the current opening degree unchanged. In this way, frequent adjustments caused by small fluctuations can be avoided, the number of actions of the flow regulator can be reduced, and the control complexity and energy consumption can be reduced to a certain extent.

[0045] The embodiment of the present application sets a certain opening adjustment range by adjusting the amplitude. When the target opening of the flow regulator fluctuates within this range, the control instruction will not be updated, that is, the opening of the flow regulator will not be adjusted to keep the current opening. Only when the target opening of the flow regulator exceeds this range will the control instruction be updated to adjust the opening of the flow regulator. Similar to hysteresis control, when the opening of the flow regulator changes slightly, due to the existence of hysteresis, the control device will not respond to these small changes immediately, but will adjust after the changes accumulate to a certain extent and exceed the hysteresis range, thereby effectively avoiding the problem of frequent jitter adjustment when the opening changes slightly and improving stability.

[0046] In some embodiments, if the absolute value is greater than or equal to the adjustment amplitude, the flow regulator is adjusted based on the adjustment amplitude, including: If the absolute value is greater than or equal to the adjustment amplitude, the flow regulator is adjusted in a direction of reducing the gap with the target opening degree based on the adjustment amplitude.

[0047] In the embodiment of the present application, since the opening degree of the flow regulator needs to be adjusted to the target opening degree, when the opening degree of the flow regulator needs to be adjusted, it is necessary to adjust in the direction of reducing the gap with the target opening degree. For example, if the target opening degree is greater than the current opening degree, the opening degree is increased, and if the target opening degree is less than the current opening degree, the opening degree is decreased.

[0048] In some embodiments, the flow regulator is adjusted based on the adjustment amplitude, including: Obtaining a theoretical opening degree after a virtual adjustment of the flow regulator based on the adjustment amplitude; If the theoretical opening degree is greater than the maximum opening degree of the flow regulator, the opening degree of the flow regulator is adjusted to the maximum opening degree; If the theoretical opening degree is less than the minimum opening degree of the flow regulator, the opening degree of the flow regulator is 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 is adjusted to the theoretical opening degree.

[0049] Among them, virtual regulation means that there is no actual adjustment on the flow regulator. The purpose of virtual regulation is only to calculate the opening degree after an adjustment based on the adjustment amplitude, but no actual adjustment is made to the flow regulator.

[0050] If the flow regulator is adjusted in the direction of increasing the opening degree, the above 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 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 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.

[0051] Since the opening degree of the flow regulator has a maximum opening degree and a minimum opening degree, each time the flow regulator is adjusted, it is necessary to consider whether the theoretical opening degree is greater than the maximum opening degree of the flow regulator or whether it is 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 the 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 the 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 the theoretical opening degree is less than or equal to the maximum opening degree, the opening degree of the flow regulator can be adjusted to the theoretical opening degree.

[0052] 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 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. No specific restrictions are made here, but the minimum opening degree of the flow regulator is less than the maximum opening degree of the flow regulator.

[0053] In some embodiments, the flow regulator is adjusted based on the adjustment amplitude, including: Based on the adjustment range, the flow regulator is actually adjusted once, and the opening degree of the flow regulator after adjustment is obtained; The adjusted opening degree is used as the new current opening degree, and the process jumps to the step of determining the adjustment amplitude of the flow regulator based on the current opening degree and continues to execute.

[0054] The above-mentioned adjusted opening degree is the opening degree after an actual adjustment of the flow regulator based on the adjustment range.

[0055] If the flow regulator is adjusted in the direction of increasing the opening degree, the above-adjusted opening degree is the current opening degree plus the opening degree after the adjustment amplitude; if the flow regulator is adjusted in the direction of decreasing the opening degree, the above-adjusted opening degree is the current opening degree minus the opening degree after the adjustment amplitude. Among them, the adjustment direction can be determined according to 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.

[0056] After each actual adjustment of the opening degree of the flow regulator, it is necessary to redetermine the current opening degree, and redetermine the adjustment range based on the current opening degree, and continue to adjust until the opening degree of the flow regulator is adjusted to the target opening degree or close to the target opening degree.

[0057] Based on the above detailed description of S103, in a possible implementation manner, the above S103 may include: Obtaining 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 amplitude, then based on the adjustment amplitude, an actual adjustment is performed in the direction of reducing the gap with the target opening degree, and the adjusted opening degree of the flow regulator is obtained; the adjusted opening degree is used as the new current opening degree, and the process jumps to the step of determining the adjustment amplitude of the flow regulator based on the current opening degree and continues to be executed until the opening degree of the flow regulator is adjusted to the target opening degree or the absolute value is less than the adjustment amplitude; If the absolute value is smaller than the adjustment range, the flow regulator is controlled to maintain the current opening degree.

[0058] The detailed description of this implementation mode can be found in the description of the aforementioned embodiment, and will not be described in detail here.

[0059] It should be understood that the order of execution of the steps in the above embodiment does not necessarily mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present invention.

[0060] 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 explanation, only the part related to the embodiment of the present invention is shown, which is described in detail as follows: like Figure 2 As shown, the liquid-cooled CDU flow regulator control device 30 includes: an acquisition module 31 , a regulation amplitude determination module 32 and a regulation module 33 .

[0061] An acquisition module 31 is used to acquire the current opening degree of the flow regulator; 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 is negatively correlated with the current opening degree; The regulating module 33 is used to regulate the flow regulator based on the regulating amplitude.

[0062] In a possible implementation, the adjustment amplitude determination module 32 may be specifically configured to: according to , determine the adjustment range of the flow regulator ;in, is the current opening degree, is the first constant, , is the second constant.

[0063] In a possible implementation, the adjustment module 33 may be specifically configured to: Obtaining 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, the flow regulator is adjusted based on the adjustment range; If the absolute value is smaller than the adjustment range, the flow regulator is controlled to maintain the current opening degree.

[0064] In a possible implementation, in the adjustment module 33, if the absolute value is greater than or equal to the adjustment amplitude, the flow regulator is adjusted based on the adjustment amplitude, including: If the absolute value is greater than or equal to the adjustment amplitude, the flow regulator is adjusted in a direction of reducing the gap with the target opening degree based on the adjustment amplitude.

[0065] In a possible implementation, the adjustment module 33 may be specifically configured to: Obtaining a theoretical opening degree after a virtual adjustment of the flow regulator based on the adjustment amplitude; If the theoretical opening degree is greater than the maximum opening degree of the flow regulator, the opening degree of the flow regulator is adjusted to the maximum opening degree; If the theoretical opening degree is less than the minimum opening degree of the flow regulator, the opening degree of the flow regulator is 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 is adjusted to the theoretical opening degree.

[0066] In a possible implementation, the adjustment module 33 may be specifically configured to: Based on the adjustment range, the flow regulator is actually adjusted once, and the opening degree of the flow regulator after adjustment is obtained; The adjusted opening degree is used as the new current opening degree, and the process jumps to the step of determining the adjustment amplitude of the flow regulator based on the current opening degree and continues to execute.

[0067] Figure 3 Schematic diagram of a control device provided by an embodiment of the present invention. Figure 3 As 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 to perform the steps in the above-mentioned embodiments of the liquid-cooled CDU flow regulator control method, such as Figure 1Alternatively, 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, for example Figure 2 The functions of each module are shown.

[0068] Exemplarily, the computer program 42 may be divided into one or more modules / units, which are stored in the memory 41 and executed by the processor 40 to implement the present invention. The one or more modules / units may be a series of computer program instruction segments capable of implementing specific functions, which are used to describe the execution process of the computer program 42 in the control device 4. For example, the computer program 42 may be divided into Figure 2 The modules shown.

[0069] The control device 4 may include, but is not limited to, a processor 40 and a memory 41. Those skilled in the art will appreciate that Figure 3 It is only an example of the control device 4 and does not constitute a limitation of the control device 4. It may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, the control device may also include input and output devices, network access devices, buses, etc.

[0070] The processor 40 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc.

[0071] The memory 41 may be an internal storage unit of the control device 4, such as a 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, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the control device 4. Further, the memory 41 may also include both an internal storage unit and an 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.

[0072] Corresponding to the above-mentioned control device, an embodiment of the present invention further provides a liquid cooling system, comprising the above-mentioned flow regulator and the above-mentioned control device; the flow regulator is controlled by the control device.

[0073] For the relevant description of the liquid cooling system, please refer to the description in the aforementioned embodiment and will not be repeated here.

[0074] 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-cooled CDU flow regulator control methods are implemented.

[0075] An embodiment of the present application further provides a computer program product, including a computer program, which, when executed by a processor, implements any of the above liquid-cooled CDU flow regulator control methods.

[0076] The technicians in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional units and modules as needed, 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. The functional units and modules in the embodiment can be integrated in a processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, which will not be repeated here.

[0077] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0078] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0079] In the embodiments provided by the present invention, it should be understood that the disclosed devices / control equipment and methods can be implemented in other ways. For example, the device / control equipment embodiments described above are only schematic. For example, the division of the modules or units is only a logical function division. There may be other division methods in actual implementation, such as 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 mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0080] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0081] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, 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 software functional units.

[0082] If the integrated module / unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present invention implements all or part of the processes in the above-mentioned embodiment method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by the processor, the steps of the above-mentioned liquid-cooled CDU flow regulator control method embodiments can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may include: any entity or device that can carry the computer program code, recording medium, U disk, mobile hard disk, disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signal, telecommunication signal and software distribution medium. It should be noted that the content contained in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practices in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practices, computer-readable media does not include electrical carrier signals and telecommunication signals.

[0083] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included in the protection scope of the present invention.

Claims

1. A liquid-cooled CDU flow regulator control method, characterized in that: include: Get the current opening degree of the flow regulator; Based on the current opening degree, determining the adjustment amplitude of the flow regulator; The adjustment amplitude is negatively correlated with the current opening degree; Based on the adjustment amplitude, the flow regulator is adjusted.

2. The liquid-cooled CDU flow regulator control method according to claim 1, characterized in that: The step of determining the adjustment amplitude of the flow regulator based on the current opening degree includes: according to , determine the adjustment range of the flow regulator ;in, 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 amplitude includes: Obtaining a target opening degree of the flow regulator; Calculating an absolute value of a difference between the target opening degree and the current opening degree; If the absolute value is greater than or equal to the adjustment amplitude, adjusting the flow regulator based on the adjustment amplitude; If the absolute value is smaller than the adjustment amplitude, the flow regulator is controlled to maintain the current opening degree.

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

5. The liquid-cooled CDU flow regulator control method according to claim 1, characterized in that: The adjusting the flow regulator based on the adjustment amplitude includes: Obtaining a theoretical opening degree after a virtual adjustment of the flow regulator based on the adjustment amplitude; If the theoretical opening degree is greater than the maximum opening degree of the flow regulator, adjusting 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, adjusting 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, the opening degree of the flow regulator is adjusted to the theoretical opening degree.

6. The liquid-cooled CDU flow regulator control method according to any one of claims 1 to 5, characterized in that: The adjusting the flow regulator based on the adjustment amplitude includes: Based on the adjustment amplitude, the flow regulator is actually adjusted once, and the opening degree of the flow regulator after adjustment is obtained; The adjusted opening degree is used as the new current opening degree, and the process jumps to the step of determining the adjustment amplitude of the flow regulator based on the current opening degree and continues to execute.

7. A liquid-cooled CDU flow regulator control device, characterized in that: include: An acquisition module, used to obtain the current opening degree of the flow regulator; An adjustment amplitude determination module, used to determine the adjustment amplitude of the flow regulator based on the current opening degree; The adjustment amplitude is negatively correlated with the current opening degree; The regulating module is used to regulate the flow regulator based on the regulating amplitude.

8. A control device, characterized in that: It comprises a memory and a processor, wherein 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 6.

9. A liquid cooling system, characterized in that: It comprises a flow regulator and a control device as claimed in claim 8; the flow regulator is controlled by the control device.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the liquid-cooled CDU flow regulator control method according to any one of claims 1 to 6 are implemented.

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