Liquid cooling dynamic regulation control method, system and device with load feedback

Abstract

The invention relates to a liquid cooling dynamic regulation control method, system and device with load feedback, and belongs to the technical field of liquid cooling distribution. Comprising the following steps: S1, acquiring inlet and outlet liquid temperature and real-time power consumption data of each to-be-cooled device in real time; s2, the inlet and outlet liquid temperature of each device is compared with a safe temperature threshold value, and the rotating speed of a water pump on the secondary side is dynamically adjusted according to the comparison result; when the inlet and outlet liquid temperature is close to the safe temperature threshold value, the heat dissipating capacity of each device is calculated according to the inlet and outlet liquid temperature and the real-time power consumption data; adjusting the rotating speed of the water pump according to the heat dissipating capacity; wherein when the S1 is executed, a fluid channel, used for heat exchange of the secondary side, in the primary side is set to be at the fixed opening degree, and the water temperature of the primary side is obtained in real time; and when it is detected that the water temperature of the primary side is abnormal or breaks down, the state of the fluid channel is automatically switched to the bypass mode. Dynamic adjustment of the rotating speed of the water pump is achieved, dependence on the total liquid return temperature is not needed, the cooling efficiency is improved, and energy consumption is reduced.

Description

Technical Field

[0001] The present invention relates to the field of liquid cooling distribution technology, and in particular to a liquid cooling dynamic adjustment control method, system and device with load feedback. Background Art

[0002] Existing liquid cooling distribution units typically employ a simplified control logic. Its core principle is to monitor only the temperature of the mixed coolant via temperature sensors located at the supply / return ports on the secondary side of the liquid cooling distribution unit, thereby indirectly determining the overall cooling requirements of the server cluster. Furthermore, since the actual temperature and power consumption of individual servers cannot be determined, the system defaults to setting cooling parameters based on the worst-case scenario (assuming all servers are fully loaded). This causes the water pump to run at its highest speed for extended periods of time to ensure adequate cooling for the server even in extreme conditions.

[0003] However, as data centers expand and operating environments become more complex, the drawbacks of this control method are becoming increasingly apparent. First, relying solely on the combined total return temperature for judgment can easily lead to a "temperature masking effect." For example, when multiple servers operate in parallel, if one server experiences a high load, resulting in an elevated outlet temperature, while other servers experience lower loads and lower outlet temperatures, the combined total return temperature can mask the risk of overheating in a single server. Second, energy waste is a significant issue. The primary energy consumption of the liquid cooling distribution unit comes from the water pump. Running the pump at high speed for extended periods not only wastes significant energy but also accelerates wear, shortening its service life. Furthermore, actual data center loads fluctuate significantly (typically between 30% and 70%), yet traditional solutions are unable to dynamically adjust pump speed based on load, resulting in inefficient energy consumption exceeding 60% at low loads. Finally, the liquid cooling distribution system suffers from significant rigidity. Feedback control based on the total return temperature suffers from lag, making it difficult to respond promptly to sudden load changes. This can cause critical servers to throttle due to insufficient cooling, impacting normal operation. Summary of the Invention

[0004] To this end, the technical problem to be solved by the present invention is to overcome the problems in the prior art such as the shortened hardware life caused by long-term over-temperature operation of high-load servers, the energy waste caused by long-term high-speed operation of water pumps, and the rigidity of the liquid cooling distribution system caused by reliance on the total return liquid temperature.

[0005] In a first aspect, to solve the above technical problems, the present invention provides a liquid cooling dynamic adjustment control method with load feedback, comprising:

[0006] S1. Obtain the inlet and outlet liquid temperatures and real-time power consumption data of each device to be cooled in real time;

[0007] S2. Compare the inlet and outlet liquid temperatures of each device to be cooled with the safety temperature threshold, and dynamically adjust the water pump speed on the secondary side based on the comparison result; when the inlet and outlet liquid temperatures are higher than the safety temperature threshold, increase the water pump speed to make the inlet and outlet liquid temperatures approach the safety temperature threshold; otherwise, reduce the water pump speed; wherein the safety temperature threshold is set according to the required temperature of each device to be cooled.

[0008] In one embodiment of the present invention, while executing S1, the heat exchange efficiency of the primary side used for exchanging heat on the secondary side reaches a maximum value, and the method for obtaining the maximum value is: setting the fluid channel on the primary side to a fixed opening, and obtaining the water temperature of the primary side in real time; when it is detected that the water temperature on the primary side is abnormal or a fault occurs, the state of the fluid channel is automatically switched to bypass mode.

[0009] In a second aspect, to solve the above technical problems, the present invention provides a liquid cooling dynamic adjustment control system with load feedback, comprising:

[0010] The acquisition module is used to obtain the inlet and outlet liquid temperatures and real-time power consumption data of each device to be cooled in real time;

[0011] The control module is used to compare the inlet and outlet liquid temperatures of each device to be cooled with a safety temperature threshold, and dynamically adjust the water pump speed on the secondary side according to the comparison result; when the inlet and outlet liquid temperatures are higher than the safety temperature threshold, the water pump speed is increased to make the inlet and outlet liquid temperatures approach the safety temperature threshold; otherwise, the water pump speed is reduced; wherein the safety temperature threshold is set according to the required temperature of each device to be cooled.

[0012] In one embodiment of the present invention, the method by which the acquisition module obtains the real-time power consumption data of the device to be cooled includes communicating with the device to be cooled using a network protocol, wherein the network protocol includes the redfish protocol, the IPMI protocol, the MQTT protocol, and the HTTP protocol.

[0013] In one embodiment of the present invention, the method in which the acquisition module obtains the real-time power consumption data of the device to be cooled further comprises communicating via a bus, and the protocols supported by the bus communication include RS485 protocol and CAN protocol.

[0014] In a third aspect, in order to solve the above technical problems, the present invention provides a liquid-cooled dynamic adjustment device with load feedback, including a controller, and the controller includes the above-mentioned liquid-cooled dynamic adjustment control system with load feedback.

[0015] In one embodiment of the present invention, it further includes a primary side unit, a heat exchanger and a secondary side unit; the primary side unit and the secondary side unit exchange heat through the heat exchanger; wherein the primary side unit includes a first flow meter and a three-way valve; the first flow meter is connected to the three-way valve.

[0016] In one embodiment of the present invention, the secondary side unit includes a second flow meter, a bypass valve, a liquid storage tank, a filter and a water pump assembly; the second flow meter is connected to the bypass valve, the bypass valve is connected to the liquid storage tank, the liquid storage tank is connected to the filter, and the filter is connected to the water pump assembly.

[0017] In one embodiment of the present invention, the water pump assembly includes a first water pump assembly and a second water pump assembly connected in parallel, and the first water pump assembly and the second water pump assembly each include a connected water pump and a one-way valve.

[0018] In a fourth aspect, in order to solve the above technical problems, the present invention provides a cabinet comprising the above-mentioned liquid cooling dynamic adjustment device with load feedback.

[0019] The above technical solution of the present invention has the following beneficial effects compared with the prior art:

[0020] (1) The present invention describes a method, system, and device for dynamic liquid cooling control with load feedback. By collecting real-time data on the inlet and outlet liquid temperatures and power consumption of each device to be cooled, the method accurately calculates the device's heat dissipation, thereby accurately understanding its heat dissipation requirements. This method effectively addresses the issue of shortened hardware lifespans in high-load servers due to long-term over-temperature operation, while also overcoming the rigid distribution problem caused by traditional liquid cooling systems relying on total return liquid temperature for distribution.

[0021] (2) The present invention dynamically adjusts the water pump speed based on the calculated heat dissipation, accurately matching the cooling capacity provided by the cooling system with the heat dissipation requirements of the equipment, avoiding situations where there is excess or insufficient cooling capacity, and significantly improving cooling efficiency. Furthermore, the dynamic adjustment of the water pump speed allows the water pump to flexibly adjust its operating state based on actual heat dissipation requirements, avoiding the high energy consumption caused by the water pump always running at a fixed high speed in traditional systems, thereby achieving energy conservation and consumption reduction.

[0022] (3) The present invention sets the opening of the primary-side three-way valve to a fixed value and monitors the primary-side water temperature in real time. Once an abnormal water temperature or malfunction is detected, the system automatically switches the three-way valve to bypass mode. This mechanism not only ensures the proper distribution of cooling water within the system, further improving cooling efficiency, but also enhances system stability and reliability.

[0023] (4) By acquiring real-time equipment operating data and cooling system status information, the present invention can promptly identify potential fault hazards and quickly take measures to address them. This rapid response mechanism effectively avoids equipment damage caused by cooling system failures, significantly enhances the reliability of the entire system, and provides a strong guarantee for the stable operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings, wherein:

[0025] Figure 1 This is a flow chart of a liquid cooling dynamic adjustment control method with load feedback in a preferred embodiment of the present invention;

[0026] Figure 2 This is a communication diagram of the device to be cooled in a preferred embodiment of the present invention;

[0027] Figure 3 This is a structural axial diagram of a liquid-cooled dynamic adjustment device with load feedback in a preferred embodiment of the present invention;

[0028] Figure 4 A top view of the structure of a liquid-cooled dynamic adjustment device with load feedback in a preferred embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of a liquid-cooled dynamic adjustment device with load feedback in a preferred embodiment of the present invention;

[0030] Figure 6 This is a cabinet structure diagram in a preferred embodiment of the present invention.

[0031] Explanation of the reference numerals in the specification: 1. Controller; 2. Water pump; 3. Three-way valve; 4. Liquid storage tank; 5. Collection module; 6. Bypass valve; 7. Power module. DETAILED DESCRIPTION

[0032] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0033] Example 1

[0034] Reference Figure 1 As shown, an embodiment of the present invention provides a liquid cooling dynamic adjustment control method with load feedback, including but not limited to the following steps:

[0035] S1. Obtain the inlet and outlet liquid temperatures and real-time power consumption data of each device to be cooled in real time;

[0036] S2. Compare the inlet and outlet liquid temperatures of each device to be cooled with the safety temperature threshold, and dynamically adjust the water pump speed on the secondary side based on the comparison result; when the inlet and outlet liquid temperatures are higher than the safety temperature threshold, increase the water pump speed to make the inlet and outlet liquid temperatures approach the safety temperature threshold; otherwise, reduce the water pump speed; the safety temperature threshold is set according to the required temperature of each device to be cooled.

[0037] An embodiment of the present invention provides a liquid cooling dynamic adjustment and control method with load feedback. By acquiring the inlet and outlet liquid temperatures and real-time power consumption data of each device to be cooled in real time and calculating the heat dissipation accordingly, the actual heat dissipation requirements of the device can be accurately grasped, thereby avoiding the shortened hardware life caused by long-term over-temperature operation of high-load servers and the rigidity of the liquid cooling distribution system caused by dependence on the total return liquid temperature. This method then dynamically adjusts the water pump speed according to the heat dissipation, so that the cooling capacity provided by the cooling system matches the heat dissipation requirements of the device, avoiding the situation of excess or insufficient cooling capacity, thereby improving cooling efficiency. At the same time, the dynamic adjustment of the water pump speed can be adjusted according to the actual heat dissipation requirements, avoiding the water pump always running at a fixed high speed, thereby reducing unnecessary energy consumption and solving the problem of blindly high energy consumption of traditional systems.

[0038] Specifically, in step S1, each device to be cooled is connected to the load end of the Cooling Distribution Unit (CDU). These devices to be cooled include but are not limited to: servers equipped with BMC (Baseboard Management Controller, BMC) modules, smart devices with energy consumption monitoring modules, and ordinary devices. Figure 2 As shown, the methods for obtaining energy consumption data are different for different types of equipment. For servers equipped with BMC modules, the BMC module of the server can be accessed through a network switch, and its energy consumption data can be collected using Redfish or IPMI (Intelligent Platform Management Interface, IPMI for short) protocols, mainly including information such as temperature and power usage. For smart devices with energy consumption modules, their energy consumption modules can be accessed through the network, and energy consumption data can be collected through MQTT (Message Queuing Telemetry Transport, MQTT for short) or HTTP (Hypertext Transfer Protocol, HTTP for short) protocols. For ordinary equipment, energy consumption data can be collected through external electricity meters and thermometers, and with the help of protocols such as RS232 / RS485 / Modbus.

[0039] Specifically, while executing step S1, the heat exchange efficiency of the primary side used for exchanging heat on the secondary side reaches a maximum value. The method for obtaining the maximum value is: setting the fluid channel on the primary side to a fixed opening and obtaining the water temperature of the primary side in real time; when an abnormal water temperature or a fault is detected on the primary side, the state of the fluid channel is automatically switched to the bypass mode.

[0040] The primary-side fluid channel is set to a fixed opening, and the primary-side water temperature is monitored in real time. If an abnormality is detected, the system switches to bypass mode. This ensures optimal distribution of cooling water within the system, further enhancing cooling efficiency. Furthermore, real-time access to equipment operating data and cooling system status information enables timely identification of potential faults. This rapid response mechanism effectively prevents equipment damage caused by cooling system failures and enhances overall system reliability.

[0041] Further, refer to Figure 3 In an embodiment of the present invention, a three-way valve 3 is preferably used as the fluid channel on the primary side. Under normal operating conditions, the three-way valve 3 on the primary side is locked at a fixed opening of 100% to ensure that all the incoming water from the cooling tower flows through the plate heat exchanger, thereby maximizing the heat exchange efficiency on the primary side. The three-way valve 3 will only switch to the bypass mode when an abnormal water temperature on the primary side is detected (for example, the water temperature on the primary side is lower than the set temperature value) or a system failure occurs. The bypass mode means that the fluid (the fluid can be a coolant) channel of the three-way valve 3 is directly connected, so that the fluid bypasses the main heat exchange path and flows directly from the inlet to the outlet, thereby avoiding system damage caused by temperature abnormalities or failures and ensuring the safe operation of the system.

[0042] Specifically, for step S2, the specific steps of dynamically adjusting the water pump speed are:

[0043] S210: Setting a safe temperature threshold for liquid supply and return of a liquid cooling distribution unit according to the temperature required by each device to be cooled.

[0044] S220. Compare the collected inlet and outlet liquid temperatures of the device to be cooled with the safety temperature threshold. When the temperature of the device to be cooled is higher than the available safety temperature threshold, increase the speed of the water pump to reduce the temperature of the device to be cooled; otherwise, reduce the speed of the water pump. The safety temperature threshold needs to be set according to the operating temperature requirements of the device to be cooled. For example, for some servers, the liquid supply temperature of the liquid cooling system may need to be set between 40°C and 45°C to ensure that the key components of the server can operate within a safe temperature range.

[0045] Furthermore, in step S2, in addition to comparing the inlet and outlet temperatures of each device to be cooled with the safety temperature threshold, a comparative analysis of the power consumption of each device to be cooled is also performed, accurately identifying devices with abnormal power consumption. This dual monitoring mechanism allows for precise identification of devices with abnormal power consumption, providing more comprehensive data support for subsequent troubleshooting and system optimization.

[0046] Furthermore, in step S2, the heat dissipation of each device to be cooled is calculated based on the data obtained in step S1. The specific calculation formula is:

[0047] Q i =m i ·C pi ΔT i ;

[0048] Among them, Q i Indicates the heat dissipation of the i-th device to be cooled, m i represents the fluid mass flow rate of the i-th device to be cooled, C pi represents the specific heat capacity of the fluid in the i-th device to be cooled, ΔT i Represents the inlet and outlet temperature difference of the fluid of the i-th device to be cooled.

[0049] Furthermore, after calculating the heat dissipation of each device to be cooled, the calculated heat dissipation Q i Compare to theoretical values. The theoretical values ​​are calculated using heat balance equations based on parameters such as flow rate, temperature difference, and the specific heat capacity of the coolant. By comparing actual heat dissipation with theoretical values, you can evaluate the efficiency of the cooling system and identify potential heat dissipation issues, thereby optimizing the cooling solution and ensuring stable operation within a safe temperature range.

[0050] Furthermore, the liquid cooling dynamic regulation control method provided in an embodiment of the present invention also includes real-time monitoring of the secondary return water temperature. This design primarily aims to: when the temperature detection function within the device being cooled (such as a server equipped with a BMC module) is lost or fails, monitoring the secondary return water temperature can roughly infer the return water temperature of the entire system. Furthermore, when the device being cooled cannot read temperature data, this monitoring function can serve as a backup solution for general CDU devices, ensuring proper system operation. Traditional CDU control strategies rely solely on the secondary return water temperature for regulation. However, the secondary return water temperature, which is the temperature of the mixed return water from each load device, can be low and does not accurately reflect the actual operating conditions of high-load devices. In this case, the traditional CDU may reduce overall cooling power, causing the temperature of some already high-temperature devices to rise further, leading to overheating, frequency reduction, or even shutdown, ultimately reducing equipment utilization and affecting production efficiency. The embodiments of the present invention utilize a load-side energy consumption collection strategy to obtain energy consumption data for each device, enabling intelligent control. When it is found that the energy consumption data of certain equipment is too high, but the secondary side return water temperature is still within the normal range, the system will aim to reduce the temperature of the high-temperature equipment to a reasonable range, continue to output appropriate cooling power, and protect the high-temperature equipment in a targeted manner, avoiding equipment overheating problems caused by traditional control methods, thereby improving equipment utilization and ensuring production efficiency.

[0051] In order to verify the performance advantages of the embodiment of the present invention, a detailed comparative analysis was conducted between it and the traditional solution. The comparison results are shown in Table 1.

[0052] Table 1 Comparison of technical effects

[0053]

[0054] As shown in Table 1, although traditional solution 1 reduces the risk of local overheating of the server, it requires increasing the water pump power to 100%, which significantly increases energy consumption. Traditional solution 2, while reducing the operating power of the water pump, leads to the frequent risk of local overheating of the server, and cannot guarantee the stable operation of the system. In contrast, this embodiment reduces the operating power of water pump 2 to 70%, or 560W, by optimizing the control strategy. While reducing energy consumption, it completely eliminates the possibility of local overheating of the server, achieving dual optimization of high-efficiency energy saving and system stability. In addition, the traditional solution fails to provide real-time operating status feedback of the server, while this embodiment, by integrating an advanced monitoring system, can obtain the server's operating power consumption data in real time. This real-time feedback is crucial for monitoring system performance, predicting maintenance needs, and optimizing energy use.

[0055] Example 2

[0056] Based on the same inventive concept, this embodiment provides a liquid cooling dynamic adjustment control system with load feedback. The principle of solving the problem is similar to the liquid cooling dynamic adjustment control method with load feedback provided in Example 1, and the repeated parts will not be repeated.

[0057] This embodiment provides a liquid cooling dynamic adjustment control system with load feedback, including:

[0058] Acquisition module 5, used to obtain the inlet and outlet liquid temperatures and real-time power consumption data of each device to be cooled in real time;

[0059] The control module is used to compare the inlet and outlet liquid temperatures of each device to be cooled with the safety temperature threshold, and dynamically adjust the speed of the secondary side water pump 2 based on the comparison result; when the inlet and outlet liquid temperatures are higher than the safety temperature threshold, the water pump speed is increased to make the inlet and outlet liquid temperatures approach the safety temperature threshold; otherwise, the water pump speed is reduced; the safety temperature threshold is set according to the required temperature of each device to be cooled.

[0060] Specifically, the method by which the acquisition module 5 obtains the real-time power consumption data of the equipment to be cooled includes two types of acquisition protocols: TCP network and bus type. The TCP network protocol is mainly oriented towards Internet of Things scenarios and is suitable for equipment that requires remote monitoring and data transmission via the network; while the bus type protocol focuses more on the field of industrial automation and is suitable for close-range, high-real-time communication between devices. TCP network protocols include the Redfish protocol, IPMI protocol, MQTT protocol, and HTTP protocol; bus type protocols include the RS485 protocol and CAN protocol. Through the combination of these two types of protocols, the acquisition module 5 can flexibly adapt to different application scenarios and realize the efficient collection of real-time power consumption data of various types of equipment to be cooled.

[0061] Furthermore, the control module can also introduce a smooth switching mechanism when dynamically adjusting the water pump speed. This mechanism can effectively avoid system fluctuations caused by sudden speed changes, ensuring that the liquid cooling dynamic adjustment control system operates smoothly during the adjustment process, thereby improving system reliability and stability.

[0062] Furthermore, the liquid cooling dynamic adjustment and control system provided in this embodiment also includes a feedback module for feeding back abnormal power consumption to the device to be cooled when the load is unbalanced. When the acquisition module 5 collects the power consumption of each device to be cooled, it can compare whether the operating power consumption of each device to be cooled is the same or close. When a device to be cooled has significantly higher power consumption than other devices, the control module will pop up a warning window to inform the operator that the power consumption of that server is significantly too high, so that the operator can optimize the operating function of the server in time to balance the power consumption of each device to be cooled. At the same time, in the historical data, the operator can also view the actual power consumption curve of each server throughout the day at any time.

[0063] Furthermore, the liquid cooling dynamic adjustment control system provided in this embodiment is further equipped with a power module 7. The main function of the power module 7 is to provide stable power support for each module in the system to ensure the normal operation of the entire system.

[0064] Example 3

[0065] Reference Figure 3 and Figure 4 As shown, this embodiment provides a liquid cooling dynamic adjustment device with load feedback, including a controller 1. The controller 1 includes a liquid cooling dynamic adjustment control system with load feedback according to the second embodiment.

[0066] Specifically, the controller 1 integrates multiple communication protocols, including RS232 protocol, RS485 protocol and Modbus protocol, to achieve flexible device connection and data interaction.

[0067] Furthermore, controller 1 can monitor and collect power consumption data for each device to be cooled in real time. Through comparative analysis, controller 1 can identify significant differences in the operating power consumption of each device to be cooled. If a device to be cooled is found to have significantly higher power consumption than other devices, the system will automatically trigger an alert mechanism, prompting the operator to be alerted to the abnormally high power consumption of the server by popping up an alert window. This immediate feedback allows the operator to take quick action to optimize the server's operating configuration or functions to achieve a more balanced power distribution.

[0068] Furthermore, the communication function of the controller 1 can be realized by devices such as a single-chip microcomputer, a programmable logic controller (PLC for short), and a field programmable gate array (FPGA for short). However, considering that the single-chip microcomputer has the advantages of low cost, low power consumption, small size, high flexibility, the ability to implement complex control algorithms, and support for multiple communication protocols, it is suitable for scenarios that are cost-sensitive, have low power consumption requirements, and are limited in size. Therefore, in an embodiment of the present invention, a single-chip microcomputer is preferably selected to implement the function of the controller 1. This design not only enables the liquid cooling distribution device to have an efficient interrupt processing mechanism, capable of quickly responding to external interrupt requests and ensuring the real-time performance of the system, but also further improves the adaptability and reliability of the entire device under complex working conditions.

[0069] Specifically, the liquid cooling distribution device provided in this embodiment also includes a primary unit, a heat exchanger, and a secondary unit. The primary and secondary units exchange heat via the heat exchanger. The primary unit includes a first flow meter and a three-way valve 3. The first flow meter is connected to the three-way valve 3 and is used to monitor the flow rate of the primary coolant in real time and cooperate with the three-way valve 3 to achieve precise flow control. In this embodiment, the heat exchanger is preferably a plate heat exchanger.

[0070] Specifically, the secondary unit includes a second flowmeter, a bypass valve 6, a reservoir 4, a filter, and a water pump assembly. The second flowmeter is connected to the bypass valve to monitor the secondary coolant flow in real time; the bypass valve is connected to the reservoir to adjust the coolant flow direction based on flow requirements; the reservoir is connected to the filter to store the coolant and provide a stable liquid level buffer; and the filter is connected to the water pump assembly to remove impurities from the coolant, ensuring coolant cleanliness and providing a reliable fluid supply to the water pump assembly.

[0071] Specifically, the water pump assembly includes a first water pump assembly and a second water pump assembly arranged in parallel. Each water pump assembly includes a water pump and a connected one-way valve. This design not only improves system reliability but also ensures unidirectional flow of coolant through the one-way valve, preventing backflow and thus optimizing the operating efficiency and stability of the entire cooling system.

[0072] Specifically, refer to Figure 4 and Figure 5The working principle of the liquid cooling distribution device provided in this embodiment is as follows: the plate heat exchanger serves as the core heat exchange device, responsible for efficiently exchanging heat between the primary side (connected to the coolant supply device) and the secondary side (connected to the device to be cooled). The water pump assembly (first water pump and second water pump) is used to promote the circulation of coolant in the system. The flowmeter (first flowmeter and second flowmeter) respectively monitors the coolant flow on the primary and secondary sides to ensure that the system operates on demand and avoid insufficient or excessive flow. The temperature and pressure sensors (TP11, TP12, TP21, TP22) are used to monitor the coolant temperature on the primary and secondary sides, as well as the inlet and outlet temperatures of the plate heat exchanger, providing data support for the control system to adjust the coolant temperature in real time to ensure that the system operates in an optimal state. The pressure sensor (P1) monitors the pressure in the system in real time to ensure that the system operates within a safe pressure range and prevent equipment damage or safety accidents caused by excessive pressure. The liquid level sensor is used to monitor the liquid level in the primary side supply to prevent the system from idling due to low liquid level, thereby ensuring stable operation of the system. The temperature and humidity sensor (TH) is used to monitor the ambient temperature around the equipment to avoid damage to the equipment due to the liquid temperature being lower than the dew point temperature of the environment. The leakage sensor (L) is used to detect leakage inside the equipment to avoid damage to the equipment due to leakage. The filter is used to remove impurities in the coolant, protect the equipment in the system from contamination, and extend the service life of the equipment. The one-way valve (first one-way valve and second one-way valve) ensures that the coolant flows in a predetermined direction, prevents backflow, and avoids unnecessary circulation or pressure fluctuations of the coolant in the system. The three-way valve 3 is used to adjust the flow direction of the coolant. It can switch the cooling mode under different working conditions, or switch to the bypass mode during system maintenance to ensure the flexibility and maintainability of the system. The liquid storage tank 4 is used to store the coolant, and replenish and discharge the coolant through the refill inlet and refill outlet to provide a stable liquid level guarantee for the system. Through the coordinated work of the above components, the device can achieve efficient, stable and reliable cooling functions, meet the heat dissipation requirements of different equipment, and ensure the long-term stable operation of the system. It should be noted that in Figure 5 In the figure, for the sake of simplicity, the first water pump and the second water pump are represented by water pump 1 and water pump 2 respectively; the first flow meter and the second flow meter are represented by flow meter 1 and flow meter 2 respectively; the first one-way valve and the second one-way valve are represented by one-way valve 1 and one-way valve 2 respectively.

[0073] Furthermore, the liquid cooling distribution device provided in this embodiment also features a historical data recording function. Operators can access the system interface at any time to view the actual power consumption curves of each device being cooled throughout the day. This function not only helps operators understand the energy consumption patterns of the devices being cooled but also provides valuable data support for future energy management and optimization. Through this detailed energy consumption analysis, operators can more precisely adjust the workload of the devices being cooled, thereby improving the energy efficiency and operational efficiency of the entire data center.

[0074] Example 4

[0075] Reference Figure 6 As shown, this embodiment provides a cabinet, including a liquid cooling dynamic adjustment device with load feedback provided in the third embodiment.

[0076] Specifically, the cabinet provided in this embodiment includes multiple devices to be cooled, such as servers. These devices all establish a communication connection with the liquid cooling dynamic adjustment device to achieve precise control of the cooling process. The communication connection can be implemented in a variety of flexible ways, such as through an external network switch or a bus connection. This design not only improves the efficiency and reliability of the cooling system, but also enhances the communication capabilities and interoperability of the devices within the entire cabinet.

[0077] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0078] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the steps in the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0079] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0080] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0081] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A liquid cooling dynamic adjustment control method with load feedback, characterized in that: include: S1. Obtain the inlet and outlet liquid temperatures and real-time power consumption data of each device to be cooled in real time; S2. Compare the inlet and outlet liquid temperatures of each device to be cooled with a safety temperature threshold, and dynamically adjust the speed of the secondary-side water pump based on the comparison result; when the inlet and outlet liquid temperatures are higher than the safety temperature threshold, increase the water pump speed to bring the inlet and outlet liquid temperatures closer to the safety temperature threshold; otherwise, reduce the water pump speed; The safety temperature threshold is set according to the temperature required by each device to be cooled.

2. The liquid cooling dynamic adjustment control method with load feedback according to claim 1 is characterized in that: While executing S1, the heat exchange efficiency of the primary side used for exchanging heat on the secondary side reaches a maximum value, and the method for obtaining the maximum value is: setting the fluid channel on the primary side to a fixed opening and obtaining the water temperature of the primary side in real time; when it is detected that the water temperature on the primary side is abnormal or a fault occurs, the state of the fluid channel is automatically switched to the bypass mode.

3. A liquid cooling dynamic adjustment control system with load feedback, characterized in that: include: The acquisition module is used to obtain the inlet and outlet liquid temperatures and real-time power consumption data of each device to be cooled in real time; a control module, configured to compare the inlet and outlet liquid temperatures of each device to be cooled with a safety temperature threshold, and dynamically adjust the speed of the water pump on the secondary side according to the comparison result; when the inlet and outlet liquid temperatures are higher than the safety temperature threshold, increase the water pump speed to bring the inlet and outlet liquid temperatures closer to the safety temperature threshold; otherwise, reduce the water pump speed; The safety temperature threshold is set according to the temperature required by each device to be cooled.

4. The liquid cooling dynamic adjustment and control system with load feedback according to claim 3, characterized in that: The method for the acquisition module to obtain the real-time power consumption data of the device to be cooled includes communicating with the device to be cooled using a network protocol, wherein the network protocol includes the redfish protocol, the IPMI protocol, the MQTT protocol and the HTTP protocol.

5. The liquid cooling dynamic adjustment and control system with load feedback according to claim 3, characterized in that: The method in which the acquisition module obtains the real-time power consumption data of the device to be cooled further comprises communicating via bus, wherein the protocols supported by the bus communication include RS485 protocol and CAN protocol.

6. A liquid cooling dynamic adjustment device with load feedback, characterized in that: The controller comprises a liquid cooling dynamic adjustment control system with load feedback according to any one of claims 3 to 5.

7. The liquid cooling dynamic adjustment device with load feedback according to claim 6, characterized in that: It also includes a primary side unit, a heat exchanger and a secondary side unit; the primary side unit and the secondary side unit exchange heat through the heat exchanger; wherein the primary side unit includes a first flow meter and a three-way valve; the first flow meter is connected to the three-way valve.

8. The liquid cooling dynamic adjustment device with load feedback according to claim 7, characterized in that: The secondary side unit includes a second flow meter, a bypass valve, a liquid storage tank, a filter and a water pump assembly; the second flow meter is connected to the bypass valve, the bypass valve is connected to the liquid storage tank, the liquid storage tank is connected to the filter, and the filter is connected to the water pump assembly.

9. The liquid cooling dynamic adjustment device with load feedback according to claim 8, characterized in that: The water pump assembly includes a first water pump assembly and a second water pump assembly connected in parallel, and the first water pump assembly and the second water pump assembly each include a connected water pump and a one-way valve.

10. A cabinet, characterized in that: It comprises a liquid-cooled dynamic adjustment device with load feedback as described in any one of claims 6 to 9.

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