Energy-saving liquid cooling system and control method thereof

Abstract

The invention relates to the technical field of heat dissipation, and discloses an energy-saving liquid cooling system and a control method thereof.The system comprises a liquid path subsystem, a fluorine path subsystem, a control module, a heat exchanger and an air cooling heat dissipation module, a secondary refrigerant circulates in the liquid path subsystem, and a refrigerant circulates in the fluorine path subsystem; the liquid path subsystem is in coupling connection with the fluorine path subsystem through the heat exchanger; the air cooling heat dissipation module is used for conducting air cooling heat dissipation on the liquid circuit subsystem and the fluorine circuit subsystem. The control module is electrically connected with the liquid path subsystem, the fluorine path subsystem and the air cooling heat dissipation module, and the control module is used for enabling the liquid cooling system to be switched between a natural cooling mode and a mixed cooling mode by adjusting the flow direction and flow of a secondary refrigerant of the liquid path subsystem, the refrigeration intensity of the fluorine path subsystem and the heat dissipation intensity of the air cooling heat dissipation module. Natural cooling and mechanical refrigeration are combined, and the system is controlled to switch different operation modes so as to reduce the energy consumption of the system.

Description

Technical Field

[0001] This invention relates to the field of heat dissipation technology, specifically to an energy-saving liquid cooling system and its control method. Background Technology

[0002] In current high-density heat dissipation scenarios such as data centers and energy storage power stations, the high energy consumption of existing liquid cooling systems has become a key bottleneck restricting the industry's low-carbon development. Most systems rely excessively on mechanical cooling modules operating at full load, and even during periods of abundant natural cooling such as spring and autumn, and at night, they have not established efficient natural cooling utilization mechanisms. At the same time, core components such as circulating pumps and fans mostly operate in a fixed-frequency mode, unable to dynamically adjust power according to heat dissipation needs, resulting in increased annual power consumption and carbon emissions.

[0003] Meanwhile, existing liquid cooling systems have significant shortcomings in their adaptability to different operating conditions and their control logic design. At the operating condition level, these systems are mostly designed for fixed loads and single environments. When faced with complex scenarios such as the charging and discharging cycles of energy storage power stations (heat generation fluctuating by 30%-50%) and sudden changes in outdoor temperature and humidity, they cannot adjust their heat dissipation modes in a timely manner. This can easily lead to problems such as insufficient heat dissipation causing battery bulging and server downtime, or excessive heat dissipation causing condensation in pipes. At the control logic level, key parameters such as the frequency adjustment threshold of the circulating pump and the conditions for switching operating conditions lack quantitative standards, relying on the experience of maintenance personnel. This not only increases the difficulty of fault location but also accelerates component wear and shortens equipment lifespan due to operational errors. Furthermore, frequent maintenance and repairs not only generate high repair costs but also incur hidden costs such as data loss and energy storage interruptions due to downtime, further exacerbating the operational burden on enterprises. Summary of the Invention

[0004] This invention provides an energy-saving liquid cooling system and its control method to solve the problem of high energy consumption in traditional liquid cooling systems.

[0005] In a first aspect, the present invention provides an energy-saving liquid cooling system, comprising: a liquid circuit subsystem, a refrigerant circuit subsystem, a control module, a heat exchanger, and an air-cooled heat dissipation module, wherein a refrigerant flows in the liquid circuit subsystem and a refrigerant flows in the refrigerant circuit subsystem; the liquid circuit subsystem and the refrigerant circuit subsystem are coupled together via a heat exchanger; the air-cooled heat dissipation module is used to perform air cooling on the liquid circuit subsystem and the refrigerant circuit subsystem; the control module is electrically connected to the liquid circuit subsystem, the refrigerant circuit subsystem, and the air-cooled heat dissipation module, and the control module is used to switch the liquid cooling system between a natural cooling mode and a hybrid cooling mode by adjusting the flow direction and flow rate of the refrigerant in the liquid circuit subsystem, the cooling intensity of the refrigerant circuit subsystem, and the heat dissipation intensity of the air-cooled heat dissipation module.

[0006] The energy-saving liquid cooling system provided by this invention achieves intelligent switching and smooth transition between natural cooling mode and hybrid cooling mode by coordinating the refrigerant flow direction and flow rate of the liquid circuit subsystem, the cooling intensity of the fluorine circuit subsystem, and the heat dissipation intensity of the air-cooled heat dissipation module through a control module. This not only dynamically allocates the cooling load according to actual heat dissipation needs, maximizing the use of natural cold sources to reduce energy consumption, but also significantly improves the system's adaptability and operational efficiency under complex operating conditions. Thus, while ensuring heat dissipation performance, it achieves significant energy savings and optimized operating costs.

[0007] In one optional embodiment, the liquid circuit subsystem includes: a liquid tank, a circulating pump assembly, an electric three-way valve, and a dry cooler. The circulating pump assembly and the electric three-way valve are electrically connected to the control module. The outlet of the liquid tank is connected to each inlet of the circulating pump assembly, and the liquid tank contains a refrigerant. Each outlet of the circulating pump assembly is connected to the inlet of the electric three-way valve, and the circulating pump assembly drives the refrigerant to circulate within the liquid circuit subsystem. The first and second outlets of the electric three-way valve are respectively connected to the liquid-side inlet of the dry cooler and the liquid-side inlet of the heat exchanger, and the electric three-way valve is used to adjust the opening of the first and second outlets based on the control signal from the control module. The air-side inlet of the dry cooler is connected to the first output terminal of the air-cooled heat dissipation module. The liquid-side outlet of the dry cooler merges with the liquid-side outlet of the heat exchanger to form the output terminal of the liquid circuit subsystem. The dry cooler is used to naturally cool the refrigerant inside based on the airflow output by the air-cooled heat dissipation module.

[0008] In one optional embodiment, the liquid circuit subsystem further includes: a check valve assembly and a filter, wherein each inlet of the check valve assembly is connected to one outlet of the circulating pump assembly, and each outlet of the check valve assembly is connected to the inlet of an electric three-way valve; the filter is located at the output end of the liquid circuit subsystem.

[0009] In one optional embodiment, the liquid circuit subsystem further includes a safety valve, wherein the safety valve is disposed in the passage between the circulating pump group and the electric three-way valve, the outlet of the safety valve is connected to the inlet of the liquid tank, and the safety valve is electrically connected to the control module; when the control module determines that the pressure of the liquid circuit subsystem exceeds the preset pressure, it controls the safety valve to open and release pressure.

[0010] In one optional embodiment, the liquid circuit subsystem further includes a first temperature sensor and a second temperature sensor, wherein both the first temperature sensor and the second temperature sensor are electrically connected to the control module; the first temperature sensor is located at the liquid-side outlet of the heat exchanger, and the second temperature sensor is located at the liquid-side outlet of the dry cooler.

[0011] In one optional embodiment, the refrigerant circuit subsystem includes: a compressor, a condenser, and an electronic expansion valve, wherein both the compressor and the electronic expansion valve are electrically connected to a control module; the compressor inlet is connected to the refrigerant-side outlet of the heat exchanger, and the compressor outlet is connected to the refrigerant-side inlet of the condenser, the compressor being used to adjust its operating frequency based on control signals from the control module; the condenser's refrigerant-side outlet is connected to the inlet of the electronic expansion valve, and the condenser's air-side inlet is connected to the second output terminal of the air-cooled heat dissipation module, the condenser being used to allow the refrigerant inside to condense naturally based on the airflow output by the air-cooled heat dissipation module; the electronic expansion valve's outlet is connected to the refrigerant-side inlet of the heat exchanger, the electronic expansion valve being used to throttle and reduce the pressure of the flowing refrigerant.

[0012] Secondly, the present invention provides a control method for an energy-saving liquid cooling system, applied to a control module of the first aspect or any corresponding embodiment described above. The method includes: acquiring the current operating mode of the liquid cooling system; acquiring the temperature of the liquid-side outlet of the heat exchanger as a first acquisition temperature; acquiring the temperature of the liquid-side outlet of the dry cooler in the liquid circuit subsystem as a second acquisition temperature; after acquiring a first preset temperature and a second preset temperature under the current operating mode of the liquid cooling system, comparing the first acquisition temperature with the first preset temperature and comparing the second acquisition temperature with the second preset temperature, respectively; adjusting the flow direction and flow rate of the refrigerant in the liquid circuit subsystem, the cooling intensity of the fluorine circuit subsystem, and the heat dissipation intensity of the air-cooled heat dissipation module based on the comparison results; the operating modes include: natural cooling mode, a hybrid cooling mode with natural cooling as the main component, and a hybrid cooling mode with mechanical cooling as the main component.

[0013] The energy-saving liquid cooling system control method provided by this invention acquires the system's operating status and key node temperatures in real time, and performs dynamic comparison and coordinated control based on preset temperatures under different operating modes. This achieves precise linkage adjustment of liquid flow distribution, refrigerant cooling intensity, and air cooling heat dissipation intensity. This method effectively ensures smooth switching and stable operation of the system between multiple modes such as natural cooling and hybrid cooling. It not only fully utilizes the energy-saving potential of natural cold sources and reduces the operating time and energy consumption of mechanical refrigeration, but also significantly improves the system's adaptability and overall energy efficiency under varying operating conditions. Thus, while meeting heat dissipation requirements, it achieves significant optimization of operating costs and a comprehensive improvement in system reliability.

[0014] In one optional implementation, when the liquid cooling system is in natural cooling mode, the process of adjusting the flow direction and flow rate of the refrigerant in the liquid circuit subsystem, the cooling intensity of the fluorine circuit subsystem, and the heat dissipation intensity of the air-cooled heat dissipation module based on the comparison results includes: opening the first outlet of the electric three-way valve, closing the second outlet of the electric three-way valve, and turning off the compressor, so that all the refrigerant flows to the dry cooler; adjusting the heat dissipation intensity of the air-cooled heat dissipation module based on the comparison results of the second collected temperature and the second preset temperature; when it is determined that the second collected temperature is greater than the second preset temperature, controlling the air-cooled heat dissipation module to increase the heat dissipation intensity; determining whether the heat dissipation intensity of the air-cooled heat dissipation module is the maximum heat dissipation intensity; when it is determined that the heat dissipation intensity of the air-cooled heat dissipation module is the maximum heat dissipation intensity, and the second collected temperature remains unchanged or rises within a preset time period, controlling the liquid cooling system to switch to a hybrid cooling mode with natural cooling as the main mode.

[0015] In one optional implementation, when the liquid cooling system is in a hybrid refrigeration mode dominated by natural cooling, the process of adjusting the flow direction and flow rate of the refrigerant in the liquid circuit subsystem, the refrigeration intensity of the fluorine circuit subsystem, and the heat dissipation intensity of the air-cooled heat dissipation module based on the comparison results includes: controlling the compressor to operate at the lowest frequency and controlling the air-cooled heat dissipation module to operate at the maximum heat dissipation intensity; adjusting the heat dissipation intensity of the air-cooled heat dissipation module based on the comparison results of the second collected temperature and the second preset temperature, and adjusting the opening degree of the first outlet and the second outlet of the electric three-way valve based on the comparison results of the first collected temperature and the first preset temperature; when it is determined that the first collected temperature is less than the first preset temperature, controlling the electric three-way valve to increase the opening degree of the second outlet; determining whether the opening degree of the second outlet of the electric three-way valve is greater than or equal to the preset opening degree; if so, controlling the liquid cooling system to switch to the natural cooling mode; when it is determined that the second collected temperature is greater than the second preset temperature, controlling the air-cooled heat dissipation module to increase the heat dissipation intensity; determining whether the heat dissipation intensity of the air-cooled heat dissipation module is the maximum heat dissipation intensity; if so, and after the second collected temperature remains unchanged or rises within a preset time period, controlling the liquid cooling system to switch to a hybrid refrigeration mode dominated by mechanical refrigeration.

[0016] In one optional implementation, when the liquid cooling system is in a hybrid cooling mode dominated by mechanical refrigeration, the process of adjusting the flow direction and flow rate of the refrigerant in the liquid circuit subsystem, the cooling intensity of the fluorine circuit subsystem, and the heat dissipation intensity of the air-cooled heat dissipation module based on the comparison results includes: controlling the compressor to operate at the lowest frequency and controlling the air-cooled heat dissipation module to operate at the maximum heat dissipation intensity; adjusting the heat dissipation intensity of the air-cooled heat dissipation module based on the comparison results of the second collected temperature and the second preset temperature, and adjusting the opening degree of the first outlet and the second outlet of the electric three-way valve based on the comparison results of the first collected temperature and the first preset temperature; when it is determined that the first collected temperature is lower than the first preset temperature, controlling the fluorine circuit subsystem to reduce the cooling intensity; determining whether the cooling intensity of the fluorine circuit subsystem is the minimum cooling intensity; if so, and after the first collected temperature drops within a preset time period, controlling the liquid cooling system to switch to a hybrid cooling mode dominated by natural cooling; when it is determined that the second collected temperature is higher than the second preset temperature, controlling the electric three-way valve to reduce the opening degree of the first outlet; determining whether the cooling intensity of the fluorine circuit subsystem is the maximum cooling intensity; if so, controlling the liquid cooling system to maintain the current operating mode. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a composition diagram of an energy-saving liquid cooling system according to an embodiment of the present invention; Figure 2 This is a detailed structural diagram of an energy-saving liquid cooling system according to an embodiment of the present invention; Figure 3 This is a schematic flowchart of a control method for an energy-saving liquid cooling system according to an embodiment of the present invention; Figure 4 This is a flowchart illustrating the control method of an energy-saving liquid cooling system under natural cooling mode according to an embodiment of the present invention. Figure 5 This is a detailed flowchart of the control method for an energy-saving liquid cooling system according to an embodiment of the present invention; Figure 6 This is a flowchart illustrating the control method of an energy-saving liquid cooling system under a hybrid refrigeration mode primarily based on natural cooling, according to an embodiment of the present invention. Figure 7 This is a flowchart illustrating the control method of an energy-saving liquid cooling system under a hybrid refrigeration mode dominated by mechanical refrigeration, according to an embodiment of the present invention. Figure 8This is a schematic diagram of the hardware structure of an electronic device according to an embodiment of the present invention. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] It is understood that before using the technical solutions disclosed in the various embodiments of the present invention, users should be informed of the types, scope of use, and usage scenarios of the personal information involved in the present invention and their authorization should be obtained in accordance with relevant laws and regulations through appropriate means.

[0021] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] This embodiment provides an energy-saving liquid cooling system, such as Figure 1 As shown, it includes: a liquid circuit subsystem 1, a refrigerant circuit subsystem 2, an air-cooled heat dissipation module 3, a heat exchanger 4, and a control module 5. The liquid circuit subsystem 1 is in which a refrigerant flows, and the refrigerant circuit 2 is in which a refrigerant flows. The liquid circuit subsystem 1 and the refrigerant circuit 2 are coupled together through the heat exchanger 4.

[0023] Figure 1 In the middle, the air-cooled heat dissipation module 3 is used to provide air cooling for the liquid circuit subsystem 1 and the fluorine circuit subsystem 2.

[0024] Specifically, Figure 1 In this system, both the liquid circuit subsystem 1 and the fluorine circuit subsystem 2 contain heat exchange devices. When the refrigerant and coolant flow through the heat exchange devices, the air-cooled heat dissipation module 3 outputs cooling air to the heat exchange devices. The air-cooled heat dissipation module 3 drives the cooling air flow to remove the heat carried by the refrigerant in the liquid circuit subsystem 1 and the refrigerant in the fluorine circuit subsystem 2 and discharge it to the external environment. At the same time, it performs forced convection heat dissipation on the liquid circuit subsystem 1 and the fluorine circuit subsystem 2, thereby achieving coordinated heat dissipation of the liquid circuit subsystem 1 and the fluorine circuit subsystem 2.

[0025] Optionally, the air-cooled heat dissipation module includes at least one fan, with multiple fans serving as backups for each other as driving sources to output cooling airflow.

[0026] Figure 1 In the middle, the control module 5 is electrically connected to the liquid circuit subsystem 1, the fluorine circuit subsystem 2 and the air-cooled heat dissipation module 3. The control module 5 is used to switch the liquid cooling system between natural cooling mode and hybrid cooling mode by adjusting the flow direction and flow rate of the refrigerant in the liquid circuit subsystem 1, the cooling intensity of the fluorine circuit subsystem 2 and the heat dissipation intensity of the air-cooled heat dissipation module 3.

[0027] Specifically, Figure 1 In different operating modes of the liquid cooling system, the control module 5 adjusts the flow rate of the refrigerant through the heat exchanger 4 by regulating the flow direction and flow rate of the refrigerant in the liquid circuit subsystem 1, the cooling intensity of the fluorine circuit subsystem 2, and the heat dissipation intensity of the air-cooled heat dissipation module 3, so that the system maintains the optimal energy efficiency state. For example, in the natural cooling mode, the control module 5 makes the heat dissipation task mainly completed by the air-cooled heat dissipation module 3; in the hybrid cooling mode, while maintaining the natural cooling function of the air-cooled heat dissipation module 3, the fluorine circuit subsystem 2 is activated as needed to provide supplementary cooling capacity.

[0028] Optionally, the liquid circuit subsystem includes multiple electrically controlled switches such as electrically controlled valves, and the refrigerant circuit subsystem includes refrigeration equipment such as compressors. The control module adjusts the opening degree of the electrically controlled valves to change the flow direction and flow rate of the refrigerant according to the current operating status of the liquid cooling system, and adjusts the working status of the compressor to adjust the cooling intensity of the refrigerant circuit subsystem.

[0029] Optionally, the control module also integrates a comprehensive security protection mechanism. When any abnormal operating state of the system is detected, the corresponding protection program will be activated immediately to ensure the safe and reliable operation of the system.

[0030] The energy-saving liquid cooling system provided in this embodiment achieves intelligent switching and smooth transition between natural cooling mode and hybrid cooling mode by coordinating the refrigerant flow direction and flow rate of the liquid circuit subsystem, the cooling intensity of the fluorine circuit subsystem, and the heat dissipation intensity of the air-cooled heat dissipation module through the control module. This not only dynamically allocates the cooling load according to actual heat dissipation needs, maximizing the use of natural cold sources to reduce energy consumption, but also significantly improves the system's adaptability and operational efficiency under complex operating conditions. Thus, while ensuring heat dissipation performance, it achieves significant energy savings and optimized operating costs.

[0031] In some alternative implementations, such as Figure 2As shown, the liquid circuit subsystem includes: a liquid tank C21, a circulating pump assembly (i.e., P01 and P02), an electric three-way valve VE3, and a dry cooler E22. The circulating pump assembly and the electric three-way valve VE3 are both electrically connected to the control module (the connection lines between the components and the control module are not shown in this embodiment). The outlet of the liquid tank C21 is connected to each inlet of the circulating pump assembly, and the liquid tank C21 contains a refrigerant. Each outlet of the circulating pump assembly is connected to the inlet of the electric three-way valve VE3, and the circulating pump assembly is used to drive the refrigerant to circulate in the liquid circuit subsystem. The first outlet and the second outlet of the electric three-way valve VE3... The outlets are respectively connected to the liquid-side inlet of the dry cooler E22 and the liquid-side inlet of the heat exchanger (i.e., plate heat exchanger E01). The electric three-way valve VE3 is used to adjust the opening of the first outlet and the second outlet based on the control signal of the control module. The air-side inlet of the dry cooler E22 is connected to the first output end of the air-cooled heat dissipation module (i.e., fans G01 and G02). After the liquid-side outlet of the dry cooler E22 merges with the liquid-side outlet of the heat exchanger, it forms the output end (i.e., liquid outlet) of the liquid circuit subsystem. The dry cooler E22 is used to allow the refrigerant inside to be naturally cooled by the airflow output by the air-cooled heat dissipation module.

[0032] Specifically, Figure 2 In this system, liquid tank C21 serves as both the storage and supply source for the refrigerant. After flowing out of the outlet of liquid tank C21, the refrigerant is transported to the inlet of the electric three-way valve VE3 via a circulating pump unit. The electric three-way valve VE3, as a key actuator for flow distribution, proportionally distributes the refrigerant flow to two parallel cooling branches according to the control module's instructions: the first branch leads to the liquid-side inlet of the dry cooler E22, and the second branch leads to the liquid-side inlet of the plate heat exchanger E01. In the dry cooler E22, the refrigerant flows through its internal liquid-side channels, while cooling air driven by fans G01 and G02 flows through its air-side, achieving natural cooling of the refrigerant through air-liquid heat exchange. The cooled refrigerant flows out from the liquid-side outlet of the dry cooler E22, mixes with the refrigerant flowing from the liquid-side outlet of the plate heat exchanger E01 at the confluence point, and is finally output through the system outlet, completing the entire cycle.

[0033] Figure 2 The liquid circuit subsystem also includes: a check valve assembly (i.e., V501 and V502) and a filter Z11. Each inlet of the check valve assembly is connected to one outlet of the circulating pump assembly, and each outlet of the check valve assembly is connected to the inlet of the electric three-way valve VE3. The filter Z11 is located at the output end of the liquid circuit subsystem.

[0034] Figure 2The liquid circuit subsystem also includes a safety valve V061, which is installed in the passage between the circulating pump group and the electric three-way valve VE3. The outlet of the safety valve V061 is connected to the inlet of the liquid tank C21, and the safety valve V061 is electrically connected to the control module. When the control module determines that the pressure of the liquid circuit subsystem exceeds the preset pressure, it controls the safety valve V061 to open and release pressure.

[0035] Figure 2 The liquid circuit subsystem also includes a first temperature sensor TT13 and a second temperature sensor TT14, both of which are electrically connected to the control module. The first temperature sensor TT13 is located at the liquid-side outlet of the heat exchanger, and the second temperature sensor TT14 is located at the liquid-side outlet of the dry cooler.

[0036] Specifically, Figure 2 The liquid circuit subsystem also includes: temperature sensors TT11, TT12 and TT15, pressure sensors PT11, PT12, PT13, PT14 and PT15, low level switch and high level switch installed on liquid tank C21, ball valves V001, V002 and V003, replenishment pump P03, circulation pumps P01 and P02, check valves V501 and V502, automatic vent valve V401, ball valves V004, V005, V006, V007 and V008, ambient temperature sensor TT21, and flow meter FM.

[0037] Specifically, Figure 2 In the system, the circulating pump set includes circulating pumps P01 and P02, one of which is on standby and the other is in use. When the system is working normally, only one pump is started. The two circulating pumps are used intermittently. Each circulating pump is equipped with a check valve at the front end to prevent liquid backflow.

[0038] Specifically, Figure 2 When the control module determines that the pressure in the system exceeds the opening pressure of the safety valve V601 based on the pressure sensor, it controls the safety valve V601 to open. The safety valve V601 discharges part of the refrigerant into the liquid tank C21 to relieve pressure, ensuring the safety of system operation. At the same time, the refrigerant that is relieved will not flow out of the system, avoiding liquid pollution of the environment and preventing frequent liquid replenishment.

[0039] Specifically, Figure 2 In this system, when the control module detects a low liquid level switch trigger, it opens ball valves V001 and V002 and replenishment pump P03 to replenish liquid; when the control module detects a high liquid level switch trigger, it closes ball valves V001 and V002 and replenishment pump P03 to stop replenishing liquid. Ball valve V001 opens when replenishment pump P03 is in operation to purge air from liquid tank C21, thereby improving the replenishment rate and effectiveness.

[0040] Specifically, Figure 2 In the process, ball valves V006 and V007 are installed before and after filter Z11. When filter Z11 needs maintenance, ball valve V008 is opened and V006 and V007 are closed to bypass and replace filter Z11. After maintenance is completed, V006 and V007 are opened and V008 is closed.

[0041] Specifically, Figure 2 In this system, the refrigerant enters through the inlet, passing through temperature sensor TT11, pressure sensor PT11, liquid tank C21, pressure sensor PT12, temperature sensor TT12, circulation pump P01, and check valve V501. Alternatively, it can pass through circulation pump P02 and check valve V502. Circulation pumps P01 and P02 are alternately used, operating intermittently or switching to the other if one fails. The control module adjusts the frequency of the circulation pumps based on the temperature measured by TT11. When the temperature exceeds the set inlet temperature, the frequency increases; when it falls below the set inlet temperature, the frequency decreases; and when the temperature equals the set inlet temperature, the frequency remains unchanged. The refrigerant then passes through safety valve V601, pressure sensor PT13, and electric three-way valve VE3. Electric three-way valve VE3 controls the flow ratio of fluid to dry cooler E22 and plate heat exchanger E01. After passing through dry cooler E22 and plate heat exchanger E01, the refrigerant passes through second temperature sensor TT14, pressure sensor PT14, ball valve V006, filter Z11, ball valve V007, flow meter FM, pressure sensor PT15, and temperature sensor TT15. ​​Ball valves V005 and V004 are used for draining water from the system; vent valve V401 is used for venting air during system operation.

[0042] In some alternative implementations, such as Figure 2 As shown, the refrigerant circuit subsystem includes: compressor CPS01, condenser E21, and electronic expansion valve VD01. Both compressor CPS01 and electronic expansion valve VD01 are electrically connected to the control module. The inlet of compressor CPS01 is connected to the refrigerant-side outlet of the heat exchanger, and the outlet of compressor CPS01 is connected to the refrigerant-side inlet of condenser E21. Compressor CPS01 is used to adjust the operating frequency based on the control signal from the control module. The refrigerant-side outlet of condenser E21 is connected to the inlet of electronic expansion valve VD01, and the air-side inlet of condenser E21 is connected to the second output terminal of the air-cooled heat dissipation module. Condenser E21 is used to allow the refrigerant inside to condense naturally based on the airflow output from the air-cooled heat dissipation module. The outlet of electronic expansion valve VD01 is connected to the refrigerant-side inlet of the heat exchanger. Electronic expansion valve VD01 is used to throttle and reduce the pressure of the flowing refrigerant.

[0043] Specifically, Figure 2In the design, the dry cooler E22 and the condenser E21 are stacked together. The cold air output by the fans G01 and G02 first passes through the dry cooler E22, which can prevent the hot air from the condenser E21 from heating the dry cooler E22 after cooling. The integrated design of the dry cooler E22 and the condenser E21 can also reduce the number of fans, making the system structure more compact.

[0044] Specifically, Figure 2 In this system, the refrigerant circuit uses compressor CPS01 as its core power source. Refrigerant is drawn into compressor CPS01 from the refrigerant-side outlet of plate heat exchanger E01, where it is compressed into a high-temperature, high-pressure gaseous refrigerant, which then enters the refrigerant-side inlet of condenser E21. In condenser E21, the high-temperature, high-pressure refrigerant exchanges heat with cooling air from fans G01 and G02. The cooling air flows across the finned tube surface of condenser E21, carrying away heat from the refrigerant and causing it to gradually condense from a gaseous state into a high-temperature, high-pressure liquid state. This condensation process fully utilizes the natural cooling capacity of the air, achieving highly efficient energy transfer.

[0045] Specifically, Figure 2 In the process, the condensed liquid refrigerant flows out from the refrigerant-side outlet of condenser E21 and enters electronic expansion valve VD01. The control module precisely adjusts the opening of electronic expansion valve VD01 based on the system pressure, causing the refrigerant to undergo throttling and pressure reduction as it flows through electronic expansion valve VD01, transforming it into a low-temperature, low-pressure gas-liquid mixture. Finally, the throttled refrigerant enters the refrigerant-side inlet of plate heat exchanger E01, where it exchanges heat with the refrigerant in the liquid circuit subsystem. After absorbing heat from the refrigerant, it evaporates into a gaseous state and returns to the inlet of compressor CPS01, completing the entire refrigeration cycle.

[0046] Figure 2 In the process, the fluorine circuit subsystem also includes: pressure switch PS01, temperature sensors TT01 and TT02, pressure sensors PT01 and PT02, needle valves V101 and V102, temperature sensor TT03, and filter Z01.

[0047] Specifically, Figure 2 In the refrigerant circuit, the refrigerant is compressed and discharged by the compressor CPS01, then passes through the pressure switch PS01, temperature sensor TT01, pressure sensor PT02, and condenser E21. The condenser E21 has a V-shaped design, which effectively increases the air inlet area. Subsequently, the refrigerant passes through the needle valve V102, temperature sensor TT03, dryer filter Z01, electronic expansion valve VD01, plate heat exchanger E01, needle valve V101, temperature sensor TT02, and pressure sensor PT01, finally returning to the compressor to form a cycle.

[0048] This embodiment provides a control method for an energy-saving liquid cooling system, applied to the control module of the above embodiment, such as... Figure 3 As shown, the method includes: Step S1: Obtain the current operating mode of the liquid cooling system, obtain the temperature of the liquid-side outlet of the heat exchanger as the first acquisition temperature, and obtain the temperature of the liquid-side outlet of the dry cooler in the liquid circuit subsystem as the second acquisition temperature; the operating modes include: natural cooling mode, hybrid refrigeration mode with natural cooling as the main mode, and hybrid refrigeration mode with mechanical refrigeration as the main mode.

[0049] Step S2: After obtaining the first preset temperature and the second preset temperature under the current operating mode of the liquid cooling system, compare the first collected temperature with the first preset temperature and compare the second collected temperature with the second preset temperature.

[0050] Step S3: Based on the comparison results, adjust the flow direction and flow rate of the refrigerant in the liquid circuit subsystem, the cooling intensity of the fluorine circuit subsystem, and the heat dissipation intensity of the air-cooled heat dissipation module.

[0051] Specifically, when the liquid cooling system is in natural cooling mode, the process of adjusting the flow direction and flow rate of the refrigerant in the liquid circuit subsystem, the cooling intensity of the fluorine circuit subsystem, and the heat dissipation intensity of the air-cooled heat dissipation module based on comparison results is as follows: Figure 4 As shown, it includes: Step S301: Open the first outlet of the electric three-way valve, close the second outlet of the electric three-way valve, and turn off the compressor so that all the refrigerant flows to the dry cooler.

[0052] Step S302: Based on the comparison result between the second collected temperature and the second preset temperature, adjust the heat dissipation intensity of the air-cooled heat dissipation module.

[0053] Step S303: When it is determined that the second collected temperature is greater than the second preset temperature, control the air-cooled heat dissipation module to increase the heat dissipation intensity.

[0054] Step S304: Determine whether the heat dissipation intensity of the air-cooled heat dissipation module is the maximum heat dissipation intensity.

[0055] Step S305: When it is determined that the heat dissipation intensity of the air-cooled heat dissipation module is the maximum heat dissipation intensity, and the second collected temperature remains unchanged or rises within a preset time period, the liquid cooling system is controlled to switch to a hybrid cooling mode with natural cooling as the main mode.

[0056] Specifically, refer to Figure 2 and Figure 5After system startup, it first enters natural cooling mode. In this mode, the control module controls the electric three-way valve VE3 to open the first outlet and close the second outlet, so that the refrigerant flows only to the dry cooler E22. The control module collects the second sampled temperature fed back by TT14 and compares it with the second preset temperature of the system in natural cooling mode: if the temperature of TT14 is lower than the second preset temperature, the fan speed is reduced; if the temperature of TT14 is equal to the second preset temperature, the fan speed is maintained at the original speed; if the temperature of TT14 is higher than the second preset temperature, the fan speed is increased, and a judgment is made on whether the fan is at its maximum speed: if not, the judgment process ends and the fan is controlled to maintain the current speed; if yes, a judgment is made on whether the temperature of TT14 drops within 10 seconds: if yes, the fan is controlled to maintain the maximum speed; otherwise, the control system switches to a hybrid cooling mode with natural cooling as the main mode and mechanical refrigeration as the auxiliary mode.

[0057] Specifically, when the liquid cooling system is in a hybrid refrigeration mode dominated by natural cooling, the process of adjusting the flow direction and flow rate of the refrigerant in the liquid circuit subsystem, the cooling intensity of the fluorine circuit subsystem, and the heat dissipation intensity of the air-cooled heat dissipation module based on comparison results is as follows: Figure 6 As shown, it includes: Step S311: Control the compressor to run at the lowest frequency and control the air-cooled heat dissipation module to run at the maximum heat dissipation intensity.

[0058] Step S312: Based on the comparison result of the second collected temperature and the second preset temperature, adjust the heat dissipation intensity of the air-cooled heat dissipation module, and based on the comparison result of the first collected temperature and the first preset temperature, adjust the opening degree of the first outlet and the second outlet of the electric three-way valve.

[0059] Step S313: When it is determined that the first collected temperature is less than the first preset temperature, control the electric three-way valve to increase the opening of the second outlet.

[0060] Step S314: Determine whether the opening degree of the second outlet of the electric three-way valve is greater than or equal to the preset opening degree.

[0061] Step S315: If yes, then control the liquid cooling system to switch to natural cooling mode.

[0062] Step S316: When it is determined that the second collected temperature is greater than the second preset temperature, control the air-cooled heat dissipation module to increase the heat dissipation intensity.

[0063] Step S317: Determine whether the heat dissipation intensity of the air-cooled heat dissipation module is the maximum heat dissipation intensity.

[0064] Step S318: If so, and the second collected temperature remains unchanged or rises within a preset time period, control the liquid cooling system to switch to a hybrid cooling mode with mechanical refrigeration as the main component.

[0065] Specifically, refer to Figure 2 and Figure 5 When the system enters a mode where natural cooling is the primary method and mechanical refrigeration is secondary, the control module controls the opening of the two outlets of the electric three-way valve VE3 to adjust the flow ratio of refrigerant to the dry cooler E22 and the plate heat exchanger E01. In this mode, the compressor CPS01 always operates at the minimum frequency of 30Hz, and the fans G01 or G02 can be used in pairs (one on standby, the other on standby) or run simultaneously, always at maximum speed. The initial opening of the two outlets of the electric three-way valve VE3 is 50% to maximize the use of air cooling for natural cooling.

[0066] Specifically, refer to Figure 2 and Figure 5 The control module collects the second temperature fed back by TT14 and compares it with the second preset temperature of the system under the mode of natural cooling as the main method and mechanical cooling as the auxiliary method: if the temperature of TT14 is lower than the second preset temperature, the fan speed is reduced; if the temperature of TT14 is equal to the second preset temperature, the fan speed is maintained at the original speed; if the temperature of TT14 is higher than the second preset temperature, the fan speed is increased, and a judgment is made on whether the fan is at its maximum speed: if not, the judgment process ends and the fan is controlled to maintain the current speed; if yes, a judgment is made on whether the temperature of TT14 has dropped within 10 seconds: if yes, the fan is controlled to maintain the highest speed; otherwise, the control system switches to a hybrid cooling mode of mechanical cooling as the main method and natural cooling as the auxiliary method.

[0067] Specifically, refer to Figure 2 and Figure 5 The control module collects the first temperature feedback from TT13 and compares it with the first preset temperature of the system under the mode of natural cooling as the main mode and mechanical cooling as the auxiliary mode. If the temperature of TT13 is greater than the first preset temperature, the opening of the mechanical cooling three-way valve (i.e., the opening of the second outlet of the electric three-way valve VE3) is reduced. If the temperature of TT13 is equal to the first preset temperature, the original opening of the mechanical cooling three-way valve is maintained. If the temperature of TT13 is less than the first preset temperature, the opening of the mechanical cooling three-way valve is increased, and a judgment is made on whether the opening of the mechanical cooling three-way valve is greater than or equal to 90%. If it is, the judgment process ends and the electric three-way valve VE3 is controlled to maintain the current opening. If it is, the control system switches to natural cooling mode.

[0068] Specifically, when the liquid cooling system is in a hybrid cooling mode dominated by mechanical refrigeration, the process of adjusting the flow direction and flow rate of the refrigerant in the liquid circuit subsystem, the cooling intensity of the fluorine circuit subsystem, and the heat dissipation intensity of the air-cooled heat dissipation module based on comparison results is as follows: Figure 7 As shown, it includes: Step S321: Control the compressor to run at the lowest frequency and control the air-cooled heat dissipation module to run at the maximum heat dissipation intensity.

[0069] Step S322: Based on the comparison result of the second collected temperature and the second preset temperature, adjust the heat dissipation intensity of the air-cooled heat dissipation module, and based on the comparison result of the first collected temperature and the first preset temperature, adjust the opening degree of the first outlet and the second outlet of the electric three-way valve.

[0070] Step S323: When it is determined that the first sampling temperature is lower than the first preset temperature, control the fluorine circuit subsystem to reduce the cooling intensity.

[0071] Step S324: Determine whether the cooling intensity of the fluorine circuit system is the minimum cooling intensity.

[0072] Step S325: If so, and the first collected temperature drops within a preset time period, control the liquid cooling system to switch to a hybrid cooling mode with natural cooling as the main mode.

[0073] Step S326: When it is determined that the second collected temperature is greater than the second preset temperature, control the electric three-way valve to reduce the opening of the first outlet.

[0074] Step S327: Determine whether the cooling intensity of the fluorine circuit system is the maximum cooling intensity.

[0075] Step S328: If yes, then control the liquid cooling system to maintain the current operating mode.

[0076] Specifically, refer to Figure 2 and Figure 5 When the system enters a mode where mechanical refrigeration is the primary method and natural cooling is secondary, the control module controls the opening of the two outlets of the electric three-way valve VE3 to adjust the flow ratio of refrigerant to the dry cooler E22 and the plate heat exchanger E01. In this mode, the compressor CPS01 always operates at the minimum frequency of 30Hz, and the fans G01 or G02 can be used in pairs (one on standby, the other on standby) or run simultaneously, always at maximum speed. The initial opening of the two outlets of the electric three-way valve VE3 is 50% to maximize the use of air cooling for natural cooling.

[0077] Specifically, refer to Figure 2 and Figure 5 The control module collects the first temperature fed back by TT13 and compares it with the first preset temperature of the system in the mode of mechanical cooling as the main method and natural cooling as the auxiliary method. If the temperature of TT13 is lower than the first preset temperature, the compressor speed is reduced and a judgment is made on whether the compressor is at its minimum speed. If it is, the judgment process ends and the compressor is controlled to maintain the current speed. If it is, a judgment is made on whether the temperature of TT13 has dropped within 10 seconds. If it is, the judgment process ends and the compressor is controlled to maintain the current speed. If it is, the control system switches to a hybrid cooling mode of natural cooling as the main method and mechanical cooling as the auxiliary method.

[0078] Specifically, refer to Figure 2 and Figure 5 If the temperature of TT13 is equal to the first preset temperature, the compressor is controlled to maintain the current speed. If the temperature of TT13 is greater than the first preset temperature, the compressor speed is increased, and a judgment is made on whether the compressor is at its maximum speed. If not, the judgment process ends and the compressor is controlled to maintain the current speed. If yes, the control system maintains the current operating mode.

[0079] Specifically, refer to Figure 2 and Figure 5 The control module collects the second collected temperature fed back by TT14 and compares it with the second preset temperature of the system in the mode of mechanical refrigeration as the main mode and natural cooling as the auxiliary mode: if the temperature of TT14 is greater than the second preset temperature, the opening of the natural cooling three-way valve (i.e., the opening of the first outlet of the electric three-way valve VE3) is reduced; if the temperature of TT14 is equal to the second preset temperature, the original opening of the natural cooling three-way valve is maintained; if the temperature of TT14 is less than the second preset temperature, the opening of the natural cooling three-way valve is increased.

[0080] The energy-saving liquid cooling system control method provided by this invention acquires the system's operating status and key node temperatures in real time, and performs dynamic comparison and coordinated control based on preset temperatures under different operating modes. This achieves precise linkage adjustment of liquid flow distribution, refrigerant cooling intensity, and air cooling heat dissipation intensity. This method effectively ensures smooth switching and stable operation of the system between multiple modes such as natural cooling and hybrid cooling. It not only fully utilizes the energy-saving potential of natural cold sources and reduces the operating time and energy consumption of mechanical refrigeration, but also significantly improves the system's adaptability and overall energy efficiency under varying operating conditions. Thus, while meeting heat dissipation requirements, it achieves significant optimization of operating costs and a comprehensive improvement in system reliability.

[0081] Figure 8 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention.

[0082] The following is a detailed reference. Figure 8 The diagram illustrates a structural schematic suitable for implementing an electronic device according to embodiments of the present invention. The electronic device may include a processor (e.g., a central processing unit, graphics processor, etc.) 001, which can perform various appropriate actions and processes according to a program stored in read-only memory (ROM) 002 or a program loaded from memory 008 into random access memory (RAM) 003. The RAM 003 also stores various programs and data required for the operation of the electronic device. The processor 001, ROM 002, and RAM 003 are interconnected via bus 004. An input / output (I / O) interface 005 is also connected to bus 004.

[0083] Typically, the following devices can be connected to I / O interface 005: input devices 006 including, for example, touchscreens, touchpads, keyboards, mice, cameras, microphones, accelerometers, gyroscopes, etc.; output devices 007 including, for example, liquid crystal displays (LCDs), speakers, vibrators, etc.; memory devices 008 including, for example, magnetic tapes, hard disks, etc.; and communication devices 009. Communication device 009 allows electronic devices to exchange data via wireless or wired communication with other devices. Although Figure 8 Electronic devices with various devices are shown, but it should be understood that it is not required to implement or have all of the devices shown, and more or fewer devices may be implemented or have instead.

[0084] In particular, according to embodiments of the present invention, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of the present invention include a computer program product comprising a computer program carried on a non-transitory computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via communication device 009, or installed from memory 008, or installed from ROM 002. When the computer program is executed by processor 001, it performs the functions defined in the control method of the energy-saving liquid cooling system of the embodiments of the present invention.

[0085] Figure 8 The electronic device shown is merely an example and should not be construed as limiting the functionality and scope of use of the embodiments of the present invention.

[0086] This invention also provides a computer-readable storage medium. The methods described above according to embodiments of the invention can be implemented in hardware or firmware, or implemented as computer code that can be recorded on a storage medium, or implemented as computer code downloaded via a network and originally stored on a remote storage medium or a non-transitory machine-readable storage medium and then stored on a local storage medium. Thus, the methods described herein can be processed by software stored on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. The storage medium can be a magnetic disk, optical disk, read-only memory, random access memory, flash memory, hard disk, or solid-state drive, etc.; further, the storage medium can also include combinations of the above types of memory. It is understood that computers, processors, microprocessor controllers, or programmable hardware include storage components capable of storing or receiving software or computer code. When the software or computer code is accessed and executed by the computer, processor, or hardware, the control method for an energy-efficient liquid cooling system shown in the above embodiments is implemented.

[0087] A portion of this invention can be applied as a computer program product, such as computer program instructions, which, when executed by a computer, can invoke or provide the methods and / or technical solutions according to the invention through the operation of the computer. Those skilled in the art will understand that the forms in which computer program instructions exist in a computer-readable medium include, but are not limited to, source files, executable files, installation package files, etc. Correspondingly, the ways in which computer program instructions are executed by a computer include, but are not limited to: the computer directly executing the instructions, or the computer compiling the instructions and then executing the corresponding compiled program, or the computer reading and executing the instructions, or the computer reading and installing the instructions and then executing the corresponding installed program. Here, the computer-readable medium can be any available computer-readable storage medium or communication medium accessible to a computer.

[0088] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. An energy-saving liquid cooling system, characterized in that, include: The system includes a liquid circuit subsystem, a fluorine circuit subsystem, a control module, a heat exchanger, and an air-cooled heat dissipation module. The liquid circuit subsystem carries a refrigerant, and the fluorine circuit subsystem carries a refrigerant. The liquid circuit subsystem and the fluorine circuit subsystem are coupled together via the heat exchanger; The air-cooled heat dissipation module is used to provide air cooling for the liquid circuit subsystem and the fluorine circuit system. The control module is electrically connected to the liquid circuit subsystem, the fluorine circuit subsystem, and the air-cooled heat dissipation module. The control module is used to switch the liquid cooling system between natural cooling mode and hybrid cooling mode by adjusting the flow direction and flow rate of the refrigerant in the liquid circuit subsystem, the cooling intensity of the fluorine circuit subsystem, and the heat dissipation intensity of the air-cooled heat dissipation module.

2. The energy-saving liquid cooling system according to claim 1, characterized in that, The liquid circuit subsystem includes: a liquid tank, a circulating pump unit, an electric three-way valve, and a dry cooler. Both the circulating pump unit and the electric three-way valve are electrically connected to the control module. The outlet of the liquid tank is connected to each inlet of the circulating pump group, and the liquid tank contains a coolant. Each outlet of the circulating pump unit is connected to the inlet of the electric three-way valve, and the circulating pump unit is used to drive the refrigerant to circulate in the liquid circuit subsystem; The first outlet and the second outlet of the electric three-way valve are respectively connected to the liquid-side inlet of the dry cooler and the liquid-side inlet of the heat exchanger. The electric three-way valve is used to adjust the opening degree of the first outlet and the second outlet based on the control signal of the control module. The air-side inlet of the dry cooler is connected to the first output end of the air-cooled heat dissipation module. The liquid-side outlet of the dry cooler merges with the liquid-side outlet of the heat exchanger to form the output end of the liquid circuit subsystem. The dry cooler is used to allow the refrigerant inside to be naturally cooled by the airflow output by the air-cooled heat dissipation module.

3. The energy-saving liquid cooling system according to claim 2, characterized in that, The fluid circuit subsystem also includes: a check valve assembly and a filter, wherein... Each inlet of the one-way valve group is connected to one outlet of the circulating pump group, and each outlet of the one-way valve group is connected to the inlet of the electric three-way valve. The filter is located at the output end of the liquid circuit subsystem.

4. The energy-saving liquid cooling system according to claim 2, characterized in that, The hydraulic subsystem also includes: a safety valve, wherein... The safety valve is installed in the passage between the circulating pump group and the electric three-way valve, the outlet of the safety valve is connected to the inlet of the liquid tank, and the safety valve is electrically connected to the control module; When the control module determines that the pressure of the hydraulic subsystem exceeds the preset pressure, it controls the safety valve to open and release pressure.

5. The energy-saving liquid cooling system according to claim 2, characterized in that, The liquid circuit subsystem further includes: a first temperature sensor and a second temperature sensor, wherein... Both the first temperature sensor and the second temperature sensor are electrically connected to the control module; The first temperature sensor is located at the liquid-side outlet of the heat exchanger, and the second temperature sensor is located at the liquid-side outlet of the dry cooler.

6. The energy-saving liquid cooling system according to claim 1, characterized in that, The fluorine circuit subsystem includes: a compressor, a condenser, and an electronic expansion valve, wherein, Both the compressor and the electronic expansion valve are electrically connected to the control module. The compressor inlet is connected to the refrigerant-side outlet of the heat exchanger, and the compressor outlet is connected to the refrigerant-side inlet of the condenser. The compressor is used to adjust its operating frequency based on the control signal from the control module. The refrigerant outlet of the condenser is connected to the inlet of the electronic expansion valve, and the air inlet of the condenser is connected to the second output terminal of the air-cooled heat dissipation module. The condenser is used to allow the refrigerant inside to condense naturally based on the airflow output by the air-cooled heat dissipation module. The outlet of the electronic expansion valve is connected to the fluorine side inlet of the heat exchanger, and the electronic expansion valve is used to throttle and reduce the pressure of the refrigerant flowing through it.

7. A control method for an energy-saving liquid cooling system, characterized in that, Applied to the control module according to any one of claims 1 to 6, the method comprises: The current operating mode of the liquid cooling system is obtained, the temperature of the liquid-side outlet of the heat exchanger is obtained as the first acquisition temperature, and the temperature of the liquid-side outlet of the dry cooler in the liquid circuit subsystem is obtained as the second acquisition temperature. After obtaining the first preset temperature and the second preset temperature under the current operating mode of the liquid cooling system, the first collected temperature is compared with the first preset temperature, and the second collected temperature is compared with the second preset temperature, respectively. Based on the comparison results, the flow direction and flow rate of the refrigerant in the liquid circuit subsystem, the cooling intensity of the fluorine circuit subsystem, and the heat dissipation intensity of the air-cooled heat dissipation module are adjusted. The operating modes include: natural cooling mode, hybrid refrigeration mode with natural cooling as the main mode, and hybrid refrigeration mode with mechanical refrigeration as the main mode.

8. The control method according to claim 7, characterized in that, When the liquid cooling system is in natural cooling mode, the process of adjusting the flow direction and flow rate of the refrigerant in the liquid circuit subsystem, the cooling intensity of the fluorine circuit subsystem, and the heat dissipation intensity of the air-cooled heat dissipation module based on the comparison results includes: Open the first outlet of the electric three-way valve, close the second outlet of the electric three-way valve, and turn off the compressor so that all the refrigerant flows to the dry cooler; Based on the comparison result between the second collected temperature and the second preset temperature, the heat dissipation intensity of the air-cooled heat dissipation module is adjusted. When it is determined that the second collected temperature is greater than the second preset temperature, the air-cooled heat dissipation module is controlled to increase the heat dissipation intensity. Determine whether the heat dissipation intensity of the air-cooled heat dissipation module is the maximum heat dissipation intensity; When it is determined that the heat dissipation intensity of the air-cooled heat dissipation module is the maximum heat dissipation intensity, and the second collected temperature remains unchanged or rises within a preset time period, the liquid cooling system is controlled to switch to a hybrid cooling mode with natural cooling as the main mode.

9. The control method according to claim 7, characterized in that, When the liquid cooling system is in a hybrid refrigeration mode dominated by natural cooling, the process of adjusting the flow direction and flow rate of the refrigerant in the liquid circuit subsystem, the cooling intensity of the fluorine circuit subsystem, and the heat dissipation intensity of the air-cooled heat dissipation module based on the comparison results includes: The compressor is controlled to operate at the lowest frequency, and the air-cooled heat dissipation module is controlled to operate at the maximum heat dissipation intensity. Based on the comparison result between the second collected temperature and the second preset temperature, the heat dissipation intensity of the air-cooled heat dissipation module is adjusted, and based on the comparison result between the first collected temperature and the first preset temperature, the opening degree of the first outlet and the second outlet of the electric three-way valve is adjusted. When it is determined that the first collected temperature is less than the first preset temperature, the electric three-way valve is controlled to increase the opening of the second outlet; Determine whether the opening degree of the second outlet of the electric three-way valve is greater than or equal to the preset opening degree; If so, the liquid cooling system is switched to natural cooling mode; when the second collected temperature is determined to be greater than the second preset temperature, the air-cooled heat dissipation module is controlled to increase the heat dissipation intensity. Determine whether the heat dissipation intensity of the air-cooled heat dissipation module is the maximum heat dissipation intensity; If so, and after the second collected temperature remains unchanged or rises within a preset time period, the liquid cooling system is controlled to switch to a hybrid cooling mode with mechanical refrigeration as the main component.

10. The control method according to claim 7, characterized in that, When the liquid cooling system is in a hybrid cooling mode dominated by mechanical refrigeration, the process of adjusting the flow direction and flow rate of the refrigerant in the liquid circuit subsystem, the cooling intensity of the fluorine circuit subsystem, and the heat dissipation intensity of the air-cooled heat dissipation module based on the comparison results includes: The compressor is controlled to operate at the lowest frequency, and the air-cooled heat dissipation module is controlled to operate at the maximum heat dissipation intensity. Based on the comparison result between the second collected temperature and the second preset temperature, the heat dissipation intensity of the air-cooled heat dissipation module is adjusted, and based on the comparison result between the first collected temperature and the first preset temperature, the opening degree of the first outlet and the second outlet of the electric three-way valve is adjusted. When it is determined that the first collected temperature is lower than the first preset temperature, the fluorine circuit subsystem is controlled to reduce the cooling intensity. Determine whether the cooling capacity of the fluorine circuit subsystem is the minimum cooling capacity; If so, and after the first collected temperature drops within a preset time period, control the liquid cooling system to switch to a hybrid cooling mode with natural cooling as the main mode; When it is determined that the second collected temperature is greater than the second preset temperature, the electric three-way valve is controlled to reduce the opening of the first outlet; Determine whether the cooling capacity of the fluorine circuit subsystem is the maximum cooling capacity; If so, the liquid cooling system is controlled to maintain the current operating mode.

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