Liquid cooling system, data center, and control method and control device of liquid cooling system

Abstract

The invention discloses a liquid cooling system, a data center and a control method and a control device of the liquid cooling system, the liquid cooling system comprises a condensing device, a heat exchange device, a first pipeline and a second pipeline, an output port of the condensing device is communicated with an input port of the first pipeline, and an output port of the heat exchange device is communicated with an output port of the second pipeline; an output port of the first pipeline is communicated with a primary side input port of the heat exchange device, a primary side output port of the heat exchange device is communicated with an input port of the second pipeline, an output port of the second pipeline is communicated with an input port of the condensing device, and the first pipeline and the second pipeline are used for circulating fluorine. And the condensing device is used for converting input gaseous fluorine into liquid fluorine. According to the scheme, compared with the scheme that water serves as the cooling medium of the primary side, the anti-freezing problem during low-temperature use can be avoided.

Description

Technical Field

[0001] The present application belongs to the field of heat dissipation technology, and specifically relates to a liquid cooling system, a data center, and a control method and control device for the liquid cooling system. Background Art

[0002] With the continuous expansion of data center scale, the continuous improvement of computing density, and the rapid development of GPU (Graphics Processing Unit) training and inference computing power, traditional air cooling technology has gradually failed to meet the needs of efficient heat dissipation. Liquid cooling technology has gradually become the mainstream solution due to its higher unit heat dissipation capacity and energy-saving characteristics.

[0003] A liquid-cooled CDU (Coolant Distribution Unit) is a cooling heat exchange distribution unit that exchanges heat between the primary cold source and the secondary liquid-cooled servers. It also serves as a distribution unit for cooling liquid to the secondary liquid-cooled servers. In related technologies, liquid cooling systems use water as the cooling medium on both the primary (i.e., outdoor) and secondary (i.e., indoor) sides, which poses anti-freezing issues when used at low temperatures. Summary of the Invention

[0004] The present application aims to provide a liquid cooling system, a data center, a control method and a control device for the liquid cooling system, which can solve the problem of low-temperature antifreeze.

[0005] In a first aspect, an embodiment of the present application discloses a liquid cooling system, comprising: a condensing device, a heat exchange device, a first pipeline and a second pipeline, wherein: the output port of the condensing device is connected to the input port of the first pipeline, the output port of the first pipeline is connected to the primary side input port of the heat exchange device, the primary side output port of the heat exchange device is connected to the input port of the second pipeline, and the output port of the second pipeline is connected to the input port of the condensing device, wherein the first pipeline and the second pipeline are used to circulate fluorine, and the condensing device is used to convert the input gaseous fluorine into liquid fluorine.

[0006] In a second aspect, an embodiment of the present application discloses a data center, comprising: a computer room, a server, a third pipeline, and the liquid cooling system described in the first aspect, wherein: the server is arranged in the computer room, the input port of the third pipeline is connected to the secondary side output port of the heat exchange device, the output port of the third pipeline is connected to the secondary side input port of the heat exchange device, and the third pipeline is used to circulate water to dissipate heat for the server.

[0007] In a third aspect, an embodiment of the present application discloses a control method for a liquid cooling system, which is applied to the data center described in the second aspect, including: determining the cooling load demand based on a preset water temperature and the actual water temperature output from the secondary side output port of the heat exchange device to the third pipeline; based on the cooling load demand, controlling the fan speed of the condensing device, the speed of the refrigerant pump, and the opening of the flow control device.

[0008] In a fourth aspect, an embodiment of the present application discloses a control device for a liquid cooling system, which is applied to the data center described in the second aspect, and includes: a determination module for determining the cooling load demand based on a preset water temperature and the actual water temperature output from the secondary side output port of the heat exchange device to the third pipeline; a control module for controlling the fan speed of the condensing device, the speed of the refrigerant pump, and the opening of the flow control device based on the cooling load demand.

[0009] In a fifth aspect, an embodiment of the present application provides an electronic device comprising a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the programs or instructions are executed by the processor, the steps of the method described in the third aspect are implemented.

[0010] In a sixth aspect, an embodiment of the present application provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the third aspect are implemented.

[0011] In the seventh aspect, an embodiment of the present application provides a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium, and the computer program includes program instructions. When the program instructions are executed by a computer, the computer executes: the steps of the method described in the third aspect.

[0012] An embodiment of the present application provides a liquid cooling system comprising a condensing device, a heat exchange device, a first pipeline, and a second pipeline. The output port of the condensing device is connected to the input port of the first pipeline, which is connected to the primary-side input port of the heat exchange device, which is connected to the input port of the second pipeline, which is connected to the input port of the condensing device. The first and second pipelines are used to circulate fluorine, and the condensing device is used to convert the input gaseous fluorine into liquid fluorine. Compared to solutions using water as the primary-side cooling medium, the solution of the present application can avoid antifreeze issues during low-temperature use.

[0013] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which: Figure 1 This is a schematic structural diagram of a liquid cooling system disclosed in an embodiment of the present application; Figure 2 This is a schematic structural diagram of another liquid cooling system disclosed in an embodiment of the present application; Figure 3 A flow chart of a control method for a liquid cooling system disclosed in an embodiment of the present application; Figure 4 A control flow chart of a liquid cooling system disclosed in an embodiment of the present application; Figure 5 This is a control flow chart of another liquid cooling system disclosed in an embodiment of the present application; Figure 6 This is a schematic structural diagram of a control device for a liquid cooling system disclosed in an embodiment of the present application; Figure 7 A schematic diagram of the structure of an electronic device disclosed in an embodiment of the present application. DETAILED DESCRIPTION

[0015] The embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0016] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly refer to one or more of the features. Throughout the description of this application, unless otherwise specified, "plurality" means two or more. Furthermore, "and / or" in the specification and claims refers to at least one of the connected entities, and the character " / " generally indicates an "or" relationship between the connected entities.

[0017] In the description of this application, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connected" should be understood in a broad sense. For example, they can refer to direct connection, indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application.

[0018] like Figure 1As shown, an embodiment of the present application discloses a liquid cooling system, comprising: a condensing device 110, a heat exchange device 120, a first pipeline 130 and a second pipeline 140, wherein: the output port of the condensing device 110 is connected to the input port of the first pipeline 130, the output port of the first pipeline 130 is connected to the primary side input port of the heat exchange device 120, the primary side output port of the heat exchange device 120 is connected to the input port of the second pipeline 140, the output port of the second pipeline 140 is connected to the input port of the condensing device 110, wherein the first pipeline 130 and the second pipeline 140 are used to circulate fluorine, and the condensing device 110 is used to convert the input gaseous fluorine into liquid fluorine.

[0019] Illustratively, the condensing device 110 of the present application may be an air-cooled condenser, and the heat exchange device 120 may be a fluorine-water heat exchanger, such as a plate heat exchanger.

[0020] In the present application, heat exchanger 120 may include a primary input port, a primary output port, a secondary input port, and a secondary output port. The primary input port is connected to the primary output port, and the secondary input port is connected to the secondary output port. The output port of condenser 110 is connected to the input port of first pipeline 130, which is connected to the primary input port of heat exchanger 120. The primary output port of heat exchanger 120 is connected to the input port of second pipeline 140, which is connected to the input port of condenser 110. First pipeline 130 and second pipeline 140 are used to circulate fluorine. Condenser 110 is used to convert the input gaseous fluorine into liquid fluorine. The input port of third pipeline 1150 is connected to the secondary output port of heat exchanger 120, and the output port of third pipeline 1150 is connected to the secondary input port of heat exchanger 120. Third pipeline 1150 is used to circulate water to dissipate heat for servers 1140 located in the computer room.

[0021] When the liquid cooling system in the present application is working, the water in the third pipeline 1150 dissipates heat to the server 1140 in the computer room, liquid fluorine flows in the first pipeline 130, and the high-temperature water in the third pipeline 1150 exchanges heat with the liquid fluorine in the heat exchange device 120, causing the liquid fluorine to phase change and evaporate into gaseous fluorine. The gaseous fluorine then flows into the condensing device 110 through the second pipeline 140 to exchange heat with the outdoor air, cools into liquid fluorine, and enters the next heat dissipation cycle, thereby achieving heat dissipation for the server 1140 set in the computer room.

[0022] In one implementation, the condensing device 110 may be subjected to a water-wetting film or water-spraying treatment to reduce the dry-bulb temperature outside the condensing device 110 , thereby achieving energy saving when the condensing device 110 is in operation.

[0023] In the present application, fluorine is used as the cooling medium on the primary side (i.e., the outdoor side) of the liquid cooling system. Furthermore, after the fluorine exchanges heat with the cooling medium water on the secondary side (i.e., the indoor side) in the heat exchange device 120, the gaseous fluorine is converted into liquid fluorine through the condensing device 110, and then the next heat dissipation cycle is carried out. Compared with the solution using water as the cooling medium on the primary side, the antifreeze problem when used at low temperatures can be avoided. In addition, compared with the solution using water as the cooling medium on the primary side, the liquid cooling system of this solution can avoid the consumption of water resources and improve its applicability in waterless or water-scarce areas. Moreover, compared with the solution using water as the cooling medium on the primary side, the primary side of this solution does not require water filtration or water purification equipment, which can reduce the complexity of the primary side structure.

[0024] An embodiment of the present application provides a liquid cooling system comprising a condensing device 110, a heat exchange device 120, a first pipeline 130, and a second pipeline 140. The output port of the condensing device 110 is connected to the input port of the first pipeline 130, which is in turn connected to the primary-side input port of the heat exchange device 120. The primary-side output port of the heat exchange device 120 is connected to the input port of the second pipeline 140, which is in turn connected to the input port of the condensing device 110. The first and second pipelines 130 and 140 are used to circulate fluorine, and the condensing device 110 is used to convert the input gaseous fluorine into liquid fluorine. Compared to a solution using water as the primary-side cooling medium, the solution of the present application can avoid antifreeze issues during low-temperature operation.

[0025] In one implementation, the liquid cooling system may further include a control device (not shown), electrically connected to the condensing device 110, for controlling the fan speed of the condensing device 110. The control device of the present application may be a control device within a fluorinated water-cooled CDU. In other words, the fan speed of the condensing device 110 may be controlled by the control device within the fluorinated water-cooled CDU. Furthermore, the heat exchange device 120 described above may also be a structure within a fluorinated water-cooled CDU. The fluorinated water-cooled CDU may further include a secondary-side liquid supply pump, associated secondary-side water system filtration devices, and associated secondary-side water system purification devices.

[0026] It should be noted that the devices that need to be controlled and monitored in the liquid cooling system (such as the display panel, the fan drive board of the condensing device, the refrigerant pump control drive board, etc.) can be electrically connected to the control device through R485 communication, and the control device receives data and sends control instructions to control each device.

[0027] In one implementation, Figure 2As shown, the liquid cooling system may further include a refrigerant pump 150, which is disposed on the first pipeline 130. The control device is electrically connected to the refrigerant pump 150, and the control device is further configured to control the rotational speed of the refrigerant pump 150. In the present application, the refrigerant pump 150 is used to circulate the liquid fluorine on the first pipeline 130, and the control device controls the rotational speed of the refrigerant pump 150, thereby controlling the circulation speed of the liquid fluorine in the first pipeline 130.

[0028] For example, the refrigerant pump 150 and the condensing device 110 may be integrated into one module or placed separately, and this application does not impose any specific limitation on this.

[0029] In one implementation, Figure 2 As shown, the liquid cooling system may further include a liquid storage tank 160, which is disposed on the first pipeline 130 and is located between the input port of the first pipeline 130 and the pump inlet of the refrigerant pump 150. The liquid storage tank 160 may be used to store liquid fluorine flowing out of the condensing device 110 to cooperate with the operation of the refrigerant pump 150.

[0030] In one implementation, Figure 2 As shown, the liquid cooling system may further include a flow control device 170, which is disposed on the first pipeline 130 and is located near the output port of the first pipeline 130. A control device is electrically connected to the flow control device 170 and is further configured to control the opening of the flow control device 170. By controlling the opening of the flow control device 170, the speed at which fluorine flows through the heat exchanger 120 can be controlled, thereby controlling the heat dissipation rate to the secondary side. It should be noted that the liquid fluorine in the first pipeline 130 can be converted into a gaseous and liquid state by passing through the flow control device 170.

[0031] For example, the flow control device 170 can be integrated into the fluorine-water liquid-cooled CDU. For example, the flow control device 170 can be a throttle valve, which can be an electronic expansion valve or a thermal throttle valve, and the specific throttle valve can be selected according to actual needs.

[0032] In one implementation, Figure 2As shown, the above-mentioned liquid cooling system may further include a first pressure detection device 180 and a second pressure detection device 190, wherein the first pressure detection device 180 and the second pressure detection device 190 are arranged on the first pipeline 130, the first pressure detection device 180 is located before the pump inlet of the refrigerant pump 150, and the second pressure detection device 190 is located after the pump outlet of the refrigerant pump 150, the first pressure detection device 180 and the second pressure detection device 190 are electrically connected to the control device, and the control device is also used to control the rotation speed of the refrigerant pump 150 or the opening degree of the flow control device 170 according to the first pressure value detected by the first pressure detection device 180 and the second pressure value detected by the second pressure detection device 190.

[0033] Exemplarily, the first pressure detection device 180 and the second pressure detection device 190 can be pressure sensors. When the control device determines that the difference between the second pressure value and the first pressure value is greater than a preset threshold, the control device controls the speed of the refrigerant pump 150 to be reduced, or the control device controls the opening of the flow control device 170 to be increased.

[0034] It should be noted that the first pressure detection device 180 and the second pressure detection device 190 may also be other structures capable of realizing pressure detection.

[0035] In one implementation, Figure 2 As shown, the above-mentioned liquid cooling system may further include a first temperature detection device 1100 and a third pressure detection device 1110, the first temperature detection device 1100 and the third pressure detection device 1110 are arranged on the second pipeline 140, the third pressure detection device 1110 is located near the input port of the second pipeline 140, the first temperature detection device 1100 is located between the input port of the second pipeline 140 and the third pressure detection device 1110, the first temperature detection device 1100 and the third pressure detection device 1110 are electrically connected to the control device, and the control device is also used to control the opening of the flow control device 170 according to the first temperature value detected by the first temperature detection device 1100 and the third pressure value detected by the third pressure detection device 1110.

[0036] Exemplarily, the first temperature detection device 1100 may be a temperature sensor, and the third pressure detection device 1110 may be a pressure sensor.

[0037] When the control device receives the third pressure value, it determines the saturation temperature corresponding to the third pressure value, and then subtracts the saturation temperature from the first temperature value to obtain the superheat. Based on the obtained superheat, the control device controls the opening of the flow control device 170, and the opening of the flow control device 170 is inversely proportional to the superheat.

[0038] It should be noted that the first temperature detection device 1100 may also be other structures capable of realizing temperature detection, and the third pressure detection device 1110 may also be other structures capable of realizing pressure detection.

[0039] In one implementation, Figure 2 As shown, the above-mentioned liquid cooling system can also include a second temperature detection device, which is arranged on the first pipeline 130 and is located near the output port of the first pipeline 130. The second temperature detection device is used to detect the temperature of the fluorine input from the first pipeline 130 to the heat exchange device 120.

[0040] In one implementation, Figure 2 As shown, the above-mentioned liquid cooling system may further include a fourth pressure detection device 1120, which is arranged on the second pipeline 140, and the fourth pressure detection device 1120 is located near the output port of the second pipeline 140. The fourth pressure detection device 1120 is electrically connected to the control device, and the control device is also used to control the fan speed according to the fourth pressure value detected by the fourth pressure detection device 1120.

[0041] In the present application, the control device can control the fan speed of the condensing device 110 based on the pressure of the fluorine output from the second pipeline 140, so that the fluorine output from the condensing device 110 reaches the target condensation pressure.

[0042] In one implementation, Figure 2 As shown, the liquid cooling system may further include an on-off device 1130, which is provided on the second pipeline 140. When the liquid cooling system needs to be repaired, the on-off device 1130 may be controlled to be disconnected. For example, the on-off device 1130 may be a ball valve.

[0043] When this solution is adopted, the CDU circulation system adopts a phase change heat exchange process. When transmitting the same amount of cooling capacity, the required transport medium power is lower than the water transport power in the traditional water heat exchange process, thereby achieving energy saving, effectively reducing energy consumption costs and improving energy utilization efficiency.

[0044] An embodiment of the present application discloses a data center, comprising: a computer room, a server 1140, a third pipeline 1150, and the liquid cooling system described above, wherein: the server 1140 is arranged in the computer room, the input port of the third pipeline 1150 is connected to the secondary side output port of the heat exchange device 120, the output port of the third pipeline 1150 is connected to the secondary side input port of the heat exchange device 120, and the third pipeline 1150 is used to circulate water to dissipate heat for the server 1140.

[0045] The data center in this application can avoid antifreeze problems when used at low temperatures, and can improve its applicability in waterless or water-scarce areas.

[0046] The present application embodiment discloses a control method for a liquid cooling system, which is applied to the data center described above. Figure 3 As shown, the control method of the liquid cooling system includes the following steps: S320: Determine a cooling load requirement based on a preset water temperature and an actual water temperature output from the secondary side outlet of the heat exchange device to the third pipeline.

[0047] For example, the control device may determine the cooling load requirement by calculating the preset water temperature T1 minus the actual water temperature T2 / the temperature setting accuracy A.

[0048] S340: Based on the cooling load demand, control the fan speed of the condensing device, the speed of the refrigerant pump, and the opening of the flow control device.

[0049] After determining the cooling load demand, the control device can use the PID algorithm to control the fan speed of the condensing device, the speed of the refrigerant pump, and the opening of the flow control device based on the cooling load demand, so that the actual water temperature output from the secondary side output port to the third pipeline quickly reaches the preset temperature, thereby realizing heat dissipation on the secondary side.

[0050] Moreover, since the present application adjusts the condensation pressure of the fluorine input to the first pipeline by controlling the fan speed of the condensing device, the pressure signal is transmitted quickly and accurately compared to the temperature signal, and can achieve precise control of the water temperature output from the secondary side output port of the heat exchange device, thereby providing a stable and reliable cooling environment for the data center.

[0051] An embodiment of the present application provides a control method for a liquid cooling system, which determines the cooling load demand based on a preset water temperature and the actual water temperature output from the secondary side output port of the heat exchange device to the third pipeline, and then controls the fan speed of the condensing device, the speed of the refrigerant pump, and the opening of the flow control device based on the cooling load demand, thereby improving the control accuracy of the water temperature output from the secondary side output port of the heat exchange device.

[0052] In one implementation, Figure 4As shown, before determining the cooling load demand based on the preset water temperature and the actual water temperature output from the secondary side output port of the heat exchange device to the third pipeline, it can also include: when the liquid cooling system is turned on and there is a cooling load demand, controlling the fan of the condensing device to run at a first preset speed, the refrigerant pump to run at a second preset speed, and the flow control device to run at a preset opening for a preset time.

[0053] For example, the first preset speed can be 100%, the second preset speed can be 50%, the preset opening can be 60%, and the preset duration can be 3 minutes. This allows the liquid cooling system to start quickly and gradually stabilize, effectively improving the startup efficiency and stability of the liquid cooling system. It should be noted that this application does not specifically limit the values of the first preset speed, the second preset speed, the preset opening, and the preset duration, and they can be selected according to actual needs.

[0054] In one implementation, controlling the fan speed of the condensing device, the speed of the refrigerant pump, and the opening of the flow control device based on the refrigeration load demand may include: when the refrigeration load demand is less than a first threshold, controlling the refrigerant pump to operate at the lowest speed; when the refrigeration load demand is less than a second threshold, controlling the liquid cooling system to shut down, wherein the second threshold is less than the first threshold.

[0055] That is to say, if Figure 5 As shown, when the cooling load demand is less than the first threshold, in order to avoid fluctuations in the water temperature output from the secondary side output port of the heat exchanger due to the refrigerant pump stopping and the unit having no cooling output, the control device controls the refrigerant pump to operate at the lowest speed and maintains the water temperature output from the secondary side output port of the heat exchanger by controlling the fan speed of the condensing device.

[0056] When the cooling load demand is less than the second threshold, the control device controls the liquid cooling system to shut down.

[0057] In one implementation, before determining the cooling load demand based on the preset water temperature and the actual water temperature output from the secondary side output port of the heat exchange device to the third pipeline, the method may also include: obtaining the outdoor temperature of the liquid cooling system; and controlling the fan speed of the condensing device based on the outdoor temperature so that the fluorine output by the condensing device reaches the target condensing pressure.

[0058] In this application, the control device can use a PID algorithm to adjust the fan speed of the condensing device based on the outdoor temperature of the liquid cooling system so that the fluorine output from the condensing device reaches the target condensing pressure. The condensing temperature corresponding to the target condensing pressure can be 35°C. The control device then determines the cooling load demand based on the preset water temperature T1 and the actual water temperature T2 output from the secondary side output port of the heat exchanger to the third pipeline. The control device then uses the PID algorithm to adjust the speed of the refrigerant pump to adjust the flow rate of the fluorine so that the actual water temperature output from the secondary side output port of the heat exchanger to the third pipeline quickly reaches the preset water temperature. In addition, to avoid water temperature fluctuations caused by the unit having no cooling output due to the refrigerant pump stopping, the refrigerant pump maintains the minimum cooling output when the cooling load demand decreases until the refrigerant pump is gradually stopped after reaching -150% of the cooling load demand. However, the fan of the condensing device can be delayed for a preset time (for example, 3 minutes) to shut down in order to quickly respond to demand.

[0059] The control method of the liquid cooling system provided in the embodiment of the present application can be executed by a control device of the liquid cooling system. In the embodiment of the present application, the control device of the liquid cooling system is used as an example to illustrate the control method of the liquid cooling system provided in the embodiment of the present application.

[0060] Figure 6 This is a schematic diagram of the structure of a control device for a liquid cooling system disclosed in an embodiment of the present application. Figure 6 As shown, the control device 600 of the liquid cooling system includes: a determination module 610 and a control module 620 .

[0061] In the present application, the determination module 610 is used to determine the refrigeration load demand based on the preset water temperature and the actual water temperature output from the secondary side output port of the heat exchange device to the third pipeline; the control module 620 is used to control the fan speed of the condensing device, the speed of the refrigerant pump, and the opening of the flow control device based on the refrigeration load demand.

[0062] In one implementation, the control module 620 is also used to control the fan of the condensing device to operate at a first preset speed, the refrigerant pump to operate at a second preset speed, and the flow control device to operate at a preset opening for a preset time when the liquid cooling system is turned on and there is a cooling load demand before determining the cooling load demand based on the preset water temperature and the actual water temperature output to the third pipeline from the secondary side output port of the heat exchange device.

[0063] In one implementation, the control module 620 controls the fan speed of the condensing device, the speed of the refrigerant pump, and the opening of the flow control device based on the refrigeration load demand, including: when the refrigeration load demand is less than a first threshold, controlling the refrigerant pump to operate at the lowest speed; when the refrigeration load demand is less than a second threshold, controlling the liquid cooling system to shut down, wherein the second threshold is less than the first threshold.

[0064] In one implementation, the above-mentioned control device also includes: an acquisition module for obtaining the outdoor temperature of the liquid cooling system before determining the refrigeration load demand based on the preset water temperature and the actual water temperature output from the secondary side output port of the heat exchange device to the third pipeline; the control module 620 is also used to control the fan speed of the condensing device based on the outdoor temperature so that the fluorine output by the condensing device reaches the target condensing pressure.

[0065] The control device for the liquid cooling system provided in the embodiment of the present application can implement each process implemented in the embodiment of the control method for the liquid cooling system. To avoid repetition, they will not be described here.

[0066] Alternatively, as Figure 7 As shown, an embodiment of the present application also provides an electronic device 700, including a processor 701 and a memory 702, wherein the memory 702 stores a program or instruction that can be run on the processor 701, and when the program or instruction is executed by the processor 701, the various steps of the control method embodiment of the above-mentioned liquid cooling system are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0067] It should be noted that the electronic devices in the embodiments of the present application include mobile electronic devices and non-mobile electronic devices.

[0068] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned liquid cooling system control method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0069] The processor is the processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0070] An embodiment of the present application also provides a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium, and the computer program includes program instructions. When the program instructions are executed by a computer, the computer is caused to execute: the steps of the control method of the liquid cooling system as described above.

[0071] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0072] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A liquid cooling system, characterized in that: include: Condensing device, heat exchange device, first pipeline and second pipeline, wherein: The output port of the condensing device is connected to the input port of the first pipeline, the output port of the first pipeline is connected to the primary side input port of the heat exchange device, the primary side output port of the heat exchange device is connected to the input port of the second pipeline, and the output port of the second pipeline is connected to the input port of the condensing device, wherein the first pipeline and the second pipeline are used to circulate fluorine, and the condensing device is used to convert the input gaseous fluorine into liquid fluorine.

2. The liquid cooling system according to claim 1, characterized in that It also includes a control device, which is electrically connected to the condensing device and is used to control the fan speed of the condensing device.

3. The liquid cooling system according to claim 2, characterized in that: It also includes a refrigerant pump, which is arranged on the first pipeline. The control device is electrically connected to the refrigerant pump, and the control device is also used to control the speed of the refrigerant pump.

4. The liquid cooling system according to claim 3, characterized in that It also includes a liquid storage tank, which is arranged on the first pipeline and is located between the input port of the first pipeline and the pump inlet of the refrigerant pump.

5. The liquid cooling system according to claim 3, characterized in that: It also includes a flow control device, which is arranged on the first pipeline and close to the output port of the first pipeline. The control device is electrically connected to the flow control device and is also used to control the opening of the flow control device.

6. The liquid cooling system according to claim 5, characterized in that: It also includes a first pressure detection device and a second pressure detection device, the first pressure detection device and the second pressure detection device are arranged on the first pipeline, the first pressure detection device is located before the pump inlet of the refrigerant pump, and the second pressure detection device is located after the pump outlet of the refrigerant pump, the first pressure detection device and the second pressure detection device are electrically connected to the control device, and the control device is also used to control the speed of the refrigerant pump or the opening of the flow control device according to the first pressure value detected by the first pressure detection device and the second pressure value detected by the second pressure detection device.

7. The liquid cooling system according to claim 5, characterized in that It also includes a first temperature detection device and a third pressure detection device, the first temperature detection device and the third pressure detection device are arranged on the second pipeline, the third pressure detection device is located near the input port of the second pipeline, the first temperature detection device is located between the input port of the second pipeline and the third pressure detection device, the first temperature detection device and the third pressure detection device are electrically connected to the control device, and the control device is also used to control the opening of the flow control device according to the first temperature value detected by the first temperature detection device and the third pressure value detected by the third pressure detection device.

8. The liquid cooling system according to claim 2, characterized in that: It also includes a fourth pressure detection device, which is arranged on the second pipeline. The fourth pressure detection device is located near the output port of the second pipeline. The fourth pressure detection device is electrically connected to the control device. The control device is also used to control the fan speed according to the fourth pressure value detected by the fourth pressure detection device.

9. The liquid cooling system according to claim 1, wherein: It also includes an on-off device, which is arranged on the second pipeline.

10. A data center, characterized in that: include: A computer room, a server, a third pipeline, and the liquid cooling system according to any one of claims 1 to 9, wherein: The server is set in the computer room, the input port of the third pipeline is connected to the secondary side output port of the heat exchange device, the output port of the third pipeline is connected to the secondary side input port of the heat exchange device, and the third pipeline is used to circulate water to dissipate heat for the server.

11. A method for controlling a liquid cooling system, characterized in that: The data center according to claim 10 comprises: Determine the cooling load requirement based on the preset water temperature and the actual water temperature output from the secondary side outlet of the heat exchange device to the third pipeline; Based on the refrigeration load demand, the fan speed of the condensing device, the speed of the refrigerant pump, and the opening of the flow control device are controlled.

12. The control method according to claim 11, characterized in that: Before determining the cooling load demand based on the preset water temperature and the actual water temperature outputted from the secondary side outlet of the heat exchange device to the third pipeline, the method further includes: When the liquid cooling system is turned on and there is a cooling load demand, the fan of the condensing device is controlled to run at a first preset speed, the refrigerant pump is controlled to run at a second preset speed, and the flow control device is controlled to run at a preset opening for a preset time.

13. The control method according to claim 11, characterized in that: The controlling of the fan speed of the condensing device, the speed of the refrigerant pump, and the opening of the flow control device based on the refrigeration load demand includes: When the cooling load demand is less than a first threshold, controlling the refrigerant pump to operate at a minimum speed; When the cooling load demand is less than a second threshold, the liquid cooling system is controlled to shut down, wherein the second threshold is less than the first threshold.

14. The control method according to claim 11, characterized in that: Before determining the cooling load demand based on the preset water temperature and the actual water temperature outputted from the secondary side outlet of the heat exchange device to the third pipeline, the method further includes: Get the outdoor temperature of the liquid cooling system; Based on the outdoor temperature, the fan speed of the condensing device is controlled so that the fluorine output by the condensing device reaches the target condensing pressure.

15. A control device for a liquid cooling system, characterized in that: The data center according to claim 10 comprises: a determination module, configured to determine a cooling load requirement based on a preset water temperature and an actual water temperature outputted from a secondary side outlet of the heat exchange device to the third pipeline; The control module is used to control the fan speed of the condensing device, the speed of the refrigerant pump, and the opening of the flow control device based on the refrigeration load demand.

16. An electronic device, characterized in that: The method comprises a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the control method of the liquid cooling system according to any one of claims 11 to 14 are implemented.

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