Liquid cooling system and data center

Abstract

The utility model discloses a liquid cooling system and a data center, 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, an output port of the first pipeline is communicated with a primary side input port of the heat exchange device, and an output port of the second pipeline is communicated with a secondary 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, 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] This application belongs to the field of heat dissipation technology, specifically relating to a liquid cooling system and a data center. Background Technology

[0002] As data centers continue to expand in scale, computing density continues to increase, and the computing power of GPUs (Graphics Processing Units) for training and inference rapidly develops, traditional air cooling technology is gradually becoming insufficient to meet the demand for efficient heat dissipation. Liquid cooling technology, due to its higher heat dissipation capacity per unit and energy-saving characteristics, is gradually becoming the mainstream solution.

[0003] A liquid-cooled CDU (Coolant Distribution Unit) is a heat exchange and distribution unit that serves as both the primary-side cold source and the secondary-side liquid-cooled server cooling unit, as well as the distribution unit for supplying coolant to the secondary-side liquid-cooled server. In related technologies, liquid cooling systems use water as the cooling medium on both the primary side (outdoor side) and the secondary side (indoor side), which presents a freeze protection issue when used at low temperatures. Utility Model Content

[0004] This application aims to provide a liquid cooling system and data center that can solve the problem of low-temperature freeze protection.

[0005] In a first aspect, embodiments of this application disclose 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 for flowing fluorine, and the condensing device is used for converting the input gaseous fluorine into liquid fluorine.

[0006] Secondly, this application discloses a data center, including: a computer room, a server, a third pipeline, and the liquid cooling system described in the first aspect, wherein: the server is located in the computer room, the inlet of the third pipeline is connected to the secondary side output port of a heat exchange device, the outlet 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 from the server.

[0007] This application provides a liquid cooling system comprising a condenser, a heat exchanger, a first pipeline, and a second pipeline. The output port of the condenser 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 exchanger, the primary-side output port of the heat exchanger 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 condenser. The first and second pipelines are used for the flow of refrigerant, and the condenser is used to convert the input gaseous refrigerant into liquid refrigerant. Compared to using water as the primary-side cooling medium, this solution avoids the freezing problem during low-temperature operation.

[0008] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0009] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0010] Figure 1 This is a schematic diagram of the structure of a liquid cooling system disclosed in an embodiment of this application;

[0011] Figure 2 This is a schematic diagram of another liquid cooling system disclosed in an embodiment of this application;

[0012] Figure 3 This is a schematic flowchart of a control method for a liquid cooling system disclosed in an embodiment of this application;

[0013] Figure 4 This is a control flowchart of a liquid cooling system disclosed in an embodiment of this application;

[0014] Figure 5 This is a control flowchart of another liquid cooling system disclosed in an embodiment of this application;

[0015] Figure 6 This is a schematic diagram of the structure of a control device for a liquid cooling system disclosed in an embodiment of this application;

[0016] Figure 7 This is a schematic diagram of the structure of an electronic device disclosed in an embodiment of this application. Detailed Implementation

[0017] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0018] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0019] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0020] like Figure 1 As shown in the figure, this application discloses a liquid cooling system, including: a condenser 110, a heat exchanger 120, a first pipeline 130, and a second pipeline 140, wherein: the output port of the condenser 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 exchanger 120, the primary side output port of the heat exchanger 120 is connected to the input port of the second pipeline 140, and the output port of the second pipeline 140 is connected to the input port of the condenser 110, wherein the first pipeline 130 and the second pipeline 140 are used for the flow of fluorine, and the condenser 110 is used to convert the input gaseous fluorine into liquid fluorine.

[0021] For example, the condensing device 110 of this application can be an air-cooled condenser, and the heat exchange device 120 can be a fluorine-water heat exchanger, such as a plate heat exchanger.

[0022] In this application, the heat exchanger 120 may include a primary side inlet, a primary side outlet, a secondary side inlet, and a secondary side outlet. The primary side inlet and the primary side outlet are connected, and the secondary side inlet and the secondary side outlet are connected. The outlet of the condenser 110 is connected to the inlet of the first pipe 130, the outlet of the first pipe 130 is connected to the primary side inlet of the heat exchanger 120, the primary side outlet of the heat exchanger 120 is connected to the inlet of the second pipe 140, and the outlet of the second pipe 140 is connected to the inlet of the condenser 110. The first pipe 130 and the second pipe 140 are used for the flow of refrigerant. The condenser 110 is used to convert the input gaseous refrigerant into liquid refrigerant. The inlet of the third pipe 1150 is connected to the secondary side outlet of the heat exchanger 120, and the outlet of the third pipe 1150 is connected to the secondary side inlet of the heat exchanger 120. The third pipe 1150 is used for the flow of water to dissipate heat from the server 1140 located in the computer room.

[0023] When the liquid cooling system of this application is in operation, the water in the third pipe 1150 dissipates heat from the server 1140 in the computer room. Liquid fluorine flows in the first pipe 130. The high-temperature water in the third pipe 1150 exchanges heat with the liquid fluorine in the heat exchange device 120, causing the liquid fluorine to undergo a phase change and evaporate into gaseous fluorine. Then, the gaseous fluorine flows into the condensation device 110 through the second pipe 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 installed in the computer room.

[0024] In one implementation, the dry bulb temperature outside the condenser 110 can be reduced by applying a water wet film or water spray treatment to the condenser 110, thereby achieving energy saving during operation of the condenser 110.

[0025] In this application, fluorine is used as the cooling medium on the primary side (i.e., the outdoor side) of the liquid cooling system. After the fluorine exchanges heat with the cooling medium water on the secondary side (i.e., the indoor side) in the heat exchanger 120, the gaseous fluorine is converted into liquid fluorine by the condenser 110, and then the next heat dissipation cycle is performed. Compared with the scheme using water as the cooling medium on the primary side, the antifreeze problem can be avoided when using it at low temperatures. In addition, compared with the scheme using water as the cooling medium on the primary side, the liquid cooling system of this scheme can avoid water consumption and improve its applicability in waterless or water-scarce areas. Furthermore, compared with the scheme using water as the cooling medium on the primary side, the primary side of this scheme does not need to be equipped with water filtration and water purification devices, which can reduce the complexity of the primary side structure.

[0026] This application provides a liquid cooling system, which includes a condenser 110, a heat exchanger 120, a first pipe 130, and a second pipe 140. The output port of the condenser 110 is connected to the input port of the first pipe 130, the output port of the first pipe 130 is connected to the primary side input port of the heat exchanger 120, the primary side output port of the heat exchanger 120 is connected to the input port of the second pipe 140, and the output port of the second pipe 140 is connected to the input port of the condenser 110. The first pipe 130 and the second pipe 140 are used for the flow of refrigerant, and the condenser 110 is used to convert the input gaseous refrigerant into liquid refrigerant. Compared with the solution using water as the primary cooling medium, the solution of this application can avoid the problem of freezing at low temperatures.

[0027] In one implementation, the aforementioned liquid cooling system may further include a control device (not shown in the figure), which is electrically connected to the condenser 110 and is used to control the fan speed of the condenser 110. The control device in this application can be a control device in a fluorinated water-cooled CDU, meaning that the fan speed of the condenser 110 can be controlled by the control device in the fluorinated water-cooled CDU. Furthermore, the heat exchange device 120 described above can also be a structure in a fluorinated water-cooled CDU, which may also include a secondary-side liquid supply pump, a secondary-side related water system filtration device, and a secondary-side related water system purification device, etc.

[0028] It should be noted that the devices that need to be controlled and monitored in the liquid cooling system (such as display panels, fan drive boards of the condenser unit, refrigerant pump control drive boards, etc.) can all be electrically connected to the control device via R485 communication, and the control device can receive data and send control commands to control each device.

[0029] In one implementation, such as Figure 2 As shown, the above-mentioned 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 is also used to control the rotational speed of the refrigerant pump 150. In this application, the refrigerant pump 150 enables the flow of liquid fluorine in the first pipeline 130, and by controlling the rotational speed of the refrigerant pump 150, the flow rate of liquid fluorine in the first pipeline 130 can be controlled.

[0030] For example, the refrigerant pump 150 and the condenser 110 may be integrated into a single module or placed separately, and this application does not impose any specific limitations on this.

[0031] In one implementation, such as Figure 2As shown, the above-mentioned liquid cooling system may further include a liquid storage tank 160, which is disposed on the first pipeline 130 and located between the inlet of the first pipeline 130 and the inlet of the refrigerant pump 150. The liquid storage tank 160 can be used to store liquid fluorine flowing out of the condenser 110 to cooperate with the operation of the refrigerant pump 150.

[0032] In one implementation, such as Figure 2 As shown, the above-mentioned liquid cooling system may further include a flow control device 170, which is disposed on the first pipeline 130 and located near the output port of the first pipeline 130. A control device is electrically connected to the flow control device 170 and is also used to control the opening degree of the flow control device 170. By controlling the opening degree of the flow control device 170, the flow rate of fluorine through the heat exchanger 120 can be controlled, thereby controlling the heat dissipation rate on the secondary side. It should be noted that the liquid fluorine in the first pipeline 130 can be converted into a gas-liquid dual-state when flowing through the flow control device 170.

[0033] For example, the flow control device 170 can be integrated into the fluorine-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, depending on the actual needs.

[0034] In one implementation, such as Figure 2 As shown, the liquid cooling system may further include a first pressure detection device 180 and a second pressure detection device 190. The first pressure detection device 180 and the second pressure detection device 190 are disposed 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. The control device is also used to control the rotational speed of the refrigerant pump 150 or the opening degree of the flow control device 170 based on 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.

[0035] For example, 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 to reduce the speed of the refrigerant pump 150, or controls to increase the opening of the flow control device 170.

[0036] It should be noted that the first pressure detection device 180 and the second pressure detection device 190 can also be other structures capable of pressure detection.

[0037] In one implementation, such as 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 disposed on the second pipeline 140. The third pressure detection device 1110 is located near the inlet of the second pipeline 140. The first temperature detection device 1100 is located between the inlet 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. The control device is also used to control the opening degree 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.

[0038] For example, the first temperature detection device 1100 can be a temperature sensor, and the third pressure detection device 1110 can be a pressure sensor.

[0039] Upon receiving a third pressure value, the control device determines the saturation temperature corresponding to the third pressure value. Then, by subtracting the saturation temperature from the first temperature value, it obtains the superheat. Based on the obtained superheat, the control device controls the opening degree of the flow control device 170. The opening degree of the flow control device 170 is inversely proportional to the superheat.

[0040] It should be noted that the first temperature detection device 1100 can also be any other structure capable of temperature detection, and the third pressure detection device 1110 can also be any other structure capable of pressure detection.

[0041] In one implementation, such as Figure 2 As shown, the above-mentioned liquid cooling system may also include a second temperature detection device, which is disposed on the first pipeline 130 and 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.

[0042] In one implementation, such as Figure 2As shown, the above-mentioned liquid cooling system may further include a fourth pressure detection device 1120, which is disposed on the second pipeline 140 and 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.

[0043] In this 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 condensing pressure.

[0044] In one implementation, such as Figure 2 As shown, the liquid cooling system may further include an on / off device 1130, which is disposed on the second pipeline 140. In the event of maintenance of the liquid cooling system, the on / off device 1130 can be controlled to disconnect. For example, the on / off device 1130 may be a ball valve.

[0045] When this solution is adopted, the CDU circulation system uses a phase change heat transfer process. Under the condition of transferring the same amount of cooling capacity, the power required for the transport medium is lower than that for the water transport in the traditional water heat exchange process, thereby achieving energy saving, effectively reducing energy consumption costs and improving energy utilization efficiency.

[0046] This application discloses a data center, including: a computer room, a server 1140, a third pipeline 1150, and the liquid cooling system described above, wherein: the server 1140 is located in the computer room, the inlet of the third pipeline 1150 is connected to the secondary side outlet of the heat exchange device 120, the outlet of the third pipeline 1150 is connected to the secondary side inlet of the heat exchange device 120, and the third pipeline 1150 is used to circulate water to dissipate heat from the server 1140.

[0047] The data center described in this application can avoid freezing problems when used at low temperatures, and can improve its applicability in waterless or water-scarce areas.

[0048] This application discloses a control method for a liquid cooling system, applied to the data center described above, such as... Figure 3 As shown, the control method for the liquid cooling system includes the following steps:

[0049] S320: Based on the preset water temperature and the actual water temperature output from the secondary side outlet of the heat exchanger to the third pipeline, determine the cooling load requirement.

[0050] For example, the control device can determine the cooling load demand by using the preset water temperature T1 - actual water temperature T2 / temperature setting accuracy A.

[0051] S340. Based on the cooling load demand, control the fan speed of the condensing unit, the speed of the refrigerant pump, and the opening degree of the flow control device.

[0052] After determining the cooling load demand, the control device can use a PID algorithm to control the fan speed of the condenser, the speed of the refrigerant pump, and the opening degree of the flow control device based on the cooling load demand, so that the actual water temperature output from the secondary side outlet to the third pipeline can quickly reach the preset temperature, thereby achieving heat dissipation on the secondary side.

[0053] Furthermore, since this 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, which can achieve precise control of the water temperature output from the secondary side of the heat exchange device, providing a stable and reliable cooling environment for the data center.

[0054] This application provides a control method for a liquid cooling system. By determining the cooling load demand based on the preset water temperature and the actual water temperature output from the secondary side outlet of the heat exchanger to the third pipeline, the method then controls the fan speed of the condenser, the speed of the refrigerant pump, and the opening degree of the flow control device based on the cooling load demand. This method can improve the control accuracy of the water temperature output from the secondary side outlet of the heat exchanger.

[0055] In one implementation, such as Figure 4 As 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, the method may further 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 at a second preset speed, and the flow control device at a preset opening for a preset time.

[0056] For example, the first preset rotational speed can be 100%, the second preset rotational speed can be 50%, the preset opening degree can be 60%, and the preset duration can be 3 minutes, enabling the liquid cooling system to start up quickly and gradually stabilize, effectively improving the start-up 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 rotational speed, the second preset rotational speed, the preset opening degree, and the preset duration, and they can be selected according to actual needs.

[0057] In one implementation, controlling the fan speed of the condenser, the speed of the refrigerant pump, and the opening degree of the flow control device based on the cooling load demand may include: controlling the refrigerant pump to operate at the lowest speed when the cooling load demand is less than a first threshold; and controlling the liquid cooling system to shut down when the cooling load demand is less than a second threshold, wherein the second threshold is less than the first threshold.

[0058] In other words, such as Figure 5 As shown, when the cooling load demand is less than the first threshold, in order to avoid the water temperature fluctuation at the secondary side outlet 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 run at the lowest speed, and maintains the water temperature at the secondary side outlet of the heat exchanger by controlling the fan speed of the condenser.

[0059] When the cooling load demand is less than the second threshold, the control device shuts down the liquid cooling system.

[0060] In one implementation, before determining the cooling load requirement based on the preset water temperature and the actual water temperature output from the secondary side outlet of the heat exchanger to the third pipeline, the method may further include: acquiring 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 refrigerant output by the condensing device reaches the target condensing pressure.

[0061] In this application, the control device can adjust the fan speed of the condenser unit using a PID algorithm based on the outdoor temperature of the liquid cooling system, so that the refrigerant output by the condenser unit reaches the target condensing pressure. The condensing temperature corresponding to the target condensing pressure can be 35°C. Then, based on the preset water temperature T1 and the actual water temperature T2 output from the secondary side of the heat exchanger to the third pipeline, the control device determines the cooling load demand. Then, it uses the PID algorithm to adjust the speed of the refrigerant pump to regulate the refrigerant flow rate, so that the actual water temperature output from the secondary side 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, when the cooling load demand decreases, the refrigerant pump maintains a minimum cooling output until the cooling load demand reaches -150%, after which the refrigerant pump gradually stops. However, the fan of the condenser unit can be delayed for a preset time (e.g., 3 minutes) to shut down, so as to quickly respond to the demand.

[0062] The control method for a liquid cooling system provided in this application can be executed by a control device for the liquid cooling system. This application uses the example of a control device for the liquid cooling system executing the control method to illustrate the control device for the liquid cooling system provided in this application.

[0063] Figure 6This is a schematic diagram of the structure of a control device for a liquid cooling system disclosed in an embodiment of this application. Figure 6 As shown, the control device 600 of the liquid cooling system includes a determination module 610 and a control module 620.

[0064] In this application, the determination module 610 is used to determine the cooling load demand 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; the control module 620 is used to control the fan speed of the condenser, the speed of the refrigerant pump, and the opening degree of the flow control device based on the cooling load demand.

[0065] In one implementation, the control module 620 is further configured to, before determining the cooling load demand based on the actual water temperature output to the third pipeline from the secondary side output port of the heat exchange device based on the preset water temperature, control the condenser fan to operate at a first preset speed, the refrigerant pump at a second preset speed, and the flow control device at a preset opening for a preset duration when the liquid cooling system is turned on and there is a cooling load demand.

[0066] In one implementation, the control module 620 controls the fan speed of the condenser, the speed of the refrigerant pump, and the opening degree of the flow control device based on the cooling load demand, including: controlling the refrigerant pump to operate at the lowest speed when the cooling load demand is less than a first threshold; and controlling the liquid cooling system to shut down when the cooling load demand is less than a second threshold, wherein the second threshold is less than the first threshold.

[0067] In one implementation, the control device further includes: an acquisition module, used to acquire the outdoor temperature of the liquid cooling system before determining the cooling load demand based on the actual water temperature output to the third pipeline from the secondary side output port of the heat exchanger based on the preset water temperature; the control module 620 is also used to control the fan speed of the condensing device based on the outdoor temperature, so that the refrigerant output by the condensing device reaches the target condensing pressure.

[0068] The control device for the liquid cooling system provided in this application embodiment can realize the various processes implemented in the control method embodiment of the liquid cooling system. To avoid repetition, it will not be described again here.

[0069] Optionally, such as Figure 7 As shown, this application embodiment also provides an electronic device 700, including a processor 701 and a memory 702. The memory 702 stores a program or instructions that can run on the processor 701. When the program or instructions are executed by the processor 701, they implement the various steps of the control method embodiment of the liquid cooling system described above and can achieve the same technical effect. To avoid repetition, they will not be described again here.

[0070] It should be noted that the electronic devices in the embodiments of this application include mobile electronic devices and non-mobile electronic devices.

[0071] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the control method embodiment of the liquid cooling system described above and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0072] The processor is the processor in the electronic device described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0073] This application also provides a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium. The computer program includes program instructions that, when executed by a computer, cause the computer to perform the steps of the control method for the liquid cooling system described above.

[0074] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0075] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A liquid cooling system, characterized in that, include: The system comprises a condenser, a heat exchanger, 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. The first pipeline and the second pipeline are used for the flow of 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 installed on the first pipeline. The control device is electrically connected to the refrigerant pump and 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 disposed on the first pipeline and located between the inlet 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 disposed 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 degree 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, which are disposed 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. The control device is also used to control the speed of the refrigerant pump or the opening degree 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, which are disposed on the second pipeline. The third pressure detection device is located near the inlet of the second pipeline, and the first temperature detection device is located between the inlet 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. The control device is also used to control the opening degree 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 installed on the second pipeline and located near the output port of the second pipeline. The fourth pressure detection device 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.

9. The liquid cooling system according to claim 1, characterized in that, It also includes a switching device, which is disposed on the second pipeline.

10. A data center, characterized in that, include: The computer room, the server, the third piping, and the liquid cooling system according to any one of claims 1 to 9, wherein: The server is located in the computer room. The inlet of the third pipe is connected to the secondary side outlet of the heat exchange device, and the outlet of the third pipe is connected to the secondary side inlet of the heat exchange device. The third pipe is used to circulate water to dissipate heat from the server.

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