Cooling liquid management device and liquid cooling system

Abstract

The utility model relates to a cooling liquid management device and a liquid cooling system. The cooling liquid management device comprises a liquid return pipeline, one end of the liquid return pipeline is used for being connected with a cooling source, and the other end of the liquid return pipeline is used for being connected with liquid cooling equipment; the cooling liquid supplementing unit is respectively connected with the liquid return pipeline and the controller; the pressure sensor is arranged in the liquid return pipeline, the pressure sensor is connected with the controller, and the pressure sensor is used for measuring pressure data of liquid in the liquid return pipeline; the controller is used for controlling the cooling liquid supplementing unit to input cooling liquid into the liquid return pipeline according to the pressure data. By adopting the device, liquid changing and liquid supplementing can be carried out on the liquid cooling system under the condition that the liquid cooling equipment normally runs.

Description

Technical Field

[0001] This application relates to the field of liquid cooling system replenishment and replacement technology, and in particular to a coolant management device and a liquid cooling system. Background Technology

[0002] With the rapid development of technologies such as big data, cloud computing, and artificial intelligence, the heat dissipation density of IT equipment has increased dramatically. Cold plate liquid cooling technology has seen rapid development due to its ability to address high heat flux density and its high energy efficiency. Before initial operation, liquid cooling systems using cold plate liquid cooling technology require filling the secondary piping with liquid. After the system is operational, losses of the secondary coolant occur due to IT equipment being moved or maintenance, affecting the stability of the entire system. Therefore, replenishment of the liquid cooling system is necessary. Furthermore, due to the long-term circulation of the secondary coolant, its water quality deteriorates, posing a risk of clogging or corroding the server cold plates, necessitating coolant replacement.

[0003] In traditional technology, after the liquid cooling system stops operating, the substandard liquid in the secondary side pipeline is drained and then qualified coolant is added to replace and replenish the coolant in the liquid cooling system.

[0004] However, traditional methods of changing and replenishing coolant can affect the operation of liquid cooling equipment. Utility Model Content

[0005] Therefore, it is necessary to provide a coolant management device and a liquid cooling system that can change and replenish the coolant in the liquid cooling system while the liquid cooling equipment is operating normally, in order to address the above-mentioned technical problems.

[0006] In a first aspect, this application provides a coolant management device. The coolant management device includes:

[0007] A return liquid pipeline, one end of which is used to connect to a cooler, and the other end of which is used to connect to a liquid cooling device;

[0008] A coolant replenishment unit and a controller, wherein the coolant replenishment unit is connected to the return line and the controller respectively;

[0009] A pressure sensor is installed in the return liquid line and connected to the controller. The pressure sensor is used to measure the pressure data of the liquid in the return liquid line, and the controller is used to control the coolant replenishment unit to input coolant into the return liquid line according to the pressure data.

[0010] In one embodiment, the coolant replenishment unit includes:

[0011] A replenishment pump, which is connected to the controller, is used to start under the control of the controller when the pressure data is the first pressure data.

[0012] A replenishment device, wherein the replenishment pump is connected between the replenishment device and the return line, and the replenishment device is used to input the coolant into the return line when the replenishment pump is turned on.

[0013] In one embodiment, the fluid replenishment device includes:

[0014] A replenishment container, which is connected to the replenishment pump, is used to input the coolant into the return line when the replenishment pump is turned on.

[0015] A liquid level sensor is disposed in the replenishment container and connected to the controller. The liquid level sensor is used to measure the liquid level data in the replenishment container.

[0016] A first solenoid valve is connected to the replenishment container and the controller respectively, and the first solenoid valve is also used to connect to a cooling source. The controller is used to control the first solenoid valve to open according to the liquid level data.

[0017] The replenishment container is also used to replenish coolant through the cooling source when the first solenoid valve is turned on.

[0018] In one embodiment, the coolant management device further includes:

[0019] A first check valve is connected between the return line and the replenishment pump. The first check valve is used to open during the process of the replenishment container inputting coolant into the return line.

[0020] In one embodiment, the coolant replenishment unit further includes:

[0021] The second solenoid valve is connected to the controller and the cooling source respectively. When the pressure data is the second pressure data, the second solenoid valve is used to be turned on under the control of the controller.

[0022] The return line is also used to replenish coolant through the cooling source when the second solenoid valve is turned on.

[0023] In one embodiment, the coolant management device further includes:

[0024] The second check valve is connected between the return line and the second solenoid valve. The second check valve is used to open during the process of replenishing coolant through the cooling source in the return line.

[0025] In one embodiment, the coolant management device further includes:

[0026] A liquid replacement solenoid valve is connected to the return liquid line and the controller respectively. When the liquid parameters of the liquid in the return liquid line meet the liquid replacement conditions, the liquid replacement solenoid valve is turned on under the control of the controller to discharge the liquid in the return liquid line.

[0027] In one embodiment, the fluid replacement conditions include water quality parameter thresholds, and the coolant management device further includes:

[0028] A water quality testing device is installed in the return liquid pipeline and connected to the controller. The water quality testing device is used to measure the water quality parameter values ​​of the liquid in the return liquid pipeline.

[0029] When the water quality parameter value is less than the water quality parameter threshold, the liquid exchange solenoid valve is activated under the control of the controller.

[0030] In one embodiment, the coolant management device further includes:

[0031] A filter, wherein a first end of the filter is connected to a cooling source, and a plurality of second ends of the filter are respectively connected to a first solenoid valve and a second solenoid valve; the filter is used to filter the coolant input from the cooling source to the first solenoid valve and the second solenoid valve.

[0032] Secondly, this application also provides a liquid cooling system. The liquid cooling system includes a liquid cooling device, a cooling source, and a coolant management device as described in any one of the first aspects above;

[0033] The coolant management device is connected between the liquid cooling equipment and the cooling source.

[0034] In the aforementioned coolant management device and liquid cooling system, the coolant management device includes a return pipe, a coolant replenishment unit, a controller, and a pressure sensor. One end of the return pipe is connected to the cooling source, and the other end is connected to the liquid cooling equipment. The coolant replenishment unit is connected to both the return pipe and the controller. The pressure sensor is installed in the return pipe and connected to the controller. By measuring the pressure data of the liquid in the return pipe, the pressure sensor can monitor the coolant in the return pipe in real time. This allows the controller to control the coolant replenishment unit to input coolant into the return pipe based on the pressure data. This ensures timely replenishment of coolant when the coolant in the return pipe is insufficient, preventing the cooling function from being affected by coolant shortage. This coolant management device can replenish coolant in a timely manner through real-time monitoring of the return pipe and dissipate heat from the liquid cooling equipment through the return pipe. Thus, it can manage the coolant in the return pipe while the liquid cooling equipment is operating normally, thereby preventing any impact on the operation of the liquid cooling equipment. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of a coolant management device in one embodiment;

[0036] Figure 2 This is a schematic diagram of the coolant management device in another embodiment;

[0037] Figure 3 This is a schematic diagram of the coolant management device in another embodiment;

[0038] Figure 4 This is a schematic diagram of the coolant management device in another embodiment;

[0039] Figure 5 This is a schematic diagram of a coolant management device according to another embodiment;

[0040] Figure 6 This is a schematic diagram of the coolant management device in another embodiment;

[0041] Figure 7 This is a schematic diagram of a liquid cooling system in one embodiment;

[0042] Explanation of reference numerals in the attached figures:

[0043] Return line: 10; Coolant replenishment unit: 20; Controller: 30;

[0044] Pressure sensor: 40; First check valve: 50; Second check valve: 60;

[0045] Fluid replacement solenoid valve: 70; Water quality testing equipment: 80; Filter: 90;

[0046] Liquid replenishment pump: 201; Liquid replenishment equipment: 202; Second solenoid valve: 203;

[0047] Liquid replenishment container: 2021; Liquid level sensor: 2022; First solenoid valve: 2023. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0049] In one embodiment, such as Figure 1 As shown, a coolant management device is provided, comprising: a return line 10, one end of which is connected to a cooler, and the other end of which is connected to a liquid cooling device; a coolant replenishment unit 20 and a controller 30, the coolant replenishment unit 20 being connected to the return line 10 and the controller 30 respectively; a pressure sensor 40 being disposed in the return line 10 and connected to the controller 30, the pressure sensor 40 being used to measure the pressure data of the liquid in the return line 10, and the controller 30 being used to control the coolant replenishment unit 20 to input coolant into the return line 10 based on the pressure data.

[0050] It should be noted that liquid cooling systems are a heat dissipation technology that utilizes liquid to remove heat from heat-generating devices, primarily used in energy storage systems and data centers. Liquid cooling systems work by delivering coolant to heat-generating devices, transferring heat from the devices to the coolant through heat conduction, and then carrying the heat away through circulation. When the coolant temperature rises, a coolant heat exchanger can be used to further reduce the temperature, ensuring the equipment operates within a suitable temperature range. Liquid cooling systems can be divided into two types: contact liquid cooling and non-contact liquid cooling. Contact liquid cooling involves direct contact between the coolant and the heat-generating device, such as immersion liquid cooling and spray liquid cooling; non-contact liquid cooling involves no direct contact between the coolant and the heat-generating device, such as cold plate liquid cooling. In the embodiments of this application, a cold plate liquid cooling system is provided as an example to achieve liquid replenishment and replacement in the liquid cooling system.

[0051] The return liquid line 10 is used in the liquid cooling system to balance the refrigeration cycle and prevent abnormal system failures. By returning the refrigerant condensed into liquid in the condenser to the evaporator for reuse, the return liquid line 10 ensures the circulation of refrigerant within the system, thereby maintaining the normal operation of the refrigeration system. Figure 1As shown, one end of the return line 10 can be connected to a cooling source other than the coolant management device to obtain coolant, and the other end of the return line 10 can be connected to the liquid cooling equipment of the coolant management device to use the coolant in the return line to dissipate heat from the cooling equipment. The cooling source can be a water source providing cold water, and the liquid cooling equipment can be a server requiring heat dissipation.

[0052] The coolant replenishment unit 20 can replenish coolant to the return line 10 when the coolant level in the return line is low. It is understood that the coolant level in the return line 10 may decrease due to heat dissipation, leakage due to cracks, or deterioration of water quality due to prolonged use, causing the coolant to be drained from the return line 10. Therefore, it is necessary to replenish coolant to the return line.

[0053] To ensure uninterrupted operation of the liquid cooling system during coolant replenishment, this embodiment also includes a controller 30 and a pressure sensor 40 in the coolant management device. The controller 30 is connected to the pressure sensor 40, which is positioned in the return line to measure the pressure data of the liquid in the return line 10 in real time. This pressure data is then sent to the controller 30, which determines whether coolant needs to be replenished in the return line based on the received pressure data. Optionally, if the pressure data is below a pressure threshold, it can be determined that coolant needs to be replenished in the return line 10, and the controller 30 can control the coolant replenishment unit 20 to input coolant into the return line 10. If the pressure data is equal to or higher than the pressure threshold, it can be determined that coolant does not need to be replenished in the return line 10.

[0054] As one possible implementation, during the process of the controller 30 controlling the coolant replenishment unit 20 to input coolant into the return pipe 10 according to the pressure data, the controller 30 can also receive real-time pressure data sent by the pressure sensor 40, and when the real-time pressure data is equal to or higher than the pressure threshold, control the coolant replenishment unit 20 to stop inputting coolant into the return pipe 10, so as to avoid problems such as explosion of the return pipe 10 due to excessive coolant.

[0055] The aforementioned coolant management device includes a return line, a coolant replenishment unit, a controller, and a pressure sensor. One end of the return line is connected to the cooler, and the other end is connected to the liquid cooling equipment. The coolant replenishment unit is connected to both the return line and the controller. The pressure sensor is installed in the return line and connected to the controller. By measuring the pressure data of the liquid in the return line, the pressure sensor can monitor the coolant in the return line in real time. This allows the controller to control the coolant replenishment unit to input coolant into the return line based on the pressure data. This ensures timely replenishment of coolant when the coolant in the return line is low, preventing the cooling function from being affected by insufficient coolant. This coolant management device can replenish coolant in a timely manner by monitoring the return line in real time and dissipate heat from the liquid cooling equipment through the return line. Thus, it can manage the coolant in the return line while the liquid cooling equipment is operating normally, thereby preventing any impact on the operation of the liquid cooling equipment.

[0056] In the above Figure 1 On the basis of, such as Figure 2 As shown, the coolant replenishment unit includes: a replenishment pump 201, which is connected to the controller 30. When the pressure data is the first pressure data, the replenishment pump 201 is turned on under the control of the controller 30. A replenishment device 202 is connected between the replenishment device 202 and the return line 10. The replenishment device 202 is used to input coolant into the return line 10 when the replenishment pump 201 is turned on.

[0057] The replenishment pump 201 is connected between the replenishment device 202 and the return line 10. When the replenishment pump 201 is turned on, the coolant in the replenishment device 202 can be input into the return line 10. When the replenishment pump 201 is turned off, the coolant input in the replenishment device 202 stops. Therefore, the flow of coolant in the replenishment device 202 can be controlled by the replenishment pump 201.

[0058] It is understandable that when the coolant in the return line 10 is consumed less due to heat dissipation, the pressure data measured by the pressure sensor 40 will gradually decrease. In this embodiment, the gradually decreasing pressure data is taken as the first pressure data. When the first pressure data is lower than the pressure threshold, it can be determined that coolant needs to be added to the return line.

[0059] In this embodiment, the replenishment pump 201 can be connected to the controller 30. When the controller 30 determines that the pressure data is the first pressure data, it can control the replenishment pump 201 to start, so that the coolant in the replenishment device 202 can be input into the return pipeline 10.

[0060] As one possible implementation, during the process of controlling the replenishment pump 201 to turn on and input the coolant from the replenishment device 202 into the return line 10, if the first pressure data received by the controller 30 is greater than the pressure threshold, the controller 30 can also control the replenishment pump 201 to turn off, so as to stop inputting the coolant from the replenishment device 202 into the return line 10.

[0061] In this embodiment, the coolant replenishment unit includes a replenishment pump and a replenishment device. The replenishment pump is connected to the controller and is connected between the replenishment device and the return pipeline. When the pressure data is the first pressure data, the replenishment pump can be turned on under the control of the controller. When the replenishment pump is turned on, the replenishment device can input coolant into the return pipeline, thereby achieving timely replenishment of the return pipeline when the pressure data is lower than the pressure threshold and the pressure data is the first pressure data that is gradually decreasing.

[0062] In the above Figure 2 On the basis of, such as Figure 3 As shown, the liquid replenishment device 202 includes: a liquid replenishment container 2021, which is connected to a liquid replenishment pump 201 and is used to input coolant into the return line 10 when the liquid replenishment pump 201 is turned on; a liquid level sensor 2022, which is disposed in the liquid replenishment container 2021 and connected to a controller 30, and is used to measure the liquid level data in the liquid replenishment container 2021; a first solenoid valve 2023, which is connected to the liquid replenishment container 2021 and the controller 30 respectively, and is also used to connect to a cooling source. The controller 30 is used to control the first solenoid valve 2023 to open according to the liquid level data; the liquid replenishment container 2021 is also used to replenish coolant through the cooling source when the first solenoid valve 2023 is open.

[0063] The coolant replenishment container 2021 is a device for storing coolant. The coolant replenishment container 2021 can be a coolant tank, and the shape of the coolant replenishment container 2021 is not limited in this embodiment. It is understood that coolant can be replenished to the return line 10 from the coolant replenishment container 2021, and coolant can also be replenished to the coolant replenishment container 2021 when it is low.

[0064] In order to monitor the coolant in the replenishment container 2021 in real time, a liquid level sensor 2022 can be installed in the replenishment container 2021 and connected to the controller 30 so that the controller 30 can obtain the liquid level data of the liquid in the replenishment container 2021 measured by the liquid level sensor 2022.

[0065] In this embodiment, a first solenoid valve 2023 can also be provided, positioned between the replenishment container 2021 and the cooling source to transfer coolant from the cooling source to the replenishment container 2021. To automate the transfer of coolant from the cooling source to the replenishment container 2021, the first solenoid valve 2023 can be connected to a controller 30, allowing the controller 30 to control the opening and closing of the first solenoid valve 2023. Thus, when the controller 30 controls the first solenoid valve 2023 to open, coolant from the cooling source is transferred to the replenishment container 2021.

[0066] In one possible implementation, during the process of transferring coolant from the cooling source to the replenishment container 2021 by turning on the first solenoid valve 2023, the controller 30 can acquire the liquid level data measured by the liquid level sensor 2022 in real time, and control the first solenoid valve 2023 to close when the liquid level data reaches the set liquid level data, thereby stopping the transfer of coolant from the cooling source to the replenishment container 2021.

[0067] As an alternative implementation method, please continue to refer to Figure 3 The coolant management device may further include: a first check valve 50, which is connected between the return line 10 and the replenishment pump 201. The first check valve 50 is used to open during the process of the replenishment container 2021 inputting coolant into the return line 10.

[0068] It is understandable that during the process of supplying coolant from the replenishment container 2021 to the return line 10, the first check valve 50 is activated to prevent coolant in the return line 10 from flowing back into the replenishment container 2021.

[0069] In this embodiment, the liquid replenishment device includes a liquid replenishment container, a liquid level sensor, and a first solenoid valve. The liquid replenishment container is connected to a liquid replenishment pump. The liquid level sensor is installed in the liquid replenishment container and connected to a controller. The first solenoid valve is connected to both the liquid replenishment container and the controller. The first solenoid valve is also used to connect to a cooling source. When the liquid replenishment pump is turned on, the liquid replenishment container can be used to input coolant into the return liquid line. During the process of inputting coolant into the return liquid line from the liquid replenishment container, the liquid level sensor in the liquid replenishment container can measure the liquid level data in the liquid replenishment container and transmit the liquid level data to the controller. This allows the controller to control the first solenoid valve to open when the liquid level data is lower than the preset liquid level data, thereby transferring the coolant from the cooling source to the liquid replenishment container to replenish the coolant. This avoids the problem of insufficient coolant in the liquid replenishment container preventing the replenishment of coolant into the return liquid line, improves the reliability of replenishing coolant into the return liquid line, and achieves the completeness of the liquid replenishment process.

[0070] In the above Figure 1 On the basis of, such as Figure 4 As shown, the coolant replenishment unit 20 also includes a second solenoid valve 203, which is connected to the controller 30 and the cooling source respectively. When the pressure data is the second pressure data, the second solenoid valve 203 is used to open under the control of the controller 30. The return line 10 is also used to replenish coolant through the cooling source when the second solenoid valve 203 is open.

[0071] The second solenoid valve 203 is used to connect the cooling source and the return line 10 via a transmission channel. It is understood that in the event of a leak in the return line 10, the transmission channel between the cooling source and the return line 10 can be used to quickly replenish the return line 10.

[0072] To monitor for leaks in the return line 10 in a timely manner, the controller 30 can determine whether a leak has occurred based on pressure data. In this embodiment, a rapid decrease in pressure data within a short period can be used as the second pressure data. When the controller 30 receives the second pressure data, it can control the second solenoid valve 203 to open, thereby rapidly replenishing coolant from the cooling source into the return line 10 through the second solenoid valve 203.

[0073] As one possible implementation, when the second solenoid valve 203 is turned on, during the process of replenishing coolant to the return line 10 through the cooling source, if the pressure data measured by the pressure sensor 40 reaches the pressure threshold, the controller 30 can control the second solenoid valve 203 to close, thereby stopping the replenishment of coolant to the return line 10 through the cooling source.

[0074] Understandably, before the liquid cooling system is first put into operation, the coolant in the cooling source can be fed into the return line 10 through the second solenoid valve 203 to achieve rapid replenishment.

[0075] As an alternative implementation method, please continue to refer to Figure 4 The coolant management device also includes:

[0076] The second check valve 60 is connected between the return line 10 and the second solenoid valve 203. The second check valve 60 is used to open during the process of replenishing coolant through the cooling source in the return line management.

[0077] Understandably, during the process of replenishing coolant from the cooling source to the return line 10, the second check valve 60 is activated to prevent coolant in the return line 10 from flowing back into the cooling source.

[0078] In this embodiment, the coolant replenishment unit also includes a second solenoid valve, which is connected to the controller and the cooling source respectively. When the pressure data is the second pressure data, the second solenoid valve can be turned on under the control of the controller to replenish coolant to the return pipe through the cooling source, thereby achieving rapid replenishment and improving replenishment efficiency. In addition, in the event of leakage in the return pipe, replenishing coolant to the return pipe through the cooling source can maintain the pressure of the coolant in the return pipe, reduce maintenance waiting time, and thus reduce the impact on the liquid cooling equipment.

[0079] In the above Figure 1 On the basis of, such as Figure 5 As shown, the coolant management device also includes a coolant exchange solenoid valve 70, which is connected to the return line 10 and the controller 30 respectively. When the liquid parameters of the liquid in the return line 10 meet the coolant exchange conditions, the coolant exchange solenoid valve 70 is opened under the control of the controller 30 to discharge the liquid in the return line 10.

[0080] The fluid exchange solenoid valve 70 can be connected to the fluid exchange port provided on the return fluid line 10, and is used to discharge the liquid in the return fluid line 10 through the fluid exchange port when the circuit is open.

[0081] It should be noted that if the liquid in the return line 10 needs to be replaced, the liquid in the return line 10 can be drained and new liquid can be introduced into the return line 10. The replacement conditions refer to the conditions that must be met for coolant replacement.

[0082] In this embodiment, a liquid replacement solenoid valve 70 can be provided, which is connected to the return liquid line 10 and the controller 30 respectively. When the liquid parameters of the liquid in the return liquid line 10 meet the liquid replacement conditions, the controller 30 can control the liquid replacement solenoid valve 70 to open, so as to discharge the liquid from the liquid replacement port of the return liquid line 10.

[0083] As one possible implementation method, the fluid replacement conditions include water quality parameter thresholds; please refer to [link / reference needed]. Figure 5 The coolant management device also includes a water quality testing device 80, which is installed in the return line 10 and connected to the controller 30. The water quality testing device 80 is used to measure the water quality parameter value of the liquid in the return line 10. When the water quality parameter value is less than the water quality parameter threshold, the fluid replacement solenoid valve 70 is used to be turned on under the control of the controller 30.

[0084] It should be noted that the coolant in the return line 10 may deteriorate in quality due to long-term circulation, thus affecting the heat dissipation effect. Therefore, a water quality detection device 80 can be installed in the return line 10 to measure the water quality parameters of the liquid in the return line 10 and send the water quality parameters to the controller 30 so that the controller 30 can control the opening and closing of the fluid exchange solenoid valve 70 according to the water quality parameters.

[0085] The water quality parameter threshold refers to the minimum parameter value required for the water quality to meet the heat dissipation requirements. In this embodiment, the controller 30 can receive the water quality parameter values ​​measured by the water quality detection device 80 in real time, compare the water quality parameter values ​​with the water quality parameter threshold, and then, if the comparison result indicates that the water quality parameter value is lower than the water quality parameter threshold, control the liquid exchange solenoid valve 70 to open, and then discharge the liquid in the return liquid pipeline 10 through the liquid exchange port on the return liquid pipeline 10.

[0086] As one possible implementation, during the process of discharging the liquid in the return liquid line 10 through the liquid exchange port on the return liquid line 10, if the liquid replenished in the return liquid line 10 meets the requirements, the controller 30 can control the liquid exchange solenoid valve 70 to close, stopping the supply of different liquids to the return liquid line 10.

[0087] Understandably, during the process of draining the liquid from the return line 10 through the liquid exchange port on the return line 10, the controller 30 can acquire the pressure data measured by the pressure sensor 40, and when the pressure data is lower than the pressure threshold, control the replenishment pump 201 to open so as to input the coolant in the replenishment container 2021 into the return line 10. During the process of inputting the coolant in the replenishment container 2021 into the return line 10, the controller 30 can also acquire the liquid level measured by the level sensor 2022, and when the liquid level is lower than the liquid level threshold, control the first solenoid valve 2023 to open so as to replenish the coolant from the cooling source into the replenishment container 2021, thereby ensuring that the return line 10 is replenished with sufficient liquid.

[0088] Optionally, in this embodiment, the fluid exchange port connected to the fluid exchange solenoid valve 70 can be set on the side of the return pipe 10 closer to the liquid cooling equipment, and the coolant replenishment unit 20 can be set on the side of the return pipe 10 closer to the cooling source. In this way, the fluid exchange port can be set in front and the replenishment port can be set in the back according to the fluid direction, so that while the return pipe 10 is being discharged, the coolant replenishment unit 20 can replenish the return pipe 10, thereby reducing the impact of the fluid exchange process on the heat dissipation effect.

[0089] In this embodiment, the coolant management device also includes a fluid exchange solenoid valve and a water quality testing device. The fluid exchange solenoid valve is connected to the return pipe and the controller, respectively. The water quality testing device is installed in the return pipe and connected to the controller. The water quality testing device can measure the water quality parameter value of the liquid in the return pipe. When the water quality parameter value is less than the water quality parameter threshold, the fluid exchange solenoid valve can be opened under the control of the controller to discharge the liquid in the return pipe. Thus, the device can discharge the liquid in the return pipe that is less than the water quality parameter threshold in a timely manner according to the water quality parameter value measured by the water quality testing device, thereby reducing the impact of coolant water quality deterioration on heat dissipation effect and avoiding the impact on the normal operation of the liquid cooling equipment.

[0090] In the above Figure 1 On the basis of, such as Figure 6 As shown, the coolant management device also includes a filter 90. The first end of the filter 90 is connected to the cooling source, and the multiple second ends of the filter 90 are respectively connected to the first solenoid valve 2023 and the second solenoid valve 203. The filter 90 is used to filter the coolant input from the cooling source to the first solenoid valve 2023 and the second solenoid valve 203.

[0091] In this embodiment, by using a coolant management device filter 90 and placing the filter 90 before the first solenoid valve 2023 and the second solenoid valve 203, impurities in the coolant from the cooling source can be filtered out, thereby improving the water quality of the coolant entering the replenishment container 2021 and the return pipe 10, and improving the heat dissipation effect.

[0092] In this embodiment, the coolant management device further includes a filter. The first end of the filter is connected to the cooling source, and the multiple second ends of the filter are respectively connected to the first solenoid valve and the second solenoid valve. The filter can filter the coolant input from the cooling source to the first solenoid valve and the second solenoid valve, thereby improving the water quality of the coolant in the input replenishment container and the return pipeline.

[0093] Based on the above embodiments, such as Figure 7 As shown, this application also provides a liquid cooling system, which includes a liquid cooling device, a cooling source, and a coolant management device connected between the liquid cooling device and the cooling source.

[0094] In this embodiment, the coolant management device can be placed between the liquid cooling equipment and the cooling source to enable the coolant management device to obtain coolant from the cooling source and to dissipate heat from the liquid cooling equipment when the liquid cooling equipment is operating normally.

[0095] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0096] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A coolant management device characterized by comprising: The cooling liquid management device comprises: a return liquid pipeline, one end of the return liquid pipeline being used for connecting with the cooler, the other end of the return liquid pipeline being used for connecting with the liquid cooling device; a cooling liquid supplement unit and a controller, the cooling liquid supplement unit being connected with the return liquid pipeline and the controller respectively; a pressure sensor, the pressure sensor being arranged in the return liquid pipeline and being connected with the controller, the pressure sensor being used for measuring pressure data of liquid in the return liquid pipeline, and the controller being used for controlling the cooling liquid supplement unit to input cooling liquid into the return liquid pipeline according to the pressure data.

2. The coolant management device of claim 1, wherein The cooling liquid supplement unit comprises: a liquid supplement pump, the liquid supplement pump being connected with the controller, and the liquid supplement pump being used for being turned on under the control of the controller in the case that the pressure data is first pressure data; a liquid supplement device, the liquid supplement pump being connected between the liquid supplement device and the return liquid pipeline, and the liquid supplement device being used for inputting the cooling liquid into the return liquid pipeline under the condition that the liquid supplement pump is turned on.

3. The coolant management device of claim 2, wherein The liquid supplement device comprises: a liquid supplement container, the liquid supplement container being connected with the liquid supplement pump, and the liquid supplement container being used for inputting the cooling liquid into the return liquid pipeline under the condition that the liquid supplement pump is turned on; a liquid level sensor, the liquid level sensor being arranged in the liquid supplement container and being connected with the controller, the liquid level sensor being used for measuring liquid level data of liquid in the liquid supplement container; a first electromagnetic valve, the first electromagnetic valve being connected with the liquid supplement container and the controller respectively, and the first electromagnetic valve being further used for being connected with a cooling source, and the controller being used for controlling the first electromagnetic valve to be turned on according to the liquid level data; the liquid supplement container being further used for supplementing cooling liquid through the cooling source under the condition that the first electromagnetic valve is turned on.

4. The coolant management device of claim 3, wherein The cooling liquid management device further comprises: a first one-way valve, the first one-way valve being connected between the return liquid pipeline and the liquid supplement pump, and the first one-way valve being used for being turned on in the process that the liquid supplement container inputs the cooling liquid into the return liquid pipeline.

5. The coolant management device of claim 2, wherein The cooling liquid supplement unit further comprises: a second electromagnetic valve, the second electromagnetic valve being connected with the controller and the cooling source respectively, and the second electromagnetic valve being used for being turned on under the control of the controller in the case that the pressure data is second pressure data; the return liquid pipeline being further used for supplementing cooling liquid through the cooling source under the condition that the second electromagnetic valve is turned on.

6. The coolant management device of claim 5, wherein The cooling liquid management device further comprises: a second one-way valve, the second one-way valve being connected between the return liquid pipeline and the second electromagnetic valve, and the second one-way valve being used for being turned on in the process that the return liquid pipeline supplements the cooling liquid through the cooling source.

7. The coolant management device of claim 1, wherein The cooling liquid management device further comprises: a liquid replacement electromagnetic valve, the liquid replacement electromagnetic valve being connected with the return liquid pipeline and the controller respectively, and the liquid replacement electromagnetic valve being used for being turned on under the control of the controller to discharge liquid in the return liquid pipeline in the case that liquid parameters of liquid in the return liquid pipeline meet liquid replacement conditions.

8. The coolant management device of claim 7, wherein, The liquid replacement conditions comprise a water quality parameter threshold value, and the cooling liquid management device further comprises: A water quality detection device is arranged in the liquid return pipeline and connected with the controller, and is used to measure a water quality parameter value of the liquid in the liquid return pipeline. When the water quality parameter value is less than the water quality parameter threshold value, the liquid replacement electromagnetic valve is controlled to be turned on by the controller.

9. The coolant management device of claim 1, wherein, The cooling liquid management device further comprises: A filter, a first end of which is connected with the cooling source, and a plurality of second ends of which are respectively connected with the first electromagnetic valve and the second electromagnetic valve; the filter is used to filter the cooling liquid input from the cooling source to the first electromagnetic valve and the second electromagnetic valve.

10. A liquid cooling system, characterized by, The liquid cooling system comprises a liquid cooling device, a cooling source and the cooling liquid management device according to any one of claims 1-9. The cooling liquid management device is connected between the liquid cooling device and the cooling source.

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