Immersion liquid cooling system, control method, and control apparatus

Abstract

Embodiments of the present application relate to the technical field of liquid cooling heat dissipation, and provide an immersion liquid cooling system, a control method, and a control apparatus. The system comprises: a liquid cooling device, a first pump, a first condenser, a first solenoid valve, a second pump, a liquid storage apparatus, and a third solenoid valve. A gas area outlet of the liquid cooling device is connected to one end of the first pump, the other end of the first pump is connected to an inlet of the first condenser, and an outlet of the first condenser is connected to the first solenoid valve. The first solenoid valve is connected to an exhaust port. A liquid area inlet of the liquid cooling device is connected to one end of the second pump, and the other end of the second pump is connected to the liquid storage apparatus. One end of the third solenoid valve is connected to the outlet of the first condenser, and the other end of the third solenoid valve is connected to a second inlet of the liquid storage apparatus. The third solenoid valve is used to control the opening and closing of a pipeline between the first condenser and the second inlet of the liquid storage apparatus. The present application can reduce the waste of immersion liquid.

Description

Immersion liquid cooling system, control method and control device Technical Field

[0001] The present application relates to the field of liquid cooling technology, and in particular to an immersion liquid cooling system, a control method, and a control device. Background Art

[0002] As chip power consumption increases, the chip's heat flux density also increases, making heat dissipation in the electronic devices where the chips reside increasingly difficult. Air cooling is no longer sufficient for these devices, leading to the emergence of a new cooling technology: dual-phase immersion cooling. This technology not only dissipates heat for the electronic devices where high-power chips reside, but also reduces energy consumption in the data centers where these devices reside, achieving energy conservation and emission reductions, enabling data centers to meet Power Usage Effectiveness (PUE) requirements.

[0003] Two-phase immersion cooling involves immersing electronic equipment in the liquid zone of a liquid cooling device (TANK). The heat generated by the electronics vaporizes the immersion liquid. This process absorbs a significant amount of heat, known as latent heat of vaporization, thereby cooling the electronics. The liquid cooling device also contains a gas zone, which houses a condenser. The vapor generated by the liquid vaporization reaches the condenser, where it is cooled to a liquid state and then returns to the liquid zone.

[0004] However, currently, the cover needs to be opened during the exhaust process of the liquid cooling equipment, which will cause a large amount of steam generated by the vaporization of the immersion liquid to evaporate, resulting in waste of the immersion liquid.

[0005] Summary of the Invention

[0006] The purpose of the embodiments of the present application is to provide an immersion liquid cooling system, control method, and control device for reducing waste of immersion liquid. The specific technical solution is as follows:

[0007] In a first aspect, an embodiment of the present application provides an immersion liquid cooling system, comprising: a liquid cooling device, a first pump, a first condenser, a first solenoid valve, a second pump, a liquid storage device, and a third solenoid valve;

[0008] The gas zone outlet of the liquid cooling device is connected to one end of the first pump, the other end of the first pump is connected to the inlet of the first condenser, and the outlet of the first condenser is connected to the first solenoid valve; the first solenoid valve is connected to the exhaust port, and is used to control the on / off state of the exhaust port;

[0009] The liquid area inlet of the liquid cooling device is connected to one end of the second pump, and the other end of the second pump is connected to the liquid storage device;

[0010] One end of the third solenoid valve is connected to the outlet of the first condenser, and the other end is connected to the second inlet of the liquid storage device. The third solenoid valve is used to control the on-off of the pipeline between the first condenser and the second inlet of the liquid storage device.

[0011] In one possible implementation, the system further includes a second solenoid valve;

[0012] The first inlet of the liquid storage device is connected to the second solenoid valve, and the second solenoid valve is connected to the liquid infusion port, and is used to control the on / off state of the liquid infusion port.

[0013] In a possible implementation, a second condenser is provided in the gas area of ​​the liquid cooling device, and the first condenser and the second condenser share a cooling liquid outlet and a cooling liquid inlet;

[0014] An opening valve is provided at the coolant inlet, and a fourth solenoid valve is provided between the opening valve and the first condenser, and the fourth solenoid valve is used to control the on-off of the pipeline between the opening valve and the condensation pipe inlet of the first condenser;

[0015] The opening valve is also connected to the condensation pipe inlet of the second condenser.

[0016] In a possible implementation, the system further includes a first liquid discharge pipeline, a second liquid discharge pipeline, a first three-way valve, and a second three-way valve;

[0017] The first three-way valve is located between the second pump and the liquid storage device, and the first three-way valve is connected to the first liquid discharge pipeline;

[0018] The second three-way valve is located between the liquid area inlet of the liquid cooling device and the second pump, and the second three-way valve is connected to the second liquid discharge pipeline.

[0019] In a possible implementation, the system further includes a third liquid discharge pipeline, a fourth liquid discharge pipeline, a first three-way valve, a second three-way valve, and a fifth solenoid valve;

[0020] The first three-way valve is located between the second pump and the liquid storage device, and the second three-way valve is located between the liquid area inlet of the liquid cooling device and the second pump;

[0021] One end of the third liquid discharge pipeline is connected to the outlet of the second pump, and the other end is connected to the liquid discharge port, and the fifth solenoid valve is provided between the third liquid discharge pipeline and the second pump;

[0022] One end of the fourth liquid discharge pipeline is connected to the first three-way valve, and the other end is connected to the second three-way valve;

[0023] In a possible implementation, a pressure gauge is provided between the gas zone outlet of the liquid cooling device and the first pump.

[0024] In a possible implementation, a liquid level sensor is provided in the liquid cooling device.

[0025] In a possible implementation, a liquid level sensor is provided in the liquid storage tank.

[0026] In one possible implementation, a control device is provided in the liquid cooling equipment, and the control device is used to control the opening valve, the first solenoid valve, the second solenoid valve, the third solenoid valve, the fourth solenoid valve, the first pump, the second pump, the first three-way valve and the second three-way valve.

[0027] In a second aspect, an embodiment of the present application provides a control method for an immersion liquid cooling system, wherein the immersion liquid cooling system is the system described in the first aspect above, and the method is applied to a control device of a liquid cooling device, and the method includes:

[0028] When the device to be cooled in the liquid cooling device is started, the first pump, the first solenoid valve, the third solenoid valve, and the fourth solenoid valve are opened, and the second solenoid valve is closed, so that the first pump draws out the air and immersion liquid vapor in the liquid cooling device and allows the air and immersion liquid vapor to enter the first condenser. The immersion liquid condensed by the first condenser flows into the liquid storage device through the third solenoid valve, and the air is discharged through the first solenoid valve and the exhaust port.

[0029] Adjusting the first three-way valve to allow communication between the second pump and the liquid storage device;

[0030] adjusting the second three-way valve to allow communication between the liquid zone inlet of the liquid cooling device and the second pump;

[0031] The opening of the opening valve is adjusted to adjust the pressure inside the liquid cooling device until the exhaust is completed.

[0032] In one possible implementation, adjusting the opening of the opening valve to adjust the pressure inside the liquid cooling device until exhaust is completed includes:

[0033] Obtaining a pressure value collected by the pressure gauge once every first preset time period;

[0034] If the pressure values ​​collected within a preset number of consecutive times show an upward trend, the opening of the opening valve is reduced by a preset opening value;

[0035] After a second preset time, closing the first pump, the first solenoid valve, the third solenoid valve, and the fourth solenoid valve, and reopening the first pump, the first solenoid valve, the third solenoid valve, and the fourth solenoid valve;

[0036] Return to the step of obtaining the pressure value collected by the pressure gauge every first preset time period until the pressure value collected within the preset number of consecutive times shows a downward trend, then determine that the exhaust is completed.

[0037] In a possible implementation, after determining that the exhaust is completed, the method further includes:

[0038] closing the first pump, the first solenoid valve, the third solenoid valve, and the fourth solenoid valve;

[0039] Obtaining the pressure value collected by the pressure gauge once every first preset time period;

[0040] If the pressure value is greater than a first pressure threshold, increasing the opening of the opening valve by a preset opening value;

[0041] If the pressure value is less than the second pressure threshold, the opening of the opening valve is reduced by a preset opening value.

[0042] In a possible implementation, the method further includes:

[0043] If the opening of the opening valve is at the maximum opening value and the pressure values ​​collected within a preset number of consecutive times show an upward trend, the third solenoid valve, the fourth solenoid valve and the first pump are opened;

[0044] If it is determined that the liquid level value identified by the liquid level sensor in the liquid storage device is greater than or equal to a first preset height, the second pump is turned on, and the immersion liquid in the liquid storage device is pumped out by the second pump, so that the immersion liquid enters the liquid cooling device along the pipeline through the liquid area inlet of the liquid cooling device.

[0045] In a possible implementation, the method further includes:

[0046] If the pressure values ​​collected within a preset number of consecutive times show an upward trend, the power of the first pump is increased by a preset power value.

[0047] In a possible implementation, the method further includes:

[0048] If it is determined that the liquid level value identified by the liquid level sensor of the liquid cooling device is less than a second preset height, closing the third solenoid valve and opening the second solenoid valve to allow the immersion liquid entering from the liquid filling port to flow into the liquid storage device;

[0049] The immersion liquid in the liquid storage device is pumped out by the second pump, so that the immersion liquid enters the liquid cooling device along the pipeline through the liquid area inlet of the liquid cooling device.

[0050] In a possible implementation, the method further includes:

[0051] During the process of replenishing the liquid cooling device, obtaining a pressure value collected by the pressure gauge every first preset time period;

[0052] If the pressure values ​​collected within a preset number of consecutive times show an upward trend, the first pump, the first solenoid valve and the fourth solenoid valve are turned on;

[0053] If the change amplitude of the pressure values ​​collected within a preset number of consecutive times is smaller than a preset threshold, the first pump, the first solenoid valve and the fourth solenoid valve are closed.

[0054] In a possible implementation, when the immersion liquid cooling system includes a first drain line and a second drain line, the method further includes:

[0055] After the device to be cooled in the liquid cooling device is turned off, adjusting the first three-way valve so that the first liquid discharge pipeline is connected to the second pump;

[0056] adjusting the second three-way valve so that the second pump is connected to the second liquid discharge pipeline;

[0057] Open the cover of the liquid cooling device so that the immersion liquid in the liquid cooling device flows into the first drainage pipeline, and start the second pump to pump out the immersion liquid in the first drainage pipeline using the second pump so that the immersion liquid flows out of the drainage port through the second drainage pipeline.

[0058] In a possible implementation, when the immersion liquid cooling system includes a third drain line and a fourth drain line, the method further includes:

[0059] After the device to be cooled in the liquid cooling device is turned off, adjusting the second three-way valve so that the liquid cooling device is connected to the fourth liquid drain line;

[0060] adjusting the first three-way valve so that the fourth liquid discharge pipeline is connected to the inlet of the second pump;

[0061] Opening the fifth solenoid valve so that the outlet of the second pump is connected to the third liquid discharge pipeline;

[0062] Open the cover of the liquid cooling device so that the immersion liquid in the liquid cooling device flows into the fourth drainage pipeline, and start the second pump to pump out the immersion liquid in the fourth drainage pipeline using the second pump, so that the immersion liquid flows out of the drainage port through the third drainage pipeline.

[0063] In a third aspect, an embodiment of the present application provides a control device, which is located in the liquid cooling device of the immersion liquid cooling system described in the first aspect above, and includes:

[0064] a switch module, configured to, when the device to be cooled in the liquid cooling device is started, activate the first pump, the first solenoid valve, the third solenoid valve, and the fourth solenoid valve, and close the second solenoid valve, so that the first pump draws out the air and immersion liquid vapor in the liquid cooling device and allows the air and immersion liquid vapor to enter the first condenser, the immersion liquid condensed by the first condenser flows into the liquid storage device through the third solenoid valve, and the air is discharged through the first solenoid valve and the exhaust port;

[0065] The regulating module is used to regulate the first three-way valve so that the second pump and the liquid storage device are connected; regulate the second three-way valve so that the liquid area inlet of the liquid cooling device and the second pump are connected; and regulate the opening of the opening valve to adjust the pressure inside the liquid cooling device until the exhaust is completed.

[0066] In a possible implementation, the adjustment module is specifically configured to:

[0067] Obtaining a pressure value collected by the pressure gauge once every first preset time period;

[0068] If the pressure values ​​collected within a preset number of consecutive times show an upward trend, the opening of the opening valve is reduced by a preset opening value;

[0069] After a second preset time, closing the first pump, the first solenoid valve, the third solenoid valve, and the fourth solenoid valve, and reopening the first pump, the first solenoid valve, the third solenoid valve, and the fourth solenoid valve;

[0070] Return to the step of obtaining the pressure value collected by the pressure gauge every first preset time period until the pressure value collected within the preset number of consecutive times shows a downward trend, then determine that the exhaust is completed.

[0071] In a possible implementation, the switch module is further configured to shut down the first pump, the first solenoid valve, the third solenoid valve, and the fourth solenoid valve;

[0072] The adjustment module is also used to obtain the pressure value collected by the pressure gauge once every first preset time period; if the pressure value is greater than the first pressure threshold, the opening of the opening valve is increased by the preset opening value; if the pressure value is less than the second pressure threshold, the opening of the opening valve is reduced by the preset opening value.

[0073] In a possible implementation, the switch module is further configured to:

[0074] If the opening of the opening valve is at the maximum opening value and the pressure values ​​collected within a preset number of consecutive times show an upward trend, the third solenoid valve, the fourth solenoid valve and the first pump are opened;

[0075] If it is determined that the liquid level value identified by the liquid level sensor in the liquid storage device is greater than or equal to a first preset height, the second pump is turned on, and the immersion liquid in the liquid storage device is pumped out by the second pump, so that the immersion liquid enters the liquid cooling device along the pipeline through the liquid area inlet of the liquid cooling device.

[0076] In a possible implementation, the regulating module is further configured to increase the power of the first pump by a preset power value if the pressure values ​​collected within a preset number of consecutive times show an upward trend.

[0077] In a possible implementation, the switch module is further configured to:

[0078] If it is determined that the liquid level value identified by the liquid level sensor of the liquid cooling device is less than a second preset height, closing the third solenoid valve and opening the second solenoid valve to allow the immersion liquid entering from the liquid filling port to flow into the liquid storage device;

[0079] The immersion liquid in the liquid storage device is pumped out by the second pump, so that the immersion liquid enters the liquid cooling device along the pipeline through the liquid area inlet of the liquid cooling device.

[0080] In a possible implementation, the switch module is further configured to:

[0081] During the process of replenishing the liquid cooling device, obtaining a pressure value collected by the pressure gauge every first preset time period;

[0082] If the pressure values ​​collected within a preset number of consecutive times show an upward trend, the first pump, the first solenoid valve and the fourth solenoid valve are turned on;

[0083] If the change amplitude of the pressure values ​​collected within a preset number of consecutive times is smaller than a preset threshold, the first pump, the first solenoid valve and the fourth solenoid valve are closed.

[0084] In a possible implementation, when the immersion liquid cooling system includes a first drain pipeline and a second drain pipeline, the adjustment module is further configured to, after the device to be cooled in the liquid cooling device is turned off, adjust the first three-way valve so that the first drain pipeline is connected to the second pump; and adjust the second three-way valve so that the second pump is connected to the second drain pipeline.

[0085] The switch module is further used to open the cover of the liquid cooling device so that the immersion liquid in the liquid cooling device flows into the first drainage pipeline, and to start the second pump to pump out the immersion liquid in the first drainage pipeline using the second pump so that the immersion liquid flows out of the drainage port through the second drainage pipeline.

[0086] In a possible implementation, when the immersion liquid cooling system includes a third drain line and a fourth drain line, the adjustment module is further configured to, after the device to be dissipated heat in the liquid cooling device is turned off, adjust the second three-way valve so that the liquid cooling device is connected to the fourth drain line; and adjust the first three-way valve so that the fourth drain line is connected to the inlet of the second pump;

[0087] The switch module is further configured to open the fifth solenoid valve so that the outlet of the second pump is connected to the third drainage pipeline; open the cover of the liquid cooling device so that the immersion liquid in the liquid cooling device flows into the fourth drainage pipeline; and open the second pump to pump out the immersion liquid in the fourth drainage pipeline using the second pump so that the immersion liquid flows out of the drainage port through the third drainage pipeline.

[0088] In a fourth aspect, an embodiment of the present application provides a control device, which is located in the liquid cooling device of the immersion liquid cooling system described in the first aspect above, and includes:

[0089] processor;

[0090] transceiver;

[0091] A machine-readable storage medium storing machine-executable instructions capable of being executed by the processor; the machine-executable instructions prompting the processor to perform the following steps:

[0092] When the device to be cooled in the liquid cooling device is started, the first pump, the first solenoid valve, the third solenoid valve, and the fourth solenoid valve are opened, and the second solenoid valve is closed, so that the first pump draws out the air and immersion liquid vapor in the liquid cooling device and allows the air and immersion liquid vapor to enter the first condenser. The immersion liquid condensed by the first condenser flows into the liquid storage device through the third solenoid valve, and the air is discharged through the first solenoid valve and the exhaust port.

[0093] Adjusting the first three-way valve to allow communication between the second pump and the liquid storage device;

[0094] adjusting the second three-way valve to allow communication between the liquid zone inlet of the liquid cooling device and the second pump;

[0095] The opening of the opening valve is adjusted to adjust the pressure inside the liquid cooling device until the exhaust is completed.

[0096] In one possible implementation, the machine executable instructions further cause the processor to execute the following steps:

[0097] Obtaining a pressure value collected by the pressure gauge once every first preset time period;

[0098] If the pressure values ​​collected within a preset number of consecutive times show an upward trend, the opening of the opening valve is reduced by a preset opening value;

[0099] After a second preset time, closing the first pump, the first solenoid valve, the third solenoid valve, and the fourth solenoid valve, and reopening the first pump, the first solenoid valve, the third solenoid valve, and the fourth solenoid valve;

[0100] Return to the step of obtaining the pressure value collected by the pressure gauge every first preset time period until the pressure value collected within the preset number of consecutive times shows a downward trend, then determine that the exhaust is completed.

[0101] In one possible implementation, the machine executable instructions further cause the processor to execute the following steps:

[0102] closing the first pump, the first solenoid valve, the third solenoid valve, and the fourth solenoid valve;

[0103] Obtaining the pressure value collected by the pressure gauge once every first preset time period;

[0104] If the pressure value is greater than a first pressure threshold, increasing the opening of the opening valve by a preset opening value;

[0105] If the pressure value is less than the second pressure threshold, the opening of the opening valve is reduced by a preset opening value.

[0106] In one possible implementation, the machine executable instructions further cause the processor to execute the following steps:

[0107] If the opening of the opening valve is at the maximum opening value and the pressure values ​​collected within a preset number of consecutive times show an upward trend, the third solenoid valve, the fourth solenoid valve and the first pump are opened;

[0108] If it is determined that the liquid level value identified by the liquid level sensor in the liquid storage device is greater than or equal to a first preset height, the second pump is turned on, and the immersion liquid in the liquid storage device is pumped out by the second pump, so that the immersion liquid enters the liquid cooling device along the pipeline through the liquid area inlet of the liquid cooling device.

[0109] In one possible implementation, the machine executable instructions further cause the processor to execute the following steps:

[0110] If the pressure values ​​collected within a preset number of consecutive times show an upward trend, the power of the first pump is increased by a preset power value.

[0111] In one possible implementation, the machine executable instructions further cause the processor to execute the following steps:

[0112] If it is determined that the liquid level value identified by the liquid level sensor of the liquid cooling device is less than a second preset height, closing the third solenoid valve and opening the second solenoid valve to allow the immersion liquid entering from the liquid filling port to flow into the liquid storage device;

[0113] The immersion liquid in the liquid storage device is pumped out by the second pump, so that the immersion liquid enters the liquid cooling device along the pipeline through the liquid area inlet of the liquid cooling device.

[0114] In one possible implementation, the machine executable instructions further cause the processor to execute the following steps:

[0115] During the process of replenishing the liquid cooling device, obtaining a pressure value collected by the pressure gauge every first preset time period;

[0116] If the pressure values ​​collected within a preset number of consecutive times show an upward trend, the first pump, the first solenoid valve and the fourth solenoid valve are turned on;

[0117] If the change amplitude of the pressure values ​​collected within a preset number of consecutive times is smaller than a preset threshold, the first pump, the first solenoid valve and the fourth solenoid valve are closed.

[0118] In a possible implementation, when the immersion liquid cooling system includes a first drain line and a second drain line, the machine executable instructions further cause the processor to execute the following steps:

[0119] After the device to be cooled in the liquid cooling device is turned off, adjusting the first three-way valve so that the first liquid discharge pipeline is connected to the second pump;

[0120] adjusting the second three-way valve so that the second pump is connected to the second liquid discharge pipeline;

[0121] Open the cover of the liquid cooling device so that the immersion liquid in the liquid cooling device flows into the first drainage pipeline, and start the second pump to pump out the immersion liquid in the first drainage pipeline using the second pump so that the immersion liquid flows out of the drainage port through the second drainage pipeline.

[0122] In a possible implementation, when the immersion liquid cooling system includes a third drain line and a fourth drain line, the machine executable instructions further cause the processor to execute the following steps:

[0123] After the device to be cooled in the liquid cooling device is turned off, adjusting the second three-way valve so that the liquid cooling device is connected to the fourth liquid drain line;

[0124] adjusting the first three-way valve so that the fourth liquid discharge pipeline is connected to the inlet of the second pump;

[0125] Opening the fifth solenoid valve so that the outlet of the second pump is connected to the third liquid discharge pipeline;

[0126] Open the cover of the liquid cooling device so that the immersion liquid in the liquid cooling device flows into the fourth drainage pipeline, and start the second pump to pump out the immersion liquid in the fourth drainage pipeline using the second pump, so that the immersion liquid flows out of the drainage port through the third drainage pipeline.

[0127] In a fifth aspect, an embodiment of the present application provides a machine-readable storage medium storing machine-executable instructions. When called and executed by a processor, the machine-executable instructions prompt the processor to implement the method described in the second aspect above.

[0128] In a sixth aspect, an embodiment of the present application further provides a computer program product, which prompts the processor to implement the method described in the second aspect above.

[0129] With the immersion liquid cooling system, control method, and control device provided in the embodiments of the present application, since the outlet of the gas zone of the liquid cooling device is sequentially connected in series to a first pump, a first condenser, a first solenoid valve, and an exhaust port, the air in the gas zone of the liquid cooling device can be discharged from the exhaust port by controlling the first pump and the first solenoid valve. Therefore, there is no need to open the lid of the liquid cooling device during the exhaust process. Furthermore, the first condenser is also connected to a third solenoid valve, which is connected to a liquid storage device. Therefore, during the exhaust process, the immersion liquid cooled by the first condenser can enter the liquid storage device and finally return to the liquid zone of the liquid cooling device via the second pump. Therefore, there is no need to open the lid during the exhaust process, which can reduce the loss of immersion liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0130] The drawings described herein are used to provide further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0131] FIG1 is a schematic structural diagram of an immersion liquid cooling system provided in an embodiment of the present application;

[0132] FIG2 is a schematic structural diagram of another immersion liquid cooling system provided in an embodiment of the present application;

[0133] FIG3 is a flow chart of a control method for an immersion liquid cooling system provided in an embodiment of the present application;

[0134] FIG4 is a schematic diagram of an exhaust mode of an immersion liquid cooling system provided in an embodiment of the present application;

[0135] FIG5 is a schematic diagram of an energy-saving mode of an immersion liquid cooling system provided in an embodiment of the present application;

[0136] FIG6 is a schematic diagram of an enhanced heat dissipation mode of an immersion liquid cooling system provided in an embodiment of the present application;

[0137] FIG7 is a schematic diagram of a liquid replenishment mode of an immersion liquid cooling system provided in an embodiment of the present application;

[0138] FIG8 is a schematic diagram of a drainage mode of an immersion liquid cooling system provided in an embodiment of the present application;

[0139] FIG9 is a schematic structural diagram of a control device provided in an embodiment of the present application;

[0140] FIG10 is a schematic structural diagram of another control device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0141] To make the objectives, technical solutions, and advantages of this application more clearly understood, the present application is further described below with reference to the accompanying drawings and examples. It is apparent that the described examples are only a portion of the embodiments of this application, and not all of them. All other embodiments derived by persons of ordinary skill in the art based on the examples in this application are intended to fall within the scope of protection of this application.

[0142] In order to avoid waste of immersion liquid, an embodiment of the present application provides an immersion liquid cooling system, as shown in Figure 1, the system includes a liquid cooling device, a first pump, a first condenser, a first solenoid valve, a second pump, a liquid storage device and a third solenoid valve; wherein the first pump can be a vacuum pump or other pump capable of extracting gas, and the second pump can be a liquid pump.

[0143] The gas zone outlet of the liquid cooling system is connected to one end of the first pump, the other end of the first pump is connected to the inlet of the first condenser, and the outlet of the first condenser is connected to a first solenoid valve. The first solenoid valve is connected to the exhaust port and controls the exhaust port's on / off state. The upper portion of the liquid cooling system is the gas zone, while the lower portion is the liquid zone. The liquid zone contains immersion liquid, and the device to be cooled is placed in the immersion liquid. The dotted line in Figure 1 represents the liquid level of the liquid cooling system. The gas zone is above the liquid level, and the liquid zone is below. The rectangle in the liquid zone represents the device to be cooled.

[0144] The liquid area inlet of the liquid cooling device is connected to one end of the second pump, and the other end of the second pump is connected to the liquid storage device. The liquid storage device is used to store the immersion liquid condensed by the first condenser, and the liquid storage device can be a liquid storage tank or a liquid storage box.

[0145] One end of the third solenoid valve is connected to the outlet of the first condenser, and the other end is connected to the second inlet of the liquid storage device. The third solenoid valve is used to control the flow of the pipeline between the first condenser and the second inlet of the liquid storage device. The liquid storage device also has a first inlet. In Figure 1, the first inlet of the liquid storage device is the inlet at the top of the liquid storage device, and the second inlet is the inlet on the right side of the liquid storage device.

[0146] The passage between the gas zone outlet of the liquid cooling device, the first pump, the first condenser and the first solenoid valve is a pipeline. When the first solenoid valve is opened, the gas in the pipeline between the first condenser and the first solenoid valve can be discharged through the exhaust port.

[0147] In addition, the passage between the first condenser, the third solenoid valve, the liquid storage device, the second pump and the liquid area inlet of the liquid cooling device is a pipeline. The immersion liquid vapor will be cooled into immersion liquid after passing through the first condenser, and then flow into the liquid storage device along the pipeline.

[0148] In the immersion liquid cooling system provided in the embodiments of the present application, since the outlet of the gas zone of the liquid cooling device is sequentially connected in series to a first pump, a first condenser, a first solenoid valve, and an exhaust port, air in the gas zone of the liquid cooling device can be discharged from the exhaust port by controlling the first pump and the first solenoid valve. Therefore, there is no need to open the lid of the liquid cooling device during the exhaust process. Furthermore, the first condenser is also connected to a third solenoid valve, which is connected to a liquid storage device. Therefore, during the exhaust process, the immersion liquid cooled by the first condenser can enter the liquid storage device and finally return to the liquid zone of the liquid cooling device via the second pump. This eliminates the need to open the lid during the exhaust process, thereby reducing the loss of immersion liquid.

[0149] In some embodiments of the present application, as shown in FIG1 , the system further includes a second solenoid valve. The first inlet of the liquid storage device is connected to the second solenoid valve; the second solenoid valve is connected to the liquid infusion port and is configured to control the on / off state of the liquid infusion port. The liquid storage device is configured to contain the immersion liquid injected through the liquid infusion port.

[0150] In this way, the second solenoid valve can control the opening and closing state of the liquid inlet. When the second solenoid valve is open, immersion liquid injected from the liquid inlet enters the liquid storage device. The immersion liquid in the liquid storage device is then pumped into the liquid cooling device by the second pump, thus achieving liquid replenishment. During this process, there is no need to open the cover, which can reduce the loss of immersion liquid.

[0151] In some embodiments of the present application, as shown in Figure 1, a second condenser is provided in the gas area of ​​the liquid cooling equipment, and the first condenser and the second condenser share a coolant outlet and a coolant inlet; wherein, the second condenser can be in the form of a coil, and the first condenser can specifically be a heat exchanger, and a coil is provided inside the first condenser. When there is coolant in the coil, the immersion liquid vapor is condensed into immersion liquid through the coil and will drip into the cavity of the first condenser, and then flow into the liquid storage device along the pipeline.

[0152] An opening valve is provided at the coolant inlet, and a fourth solenoid valve is provided between the opening valve and the first condenser. The fourth solenoid valve is used to control the on-off of the pipeline between the opening valve and the condenser pipe inlet of the first condenser;

[0153] The opening valve is also connected to the condensation pipe inlet of the second condenser.

[0154] The opening valve is an adjustable valve. By adjusting the opening of the opening valve, the flow rate of the coolant can be controlled. When the fourth solenoid valve is open, the coolant flowing in through the coolant inlet enters the first condenser and the second condenser respectively, and the coolant in the first condenser and the second condenser is discharged through the coolant outlet. When the fourth solenoid valve is closed, the coolant flowing in through the coolant inlet flows only into the second condenser.

[0155] In this embodiment of the present application, the fourth solenoid valve can be used to flexibly adjust whether coolant flows into the first condenser inlet. When exhaust is required, the fourth solenoid valve is opened as needed, allowing the first condenser to condense the immersion liquid vapor, thereby avoiding waste of immersion liquid. When the first condenser is no longer needed, the fourth solenoid valve can be flexibly closed to prevent coolant from flowing into the first condenser. Furthermore, this embodiment of the present application can adjust the pressure of the liquid cooling device by adjusting the opening of the opening valve, solving the problem of the existing art in which the internal pressure of the liquid cooling device cannot be adjusted.

[0156] In some embodiments of the present application, the immersion liquid cooling system further includes a drainage pipeline. The embodiments of the present application provide two ways of setting up the drainage pipeline.

[0157] Method 1: As shown in FIG1 , the immersion liquid cooling system further includes a first liquid drain pipe, a second liquid drain pipe, a first three-way valve, and a second three-way valve;

[0158] The first three-way valve is located between the second pump and the liquid storage device, and the first three-way valve is connected to the first liquid discharge pipeline;

[0159] The second three-way valve is located between the liquid area inlet of the liquid cooling device and the second pump, and the second three-way valve is connected to the second liquid discharge pipeline.

[0160] Among them, when the first three-way valve and the second three-way valve are opened according to the main route, the first three-way valve is connected to the second pump and the liquid storage device, and the second three-way valve is connected to the liquid area inlet of the liquid cooling equipment and the second pump. At this time, the first discharge pipeline is in a disconnected state, and the second discharge pipeline is also in a disconnected state.

[0161] Method 2, as shown in FIG2 , the immersion liquid cooling system further includes a third drain line, a fourth drain line, a first three-way valve, a second three-way valve and a fifth solenoid valve;

[0162] The first three-way valve is located between the second pump and the liquid storage device, and the second three-way valve is located between the liquid area inlet of the liquid cooling device and the second pump;

[0163] One end of the third liquid discharge pipeline is connected to the outlet of the second pump, and the other end is connected to the liquid discharge port, and a fifth solenoid valve is provided between the third liquid discharge pipeline and the second pump;

[0164] One end of the fourth liquid discharge pipeline is connected to the first three-way valve, and the other end is connected to the second three-way valve.

[0165] Among them, when the first three-way valve and the second three-way valve are opened according to the main route, the first three-way valve is connected to the second pump and the liquid storage device, and the second three-way valve is connected to the liquid area inlet of the liquid cooling equipment and the second pump. At this time, the third discharge pipeline is in a disconnected state, and the fourth discharge pipeline is also in a disconnected state.

[0166] It should be noted that the arrangement of the liquid discharge pipeline in FIG2 is different from that in FIG1 , and FIG2 also includes a fifth solenoid valve, while other components and connection relationships are the same as those in FIG1 .

[0167] In some embodiments of the present application, as shown in FIG1 and FIG2 , a pressure gauge is provided between the gas zone outlet of the liquid cooling device and the first pump, and the pressure collected by the pressure gauge is used to indicate the pressure inside the liquid cooling device.

[0168] Optionally, a liquid level sensor is provided in the liquid cooling device, and a liquid level sensor is provided in the liquid storage tank. The immersion liquid in the above embodiment may be a fluorinated liquid.

[0169] In the embodiments of the present application, a control device is provided within the liquid cooling device, and is configured to control the opening valve, the first solenoid valve, the second solenoid valve, the third solenoid valve, the fourth solenoid valve, the first pump, the second pump, the first three-way valve, and the second three-way valve. It can be understood that the control device is electrically connected to the opening valve, the first solenoid valve, the second solenoid valve, the third solenoid valve, the fourth solenoid valve, the first pump, the second pump, the first three-way valve, and the second three-way valve.

[0170] Optionally, the control device is electrically connected to the pressure gauge, the liquid level sensor in the liquid cooling device, and the liquid level sensor in the liquid storage tank, and the control device can obtain the pressure collected by the pressure gauge and the liquid level value identified by the liquid level sensor.

[0171] Furthermore, the control device can be connected to a display screen, which can be located on the outer surface of the liquid cooling device or a separate device, although this is not a limitation in the present embodiment. The display screen can display the current operating mode of the immersion cooling system, and the user can adjust the current operating mode of the immersion cooling system through the display screen. In this way, the control device can automatically control the immersion cooling system or control the immersion cooling system according to user instructions, providing greater flexibility and intelligence.

[0172] Based on the above embodiments, an embodiment of the present application provides a control method for an immersion liquid cooling system. The immersion liquid cooling system is the immersion liquid cooling system described in the above embodiments. The method is executed by the above control device, as shown in FIG3 , and includes:

[0173] S301. When the device to be cooled in the liquid cooling device is started, the first pump, the first solenoid valve, the third solenoid valve and the fourth solenoid valve are turned on, and the second solenoid valve is closed, so that the first pump draws out the air and immersion liquid vapor in the liquid cooling device, and the air and immersion liquid vapor enter the first condenser. The immersion liquid condensed by the first condenser flows into the liquid storage device through the third solenoid valve, and the air is discharged through the first solenoid valve and the exhaust port.

[0174] The devices to be cooled in the liquid cooling device are electronic devices in the Internet Technology (IT) system of the data center, and the electronic devices may be servers, routers, switches and other devices that need to be cooled.

[0175] When an IT system is first started up, a large amount of air is trapped within the liquid cooling system. This can affect the condensation efficiency of the secondary condenser and cause excessive pressure within the system, affecting the boiling point of the immersion liquid. Therefore, when IT equipment is first started up, the immersion cooling system should be switched to exhaust mode to remove the air from the system.

[0176] The exhaust pattern of the immersion liquid cooling system is shown in FIG4 . The arrows in FIG4 indicate the flow direction in the pipeline, and the positions marked with crosses indicate that the pipeline is not connected.

[0177] After the control device turns on the first pump, the first solenoid valve, the third solenoid valve and the fourth solenoid valve, since the fourth solenoid valve is in the open state, the pipeline between the coolant inlet and the condenser tube inlet of the first condenser is connected, and the coolant continuously entering from the coolant inlet can enter the condenser tubes of the first condenser and the second condenser respectively, and then pass through the condenser tubes of the first condenser and the second condenser and be discharged from the coolant outlet.

[0178] Furthermore, the first pump is in the open state, extracting immersion liquid vapor and air from the gas zone of the liquid cooling device. The extracted immersion liquid vapor and air enter the first condenser along the pipeline. Upon contact with the condenser tube inside the first condenser, the immersion liquid vapor transforms into a liquid, namely the immersion liquid. Since the first solenoid valve is in the open state, the air that has passed through the first condenser can be discharged through the exhaust port. Furthermore, since the third solenoid valve is in the open state, the immersion liquid flowing out of the first condenser can flow along the pipeline into the liquid storage device.

[0179] S302: Regulate the first three-way valve to allow the second pump to communicate with the liquid storage device.

[0180] S303: Regulate the second three-way valve to connect the liquid area inlet of the liquid cooling device with the second pump.

[0181] It can be understood that the first three-way valve and the second three-way valve are both opened according to the main route, and each drainage pipeline is in a disconnected state.

[0182] S304: Adjust the opening of the opening valve to adjust the pressure inside the liquid cooling device until exhaust is completed.

[0183] Among them, the opening degree of the opening valve is negatively correlated with the pressure inside the liquid cooling equipment. When the opening degree of the opening valve is increased, the flow rate of the coolant in the second condenser will increase, and the condensation speed of the immersion liquid vapor will be faster, resulting in less immersion liquid vapor and lower pressure.

[0184] In this method, since a large amount of air is present within the liquid cooling device when the device to be cooled is initially activated, the first pump, first solenoid valve, third solenoid valve, and fourth solenoid valve are opened, while the second solenoid valve is closed. This allows the first pump to pump air and immersion liquid vapor from the liquid cooling device, allowing the air to pass through the first condenser and the first solenoid valve and be discharged from the exhaust port. During the exhaust process, the lid of the liquid cooling device does not need to be opened, thus preventing the escape of immersion liquid vapor. Furthermore, after the immersion liquid vapor is cooled to immersion liquid by the second condenser, it can flow through the third solenoid valve into the liquid storage device. Because the first and second three-way valves connect the liquid storage device and the second pump to the liquid inlet of the liquid cooling device, the immersion liquid stored in the liquid storage device can ultimately return to the liquid cooling device, avoiding waste of immersion liquid. During the exhaust process, the pressure within the liquid cooling device is controlled by adjusting the opening of the valve, maintaining a stable pressure within the liquid cooling device. This prevents deformation of the liquid cooling device caused by excessive or insufficient pressure and ensures that exhaust is completed without wasting immersion liquid.

[0185] In some embodiments of the present application, the above-mentioned S304, adjusting the opening of the opening valve to adjust the pressure inside the liquid cooling device until the exhaust is completed, can be specifically implemented as follows:

[0186] Step 1: Obtain a pressure value collected by a pressure gauge every first preset time period.

[0187] The control device is electrically connected to the pressure gauge and can obtain the latest pressure value collected by the pressure gauge. The first preset time length can be set based on experience, for example, the first preset time length can be 3 seconds.

[0188] Step 2: If the pressure values ​​collected within a preset number of consecutive times show an upward trend, the opening of the opening valve is reduced by a preset opening value.

[0189] The preset number of times may be set based on experience, for example, the preset number of times is 3. The preset opening value is the step size of each adjustment of the opening valve, which may be preset based on experience.

[0190] Step 3: After the second preset time, close the first pump, the first solenoid valve, the third solenoid valve and the fourth solenoid valve, and reopen the first pump, the first solenoid valve, the third solenoid valve and the fourth solenoid valve.

[0191] Among them, the second preset time can be set based on experience. After the second preset time, it is determined that one exhaust is completed, and then the first pump, the first solenoid valve, the third solenoid valve and the fourth solenoid valve are closed and reopened to continue the second exhaust.

[0192] Step 4: Return to step 1 until the pressure values ​​collected within the preset number of consecutive times show a downward trend, then it is determined that the exhaust is completed.

[0193] After returning to step 1, the next exhaust process begins. The exhaust method is the same each time until the pressure values ​​collected within the preset number of consecutive times show a downward trend, and the exhaust is determined to be completed.

[0194] According to experiments, the pressure value can show a downward trend through three exhaust processes. Therefore, as another implementation method, the number of exhaust times can be set to 3 times in advance, that is, after completing 3 exhaust times, it is determined that the exhaust is completed.

[0195] In the embodiment of the present application, during the exhaust process, the opening valve is adjusted according to the pressure of the liquid cooling device, thereby adjusting the pressure inside the liquid cooling device, ensuring that the exhaust is completed without deformation of the liquid cooling device.

[0196] In some embodiments of the present application, after the exhaust is completed, the liquid cooling system can enter the operating mode. The embodiments of the present application provide two operating modes, operating mode 1 is an energy-saving mode, and operating mode 2 is an enhanced heat dissipation mode.

[0197] After the exhaust is completed, the control device defaults to adjusting the liquid cooling system to energy-saving mode. That is, after determining that the exhaust is completed, the method further includes: shutting down the first pump, the first solenoid valve, the third solenoid valve, and the fourth solenoid valve; obtaining the pressure value collected by the pressure gauge once every first preset time period; if the pressure value is greater than a first pressure threshold, increasing the opening of the opening valve by a preset opening value; if the pressure value is less than a second pressure threshold, decreasing the opening of the opening valve by a preset opening value. The first pressure threshold and the second pressure threshold are both preset based on experience, and the first pressure threshold is greater than the second pressure threshold.

[0198] The energy-saving mode of the immersion liquid cooling system is shown in Figure 5. The first three-way valve and the second three-way valve remain open according to the main circuit, and only the opening valve is used. The solenoid valves, the second pump, and the first pump remain closed.

[0199] In energy-saving mode, the exhaust operation is temporarily not performed. The flow of coolant entering the second condenser is controlled by adjusting the opening of the opening valve, thereby adjusting the pressure inside the liquid cooling device. This can avoid deformation of the liquid cooling device caused by excessive or insufficient pressure and save energy.

[0200] When the immersion cooling system is operating in energy-saving mode, if the pressure value continues to exceed a first pressure threshold, the control device will continuously increase the opening of the opening valve. After the opening valve is adjusted to the maximum opening, if the pressure value continues to rise, the control device may adjust the operating mode of the immersion cooling system to the enhanced heat dissipation mode. Based on this, the method further includes: if the opening of the opening valve is at the maximum opening value and the pressure values ​​collected for a predetermined number of consecutive times show an upward trend, then opening the third solenoid valve, the fourth solenoid valve, and the first pump;

[0201] If it is determined that the liquid level value identified by the liquid level sensor in the liquid storage device is greater than or equal to the first preset height, the second pump is turned on, and the immersion liquid in the liquid storage device is pumped out by the second pump, so that the immersion liquid enters the liquid cooling device along the pipeline through the liquid area inlet of the liquid cooling device.

[0202] The first preset height is also a preset empirical value, which is related to the height inside the liquid storage device. For example, the first preset height can be half the height inside the liquid storage device.

[0203] The strong heat dissipation mode of the immersion liquid cooling system is shown in Figure 6. The opening valve is at the maximum opening, and the fourth solenoid valve is in the open state. The coolant entering from the coolant inlet enters the condenser tubes of the first condenser and the second condenser respectively, and flows out from the condenser tubes and is discharged through the coolant outlet.

[0204] The first and second solenoid valves are closed, the first pump and the third solenoid valve are open, and the first and second three-way valves are both open as the main circuit. The first pump can pump out immersion liquid vapor from the liquid cooling device. This immersion liquid vapor is condensed in the first condenser, converted into immersion liquid, and then flows through the third solenoid valve into the liquid storage device.

[0205] When the liquid level in the liquid storage device reaches a first preset height, the second pump causes the immersion liquid in the liquid storage device to flow into the liquid area of ​​the liquid cooling device, thereby achieving a closed-loop circulation of the immersion liquid within the immersion cooling system and reducing the waste of immersion liquid.

[0206] In enhanced cooling mode, the control device adjusts the pressure within the liquid cooling device by regulating the power of the first pump, thereby affecting the boiling point of the immersion liquid within the liquid cooling device. If the pressure values ​​collected over a preset number of consecutive times show an upward trend, the power of the first pump can be increased by a preset value, thereby reducing the pressure within the liquid cooling device and, in turn, the boiling point of the immersion liquid. This makes it easier for the immersion liquid to transform into immersion liquid vapor, thereby enhancing the cooling effect.

[0207] The control device can determine whether the heat dissipation effect needs to be enhanced according to the pressure value in the liquid cooling device. For example, if the pressure values ​​obtained for a preset number of consecutive times continue to increase, the power of the first pump can be increased by a preset power value.

[0208] By adopting this method, the operating mode of the immersion liquid cooling system can be automatically switched, and pressure control can be realized based on the pressure value inside the liquid cooling equipment, which is more intelligent and improves the heat dissipation effect while saving energy.

[0209] It should be noted that during the operation of the immersion liquid cooling system, the user can adjust the operating mode of the immersion liquid cooling system as needed through the display screen. After the control device recognizes the user's adjustment operation, it can switch to the operating mode selected by the user according to the user's needs.

[0210] In some embodiments of the present application, when it is determined that the liquid cooling device requires liquid refilling, the control device may further activate a liquid refilling mode. Specifically, the method further includes: if it is determined that the liquid level value detected by the liquid level sensor of the liquid cooling device is less than a second preset height, closing the third solenoid valve and opening the second solenoid valve to allow the immersion liquid entering from the liquid refilling port to flow into the liquid storage device; and utilizing the second pump to pump the immersion liquid from the liquid storage device so that the immersion liquid flows along the pipeline through the liquid area inlet of the liquid cooling device and enters the liquid cooling device.

[0211] Optionally, during the refilling process, the pressure value in the liquid cooling device may change, so the control device may further control the pressure in the liquid cooling device based on the change in pressure value. That is, during the refilling process for the liquid cooling device, the pressure value collected by the pressure gauge may be obtained once every first preset time period.

[0212] If the pressure values ​​collected within a preset number of consecutive times show an upward trend, the first pump, the first solenoid valve and the fourth solenoid valve are turned on;

[0213] If the change amplitude of the pressure values ​​collected within a preset number of consecutive times is smaller than a preset threshold, the first pump, the first solenoid valve and the fourth solenoid valve are closed.

[0214] Figure 7 shows the refill mode of the immersion cooling system. In refill mode, the third solenoid valve is normally closed. To begin draining, the first pump, first solenoid valve, and fourth solenoid valve are closed, while the second solenoid valve and second pump are open. The first and second three-way valves are open as the main path.

[0215] The replenished immersion liquid flows through the liquid replenishment port, passes through the second solenoid valve, and then flows into the liquid storage device. The second pump then pumps the immersion liquid into the liquid storage device and into the liquid inlet of the liquid cooling device, thus achieving liquid replenishment. During the liquid replenishment process, the lid of the liquid cooling device does not need to be opened, and coolant continues to flow into the second condenser, meaning that the second condenser remains in operation, without affecting heat dissipation.

[0216] It is understood that as the immersion liquid flows into the liquid cooling device, the pressure inside the liquid cooling device will increase. Therefore, the electronic device also monitors the pressure inside the liquid cooling device. If the pressure values ​​collected within a preset number of consecutive times show an upward trend, the first pump, the first solenoid valve, and the fourth solenoid valve can be activated, thereby allowing the immersion liquid vapor and air in the liquid cooling device to enter the first condenser. The air is eventually discharged through the exhaust port, and the immersion liquid condensed by the first condenser enters the liquid storage device. As the gas in the liquid cooling device is discharged, the pressure will also decrease.

[0217] If the change amplitude of the pressure values ​​collected within the preset number of consecutive times is less than the preset threshold, it means that the pressure in the liquid cooling device is relatively stable, and there is no need to perform exhaust operation, that is, keep the first pump, the first solenoid valve and the fourth solenoid valve in the closed state.

[0218] It should be noted that FIG7 takes the first pump, the first solenoid valve and the fourth solenoid valve in the open state as an example.

[0219] Optionally, during the liquid replenishment process, the pressure value in the liquid cooling device can also be adjusted by adjusting the opening of the opening valve. The adjustment method can refer to the relevant description in the above embodiment and will not be repeated here.

[0220] By adopting this method, liquid replenishment can be achieved without opening the cover, and automatic pressure control can be achieved during the liquid replenishment process, which does not affect the operation of the immersion liquid cooling system and reduces the loss of immersion liquid escape.

[0221] The following introduces two drainage methods provided in the embodiments of the present application.

[0222] When the IT system is shut down or the liquid cooling device needs to be moved, the immersion liquid in the liquid cooling device needs to be drained. In the embodiment of the present application, the control device can automatically start the drain mode or start the drain mode after receiving a user-triggered instruction to start the drain mode.

[0223] When the drainage pipeline in the embodiment of the present application is arranged as shown in Figure 1, the method includes: after the heat dissipation device in the liquid cooling device is turned off, adjusting the first three-way valve so that the first drainage pipeline is connected to the second pump; adjusting the second three-way valve so that the second pump is connected to the second drainage pipeline; opening the cover of the liquid cooling device so that the immersion liquid in the liquid cooling device flows into the first drainage pipeline, and starting the second pump, using the second pump to pump out the immersion liquid in the first drainage pipeline, so that the immersion liquid flows out of the drainage port through the second drainage pipeline.

[0224] The first drainage mode of the immersion liquid cooling system is shown in FIG8 . In the drainage mode, the immersion liquid cooling system has stopped heat dissipation, no coolant flows into the coolant inlet, the first pump is turned off, and the cover of the liquid cooling device is opened.

[0225] The first three-way valve connects the first liquid discharge line to the inlet of the second pump, while the liquid storage device and the second pump are disconnected. The second three-way valve connects the outlet of the second pump to the second liquid discharge line, while the liquid area inlet of the liquid cooling device and the second pump are disconnected.

[0226] The second pump is in the open state. Under the action of the second pump, the liquid in the liquid cooling device flows into the second pump along the first drain pipeline and the first three-way valve, then passes through the second three-way valve to reach the second drain pipeline, and is finally discharged through the drain port.

[0227] During the drainage process, the heat dissipation device is turned off and no longer generates heat, so the immersion liquid will not evaporate. Therefore, even if the cover of the liquid cooling device is opened, the immersion liquid will not be wasted. In addition, the control device in the embodiment of the present application controls the second pump to drain the liquid more conveniently.

[0228] When the drain pipeline in the embodiment of the present application is arranged as shown in Figure 2, the method includes: after the heat dissipation device in the liquid cooling device is turned off, adjusting the second three-way valve so that the liquid cooling device is connected to the fourth drain pipeline; adjusting the first three-way valve so that the fourth drain pipeline is connected to the inlet of the second pump; opening the fifth solenoid valve so that the outlet of the second pump is connected to the third drain pipeline; opening the cover of the liquid cooling device so that the immersion liquid in the liquid cooling device flows into the fourth drain pipeline, and starting the second pump, using the second pump to pump out the immersion liquid in the fourth drain pipeline, so that the immersion liquid flows out of the drain port through the third drain pipeline.

[0229] For details, please refer to Figure 2. In the drainage mode, the immersion liquid cooling system has stopped cooling, no coolant flows into the coolant inlet, the first pump is turned off, and the cover of the liquid cooling device is opened.

[0230] The second three-way valve enables the liquid area of ​​the liquid cooling device to be connected to the fourth liquid discharge pipeline. At this time, the liquid area of ​​the liquid cooling device is not connected to the second pump outlet.

[0231] The first three-way valve enables the fourth liquid discharge pipeline to communicate with the inlet of the second pump, and at this time the liquid storage device is not connected with the inlet of the second pump.

[0232] Furthermore, by opening the fifth solenoid valve, the second pump is connected to the third liquid discharge pipeline.

[0233] Referring to the arrows in FIG2 , under the action of the second pump, the immersion liquid in the liquid area of ​​the liquid cooling device flows out, passes through the second three-way valve into the fourth drain line, then passes through the first three-way valve into the second pump, flows out of the second pump, passes through the fifth solenoid valve into the third drain line, and finally flows out of the drain port.

[0234] It should be noted that, in FIG2 , the opening of the connecting pipe of the liquid area of ​​the liquid cooling device can be used as both an inlet and an outlet.

[0235] It can be seen from the above embodiments that the immersion liquid cooling system of the embodiment of the present application supports exhaust, operation, refill and drainage modes, and in each of the above modes, the escape of immersion liquid can be reduced, and the immersion liquid cooling system is still operating stably during the exhaust and refill processes.

[0236] Corresponding to the above method embodiment, the embodiment of the present application further provides a control device, which is located in the liquid cooling device of the immersion liquid cooling system. As shown in FIG9 , the control device includes:

[0237] Switch module 901 is configured to activate the first pump, the first solenoid valve, the third solenoid valve, and the fourth solenoid valve, and close the second solenoid valve when the device to be cooled in the liquid cooling device is started, so that the first pump draws air and immersion liquid vapor from the liquid cooling device and allows the air and immersion liquid vapor to enter the first condenser. The immersion liquid condensed by the first condenser flows into the liquid storage device through the third solenoid valve, and the air is discharged through the first solenoid valve and the exhaust port.

[0238] The adjustment module 902 is used to adjust the first three-way valve to connect the second pump and the liquid storage device; adjust the second three-way valve to connect the liquid area inlet of the liquid cooling device and the second pump; and adjust the opening of the opening valve to adjust the pressure inside the liquid cooling device until the exhaust is completed.

[0239] Optionally, the adjustment module 902 is specifically configured to:

[0240] Obtaining a pressure value collected by the pressure gauge once every first preset time period;

[0241] If the pressure values ​​collected within the preset number of consecutive times show an upward trend, the opening of the opening valve is reduced by the preset opening value;

[0242] After a second preset time, closing the first pump, the first solenoid valve, the third solenoid valve, and the fourth solenoid valve, and reopening the first pump, the first solenoid valve, the third solenoid valve, and the fourth solenoid valve;

[0243] Return to the step of obtaining the pressure value collected by the pressure gauge every first preset time period until the pressure value collected within the preset number of consecutive times shows a downward trend, then determine that the exhaust is completed.

[0244] Optionally, the switch module 901 is further configured to shut down the first pump, the first solenoid valve, the third solenoid valve, and the fourth solenoid valve;

[0245] The adjustment module 902 is also used to obtain the pressure value collected by the pressure gauge once every first preset time period; if the pressure value is greater than the first pressure threshold, the opening of the opening valve is increased by the preset opening value; if the pressure value is less than the second pressure threshold, the opening of the opening valve is reduced by the preset opening value.

[0246] Optionally, the switch module 901 is further configured to:

[0247] If the opening of the opening valve is at the maximum opening value and the pressure values ​​collected within the preset number of consecutive times show an upward trend, the third solenoid valve, the fourth solenoid valve and the first pump are opened;

[0248] If it is determined that the liquid level value identified by the liquid level sensor in the liquid storage device is greater than or equal to the first preset height, the second pump is turned on, and the immersion liquid in the liquid storage device is pumped out by the second pump, so that the immersion liquid enters the liquid cooling device along the pipeline through the liquid area inlet of the liquid cooling device.

[0249] Optionally, the regulating module 902 is further configured to increase the power of the first pump by a preset power value if the pressure values ​​collected within a preset number of consecutive times show an upward trend.

[0250] Optionally, the switch module 901 is further configured to:

[0251] If it is determined that the liquid level value identified by the liquid level sensor of the liquid cooling device is less than the second preset height, the third solenoid valve is closed and the second solenoid valve is opened to allow the immersion liquid entering from the liquid filling port to flow into the liquid storage device;

[0252] The immersion liquid in the liquid storage device is pumped out by a second pump, so that the immersion liquid enters the liquid cooling device along the pipeline through the liquid area inlet of the liquid cooling device.

[0253] Optionally, the switch module 901 is further configured to:

[0254] During the process of replenishing the liquid cooling device, a pressure value collected by the pressure gauge is obtained every first preset time period;

[0255] If the pressure values ​​collected within the preset number of consecutive times show an upward trend, the first pump, the first solenoid valve and the fourth solenoid valve are turned on;

[0256] If the change amplitude of the pressure values ​​collected within a preset number of consecutive times is smaller than a preset threshold, the first pump, the first solenoid valve and the fourth solenoid valve are closed.

[0257] Optionally, when the immersion liquid cooling system includes a first drain line and a second drain line, the adjustment module 902 is further configured to adjust the first three-way valve to connect the first drain line to the second pump, and adjust the second three-way valve to connect the second pump to the second drain line, after the device to be cooled in the liquid cooling device is turned off.

[0258] The switch module 901 is also used to open the cover of the liquid cooling device so that the immersion liquid in the liquid cooling device flows into the first drainage pipeline, and start the second pump to use the second pump to pump out the immersion liquid in the first drainage pipeline so that the immersion liquid flows out of the drainage port through the second drainage pipeline.

[0259] Optionally, when the immersion liquid cooling system includes a third drain line and a fourth drain line, the adjustment module 902 is further configured to, after the device to be cooled in the liquid cooling device is turned off, adjust the second three-way valve so that the liquid cooling device is connected to the fourth drain line; and adjust the first three-way valve so that the fourth drain line is connected to the inlet of the second pump.

[0260] The switch module 901 is also used to open the fifth solenoid valve so that the outlet of the second pump is connected to the third drain pipeline; open the cover of the liquid cooling device so that the immersion liquid in the liquid cooling device flows into the fourth drain pipeline; and start the second pump to use the second pump to pump out the immersion liquid in the fourth drain pipeline so that the immersion liquid flows out of the drain port through the third drain pipeline.

[0261] Corresponding to the above method embodiment, the embodiment of the present application further provides a control device, which is located in the liquid cooling device of the immersion liquid cooling system. As shown in FIG10 , the control device includes:

[0262] Processor 1001; transceiver 1004; machine-readable storage medium 1002, machine-readable storage medium 1002 storing machine-executable instructions that can be executed by the processor; the machine-executable instructions prompt the processor 1001 to perform the following steps:

[0263] When the device to be cooled in the liquid cooling device is started, the first pump, the first solenoid valve, the third solenoid valve, and the fourth solenoid valve are opened, and the second solenoid valve is closed, so that the first pump draws out the air and immersion liquid vapor in the liquid cooling device and allows the air and immersion liquid vapor to enter the first condenser. The immersion liquid condensed by the first condenser flows into the liquid storage device through the third solenoid valve, and the air is discharged through the first solenoid valve and the exhaust port.

[0264] Adjusting the first three-way valve to allow communication between the second pump and the liquid storage device;

[0265] Adjust the second three-way valve to connect the liquid area inlet of the liquid cooling device to the second pump;

[0266] Adjust the opening of the opening valve to adjust the pressure inside the liquid cooling device until exhaust is completed.

[0267] Optionally, the machine executable instructions further cause the processor 1001 to perform the following steps:

[0268] Obtaining a pressure value collected by the pressure gauge once every first preset time period;

[0269] If the pressure values ​​collected within the preset number of consecutive times show an upward trend, the opening of the opening valve is reduced by the preset opening value;

[0270] After a second preset time, closing the first pump, the first solenoid valve, the third solenoid valve, and the fourth solenoid valve, and reopening the first pump, the first solenoid valve, the third solenoid valve, and the fourth solenoid valve;

[0271] Return to the step of obtaining the pressure value collected by the pressure gauge every first preset time period until the pressure value collected within the preset number of consecutive times shows a downward trend, then determine that the exhaust is completed.

[0272] Optionally, the machine executable instructions further cause the processor 1001 to perform the following steps:

[0273] Close the first pump, the first solenoid valve, the third solenoid valve, and the fourth solenoid valve;

[0274] Obtaining a pressure value collected by the pressure gauge once every first preset time period;

[0275] If the pressure value is greater than the first pressure threshold, the opening of the opening valve is increased by a preset opening value;

[0276] If the pressure value is less than the second pressure threshold, the opening of the opening valve is reduced by a preset opening value.

[0277] Optionally, the machine executable instructions further cause the processor 1001 to perform the following steps:

[0278] If the opening of the opening valve is at the maximum opening value and the pressure values ​​collected within the preset number of consecutive times show an upward trend, the third solenoid valve, the fourth solenoid valve and the first pump are opened;

[0279] If it is determined that the liquid level value identified by the liquid level sensor in the liquid storage device is greater than or equal to the first preset height, the second pump is turned on, and the immersion liquid in the liquid storage device is pumped out by the second pump, so that the immersion liquid enters the liquid cooling device along the pipeline through the liquid area inlet of the liquid cooling device.

[0280] Optionally, the machine executable instructions further cause the processor 1001 to perform the following steps:

[0281] If the pressure values ​​collected within a preset number of consecutive times show an upward trend, the power of the first pump is increased by a preset power value.

[0282] Optionally, the machine executable instructions further cause the processor 1001 to perform the following steps:

[0283] If it is determined that the liquid level value identified by the liquid level sensor of the liquid cooling device is less than the second preset height, the third solenoid valve is closed and the second solenoid valve is opened to allow the immersion liquid entering from the liquid filling port to flow into the liquid storage device;

[0284] The immersion liquid in the liquid storage device is pumped out by a second pump, so that the immersion liquid enters the liquid cooling device along the pipeline through the liquid area inlet of the liquid cooling device.

[0285] Optionally, the machine executable instructions further cause the processor 1001 to perform the following steps:

[0286] During the process of replenishing the liquid cooling device, a pressure value collected by the pressure gauge is obtained every first preset time period;

[0287] If the pressure values ​​collected within the preset number of consecutive times show an upward trend, the first pump, the first solenoid valve and the fourth solenoid valve are turned on;

[0288] If the change amplitude of the pressure values ​​collected within a preset number of consecutive times is smaller than a preset threshold, the first pump, the first solenoid valve and the fourth solenoid valve are closed.

[0289] Optionally, when the immersion liquid cooling system includes a first drain line and a second drain line, the machine executable instructions further cause the processor 1001 to perform the following steps:

[0290] After the device to be cooled in the liquid cooling device is turned off, the first three-way valve is adjusted so that the first liquid discharge pipeline is connected to the second pump;

[0291] Adjust the second three-way valve so that the second pump is connected to the second liquid discharge pipeline;

[0292] Open the cover of the liquid cooling device to allow the immersion liquid in the liquid cooling device to flow into the first drainage pipeline, and start the second pump to pump out the immersion liquid in the first drainage pipeline using the second pump, so that the immersion liquid flows out of the drainage port through the second drainage pipeline.

[0293] Optionally, when the immersion liquid cooling system includes a third drain line and a fourth drain line, the machine executable instructions further cause the processor 1001 to perform the following steps:

[0294] After the device to be cooled in the liquid cooling device is closed, the second three-way valve is adjusted so that the liquid cooling device is connected to the fourth liquid discharge pipeline;

[0295] Adjust the first three-way valve so that the fourth liquid discharge pipeline is connected to the inlet of the second pump;

[0296] Open the fifth solenoid valve so that the outlet of the second pump is connected to the third liquid discharge pipeline;

[0297] Open the cover of the liquid cooling device to allow the immersion liquid in the liquid cooling device to flow into the fourth drainage pipeline, and start the second pump to pump out the immersion liquid in the fourth drainage pipeline using the second pump, so that the immersion liquid flows out of the drainage port through the third drainage pipeline.

[0298] As shown in FIG10 , the control device may further include a communication bus 1003. The processor 1001, the machine-readable storage medium 1002, and the transceiver 1004 communicate with each other via the communication bus 1003. The communication bus 1003 may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus. The communication bus 1003 may be divided into an address bus, a data bus, a control bus, and the like. The transceiver 1004 may be a wireless communication module that, under the control of the processor 1001, exchanges data with other devices.

[0299] The machine-readable storage medium 1002 may include random access memory (RAM) or non-volatile memory (NVM), such as at least one disk storage device. Alternatively, the machine-readable storage medium 1002 may be at least one storage device located remote from the processor.

[0300] Processor 1001 can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, and discrete hardware components.

[0301] Based on the same inventive concept, in accordance with the control method for an immersion liquid cooling system provided in the above-mentioned embodiments of the present application, the embodiments of the present application further provide a machine-readable storage medium storing machine-executable instructions executable by a processor. The machine-executable instructions cause the processor to implement any of the above-mentioned control methods for an immersion liquid cooling system.

[0302] In another embodiment provided in the present application, a computer program product including instructions is further provided, which, when executed on a computer, enables the computer to execute any of the control methods for the immersion liquid cooling system in the above embodiments.

[0303] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When software is used for implementation, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrations. The available medium can be a magnetic medium (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid-state drive (SSD)).

[0304] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0305] Each embodiment in this specification is described in a related manner. Similar portions between the embodiments can be referred to in conjunction with each other. Each embodiment focuses on the differences from other embodiments. In particular, the device embodiments are generally similar to the method embodiments, so their description is relatively simple. For related portions, refer to the description of the method embodiments.

[0306] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. An immersion liquid cooling system, characterized in that: include: Liquid cooling equipment, a first pump, a first condenser, a first solenoid valve, a second pump, a liquid storage device and a third solenoid valve; The gas zone outlet of the liquid cooling device is connected to one end of the first pump, the other end of the first pump is connected to the inlet of the first condenser, and the outlet of the first condenser is connected to the first solenoid valve; The first solenoid valve is connected to the exhaust port and is used to control the on / off state of the exhaust port; The liquid area inlet of the liquid cooling device is connected to one end of the second pump, and the other end of the second pump is connected to the liquid storage device; One end of the third solenoid valve is connected to the outlet of the first condenser, and the other end is connected to the second inlet of the liquid storage device. The third solenoid valve is used to control the on-off of the pipeline between the first condenser and the second inlet of the liquid storage device.

2. The system according to claim 1, wherein: The system also includes a second solenoid valve; The first inlet of the liquid storage device is connected to the second solenoid valve, and the second solenoid valve is connected to the liquid infusion port, and is used to control the on / off state of the liquid infusion port.

3. The system according to claim 2, characterized in that The gas zone of the liquid cooling device is provided with a second condenser, and the first condenser and the second condenser share a cooling liquid outlet and a cooling liquid inlet; An opening valve is provided at the coolant inlet, and a fourth solenoid valve is provided between the opening valve and the first condenser, and the fourth solenoid valve is used to control the on-off of the pipeline between the opening valve and the condensation pipe inlet of the first condenser; The opening valve is also connected to the condensation pipe inlet of the second condenser.

4. The system according to claim 3, characterized in that The system further comprises a first liquid discharge pipeline, a second liquid discharge pipeline, a first three-way valve and a second three-way valve; The first three-way valve is located between the second pump and the liquid storage device, and the first three-way valve is connected to the first liquid discharge pipeline; The second three-way valve is located between the liquid area inlet of the liquid cooling device and the second pump, and the second three-way valve is connected to the second liquid discharge pipeline.

5. The system according to claim 3, wherein: The system further comprises a third liquid discharge pipeline, a fourth liquid discharge pipeline, a first three-way valve, a second three-way valve and a fifth solenoid valve; The first three-way valve is located between the second pump and the liquid storage device, and the second three-way valve is located between the liquid area inlet of the liquid cooling device and the second pump; One end of the third liquid discharge pipeline is connected to the outlet of the second pump, and the other end is connected to the liquid discharge port, and the fifth solenoid valve is provided between the third liquid discharge pipeline and the second pump; One end of the fourth liquid discharge pipeline is connected to the first three-way valve, and the other end is connected to the second three-way valve.

6. The system according to any one of claims 1 to 5, characterized in that: A pressure gauge is provided between the gas zone outlet of the liquid cooling device and the first pump.

7. The system according to any one of claims 1 to 5, characterized in that: A liquid level sensor is provided in the liquid cooling device.

8. The system according to any one of claims 1 to 5, characterized in that: A liquid level sensor is arranged in the liquid storage tank.

9. The system according to claim 4 or 5, characterized in that A control device is provided in the liquid cooling device, and the control device is used to control the opening valve, the first solenoid valve, the second solenoid valve, the third solenoid valve, the fourth solenoid valve, the first pump, the second pump, the first three-way valve and the second three-way valve.

10. A control method for an immersion liquid cooling system, characterized in that: The immersion liquid cooling system is the system according to any one of claims 1 to 9, and the method is applied to a control device of a liquid cooling device, and the method comprises: When the device to be cooled in the liquid cooling device is started, the first pump, the first solenoid valve, the third solenoid valve, and the fourth solenoid valve are opened, and the second solenoid valve is closed, so that the first pump draws out the air and immersion liquid vapor in the liquid cooling device and allows the air and immersion liquid vapor to enter the first condenser. The immersion liquid condensed by the first condenser flows into the liquid storage device through the third solenoid valve, and the air is discharged through the first solenoid valve and the exhaust port. Adjusting the first three-way valve to allow communication between the second pump and the liquid storage device; adjusting the second three-way valve to allow communication between the liquid zone inlet of the liquid cooling device and the second pump; The opening of the opening valve is adjusted to adjust the pressure inside the liquid cooling device until the exhaust is completed.

11. The method according to claim 10, characterized in that The adjusting the opening of the opening valve to adjust the pressure inside the liquid cooling device until the exhaust is completed includes: Obtaining a pressure value collected by the pressure gauge once every first preset time period; If the pressure values collected within a preset number of consecutive times show an upward trend, the opening of the opening valve is reduced by a preset opening value; After a second preset time, closing the first pump, the first solenoid valve, the third solenoid valve, and the fourth solenoid valve, and reopening the first pump, the first solenoid valve, the third solenoid valve, and the fourth solenoid valve; Return to the step of obtaining the pressure value collected by the pressure gauge every first preset time period until the pressure value collected within the preset number of consecutive times shows a downward trend, then determine that the exhaust is completed.

12. The method according to claim 11, characterized in that After determining that the exhaust is completed, the method further includes: closing the first pump, the first solenoid valve, the third solenoid valve, and the fourth solenoid valve; Obtaining the pressure value collected by the pressure gauge once every first preset time period; If the pressure value is greater than a first pressure threshold, increasing the opening of the opening valve by a preset opening value; If the pressure value is less than the second pressure threshold, the opening of the opening valve is reduced by a preset opening value.

13. The method according to claim 12, characterized in that The method further comprises: If the opening of the opening valve is at the maximum opening value and the pressure values collected within a preset number of consecutive times show an upward trend, the third solenoid valve, the fourth solenoid valve and the first pump are opened; If it is determined that the liquid level value identified by the liquid level sensor in the liquid storage device is greater than or equal to a first preset height, the second pump is turned on, and the immersion liquid in the liquid storage device is pumped out by the second pump, so that the immersion liquid enters the liquid cooling device along the pipeline through the liquid area inlet of the liquid cooling device.

14. The method according to claim 13, characterized in that The method further comprises: If the pressure values collected within a preset number of consecutive times show an upward trend, the power of the first pump is increased by a preset power value.

15. The method according to any one of claims 10 to 14, characterized in that: The method further comprises: If it is determined that the liquid level value identified by the liquid level sensor of the liquid cooling device is less than a second preset height, closing the third solenoid valve and opening the second solenoid valve to allow the immersion liquid entering from the liquid filling port to flow into the liquid storage device; The immersion liquid in the liquid storage device is pumped out by the second pump, so that the immersion liquid enters the liquid cooling device along the pipeline through the liquid area inlet of the liquid cooling device.

16. The method according to claim 15, characterized in that The method further comprises: During the process of replenishing the liquid cooling device, obtaining a pressure value collected by the pressure gauge every first preset time period; If the pressure values collected within a preset number of consecutive times show an upward trend, the first pump, the first solenoid valve and the fourth solenoid valve are turned on; If the pressure value variation within the preset number of times is less than the preset threshold, the first pump and the first solenoid valve are closed. and the fourth solenoid valve.

17. The method according to any one of claims 10 to 14, characterized in that In the case where the immersion liquid cooling system includes a first drain line and a second drain line, the method further includes: After the device to be cooled in the liquid cooling device is turned off, adjusting the first three-way valve so that the first liquid discharge pipeline is connected to the second pump; adjusting the second three-way valve so that the second pump is connected to the second liquid discharge pipeline; Open the cover of the liquid cooling device so that the immersion liquid in the liquid cooling device flows into the first drainage pipeline, and start the second pump to pump out the immersion liquid in the first drainage pipeline using the second pump so that the immersion liquid flows out of the drainage port through the second drainage pipeline.

18. The method according to any one of claims 10 to 14, characterized in that: In the case where the immersion liquid cooling system includes a third drain line and a fourth drain line, the method further includes: After the device to be cooled in the liquid cooling device is turned off, adjusting the second three-way valve so that the liquid cooling device is connected to the fourth liquid drain line; adjusting the first three-way valve so that the fourth liquid discharge pipeline is connected to the inlet of the second pump; Opening the fifth solenoid valve so that the outlet of the second pump is connected to the third liquid discharge pipeline; Open the cover of the liquid cooling device so that the immersion liquid in the liquid cooling device flows into the fourth drainage pipeline, and start the second pump to pump out the immersion liquid in the fourth drainage pipeline using the second pump, so that the immersion liquid flows out of the drainage port through the third drainage pipeline.

19. A control device, characterized in that: The control device is located in the liquid cooling device of the immersion liquid cooling system according to any one of claims 1 to 9, and the control device includes: a switch module, configured to, when the device to be cooled in the liquid cooling device is started, activate the first pump, the first solenoid valve, the third solenoid valve, and the fourth solenoid valve, and close the second solenoid valve, so that the first pump draws out the air and immersion liquid vapor in the liquid cooling device and allows the air and immersion liquid vapor to enter the first condenser, the immersion liquid condensed by the first condenser flows into the liquid storage device through the third solenoid valve, and the air is discharged through the first solenoid valve and the exhaust port; The regulating module is used to regulate the first three-way valve so that the second pump and the liquid storage device are connected; regulate the second three-way valve so that the liquid area inlet of the liquid cooling device and the second pump are connected; and regulate the opening of the opening valve to adjust the pressure inside the liquid cooling device until the exhaust is completed.

20. The control device according to claim 19, characterized in that The adjustment module is specifically used to: Obtaining a pressure value collected by the pressure gauge once every first preset time period; If the pressure values collected within a preset number of consecutive times show an upward trend, the opening of the opening valve is reduced by a preset opening value; After a second preset time, closing the first pump, the first solenoid valve, the third solenoid valve, and the fourth solenoid valve, and reopening the first pump, the first solenoid valve, the third solenoid valve, and the fourth solenoid valve; Return to the step of obtaining the pressure value collected by the pressure gauge every first preset time period until the pressure value collected within the preset number of consecutive times shows a downward trend, then determine that the exhaust is completed.

21. The control device according to claim 20, characterized in that The switch module is further used to turn off the first pump, the first solenoid valve, the third solenoid valve and the fourth solenoid valve; The adjustment module is also used to obtain the pressure value collected by the pressure gauge once every first preset time period; if the pressure value is greater than the first pressure threshold, the opening of the opening valve is increased by the preset opening value; if the pressure value is less than the second pressure threshold, the opening of the opening valve is reduced by the preset opening value.

22. The control device according to claim 21, characterized in that The switch module is further used for: If the opening of the opening valve is at the maximum opening value and the pressure values collected within a preset number of consecutive times show an upward trend, the third solenoid valve, the fourth solenoid valve and the first pump are opened; If it is determined that the liquid level value identified by the liquid level sensor in the liquid storage device is greater than or equal to a first preset height, the second pump is turned on, and the immersion liquid in the liquid storage device is pumped out by the second pump, so that the immersion liquid enters the liquid cooling device along the pipeline through the liquid area inlet of the liquid cooling device.

23. The control device according to claim 22, characterized in that The regulating module is further configured to increase the power of the first pump by a preset power value if the pressure values collected within a preset number of consecutive times show an upward trend.

24. The control device according to any one of claims 19 to 23, characterized in that: The switch module is further used for: If it is determined that the liquid level value identified by the liquid level sensor of the liquid cooling device is less than a second preset height, closing the third solenoid valve and opening the second solenoid valve to allow the immersion liquid entering from the liquid filling port to flow into the liquid storage device; The immersion liquid in the liquid storage device is pumped out by the second pump, so that the immersion liquid enters the liquid cooling device along the pipeline through the liquid area inlet of the liquid cooling device.

25. The control device according to claim 24, characterized in that The switch module is further used for: During the process of replenishing the liquid cooling device, obtaining a pressure value collected by the pressure gauge every first preset time period; If the pressure values collected within a preset number of consecutive times show an upward trend, the first pump, the first solenoid valve and the fourth solenoid valve are turned on; If the change amplitude of the pressure values collected within a preset number of consecutive times is smaller than a preset threshold, the first pump, the first solenoid valve and the fourth solenoid valve are closed.

26. The control device according to any one of claims 19 to 23, characterized in that: When the immersion liquid cooling system includes a first drain pipeline and a second drain pipeline, the adjustment module is further configured to, after the device to be cooled in the liquid cooling device is turned off, adjust the first three-way valve so that the first drain pipeline is connected to the second pump; and adjust the second three-way valve so that the second pump is connected to the second drain pipeline. The switch module is further used to open the cover of the liquid cooling device so that the immersion liquid in the liquid cooling device flows into the first drainage pipeline, and to start the second pump to pump out the immersion liquid in the first drainage pipeline using the second pump so that the immersion liquid flows out of the drainage port through the second drainage pipeline.

27. The control device according to any one of claims 19 to 23, characterized in that: When the immersion liquid cooling system includes a third drain line and a fourth drain line, the adjustment module is further configured to, after the device to be dissipated heat in the liquid cooling device is turned off, adjust the second three-way valve so that the liquid cooling device is in communication with the fourth drain line; and adjust the first three-way valve so that the fourth drain line is in communication with the inlet of the second pump. The switch module is further configured to open the fifth solenoid valve so that the outlet of the second pump is connected to the third drainage pipeline; open the cover of the liquid cooling device so that the immersion liquid in the liquid cooling device flows into the fourth drainage pipeline; and open the second pump to pump out the immersion liquid in the fourth drainage pipeline using the second pump so that the immersion liquid flows out of the drainage port through the third drainage pipeline.

28. A control device, characterized in that: The control device is located in the liquid cooling device of the immersion liquid cooling system according to any one of claims 1 to 9, and the control device includes: processor; transceiver; a machine-readable storage medium storing machine-executable instructions that can be executed by the processor; The machine executable instructions cause the processor to perform the following steps: When the device to be cooled in the liquid cooling device is started, the first pump, the first solenoid valve, the third solenoid valve, and the fourth solenoid valve are opened, and the second solenoid valve is closed, so that the first pump draws out the air and immersion liquid vapor in the liquid cooling device and allows the air and immersion liquid vapor to enter the first condenser. The immersion liquid condensed by the first condenser flows into the liquid storage device through the third solenoid valve, and the air is discharged through the first solenoid valve and the exhaust port. Adjusting the first three-way valve to allow communication between the second pump and the liquid storage device; adjusting the second three-way valve to allow communication between the liquid zone inlet of the liquid cooling device and the second pump; The opening of the opening valve is adjusted to adjust the pressure inside the liquid cooling device until the exhaust is completed.

29. The control device according to claim 28, characterized in that The machine executable instructions further cause the processor to perform the following steps: Obtaining a pressure value collected by the pressure gauge once every first preset time period; If the pressure values collected within a preset number of consecutive times show an upward trend, the opening of the opening valve is reduced by a preset opening value; After a second preset time, closing the first pump, the first solenoid valve, the third solenoid valve, and the fourth solenoid valve, and reopening the first pump, the first solenoid valve, the third solenoid valve, and the fourth solenoid valve; Return to the step of obtaining the pressure value collected by the pressure gauge every first preset time period until the pressure value collected within the preset number of consecutive times shows a downward trend, then determine that the exhaust is completed.

30. The control device according to claim 29, characterized in that The machine executable instructions further cause the processor to perform the following steps: closing the first pump, the first solenoid valve, the third solenoid valve, and the fourth solenoid valve; Obtaining the pressure value collected by the pressure gauge once every first preset time period; If the pressure value is greater than a first pressure threshold, increasing the opening of the opening valve by a preset opening value; If the pressure value is less than the second pressure threshold, the opening of the opening valve is reduced by a preset opening value.

31. The control device according to claim 30, characterized in that The machine executable instructions further cause the processor to perform the following steps: If the opening of the opening valve is at the maximum opening value and the pressure values collected within a preset number of consecutive times show an upward trend, the third solenoid valve, the fourth solenoid valve and the first pump are opened; If it is determined that the liquid level value identified by the liquid level sensor in the liquid storage device is greater than or equal to a first preset height, the second pump is turned on, and the immersion liquid in the liquid storage device is pumped out by the second pump, so that the immersion liquid enters the liquid cooling device along the pipeline through the liquid area inlet of the liquid cooling device.

32. The control device according to claim 31, characterized in that The machine executable instructions further cause the processor to perform the following steps: If the pressure values collected within a preset number of consecutive times show an upward trend, the power of the first pump is increased by a preset power value.

33. The control device according to any one of claims 28 to 32, characterized in that: The machine executable instructions further cause the processor to perform the following steps: If it is determined that the liquid level value identified by the liquid level sensor of the liquid cooling device is less than a second preset height, closing the third solenoid valve and opening the second solenoid valve to allow the immersion liquid entering from the liquid filling port to flow into the liquid storage device; The immersion liquid in the liquid storage device is pumped out by the second pump, so that the immersion liquid enters the liquid cooling device along the pipeline through the liquid area inlet of the liquid cooling device.

34. The control device according to claim 33, characterized in that The machine executable instructions further cause the processor to perform the following steps: During the process of replenishing the liquid cooling device, obtaining a pressure value collected by the pressure gauge every first preset time period; If the pressure values collected within a preset number of consecutive times show an upward trend, the first pump, the first solenoid valve and the fourth solenoid valve are turned on; If the change amplitude of the pressure values collected within a preset number of consecutive times is smaller than a preset threshold, the first pump, the first solenoid valve and the fourth solenoid valve are closed.

35. The control device according to any one of claims 28 to 32, characterized in that: In the case where the immersion liquid cooling system includes a first drain line and a second drain line, the machine executable instructions further cause the processor to perform the following steps: After the device to be cooled in the liquid cooling device is turned off, adjusting the first three-way valve so that the first liquid discharge pipeline is connected to the second pump; adjusting the second three-way valve so that the second pump is connected to the second liquid discharge pipeline; Open the cover of the liquid cooling device so that the immersion liquid in the liquid cooling device flows into the first drainage pipeline, and start the second pump to pump out the immersion liquid in the first drainage pipeline using the second pump so that the immersion liquid flows out of the drainage port through the second drainage pipeline.

36. The control device according to any one of claims 28 to 32, characterized in that: In a case where the immersion liquid cooling system includes a third drain line and a fourth drain line, the machine executable instructions further cause the processor to perform the following steps: After the device to be cooled in the liquid cooling device is turned off, adjusting the second three-way valve so that the liquid cooling device is connected to the fourth liquid drain line; adjusting the first three-way valve so that the fourth liquid discharge pipeline is connected to the inlet of the second pump; Opening the fifth solenoid valve so that the outlet of the second pump is connected to the third liquid discharge pipeline; Open the cover of the liquid cooling device so that the immersion liquid in the liquid cooling device flows into the fourth drainage pipeline, and start the second pump to pump out the immersion liquid in the fourth drainage pipeline using the second pump, so that the immersion liquid flows out of the drainage port through the third drainage pipeline.

37. A machine-readable storage medium, characterized in that The device stores machine executable instructions, which, when called and executed by a processor, prompt the processor to implement the method according to any one of claims 10 to 18.

38. A computer program product, characterized in that The computer program product causes the processor to implement the method according to any one of claims 10 to 18.

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