Single-phase immersion liquid cooling system, liquid cooling method, and storage medium

1 . A single-phase immersion liquid cooling system, wherein the liquid cooling system comprises:

a liquid supply main pipe;

a liquid return main pipe;

at least one liquid cooling cabinet, wherein each liquid cooling cabinet comprises a liquid inlet and a liquid return opening, the liquid inlet of each liquid cooling cabinet is in communication with the liquid supply main pipe through a liquid supply sub-pipe of each liquid cooling cabinet, and the liquid return opening of each liquid cooling cabinet is in communication with the liquid return main pipe through a liquid return sub-pipe of each liquid cooling cabinet; and

a flow regulation unit, comprising a pressure difference detection apparatus and a flow regulation apparatus, wherein the pressure difference detection apparatus is used to detect a pressure difference between a coolant flowing into the pressure difference detection apparatus and a coolant flowing out of the pressure difference detection apparatus, and the flow regulation apparatus is used to regulate a flow of the coolant;

wherein the pressure difference detection apparatus and the flow regulation apparatus are separately in a signal connection to a control unit; and

the liquid supply sub-pipe is provided with the flow regulation unit, so that the control unit regulates, based on the pressure difference of the at least one liquid supply sub-pipe, a flow of a coolant flowing into the at least one liquid supply sub-pipe,

wherein the pressure difference detection apparatus comprises a blocking structure, a first pressure sensor arranged at a first end of the blocking structure, and a second pressure sensor arranged at a second end of the blocking structure; wherein

the blocking structure is used to provide resistance for coolant flowing, so that when the coolant flows through the blocking structure, there is a positive correlation between the pressure difference, obtained by subtracting a first detection value of the first pressure sensor from a second detection value of the second pressure sensor or subtracting the second detection value of the second pressure sensor from the first detection value of the first pressure sensor, and a flow of the coolant flowing through the blocking structure,

wherein the flow regulation apparatus comprises an electrically operated valve, wherein the electrically operated valve is in a signal connection to the control unit, and the control unit is used to dynamically regulate an opening degree of the electrically operated valve based on the pressure difference, a power unit is further arranged between the liquid supply main pipe and the liquid return main pipe, the power unit is used to supply power for coolant flowing, and the power unit is further in a signal connection to the control unit;

wherein the control unit is used to:

obtain a target pressure difference value of the at least one liquid supply sub-pipe;

monitor the opening degree of the electrically operated valve and the pressure difference of the at least one liquid supply sub-pipe;

in a case that the opening degree of the electrically operated valve is at a maximum value and the pressure difference is less than the corresponding target pressure difference value, increase the operating power of the power unit; and

in a case that the pressure difference of each of the at least one liquid supply sub-pipe reaches the corresponding target pressure difference value and opening degrees of all electrically operated valves do not reach respective maximum values, decrease the operating power of the power unit.

2 . The liquid cooling system according to claim 1 , wherein the liquid return sub-pipe is provided with the flow regulation unit, so that the control unit regulates, based on the pressure difference of the at least one liquid return sub-pipe, a flow of a coolant flowing out of the at least one liquid return sub-pipe.

3 . The liquid cooling system according to claim 1 , wherein the liquid cooling system comprises a plurality of liquid cooling cabinets, the plurality of liquid cooling cabinets are connected in parallel between the liquid supply main pipe and the liquid return main pipe.

4 . The liquid cooling system according to claim 1 , wherein the liquid cooling cabinet comprises an electronic device area and a liquid return groove, the liquid inlet being arranged at the electronic device area, and the liquid return opening being arranged at the liquid return groove; and

the liquid cooling system further comprises:

a balance pipe, wherein the balance pipe is in communication with the liquid return grooves of the plurality of liquid cooling cabinets to balance liquid levels in the plurality of liquid return grooves.

5 . The liquid cooling system according to claim 1 wherein the control unit is used to:

in a case that the pressure difference of one liquid supply sub-pipe is less than the target pressure difference value of the liquid supply sub-pipe, control the opening degree of the electrically operated valve corresponding to the liquid supply sub-pipe to increase; and

in a case that the pressure difference of one liquid supply sub-pipe is greater than the target pressure difference value of the liquid supply sub-pipe, control the opening degree of the electrically operated valve corresponding to the liquid supply sub-pipe to decrease.

6 . The liquid cooling system according to claim 1 , wherein a heat exchange unit is further arranged between the liquid supply main pipe and the liquid return main pipe, wherein the heat exchange unit is used to cool the coolant.

7 . A liquid cooling method, wherein the liquid cooling method is applied to the liquid cooling system according to any one of claims 1 to 4 and 5 to 6 , and the liquid cooling method comprises:

dynamically regulating an opening degree of a flow regulation unit of each of the at least one liquid supply sub-pipe based on a condition of comparison between the target pressure difference value and the pressure difference of the at least one liquid supply sub-pipe.

8 . The liquid cooling method according to claim 7 , wherein the step of dynamically regulating an opening degree of a flow regulation unit of each of the at least one liquid supply sub-pipe based on a condition of comparison between the target pressure difference value and the pressure difference of the at least one liquid supply sub-pipe comprises:

in a case that the pressure difference of one liquid supply sub-pipe is less than the target pressure difference value of the liquid supply sub-pipe, controlling the opening degree of the flow regulation unit corresponding to the liquid supply sub-pipe to increase; and

in a case that the pressure difference of one liquid supply sub-pipe is greater than the target pressure difference value of the liquid supply sub-pipe, controlling the opening degree of the flow regulation unit corresponding to the liquid supply sub-pipe to decrease.

9 . The liquid cooling method according to claim 8 , wherein a heat exchange unit is further arranged in the liquid cooling system, wherein the heat exchange unit is used to cool a coolant.

10 . A non-transitory computer-readable storage medium, comprising program instructions, wherein the program instructions, when being executed by a control unit, enable the control unit to perform the method according to claim 7 .