Cooling micromodule device, data center, liquid cooling system and control method thereof

Abstract

The invention relates to a cooling micro-module device, a data center, a liquid cooling system and a control method thereof. The liquid cooling system comprises a plurality of two-phase cold plates, an electro-hydraulic integrated distribution module connected with the two-phase cold plates, and a liquid cooling heat exchange module connected with the electro-hydraulic integrated distribution module. Wherein the electro-hydraulic integrated distribution module comprises an electric quantity distribution unit, a cooling capacity distribution unit and a control unit, and the electric quantity distribution unit is provided with an electric quantity distribution trunk which is electrically connected with to-be-cooled equipment of each node; the cooling capacity distribution unit is provided with a liquid separation and collection assembly connected with the two-phase cold plates and cooling capacity self-adjusting pump assemblies which are arranged on branches of the liquid separation and collection assembly and correspond to the two-phase cold plates; the control unit is electrically connected with the electric quantity distribution unit and the cooling capacity self-adjusting pump assembly, and the control unit collects power consumption information corresponding to the to-be-cooled equipment of each node through the electric quantity distribution unit; and / or output electric quantity information of each electric quantity distribution trunk in the electric quantity distribution unit.

Description

Technical Field

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

[0002] Immersion liquid cooling technology is mainly based on immersion phase change liquid cooling technology. This technology is to immerse all IT equipment in a cooling medium. The cooling medium absorbs the heat of heat-generating components such as chips, memory, and power supplies, then heats up and finally vaporizes, taking away the heat of the heat-generating components in the form of phase change heat transfer. This technology mainly uses the latent heat of the phase change of the cooling medium to take away the heat of the heat-generating components. It has high heat exchange capacity and good cooling effect. In related technologies, a liquid cooling system is usually used for cooling. However, the flow distribution of the liquid cooling system is uncontrollable, resulting in uneven cooling effect between multiple two-phase cold plates in the liquid cooling system. Summary of the invention

[0003] Based on this, it is necessary to provide a cooling micromodule device, a data center, a liquid cooling system and a control method thereof to address the problem of flow distribution.

[0004] A liquid cooling system, comprising: a plurality of two-phase cold plates, an electro-liquid integrated distribution module respectively connected to the two-phase cold plates, and a liquid cooling heat exchange module connected to the electro-liquid integrated distribution module; wherein the electro-liquid integrated distribution module comprises:

[0005] The power distribution unit is provided with a power distribution trunk line electrically connected to the equipment to be cooled at each node;

[0006] A cold capacity distribution unit is provided with a distribution liquid assembly connected to the two-phase cold plate, and a cold capacity self-regulating pump assembly provided on each branch of the distribution liquid assembly and corresponding to the two-phase cold plate;

[0007] The control unit is electrically connected to the power distribution unit and the cooling self-regulating pump assembly, respectively. The control unit collects the power consumption information corresponding to the equipment to be cooled at each node through the power distribution unit; and / or the output power information of each power distribution trunk in the power distribution unit; and adjusts the working frequency of the cooling self-regulating pump assembly corresponding to each node according to the power consumption information and / or the output power information.

[0008] In one of the embodiments, the power distribution unit, the cooling distribution unit and the control unit in the electric-liquid integrated distribution module are configured as an integrated structure.

[0009] In one embodiment, the liquid separation and collection assembly is provided with a liquid separation pipeline and a liquid collection pipeline, wherein;

[0010] The liquid separation pipeline includes a liquid separation pipeline body, and a plurality of first liquid separation branches arranged on the liquid separation pipeline body and correspondingly connected to the two-phase cold plates of each node;

[0011] The cooling capacity self-regulating pump assembly includes a first cooling capacity self-regulating pump, and the first cooling capacity self-regulating pump is arranged on the side of the first liquid separation branch connected to the liquid separation pipeline body, wherein the first cooling capacity self-regulating pump is electrically connected to the control unit.

[0012] In one embodiment, the liquid separation pipeline further includes a plurality of second liquid separation branches which are arranged on the liquid separation pipeline body and are correspondingly connected to the two-phase cold plate at each node;

[0013] The cooling capacity self-regulating pump assembly includes a second cooling capacity self-regulating pump, and the second cooling capacity self-regulating pump is arranged on the side of the second liquid separation branch connected to the liquid separation pipeline body, wherein the second cooling capacity self-regulating pump is electrically connected to the control unit.

[0014] In one embodiment, the electro-hydraulic integrated distribution module also includes a first flow meter electrically connected to the control unit, and the first flow meter is arranged on a liquid distribution pipeline connecting the liquid outlet end of the cooling self-regulating pump assembly and the liquid inlet end of the two-phase cold plate at each node, or is arranged as an integral structure with the cooling self-regulating pump assembly; the first flow meter is used to detect the liquid inlet flow of the two-phase cold plate at each node and transmit the data to the control unit.

[0015] In one of the embodiments, the liquid collecting pipeline includes a liquid collecting pipeline main body, a plurality of first fluid pipelines arranged on the liquid collecting pipeline main body and correspondingly connected to the two-phase cold plates of each node, a fluid separation part arranged in the liquid collecting pipeline main body, and at least two fluid outlets connected to the liquid cooling heat exchange module.

[0016] In one embodiment, the liquid cooling system also includes a second flow meter electrically connected to the control unit, and the second flow meter is arranged between the fluid outlet and the liquid cooling heat exchange module, and is used to detect the discharge flow of the two-phase cold plate and transmit the data to the control unit.

[0017] The present application also provides a control method for a liquid cooling system using any one of the above, the control method for the liquid cooling system comprising:

[0018] The control unit is electrically connected to the power distribution unit and the cold capacity self-regulating pump assembly of the cold capacity distribution unit respectively;

[0019] The power distribution trunk of the power distribution unit is electrically connected to the device to be cooled, and the power distribution unit is used to collect the power consumption information corresponding to the device to be cooled at each node; and / or the output power information of each power distribution trunk in the power distribution unit is transmitted to the control unit;

[0020] The control unit adjusts the operating frequency of the cold capacity self-regulating pump assembly according to the power consumption information and / or the output power information transmitted by the power distribution unit.

[0021] In one embodiment, the control unit calculates a correction coefficient according to a correction formula to correct the operating frequency of the cooling capacity self-regulating pump assembly;

[0022] The correction formula is: K=P / P 总 , where K is the correction coefficient, P is the power of the single-layer two-phase cold plate, P 总 is the sum of the powers of the multiple two-phase cold plates of the liquid cooling system.

[0023] In one embodiment, the control unit calculates a correction coefficient according to a correction formula to correct the operating frequency of the cooling capacity self-regulating pump assembly;

[0024] The correction formula is: K=K H *P / P 总 , where K is the correction factor, P is the power of the two-phase cold plate of a single layer, P 总 is the total power of the two-phase cold plates of the liquid cooling system, K H is the weight coefficient, K H The limitation is made according to the relative position between the single-layer two-phase cold plate and the water inlet of the liquid separation pipeline of the liquid separation and collection assembly.

[0025] In one of the embodiments, a first flow meter is installed on the liquid distribution pipeline connecting the liquid outlet of the cold capacity self-regulating pump assembly and the liquid inlet of the two-phase cold plate at each node, or the first flow meter is integrated on the cold capacity self-regulating pump assembly;

[0026] The first flow meter is electrically connected to the control unit, and is used to detect the actual liquid inlet flow of the two-phase cold plate and transmit the actual liquid inlet flow to the control unit. The control unit adjusts the working frequency of the corresponding cold capacity self-regulating pump assembly according to the actual liquid inlet flow.

[0027] In one embodiment, the control unit is provided with a preset flow value, and the control unit compares the actual liquid inlet flow rate with the preset flow value. If the preset flow value is greater than the actual liquid inlet flow rate, the control unit increases the operating frequency of the cooling self-regulating pump assembly. If the preset flow value is less than the actual liquid inlet flow rate, the control unit reduces the operating frequency of the cooling self-regulating pump assembly.

[0028] In one of the embodiments, a second flow meter is installed between the fluid outlet of the liquid collecting pipeline and the liquid-cooled heat exchange module, and the second flow meter is electrically connected to the control unit. The second flow meter is used to detect the actual discharge flow of the two-phase cold plate and transmit the actual discharge flow to the control unit. The control unit adjusts the operating frequency of the cooling capacity self-regulating pump assembly according to the actual discharge flow.

[0029] The present application also provides a cooling micromodule device, comprising any of the liquid cooling systems described above.

[0030] The present application also provides a data center, comprising any of the liquid cooling systems described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram of a liquid cooling system provided in an embodiment of the present application.

[0032] Figure 2 A schematic diagram of the structure of the liquid cooling system provided in an embodiment of the present application.

[0033] Figure 3 A flow chart of a control method for a liquid cooling system provided in an embodiment of the present application.

[0034] In the figure:

[0035] 100, liquid dispensing pipeline; 110, liquid dispensing pipeline body; 111, first control valve; 120, first liquid dispensing branch; 121, first non-return valve; 130, second liquid dispensing branch; 131, second non-return valve;

[0036] 200, two-phase cold plate;

[0037] 300, liquid collecting pipeline; 310, liquid collecting pipeline body; 311, second control valve; 320, first fluid pipeline;

[0038] 400. control unit;

[0039] 500, power distribution trunk line; 510, output branch line; 520, power distribution unit communication line;

[0040] 600, a first cooling capacity self-regulating pump; 610, a cooling capacity self-regulating pump communication line;

[0041] 700, second cooling capacity self-regulating pump;

[0042] 800. Equipment to be cooled. DETAILED DESCRIPTION

[0043] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0044] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0045] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0046] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0047] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0048] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0049] The present application provides a liquid cooling system, such as Figure 1 and Figure 2 As shown, the liquid cooling system includes: a plurality of two-phase cold plates 200, an electro-liquid integrated distribution module respectively connected to the two-phase cold plates 200, and a liquid cooling heat exchange module connected to the electro-liquid integrated distribution module; wherein the electro-liquid integrated distribution module includes: an electricity distribution unit, a cold distribution unit and a control unit 400, the electricity distribution unit is provided with an electricity distribution trunk 500 electrically connected to the equipment to be cooled 800 at each node; the cold distribution unit is provided with a liquid distribution assembly connected to the two-phase cold plate 200, and a cold self-regulating pump assembly arranged on each branch of the liquid distribution assembly and corresponding to the two-phase cold plate 200; the control unit 400 is electrically connected to the electricity distribution unit and the cold self-regulating pump assembly, respectively, and the control unit 400 collects the power consumption information corresponding to the equipment to be cooled 800 at each node through the electricity distribution unit; and / or the output power information of each electricity distribution trunk 500 in the electricity distribution unit; and adjusts the working frequency of the cold self-regulating pump assembly corresponding to each node according to the power consumption information and / or the output power information.

[0050] In the above-mentioned liquid cooling system, the electric-liquid integrated distribution module is connected to the two-phase cold plate 200, and the electric-liquid integrated distribution module is used to distribute the power and coolant flow of the two-phase cold plate 200. The two-phase cold plate 200, the electric-liquid integrated distribution module and the liquid cooling heat exchange module are connected to cool the coolant discharged from the two-phase cold plate 200. The electric-liquid integrated distribution module includes an electric power distribution unit, a cold capacity distribution unit and a control unit 400. The electric power distribution unit is electrically connected to the equipment to be cooled 800 at each node through the electric power distribution trunk 500, so that the equipment to be cooled 800 is powered. The electric power distribution unit is electrically connected to the control unit 400, and the electric power distribution unit can collect the power consumption information corresponding to the equipment to be cooled 800 at each node, and / or the output power information of each electric power distribution trunk 500 in the electric power distribution unit can be transmitted to the control unit 400. The liquid distribution assembly of the cold capacity distribution unit is connected to the two-phase cold plate 200, so as to realize the liquid collection and liquid separation of the two-phase cold plate 200. A self-regulating cooling pump assembly is provided on each branch of the liquid distribution assembly. The self-regulating cooling pump assembly corresponds to the two-phase cold plate 200 and is connected to the control unit 400. The control unit 400 adjusts the operating frequency of the self-regulating cooling pump assembly according to the power consumption information and / or the output power information, thereby adjusting the liquid inlet amount of the two-phase cold plate 200, thereby adjusting the cooling effect of the two-phase cold plate 200.

[0051] Furthermore, if Figure 1 and Figure 2 As shown, the control unit 400 is electrically connected to the power distribution trunk line 500 via the power distribution unit communication line 520 .

[0052] Specifically, Figure 1 and Figure 2 As shown, the power distribution unit includes a plurality of output branches 510 , and the plurality of output branches 510 correspond to a plurality of devices to be cooled 800 one by one. The power distribution trunk 500 is connected to the corresponding devices to be cooled 800 through the output branches 510 .

[0053] In this embodiment, if Figure 1 and Figure 2 As shown, the power distribution unit, the cooling distribution unit and the control unit 400 in the electric-liquid integrated distribution module are set as an integrated structure. The power distribution unit, the cooling distribution unit and the control unit 400 are set as an integrated structure, which not only saves installation space, but also has a highly integrated device, which is easy to operate and maintain.

[0054] In other embodiments, the power distribution unit, the cooling distribution unit and the control unit 400 in the electric-liquid integrated distribution module can be separately arranged, or any combination of the two can be arranged. The specific assembly method is selected according to the actual operation requirements.

[0055] In some embodiments, Figure 1 and Figure 2 As shown, the liquid separation and collection assembly is provided with a liquid separation pipeline 100 and a liquid collection pipeline 300, wherein the liquid separation pipeline 100 includes a liquid separation pipeline body 110, and a plurality of first liquid separation branches 120 arranged on the liquid separation pipeline body 110 and correspondingly connected to the two-phase cold plate 200 at each node; the cold capacity self-regulating pump assembly includes a first cold capacity self-regulating pump 600, and a first cold capacity self-regulating pump 600 is arranged on one side of the first liquid separation branch 120 connected to the liquid separation pipeline body 110, wherein the first cold capacity self-regulating pump 600 is electrically connected to the control unit 400. The plurality of first liquid separation branches 120 are correspondingly connected to the two-phase cold plate 200 at each node, and the liquid cooling medium can flow into the two-phase cold plate 200 through the liquid separation pipeline body 110 and the first liquid separation branch 120 in sequence. A first cooling capacity self-regulating pump 600 is provided on the first liquid distribution branch 120 corresponding to the multiple two-phase cold plates 200, and the multiple first cooling capacity self-regulating pumps 600 are connected to the control unit 400. The control unit 400 determines the power of each two-phase cold plate 200 according to the power consumption information and / or output power information of the cooling equipment 800 corresponding to each two-phase cold plate 200, and then controls the operating frequency of the first cooling capacity self-regulating pump 600 corresponding to each two-phase cold plate 200, and adjusts the liquid inlet amount of the corresponding two-phase cold plate 200.

[0056] Specifically, Figure 1 and Figure 2 As shown, a first one-way valve 121 is provided on the first liquid separation branch 120 connecting the liquid outlet of the first cooling capacity self-regulating pump 600 and the liquid inlet end of the two-phase cold plate 200. The first one-way valve 121 is used to limit the flow direction of the liquid cooling medium in the first liquid separation branch 120 so that it can only flow from the first cooling capacity self-regulating pump 600 to the corresponding two-phase cold plate 200.

[0057] In some embodiments, Figure 1 and Figure 2 As shown, the liquid separation pipeline 100 also includes a plurality of second liquid separation branches 130 arranged on the liquid separation pipeline body 110 and correspondingly connected to the two-phase cold plate 200 at each node; the cold capacity self-regulating pump assembly includes a second cold capacity self-regulating pump 700, and a second cold capacity self-regulating pump 700 is arranged on one side of the second liquid separation branch 130 connected to the liquid separation pipeline body 110, wherein the second cold capacity self-regulating pump 700 is electrically connected to the control unit 400. By setting the second liquid separation branch 130, the second liquid separation branch 130 is correspondingly connected to the two-phase cold plate 200 at each node, and the second cold capacity self-regulating pump 700 is arranged on the second liquid separation branch 130, and the first cold capacity self-regulating pump 600 or the second cold capacity self-regulating pump 700 can be selected to work.

[0058] For example, when the liquid cooling system is in a normal working state, the liquid cooling medium can flow into the two-phase cold plate 200 through the liquid separation pipeline body 110 and the first liquid separation branch 120 in sequence. At this time, the first cooling capacity self-regulating pump 600 is working. When the first cooling capacity self-regulating pump 600 is damaged, that is, the liquid cooling system is in an abnormal alarm state, the second liquid separation branch 130 and the second cooling capacity self-regulating pump 700 can be used to perform the liquid separation work.

[0059] Specifically, Figure 1 and Figure 2 As shown, a second one-way valve 131 is provided on the second liquid separation branch 130 connecting the liquid outlet of the second cooling capacity self-regulating pump 700 and the liquid inlet end of the two-phase cold plate 200. The second one-way valve 131 is used to limit the flow direction of the liquid cooling medium in the second liquid separation branch 130 so that it can only flow from the second cooling capacity self-regulating pump 700 to the corresponding two-phase cold plate 200.

[0060] Specifically, Figure 1 and Figure 2 As shown, a first control valve 111 is provided on the liquid separation pipeline body 110 , and the first control valve 111 is used to control the opening or closing of the liquid separation pipeline body 110 .

[0061] Specifically, Figure 1 and Figure 2 As shown, the control unit 400 is electrically connected to the cold capacity self-regulating pump assembly through the cold capacity self-regulating pump communication line 610. That is, the control unit 400 is electrically connected to the first cold capacity self-regulating pump 600 and the second cold capacity self-regulating pump 700 through the cold capacity self-regulating pump communication line 610.

[0062] Furthermore, the electro-hydraulic integrated distribution module also includes a first flowmeter electrically connected to the control unit 400, the first flowmeter is arranged on the liquid distribution pipeline 100 connecting the liquid outlet of the cooling capacity self-regulating pump assembly and the liquid inlet of the two-phase cold plate 200 of each node, or is arranged as an integral structure with the cooling capacity self-regulating pump assembly; the first flowmeter is used to detect the liquid inlet flow of the two-phase cold plate 200 of each node, and transmit the data to the control unit 400. By setting the first flowmeter to detect the actual liquid inlet flow of the two-phase cold plate 200, the first flowmeter transmits the actual liquid inlet flow to the control unit 400, and the control unit 400 can correct the working frequency of the cooling capacity self-regulating pump assembly according to the actual liquid inlet flow.

[0063] Specifically, when the preset flow value is set for the control unit 400, the control unit 400 compares the actual liquid inflow flow rate with the preset flow rate value. If the preset flow rate value is greater than the actual liquid inflow flow rate, it is determined that the actual liquid inflow flow rate is small and does not meet the demand. At this time, the control unit 400 increases the operating frequency of the cold capacity self-regulating pump assembly and increases the liquid inflow of the two-phase cold plate 200. If the preset flow rate value is less than the actual liquid inflow flow rate, it is determined that the actual liquid inflow flow rate is large and exceeds the demand. At this time, the control unit 400 reduces the operating frequency of the cold capacity self-regulating pump assembly and reduces the liquid inflow of the two-phase cold plate 200.

[0064] In a specific embodiment, a first flow meter is provided on the first liquid distribution branch 120 connecting the liquid outlet of the first cooling capacity self-regulating pump 600 and the liquid inlet of each node two-phase cold plate 200 .

[0065] In a specific embodiment, a first flow meter is provided on the second liquid distribution branch 130 connecting the liquid outlet of the second cooling capacity self-regulating pump 700 and the liquid inlet of each node two-phase cold plate 200 .

[0066] In a specific embodiment, a first flow meter is provided on a first liquid separation branch 120 connecting the liquid outlet end of the first cooling self-regulating pump 600 and the liquid inlet end of the two-phase cold plate 200 at each node, and on a second liquid separation branch 130 connecting the liquid outlet end of the second cooling self-regulating pump 700 and the liquid inlet end of the two-phase cold plate 200 at each node.

[0067] In a specific embodiment, the first flow meter and the first self-regulating cooling pump 600 and / or the second self-regulating cooling pump 700 are integrated into one, and the liquid output of the first self-regulating cooling pump 600 / the second self-regulating cooling pump 700 is detected by the first flow meter, thereby detecting the liquid inlet of the two-phase cold plate 200.

[0068] Furthermore, if Figure 1 and Figure 2 As shown, the liquid collecting pipeline 300 includes a liquid collecting pipeline body 310, a plurality of first fluid pipelines 320 arranged on the liquid collecting pipeline body 310 and correspondingly connected to the two-phase cold plate 200 of each node, a fluid separation part arranged in the liquid collecting pipeline body 310, and at least two fluid outlets connected to the liquid cooling heat exchange module. The plurality of first fluid pipelines 320 and the liquid outlets of the plurality of two-phase cold plates 200 of each node are connected one by one, and the ends of the plurality of first fluid pipelines 320 away from the two-phase cold plate 200 are all connected to the liquid collecting pipeline body 310, and the gas-liquid two-phase cooling medium discharged from the two-phase cold plate 200 can pass through the first fluid pipeline 320 and the liquid collecting pipeline body 310 in sequence. A fluid separation part is arranged in the liquid collecting pipeline body 310, and the gas-liquid two-phase cooling medium entering the liquid collecting pipeline body 310 is separated in the liquid collecting pipeline body 310, and flows into the liquid cooling heat exchange module through different fluid outlets.

[0069] Specifically, Figure 1 and Figure 2 As shown, a second control valve 311 is provided on the liquid collecting pipeline body 310 , and the second control valve 311 is used to control the opening or closing of the liquid collecting pipeline body 310 .

[0070] Furthermore, the liquid cooling system also includes a second flow meter electrically connected to the control unit 400, and the second flow meter is arranged between the fluid outlet and the liquid cooling heat exchange module, and is used to detect the discharge flow of the two-phase cold plate 200, and transmit the data to the control unit 400. By setting the second flow meter to detect the actual discharge flow of the two-phase cold plate 200, the second flow meter transmits the actual discharge flow to the control unit 400, and the control unit 400 can correct the working frequency of the cooling capacity self-regulating pump assembly according to the actual discharge flow.

[0071] In a specific embodiment, the second flow meter is disposed between the fluid outlet for discharging the gaseous cooling medium and the liquid-cooled heat exchange module, and the second flow meter is used to detect the flow rate of the discharged gaseous cooling medium.

[0072] In a specific embodiment, the second flow meter is disposed between the fluid outlet for discharging the liquid cooling medium and the liquid cooling heat exchange module, and the second flow meter is used to detect the flow rate of the discharged liquid cooling medium.

[0073] In a specific embodiment, the second flow meter is not only arranged between the fluid outlet for discharging the gaseous cooling medium and the liquid-cooled heat exchange module, but also arranged between the fluid outlet for discharging the liquid cooling medium and the liquid-cooled heat exchange module, so as to detect the flow rate of the discharged gaseous cooling medium and the flow rate of the discharged liquid cooling medium.

[0074] The present application also provides a control method for a liquid cooling system using any of the above items, such as Figures 1 to 3 As shown, the control method of the liquid cooling system includes:

[0075] The control unit 400 is electrically connected to the first cold capacity self-regulating pump 600 of the power distribution unit and the cold capacity distribution unit respectively;

[0076] The power distribution trunk 500 of the power distribution unit is electrically connected to the device to be cooled 800, and the power distribution unit is used to collect power consumption information corresponding to the device to be cooled 800 at each node; and / or the output power information of each power distribution trunk 500 in the power distribution unit is transmitted to the control unit 400;

[0077] The control unit 400 adjusts the operating frequency of the cooling capacity self-regulating pump assembly according to the power consumption information and / or output power information transmitted by the power distribution unit.

[0078] The control method of the above-mentioned liquid cooling system electrically connects the control unit 400 to the power distribution unit and the cold capacity self-regulating pump assembly of the cold capacity distribution unit respectively, and electrically connects the power distribution trunk line 500 to the device to be cooled 800. The power distribution unit can transmit the power consumption information of the device to be cooled 800 to the control unit 400. The control unit 400 determines the power of the two-phase cold plate 200 according to the power consumption information and / or output power information of the device to be cooled 800, and then controls the working frequency of the cold capacity self-regulating pump assembly corresponding to the two-phase cold plate 200, and then adjusts the liquid inlet amount of the two-phase cold plate 200, thereby adjusting the cooling effect of the two-phase cold plate 200.

[0079] Furthermore, in some embodiments, Figure 3 As shown, the control unit 400 calculates the correction coefficient according to the correction formula to correct the working frequency of the cooling capacity self-regulating pump assembly; the correction formula is: K=P / P 总 , where K is the correction factor, P is the power of the single-layer two-phase cold plate 200, and P 总 The correction coefficient K is the sum of the powers of the multiple two-phase cold plates 200 of the liquid cooling system. By using the correction formula to calculate the correction coefficient K, when the control unit 400 determines the power of the two-phase cold plate 200 according to the power consumption information of the device to be cooled 800, and then controls the working frequency of the cold capacity self-regulating pump assembly corresponding to each two-phase cold plate 200, the correction coefficient K is used to correct the working frequency of the cold capacity self-regulating pump assembly, thereby improving the adjustment precision and accuracy.

[0080] Specifically, Figure 3 As shown, the control unit 400 calculates the correction coefficient according to the correction formula to correct the working frequency of the first cooling capacity self-regulating pump 600; the correction formula is: K=K H *P / P 总 , where K is the correction coefficient, P is the power of a single-layer two-phase cold plate 200, Ptotal is the total power of multiple two-phase cold plates 200 of the liquid cooling system, and K H is a weight coefficient, which is defined according to the relative position between the two-phase cold plate 200 of each layer and the water inlet of the liquid separation pipeline 100 of the liquid separation and collection assembly.

[0081] Considering the height difference of the multi-layer two-phase cold plate 200 of the liquid cooling system, the weight coefficient K is derived H , weight coefficient K H The correction formula is K=K H *P / P 总 , further improving the correction accuracy.

[0082] More specifically, the weight coefficient K HIt is positively correlated with the level of the two-phase cold plate 200. For example, when the distance H between some two-phase cold plates 200 in the multi-layer two-phase cold plate 200 and the water inlet of the liquid separation pipeline 100 is within the range of H1, the weight coefficient K H is 1.1, and the distance H between some of the two-phase cold plates 200 in the multi-layer two-phase cold plate 200 and the water inlet of the liquid separation pipeline 100 is greater than H1 and less than H2, then the weight coefficient K H is 1.3, and the distance H between some of the two-phase cold plates 200 and the water inlet of the liquid separation pipeline 100 in the multi-layer two-phase cold plate 200 is greater than H3, then the weight coefficient K H is 1.5.

[0083] It should be noted that P in the correction formula refers to the power of a single-layer two-phase cold plate 200, and the liquid cooling system includes multiple layers of two-phase cold plates 200 arranged at intervals. Each layer of two-phase cold plate 200 corresponds to a correction coefficient. When it is necessary to correct the operating frequency of the corresponding level of the cold capacity self-regulating pump assembly, the control unit 400 needs to calculate the correction coefficient of the corresponding level.

[0084] It should be noted that the cooling capacity self-regulating pump assembly includes a first cooling capacity self-regulating pump 600 and a second cooling capacity self-regulating pump 700. When the liquid cooling system uses the first cooling capacity self-regulating pump 600 and the first liquid separation branch 120, the corresponding correction is the operating frequency of the first cooling capacity self-regulating pump 600. When the liquid cooling system uses the second cooling capacity self-regulating pump 700 and the second liquid separation branch 130, the corresponding correction is the operating frequency of the second cooling capacity self-regulating pump 700.

[0085] Furthermore, in some embodiments, Figure 3 As shown, a first flowmeter is installed on the liquid distribution pipeline 100 connecting the liquid outlet of the cold capacity self-regulating pump assembly and the liquid inlet of each node two-phase cold plate 200, or the first flowmeter is integrated on the cold capacity self-regulating pump assembly; the first flowmeter is electrically connected to the control unit 400, and the first flowmeter is used to detect the actual liquid inlet flow of the two-phase cold plate 200 and transmit the actual liquid inlet flow to the control unit 400, and the control unit 400 adjusts the working frequency of the corresponding cold capacity self-regulating pump assembly according to the actual liquid inlet flow. The control unit 400 obtains the power consumption information of the device to be cooled 800 through the power distribution dry unit, and then obtains the power of the single-layer two-phase cold plate 200, determines the working frequency of the first cold capacity self-regulating pump 600 / the second cold capacity self-regulating pump 700 of the cold capacity self-regulating pump assembly, and then obtains the actual liquid inlet flow of the corresponding two-phase cold plate 200 through the first flowmeter, and corrects the working frequency of the first cold capacity self-regulating pump 600 / the second cold capacity self-regulating pump 700 according to the actual liquid inlet flow.

[0086] Specifically, Figure 3As shown, the control unit 400 is provided with a preset flow value, and the control unit 400 compares the actual liquid inlet flow rate with the preset flow value. If the preset flow value is greater than the actual liquid inlet flow rate, it is determined that the actual liquid inlet flow rate is small and does not meet the demand. At this time, the control unit 400 increases the operating frequency of the first cold capacity self-regulating pump 600 / the second cold capacity self-regulating pump 700 of the cold capacity self-regulating pump assembly, thereby increasing the liquid inlet amount of the two-phase cold plate 200. If the preset flow value is less than the actual liquid inlet flow rate, it is determined that the actual liquid inlet flow rate is large and exceeds the demand. At this time, the control unit 400 reduces the operating frequency of the first cold capacity self-regulating pump 600 / the second cold capacity self-regulating pump 700 of the cold capacity self-regulating pump assembly to reduce the liquid inlet amount of the two-phase cold plate 200.

[0087] Furthermore, in some embodiments, a second flow meter is installed between the fluid outlet of the liquid collecting pipeline 300 and the liquid cooling heat exchange module, and the second flow meter is electrically connected to the control unit 400. The second flow meter is used to detect the actual discharge flow of the two-phase cold plate 200, and transmit the actual discharge flow to the control unit 400. The control unit 400 adjusts the working frequency of the cold capacity self-regulating pump assembly according to the actual discharge flow. The control unit 400 obtains the power consumption information of the device to be cooled 800 through the power distribution trunk 500, and then obtains the power of the single-layer two-phase cold plate 200. After determining the working frequency of the first cold capacity self-regulating pump 600 / the second cold capacity self-regulating pump 700 of the cold capacity self-regulating pump assembly, the actual discharge flow of the corresponding two-phase cold plate 200 is obtained through the second flow meter, and the working frequency of the first cold capacity self-regulating pump 600 / the second cold capacity self-regulating pump 700 of the cold capacity self-regulating pump assembly is corrected by the obtained actual discharge flow.

[0088] The present application also provides a cooling micromodule device, including the above-mentioned liquid cooling system. The cooling micromodule device includes the above-mentioned liquid cooling system, and the cooling micromodule device adjusts the liquid inlet flow of the two-phase cold plate 200 through a cold distribution unit, a power distribution unit and a control unit 400.

[0089] The present application also provides a data center, including the above-mentioned liquid cooling system. The data center includes the above-mentioned cooling liquid cooling, and the data center adjusts the working frequency of the cold capacity self-regulating pump assembly installed on the distribution liquid assembly through the cold capacity distribution unit, the power distribution unit and the control unit 400, thereby adjusting the liquid inlet flow of the two-phase cold plate 200.

[0090] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0091] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A liquid cooling system, characterized in that: The liquid cooling system comprises: a plurality of two-phase cold plates, an electro-liquid integrated distribution module respectively connected to the two-phase cold plates, and a liquid cooling heat exchange module connected to the electro-liquid integrated distribution module; wherein the electro-liquid integrated distribution module comprises: The power distribution unit is provided with a power distribution trunk line electrically connected to the equipment to be cooled at each node; A cold capacity distribution unit is provided with a distribution liquid assembly connected to the two-phase cold plate, and a cold capacity self-regulating pump assembly provided on each branch of the distribution liquid assembly and corresponding to the two-phase cold plate; The control unit is electrically connected to the power distribution unit and the cooling self-regulating pump assembly, respectively. The control unit collects the power consumption information corresponding to the equipment to be cooled at each node through the power distribution unit; and / or the output power information of each power distribution trunk in the power distribution unit; and adjusts the working frequency of the cooling self-regulating pump assembly corresponding to each node according to the power consumption information and / or the output power information.

2. The liquid cooling system according to claim 1, characterized in that: The power distribution unit, the cooling distribution unit and the control unit in the electric-liquid integrated distribution module are configured as an integrated structure.

3. The liquid cooling system according to claim 1, characterized in that: The liquid separation and collection assembly is provided with a liquid separation pipeline and a liquid collection pipeline, wherein; The liquid separation pipeline includes a liquid separation pipeline body, and a plurality of first liquid separation branches arranged on the liquid separation pipeline body and correspondingly connected to the two-phase cold plates of each node; The cooling capacity self-regulating pump assembly includes a first cooling capacity self-regulating pump, and the first cooling capacity self-regulating pump is arranged on the side of the first liquid separation branch connected to the liquid separation pipeline body, wherein the first cooling capacity self-regulating pump is electrically connected to the control unit.

4. The liquid cooling system according to claim 3, characterized in that: The liquid separation pipeline further includes a plurality of second liquid separation branches which are arranged on the main body of the liquid separation pipeline and are correspondingly connected to the two-phase cold plates at each node; The cooling capacity self-regulating pump assembly includes a second cooling capacity self-regulating pump, and the second cooling capacity self-regulating pump is arranged on the side of the second liquid separation branch connected to the liquid separation pipeline body, wherein the second cooling capacity self-regulating pump is electrically connected to the control unit.

5. The liquid cooling system according to claim 3, characterized in that: The electro-hydraulic integrated distribution module further includes a first flow meter electrically connected to the control unit, the first flow meter being arranged on a liquid distribution pipeline connecting the liquid outlet of the cold capacity self-regulating pump assembly and the liquid inlet of the two-phase cold plate of each node, or being arranged as an integral structure with the cold capacity self-regulating pump assembly; The first flow meter is used to detect the liquid inlet flow of the two-phase cold plate at each node and transmit the data to the control unit.

6. The liquid cooling system according to claim 3, characterized in that: The liquid collecting pipeline includes a liquid collecting pipeline body, a plurality of first fluid pipelines arranged on the liquid collecting pipeline body and correspondingly connected to the two-phase cold plates of each node, a fluid separation part arranged in the liquid collecting pipeline body, and at least two fluid outlets connected to the liquid cooling heat exchange module.

7. The liquid cooling system according to claim 6, characterized in that: The liquid cooling system also includes a second flow meter electrically connected to the control unit, and the second flow meter is arranged between the fluid outlet and the liquid cooling heat exchange module, and is used to detect the discharge flow of the two-phase cold plate and transmit data to the control unit.

8. A control method using the liquid cooling system according to any one of claims 1 to 7, characterized in that: The control method of the liquid cooling system comprises: The control unit is electrically connected to the power distribution unit and the cold capacity self-regulating pump assembly of the cold capacity distribution unit respectively; The power distribution trunk of the power distribution unit is electrically connected to the device to be cooled, and the power distribution unit is used to collect the power consumption information corresponding to the device to be cooled at each node; and / or the output power information of each power distribution trunk in the power distribution unit is transmitted to the control unit; The control unit adjusts the operating frequency of the cold capacity self-regulating pump assembly according to the power consumption information and / or the output power information transmitted by the power distribution unit.

9. The control method of the liquid cooling system according to claim 8, characterized in that: The control unit calculates a correction coefficient according to a correction formula to correct the operating frequency of the cooling capacity self-regulating pump assembly; The correction formula is: K=P / P 总 , where K is the correction coefficient, P is the power of the single-layer two-phase cold plate, P 总 is the sum of the powers of the multiple two-phase cold plates of the liquid cooling system.

10. The control method of the liquid cooling system according to claim 8, characterized in that: The control unit calculates a correction coefficient according to a correction formula to correct the operating frequency of the cooling capacity self-regulating pump assembly; The correction formula is: K=K H *P / P 总 , where K is the correction factor, P is the power of the two-phase cold plate of a single layer, P 总 is the total power of the two-phase cold plates of the liquid cooling system, K H is the weight coefficient, K H The limitation is made according to the relative position between the single-layer two-phase cold plate and the water inlet of the liquid separation pipeline of the liquid separation and collection assembly.

11. The control method of the liquid cooling system according to claim 8, characterized in that: Install a first flow meter on the liquid distribution pipeline connecting the liquid outlet of the cold capacity self-regulating pump assembly and the liquid inlet of the two-phase cold plate at each node, or integrate the first flow meter on the cold capacity self-regulating pump assembly; The first flow meter is electrically connected to the control unit, and is used to detect the actual liquid inlet flow of the two-phase cold plate and transmit the actual liquid inlet flow to the control unit. The control unit adjusts the working frequency of the corresponding cold capacity self-regulating pump assembly according to the actual liquid inlet flow.

12. The control method of the liquid cooling system according to claim 11, characterized in that: The control unit is provided with a preset flow value, and the control unit compares the actual liquid inlet flow rate with the preset flow value. If the preset flow value is greater than the actual liquid inlet flow rate, the control unit increases the operating frequency of the cold capacity self-regulating pump assembly. If the preset flow value is less than the actual liquid inlet flow rate, the control unit reduces the operating frequency of the cold capacity self-regulating pump assembly.

13. The control method of the liquid cooling system according to claim 8, characterized in that: A second flow meter is installed between the fluid outlet of the liquid collecting pipeline and the liquid-cooled heat exchange module. The second flow meter is electrically connected to the control unit. The second flow meter is used to detect the actual discharge flow of the two-phase cold plate and transmit the actual discharge flow to the control unit. The control unit adjusts the operating frequency of the cooling capacity self-regulating pump assembly according to the actual discharge flow.

14. A cooling micromodule device, characterized in that: A liquid cooling system comprising any one of claims 1-7.

15. A data center, characterized in that: A liquid cooling system comprising any one of claims 1-7.

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