Two-phase cooling system, cooling micromodule device and data center

Abstract

The utility model relates to a two-phase cooling system, a cooling micromodule device and a data center, the two-phase cooling system comprises a liquid cooling cabinet, a vapor-liquid separation and cooling capacity transmission and distribution unit and a liquid cooling heat exchange unit, the liquid cooling cabinet is used for being connected with IT equipment to cool the IT equipment; the vapor-liquid separation and cooling capacity transmission and distribution unit is connected with the liquid cooling cabinet through a pipeline to form fluid circulation, vapor-liquid two-phase mixed fluid discharged by the liquid cooling cabinet flows into the vapor-liquid separation and cooling capacity transmission and distribution unit through the pipeline to be subjected to vapor-liquid separation, and separated liquid-phase fluid flows into the liquid cooling cabinet through the pipeline; the liquid cooling heat exchange unit is connected with the vapor-liquid separation and cooling capacity transmission and distribution unit through a pipeline to form fluid circulation, vapor-phase fluid separated by the vapor-liquid separation and cooling capacity transmission and distribution unit flows into the liquid cooling heat exchange unit through the pipeline to be cooled, and the cooled fluid cooled to a preset temperature flows into the vapor-liquid separation and cooling capacity transmission and distribution unit.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of liquid cooling, in particular to a two-phase cooling system, a cooling micro-module device and a data center. BACKGROUND

[0002] The immersion liquid cooling technology mainly uses the immersion phase change liquid cooling technology. The technology is to immerse IT equipment in cooling liquid. The cooling liquid absorbs the heat of the heat generating components such as chips, memories and power supplies, and then vaporizes to take away the heat of the heat generating components in the form of phase change heat transfer. The existing two-phase cooling system includes a liquid cooling cabinet and a liquid cooling heat exchange unit (CDM) connected with each other. The liquid cooling cabinet uses a vapor-liquid two-phase flow cooling plate to cool the IT equipment. The liquid cooling heat exchange unit is used to liquefy the gaseous refrigerant discharged by the liquid cooling cabinet and convert it into a liquid state. However, the vapor-liquid two-phase refrigerant output by the vapor-liquid two-phase flow cooling plate of the liquid cooling cabinet cannot be effectively separated in time, and part of the gaseous refrigerant will be discharged with the system exhaust, resulting in loss of refrigerant. CONTENT OF THE UTILITY MODEL

[0003] Therefore, it is necessary to provide a two-phase cooling system, a cooling micro-module device and a data center for the problem of separating the vapor-liquid two-phase mixed fluid.

[0004] A two-phase cooling system, comprising:

[0005] A liquid cooling cabinet for connecting with IT equipment to cool the IT equipment;

[0006] A vapor-liquid separation and cold energy distribution unit connected with the liquid cooling cabinet through pipelines and forming a fluid circulation. The vapor-liquid two-phase mixed fluid discharged by the liquid cooling cabinet flows into the vapor-liquid separation and cold energy distribution unit through the pipelines to be separated into liquid and gas. The separated liquid phase fluid flows into the liquid cooling cabinet through the pipelines.

[0007] A liquid cooling heat exchange unit connected with the vapor-liquid separation and cold energy distribution unit through pipelines and forming a fluid circulation. The vapor phase fluid separated by the vapor-liquid separation and cold energy distribution unit flows into the liquid cooling heat exchange unit through the pipelines to be cooled. The cooled fluid cooled to a preset temperature flows into the vapor-liquid separation and cold energy distribution unit.

[0008] In one embodiment, the vapor-liquid separation and cold energy distribution ring network is arranged on the upper side of the liquid cooling cabinet.

[0009] In one embodiment, the vapor-liquid separation and cold energy distribution unit includes a main vapor outlet pipeline corresponding to each liquid cooling cabinet, a main liquid inlet pipeline corresponding to each liquid cooling cabinet, and a control component arranged on the main vapor outlet pipeline and / or the main liquid inlet pipeline.

[0010] In one of the embodiments, the main steam outlet pipeline and the main liquid inlet pipeline can be integrally arranged and installed on the upper side of the liquid cooling cabinet.

[0011] In one of the embodiments, the liquid cooling cabinet further comprises an electro-hydraulic integrated distribution module, which is connected with the vapor-liquid separation and cold energy distribution unit, at least two vapor-liquid two-phase flow cooling plates and IT equipment in the liquid cooling cabinet, and is used for collecting power consumption information of the IT equipment at each node in the liquid cooling cabinet, and controlling the flow of fluid in the vapor-liquid two-phase flow cooling plate according to the power consumption information.

[0012] In one of the embodiments, the electro-hydraulic integrated distribution module comprises:

[0013] An electric energy distribution module is provided, which is electrically connected with each node IT equipment;

[0014] A first cold energy distribution module is provided, which comprises a first distribution pipeline main body connected with the liquid cooling cabinet, and a cold energy self-adjusting assembly arranged on each branch of the first distribution pipeline main body and corresponding to the vapor-liquid two-phase flow cooling plate;

[0015] A third cold energy distribution module is provided, which comprises a third pipeline main body, a plurality of third fluid pipelines arranged on the third pipeline main body and corresponding to each node vapor-liquid two-phase flow cooling plate, and a fluid outlet communicated with the vapor-liquid separation and cold energy distribution unit;

[0016] A control module is electrically connected with the electric energy distribution module and the cold energy self-adjusting assembly, respectively, the control module collects the power consumption information corresponding to each node IT equipment through the electric energy distribution module, and / or the output electric quantity information of each electric quantity distribution trunk in the electric energy distribution module, and adjusts the working frequency of the corresponding cold energy self-adjusting assembly of each node according to the power consumption information and / or the output electric quantity information.

[0017] In one of the embodiments, the liquid cooling cabinet comprises a plurality of vapor-liquid two-phase flow cooling plates, and each of the vapor-liquid two-phase flow cooling plates is communicated with the first cold energy distribution module and the third cold energy distribution module.

[0018] In one of the embodiments, a plurality of liquid cooling cabinets are provided, and each of the liquid cooling cabinets is communicated with the same vapor-liquid separation and cold energy distribution ring network.

[0019] In one of the embodiments, a plurality of liquid cooling heat exchange units are provided, and each of the liquid cooling heat exchange units is communicated with the same vapor-liquid separation and cold energy distribution ring network.

[0020] The application also provides a cooling micro-module device comprising the two-phase cooling system described in any one of the above.

[0021] The application also provides a data center comprising the two-phase cooling system according to any one of the above. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 Structure diagram of the electro-hydraulic integrated distribution module and the fluid separation module.

[0023] Figure 2 Principle diagram of electro-hydraulic distribution for the electro-hydraulic integrated distribution module.

[0024] Figure 3 Principle diagram of the two-phase cooling system provided by the embodiment of the application.

[0025] Figure 4 Structure diagram of the two-phase cooling system provided by the first embodiment of the application.

[0026] Figure 5 Structure diagram of the two-phase cooling system provided by the second embodiment of the application.

[0027] Figure 6 Structure diagram of the two-phase cooling system provided by the third embodiment of the application.

[0028] In the drawings:

[0029] 100, liquid cooling cabinet; 110, vapor-liquid two-phase flow cooling plate;

[0030] 200, liquid cooling heat exchange unit;

[0031] 300, electric energy distribution module; 310, electric energy distribution trunk; 320, output branch; 330, communication line;

[0032] 400, first cold energy distribution module; 410, first distribution pipeline main body; 420, first distribution branch; 430, second distribution branch; 440, power pump; 450, regulating valve;

[0033] 500, second cold energy distribution module;

[0034] 600, control module;

[0035] 800, vapor-liquid separation and cold energy distribution unit; 810, control valve;

[0036] 900, IT equipment. DETAILED DESCRIPTION

[0037] In order to make the above objectives, features and advantages of the present application more clear and comprehensible, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways beyond the specific embodiments described herein and by one of ordinary skill in the art without departing from the spirit and scope of the present application, and it is therefore intended that all such variations be considered as falling within the scope of the present application. It should be understood that the use of the terms "include", "comprise" or "contain" herein should not be understood as limiting the present application to the features or steps described herein, but rather the use of these terms is intended to cover the presence of the features or steps described herein as well as the presence of other features or steps not described herein.

[0038] In the description of the present application, it should be understood that, if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0039] In addition, if these terms "first", "second" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features referred to. Therefore, the features defined with "first", "second" can include at least one of the features explicitly or implicitly. In the description of the present application, if the term "a plurality of" appears, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified.

[0040] In the present application, unless otherwise explicitly specified and limited, if the terms "mount", "connect", "connect", "fix" and the like appear, these terms should be interpreted broadly. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication or interaction relationship of two elements, unless otherwise explicitly limited. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] In the present application, unless specifically defined and limited otherwise, if there is a description of a first feature "on" or "under" a second feature, etc., it can mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "over", "above" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only means that the first feature is higher than the second feature in horizontal height. The first feature "under", "below" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only means that the first feature is lower than the second feature in horizontal height.

[0042] It should be noted that if an element is referred to as "fixed to" or "provided on" another element, it can be directly on the other element or there can be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be an intermediate element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are only for illustrative purposes and do not represent the only implementation.

[0043] The present application provides a two-phase cooling system, such as Figures 1 to 6 As shown, the two-phase cooling system comprises:

[0044] A plurality of vapor-liquid two-phase flow cooling plates 110 are used to be in heat transfer connection with the IT equipment 900;

[0045] An electro-hydraulic integrated distribution module is connected with the vapor-liquid two-phase flow cooling plate 110 and the IT equipment 900 respectively; is used to collect the power consumption information corresponding to each node IT equipment 900; and control the flow of the fluid in the vapor-liquid two-phase flow cooling plate 110 according to the power consumption information;

[0046] A fluid separation module is connected with the electro-hydraulic integrated distribution module and the liquid cooling heat exchange unit 200 respectively; the fluid separation module separates the vapor-liquid mixed state fluid collected from the electro-hydraulic integrated distribution module into vapor state fluid and liquid state fluid; the vapor state fluid and the liquid state fluid are respectively communicated with the liquid cooling heat exchange unit 200 through different pipelines;

[0047] The liquid cooling heat exchange unit 200 is connected with the electro-hydraulic integrated distribution module and / or the fluid separation module respectively, the liquid cooling heat exchange unit 200 receives the vapor state fluid and the liquid state fluid through different pipelines and cools them to preset temperature cooling fluid, and the cooling fluid is supplied to the vapor-liquid two-phase flow cooling plate 110 through the electro-hydraulic integrated distribution module.

[0048] In the two-phase cooling system, when the IT device 900 generates a large amount of heat, the heat is first transferred to the cooling fluid in the vapor-liquid two-phase flow cooling plate 110, and the fluid absorbs the heat and rapidly evaporates into a vapor state fluid. The latent heat of vaporization of the cooling fluid rapidly removes the heat from the IT device 900, so that the IT device 900 can be stably operated at an optimal temperature for a long time, and the heat spot phenomenon is reduced, and the service life of the IT device 900 is greatly prolonged. In order to further solve the problem that the heat generated by each IT device 900 is different, and the vapor-liquid two-phase flow cooling plate 110 is prone to dry burning, phase change does not occur in the vapor-liquid two-phase flow cooling plate 110, and other situations, and the internal temperature of the system is abnormally high, and the system energy consumption is too large in a serious case.

[0049] Secondly, the application also provides an electro-hydraulic integrated distribution module, which is connected with the vapor-liquid two-phase flow cooling plate 110 and the IT device 900. The electro-hydraulic integrated distribution module can collect the power consumption information of each node IT device 900, and control the flow of the fluid in the vapor-liquid two-phase flow cooling plate 110 according to the power consumption information, so as to adjust the liquid inlet amount of the vapor-liquid two-phase flow cooling plate 110. Specifically, the electro-hydraulic integrated distribution module can calculate the heat generated by each node IT device 900 through the power consumption information collected by each node IT device 900, or calculate the heat generated by the corresponding IT device 900 through the cooling capacity information (such as the flow of each liquid supply branch) of each vapor-liquid two-phase flow cooling plate 110, or calculate the heat generated by the corresponding IT device 900 according to the power consumption information and the cooling capacity information, and then control the flow of each liquid supply branch of the vapor-liquid two-phase flow cooling plate 110 according to the heat generated, so that the liquid fluid entering the vapor-liquid two-phase flow cooling plate 110 absorbs heat and immediately changes into a vapor state fluid. The phase change heat transfer potential of each node vapor-liquid two-phase flow cooling plate 110 can be maximized, the system heat exchange efficiency can be improved, and the data center energy consumption can be reduced.

[0050] Further, the application also provides a fluid separation module, which separates the vapor-liquid mixed state fluid collected from the electro-hydraulic integrated distribution module into vapor state fluid and liquid state fluid, and communicates the separated vapor state fluid and liquid state fluid with the liquid cooling heat exchange unit 200 through different pipelines. Specifically, the system can quickly separate the vapor-liquid mixed state fluid of the vapor-liquid two-phase flow cooling plate 110, which not only enhances the heat exchange efficiency of the liquid cooling heat exchange unit 200, but also further improves the stability of the system operation, and effectively reduces the loss of the cooling fluid.

[0051] Further, the electro-hydraulic integrated distribution module is connected with a plurality of node vapor-liquid two-phase flow cooling plates 110 in parallel through pipelines. Each node vapor-liquid two-phase flow cooling plate 110 can be provided with a plurality of vapor-liquid two-phase flow cooling plates arranged in series or a plurality of vapor-liquid two-phase flow cooling plates arranged in parallel.

[0052] Specifically, a plurality of node vapor-liquid two-phase flow cooling plates 110 arranged in parallel form a liquid cooling cabinet 100, and the cooling system is provided with a plurality of liquid cooling cabinets 100. The liquid cooling heat exchange unit 200 is connected with the plurality of liquid cooling cabinets 100, and the high-temperature fluid flowing out of the plurality of liquid cooling cabinets 100 is cooled to a preset temperature cooling fluid, and the cooled fluid is supplied to each node vapor-liquid two-phase flow cooling plate 110 in each liquid cooling cabinet 100 through the electro-hydraulic integrated distribution module. The system can ensure efficient heat dissipation, support higher liquid cooling cabinet density, and improve the computing power of the data center.

[0053] Further, as shown in Figures 3 to 6 When the electro-hydraulic integrated distribution module and the fluid separation module are arranged separately, the fluid separation module is arranged on the upper side of the electro-hydraulic integrated distribution module.

[0054] Preferably, the two-phase cooling system includes a plurality of liquid cooling cabinets 100, and each liquid cooling cabinet 100 includes a plurality of vapor-liquid two-phase flow cooling plates 110.

[0055] The fluid separation module includes an electro-hydraulic integrated distribution module arranged on the upper side of the liquid cooling cabinet 100 and in communication with at least two liquid cooling cabinets 100, forming a vapor-liquid separation and cold energy distribution unit 800.

[0056] More preferably, the vapor-liquid separation and cold energy distribution unit 800 is connected with each liquid cooling cabinet 100 through a corresponding pipeline and forms a fluid circulation. The vapor-liquid two-phase mixed fluid in each liquid cooling cabinet 100 flows into the vapor-liquid separation and cold energy distribution unit 800 through the pipeline for gas-liquid separation. The separated liquid phase fluid flows into the vapor-liquid two-phase flow cooling plate 110 through the pipeline and the electro-hydraulic integrated distribution module in turn. The separated vapor phase fluid flows into the liquid cooling heat exchange unit 200.

[0057] The two-phase cooling system of the embodiment, the vapor-liquid mixed fluid discharged by each node vapor-liquid two-phase flow cooling plate 110 flows into the fluid separation module, because the fluid separation module is arranged on the upper side of the electro-hydraulic integrated distribution module, the vapor-liquid mixed fluid is buffered in the fluid separation module, then the liquid fluid in the fluid separation module can continue to flow out to the vapor-liquid two-phase flow cooling plate 110 to continue to participate in the cooling of the cooling plate; the vapor fluid is liquefied in the fluid separation module, part of which enters the liquid cooling heat exchange unit 200, and after being fully liquefied, it continues to be sent back to the fluid separation module to continue to participate in the cooling, so that the vapor-liquid separation of the vapor-liquid mixed fluid can be further carried out, not only the heat exchange efficiency of the liquid cooling heat exchange unit 200 is enhanced, the stability of the system operation is improved; the loss of the cooling fluid is effectively reduced. Also, the system can run stably under the stable system pressure, and the liquid fluid at a preset temperature (which includes but is not limited to the saturation temperature of the fluid and slightly lower than the saturation temperature of the fluid) separated by the vapor-liquid separation and cold energy distribution unit 800 is supplied to the electro-hydraulic integrated distribution module, the phase change heat exchange efficiency of each node vapor-liquid two-phase flow cooling plate 110 is improved. The liquid fluid flows through the vapor-liquid two-phase flow cooling plate 110 and exchanges heat with the IT equipment 900, and then vaporizes by phase change, so that the latent heat of phase change of the fluid is maximized, and the phase change heat exchange efficiency of each node vapor-liquid two-phase flow cooling plate 110 is improved. According to the experiment comparison, the heat dissipation effect of the liquid cooling cabinet of the present application can be improved by more than one time, the installed density of the liquid cooling cabinet 100 in the vapor-liquid two-phase flow cooling plate system can be effectively improved, and the power distribution of the data center machine room can be reduced; zero-carbon heating can also be directly realized.

[0058] In one embodiment, the vapor-liquid separation and cold energy distribution unit includes a main vapor outlet pipeline corresponding to each liquid cooling cabinet, a main liquid inlet pipeline corresponding to each liquid cooling cabinet, and a control component arranged on the main vapor outlet pipeline and / or the main liquid inlet pipeline.

[0059] By arranging the main liquid inlet pipeline, the liquid fluid in the vapor-liquid separation and cold energy distribution unit 800 flows into the plurality of vapor-liquid two-phase flow cooling plates 110 of each liquid cooling cabinet 100 through the main liquid inlet pipeline, and by arranging the main vapor outlet pipeline, the vapor-liquid mixed fluid discharged by the plurality of vapor-liquid two-phase flow cooling plates 110 of each liquid cooling cabinet 100 flows into the vapor-liquid separation and cold energy distribution unit 800 through the main vapor outlet pipeline. Moreover, the control component is arranged on the main liquid inlet pipeline and the main vapor outlet pipeline, so as to control the opening and closing of the main vapor inlet pipeline and the main liquid outlet pipeline.

[0060] Preferably, the main vapor inlet pipeline and the main liquid outlet pipeline can be integrally arranged and installed on the upper side of the liquid cooling cabinet 100.

[0061] More preferably, the control component is a control valve 810.

[0062] Further, as Figure 1 and Figure 2As shown, when the electro-hydraulic integrated distribution module and the fluid separation module are arranged separately, the electro-hydraulic integrated distribution module comprises:

[0063] The electric energy distribution module is arranged to be electrically connected with each node IT device 900 through an electric quantity distribution trunk 310.

[0064] The first cold energy distribution module 400 is arranged to be connected with the vapor-liquid two-phase flow cooling plate 110 through a first distribution pipeline main body 410, and a cold quantity self-adjusting assembly arranged on each branch of the first distribution pipeline main body 410 and corresponding to the vapor-liquid two-phase flow cooling plate 110.

[0065] The third cold energy distribution module is arranged to have a third pipeline main body, a plurality of third fluid pipelines arranged on the third pipeline main body and corresponding to each node vapor-liquid two-phase flow cooling plate 110, and a fluid outlet connected with the vapor-liquid separation and cold quantity distribution unit 800.

[0066] The control module 600 is electrically connected with the electric energy distribution module and the cold quantity self-adjusting assembly, respectively. The control module 600 collects the power consumption information of each node IT device 900 through the electric energy distribution module, and / or the output electric quantity information of each electric quantity distribution trunk 310 in the electric energy distribution module, and adjusts the working frequency of the corresponding cold quantity self-adjusting assembly of each node according to the power consumption information and / or the output electric quantity information.

[0067] When the electro-hydraulic integrated distribution module and the fluid separation module are arranged separately, the electro-hydraulic integrated distribution module of the embodiment is arranged to have the first cold energy distribution module 400, so that the fluid cooled by the liquid cooling heat exchange unit 200 flows into each node vapor-liquid two-phase flow cooling plate 110 through the first distribution pipeline main body 410, each branch of the first distribution pipeline main body 410 and the cold quantity self-adjusting assembly. The third cold energy distribution module is arranged to have a third pipeline main body, a plurality of third fluid pipelines arranged on the third pipeline main body and corresponding to each node vapor-liquid two-phase flow cooling plate 110, and a fluid outlet connected with the vapor-liquid separation and cold quantity distribution unit 800. The vapor-liquid mixed fluid flowing out of each node vapor-liquid two-phase flow cooling plate 110 flows into the vapor-liquid separation and cold quantity distribution unit 800 through the third fluid pipeline and the third pipeline main body in sequence, and is buffered and separated in the vapor-liquid separation and cold quantity distribution unit 800. The separated vapor-state fluid and liquid-state fluid flow into the liquid cooling heat exchange unit 200. The electric energy distribution module 300 is electrically connected with each node IT device 900 through the electric quantity distribution trunk 310, so as to collect the power consumption information of each node IT device 900 and / or the cold quantity information of each node vapor-liquid two-phase flow cooling plate 110, and transmit the power consumption information and / or the cold quantity information to the control module 600. The control module 600 adjusts the working frequency of the corresponding cold quantity self-adjusting assembly of each node according to the power consumption information and / or the output electric quantity information, so as to adjust the liquid inflow amount of each node vapor-liquid two-phase flow cooling plate 110.

[0068] Specifically, the electric energy distribution module 300 includes an electrically connected electric energy distribution main line 310 and an output branch 320, the output branch 320 and each node vapor-liquid two-phase flow cooling plate 110 are electrically connected one by one, and the electric energy distribution main line 310 is electrically connected with the control module 600 through a communication line 330.

[0069] Further, the first cold energy distribution module 400 includes:

[0070] The first distribution pipeline body 410 is provided with a plurality of first distribution branches 420 corresponding to the vapor-liquid two-phase flow cooling plates 110; the cold energy self-regulating assembly is provided with a first cold energy self-regulating part electrically connected with the control module 600, and the first distribution branch 420 is provided with the first cold energy self-regulating part on the side in communication with the distribution pipeline body;

[0071] Preferably, the first distribution pipeline body 410 is further provided with a plurality of second distribution branches 430 corresponding to the vapor-liquid two-phase flow cooling plates 110; the cold energy self-regulating assembly is further provided with a second cold energy self-regulating part electrically connected with the control module 600, and the second distribution branch 430 is provided with the second cold energy self-regulating part on the side in communication with the distribution pipeline body.

[0072] By setting the first cold energy distribution module 400, the fluid cooled by the liquid cooling heat exchange unit 200 can flow into the vapor-liquid two-phase flow cooling plates 110 of each node through the first distribution pipeline body 410, the first distribution branch 420 and the first cold energy self-regulating part of the cold energy self-regulating assembly. Alternatively, the fluid cooled by the liquid cooling heat exchange unit 200 can flow into the vapor-liquid two-phase flow cooling plates 110 of each node through the first distribution pipeline body 410, the second distribution branch 430 and the second cold energy self-regulating part of the cold energy self-regulating assembly.

[0073] It should be noted that the first cold energy distribution module 400 provides two flow paths, and the fluid cooled by the liquid cooling heat exchange unit 200 can select one of the two flow paths, and the other flow path is used as a backup.

[0074] Specifically, the first and second cold energy self-regulating parts include a power pump 440 and / or a regulating valve 450. The first and second cold energy self-regulating parts both include a power pump 440 and / or a regulating valve 450, that is, the first distribution branch 420 and the second distribution branch 430 are provided with a power pump 440 and / or a regulating valve 450.

[0075] More specifically, the regulating valve 450 is a one-way valve, which is used to limit the flow direction of the liquid cooling medium in the first distribution branch 420 or the second distribution branch 430, so that it can only flow from the power pump 440 to the corresponding vapor-liquid two-phase flow cooling plate 110.

[0076] Further, in order to improve the separation efficiency, as shown in Figures 3 to 6 The liquid cooling heat exchange unit 200 is provided in multiple, and each of the multiple liquid cooling heat exchange units 200 is connected with the gas-liquid separation and cold energy distribution unit 800. The liquid cooling cabinet 100 is provided in multiple, and each of the multiple liquid cooling cabinets 100 is in communication with the same gas-liquid separation and cold energy distribution ring network 800.

[0077] In a specific embodiment, as shown in Figure 4 A plurality of liquid cooling cabinets 100, one gas-liquid separation and cold energy distribution unit 800, and one liquid cooling heat exchange unit 200 are provided, the gas-liquid separation and cold energy distribution unit 800 is connected with the liquid cooling heat exchange unit 200 through a pipeline, and the plurality of liquid cooling cabinets 100 are connected with the gas-liquid separation and cold energy distribution unit 800 through a pipeline circulation.

[0078] In a specific embodiment, as shown in Figure 5 A plurality of liquid cooling cabinets 100, one gas-liquid separation and cold energy distribution unit 800, and two liquid cooling heat exchange units 200 are provided, the gas-liquid separation and cold energy distribution unit 800 is connected with the two liquid cooling heat exchange units 200 through a pipeline, and the plurality of liquid cooling cabinets 100 are connected with the gas-liquid separation and cold energy distribution unit 800 through a pipeline circulation.

[0079] In a specific embodiment, as shown in Figure 6 A plurality of liquid cooling cabinets 100, one gas-liquid separation and cold energy distribution unit 800, and three liquid cooling heat exchange units 200 are provided, the gas-liquid separation and cold energy distribution unit 800 is connected with the three liquid cooling heat exchange units 200 through a pipeline, and the plurality of liquid cooling cabinets 100 are connected with the gas-liquid separation and cold energy distribution unit 800 through a pipeline circulation.

[0080] It can be understood that the specific number of liquid cooling heat exchange units 200 is set according to actual operation needs.

[0081] In summary, the working principle of the present application is as follows:

[0082] The working principle of the present application (as shown in Figures 3 to 6 ) is as follows:

[0083] The first liquid supply process: the low-temperature liquid cooling medium is pressurized by the power equipment in the liquid cooling heat exchange unit 200, transported into the gas-liquid separation and cold energy distribution unit 800 through a pipeline, and the liquid level of the gas-liquid separation and cold energy distribution unit 800 is maintained stable by adjusting the valve on the pipeline connecting the gas-liquid separation and cold energy distribution unit 800 and the liquid cooling heat exchange unit 200;

[0084] Secondary liquid supply process: the cooling medium in the vapor-liquid separation and cold energy distribution unit 800 is extracted by the power pump 440 of the cold energy distribution module, transported to the vapor-liquid two-phase flow cooling plate 110, and the IT equipment 900800 (IT equipment) dissipates heat to the cooling medium through the vapor-liquid two-phase flow cooling plate 110, and the cooling medium is heated and evaporated.

[0085] Primary liquid return (gas) process: the heated cooling medium in the vapor-liquid two-phase flow cooling plate 110 returns to the vapor-liquid separation and cold energy distribution unit 800 in the form of vapor-liquid two-phase flow.

[0086] Secondary gas return process: the two-phase cooling medium in the vapor-liquid separation and cold energy distribution unit 800 is separated out under the action of gravity, and the gaseous cooling medium in the vapor-liquid separation and cold energy distribution unit 800 is finally introduced into the liquid cooling heat exchange unit 200 for cooling, and the cooled cooling medium is re-supplied to the primary liquid supply and supplemented into the vapor-liquid separation and cold energy distribution unit 800. The liquid cooling medium in the vapor-liquid separation and cold energy distribution unit 800 re-participates in the secondary liquid supply and is extracted by the power pump 440.

[0087] The beneficial effects of the present application include:

[0088] (1) The present application uses two-phase cooling technology and uses fluorinated liquid with a lower boiling point as a cooling medium, effectively solving the problems of water-based solution impurities, deionization, mold and other water quality problems of traditional single-phase cold plates, and reducing the operation and maintenance cost of the system;

[0089] (2) The electronic fluorinated liquid used in the present application has the advantages of high insulation, no ignition point, no flash point, etc., and will not cause damage to server components after leakage, improving the system operation reliability;

[0090] (3) The present application designs a power pump 440 on each cabinet cold plate branch, which can independently adjust the cooling medium flow and flow rate of the cold plate branch according to the heat dissipation and temperature rise of each cold plate, realize independent liquid supply of each branch, solve the problems of uncontrollable flow distribution of each branch of the conventional vapor-liquid two-phase flow cooling plate 110, uneven cooling effect between different cold plates, and poor stability of the circulating system. At the same time, the number of pumps of each cold plate branch is two (one for standby), by setting adjusting valves 450 on the first liquid distribution branch 420 and the second liquid distribution branch 430, the adjusting valves 450 are one-way valves to ensure that the cooling medium will not backflow between the power pumps 440, reducing the redundancy of the cooling system and improving the reliability of the system.

[0091] (4) The present application (such as Figures 3 to 6As shown in the figure, a vapor-liquid separation and cooling distribution unit 800 is designed at the top of the circulation system's main loop. The vapor-liquid mixed fluid output from the two-phase flow cooling plates 110 in each branch flows through pipelines to the vapor-liquid separation and cooling distribution unit 800, where it is buffered. The liquid fluid flows out from the bottom of the vapor-liquid separation and cooling distribution unit 800 to continue cooling the cold plates. The gaseous fluid liquefies within the vapor-liquid separation and cooling distribution unit 800 and partially enters the liquid-cooled heat exchange unit 200 (CDM). After being fully liquefied, it is returned to the vapor-liquid separation and cooling distribution unit 800 for further cooling.

[0092] (5) This application (such as Figures 3 to 6 To ensure reliable centralized liquid supply to multiple cabinets (as shown), multiple liquid-cooling cabinets 100 share a single vapor-liquid separation and cooling distribution unit 800, achieving a compact system layout. Furthermore, multiple liquid-cooling heat exchange units 200 are configured based on the number of liquid-cooling cabinets 100. This ensures that multiple liquid-cooling heat exchange units 200 can jointly liquefy and supply the cooling medium, while also enabling a primary-backup relationship between the units 200, ensuring reliable cooling medium supply.

[0093] Furthermore, to finely adjust the liquid inflow rate of each vapor-liquid two-phase flow cooling plate 110 of the liquid-cooling cabinet 100, in some embodiments, the two-phase cooling system further includes a first flowmeter electrically connected to the control module 600. The first flowmeter is installed in the first liquid distribution branch 420 and / or the second liquid distribution branch 430 in the pipeline area connecting the power pump 440 and the vapor-liquid two-phase flow cooling plate 110. The first flowmeter is used to detect the liquid inflow rate of the vapor-liquid two-phase flow cooling plate 110 and transmit the data to the control module 600. By setting the first flowmeter to detect the actual liquid inflow rate of the vapor-liquid two-phase flow cooling plate 110, the control module 600 can correct the operating frequency of the power pump 440 according to the actual liquid inflow rate.

[0094] Specifically, a plurality of first flow meters are provided, and the plurality of first flow meters are provided one-to-one on the plurality of first liquid separation branches 420 and / or the second liquid separation branches 430 , so as to detect the actual liquid inlet flow of each vapor-liquid two-phase flow cooling plate 110 .

[0095] Specifically, the control module 600 is provided with a preset flow value, and the control module 600 compares the actual liquid inlet flow value with the preset flow value. If the preset flow value is greater than the actual liquid inlet flow value, it is determined that the actual liquid inlet flow value is small and does not meet the demand. At this time, the control module 600 increases the working frequency of the power pump 440, thereby increasing the liquid inlet amount of the vapor-liquid two-phase flow cooling plate 110. If the preset flow value is less than the actual liquid inlet flow value, it is determined that the actual liquid inlet flow value is large and exceeds the demand. At this time, the control module 600 reduces the working frequency of the power pump 440, thereby reducing the liquid inlet amount of the vapor-liquid two-phase flow cooling plate 110.

[0096] In some embodiments, the two-phase cooling system further comprises a second flow meter electrically connected with the control module 600, the flow meter being installed on the main liquid outlet pipeline, and the second flow meter being used for detecting the liquid outlet flow of the vapor-liquid two-phase flow cooling plate 110 and transmitting data to the control module 600. By setting the second flow meter to detect the actual liquid outlet flow of the vapor-liquid two-phase flow cooling plate 110, the control module 600 can correct the working frequency of the power pump 440 according to the actual liquid outlet flow.

[0097] Specifically, a plurality of second flow meters are provided, and the plurality of second flow meters are one-to-one correspondingly arranged on the plurality of main liquid outlet pipelines, so as to detect the actual liquid outlet flow of each vapor-liquid two-phase flow cooling plate 110 of the cooling system.

[0098] The application also provides a cooling micro-module device comprising the two-phase cooling system of any one of the above. By means of the vapor-liquid separation and cold energy distribution unit 800, the vapor-liquid two-phase mixed fluid is effectively separated, the probability that part of the gas-phase refrigerant is discharged with system exhaust is reduced, and the loss of refrigerant is reduced.

[0099] The application also provides a data center comprising the two-phase cooling system of any one of the above. By means of the vapor-liquid separation and cold energy distribution unit 800, the vapor-liquid two-phase mixed fluid is effectively separated, and the loss of refrigerant is reduced.

[0100] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, but it should be considered that any combination of the technical features is within the scope of the present disclosure as long as the combination does not cause contradiction.

[0101] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be noted that, for those skilled in the art, some modifications 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 patent protection scope of the present application should be subject to the appended claims.

Claims

1. A two-phase cooling system, characterized in that, The two-phase cooling system comprises: A liquid cooling cabinet for connecting with IT equipment to cool the IT equipment; A vapor-liquid separation and cold energy distribution unit connected with the liquid cooling cabinet through pipelines and forming fluid circulation, the vapor-liquid two-phase mixed fluid discharged from the liquid cooling cabinet flows into the vapor-liquid separation and cold energy distribution unit through the pipelines to perform gas-liquid separation, and the separated liquid phase fluid flows into the liquid cooling cabinet through the pipelines; A liquid cooling heat exchange unit connected with the vapor-liquid separation and cold energy distribution unit through pipelines and forming fluid circulation, the vapor phase fluid separated from the vapor-liquid separation and cold energy distribution unit flows into the liquid cooling heat exchange unit through the pipelines to perform cooling, and the cooled fluid cooled to a preset temperature flows into the vapor-liquid separation and cold energy distribution unit.

2. The two-phase cooling system of claim 1, wherein, The vapor-liquid separation and cold energy distribution ring network is arranged on the upper side of the liquid cooling cabinet.

3. The two-phase cooling system of claim 1, wherein, The vapor-liquid separation and cold energy distribution unit comprises a main vapor outlet pipeline corresponding to each liquid cooling cabinet, a main liquid inlet pipeline corresponding to each liquid cooling cabinet, and a control assembly arranged on the main vapor outlet pipeline and / or the main liquid inlet pipeline.

4. The two-phase cooling system of claim 3, wherein, The main vapor outlet pipeline and the main liquid inlet pipeline can be integrally arranged and installed on the upper side of the liquid cooling cabinet.

5. The two-phase cooling system of claim 1, wherein, The liquid cooling cabinet further comprises an electro-hydraulic integrated distribution module, which is connected with the vapor-liquid separation and cold energy distribution unit, at least two vapor-liquid two-phase flow cooling plates in the liquid cooling cabinet, and the IT equipment, respectively, the electro-hydraulic integrated distribution module is used to collect power consumption information of each node IT equipment in the liquid cooling cabinet, and control the flow of fluid in the vapor-liquid two-phase flow cooling plate according to the power consumption information.

6. The two-phase cooling system of claim 5, wherein, The electro-hydraulic integrated distribution module comprises: An electric energy distribution module comprising an electric energy distribution trunk connected with each node IT equipment; A first cold energy distribution module comprising a first distribution pipeline main body connected with the liquid cooling cabinet, and a cold energy self-regulating assembly arranged on each branch of the first distribution pipeline main body and corresponding to the vapor-liquid two-phase flow cooling plate; A third cold energy distribution module comprising a third pipeline main body, a plurality of third fluid pipelines arranged on the third pipeline main body and corresponding to each node vapor-liquid two-phase flow cooling plate, and a fluid outlet connected with the vapor-liquid separation and cold energy distribution unit; A control module electrically connected with the electric energy distribution module and the cold energy self-regulating assembly, respectively, the control module collects power consumption information corresponding to each node IT equipment through the electric energy distribution module; And / or output electric energy information of each electric energy distribution trunk in the electric energy distribution module; And adjusts the working frequency of each node corresponding cold energy self-regulating assembly according to the power consumption information and / or the output electric energy information.

7. The two-phase cooling system of claim 6, wherein, The liquid cooling cabinet comprises a plurality of vapor-liquid two-phase flow cooling plates, and the plurality of vapor-liquid two-phase flow cooling plates are connected with the first cold energy distribution module and the third cold energy distribution module.

8. The two-phase cooling system of claim 1, wherein, The liquid cooling cabinet is provided with a plurality of vapor-liquid two-phase flow cooling plates, and the plurality of vapor-liquid two-phase flow cooling plates are connected with the first cold energy distribution module and the third cold energy distribution module.

9. The two-phase cooling system of claim 1, wherein, The liquid cooling cabinet is provided with a plurality of vapor-liquid two-phase flow cooling plates, and the plurality of vapor-liquid two-phase flow cooling plates are connected with the first cold energy distribution module and the third cold energy distribution module.

10. A cooling micro-module device, characterized by A two-phase cooling system comprising the two-phase cooling system of any one of claims 1-9.

11. A data center, characterized by, A two-phase cooling system comprising the two-phase cooling system of any one of claims 1-9.

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