Liquid cooling system and data center
By introducing a negative pressure source and a parallel structure of the liquid storage tank into the liquid cooling system, a negative pressure state is formed, which solves the problem of equipment damage caused by coolant leakage and ensures the stable operation and cooling effect of the data center.
Patent Information
- Application Number
- CN202422727349.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-11-08
AI Technical Summary
When a traditional liquid cooling system is a positive pressure liquid cooling system, coolant leakage can damage electronic components, affecting the normal operation of the data center, and the maintenance cost is high.
The liquid cooling system driven by a negative pressure source connects to the liquid storage tanks via a negative pressure component. The liquid storage tanks include a high-temperature liquid storage tank and a low-temperature liquid storage tank, which are connected in parallel. The piping components form a loop, and the cold plate is installed on the second piping to ensure that the entire system is under negative pressure and to prevent coolant leakage.
This ensures stable coolant flow, preventing damage to data modules caused by coolant leakage and guaranteeing the normal operation and cooling effect of the data center.
Smart Images
Figure CN223681367U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of data processing equipment, in particular to a liquid cooling system and a data center. BACKGROUND
[0002] In high-performance computing and big data processing applications, computer equipment and data centers have increasingly high heat dissipation requirements. Traditional air cooling systems have faced the challenge of insufficient heat dissipation. Liquid cooling systems can achieve high-density heat dissipation in data centers, greatly improving heat dissipation efficiency and energy utilization. It can quickly remove heat by combining the liquid cooling system with the cold and hot channels of the data center, reducing the temperature of the data center, maintaining the stability of the equipment operation, and reducing energy consumption.
[0003] Traditional liquid cooling systems are usually positive pressure liquid cooling systems, that is, the liquid pressure inside the pipeline is greater than the ambient pressure outside the pipeline. When the pipeline is perforated due to corrosion or other reasons, the liquid inside the pipeline will leak onto the electronic components from the perforation, causing damage to the electronic components, which may cause the equipment to be damp, short-circuited, corroded, etc., resulting in equipment damage, affecting the normal operation of the data center, and thus causing data loss, inconvenience to users, and possible economic losses. Moreover, equipment damage requires repair or replacement, which will incur additional costs and time consumption, and the data center needs to invest manpower and financial resources to repair or replace the equipment to restore normal operation. CONTENT OF THE UTILITY MODEL
[0004] Therefore, it is necessary to provide a liquid cooling system and a data center to solve the problem of cooling liquid leakage caused by the positive pressure liquid cooling system of the current liquid cooling system farm. The entire system can be in a negative pressure state, which can avoid damage to the data module caused by cooling liquid leakage and ensure the normal operation of the data center. At the same time, it can also ensure the stable flow of the cooling liquid and avoid fluctuations.
[0005] A liquid cooling system includes a negative pressure source, a heat exchanger, a negative pressure assembly, a pipeline assembly, a cold plate, and multiple groups of liquid storage tanks. Each group of liquid storage tanks includes a high-temperature liquid storage tank and a low-temperature liquid storage tank. Each high-temperature liquid storage tank is connected in parallel, and each low-temperature liquid storage tank is connected in parallel.
[0006] One end of the negative pressure assembly is connected to the negative pressure source, and the other end is connected to each high-temperature liquid storage tank and each low-temperature liquid storage tank. The pipeline assembly includes a first pipeline and a second pipeline. One end of the first pipeline is connected to the output end of each high-temperature liquid storage tank, and the other end of the first pipeline is connected to the input end of each low-temperature liquid storage tank. One end of the second pipeline is connected to the output end of each low-temperature liquid storage tank, and the other end of each second pipeline is connected to the input end of each high-temperature liquid storage tank. The heat exchanger is connected in parallel with the first pipeline for heat exchange, and the cold plate is arranged in the second pipeline.
[0007] In an embodiment of the present application, the negative pressure assembly comprises a plurality of suction pipelines, one end of each of the plurality of suction pipelines is connected to the negative pressure source, and the other end of each of the plurality of suction pipelines is connected to the high-temperature liquid storage tank and the low-temperature liquid storage tank respectively.
[0008] The negative pressure assembly further comprises a vacuum adjusting member, and each of the suction pipelines is provided with the vacuum adjusting member. The vacuum adjusting member is used to control the suction pipeline to suck negative pressure from the high-temperature liquid storage tank and the low-temperature liquid storage tank.
[0009] In an embodiment of the present application, the pipeline assembly further comprises a high-temperature input pipeline, a high-temperature output pipeline, a low-temperature input pipeline, and a low-temperature output pipeline. The high-temperature input pipeline is arranged at the input end of the high-temperature liquid storage tank and connected to the second pipeline. The high-temperature output pipeline is arranged at the output end of the high-temperature liquid storage tank and connected to the first pipeline. The low-temperature input pipeline is arranged at the input end of the low-temperature liquid storage tank and connected to the first pipeline. The low-temperature output pipeline is arranged at the output end of the low-temperature liquid storage tank and connected to the second pipeline.
[0010] In an embodiment of the present application, the liquid cooling system further comprises a high-temperature adjusting member and a low-temperature adjusting member. The high-temperature adjusting member is arranged between the high-temperature input pipeline and the high-temperature output pipeline. The high-temperature adjusting member is used to adjust the inflow and outflow state of the cooling liquid in the high-temperature liquid storage tank. The low-temperature adjusting member is arranged between the low-temperature input pipeline and the low-temperature output pipeline. The low-temperature adjusting member is used to adjust the inflow and outflow state of the cooling liquid in the low-temperature liquid storage tank.
[0011] In an embodiment of the present application, the liquid cooling system further comprises a plurality of liquid level meters. Each of the high-temperature liquid storage tanks is provided with a liquid level meter, and each of the low-temperature liquid storage tanks is provided with a liquid level meter. The liquid level meter is used to provide a liquid level signal in the liquid storage tank.
[0012] In an embodiment of the present application, the liquid cooling system further comprises a plurality of pressure measuring members. Each of the high-temperature liquid storage tanks is provided with a pressure measuring member, and each of the low-temperature liquid storage tanks is provided with a pressure measuring member. The pressure measuring member is used to provide a pressure signal in the liquid storage tank.
[0013] In an embodiment of the present application, the liquid cooling system further comprises a leak detection member. The leak detection member is arranged in the first pipeline and / or the second pipeline. The leak detection member is used to determine whether there is liquid leakage.
[0014] In an embodiment of the present application, the liquid cooling system comprises a plurality of cold plates. The plurality of cold plates are arranged in parallel and arranged in the second pipeline.
[0015] In an embodiment of the present application, the liquid cooling system comprises two groups of the liquid storage tanks, each group of the liquid storage tanks comprising a first high-temperature liquid storage tank, a first low-temperature liquid storage tank, a second high-temperature liquid storage tank, and a second low-temperature liquid storage tank, one end of the first pipeline being connected to the output ends of the first and second high-temperature liquid storage tanks, the other end of the first pipeline being connected to the input ends of the first and second low-temperature liquid storage tanks, one end of the second pipeline being connected to the output ends of the first and second low-temperature liquid storage tanks, the other end of the second pipeline being connected to the input ends of the first and second high-temperature liquid storage tanks.
[0016] A data center comprising a plurality of data modules and the liquid cooling system according to any one of the technical features described above, each of the data modules corresponding to at least one liquid cooling system, the liquid cooling system being used to cool the data module.
[0017] After adopting the technical scheme described above, the present application has at least the following technical effects:
[0018] The liquid cooling system and the data center of the present application, in the liquid cooling system, the negative pressure source drives the cooling liquid in the high-temperature liquid storage tank and the low-temperature liquid storage tank to flow through the negative pressure assembly. The high-temperature liquid storage tanks and the low-temperature liquid storage tanks are connected in parallel, the pipeline assembly forms a loop, the first pipeline connects the output ends of the high-temperature liquid storage tanks and the input ends of the low-temperature liquid storage tanks, the second pipeline connects the output ends of the low-temperature liquid storage tanks and the input ends of the high-temperature liquid storage tanks, the heat exchanger is connected in parallel with the first pipeline, and the cold plate is arranged in the second pipeline. After the cooling liquid in one group of high-temperature liquid storage tanks exchanges heat with the heat exchanger, the cooling liquid is stored into one group of low-temperature liquid storage tanks through the first pipeline. The cooling liquid in one group of low-temperature liquid storage tanks enters the cold plate through the second pipeline to cool the data module, and then the cooling liquid enters another group of high-temperature liquid storage tanks through the second pipeline.
[0019] The liquid cooling system, by adopting multiple groups of liquid storage tanks, realizes the circulating delivery of the cooling liquid, the cooling liquid in one group of high-temperature liquid storage tanks is stored into another group of low-temperature liquid storage tanks after being cooled, and the cooling liquid in one group of low-temperature liquid storage tanks returns to another group of high-temperature liquid storage tanks after being cooled by the cold plate, through the cross-circulating delivery of the multiple groups of high-temperature liquid storage tanks and the multiple groups of low-temperature liquid storage tanks, the stable operation of the cooling liquid in the liquid cooling plate is ensured, and then the cooling effect is ensured. At the same time, the liquid cooling system draws negative pressure on the working high-temperature liquid storage tank and the low-temperature liquid storage tank through the negative pressure source, so that the entire pipeline assembly is in a state of negative pressure, avoiding leakage of the pipeline assembly. In this way, damage of the data module caused by leakage of the cooling liquid can be avoided, and normal operation of the data center is ensured. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 The schematic diagram of the liquid cooling system of an embodiment of the present application.
[0021] Figure 2 Fig. 1 is a schematic diagram of a liquid cooling system according to an embodiment of the present application. Figure 1 Fig. 2 is a schematic diagram of the liquid cooling system shown in Fig. 1 in a first operating condition.
[0022] Figure 3 Fig. 3 is a schematic diagram of the liquid cooling system shown in Fig. 1 in a second operating condition. Figure 1 Fig. 4 is a schematic diagram of the liquid cooling system shown in Fig. 1 switching from the first operating condition to the second operating condition.
[0023] Figure 4 Fig. 5 is a schematic diagram of the liquid cooling system shown in Fig. 1 switching from the second operating condition to the first operating condition. Figure 2 Fig. 6 is a schematic diagram of a liquid cooling system A according to an embodiment of the present application.
[0024] Figure 5 Fig. 7 is a schematic diagram of the liquid cooling system A shown in Fig. 6 in a first operating condition. Figure 3 Fig. 8 is a schematic diagram of the liquid cooling system A shown in Fig. 6 in a second operating condition.
[0025] Wherein: A, liquid cooling system; 10, negative pressure source; 20, heat exchanger; 210, heat exchange pipeline; 30, negative pressure assembly; 310, first suction pipeline; 320, second suction pipeline; 330, third suction pipeline; 340, fourth suction pipeline; 40, pipeline assembly; 410, first pipeline; 411, first end; 412, second end; 420, second pipeline; 421, third end; 422, fourth end; 431, first high-temperature input pipe; 432, second high-temperature input pipe; 441, first high-temperature output pipe; 442, second high-temperature output pipe; 451, first low-temperature input pipe; 452, second low-temperature input pipe; 461, first low-temperature output pipe; 462, second low-temperature output pipe; 50, cold plate; 60, liquid storage tank; 610, high-temperature liquid storage tank; 611, first high-temperature liquid storage tank; 612, second high-temperature liquid storage tank; 620, low-temperature liquid storage tank; 621, first low-temperature liquid storage tank; 622, second low-temperature liquid storage tank; 70, leak detection element; V1, first vacuum regulating element; V2, second vacuum regulating element; V3, third vacuum regulating element; V4, fourth vacuum regulating element; H1, first high-temperature regulating element; H2, second high-temperature regulating element; H3, third high-temperature regulating element; H4, fourth high-temperature regulating element; L1, first low-temperature regulating element; L2, second low-temperature regulating element; L3, third low-temperature regulating element; L4, fourth low-temperature regulating element; Le1, first liquid level meter; Le2, second liquid level meter; Le3, third liquid level meter; Le4, fourth liquid level meter; P1, first pressure measuring element; P2, second pressure measuring element; P3, third pressure measuring element; P4, fourth pressure measuring element. DETAILED DESCRIPTION
[0026] 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.
[0027] 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.
[0028] 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 explicitly or implicitly include at least one of the features. 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 specifically limited.
[0029] In the present application, unless otherwise specifically defined 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 specifically 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.
[0030] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0031] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, 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 possible implementation.
[0032] See Figure 1 This application provides a liquid cooling system A. This liquid cooling system A is applied in a data center to cool the data modules, thereby reducing the heat generated during data module operation, lowering the data center temperature, and ensuring the stability of data center operation. Figure 1 This is a schematic diagram of a liquid cooling system A according to an embodiment of this application. This application only describes the application of liquid cooling system A in a data center as an example. Of course, in other embodiments of this application, the liquid cooling system A can also cool other equipment with high heat generation or requiring cooling, which will not be elaborated upon here.
[0033] Understandably, traditional liquid cooling systems are typically positive pressure systems. When pipes perforate due to corrosion or other reasons, the liquid inside leaks from the perforation onto electronic components, causing damage. This can lead to moisture ingress, short circuits, corrosion, and ultimately, equipment failure, affecting the normal operation of the data center. Therefore, this application provides a novel liquid cooling system A that maintains the entire system under negative pressure. This prevents damage to data modules caused by coolant leakage, ensuring the normal operation of the data center, while also ensuring stable coolant flow and preventing fluctuations. The specific structure of the liquid cooling device in one embodiment is described below.
[0034] See Figure 1In an embodiment, the liquid cooling system A comprises a negative pressure source 10, a heat exchanger 20, a negative pressure assembly 30, a pipeline assembly 40, a cold plate 50, and a plurality of groups of liquid storage tanks 60, each group of liquid storage tanks 60 comprising a high-temperature liquid storage tank 610 and a low-temperature liquid storage tank 620, each high-temperature liquid storage tank 610 being connected in parallel, and each low-temperature liquid storage tank 620 being connected in parallel. One end of the negative pressure assembly 30 is connected to the negative pressure source 10, and the other end is connected to each high-temperature liquid storage tank 610 and each low-temperature liquid storage tank 620, respectively. The pipeline assembly 40 comprises a first pipeline 410 and a second pipeline 420. One end of the first pipeline 410 is connected to the output end of each high-temperature liquid storage tank 610, and the other end of the first pipeline 410 is connected to the input end of each low-temperature liquid storage tank 620. One end of the second pipeline 420 is connected to the output end of each low-temperature liquid storage tank 620, and the other end of each second pipeline 420 is connected to the input end of each high-temperature liquid storage tank 610. The heat exchanger 20 is connected in parallel with the first pipeline 410 for heat exchange, and the cold plate 50 is arranged in the second pipeline 420.
[0035] The negative pressure source 10 is a power source for the entire liquid cooling system A, and provides power for the flow of the cooling liquid to drive the flow of the cooling liquid in the liquid cooling system A. Moreover, the negative pressure source 10 can also provide a negative pressure ring for the entire liquid cooling system A to avoid leakage of the cooling liquid. Once the cooling liquid leaks, the negative pressure of the negative pressure source 10 can cause the cooling liquid to flow back to the liquid storage tank 60. In this way, the addition of the negative pressure source 10 in the liquid cooling system A can avoid the leakage of the cooling liquid, thereby avoiding damage to the data module caused by the leakage of the cooling liquid and ensuring the normal operation of the data center. Optionally, the negative pressure source 10 is a negative pressure pump or other power source capable of generating negative pressure.
[0036] In the liquid storage tank 60, the high-temperature liquid storage tank 610 is used to store the cooling liquid after heat absorption, and the low-temperature liquid storage tank 620 is used to store the cooling liquid after heat exchange. The pipeline assembly 40 connects the high-temperature liquid storage tank 610, the low-temperature liquid storage tank 620, and the cold plate 50, and is connected in parallel with the heat exchanger 20 for heat exchange. The cold plate 50 has flowing cooling liquid to cool the data module. The heat exchanger 20 can exchange heat with the cooling liquid in the high-temperature liquid storage tank 610 to lower the temperature of the cooling liquid, so that the cooling liquid can cool the cold plate 50. The cooling liquid in the high-temperature liquid storage tank 610 exchanges heat with the heat exchanger 20 through the pipeline assembly 40 to form low-temperature cooling liquid, which enters the low-temperature liquid storage tank 620 through the pipeline assembly 40 and is stored in the low-temperature liquid storage tank 620. Subsequently, the low-temperature cooling liquid enters the cold plate 50 through the pipeline assembly 40 from the low-temperature liquid storage tank 620, and cools the data module through the cold plate 50. After the cooling liquid absorbs the heat emitted by the data module, it returns to the high-temperature liquid storage tank 610 through the pipeline assembly 40, and the circulation of the cooling liquid is realized in this way.
[0037] The number of the liquid storage tanks 60 is multiple groups, the high-temperature liquid storage tanks 610 in each group of the liquid storage tanks 60 are connected in parallel, and the low-temperature liquid storage tanks 620 in each group of the liquid storage tanks 60 are connected in parallel. The cooperation of the multiple groups of the high-temperature liquid storage tanks 610 and the multiple groups of the low-temperature liquid storage tanks 620 realizes the separate flow of the cooling liquid, meets the cooling demand, and can also buffer the cooling liquid to avoid the situation of insufficient supply of the cooling liquid, so as to ensure the stability of the flow of the cooling liquid. Exemplarily, the number of the liquid storage tanks 60 is two groups, each group includes two high-temperature liquid storage tanks 610 and two low-temperature liquid storage tanks 620. Of course, in other embodiments of the present application, the number of the liquid storage tanks 60 can also be more groups, which will not be described here.
[0038] For the convenience of description, it is assumed that the first pipeline 410 has a first end 411 and a second end 412 arranged oppositely, and the second pipeline 420 has a third end 421 and a fourth end 422 arranged oppositely. The first end 411 of the first pipeline 410 is connected to the output end of each high-temperature liquid storage tank 610, the second end 412 of the first pipeline 410 is connected to the input end of each low-temperature liquid storage tank 620, the third end 421 of the second pipeline 420 is connected to the output end of each low-temperature liquid storage tank 620, and the fourth end 422 of each second pipeline 420 is connected to the input end of each high-temperature liquid storage tank 610. Moreover, the heat exchanger 20 is connected in parallel with the second pipeline 420, and the cold plate 50 is arranged in the first pipeline 410. Here, the input end and the output end are based on the flow direction of the cooling liquid, the cooling liquid flowing in is the input end, and the cooling liquid flowing out is the output end.
[0039] When the negative pressure source 10 works, the negative pressure source 10 draws negative pressure on the working high-temperature liquid storage tank 610 and the low-temperature liquid storage tank 620 of another group, so that the cooling liquid flows between the high-temperature liquid storage tank 610 and the low-temperature liquid storage tank 620. In the heat exchange cycle, the cooling liquid in one group of the high-temperature liquid storage tanks 610 enters the first pipeline 410 through the output end, and then exchanges heat with the heat exchanger 20 in the first pipeline 410. After heat exchange, the cooling liquid enters another group of the low-temperature liquid storage tanks 620 through the input end in the first pipeline 410. In the cooling cycle, the low-temperature cooling liquid stored in one group of the low-temperature liquid storage tanks 620 enters the second pipeline 420 through the output end, and then enters the cold plate 50 to cool the data module. The cooled cooling liquid flows back to another group of the high-temperature liquid storage tanks 610 through the input end in the second pipeline 420. Such circulation can realize the circulation of the cooling liquid. When it is necessary to switch the working condition, the high-temperature liquid storage tank 610 is switched, and the low-temperature liquid storage tank 620 is switched. The specific switching method will be described below.
[0040] The cold plate 50 is arranged on the second pipeline 420, and an inner cavity of the cold plate 50 communicates with the second pipeline 420, so that the cooling liquid in the second pipeline 420 can enter the cold plate 50 to cool the data module by the cold plate 50. The cooling liquid after absorbing heat flows back to the second pipeline 420 through the cold plate 50. The heat exchanger 20 is arranged in the first pipeline 410, and the heat exchanger 20 is provided with a heat exchange pipeline 210 in which heat exchange liquid flows. The heat exchange pipeline 210 is connected in parallel with the second pipeline 420, so that the liquid in the heat exchange pipeline 210 can absorb the heat of the cooling liquid in the second pipeline 420 to reduce the problem of the cooling liquid, and the liquid after absorbing heat in the heat exchange pipeline 210 can be cooled by the cold source or can be dissipated in the external environment, which will not be mentioned again.
[0041] The liquid cooling system A of the above embodiment adopts multiple groups of liquid storage tanks 60 to realize the circulating delivery of the cooling liquid. The cooling liquid of a high-temperature liquid storage tank 610 of one group is stored in a low-temperature liquid storage tank 620 of another group after being cooled. The cooling liquid in the low-temperature liquid storage tank 620 of one group returns to the high-temperature liquid storage tank 610 of another group after being cooled to the cold plate 50. The cooling liquid is delivered by the cross circulation of the multiple groups of high-temperature liquid storage tanks 610 and the multiple groups of low-temperature liquid storage tanks 620 to ensure the stable operation of the cooling liquid in the liquid cold plate 50 and further ensure the cooling effect. At the same time, the liquid cooling system A draws negative pressure on the working high-temperature liquid storage tank 610 and the low-temperature liquid storage tank 620 by the negative pressure source 10, so that the entire pipeline assembly 40 is in a state of negative pressure, avoiding leakage of the pipeline assembly 40. In this way, damage of the data module caused by leakage of the cooling liquid can be avoided, and normal operation of the data center can be ensured.
[0042] Referring to Figure 1 In the embodiment, the liquid cooling system A includes two groups of liquid storage tanks 60, and each group of liquid storage tanks 60 includes a first high-temperature liquid storage tank 611, a first low-temperature liquid storage tank 621, a second high-temperature liquid storage tank 612 and a second low-temperature liquid storage tank 622. The first end 411 of the first pipeline 410 is connected to the output ends of the first high-temperature liquid storage tank 611 and the second high-temperature liquid storage tank 612. The second end 412 of the first pipeline 410 is connected to the input ends of the first low-temperature liquid storage tank 621 and the second low-temperature liquid storage tank 622. The third end 421 of the second pipeline 420 is connected to the output ends of the first low-temperature liquid storage tank 621 and the second low-temperature liquid storage tank 622. The fourth end 422 of the second pipeline 420 is connected to the input ends of the first high-temperature liquid storage tank 611 and the second high-temperature liquid storage tank 612.
[0043] As shown in Figure 2 and Figure 3 , the liquid cooling system A has two operating conditions, namely a first operating condition and a second operating condition. Figure 2 As shown in Figure 1 , the liquid cooling system A in the first operating condition is shown in the schematic view, Figure 3 As shown in Figure 1The liquid cooling system A shown is in the second operating condition. In the first operating condition, the first high-temperature liquid tank 611 inputs cooling liquid, the second high-temperature liquid tank 612 outputs cooling liquid, the first low-temperature liquid tank 621 inputs cooling liquid, and the second low-temperature liquid tank 622 outputs cooling liquid, and the cooling liquid flows along the arrow direction shown. Figure 2 In the second operating condition, the first high-temperature liquid tank 611 outputs cooling liquid, the second high-temperature liquid tank 612 inputs cooling liquid, the first low-temperature liquid tank 621 outputs cooling liquid, and the second low-temperature liquid tank 622 inputs cooling liquid, and the cooling liquid flows along the arrow direction shown. Figure 3
[0044] As shown in FIGS. 1 and 2, the liquid cooling system A includes a plurality of liquid tanks 60, a plurality of cooling plates 50, a plurality of heat exchange pipes 40, and a plurality of liquid pipes 30. Figure 1 Figure 2 As shown in FIGS. 1 and 2, the liquid cooling system A includes a plurality of liquid tanks 60, a plurality of cooling plates 50, a plurality of heat exchange pipes 40, and a plurality of liquid pipes 30. Figure 1 Figure 3 As shown in FIGS. 1 and 2, the liquid cooling system A includes a plurality of liquid tanks 60, a plurality of cooling plates 50, a plurality of heat exchange pipes 40, and a plurality of liquid pipes 30.
[0045] Of course, in other embodiments of the present application, the number of liquid tanks 60 can also be more groups, and the arrangement principle is substantially the same as that of the two groups of liquid tanks 60, which will not be described here.
[0046] As shown in FIGS. 1 and 2, the liquid cooling system A includes a plurality of liquid tanks 60, a plurality of cooling plates 50, a plurality of heat exchange pipes 40, and a plurality of liquid pipes 30. Figures 1 to 3 In an embodiment, the negative pressure assembly 30 includes a plurality of suction pipes, one end of the plurality of suction pipes is connected to the negative pressure source 10, and the other end of the plurality of suction pipes is respectively connected to each high-temperature liquid tank 610 and low-temperature liquid tank 620. The negative pressure source 10 performs negative pressure suction on the high-temperature liquid tank 610 and the low-temperature liquid tank 620 through the suction pipe to drive the cooling liquid in the high-temperature liquid tank 610 and the low-temperature liquid tank 620 to flow, and at the same time, the entire system can be in a negative pressure state to avoid cooling liquid leakage.
[0047] The number of suction pipes is equal to the number of high-temperature liquid storage tanks 610 and low-temperature liquid storage tanks 620. Each high-temperature liquid storage tank 610 corresponds to one suction pipe, and each low-temperature liquid storage tank 620 corresponds to one suction pipe. When the negative pressure source 10 is working, the negative pressure source 10 controls the suction pipes to draw negative pressure from each high-temperature liquid storage tank 610 and each low-temperature liquid storage tank 620. When the negative pressure source 10 draws negative pressure from the high-temperature liquid storage tanks 610 and the low-temperature liquid storage tanks 620, at least one output cooling liquid and at least one input cooling liquid in each high-temperature liquid storage tank 610, and at least one input cooling liquid and at least one output cooling liquid in each low-temperature liquid storage tank 620.
[0048] For example, the negative pressure assembly 30 includes four suction pipes, namely a first suction pipe 310, a second suction pipe 320, a third suction pipe 330, and a fourth suction pipe 340. One end of the first suction pipe 310 is connected to the first high-temperature liquid storage tank 611, and one end of the second suction pipe 320 is connected to one end of the first low-temperature liquid storage tank 621. One end of the first suction pipe 310 is connected to the first high-temperature liquid storage tank 611, and one end of the second suction pipe 320 is connected to one end of the first low-temperature liquid storage tank 621. The other ends of the first suction pipe 310, the second suction pipe 320, the third suction pipe 330, and the fourth suction pipe 340 are connected to the negative pressure source 10.
[0049] In the first operating condition, the negative pressure source 10 controls the first suction pipe 310 to draw negative pressure from the first high-temperature liquid storage tank 611 and controls the second suction pipe 320 to draw negative pressure from the first low-temperature liquid storage tank 621, and the second high-temperature liquid storage tank 612 and the second low-temperature liquid storage tank 622 are not subjected to the negative pressure operation. In the second operating condition, the negative pressure source 10 controls the third suction pipe 330 to draw negative pressure from the second high-temperature liquid storage tank 612 and controls the fourth suction pipe 340 to draw negative pressure from the third low-temperature liquid storage tank 620, and the first high-temperature liquid storage tank 611 and the first low-temperature liquid storage tank 621 are not subjected to the negative pressure operation.
[0050] Referring to Figures 1 to 3 In an embodiment, the negative pressure assembly 30 further includes a vacuum adjusting member, and each suction pipe is provided with a vacuum adjusting member. The vacuum adjusting member is used to control whether the suction pipe draws negative pressure from the high-temperature liquid storage tank 610 or the low-temperature liquid storage tank 620. The vacuum adjusting member is arranged on the suction pipe, and the opening and closing of the suction pipe are controlled by the vacuum adjusting member. When the vacuum adjusting member is opened, the suction pipe is connected between the negative pressure source 10 and the high-temperature liquid storage tank 610 or the low-temperature liquid storage tank 620, and the negative pressure operation can be performed. When the vacuum adjusting member is closed, the suction pipe is not connected between the negative pressure source 10 and the high-temperature liquid storage tank 610 or the low-temperature liquid storage tank 620, and the negative pressure operation cannot be performed. Optionally, the vacuum adjusting member is a vacuum adjusting valve or a switch.
[0051] For example, the vacuum regulating components include a first vacuum regulating component V1, a second vacuum regulating component V2, a third vacuum regulating component V3, and a fourth vacuum regulating component V4. The first vacuum regulating component V1 is disposed in the first suction pipe 310, the second vacuum regulating component V2 is disposed in the second suction pipe 320, the third vacuum regulating component V3 is disposed in the third suction pipe 330, and the fourth vacuum regulating component V4 is disposed in the fourth suction pipe 340. When the first vacuum regulating component V1 and the second vacuum regulating component V2 are opened, the first suction pipe 310 and the second suction pipe 320 are subjected to negative pressure, such as... Figure 2 As shown. When the third vacuum regulator V3 and the fourth vacuum regulator V4 are opened, the third suction line 330 and the fourth suction line 340 draw negative pressure, as... Figure 3 As shown. It is worth noting that black indicates the adjustment is open, a point that will not be mentioned again later.
[0052] See Figures 1 to 3 In one embodiment, the piping assembly 40 further includes a high-temperature input pipe, a high-temperature output pipe, a low-temperature input pipe, and a low-temperature output pipe. The high-temperature input pipe is disposed at the input end of the high-temperature storage tank 610 and connected to the second pipe 420. The high-temperature output pipe is disposed at the output end of the high-temperature storage tank 610 and connected to the first pipe 410. The low-temperature input pipe is disposed at the input end of the low-temperature storage tank 620 and connected to the first pipe 410. The low-temperature output pipe is disposed at the output end of the low-temperature storage tank 620 and connected to the second pipe 420.
[0053] The high-temperature output pipe connects the high-temperature storage tank 610 to the first end 411 of the first pipeline 410 at the input end of the high-temperature storage tank 610. The high-temperature input pipe connects the high-temperature storage tank 610 to the fourth end 422 of the second pipeline 420 at the input end of the high-temperature storage tank 610. The low-temperature output pipe connects the low-temperature storage tank 620 to the third end 421 of the second pipeline 420 at the output end of the low-temperature storage tank 620. The low-temperature input pipe connects the low-temperature storage tank 620 to the second end 412 of the first pipeline 410 at the input end of the low-temperature storage tank 620. This allows all high-temperature storage tanks 610 and all low-temperature storage tanks 620 to be connected in parallel between the first pipeline 410 and the second pipeline 420. This facilitates the flow of coolant from each high-temperature storage tank 610 into the first pipeline 410 and vice versa.
[0054] In the embodiment, the high-temperature input pipe includes a first high-temperature input pipe 431 and a second high-temperature input pipe 432, the high-temperature output pipe includes a first high-temperature output pipe 441 and a second high-temperature output pipe 442, the low-temperature input pipe includes a first low-temperature input pipe 451 and a second low-temperature input pipe 452, and the low-temperature output pipe includes a first low-temperature output pipe 461 and a second low-temperature output pipe 462. The first high-temperature output pipe 441 connects the output end of the first high-temperature liquid tank 611 to the first end 411 of the first pipe 410, and the second high-temperature output pipe 442 connects the output end of the second high-temperature liquid tank 612 to the first end 411 of the first pipe 410. In this way, the cooling liquid in the first high-temperature liquid tank 611 enters the first pipe 410 through the first high-temperature output pipe 441, and the cooling liquid in the second high-temperature liquid tank 612 enters the first pipe 410 through the second high-temperature output pipe 442.
[0055] The first high-temperature input pipe 431 connects the output end of the first high-temperature liquid tank 611 to the fourth end 422 of the second pipe 420, and the second high-temperature output pipe 442 connects the output end of the second high-temperature liquid tank 612 to the fourth end 422 of the second pipe 420. In this way, the cooling liquid in the second pipe 420 enters the first high-temperature liquid tank 611 through the first high-temperature input pipe 431, and the cooling liquid in the second pipe 420 enters the second high-temperature liquid tank 612 through the second high-temperature input pipe 432. The first low-temperature input pipe 451 connects the input end of the first low-temperature liquid tank 621 to the second end 412 of the first pipe 410, and the second low-temperature input pipe 452 connects the input end of the second low-temperature liquid tank 622 to the second end 412 of the first pipe 410. In this way, the cooling liquid in the first pipe 410 enters the first low-temperature liquid tank 621 through the first low-temperature input pipe 451, and the cooling liquid in the first pipe 410 enters the second low-temperature liquid tank 622 through the second low-temperature input pipe 452. The first low-temperature output pipe 461 connects the input end of the first low-temperature liquid tank 621 to the third end 421 of the second pipe 420, and the second low-temperature output pipe 462 connects the input end of the second low-temperature liquid tank 622 to the third end 421 of the second pipe 420. In this way, the cooling liquid in the first low-temperature liquid tank 621 enters the second pipe 420 through the first low-temperature output pipe 461, and the cooling liquid in the second low-temperature liquid tank 622 enters the second pipe 420 through the second low-temperature output pipe 462.
[0056] Referring to Figures 1 to 3 In an embodiment, the liquid cooling system A further includes a high-temperature adjusting member and a low-temperature adjusting member. The high-temperature adjusting member is arranged on the high-temperature input pipe and the high-temperature output pipe, and is used to adjust the inflow and outflow state of the cooling liquid in the high-temperature liquid tank 610. The low-temperature adjusting member is arranged on the low-temperature input pipe and the low-temperature output pipe, and is used to adjust the inflow and outflow state of the cooling liquid in the low-temperature liquid tank 620.
[0057] The high-temperature adjusting member can adjust the opening and closing state of the high-temperature input pipe and the high-temperature output pipe. When the high-temperature adjusting member is opened, the cooling liquid can flow into and out of the high-temperature storage tank 610 through the high-temperature input pipe and the high-temperature output pipe. The low-temperature adjusting member can adjust the opening and closing state of the low-temperature input pipe and the low-temperature output pipe. When the low-temperature adjusting member is opened, the cooling liquid can flow into and out of the low-temperature storage tank 620 through the low-temperature input pipe and the low-temperature output pipe. Optionally, the high-temperature adjusting member is a high-temperature adjusting valve or a switch, and the low-temperature adjusting member is an adjusting valve or a switch.
[0058] In this embodiment, the high-temperature adjusting member includes a first high-temperature adjusting member H1, a second high-temperature adjusting member H2, a third high-temperature adjusting member H3, and a fourth high-temperature adjusting member H4. The first high-temperature adjusting member H1 is arranged on the first high-temperature output pipe 441, the second high-temperature adjusting member H2 is arranged on the first high-temperature input pipe 431, the third high-temperature adjusting member H3 is arranged on the second high-temperature output pipe 442, and the fourth high-temperature adjusting member H4 is arranged on the second high-temperature input pipe 432. When the first high-temperature adjusting member H1 and the third high-temperature adjusting member H3 are opened, the cooling liquid flows out of the first high-temperature storage tank 611 and the second high-temperature storage tank 612. When the second high-temperature adjusting member H2 and the fourth high-temperature adjusting member H4 are opened, the cooling liquid flows into the first high-temperature storage tank 611 and the second high-temperature storage tank 612.
[0059] The low-temperature adjusting member includes a first low-temperature adjusting member L1, a second low-temperature adjusting member L2, a third low-temperature adjusting member L3, and a fourth low-temperature adjusting member L4. The first low-temperature adjusting member L1 is arranged on the first low-temperature input pipe 451, the second low-temperature adjusting member L2 is arranged on the first low-temperature output pipe 461, the third low-temperature adjusting member L3 is arranged on the second low-temperature input pipe 452, and the fourth low-temperature adjusting member L4 is arranged on the second low-temperature output pipe 462. When the first low-temperature adjusting member L1 and the third low-temperature adjusting member L3 are opened, the cooling liquid flows into the first low-temperature storage tank 621 and the second low-temperature storage tank 622. When the second low-temperature adjusting member L2 and the fourth low-temperature adjusting member L4 are opened, the cooling liquid flows out of the first low-temperature storage tank 621 and the second low-temperature storage tank 622.
[0060] Referring to Figures 1 to 3 In an embodiment, the liquid cooling system A further includes a plurality of liquid level meters. Each high-temperature storage tank 610 is provided with a liquid level meter, and each low-temperature storage tank 620 is provided with a liquid level meter. The liquid level meters are used to provide liquid level signals in the storage tanks 60. The liquid level meters are arranged in the high-temperature storage tanks 610 and the low-temperature storage tanks 620 and can extend into the high-temperature storage tanks 610 and the low-temperature storage tanks 620 to detect the liquid level height and provide liquid level signals for controlling the opening or closing of the high-temperature adjusting member and the low-temperature adjusting member.
[0061] The number of liquid level gauges is equal to the number of high-temperature liquid storage tanks 610 and low-temperature liquid storage tanks 620. The liquid level gauges are used to detect the liquid level of the coolant in each high-temperature liquid storage tank 610 and low-temperature liquid storage tank 620, so as to prevent the coolant from overflowing or the liquid level from being too low, and ensure that the liquid cooling system A can operate stably.
[0062] For example, the plurality of liquid level gauges include a first liquid level gauge Le1, a second liquid level gauge Le2, a third liquid level gauge Le3, and a fourth liquid level gauge Le4. The first liquid level gauge Le1 is arranged on the first high-temperature liquid storage tank 611, the second liquid level gauge Le2 is arranged on the first low-temperature liquid storage tank 621, the third liquid level gauge Le3 is arranged on the second high-temperature liquid storage tank 612, and the fourth liquid level gauge Le4 is arranged on the second low-temperature liquid storage tank 622. The first liquid level gauge Le1, the second liquid level gauge Le2, the third liquid level gauge Le3, and the fourth liquid level gauge Le4 are used to detect the liquid level of the coolant in each high-temperature liquid storage tank 610 and low-temperature liquid storage tank 620, so as to prevent the coolant from overflowing or the liquid level from being too low.
[0063] Referring to Figures 1 to 3 In an embodiment, the liquid cooling system A further includes a plurality of pressure measuring devices. Each high-temperature liquid storage tank 610 is provided with a pressure measuring device, and each low-temperature liquid storage tank 620 is provided with a pressure measuring device. The pressure measuring devices are used to provide pressure signals in the liquid storage tanks 60. The pressure measuring devices are used to detect the pressure signals in the corresponding high-temperature liquid storage tank 610 or low-temperature liquid storage tank 620, so as to determine the vacuum degree, so as to ensure the negative pressure effect of the liquid cooling system A, thereby preventing the coolant from leaking.
[0064] Alternatively, the pressure measuring devices are pressure gauges. Of course, in other embodiments of the present application, the pressure measuring devices also include pressure sensors or other components capable of detecting pressure. The number of pressure measuring devices is equal to the number of high-temperature liquid storage tanks 610 and low-temperature liquid storage tanks 620, so as to detect the vacuum degree in each high-temperature liquid storage tank 610 and low-temperature liquid storage tank 620, and provide pressure signals.
[0065] For example, the plurality of pressure measuring devices include a first pressure measuring device P1, a second pressure measuring device P2, a third pressure measuring device P3, and a fourth pressure measuring device P4. The first pressure measuring device P1 is arranged on the first high-temperature liquid storage tank 611, the second pressure measuring device P2 is arranged on the first low-temperature liquid storage tank 621, the third pressure measuring device P3 is arranged on the second high-temperature liquid storage tank 612, and the fourth pressure measuring device P4 is arranged on the second low-temperature liquid storage tank 622. The first pressure measuring device P1, the second pressure measuring device P2, the third pressure measuring device P3, and the fourth pressure measuring device P4 are used to detect the vacuum degree in each high-temperature liquid storage tank 610 and low-temperature liquid storage tank 620, so as to provide pressure signals.
[0066] Referring to Figures 1 to 3In one embodiment, the liquid cooling system A further includes a leak detection element 70, which is disposed in the first pipe 410 and / or the second pipe 420. The leak detection element 70 is used to determine whether there is a liquid leak. The leak detection element 70 determines whether a leak has occurred in the first pipe 410 and the second pipe 420 through pressure detection, liquid detection, etc. Optionally, the leak detection element 70 is a pressure gauge or a pressure sensor. When a leak occurs, the pressure value in the first pipe 410 and the second pipe 420 will be lower than the pressure value detected by the pressure detection element. The leak detection element 70 determines whether a leak has occurred by detecting whether the pressure value changes. Exemplarily, the leak detection element 70 is disposed in the second pipe 420. Optionally, the leak detection element 70 may also be a liquid sensor, etc.
[0067] See Figure 1 In one embodiment, the liquid cooling system A includes multiple cold plates 50 arranged in parallel within a second pipeline 420. The parallel arrangement of the cold plates 50 in the second pipeline 420 allows the coolant to flow through each cold plate 50, thereby cooling multiple data modules. After cooling is complete, the coolant flows from the cold plates 50 back into the second pipeline 420 and then returns to the high-temperature storage tank 610.
[0068] See Figures 1 to 5 The operation and switching of the liquid cooling system A, which includes two sets of liquid storage tanks 60, will be explained using this example. The connection between the high-temperature liquid storage tank 610 and the low-temperature liquid storage tank 620 in the liquid storage tanks 60 has been mentioned above and will not be repeated here. Figure 4 for Figure 2 The diagram shown illustrates the switching of the liquid cooling system A from the first operating condition to the second operating condition. Figure 5 for Figure 3 The diagram shown illustrates the switching of the liquid cooling system A from the second operating condition to the first operating condition.
[0069] See Figure 2 When the liquid cooling system A is in the first operating condition, the negative pressure source 10 is in the open state. The first liquid level gauge Le1, the second liquid level gauge Le2, the third liquid level gauge Le3 and the fourth liquid level gauge Le4 provide liquid level signals for each liquid storage tank 60 and control the opening and closing of the first high temperature regulating component H1, the second high temperature regulating component H2, the third high temperature regulating component H3, the fourth high temperature regulating component H4, the first low temperature regulating component L1, the second low temperature regulating component L2, the third low temperature regulating component L3 and the fourth low temperature regulating component L4.
[0070] The first high-temperature liquid storage tank 611 and the first low-temperature liquid storage tank 621 are at a low liquid level, and the second high-temperature liquid storage tank 612 and the second low-temperature liquid storage tank 622 are at a high liquid level. The first vacuum regulating element V1 and the second vacuum regulating element V2 are opened, and the third vacuum regulating element V3 and the fourth vacuum regulating element V4 are closed. The vacuum degrees of the first high-temperature liquid storage tank 611 and the first low-temperature liquid storage tank 621 are greater than those of the second high-temperature liquid storage tank 612 and the second low-temperature liquid storage tank 622. During the entire operation process, the pipeline assembly 40 and the first high-temperature liquid storage tank 611, the second high-temperature liquid storage tank 612, the third high-temperature liquid storage tank 610, and the fourth high-temperature liquid storage tank 610 are in a negative pressure state.
[0071] In the heat exchange cycle, the third high-temperature regulating element H3 and the first low-temperature regulating element L1 are opened, and the cooling liquid in the second high-temperature liquid storage tank 612 can enter the first pipeline 410 through the second high-temperature output pipe 442. When the cooling liquid in the first pipeline 410 flows through the heat exchanger 20, heat exchange can be performed, and the heat-exchanged cooling liquid enters the first low-temperature liquid storage tank 621 through the first low-temperature input pipe 451. The power source in the heat exchange cycle comes from the difference in vacuum degrees between the second high-temperature liquid storage tank 612 and the first low-temperature liquid storage tank 621. In the cooling cycle, the second high-temperature regulating element H2 and the fourth low-temperature regulating element L4 are opened, and the cooling liquid enters the cold plate 50 from the second low-temperature liquid storage tank 622, and then the cooling liquid cools the cold plate 50. The heat-absorbed cooling liquid enters the second pipeline 420 and returns to the first high-temperature liquid storage tank 611 through the first high-temperature input pipe 431. The power source in the heat exchange cycle comes from the difference in vacuum degrees between the first high-temperature liquid storage tank 611 and the second low-temperature liquid storage tank 622.
[0072] Referring to Figure 3 When the liquid cooling system A is in the second operating condition, the negative pressure source 10 is in an open state, the first liquid level gauge Le1, the second liquid level gauge Le2, the third liquid level gauge Le3, and the fourth liquid level gauge Le4 provide liquid level signals of the respective liquid storage tanks 60 and control the opening and closing of the first high-temperature regulating element H1, the second high-temperature regulating element H2, the third high-temperature regulating element H3, the fourth high-temperature regulating element H4, the first low-temperature regulating element L1, the second low-temperature regulating element L2, the third low-temperature regulating element L3, and the fourth low-temperature regulating element L4.
[0073] The first high-temperature liquid storage tank 611 and the first low-temperature liquid storage tank 621 are at a high liquid level, and the second high-temperature liquid storage tank 612 and the second low-temperature liquid storage tank 622 are at a low liquid level. The third vacuum regulating element V3 and the fourth vacuum regulating element V4 are opened, and the first vacuum regulating element V1 and the second vacuum regulating element V2 are closed. The vacuum degrees of the second high-temperature liquid storage tank 612 and the second low-temperature liquid storage tank 622 are greater than those of the first high-temperature liquid storage tank 611 and the first low-temperature liquid storage tank 621. During the entire operation process, the pipeline assembly 40 and the first high-temperature liquid storage tank 611, the second high-temperature liquid storage tank 612, the third high-temperature liquid storage tank 610, and the fourth high-temperature liquid storage tank 610 are in a negative pressure state.
[0074] In the heat exchange cycle, the first high-temperature adjusting member H1 and the third low-temperature adjusting member L3 are opened, and the cooling liquid in the first high-temperature storage tank 611 can enter the first pipeline 410 through the first high-temperature output pipe 441, and heat exchange can be performed when the cooling liquid in the first pipeline 410 flows through the heat exchanger 20. The cooled cooling liquid enters the second low-temperature storage tank 622 through the second low-temperature input pipe 452. The power source in the heat exchange cycle comes from the difference in vacuum degree between the first high-temperature storage tank 611 and the second low-temperature storage tank 622. In the cooling cycle, the fourth high-temperature adjusting member H4 and the second low-temperature adjusting member L2 are opened, the cooling liquid enters the cold plate 50 from the first low-temperature storage tank 621, and then the cooling liquid cools the cold plate 50, and the cooled cooling liquid enters the second pipeline 420 and returns to the second high-temperature storage tank 612 through the second high-temperature input pipe 432. The power source in the heat exchange cycle comes from the difference in vacuum degree between the second high-temperature storage tank 612 and the first low-temperature storage tank 621.
[0075] Referring to Figure 4 When the liquid cooling system A is switched from the first operating condition to the second operating condition, the first vacuum adjusting member V1, the second high-temperature adjusting member H2 and the fourth low-temperature adjusting member L4 are maintained in the open state, the second vacuum adjusting member V2, the first low-temperature adjusting member L1 and the third high-temperature adjusting member H3 are closed, and the third vacuum adjusting member V3, the second low-temperature adjusting member L2 and the fourth high-temperature adjusting member H4 are opened. At this time, the first low-temperature storage tank 621 and the second low-temperature storage tank 622 supply liquid to the cold plate 50 through the difference in vacuum degree, ensuring the stability of liquid supply. After Δt time, the first vacuum adjusting member V1, the second high-temperature adjusting member H2 and the fourth low-temperature adjusting member L4 are closed, the fourth vacuum adjusting member V4, the first high-temperature adjusting member H1 and the third low-temperature adjusting member L3 are opened, and the liquid cooling system A is switched from the first operating condition to the second operating condition.
[0076] Referring to Figure 5 When the liquid cooling system A is switched from the second operating condition to the first operating condition, the third vacuum adjusting member V3, the fourth high-temperature adjusting member H4 and the second low-temperature adjusting member L2 are maintained in the open state, the fourth vacuum adjusting member V4, the first high-temperature adjusting member H1 and the third low-temperature adjusting member L3 are closed, and the first vacuum adjusting member V1, the second high-temperature adjusting member H2 and the fourth low-temperature adjusting member L4 are opened. At this time, the first low-temperature storage tank 621 and the second low-temperature storage tank 622 supply liquid to the cold plate 50 through the difference in vacuum degree, ensuring the stability of liquid supply. After Δt time, the third vacuum adjusting member V3, the fourth high-temperature adjusting member H4 and the second low-temperature adjusting member L2 are closed, the second vacuum adjusting member V2, the third high-temperature adjusting member H3 and the first low-temperature adjusting member L1 are opened, and the liquid cooling system A is switched from the second operating condition to the first operating condition.
[0077] Referring toFigures 1 to 5 The hydraulic system of the present application is in a negative pressure state as a whole, and can avoid leakage of the cooling liquid. When the pipeline assembly 40 leaks, the cooling liquid can flow back to the liquid storage tank 60. Moreover, the present application adopts a structure of two groups of liquid storage tanks 60, i.e., two high-temperature liquid storage tanks 610 and two low-temperature liquid storage tanks 620, and cooperates with system control and time delay Δt switching, to ensure that the cooling liquid in the circulating pipeline of the cold plate 50 stably operates during the switching process. At the same time, the heat exchange pipeline 210 of the heat exchanger 20 is connected in parallel with the circulating pipeline of the cold plate 50, compared with being connected in series with the heat exchanger 20 and the cold plate 50, the vacuum degree for overcoming the flow resistance of the pipelines of the heat exchanger 20 and the cold plate 50 is reduced, to ensure that the liquid cooling system A is maintained at a low vacuum degree, and the pipeline assembly 40 does not need special customized components. Moreover, compared with the submersible pump for pumping the high-temperature cooling liquid to the heat exchanger 20, the liquid cooling system A of the present application does not need to additionally add a pump device, and avoids the pipeline assembly 40 being in a positive pressure state.
[0078] The present application also provides a data center comprising a plurality of data modules and the liquid cooling system A in any of the above embodiments, each data module corresponding to at least one liquid cooling system A, and the liquid cooling system A being used for cooling the data module. After the data center adopts the liquid cooling system A of the above embodiments, the problem of damage of the data module caused by leakage of the cooling liquid can be avoided, the normal operation of the data center is ensured, at the same time, the cooling effect of the data module can also be ensured, the energy consumption of the data center during operation is reduced, and the reliability of the work is ensured.
[0079] The technical features of the above embodiments can be combined in any manner. To make the description concise, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the present application.
[0080] The above embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it should not be understood as a limitation on the patent application scope. It should be pointed out that, for ordinary skilled persons in the art, several 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 protection scope of the patent of the present application should be subject to the appended claims.
Claims
1. A liquid cooling system, characterized by, The liquid cooling system comprises a negative pressure source, a heat exchanger, a negative pressure assembly, a pipeline assembly, a cold plate and a plurality of groups of liquid storage tanks, each group of the liquid storage tanks comprises a high-temperature liquid storage tank and a low-temperature liquid storage tank, each of the high-temperature liquid storage tanks is arranged in parallel, and each of the low-temperature liquid storage tanks is arranged in parallel. One end of the negative pressure assembly is connected to the negative pressure source, and the other end is connected to each of the high-temperature liquid storage tanks and each of the low-temperature liquid storage tanks, the pipeline assembly comprises a first pipeline and a second pipeline, one end of the first pipeline is connected to the output end of each of the high-temperature liquid storage tanks, the other end of the first pipeline is connected to the input end of each of the low-temperature liquid storage tanks, one end of the second pipeline is connected to the output end of each of the low-temperature liquid storage tanks, and the other end of each of the second pipeline is connected to the input end of each of the high-temperature liquid storage tanks, the heat exchanger is arranged in parallel with the first pipeline for heat exchange, and the cold plate is arranged in the second pipeline.
2. The liquid cooling system of claim 1, wherein, The negative pressure assembly comprises a plurality of suction pipelines, one end of each of the plurality of suction pipelines is connected to the negative pressure source, and the other end of each of the plurality of suction pipelines is connected to each of the high-temperature liquid storage tanks and the low-temperature liquid storage tanks. The negative pressure assembly further comprises a vacuum adjusting member, each of the suction pipelines is provided with the vacuum adjusting member, and the vacuum adjusting member is used to control the suction pipeline to suck negative pressure from the high-temperature liquid storage tank and the low-temperature liquid storage tank.
3. The liquid cooling system of claim 1, wherein, The pipeline assembly further comprises a high-temperature input pipeline, a high-temperature output pipeline, a low-temperature input pipeline and a low-temperature output pipeline, the high-temperature input pipeline is arranged at the input end of the high-temperature liquid storage tank and connected to the second pipeline, the high-temperature output pipeline is arranged at the output end of the high-temperature liquid storage tank and connected to the first pipeline, the low-temperature input pipeline is arranged at the input end of the low-temperature liquid storage tank and connected to the first pipeline, and the low-temperature output pipeline is arranged at the output end of the low-temperature liquid storage tank and connected to the second pipeline.
4. The liquid cooling system of claim 3, wherein, The liquid cooling system further comprises a high-temperature adjusting member and a low-temperature adjusting member, the high-temperature adjusting member is arranged at the high-temperature input pipeline and the high-temperature output pipeline, the high-temperature adjusting member is used to adjust the inflow and outflow state of the cooling liquid in the high-temperature liquid storage tank, the low-temperature adjusting member is arranged at the low-temperature input pipeline and the low-temperature output pipeline, and the low-temperature adjusting member is used to adjust the inflow and outflow state of the cooling liquid in the low-temperature liquid storage tank.
5. The liquid cooling system of claim 1, wherein, The liquid cooling system further comprises a plurality of liquid level meters, each of the high-temperature liquid storage tanks is provided with the liquid level meter, and each of the low-temperature liquid storage tanks is provided with the liquid level meter, and the liquid level meter is used to provide a liquid level signal in the liquid storage tank.
6. The liquid cooling system of claim 1, wherein, The liquid cooling system further comprises a plurality of pressure measuring members, each of the high-temperature liquid storage tanks is provided with the pressure measuring member, and each of the low-temperature liquid storage tanks is provided with the pressure measuring member, and the pressure measuring member is used to provide a pressure signal in the liquid storage tank.
7. The liquid cooling system of claim 1, wherein, The liquid cooling system further comprises a leak detection member, the leak detection member is arranged in the first pipeline and / or the second pipeline, and the leak detection member is used to determine whether there is liquid leakage.
8. The liquid cooling system of claim 1, wherein, The liquid cooling system comprises a plurality of cold plates, the plurality of cold plates are arranged in parallel and arranged in the second pipeline.
9. The liquid cooling system of any one of claims 1 to 8, wherein, The liquid cooling system comprises two groups of the liquid storage tanks, each group of the liquid storage tanks comprising a first high-temperature liquid storage tank, a first low-temperature liquid storage tank, a second high-temperature liquid storage tank and a second low-temperature liquid storage tank, one end of the first pipeline being connected to output ends of the first high-temperature liquid storage tank and the second high-temperature liquid storage tank, the other end of the first pipeline being connected to input ends of the first low-temperature liquid storage tank and the second low-temperature liquid storage tank, one end of the second pipeline being connected to output ends of the first low-temperature liquid storage tank and the second low-temperature liquid storage tank, the other end of the second pipeline being connected to input ends of the first high-temperature liquid storage tank and the second high-temperature liquid storage tank.
10. A data center, characterized by, The liquid cooling system comprises a plurality of data modules and a liquid cooling system as claimed in any one of claims 1 to 9, each data module corresponding to at least one liquid cooling system, the liquid cooling system being used to cool the data module.