Immersed liquid cooling device and server system

Abstract

The invention discloses an immersed liquid cooling device and a server system, and relates to the technical field of computers, the immersed liquid cooling device comprises a packaging box, a first circulation loop, a storage box, a second circulation loop and a cold source, and the packaging box is filled with a first cooling working medium for cooling a server; the first circulation loop communicates with the packaging box and provides a first cooling working medium for the packaging box. The storage box communicates with the first circulation loop, the first circulation loop is provided with a circulation driving part, the circulation driving part can drive the first cooling working medium in the packaging box to circularly flow, and the circulation driving part can drive the first cooling working medium in the packaging box to flow into the storage box; the second circulation loop is in heat exchange fit with the first circulation loop; and the cold source is connected with the second circulation loop and supplies the second cooling working medium to the second circulation loop, so that the technical problem of low compatibility of the immersed liquid cooling device in the related technology is solved, and the technical effect of improving the compatibility of the immersed liquid cooling device is achieved.

Description

Technical Field

[0001] This application relates to the field of computer technology, and particularly to an immersion liquid cooling device and a server system. Background Art

[0002] In the current field of liquid cooling technology, especially for the production and testing of single-phase immersion liquid cooling servers, traditional testing schemes mainly rely on vertical tanks. Although this testing method can provide the immersion liquid cooling environment required by the server, its inherent limitations and deficiencies are becoming increasingly prominent, becoming a bottleneck restricting the efficient production and testing of liquid cooling servers. The following points elaborate on the defects of the existing technology in detail:

[0003] 1. Compatibility issues: The existing testing schemes have poor compatibility with the cold plate liquid cooling server testing schemes, which means that when testing different types of liquid cooling servers, it is necessary to frequently replace the testing equipment and environment. This not only increases the testing cost but also reduces the production efficiency.

[0004] 2. Difficult maintenance and adjustment: Due to the variety of cooling working fluids, each working fluid has different requirements for the testing environment and the circulation system. In traditional testing schemes, when facing different working fluid requirements, it is necessary to replace the entire tank system and the circulation system, which is complex and costly to operate.

[0005] 3. Low space utilization: During the production process of current single-phase immersion liquid cooling servers, vertical tanks are usually used for testing. Tanks occupy a large area, are bulky, have insufficient space utilization, and have low utilization rate of the cooling working fluid. Summary of the Invention

[0006] This application provides an immersion liquid cooling device and a server system to at least solve the problem of low compatibility of the immersion liquid cooling device in related technologies.

[0007] This application provides an immersion liquid cooling device, including: a sealed box, a first circulation loop, a storage box, a second circulation loop, and a cold source. The sealed box is used to place the server, and the first cooling working fluid for dissipating heat from the server is filled in the sealed box; the first circulation loop is connected to the sealed box and provides the first cooling working fluid for dissipating heat from the server to the sealed box; the storage box is connected to the first circulation loop, and a circulation driving member is arranged on the first circulation loop. The circulation driving member can drive the first cooling working fluid in the sealed box to circulate, and the circulation driving member can drive the first cooling working fluid in the sealed box to flow into the storage box; the second circulation loop is in heat exchange cooperation with the first circulation loop; the cold source is connected to the second circulation loop, and the cold source can supply the second cooling working fluid to the second circulation loop.

[0008] The present application also provides a server system, which includes the above-mentioned immersion liquid cooling device and multiple servers. There are multiple encapsulation boxes for the immersion liquid cooling device, and the servers are located inside the encapsulation boxes.

[0009] Through the present application, due to the provision of the first circulation loop and the storage tank, the first cooling working medium can circulate inside the encapsulation box. On the one hand, the first cooling working medium can dissipate heat from the servers. On the other hand, when the servers enter and exit the storage tank, the circulation driving member can drive all the cooling working medium inside the encapsulation box to flow into the storage tank, thereby facilitating the replacement of the servers. As a result, different servers can be replaced inside the encapsulation box, so as to realize the testing of different servers, thereby improving the compatibility of the immersion liquid cooling device, avoiding the situation of frequently replacing testing equipment and environment when replacing servers. At the same time, the type of the first cooling working medium can be conveniently replaced, thereby further improving the compatibility of the immersion liquid cooling device and reducing the testing cost. Moreover, in this embodiment, a second circulation loop is also provided. Through the heat exchange cooperation between the second circulation loop and the first circulation loop, the heat exchange of the first cooling working medium is realized, which is beneficial to improving the heat exchange efficiency of the immersion liquid cooling device and achieving efficient heat dissipation of the servers. Therefore, the technical problem of low compatibility of the immersion liquid cooling device in the related art can be solved, and the technical effect of improving the compatibility of the immersion liquid cooling device can be achieved. Description of the Drawings

[0010] In order to more clearly illustrate the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0011] Figure 1 An immersion liquid cooling device provided for an embodiment of the present application;

[0012] Figure 2 A schematic structural diagram of an encapsulation box and a first circulation loop provided for an embodiment of the present application;

[0013] Figure 3 A schematic structural diagram of a first circulation loop provided for an embodiment of the present application.

[0014] Among them, the above-mentioned drawings include the following reference numerals:

[0015] 10. Sealing and packing box; 11. Box body; 12. Balance pipeline; 13. Breather valve; 14. Shut-off valve; 20. First circulation loop; 21. Circulation driving component; 22. First control component; 23. Second control component; 24. Flowmeter; 25. Pressure sensor; 26. Temperature sensor; 27. Filter; 30. Storage tank; 40. Second circulation loop; 41. Distribution assembly; 411. Distribution component; 412. Liquid distributor; 42. Liquid outlet pipe; 43. Liquid return pipe; 50. Cold source; 60. First heat exchanger; 61. First inlet; 62. First outlet; 63. Second inlet; 64. Second outlet. Detailed implementation manners

[0016] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0017] It should be noted that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. The terms "mounted", "connected" and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. The terms "parallel", "perpendicular", "equal" include the described situations and situations similar to the described situations, and the range of the similar situations is within the acceptable deviation range, where the acceptable deviation range is determined by those of ordinary skill in the art considering the measurements being discussed and the errors associated with the measurements of specific quantities (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallel and approximate parallel, and the acceptable deviation range of approximate parallel can be, for example, within 5° deviation; "perpendicular" includes absolute perpendicular and approximate perpendicular, and the acceptable deviation range of approximate perpendicular can also be, for example, within 5° deviation. "Equal" includes absolute equality and approximate equality, and the acceptable deviation range of approximate equality can be, for example, that the difference between the two equal ones is less than or equal to 5% of any one of them. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0018] In order to enable those skilled in the art of the present technology to better understand the solution of the present application, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0019] Embodiments of the present application provide an immersion liquid cooling device and a server system. The device will be described in detail in combination with the structure and working principle of the immersion liquid cooling device.

[0020] As Figures 1 to 3An immersion liquid cooling device shown in the figure includes: a sealed box 10, a first circulation loop 20, a storage box 30, a second circulation loop 40, and a cold source 50. The sealed box 10 is used to place servers, and the sealed box 10 is filled with a first cooling medium for dissipating heat from the servers; the first circulation loop 20 is connected to the sealed box 10 and provides the first cooling medium for dissipating heat from the servers to the sealed box 10; the storage box 30 is connected to the first circulation loop 20, and a circulation driving member 21 is provided on the first circulation loop 20. The circulation driving member 21 can drive the first cooling medium in the sealed box 10 to circulate, and the circulation driving member 21 can drive the first cooling medium in the sealed box 10 to flow into the storage box 30; the second circulation loop 40 is in heat exchange cooperation with the first circulation loop 20; the cold source 50 is connected to the second circulation loop 40, and the cold source 50 can supply a second cooling medium to the second circulation loop 40.

[0021] In this application, by setting the first circulation loop 20 and the storage box 30, the first cooling medium can circulate in the sealed box 10. On the one hand, the first cooling medium can dissipate heat from the servers. On the other hand, when the servers enter and exit the storage box 30, the circulation driving member 21 can drive all the cooling medium in the sealed box 10 to flow into the storage box 30, thus facilitating the replacement of the servers. As a result, different servers can be replaced in the sealed box 10, enabling the testing of different servers, improving the compatibility of the immersion liquid cooling device, avoiding the need to frequently replace testing equipment and the environment when replacing servers, and maximizing the compatibility with traditional cold plate liquid cooling server testing methods. Almost no modification is required to use the immersion liquid cooling device of this embodiment to test servers. At the same time, the type of the first cooling medium can be conveniently changed, further improving the compatibility of the immersion liquid cooling device and reducing the testing cost. Moreover, this embodiment also has a second circulation loop 40. Through the heat exchange cooperation between the second circulation loop 40 and the first circulation loop 20, heat exchange of the first cooling medium is achieved, which is beneficial to improving the heat exchange efficiency of the immersion liquid cooling device and realizing efficient heat dissipation of the servers.

[0022] It should be noted that the storage tank 30 in this embodiment is used to store the first cooling medium. Before testing the server, the first cooling medium inside the storage tank 30 is pumped into the sealed box by the circulation driving member 21. After the test is completed, the first cooling medium in the sealed box 10 is recycled into the storage tank 30 by the circulation driving member 21, so as to realize the recycling of the first cooling medium. The sealed box 10 is used to encapsulate the server to be tested inside, so as to form a good immersion liquid cooling environment for the server. The sealed box 10 is connected to the first circulation loop 20, and the first cooling medium in the sealed box 10 is driven to flow by the circulation driving member 21, and then heat transfer is completed through the first heat exchanger 60. One sealed box 10 in this embodiment can only accommodate one immersion liquid cooling server. The sealed box 10 can realize the transfer of interfaces such as the server network and power supply, and can ensure that the server encapsulated inside can meet the necessary power supply, communication and other requirements without leakage problems. The encapsulated server does not need to be placed in a tank, but only needs to be placed on a horizontal shelf, so as to maximize the utilization of space. The sealed box 10 is detachable, which is convenient for placing the server inside. By setting the sealed box 10 to be detachable, an end cover can be set at the top or the front end of the sealed box 10. After the server is placed in the sealed box 10 and the end cover is locked, it is ensured that the sealed box 10 is a closed environment. Once the sealed box 10 is filled with the first cooling medium, it is a closed system, not affected by external interference and has strong stability. The circulation driving member 21 is a power execution unit, which can realize the liquid injection and drainage requirements of the sealed box 10, and at the same time can also realize the requirement of the first cooling medium to circulate, so as to enhance the heat dissipation efficiency. The cold source 50 can be set as an air-cooled chilled water system, a water-cooled chilled water system, a closed cooling tower, etc., which can continuously provide the second cooling medium, and the second cooling medium can adopt cooling water.

[0023] The first circulation loop 20 in this embodiment has a cooling medium inlet and a cooling medium outlet, and is connected to the sealed box 10 through the cooling medium inlet and the cooling medium outlet. The first cooling medium enters the sealed box 10 through the cooling medium outlet and returns to the first circulation loop 20 through the cooling medium inlet. Preferably, multiple nozzles can be set at the cooling medium outlet, so as to form a certain water flow beam to drive the flow of the first cooling medium inside the sealed box 10, thereby improving the heat exchange efficiency between the first cooling medium and the server. There are multiple cooling medium inlets, so as to disturb the circulation of the first cooling medium in the sealed box 10 and the first circulation loop 20.

[0024] In this embodiment, the first circulation loop 20 includes a first control member 22 and a second control member 23. The circulation driving member 21 is connected to the first control member 22, and one of the encapsulation box 10 and the storage box 30 is connected to the first control member 22. When the encapsulation box 10 is being filled with liquid, the first control member 22 is connected to the storage box 30; the circulation driving member 21 is connected to the second control member 23, and the circulation driving member 21 is located between the first control member 22 and the second control member 23. One of the encapsulation box 10 and the storage box 30 is connected to the second control member 23. When the encapsulation box 10 is draining liquid, the second control member 23 is connected to the storage box 30. In this way, through the control of the first control member 22 and the second control member 23, the precise injection and recovery of the first cooling medium are achieved, avoiding waste of the cooling medium. Specifically, both the first control member 22 and the second control member 23 can be set as three-way valves and have three connection interfaces. As Figure 3 shown, it can be set as an electric three-way ball valve, so as to automatically realize the operations of filling liquid and draining liquid of the encapsulation box 10. The three connection interfaces of the first control member 22 are respectively connected to the encapsulation box 10, the storage box 30, and the circulation driving member 21. The three connection interfaces of the second control member 23 are respectively connected to the encapsulation box 10, the storage box 30, and the circulation driving member 21. The encapsulation box 10 has a liquid injection port and a liquid drainage port. The second control member 23 is connected to the liquid injection port, and the first control member 22 is connected to the liquid drainage port. When the encapsulation box 10 is being filled with liquid, the first control member 22 is connected to the storage box 30 and the second control member 23 is disconnected from the storage box 30. When the encapsulation box 10 is draining liquid, the second control member 23 is connected to the storage box 30 and the first control member 22 is disconnected from the storage box 30, thereby realizing the recycling of the first cooling medium, facilitating the server to enter and exit the encapsulation box 10, further improving the compatibility of the encapsulation box 10, while improving the utilization efficiency of the first cooling medium and reducing the operation cost.

[0025] Optionally, the circulation driving member 21 can adopt a gear pump, so as to provide a continuous and stable flow rate for the first circulation loop 20. At the same time, the gear pump has good self-priming ability and can effectively suck liquid from the inlet of the circulation driving member 21. Even after idling or restarting after a long stop, it can quickly establish a stable working state.

[0026] Preferably, the rotation speed of the circulation driving member 21 can be adjusted, so as to adjust the circulation speed of the first cooling medium, and further adjust the heat exchange speed of the first cooling medium, realizing the heat dissipation requirement of high efficiency and energy saving. In this way, the cooling capacity and the driving frequency of the circulation driving member 21 can be regulated according to different heat dissipation requirements to meet the test needs of the server. At the same time, placing one server in one encapsulation box 10 can also avoid the adverse factors generated by the conventional tank test and the server being put on and taken off the rack, such as the rise and fall of liquid cooling, the volatilization of the cooling medium, and the inability to adjust the control strategy according to the specific conditions of different servers.

[0027] AsFigure 3 As shown, in this embodiment, the immersion liquid cooling device further includes a first heat exchanger 60. The first heat exchanger 60 is disposed between the first circulation loop 20 and the second circulation loop 40 and is used to exchange heat for the first cooling medium, thereby realizing efficient heat exchange between the first cooling medium and the second cooling medium and improving the cooling efficiency. Specifically, the second cooling medium circulates in the second circulation loop 40. When the second cooling medium flows to the first heat exchanger 60, it takes away the heat of the first cooling medium, thereby quickly cooling the first cooling medium; the first cooling medium flows in the first circulation loop 20, exchanges heat with the second cooling medium through the first heat exchanger 60, and the cooled first cooling medium circulates back into the sealed box 10 again to provide cooling for the server to ensure the heat exchange effect of the server.

[0028] For the transformation of the traditional cold plate liquid cooling device, the second circulation loop 40 of the first heat exchanger 60 in this embodiment can use the water cooling system of the cold plate liquid cooling device to supply cold water, thereby maximizing the utilization of the components of the traditional cold plate liquid cooling device and reducing the transformation cost.

[0029] Optionally, the first heat exchanger 60 can be a plate heat exchanger. Of course, according to the actual situation, other types of heat exchangers such as microchannel heat exchangers and heat pipe heat exchangers can also be used.

[0030] In this embodiment, the first heat exchanger 60 has a first heat exchange loop. The first heat exchange loop has a first inlet 61 and a first outlet 62. The first inlet 61 is connected to the second control member 23, and the first outlet 62 is connected to the sealed box 10. The first heat exchange loop supplies the cooled first cooling medium to the sealed box 10. In this way, the temperature of the first cooling medium in the sealed box 10 can be precisely controlled to ensure that when needed, the first cooling medium in the sealed box 10 can flow into the storage box 30, thereby facilitating the replacement of the server in the sealed box 10, ensuring the safety of the server replacement process, and at the same time ensuring a suitable working temperature for the server when it is in the sealed box 10. Specifically, the first heat exchange loop is a circulation loop between the first heat exchanger 60 and the sealed box 10. The first cooling medium enters the first inlet 61 from the second control member 23 and then enters the first heat exchange loop. After being cooled, it flows into the sealed box 10 from the first outlet 62 to provide cooling for the server.

[0031] In this embodiment, the first heat exchanger 60 further has a second heat exchange circuit. The second heat exchange circuit has a second inlet 63 and a second outlet 64. The second circulation circuit 40 has a liquid outlet pipe 42 and a liquid return pipe 43. The liquid outlet pipe 42 is connected to the second inlet 63, and the liquid return pipe 43 is connected to the second outlet 64. The second circulation circuit 40 supplies a second cooling working medium to the first heat exchanger 60. In this way, heat exchange is carried out with the first cooling working medium through the second heat exchange circuit, and the low-temperature characteristics of the second cooling working medium are utilized to improve the cooling efficiency of the first cooling working medium. Specifically, the second circulation circuit 40 is a circulation circuit between the first heat exchanger 60 and the cold source 50. The second cooling working medium enters the second inlet 63 and then enters the second heat exchange circuit. The second cooling working medium exchanges heat with the first cooling working medium in the first heat exchanger 60, so that the temperature of the first cooling working medium is reduced to achieve the cooling of the server. The temperature of the second cooling working medium rises and flows back from the second outlet 64 to the second circulation circuit 40 for cooling, thereby realizing the cooling of the first cooling working medium by the second cooling working medium.

[0032] In this embodiment, the first circulation loop 20 further includes: a flowmeter 24, a pressure sensor 25, and a temperature sensor 26. The flowmeter 24 is used to detect the output flow of the circulation driving member 21; the pressure sensor 25 is used to detect the pressure of the sealed container 10; the flowmeter 24, the pressure sensor 25, and the temperature sensor 26 are all located between the circulation driving member 21 and the sealed container 10, and the temperature sensor 26 is used to detect the temperature of the first cooling working medium. In this way, through the monitoring of the flowmeter 24, the pressure sensor 25, and the temperature sensor 26, precise control of the circulating flow state of the first cooling working medium is achieved. Specifically, when the temperature of the first cooling working medium is higher than the required value, the circulation driving member 21 increases its rotational speed to accelerate the circulation speed of the first cooling working medium, thereby accelerating the heat exchange speed. When the flowmeter 24 detects that the output flow of the circulation driving member 21 is close to the critical value of the output flow of the circulation driving member 21, the second circulation loop 40 is started, thereby increasing the heat exchange speed of the first heat exchanger 60 and further reducing the temperature of the first cooling working medium, so as to achieve the adjustment of the heat exchange power. In this way, the rotational speed of the circulation driving member 21 can always work within the ideal range, thus ensuring the safety and sustainability of the first circulation loop 20. When the storage tank 30 injects liquid into the sealed container 10 through the first circulation loop 20, the pressure sensor 25 can detect the pressure in the first circulation loop 20 or the sealed container 10. When the specified pressure is reached, the circulation driving member 21 stops working; or when the sealed container 10 drains liquid, when the pressure sensor 25 detects that there is no pressure in the first circulation loop 20, the circulation driving member 21 stops working, thereby ensuring the reliability of liquid injection and drainage of the first circulation loop 20. When the temperature sensor 26 detects that the temperature of the first cooling working medium does not meet the requirements, by dynamically adjusting the rotational speed of the circulation driving member 21, the circulation speed of the first cooling working medium is accelerated or reduced to adjust the heat exchange power. The flowmeter 24, the pressure sensor 25, and the temperature sensor 26 are all located on the pipeline of the first circulation loop 20. Optionally, a manual ball valve is provided between the pressure sensor 25 and the pipeline of the first circulation loop 20 to ensure the safety of the first circulation loop 20. It should be noted that Figure 3 the letter M in it refers to the driving of the first control member and the second control member, indicating that the first control member 22 and the second control member 23 can adopt an automatic control structural form; the letter F refers to that the flowmeter 24 can display the flow rate; the letter P refers to that the pressure sensor 25 can display the pressure; the letter T refers to that the temperature sensor can display the temperature.

[0033] Such as Figure 2As shown, in this embodiment, the sealed container 10 includes a box body 11 for placing servers, a balance pipeline 12 for balancing the pressure inside the box body 11, a breather valve 13, and a cut-off valve 14. The balance pipeline 12 is communicated with the box body 11; the breather valve 13 is located on the balance pipeline 12 and is used to keep the pressure inside the box body 11 stable; the cut-off valve 14 is located on the balance pipeline 12, and the cut-off valve 14 is located between the breather valve 13 and the box body 11 and is used to control the on-off between the box body 11 and the breather valve 13. In this way, through the cooperation of the breather valve 13 and the cut-off valve 14, the stability of the pressure inside the sealed container 10 is achieved, avoiding pressure fluctuations during the liquid injection and drainage processes, which may affect the cooling effect. At the same time, it is also convenient for the replacement of the breather valve 13. Specifically, in this embodiment, one server is placed inside the box body 11. Of course, according to actual requirements, multiple servers can also be placed. The balance pipeline 12 is located on the side wall of the box body 11, and the breather valve 13 and the cut-off valve 14 are installed on the balance pipeline 12, and the breather valve 13 is located on the side away from the box body 11 of the cut-off valve 14 and is used to keep the pressure inside the sealed container 10 stable when injecting or draining liquid into the sealed container 10. In this way, when the sealed container 10 is injecting or draining liquid, both the cut-off valve 14 and the breather valve 13 are opened to ensure the stability of the pressure inside the sealed container 10 and ensure the smooth progress of liquid injection or drainage. Specifically, when injecting liquid into the sealed container 10, the breather valve 13 is responsible for exhausting the internal gas, reducing the gas content inside the sealed container 10, improving the heat exchange efficiency, and reducing gas corrosion. When draining the liquid from the sealed container 10, the breather valve 13 is used to maintain the stability of the internal pressure during the drainage of the sealed container 10, facilitating the drainage; when performing an airtightness test on the box body 11, the cut-off valve 14 can be closed to ensure the sealing of the box body 11 and prevent air leakage from the breather valve 13. Moreover, when needed, the replacement of the breather valve 13 can be achieved by closing the cut-off valve 14. Optionally, the cut-off valve 14 can be a manual ball valve, an electric ball valve, etc.

[0034] As Figure 1As shown, in this embodiment, the second circulation loop 40 includes a distribution component 41 for distributing the second cooling medium. The distribution component 41 is connected to the cold source 50. The cold source 50 provides the second cooling medium for the distribution component 41, and the second cooling medium in the distribution component 41 can flow back to the cold source 50. There are multiple first circulation loops 20, and the distribution component 41 is in heat exchange cooperation with the multiple first circulation loops 20, so as to achieve the precise distribution of the second cooling medium through the distribution component 41 and improve the heat exchange efficiency. Specifically, in this embodiment, there are multiple first circulation loops 20, enclosing boxes 10, storage boxes 30, and first heat exchangers 60, and they are arranged in one-to-one correspondence. That is, one first circulation loop 20, one enclosing box 10, one storage box 30, and one first heat exchanger 60 form a set of primary circulation components. There are multiple sets of primary circulation components in this embodiment, and each set of primary circulation components is connected to the distribution component 41, so as to realize the heat exchange between the second cooling medium and the first cooling medium in the multiple first circulation loops 20. The distribution component 41 can be set to one or more. When the distribution component 41 is set to multiple, each distribution component 41 can be respectively connected to multiple first heat exchangers 60, so that the cold source 50 can exchange heat for more first heat exchangers 60. Of course, according to actual needs, only one set of primary circulation components can also be set, or multiple sets of primary circulation components can be set, and one or more sets of primary circulation components can be connected as needed during use.

[0035] In this embodiment, the distribution component 41 includes a distributor 411 and multiple liquid distributors 412. The distributor 411 is connected to the cold source 50; each liquid distributor 412 is connected to the distributor 411. There are multiple first circulation loops 20, and each liquid distributor 412 can be in heat exchange cooperation with the multiple first circulation loops 20. In this way, through the cooperation of the distributor 411 and the multiple liquid distributors 412, the precise distribution and efficient heat exchange of the second cooling medium are realized. Specifically, the distribution of the cold source 50, distributor 411, liquid distributor 412, and first heat exchanger 60 in this embodiment is a three-level centralized distribution, that is, the cold source 50 supplies the second cooling medium to multiple distributors 411, each distributor 411 supplies the second cooling medium to multiple liquid distributors 412 respectively, and each liquid distributor 412 supplies the second cooling medium to multiple first heat exchangers 60 respectively, so that the second cooling medium can be provided for a large number of first heat exchangers 60, thereby completing the heat exchange with a large number of servers. Of course, according to actual requirements such as the number of servers, the second circulation loop 40 can also be set in other multi-level centralized distribution forms as long as the heat exchange requirements of each first heat exchanger 60 can be met.

[0036] In this embodiment, two quick connectors are provided at the second inlet 63 and the second outlet 64 of the first heat exchanger 60, and can be directly inserted into the liquid distributor 412 through a hose, and the supply of the second cooling medium can be realized without other operations. One liquid distributor 412 can be connected to multiple first heat exchangers 60 according to the cooling capacity requirements.

[0037] Preferably, the second circulation loop 40 further includes an adjusting member and a second heat exchanger. The adjusting member is located on the liquid outlet pipe 42 and / or the liquid return pipe 43 and is used to adjust the flow rate of the second cooling medium. The second heat exchanger is located on the second circulation loop 40 and is used to exchange heat for the second cooling medium. Specifically, the liquid outlet pipe 42 and the liquid return pipe 43 are located between the liquid distributor 412 and the first heat exchanger 60. The adjusting member can be arranged on the liquid outlet pipe 42 or on the liquid return pipe 43. When the heat dissipation effect of the first circulation loop 20 is difficult to meet the heat dissipation requirements of the server, the second circulation loop 40 is started for heat dissipation. The heat dissipation power of the second circulation loop 40 can be adjusted by adjusting the flow rate of the second cooling medium by the adjusting member to optimize the heat dissipation effect of the server. In this way, the circulation speed of the second cooling medium is automatically adjusted according to the heat dissipation requirements of each first circulation loop 20, so as to improve the utilization efficiency of the second cooling medium, and thus enable the immersion liquid cooling device of this embodiment to be applicable to servers with a wider range of heat dissipation requirements, thereby further improving the compatibility of the immersion liquid cooling device. The second heat exchanger can be arranged at the position where the second cooling medium flows back from the distribution member 411 to the cold source 50, that is, between the distribution member 411 and the cold source 50, or can be arranged inside the distribution member 411 to cool the second cooling medium flowing back to the distribution member 411 through the liquid return pipe 43, so as to provide the cooled second cooling medium for the liquid distributor 412. During the heat exchange process, the first heat exchanger 60 exchanges heat for the first cooling medium, and the adjusting member and the second heat exchanger adjust the flow rate and temperature of the second cooling medium to achieve efficient heat exchange. Optionally, the second heat exchanger can adopt a plate heat exchanger to transfer the cold quantity of the second cooling medium into the sealed box 10 and diffuse the heat into the atmosphere.

[0038] In this embodiment, the distribution member 411 can also drive the flow of the second cooling medium inside the liquid distributor 412, so as to achieve heat exchange.

[0039] In this embodiment, the first circulation loop 20 further includes a filter 27. The filter 27 is located between the storage tank 30 and the first control member 22 and is used to filter the first cooling medium. That is to say, before the first cooling medium flows out of the storage tank 30 to the first control member 22, it first passes through the filter 27 for filtration to filter out the impurities in the first cooling medium and prevent the impurities from entering the server and causing failures. Specifically, when injecting liquid into the sealed box 10, the first control member 22 is communicated with the storage tank 30, the second control member 23 is closed with the storage tank 30, the filter 27 filters the first cooling medium, and the circulation driving member 21 injects the first cooling medium into the sealed box 10; when the sealed box 10 discharges liquid, the first control member 22 is closed with the storage tank 30, the second control member 23 is communicated with the storage tank 30, and the circulation driving member 21 recovers the first cooling medium in the sealed box 10 to the storage tank 30.

[0040] The storage tank 30 of this embodiment has two interfaces, one for liquid inlet and one for liquid outlet. Both of these interfaces can be connected to the first circulation loop 20 through hoses, so as to meet the liquid injection and drainage requirements of the encapsulation box 10.

[0041] This application also provides a server system, which includes the above-mentioned immersion liquid cooling device and multiple servers. There are multiple encapsulation boxes 10 of the immersion liquid cooling device, and the servers are located inside the encapsulation boxes 10, so as to achieve efficient cooling of multiple servers.

[0042] The usage process of the immersion liquid cooling device of this embodiment is as follows: 1. When injecting liquid into the encapsulation box 10, the first cooling medium flows out from the storage tank 30, and flows into the encapsulation box 10 through the filter 27, the first control member 22, the circulation driving member 21, the second control member 23, the first heat exchanger 60, the flowmeter 24, the pressure sensor 25, and the temperature sensor 26. When the pressure sensor 25 detects that the specified pressure is reached, the circulation driving member 21 will stop the liquid injection work in the encapsulation box 10, and the first control member 22 closes the pipeline between it and the filter 27, and then opens the pipeline connected to the encapsulation box 10 to enter the test mode, that is, the first cooling medium starts to circulate. 2. In the test mode, the circulation driving member 21 pushes the first cooling medium to circulate in the encapsulation box 10. The temperature of the first cooling medium is detected by the temperature sensor 26, so as to dynamically adjust the rotation speed of the circulation driving member 21 to increase or decrease the flow rate of the first cooling medium, so as to adjust the heat exchange power. When the flowmeter 24 detects that the flow rate is close to the critical value of the output flow rate of the circulation driving member 21, then start the second circulation loop 40 and adjust the speed of the second cooling medium to adjust the heat exchange power, reduce or increase the rotation speed of the circulation driving member 21, so that the circulation driving member 21 always works within the ideal range. 3. When the test is completed, the encapsulation box 10 enters the drainage state. First, close the passage between the second control member 23 and the first heat exchanger 60, and open the passage between the second control member 23 and the storage tank 30. Then, the circulation driving member 21 extracts the cooling medium in the encapsulation box 10 until the flowmeter 24 and the pressure sensor 25 show no liquid flow and no pressure, and the circulation driving member 21 pauses working, that is, it is considered that the drainage is over. The liquid injection and drainage processes achieve the non-liquefaction operation when the server is encapsulated in the encapsulation box 10 and taken out from the encapsulation box 10, which is clean and fast, and greatly reduces the waste problem of the first cooling medium when the server enters and exits the box body 11.

[0043] The immersion liquid cooling device of this embodiment enables the traditional cold plate liquid cooling test device to be simply and conveniently converted into the immersion liquid cooling device of this embodiment, thereby realizing the test of the server. Only certain special devices need to be replaced, and the original environment basically does not need to be changed, with little impact. The existing cold plate liquid cooling test device is utilized to the maximum extent, improving the drawback that it is difficult for the traditional vertical immersion liquid cooling device to be compatible with the cold plate liquid cooling test device. At the same time, a series of problems such as the overflow of the cooling medium, the decrease in the liquid level, and the volatilization of the cooling medium during the loading and unloading of other servers during the test of the same tank are avoided. The immersion liquid cooling device of this embodiment not only has stronger compatibility but also breaks through the traditional vertical tank test to achieve horizontal testing, thus occupying a small area, making full use of the three-dimensional space, and having a higher space utilization rate. At the same time, if the first cooling medium is changed for testing, only the sealed box 10 and the circulation driving part 21 need to be replaced. The overall operation is simple and easy to implement, solving the problem that a large area of the device needs to be replaced when the cooling medium of the traditional liquid cooling device is changed.

[0044] It should be noted that the "multiple" in the above embodiments refers to at least two.

[0045] The above has introduced in detail an immersion liquid cooling device and a server system provided by this application. Specific examples are used in this article to elaborate on the principle and implementation manner of this application. The description of the above embodiments is only used to help understand the method and its core idea of this application. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of this application, several improvements and modifications can still be made to this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. An immersion liquid cooling device, characterized in that, Comprising: A sealed container (10) for placing a server, and a first cooling medium for cooling the server is filled in the sealed container (10); A first circulation loop (20) communicating with the sealed container (10) and providing the first cooling medium for cooling the server to the sealed container (10); A storage tank (30) communicating with the first circulation loop (20), and a circulation driving member (21) is provided on the first circulation loop (20). The circulation driving member (21) can drive the first cooling medium in the sealed container (10) to circulate, and the circulation driving member (21) can drive the first cooling medium in the sealed container (10) to flow into the storage tank (30); A second circulation loop (40) heat-exchangingly cooperating with the first circulation loop (20); A cold source (50) connected to the second circulation loop (40), and the cold source (50) can supply a second cooling medium to the second circulation loop (40).

2. The immersion liquid cooling device according to claim 1, wherein The first circulation loop (20) includes: A first control member (22), the circulation driving member (21) is connected to the first control member (22), and one of the sealed container (10) and the storage tank (30) is connected to the first control member (22). When the sealed container (10) is filled with liquid, the first control member (22) is connected to the storage tank (30); A second control member (23), the circulation driving member (21) is connected to the second control member (23), and the circulation driving member (21) is located between the first control member (22) and the second control member (23). One of the sealed container (10) and the storage tank (30) is connected to the second control member (23). When the sealed container (10) is drained, the second control member (23) is connected to the storage tank (30).

3. The immersion liquid cooling device according to claim 2, wherein, The immersion liquid cooling device further includes a first heat exchanger (60) provided between the first circulation loop (20) and the second circulation loop (40) and used for heat-exchanging the first cooling medium.

4. The immersion liquid cooling device according to claim 3, characterized in that, The first heat exchanger (60) has a first heat exchange loop with a first inlet (61) and a first outlet (62). The first inlet (61) is connected to the second control member (23), and the first outlet (62) is connected to the sealed container (10). The first heat exchange loop supplies the cooled first cooling medium to the sealed container (10).

5. The immersion liquid cooling device according to claim 3, characterized in that The first heat exchanger (60) further has a second heat exchange circuit, the second heat exchange circuit having a second inlet (63) and a second outlet (64), the second circulation circuit (40) having a liquid outlet pipe (42) and a liquid return pipe (43), the liquid outlet pipe (42) being connected to the second inlet (63), the liquid return pipe (43) being connected to the second outlet (64), and the second circulation circuit (40) supplying the second cooling working medium to the first heat exchanger (60).

6. The immersion liquid cooling device according to claim 1, wherein, The first circulation circuit (20) further includes: a flowmeter (24) for detecting the output flow rate of the circulation driving member (21); a pressure sensor (25) for detecting the pressure of the enclosure (10); a temperature sensor (26), the flowmeter (24), the pressure sensor (25), and the temperature sensor (26) all being located between the circulation driving member (21) and the enclosure (10), and the temperature sensor (26) being used to detect the temperature of the first cooling working medium.

7. The immersion liquid cooling device according to claim 1, characterized in that, The enclosure (10) includes: a box body (11) for placing the server; a balance pipeline (12) for balancing the pressure inside the box body (11), the balance pipeline (12) being communicated with the box body (11); a breather valve (13) located on the balance pipeline (12) for maintaining the stability of the pressure inside the box body (11); a cut-off valve (14) located on the balance pipeline (12), and the cut-off valve (14) being located between the breather valve (13) and the box body (11) and being used to control the on-off between the box body (11) and the breather valve (13).

8. The immersion liquid cooling device according to claim 1, wherein The second circulation circuit (40) includes a distribution assembly (41) for distributing the second cooling working medium, the distribution assembly (41) being connected to the cold source (50), the cold source (50) providing the second cooling working medium for the distribution assembly (41), and the second cooling working medium in the distribution assembly (41) being able to flow back to the cold source (50), there being a plurality of the first circulation circuits (20), and the distribution assembly (41) being in heat exchange cooperation with the plurality of the first circulation circuits (20).

9. The immersion liquid cooling device according to claim 8, characterized in that, The distribution assembly (41) includes: a distributor (411) connected to the cold source (50); a plurality of liquid distributors (412), each of the liquid distributors (412) being connected to the distributor (411), and each of the liquid distributors (412) being able to be in heat exchange cooperation with the plurality of the first circulation circuits (20).

10. The immersed liquid cooling device according to claim 9, wherein The first circulation loop (20) includes a first control member (22), a second control member (23) and a filter (27). Both the first control member (22) and the second control member (23) are connected to the circulation driving member (21), and the circulation driving member (21) is located between the first control member (22) and the second control member (23). When the sealed container (10) is being filled with liquid, the first control member (22) is connected to the storage tank (30) and the second control member (23) is disconnected from the storage tank (30). When the sealed container (10) is discharging liquid, the second control member (23) is connected to the storage tank (30) and the first control member (22) is disconnected from the storage tank (30). The filter (27) is located between the storage tank (30) and the first control member (22) and is used to filter the first cooling medium; The immersion liquid cooling device further includes a first heat exchanger (60). The first heat exchanger (60) is arranged between the first circulation loop (20) and the second circulation loop (40) and is used to exchange heat for the first cooling medium; The second circulation loop (40) has a liquid outlet pipe (42) and a liquid return pipe (43). Both the liquid outlet pipe (42) and the liquid return pipe (43) are connected to the first heat exchanger (60). The second circulation loop (40) supplies the second cooling medium to the first heat exchanger (60); The second circulation loop (40) further includes a regulating member and a second heat exchanger. The regulating member is located on the liquid outlet pipe (42) and / or the liquid return pipe (43). The regulating member is used to regulate the flow rate of the second cooling medium. The second heat exchanger is located on the second circulation loop (40) and is used to exchange heat for the second cooling medium.

11. A server system, characterized in that, An immersion liquid cooling device according to any one of claims 1 to 10 and a plurality of servers are included. There are a plurality of sealed containers (10) of the immersion liquid cooling device, and the servers are located within the sealed containers (10).

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