Data machine room liquid cooling system

Abstract

The utility model discloses a data computer lab liquid cooling system relates to data center technical field, the utility model discloses a liquid cooling cabinet one side is fixed with the bottom plate, and bottom plate outer surface and back are all fixed with the side plate, and the top of side plate is fixed with the top plate, and be provided with the seal groove between top plate and bottom plate, the top of top plate is penetrated with the sealing plug, and the inside fixed spring piece of sealing plug. The utility model discloses through the setting of bottom plate, side plate, top plate and seal groove, the welding fixed of bottom plate, side plate and top plate, the clearance between three forms seal groove, and the cable passes through seal groove and enters liquid cooling cabinet and is connected with the server, forms liquid seal through pouring fluorinated coolant into seal groove, and the gaseous fluorinated coolant evaporated in liquid cooling cabinet will not be discharged to the computer room inside through the cable access position through the blocking of seal groove liquid fluorinated coolant, improves the leakproofness, realizes the sealing through liquid seal, thereby avoids the phenomenon of the gaseous fluorinated coolant evaporated and escapes from the cable access position.

Description

Technical Field

[0001] This utility model relates to the field of data center technology, specifically to a liquid cooling system for a data center. Background Technology

[0002] A data center, also known as an internet data center or server room, is the heart of the internet. Its core purpose is to centrally store, operate, and protect computer systems, network equipment, and related support systems. Servers in a data center operate at high temperatures and are typically cooled using air-cooling or liquid-cooling systems. Liquid-cooling systems include contact liquid-cooling systems and non-contact liquid-cooling systems. Contact liquid-cooling systems include spray liquid-cooling systems, unidirectional immersion liquid-cooling systems, and bidirectional / phase-change immersion liquid-cooling systems.

[0003] Phase change immersion liquid cooling involves immersing server components in a fluorinated coolant. The fluorinated coolant absorbs heat, evaporates into a gaseous state, and rises to contact cooling coils, coolers, and other cooling equipment. The gaseous coolant then releases heat, condenses, and falls back to the server. Compared to liquid coolant, gaseous fluorinated coolant has a smaller volume and is in a relatively enclosed space, thus possessing a certain pressure. This makes it easy for the gaseous coolant to escape, especially in areas where data and power cables pass through. The numerous and varied sizes of these cables create complex gaps, making sealing difficult. Poor sealing easily leads to the gaseous coolant escaping from the cable entry points, resulting in waste. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a liquid cooling system for data centers to solve the technical problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a liquid cooling system for a data center, comprising a liquid-cooled cabinet, a base plate fixed to one side of the liquid-cooled cabinet, and side plates fixed to the outer surface and back of the base plate, a top plate fixed to the top of the side plates, and a sealing groove provided between the top plate and the base plate; a sealing plug penetrating the top of the top plate, and a spring sheet fixed inside the sealing plug, and a groove provided on the back of the sealing plug; a limiting plate connected to one side of the top of the top plate, and a limiting bolt penetrating one side of the top of the limiting plate.

[0006] By adopting the above technical solution, the cable passes through the sealing groove 9 and enters the liquid-cooled cabinet 1 to connect with the server 4. The sealing groove 9 is equipped with fluorinated coolant to form a liquid seal. The liquid fluorinated coolant in the sealing groove 9 prevents the gaseous fluorinated coolant evaporating in the liquid-cooled cabinet 1 from being discharged into the computer room through the cable connection point, thus improving the sealing performance. Moreover, since the right side of the sealing groove 9 is lower, excess fluorinated coolant can be sent into the liquid-cooled cabinet 1 through overflow, preventing the fluorinated coolant level from being too high and being discharged from the left side of the sealing groove 9. At the same time, the elasticity of the sealing plug 10 and the auxiliary support of the spring plate 11 enable the sealing plug 10 to fit tightly against the cable and the top plate 8 to fill the gap, achieving good sealing performance and reducing the phenomenon of fluorinated coolant evaporation and escape in the sealing groove 9. Furthermore, the limiting plate 13 can prevent the sealing plug 10 from falling upward, increasing the structural stability.

[0007] Furthermore, the sealing groove is in the shape of a "U", and one side of the top of the sealing groove bends to the right at a 90-degree angle to connect with the liquid cooling cabinet.

[0008] By adopting the above technical solution, the bottom plate, side plate and top plate are welded and fixed, and the gap between the three forms a sealing groove. The cable passes through the sealing groove into the liquid-cooled cabinet and connects to the server. Fluorinated coolant is poured into the sealing groove to form a liquid seal. The liquid fluorinated coolant in the sealing groove prevents the gaseous fluorinated coolant evaporating in the liquid-cooled cabinet from being discharged into the computer room through the cable connection point, thereby improving the sealing performance.

[0009] Furthermore, the height of one side of the top of the sealing groove is less than the height of the other side of the top of the sealing groove.

[0010] By adopting the above technical solution, since the right side of the sealing tank is lower, excess fluorinated coolant can be sent into the liquid cooling cabinet by overflow, avoiding the fluorinated coolant level from being too high and being discharged from the left side of the sealing tank.

[0011] Furthermore, the longitudinal section of the sealing plug is shaped like a "U", and the cross section of the sealing plug is also shaped like a "U".

[0012] By adopting the above technical solution, after the cable is installed, the sealing plug and spring plate are bent and opened through the groove position, and then the sealing plug is put on the outer ring of the cable. After that, the sealing plug can be lowered through the top of the top plate. The elasticity of the sealing plug restores its original shape, which achieves good sealing performance and reduces the phenomenon of evaporation and escape of fluorinated coolant in the sealing groove.

[0013] Furthermore, the cross-section of the spring sheet is shaped like the Chinese character "T".

[0014] By adopting the above technical solution, with the assistance of spring plates, the sealing plug can be tightly fitted to the cable and top plate to fill the gap, thereby achieving good sealing performance and reducing the occurrence of evaporation and escape of fluorinated coolant in the sealing groove.

[0015] Furthermore, a through hole is provided on one side of the top of the limiting plate, and the limiting plate is detachably connected to the top plate by limiting bolts.

[0016] By adopting the above technical solution, after the sealing plug is installed, the limiting plate can be placed directly on top of the sealing plug. The through hole on one side of the top of the limiting plate prevents the limiting plate from interfering with the cable. Then, the limiting plate is tightened by screwing in the limiting bolt. Therefore, the limiting plate can prevent the sealing plug from falling upward and increase the structural stability.

[0017] Furthermore, the top of the liquid-cooled cabinet is connected to a cabinet door, and a sealing gasket is connected between the cabinet door and the liquid-cooled cabinet. A cooler is installed in the middle of the bottom of the cabinet door, and a server is installed inside the liquid-cooled cabinet.

[0018] By adopting the above technical solution, during operation of the phase change immersion liquid cooling system, the fluorinated coolant in the liquid cooling cabinet 1 absorbs the heat generated by the server 4 during operation and evaporates. The evaporated gaseous fluorinated coolant, with its lower density, begins to rise. The rising gaseous fluorinated coolant comes into contact with the cooler 5, where it absorbs heat from the gaseous fluorinated coolant, causing it to condense back into a liquid state. Gravity then causes the fluorinated coolant to fall back to the side of the server 4 and rejoin the liquid cooling process. The cooler 5 is connected to the heat exchange unit in the server room via pipes and a pump, allowing the secondary circulating coolant to circulate between the cooler 5 and the server room. The primary circulating coolant circulates within the heat exchange unit; the secondary circulating coolant absorbs heat from the fluorinated coolant through the heat exchanger 5, and releases heat upon returning to the heat exchange unit, thus completing the cooling process; the heat exchange unit is connected to the outdoor heat dissipation equipment via pipes and a pump, allowing the primary circulating coolant to circulate between the heat exchange unit and the outdoor heat dissipation equipment; the primary circulating coolant absorbs heat from the secondary circulating coolant through the heat exchange unit, and upon returning to the outdoor heat dissipation equipment, the heat from the primary circulating coolant is dissipated to the outside, thereby completing the cooling process of the primary circulating coolant.

[0019] Furthermore, a replenishing valve and a draining valve are respectively installed on one side of the outer surface of one of the side plates.

[0020] By adopting the above technical solution, if the staff finds that the amount of fluorinated coolant in the sealing tank 9 is too low or contaminated during installation, they can add fluorinated coolant to the sealing tank 9 through the replenishment valve 15, or discharge the contaminated fluorinated coolant through the drain valve 16. When discharging, a container can be placed at the bottom of the drain valve 16 to collect the contaminated fluorinated coolant.

[0021] Furthermore, the spring sheet is made of 316L stainless steel and has rounded corners around its perimeter, while the sealing plug is made of FFKM material.

[0022] By adopting the above technical solution, the 316L stainless steel spring sheet is corrosion resistant and can provide a good pre-tightening seal for the sealing plug. The rounded corner design prevents the edges of the spring sheet from scratching or puncturing the sealing plug. When combined with the FFKM sealing plug, it can reliably seal the gaseous fluorinated coolant and prevent the gaseous fluorinated coolant from penetrating.

[0023] In summary, the present invention has the following main advantages:

[0024] 1. This utility model uses a base plate, side plates, top plate, and sealing groove. The base plate, side plates, and top plate are welded and fixed together, and the gap between the three forms a sealing groove. The cable passes through the sealing groove into the liquid-cooled cabinet to connect with the server. Fluorinated coolant is poured into the sealing groove to form a liquid seal. The liquid fluorinated coolant in the sealing groove prevents the gaseous fluorinated coolant evaporating inside the liquid-cooled cabinet from being discharged into the computer room through the cable connection point, thus improving the sealing performance. Furthermore, because the right side of the sealing groove is lower, excess fluorinated coolant can be sent into the liquid-cooled cabinet through overflow, preventing the fluorinated coolant level from being too high and being discharged from the left side of the sealing groove. The liquid seal achieves a seal, thereby preventing the phenomenon of evaporated gaseous fluorinated coolant escaping from the cable connection point.

[0025] 2. This utility model, through the setting of a sealing plug, spring sheet, and groove, allows the sealing plug and spring sheet to be bent and opened through the groove after the cable is installed. The sealing plug is then placed over the outer ring of the cable, allowing it to penetrate the top of the top plate. The sealing plug's elasticity restores its original shape, and the spring sheet provides additional support, ensuring a tight seal between the sealing plug and the cable and top plate, filling any gaps and reducing the escape of fluorinated coolant from the sealing groove. The fluorinated coolant in the liquid-cooled cabinet absorbs heat and evaporates at a much faster rate than the natural evaporation rate of the fluorinated coolant in the sealing groove. Furthermore, the evaporation of the fluorinated coolant in the sealing groove saturates the left side of the groove, preventing further evaporation. Therefore, the pressure and quantity of gaseous fluorinated coolant in the sealing groove are lower than in the liquid-cooled cabinet, making it much more difficult for it to escape through the sealing plug. Thus, the combination of liquid sealing and elastic sealing achieves excellent sealing performance, further reducing the escape of gaseous fluorinated coolant from the cable entry point.

[0026] 3. This utility model uses a limiting plate and limiting bolts. After the sealing plug is installed, the limiting plate can be placed directly on top of the sealing plug. The through hole on one side of the top of the limiting plate prevents the limiting plate from interfering with the cable. Then, the limiting plate is tightened by screwing in the limiting bolts. Therefore, the limiting plate can prevent the sealing plug from falling upward, increasing the structural stability; improving the stability of the sealing structure, and preventing the sealing plug from falling off and affecting the sealing performance. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this utility model;

[0028] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0029] Figure 3 For the present utility model Figure 2 Enlarged view of the structure at point A in the image;

[0030] Figure 4 This is a schematic diagram of the exploded structure of the base plate of this utility model;

[0031] Figure 5 This is a schematic diagram of the explosion structure of the sealing plug of this utility model;

[0032] Figure 6 This is a system diagram of the present invention.

[0033] In the diagram: 1. Liquid-cooled cabinet; 2. Cabinet door; 3. Sealing gasket; 4. Server; 5. Cooler; 6. Base plate; 7. Side plate; 8. Top plate; 9. Sealing groove; 10. Sealing plug; 11. Spring plate; 12. Groove; 13. Limiting plate; 14. Limiting bolt; 15. Liquid replenishment valve; 16. Liquid drain valve. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0035] The embodiments of this utility model will be described below based on its overall structure.

[0036] Example 1:

[0037] A liquid cooling system for a data center, such as Figures 1-6As shown, the system includes a liquid-cooled cabinet 1. A base plate 6 is fixed to one side of the liquid-cooled cabinet 1. Side plates 7 are fixed to the outer surface and back of the base plate 6. A top plate 8 is fixed to the top of the side plates 7. A sealing groove 9 is provided between the top plate 8 and the base plate 6. The sealing groove 9 is U-shaped. One side of the top of the sealing groove 9 bends to the right at 90 degrees and connects to the liquid-cooled cabinet 1. The height of one side of the top of the sealing groove 9 is less than the height of the other side of the top of the sealing groove 9. A sealing plug 10 passes through the top of the top plate 8. The sealing plug 10 has a T-shaped longitudinal section and a C-shaped cross section. A spring plate 11 with a C-shaped cross section is fixed inside the sealing plug 10. A groove 12 is provided on the back of the sealing plug 10. A limiting plate 13 is connected to one side of the top of the top plate 8. A through hole is provided on one side of the top of the limiting plate 13. A limiting bolt 14 passes through one side of the top of the limiting plate 13. The limiting plate 13 is limited by a limiting bolt. Bolt 14 is disconnected from the top plate 8. The cable passes through the sealing groove 9 and enters the liquid-cooled cabinet 1 to connect with the server 4. The sealing groove 9 is equipped with fluorinated coolant to form a liquid seal. The liquid fluorinated coolant in the sealing groove 9 prevents the gaseous fluorinated coolant evaporating in the liquid-cooled cabinet 1 from being discharged into the computer room through the cable connection point, thus improving the sealing performance. Since the right side of the sealing groove 9 is lower, excess fluorinated coolant can be sent into the liquid-cooled cabinet 1 through overflow, preventing the fluorinated coolant level from being too high and being discharged from the left side of the sealing groove 9. At the same time, the elasticity of the sealing plug 10 and the auxiliary support of the spring plate 11 enable the sealing plug 10 to fit tightly against the cable and the top plate 8 to fill the gaps, achieving good sealing performance and reducing the phenomenon of fluorinated coolant evaporation and escape in the sealing groove 9. The limiting plate 13 can also prevent the sealing plug 10 from falling upward, increasing the structural stability.

[0038] See Figure 1 , Figure 2 and Figure 6In the above embodiment, a cabinet door 2 is connected to the top of the liquid-cooled cabinet 1, and a sealing gasket 3 is connected between the cabinet door 2 and the liquid-cooled cabinet 1. A cooler 5 is installed in the middle of the bottom of the cabinet door 2. A server 4 is installed inside the liquid-cooled cabinet 1. When the phase change immersion liquid cooling system is working, the fluorinated coolant in the liquid-cooled cabinet 1 absorbs the heat generated by the server 4 during operation and evaporates. The evaporated gaseous fluorinated coolant has a lower density and begins to rise. The rising gaseous fluorinated coolant comes into contact with the cooler 5, and the cooler 5 absorbs the heat of the gaseous fluorinated coolant, causing the gaseous fluorinated coolant to condense back into a liquid state. Gravity causes the fluorinated coolant to fall back to the side of the server 4 and rejoin the liquid cooling operation. The cooler 5 is connected to the heat in the server room through pipes and pumps. The heat exchange unit (CDU) is connected, allowing the secondary circulating coolant to circulate between the cooler 5 and the heat exchange unit (CDU). The secondary circulating coolant absorbs heat from the fluorinated coolant through the cooler 5, and releases heat upon returning to the heat exchange unit (CDU), thus completing the cooling process. The heat exchange unit (CDU) is connected to the outdoor heat dissipation equipment via pipes and a pump, allowing the primary circulating coolant to circulate between the heat exchange unit (CDU) and the outdoor heat dissipation equipment. The primary circulating coolant absorbs heat from the secondary circulating coolant through the heat exchange unit (CDU), and dissipates the heat from the primary circulating coolant to the outside environment upon returning to the outdoor heat dissipation equipment, thereby completing the cooling process of the primary circulating coolant.

[0039] Example 2:

[0040] Based on the above embodiment one, the following settings are now implemented to facilitate the replacement and replenishment of fluorinated coolant.

[0041] See Figure 1 and Figure 4 In the above embodiment, a replenishing valve 15 and a draining valve 16 are respectively installed on one side of the outer surface of one of the side plates 7. If the staff finds that the amount of fluorinated coolant in the sealing tank 9 is too small or contaminated, they can replenish the fluorinated coolant in the sealing tank 9 through the replenishing valve 15, or drain the contaminated fluorinated coolant through the draining valve 16. When draining, a container can be placed at the bottom of the draining valve 16 to collect the contaminated fluorinated coolant.

[0042] Example 3:

[0043] Based on the above embodiment one, the following settings are now implemented to increase the service life of the structure.

[0044] See Figure 1 , Figure 2 , Figure 3 and Figure 5In the above embodiments, the spring plate 11 is made of 316L stainless steel, which is corrosion resistant and can provide good pre-tightening force for sealing the sealing plug 10; the spring plate 11 is rounded around all four sides to prevent the edges of the spring plate 11 from scratching the sealing plug 10; the sealing plug 10 is made of FFKM material, and the spring plate 11 is integrally formed by high pressure and high temperature vulcanization after surface treatment such as surface sandblasting and primer coating, which can reliably seal the gaseous fluorinated coolant and prevent the gaseous fluorinated coolant from penetrating.

[0045] The implementation principle of this utility model is as follows: First, when the phase change immersion liquid cooling system is working, the fluorinated coolant in the liquid cooling cabinet 1 absorbs the heat generated by the server 4 during operation and evaporates. The evaporated gaseous fluorinated coolant has a lower density and begins to rise. The rising gaseous fluorinated coolant comes into contact with the cooler 5, and the cooler 5 absorbs the heat from the gaseous fluorinated coolant, causing it to condense back into a liquid state. Gravity causes the fluorinated coolant to fall back to the side of the server 4 and rejoin the liquid cooling operation. The cooler 5 is connected to the heat exchange unit (CDU) in the server room of the server 4 through pipes and a pump, so that the secondary circulating coolant circulates between the cooler 5 and the heat exchange unit. The primary circulating coolant circulates within the primary CDU; the secondary circulating coolant absorbs heat from the fluorinated coolant through the heat exchanger 5, and releases heat upon returning to the heat exchange unit CDU, thus completing the cooling process; the heat exchange unit CDU is connected to the outdoor heat dissipation equipment via pipes and a pump, allowing the primary circulating coolant to circulate between the heat exchange unit CDU and the outdoor heat dissipation equipment; the primary circulating coolant absorbs heat from the secondary circulating coolant through the heat exchange unit CDU, and upon returning to the outdoor heat dissipation equipment, the heat from the primary circulating coolant is dissipated to the outside, thereby completing the cooling process of the primary circulating coolant;

[0046] The cable passes through the sealing groove 9 and enters the liquid-cooled cabinet 1 to connect with the server 4. The sealing groove 9 is equipped with fluorinated coolant to form a liquid seal. The liquid fluorinated coolant in the sealing groove 9 prevents the gaseous fluorinated coolant evaporating inside the liquid-cooled cabinet 1 from being discharged into the computer room through the cable connection point, thus improving the sealing performance. Furthermore, since the right side of the sealing groove 9 is lower, excess fluorinated coolant can be sent into the liquid-cooled cabinet 1 through overflow, preventing the fluorinated coolant level from being too high and being discharged from the left side of the sealing groove 9. At the same time, the elasticity of the sealing plug 10 and the auxiliary support of the spring plate 11 enable the sealing plug 10 to fit tightly against the cable and the top plate 8 to fill the gaps, achieving good sealing performance and reducing the escape of fluorinated coolant after evaporation in the sealing groove 9. In addition, the limiting plate 13 prevents the sealing plug 10 from falling upwards, increasing the structural stability.

[0047] When maintenance is required, the staff opens cabinet door 2, then removes the cable from server 4, and then removes limit bolt 14, limit plate 13 and sealing plug 10 in sequence. After opening the sealing plug 10 through groove 12, the staff removes the sealing plug 10 from the cable. Then the staff can pull the cable to pull it out of the liquid cooling cabinet 1 and the sealing tank 9 to complete the disassembly. The installation operation is the reverse of the disassembly operation. If the staff finds that the amount of fluorinated coolant in the sealing tank 9 is too low or contaminated during installation, fluorinated coolant can be added to the sealing tank 9 through replenishment valve 15, or the contaminated fluorinated coolant can be discharged through drain valve 16. When discharging, a container can be placed at the bottom of drain valve 16 to collect the contaminated fluorinated coolant.

[0048] It should be noted that the phase change immersion liquid cooling system for data centers is a relatively mature liquid cooling technology in the existing technology, and it is a technical means that is familiar and commonly used by those in the field. Therefore, this technical solution only provides a simple description of the phase change immersion liquid cooling system.

[0049] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A liquid cooling system for a data center, comprising a liquid-cooled cabinet (1), characterized in that: The liquid cooling cabinet (1) is fixed with a base plate (6) on one side, and side plates (7) are fixed on the outer surface and back of the base plate (6). A top plate (8) is fixed on the top of the side plate (7), and a sealing groove (9) is provided between the top plate (8) and the base plate (6). A sealing plug (10) is passed through the top of the top plate (8), and a spring sheet (11) is fixed inside the sealing plug (10). A groove (12) is opened on the back of the sealing plug (10). A limiting plate (13) is connected to one side of the top of the top plate (8), and a limiting bolt (14) passes through one side of the top of the limiting plate (13).

2. The liquid cooling system for data centers according to claim 1, characterized in that: The sealing groove (9) is U-shaped, and the top side of the sealing groove (9) bends to the right at a 90-degree angle to connect with the liquid cooling cabinet (1).

3. The liquid cooling system for data centers according to claim 2, characterized in that: The height of one side of the top of the sealing groove (9) is less than the height of the other side of the top of the sealing groove (9).

4. The liquid cooling system for data centers according to claim 1, characterized in that: The longitudinal section of the sealing plug (10) is "T" shaped, and the cross section of the sealing plug (10) is "C" shaped.

5. The liquid cooling system for data centers according to claim 1, characterized in that: The cross-section of the spring sheet (11) is "C" shaped.

6. The liquid cooling system for data centers according to claim 1, characterized in that: The limiting plate (13) has a through hole on one side of its top, and the limiting plate (13) is detachably connected to the top plate (8) by a limiting bolt (14).

7. The liquid cooling system for data centers according to claim 1, characterized in that: The liquid-cooled cabinet (1) is connected to a cabinet door (2) at the top, and a sealing gasket (3) is connected between the cabinet door (2) and the liquid-cooled cabinet (1). A cooler (5) is installed in the middle of the bottom of the cabinet door (2), and a server (4) is installed inside the liquid-cooled cabinet (1).

8. The liquid cooling system for data centers according to claim 1, characterized in that: One of the side plates (7) has a replenishment valve (15) and a drain valve (16) installed on one side of its outer surface.

9. The liquid cooling system for data centers according to claim 5, characterized in that: The spring sheet (11) is made of 316L stainless steel and has rounded corners around its perimeter. The sealing plug (10) is made of FFKM material.

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