Safe cooling device applied to immersed server

Abstract

The utility model discloses a safety cooling device applied to an immersed server, which relates to the field of safety cooling devices and comprises a case and an electronic element, the electronic element is immersed in the case through cooling liquid, and an inlet and an outlet of the case are respectively connected with a cooling liquid inlet pipe and a cooling liquid outlet pipe. The cooling liquid inlet pipe and the cooling liquid outlet pipe are both buried underground. The earth surface soil layer is used for replacing a cooling tower, the purpose of absorbing heat of cooling liquid in an energy-saving mode can be achieved, the cooling liquid does not need to be conveyed for a long distance, and equipment cost and loss are reduced; cooling liquid can sequentially pass through the upper discharge inlet hole and the heat dissipation cavity and then is discharged into the conversion cavity from the one-way water valve in the upper discharge hole to form secondary or multiple internal circulation cooling, and particularly, sufficient heat dissipation can be carried out on key electronic elements.

Description

Technical Field

[0001] This utility model relates to the field of safety cooling devices, and in particular to a safety cooling device for immersion servers. Background Technology

[0002] Existing computer enclosures used in power plants and data centers typically employ immersion cooling. This involves placing coolant inside the enclosure, completely submerging the electronic components, and allowing the coolant to circulate and dissipate heat. However, this method requires the use of radiators and cooling towers. These cooling towers are usually large and located a certain distance from the enclosure; a single cooling tower can connect to multiple enclosures. This long-distance cooling method consumes a significant amount of pump energy, and its energy efficiency and convenience need improvement. Furthermore, separate secondary or multiple cooling mechanisms are required to dissipate heat from critical electronic components within the enclosure.

[0003] Therefore, it is necessary to propose a safe cooling device for immersion servers to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a safe cooling device for immersion servers to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a safety cooling device for an immersion server, comprising a chassis and electronic components. The electronic components are immersed in the chassis by coolant. The inlet and outlet of the chassis are respectively connected to a coolant inlet pipe and a coolant outlet pipe, both of which are buried underground. The coolant inlet pipe and the coolant outlet pipe are connected by a connecting box. An internal circulation tank is provided inside the chassis, and multiple heat dissipation chambers are provided in the internal circulation tank. Electronic components are distributed in each heat dissipation chamber and are suspended and supported in the heat dissipation chamber. Temperature sensors are installed in the heat dissipation chambers. Each heat dissipation chamber has an upper inlet hole and an upper outlet hole at the top, and a lower outlet hole at the bottom. A solenoid valve is provided in the lower outlet hole, and a one-way water valve is provided in the upper outlet hole to allow the coolant in the heat dissipation chamber to flow unidirectionally to the top of the internal circulation tank.

[0006] Preferably, a conversion chamber is formed above the inner circulation box, and a filter layer is provided below the inner circulation box. The upper and lower parts of the filter layer are an upper chamber and a lower chamber, respectively. The upper chamber is connected to the lower discharge hole, and the upper end of the coolant discharge pipe is connected to the lower chamber.

[0007] Preferably, both the coolant inlet pipe and the coolant outlet pipe are vertically buried underground, and both the coolant inlet pipe and the coolant outlet pipe are heat-conducting pipes.

[0008] Both the coolant inlet pipe and the coolant outlet pipe have a spiral structure on their outer rings.

[0009] Preferably, the connection box has two threaded holes on its upper part, and the lower ends of the coolant inlet pipe and the coolant outlet pipe are both connected to the corresponding threaded holes by threaded engagement.

[0010] Preferably, the coolant inlet pipe, coolant outlet pipe and chassis are detachably connected.

[0011] Preferably, a vacuum suction box is provided between the coolant inlet pipe and the upper end of the chassis, and the vacuum suction box is equipped with a vacuum pump;

[0012] A main pump body is installed between the vacuum suction box and the chassis.

[0013] Preferably, a spare tank is provided on one side of the chassis for storing spare coolant. A spare pump body is provided on the spare tank, and the end of the spare pump body away from the spare tank is connected to the interior of the upper chamber.

[0014] This invention uses a surface soil layer instead of a cooling tower, achieving energy-efficient absorption of coolant heat without the need for long-distance coolant transport, thus reducing equipment costs and wear. Furthermore, by burying the coolant inlet and outlet pipes underground, there is no need for external insulation layers. The soil layer's buffering and shock-absorbing properties reduce vibrations during coolant flow, preventing coolant vaporization. Both the inlet and outlet pipes feature a spiral structure on their outer rings, ensuring stable burial and preventing settlement or horizontal displacement. This spiral structure also facilitates easy removal for maintenance or replacement. Additionally, this invention solves the problem of soil or other impurities entering the connection box through the threaded holes when replacing the inlet and outlet pipes. By controlling the solenoid valve in the lower discharge port to close, coolant is still being continuously pumped into the conversion chamber. The coolant can sequentially pass through the upper inlet port and the heat dissipation chamber before being discharged through the one-way valve in the upper discharge port back into the conversion chamber, forming a secondary or multiple internal circulation cooling system. This is particularly effective for dissipating heat from critical electronic components. The main pump body pumps coolant from a lower position to a higher position, resulting in greater energy savings and higher efficiency. Furthermore, the vertical design of the coolant discharge pipe allows the coolant to descend and be discharged under its own gravity, further improving energy efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the safety cooling device of this utility model applied to an immersion server.

[0016] Figure 2 This is a schematic diagram of the chassis structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the structure of the safety cooling device of this utility model applied to an immersion server during assembly.

[0018] Figure 4 This is a cross-sectional view of the chassis of this utility model.

[0019] In the diagram: 1. Chassis; 2. Electronic components; 3. Coolant inlet pipe; 4. Coolant outlet pipe; 5. Connector box; 6. Spare box; 7. Spare pump body; 8. Filter layer; 9. Upper chamber; 10. Lower chamber; 11. Heat dissipation chamber; 12. Support leg; 13. Lower discharge port; 14. Temperature sensor; 15. Internal circulation box; 16. Upper inlet port; 17. Upper discharge port; 18. Conversion chamber; 19. Main pump body; 20. Vacuum suction box; 21. Vacuum suction pump. Detailed Implementation

[0020] refer to Figure 1 As shown, the existing chassis 1 used in power plants and data centers typically uses an immersion cooling method, that is, coolant is placed in the chassis 1, and the electronic components 2 in the chassis 1 are completely immersed in the chassis 1. The coolant flows in the chassis 1 to dissipate heat from the electronic components 2 in the chassis 1. However, it needs to be used in conjunction with a radiator and a cooling tower. The cooling tower is usually a large cooling tower and there is a certain distance between it and the chassis 1. A set of cooling towers can connect multiple chassis 1. This long-distance transmission method consumes a lot of pump energy, and energy saving and convenience need to be improved.

[0021] Therefore, this utility model provides such Figures 1-4 The diagram shows a safety cooling device for immersion servers. This safety cooling device replaces the cooling tower in the prior art and cools the coolant in the coolant inlet pipe 3 and coolant outlet pipe 4 by burying them underground.

[0022] For details, please refer to Figure 1 As shown, both the coolant inlet pipe 3 and the coolant outlet pipe 4 are vertically buried underground. Both the coolant inlet pipe 3 and the coolant outlet pipe 4 are heat-conducting pipes, and their lengths are reasonably designed.

[0023] The temperature of the surface soil layer is usually between 0℃ and 50℃. The temperature of the coolant after dissipating heat from the electronic component 2 is generally around 100℃. Therefore, the soil layer absorbs the heat of the coolant in the coolant inlet pipe 3 and coolant outlet pipe 4 through heat exchange, keeping the coolant at a suitable temperature, generally between 20℃ and 40℃, but this range may vary depending on the region. In this invention, the surface soil layer is used instead of a cooling tower, which can achieve the purpose of energy-saving absorption of coolant heat, eliminating the need for long-distance transportation of coolant, and reducing equipment costs and losses.

[0024] The existing technology of using ground-mounted pipes to transport coolant not only wastes ground space, but also requires an insulation layer on the outside of the pipes and anti-vibration devices on the pipes to prevent the coolant from being heated by the ambient air and thus failing to adequately dissipate heat from the electronic components 2. In addition, filling the area around the coolant inlet pipe 3 and the coolant outlet pipe 4 with soil can prevent pipe vibration and reduce the vibration phenomenon that occurs when the coolant flows in the pipes, thereby also avoiding problems such as coolant vaporization.

[0025] refer to Figure 3 As shown, during the actual construction, a foundation pit is first excavated in the soil layer, and a connecting box 5 is buried at the bottom of the foundation pit. The connecting box 5 is a hollow box with two threaded holes on the top. Sealing rings are installed at both ends of the threaded holes. After the connecting box 5 is buried, the coolant inlet pipe 3 and the coolant outlet pipe 4 can be connected to the two threaded holes, so that the coolant inlet pipe 3, the coolant outlet pipe 4 and the connecting box 5 are spliced ​​and installed. After the foundation pit is buried with soil, the ends of the coolant inlet pipe 3 and the coolant outlet pipe 4 are connected to the inlet and outlet of the chassis 1 respectively. The specific connection method is not described in detail here, but is a common existing connection structure. The sealing rings are used to seal the connection between the coolant inlet pipe 3, the coolant outlet pipe 4 and the connecting box 5.

[0026] It should be noted that materials with good buffering and shock absorption capabilities or good heat absorption capabilities can also be filled into the foundation pit to increase the heat exchange effect of the coolant inside the coolant inlet pipe 3 and the coolant outlet pipe 4.

[0027] The coolant inlet pipe 3 and the coolant outlet pipe 4 are both equipped with a spiral structure on their outer rings. The spiral structure allows the coolant inlet pipe 3 and the coolant outlet pipe 4 to be stably buried in the soil, preventing them from settling or shifting horizontally. The spiral structure also makes it easy to remove the coolant inlet pipe 3 and the coolant outlet pipe 4 for maintenance or replacement in the future.

[0028] It should be noted that when disassembling and replacing the coolant inlet pipe 3 and coolant outlet pipe 4, since the soil layer has already been shaped, even when the coolant inlet pipe 3 and coolant outlet pipe 4 are removed, there will still be holes in the soil layer for connecting new pipes. When replacing the coolant inlet pipe 3 and coolant outlet pipe 4, a water pump is first connected to the end of the coolant inlet pipe 3 or coolant outlet pipe 4. The water pump pumps water into the coolant inlet pipe 3 or coolant outlet pipe 4. The water can wash away impurities in the coolant inlet pipe 3, coolant outlet pipe 4 or connector box 5, thus solving the problem of soil or other impurities entering the connector box 5 through the threaded hole above the connector box 5 when replacing the coolant inlet pipe 3 and coolant outlet pipe 4.

[0029] The arrangement of the coolant inlet pipe 3 and coolant outlet pipe 4 in this utility model is only for illustration. Under the same principle, coolant inlet pipe 3 and coolant outlet pipe 4 of appropriate length and coolant inlet pipe 3 and coolant outlet pipe 4 of appropriate direction can be selected, and no limitation is made here.

[0030] refer to Figure 2 As shown, considering the existing technology where the coolant circulates within the chassis 1, a separate secondary or multiple cooling mechanism is needed to dissipate heat from critical electronic components within the chassis 1. Therefore, an internal circulation tank 15 is fixedly installed inside the chassis 1. The internal circulation tank 15 contains multiple heat dissipation chambers 11, with multiple electronic components 2 distributed one-to-one within each chamber. The bottom of each electronic component 2 is supported by feet 12, ensuring that the electronic component 2 has space available for coolant flow in all directions. Each heat dissipation chamber 11 has an upper inlet hole 16 and an upper outlet hole above it. 17. A lower discharge port 13 is provided below the heat dissipation chamber 11. A solenoid valve is provided in the lower discharge port 13. A one-way water valve is provided in the upper discharge port 17 to allow the coolant in the heat dissipation chamber 11 to flow one-way to the upper part of the inner circulation tank 15. A temperature sensor 14 for monitoring the coolant temperature is installed on the inner wall of the heat dissipation chamber 11. A conversion chamber 18 is formed above the inner circulation tank 15. A filter layer 8 is provided below the inner circulation tank 15. The upper and lower parts of the filter layer 8 are an upper chamber 9 and a lower chamber 10, respectively. The upper chamber 9 is connected to the lower discharge port 13. The upper end of the coolant discharge pipe 4 is connected to the lower chamber 10.

[0031] During operation, when the coolant enters the conversion chamber 18, it enters the heat dissipation chamber 11 through the upper inlet 16. The coolant inside the heat dissipation chamber 11 cools the electronic components 2. The temperature sensor 14 monitors the temperature of the coolant in the heat dissipation chamber 11 in real time and sets an appropriate temperature threshold, such as 60°C. The operating temperature of the electronic components 2 is generally around 100°C, so this temperature needs to be lowered as much as possible. Therefore, when the coolant absorbs heat from the electronic components 2 until the coolant temperature reaches 60°C, the solenoid valve in the lower outlet 13 is opened, and the coolant can pass through the upper chamber 9, the filter layer 8, and the lower chamber 10 in sequence into the coolant outlet pipe 4. The coolant entering the coolant outlet pipe 4 is heated by the soil layer, which cools the coolant again. After cooling, the coolant passes through the connecting box 5 and then enters the chassis 1 through the coolant inlet pipe 3 for recycling.

[0032] When the coolant temperature monitored by temperature sensor 14 is lower than the set threshold, such as 50°C, it proves that the coolant still has the ability to continue to dissipate heat from electronic components 2. Therefore, the solenoid valve in the lower discharge port 13 can be closed. Since the coolant is still being continuously pumped into the conversion chamber 18, the coolant can pass through the upper discharge port 16 and the heat dissipation chamber 11 in sequence and then be discharged from the one-way water valve in the upper discharge port 17 to the conversion chamber 18 to form a secondary or multiple internal circulation cooling until the coolant temperature reaches the set threshold. Only then will the solenoid valve in the lower discharge port 13 be opened, so that the coolant is discharged into the upper chamber 9, the lower chamber 10, and the coolant discharge pipe 4 for internal and external circulation.

[0033] In this invention, the solenoid valve and the temperature sensor 14 can be connected through a control chip, which is a common control method. Here, we will only give a brief description. For example, when the temperature sensor 14 detects the temperature of the coolant, it feeds this temperature data back to the control chip. The control chip judges the data through its set program or by connecting to a computer, and then controls the solenoid valve to open or close.

[0034] refer to Figure 2 and Figure 4As shown, this utility model not only utilizes the buried coolant inlet pipe 3 and coolant outlet pipe 4 to achieve energy saving, cost reduction, and space saving, but also combines the principle of vacuum suction to reduce the operating power of the pump body. Specifically, a vacuum suction box 20 is set between the coolant inlet pipe 3 and the upper end of the casing 1, and a vacuum suction pump 21 is set on the vacuum suction box 20. The vacuum suction pump 21 can evacuate the vacuum suction box 20. Due to the principle of pressure difference, the coolant located at a lower position can be pumped into the vacuum suction box 20. Then, a main pump body 19 is set between the vacuum suction box 20 and the casing 1, and the coolant is pumped into the casing 1 through the main pump body 19, which greatly reduces energy consumption. Compared with using the main pump body 19 to pump the coolant at a lower position to a higher position, it is more energy-efficient and has higher efficiency. Moreover, due to the vertical setting of the coolant outlet pipe 4, the coolant can also be discharged by its own gravity, further saving energy.

[0035] refer to Figure 4 As shown, the present invention also provides a spare tank 6 on one side of the chassis 1. The spare tank 6 is used to store spare coolant to avoid insufficient coolant in the chassis 1. Specifically, a spare pump body 7 is provided on the spare tank 6. The end of the spare pump body 7 away from the spare tank 6 is connected to the interior of the upper chamber 9. By starting the spare pump body 7, the coolant in the spare tank 6 can be pumped into the upper chamber 9 to replenish it. After being filtered by the filter layer 8, the coolant enters the lower chamber 10 for use.

[0036] In summary, the above describes the entire concept of this utility model. Technologies that achieve similar effects through the same principle are all within the protection scope of this utility model. Conventional existing technologies and those that can be adjusted by those skilled in the art will not be elaborated here.

Claims

1. A safety cooling device for an immersion server, comprising a chassis (1) and electronic components (2), wherein the electronic components (2) are immersed in the chassis (1) by a coolant, characterized in that: The inlet and outlet of the chassis (1) are respectively connected to a coolant inlet pipe (3) and a coolant outlet pipe (4), and both the coolant inlet pipe (3) and the coolant outlet pipe (4) are buried underground. The coolant inlet pipe (3) and coolant outlet pipe (4) are connected by a connecting box (5); The chassis (1) is equipped with an internal circulation tank (15), which contains multiple heat dissipation chambers (11). Each heat dissipation chamber (11) contains an electronic component (2), which is suspended in the heat dissipation chamber (11). A temperature sensor (14) is installed in the heat dissipation chamber (11). Each heat dissipation chamber (11) has an upper inlet hole (16) and an upper outlet hole (17) above it. A lower outlet hole (13) is provided below the heat dissipation chamber (11). A solenoid valve is provided in the lower outlet hole (13). A one-way water valve is provided in the upper outlet hole (17) to allow the coolant in the heat dissipation chamber (11) to flow one-way to the top of the internal circulation tank (15).

2. The safety cooling device for an immersion server according to claim 1, characterized in that: A conversion chamber (18) is formed above the inner circulation box (15), and a filter layer (8) is provided below the inner circulation box (15). The upper and lower parts of the filter layer (8) are an upper chamber (9) and a lower chamber (10), respectively. The upper chamber (9) is connected to the lower discharge hole (13), and the upper end of the coolant discharge pipe (4) is connected to the lower chamber (10).

3. The safety cooling device for immersion servers according to claim 1, characterized in that: The coolant inlet pipe (3) and coolant outlet pipe (4) are both vertically buried underground, and both the coolant inlet pipe (3) and coolant outlet pipe (4) are heat-conducting pipes. Both the coolant inlet pipe (3) and the coolant outlet pipe (4) have a spiral structure on their outer rings.

4. A safety cooling device for immersion servers according to claim 1, characterized in that: The connecting box (5) has two threaded holes on its upper part. The lower ends of the coolant inlet pipe (3) and the coolant outlet pipe (4) are connected to the corresponding threaded holes by threaded engagement.

5. A safety cooling device for immersion servers according to claim 1, characterized in that: The coolant inlet pipe (3), coolant outlet pipe (4) are detachably connected to the chassis (1).

6. A safety cooling device for immersion servers according to claim 1, characterized in that: A vacuum suction box (20) is provided between the coolant inlet pipe (3) and the upper end of the chassis (1), and the vacuum suction box (20) is equipped with a vacuum suction pump (21); A main pump body (19) is provided between the vacuum suction box (20) and the chassis (1).

7. A safety cooling device for immersion servers according to claim 2, characterized in that: A spare tank (6) is provided on one side of the chassis (1). The spare tank (6) is used to store spare coolant. A spare pump body (7) is provided on the spare tank (6). The end of the spare pump body (7) away from the spare tank (6) is connected to the interior of the upper chamber (9).

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