Cooling structure of immersion liquid-cooled cabinet

Abstract

The utility model discloses a cooling structure of an immersed liquid-cooled cabinet, which comprises a cooling tower and a box body arranged on one side of the cooling tower, a cylinder body is arranged in the box body, a server is arranged in the cylinder body, an upper cover is arranged at the upper end of the box body, and a condenser pipe is arranged on the inner surface of the upper cover; according to the utility model, through the arrangement of the backflow temporary storage box body, the liquid from the heat exchange circulation system in the CDU body is temporarily stored in the backflow temporary storage box body, so that the cooling liquid in the box body and the heat exchange circulation system is emptied; cooling water in the cooling tower is pumped into the box body through a conveying water pump at the top of the cooling tower and flows into the heat exchange circulating system, and liquid temporarily stored in the backflow temporary storage box body is pumped back into the cooling tower; the conditions that the refrigerating effect is poor and the cooling effect is not obvious due to the fact that liquid in the box body and the heat exchange circulating system is directly pumped back to the cooling pump and then is pumped into the box body and the heat exchange system without being refrigerated in time can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of immersion liquid-cooled cabinets, and specifically relates to a cooling structure of an immersion liquid-cooled cabinet. Background Technique

[0002] An immersion liquid-cooled cabinet is a technology that uses liquid to dissipate heat from computer hardware. The cabinet is filled with a liquid with high thermal conductivity, and all hardware is completely immersed in it. A large amount of heat energy dissipated by the hardware is carried away by the liquid, reducing the temperature, thereby achieving the purpose of heat dissipation. This heat dissipation method can reduce a large amount of air flow, reduce noise, and ensure stability at the same time. It is one of the trends in the heat dissipation methods of future data centers.

[0003] For example, the Chinese authorized patent with the application number CN202022436893.8 discloses a cooling structure of an immersion liquid-cooled cabinet, including a cooling tower. A TANK box is arranged on one side of the cooling tower, a delivery water pump is arranged at the upper end of the cooling tower, an upper cover is arranged at the upper end of the TANK box, a condensing pipe is arranged on the inner surface of the upper cover, a water inlet pipe is arranged on one side of the condensing pipe, a water outlet pipe is arranged on one side of the water inlet pipe, and a cooling pipe is arranged on the outer surface of the cooling tower. This cooling structure of the immersion liquid-cooled cabinet has a better cooling effect on the inside of the TANK box, and at the same time realizes the liquid-cooling cycle of the entire process from the TANK box to the control electric box, so that the utilization rate of the coolant is relatively high. It solves the problem that the cooling structure of the traditional immersion liquid-cooled cabinet cannot adjust the entire cooling and temperature reduction parts according to the required working quantity, and at the same time solves the problem of easy waste of resources, bringing a better application prospect. However, the liquid inside the TANK box and the heat exchange circulation system is directly discharged back into the cooling tower, and the delivery water pump directly pumps the coolant in the cooling tower into the TANK box to form a cycle. There will be a situation where the coolant that has just flowed back into the cooling tower is directly pumped back into the TANK box, resulting in a poor refrigeration effect and an insignificant temperature reduction. Content of the Utility Model

[0004] In order to solve the defects existing in the prior art, the utility model provides a cooling structure of an immersion liquid-cooled cabinet.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] The utility model discloses a cooling structure of an immersion liquid-cooled cabinet, comprising a cooling tower and a box body arranged on one side of the cooling tower, a cylinder body is arranged inside the box body, a server is arranged inside the cylinder body, an upper cover is arranged at the upper end of the box body, a condenser is arranged on the inner surface of the upper cover, a CDU body is arranged on one side of the box body, a heat exchange circulation system is arranged inside the CDU body, a reflux temporary storage box body is arranged on one side of the box body, a first water pump is installed at the upper end of the reflux temporary storage box body, a first reflux pipe is connected to the water inlet of the first water pump, the other end of the first reflux pipe is connected to the water outlet of the heat exchange circulation system inside the CDU body, and the water outlet of the first water pump is connected to the reflux temporary storage box body; a second water pump is installed at the lower end of the reflux temporary storage box body, the water inlet of the second water pump is connected to the bottom end of the reflux temporary storage box body, and the water outlet of the second water pump is connected to the second reflux pipe for discharging water back to the cooling tower.

[0007] As a preferred technical solution of the utility model, the cooling tower is provided with a liquid adding and filtering mechanism connected to the cooling pipe of the cooling tower.

[0008] As a preferred technical solution of the utility model, the liquid adding and filtering mechanism comprises a filter cylinder provided on the cooling tower, the liquid inlet of the filter cylinder is connected to the water outlet of the water delivery pump on the cooling tower, and the liquid outlet of the filter cylinder is connected to the liquid inlet of the cooling pipe on the cooling tower.

[0009] As a preferred technical solution of the utility model, a filter screen barrel is provided inside the filter cylinder, and a lifting handle is connected to the upper end of the filter screen barrel via a rotating shaft.

[0010] As a preferred technical solution of the utility model, the top of the filter screen barrel is provided with an opening, the outer wall of the filter screen barrel is provided with an external thread, the opening of the filter screen barrel is threadedly connected with a top cover, and a sealing gasket is provided at the connection between the inside of the top cover and the filter screen barrel.

[0011] As a preferred technical solution of the utility model, the opening of the filter screen barrel is provided with a limit receiving edge, and the opening of the filter screen barrel is provided with a positioning support block for limiting the lifting handle.

[0012] As a preferred technical solution of the utility model, the water outlet of the water delivery pump on the cooling tower is connected to the top cover through a hose and a sealed bearing, and a rotating handle is provided on the top of the top cover.

[0013] The beneficial effects of the utility model are:

[0014] 1. The cooling structure of this immersion liquid-cooled cabinet, through the provided reflux temporary storage box, the liquid coming out of the internal heat exchange circulation system of the CDU body is temporarily stored inside the reflux temporary storage box, so that the coolant inside the box and inside the heat exchange circulation system is emptied. Then, the water pump at the top of the cooling tower pumps the cooling water in the cooling tower into the box and then flows into the internal heat exchange circulation system. Then, the liquid temporarily stored inside the reflux temporary storage box is pumped back into the cooling tower. This can avoid the situation that the liquid inside the box and the heat exchange circulation system is directly pumped back to the cooling pump and then pumped into the box and the heat exchange system again without being cooled in time, resulting in poor refrigeration effect and insignificant temperature reduction effect. Among them, the first water pump can pump the coolant inside the heat exchange circulation system back into the reflux temporary storage box, and the second water pump can pump the liquid inside the reflux temporary storage box back into the cooling tower.

[0015] 2. The cooling structure of this immersion liquid-cooled cabinet, after the water pump pumps out the liquid, it enters the filter mesh barrel inside the filter cylinder. The impurities remain inside the filter mesh barrel, and the water enters the bottom of the filter cylinder through the mesh holes of the filter mesh barrel, so that the impurities in the coolant can be filtered, avoiding the impurities in the coolant from entering the box and damaging the server. When cleaning the impurities inside the filter mesh barrel, rotate the rotating handle, remove the top cover from the filter cylinder, and grasp the lifting handle, then the filter mesh barrel can be lifted out for cleaning. After cleaning, reassemble it again. Description of the Drawings

[0016] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0017] Figure 1 is the structural schematic diagram of the cooling structure of an immersion liquid-cooled cabinet of the present utility model;

[0018] Figure 2 is the structural schematic diagram of the liquid addition and filtration mechanism of the cooling structure of an immersion liquid-cooled cabinet of the present utility model;

[0019] Figure 3 is the exploded structural schematic diagram of the liquid addition and filtration mechanism of the cooling structure of an immersion liquid-cooled cabinet of the present utility model.

[0020] In the figures: 1, cooling tower; 2, box; 3, CDU body; 4, reflux temporary storage box; 5, first water pump; 6, first return pipe; 7, second water pump; 8, second return pipe; 9, liquid addition and filtration mechanism; 10, filter cylinder; 11, filter mesh barrel; 12, lifting handle; 13, top cover; 14, limit receiving edge; 15, rotating handle; 16, positioning support block. Detailed Embodiments

[0021] The preferred embodiments of the present utility model will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present utility model, and are not used to limit the present utility model.

[0022] Embodiment: As Figure 1 、 Figure 2 and Figure 3 shown, a cooling structure of an immersion liquid-cooled cabinet of the present utility model includes a cooling tower 1 and a box body 2 provided on one side of the cooling tower 1. A cylinder body is provided inside the box body 2, and a server is provided inside the cylinder body. An upper cover is provided at the upper end of the box body 2, and a condensing pipe is provided on the inner surface of the upper cover. A CDU body 3 is provided on one side of the box body 2, and a heat exchange circulation system is provided inside the CDU body 3. A reflux temporary storage box body 4 is provided on one side of the box body 2. A first water pump 5 is installed at the upper end of the reflux temporary storage box body 4. The water inlet of the first water pump 5 is connected to a first reflux pipe 6, and the other end of the first reflux pipe 6 is connected to the water outlet of the heat exchange circulation system inside the CDU body 3. The water outlet of the first water pump 5 is communicated with the reflux temporary storage box body 4. A second water pump 7 is installed at the lower end of the reflux temporary storage box body 4. The water inlet of the second water pump 7 is communicated with the bottom end of the reflux temporary storage box body 4. The water outlet of the second water pump 7 is connected to a second reflux pipe 8 for discharging water back to the cooling tower 1.

[0023] Among them, a liquid adding and filtering mechanism 9 is provided on the cooling tower 1 and is communicated with the cooling pipe of the cooling tower 1. The liquid adding and filtering mechanism 9 includes a filtering cylinder body 10 provided on the cooling tower 1. The liquid inlet of the filtering cylinder body 10 is communicated with the water outlet of the conveying water pump on the cooling tower 1. The liquid outlet of the filtering cylinder body 10 is communicated with the liquid inlet of the cooling pipe on the cooling tower 1. A filter net barrel 11 is provided inside the filtering cylinder body 10. The upper end of the filter net barrel 11 is connected to a lifting handle 12 through a rotating shaft. An opening is provided at the top end of the filter net barrel 11. External threads are provided on the outer wall of the filter net barrel 11. A top cover 13 is threadedly connected to the opening of the filter net barrel 11. A sealing gasket is provided at the connection between the inside of the top cover 13 and the filter net barrel 11. The water outlet of the conveying water pump on the cooling tower 1 is connected to the top cover 13 through a flexible hose via a sealed bearing. A rotating handle 15 is provided at the top end of the top cover 13. After the conveying water pump pumps out the liquid, it enters the filter net barrel 11 inside the filtering cylinder body 10, and the impurities remain inside the filter net barrel 11. The water enters the bottom of the filtering cylinder body 10 through the mesh holes of the filter net barrel 11, so that the impurities in the coolant can be filtered, and it is avoided that the impurities in the coolant enter the box body 2 and damage the server. When cleaning the impurities inside the filter net barrel 11, rotate the rotating handle 15, remove the top cover 13 from the filtering cylinder body 10, and grasp the lifting handle 12 to lift out the filter net barrel 11 for cleaning, and then reassemble it after cleaning.

[0024] Among them, a limit bearing edge 14 is provided at the opening of the filter net barrel 11, and a positioning support block 16 for limiting and supporting the lifting handle 12 is provided at the opening of the filter net barrel 11. The limit bearing edge 14 can bear the filter net barrel 11, so that the filter barrel body 10 supports the filter net barrel 11. The positioning support block 16 can limit and support the lifting handle 12 to prevent the lifting handle 12 from rotating downwards through the rotating shaft, which is inconvenient to take.

[0025] During operation, for the cooling structure of this immersion liquid-cooled cabinet, through the provided reflux temporary storage box body 4, the liquid coming out of the internal heat exchange circulation system of the CDU body 3 is temporarily stored inside the reflux temporary storage box body 4, so that the coolant inside the box body 2 and the internal heat exchange circulation system is emptied. Then, the water pump at the top of the cooling tower 1 pumps the cooling water in the cooling tower 1 into the box body 2 and flows into the internal heat exchange circulation system. Then, the liquid temporarily stored inside the reflux temporary storage box body 4 is pumped back into the cooling tower 1. This can avoid the situation that the liquid inside the box body 2 and the heat exchange circulation system is directly pumped back to the cooling pump and then pumped into the box body 2 and the heat exchange system again without being cooled in time, resulting in poor refrigeration effect and insignificant cooling effect. Among them, the first water pump 5 can pump the coolant inside the heat exchange circulation system back into the reflux temporary storage box body 4, and the second water pump 7 can pump the liquid inside the reflux temporary storage box back into the cooling tower 1.

[0026] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A cooling structure of an immersion liquid cooling cabinet, comprising a cooling tower (1) and a box (2) arranged on one side of the cooling tower (1), a cylinder body being arranged inside the box (2), a server being arranged inside the cylinder body, an upper cover being arranged at the upper end of the box (2), a condenser being arranged on the inner surface of the upper cover, a CDU body (3) being arranged on one side of the box (2), a heat exchange circulation system being arranged inside the CDU body (3), characterized in that: A return temporary storage box (4) is provided on one side of the box body (2); a first water pump (5) is installed at the upper end of the return temporary storage box (4); a water inlet of the first water pump (5) is connected to a first return pipe (6); the other end of the first return pipe (6) is connected to a water outlet of a heat exchange circulation system inside the CDU body (3); and the water outlet of the first water pump (5) is connected to the return temporary storage box (4); a second water pump (7) is installed at the lower end of the return temporary storage box (4); a water inlet of the second water pump (7) is connected to the bottom end of the return temporary storage box (4); and a water outlet of the second water pump (7) is connected to a second return pipe (8) for discharging water back to the cooling tower (1).

2. The cooling structure of an immersion liquid-cooled cabinet according to claim 1, characterized in that: The cooling tower (1) is provided with a liquid adding and filtering mechanism (9) which is connected to the cooling pipe of the cooling tower (1).

3. The cooling structure of an immersion liquid-cooled cabinet according to claim 2, characterized in that: The liquid adding and filtering mechanism (9) comprises a filtering cylinder (10) arranged on the cooling tower (1), the liquid inlet of the filtering cylinder (10) being connected to the water outlet of the water delivery pump on the cooling tower (1), and the liquid outlet of the filtering cylinder (10) being connected to the liquid inlet of the cooling pipe on the cooling tower (1).

4. The cooling structure of an immersion liquid-cooled cabinet according to claim 3, characterized in that: A filter screen barrel (11) is provided inside the filter cylinder (10), and a lifting handle (12) is connected to the upper end of the filter screen barrel (11) via a rotating shaft.

5. The cooling structure of an immersion liquid-cooled cabinet according to claim 4, characterized in that: The top end of the filter screen barrel (11) is provided with an opening, the outer wall of the filter screen barrel (11) is provided with an external thread, a top cover (13) is threadedly connected to the opening of the filter screen barrel (11), and a sealing gasket is provided at the connection between the inside of the top cover (13) and the filter screen barrel (11).

6. The cooling structure of an immersion liquid-cooled cabinet according to claim 5, characterized in that: A limiting receiving edge (14) is provided at the opening of the filter screen barrel (11), and a positioning support block (16) for limiting support of the lifting handle (12) is provided at the opening of the filter screen barrel (11).

7. The cooling structure of an immersion liquid-cooled cabinet according to claim 6, characterized in that: The water outlet of the water delivery pump on the cooling tower (1) is connected to the top cover (13) via a hose and a sealed bearing, and a rotating handle (15) is provided at the top of the top cover (13).

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