A single-phase liquid cooler

Abstract

This utility model relates to the field of supercomputer cooling equipment technology, and more particularly to a single-phase liquid cooler cabinet, comprising: a cabinet body, the cabinet body having a primary chamber and at least one secondary chamber isolated from each other, the primary chamber being used to hold coolant and immerse a heat source; a heat exchange mechanism disposed in the secondary chamber, the heat exchange mechanism having an inlet pipe communicating with the primary chamber, an outlet pipe communicating with the primary chamber, and a heat exchanger and a liquid driving device connecting the inlet pipe and the outlet pipe; and a cover connected to the cabinet body, the cabinet body having an opening in at least one of the primary chambers, the cover being used for a sealed connection with the opening of the cover; wherein, the heat exchange mechanism is used to drive the coolant in the primary chamber to the heat exchanger for heat exchange before injecting it back into the primary chamber, thereby forming a cooling circulation loop. This utility model, through the above-described configuration, ensures the safe and long-term reliable operation of the liquid cooler cabinet.

Description

Technical Field

[0001] This utility model relates to the field of supercomputer cooling equipment technology, and in particular to a single-phase liquid cooler. Background Technology

[0002] Supercomputers are massively parallel computing systems composed of tens of thousands of high-performance computing nodes. They are mainly used to solve tasks that require extremely high computing power, such as scientific computing, simulation engineering, weather forecasting, and artificial intelligence training. However, the power consumption of a single computing node in a supercomputer can reach 500W-1kW, and traditional air cooling is difficult to meet the heat dissipation requirements.

[0003] In related technologies, such as the patent with patent number CN219143406U, a heat exchange system for a supercomputing liquid cooling cabinet is disclosed. It adopts immersion phase change cooling. The core principle is to immerse the entire server in a low-boiling-point refrigerant. The refrigerant absorbs heat and boils away the heat. The gaseous refrigerant is then condensed and circulated back to the liquid phase, forming a closed-loop heat dissipation cycle.

[0004] However, the aforementioned phase change liquid cooler generates a large amount of gas (vapor) when the refrigerant boils. If the gaseous refrigerant accumulates in the sealed cavity, it will lead to a continuous increase in pressure and pose a risk of leakage. Furthermore, during long-term operation, the refrigerant will evaporate or the gas-liquid separation will be incomplete, causing the liquid level to drop. This requires regular replenishment, which also brings inconvenience to operation. Utility Model Content

[0005] In view of at least one of the above technical problems, the present invention provides a single-phase liquid cooler, which adopts structural improvements to enhance the stability and reliability of cooling.

[0006] According to a first aspect of the present invention, a single-phase liquid cooler is provided, comprising:

[0007] The cabinet has a primary chamber and at least one secondary chamber that are isolated from each other. The primary chamber is used to hold coolant and immerse a heat source.

[0008] A heat exchange mechanism is disposed in the secondary chamber, and the heat exchange mechanism has an inlet pipe communicating with the primary chamber, an outlet pipe communicating with the primary chamber, and a heat exchanger and a liquid driving device connected between the inlet pipe and the outlet pipe.

[0009] A cover is attached to the cabinet, the cabinet having an opening in at least the primary chamber, and the cover is used to seal the opening of the cover.

[0010] The heat exchange mechanism is used to drive the coolant in the primary chamber to the heat exchanger for heat exchange and then inject it back into the primary chamber to form a cooling circulation loop.

[0011] In some embodiments of this utility model, there are two secondary chambers, which are symmetrically arranged on both sides of the primary chamber.

[0012] In some embodiments of this utility model, the heat exchange mechanism has two parts, which are respectively placed in the two secondary chambers.

[0013] In some embodiments of this invention, one of the two heat exchange mechanisms is kept as a backup.

[0014] In some embodiments of this utility model, the primary chamber forms an inverted U-shaped structure that is wider at the top and narrower at the bottom in its width direction, including an upper wide cavity and a lower narrow cavity that are interconnected. The opening at the top of the upper wide cavity is adapted to the cover body, and the width of the lower narrow cavity is not less than the heat source to be immersed.

[0015] In some embodiments of this utility model, the secondary chamber is placed within the space formed by the upper wide cavity, the lower narrow cavity, and the outer wall of the cabinet. The water inlet pipe is connected to the upper wide cavity, and the water outlet pipe is connected to the lower narrow cavity.

[0016] In some embodiments of this utility model, a level gauge is also provided in the primary chamber, and thermometers are provided on both the inlet pipe and the outlet pipe. An alarm is also included that is electrically connected to the level gauge and the thermometer. The alarm is configured to sound an alarm when the level measured by the level gauge is less than a set value or when the difference between the thermometer on the inlet pipe and the thermometer on the outlet pipe is greater than a set value.

[0017] In some embodiments of this utility model, a replenishment valve communicating with the outside is also provided at the bottom of the primary chamber.

[0018] In some embodiments of this utility model, the bottom of the secondary chamber is open to the outside for communication with an external cooling medium, and the boiling point of the coolant placed in the primary chamber is not less than 100 degrees Celsius.

[0019] In some embodiments of this utility model, one end of the cover is hinged to the cabinet, the other end of the cover has a latch that cooperates with the cabinet, the cover has a handle on the latch side, and the cover also has gas springs on both sides that are rotatably connected to the cabinet.

[0020] The beneficial effects of this utility model are as follows: By placing coolant in the primary chamber and immersing the heat source, and by setting a heat exchange mechanism in the secondary chamber that communicates with the primary chamber, the coolant achieves heat exchange through circulation in the heat exchanger. Compared with the prior art, the single-phase circulation cooling method in this application, which keeps the coolant in liquid form, has the following advantages: First, the air pressure inside the cabinet is relatively low, and the risk of leakage is low. Second, due to the single-phase circulation cooling, frequent liquid replenishment is not required, thus ensuring the safe and long-term reliable operation of the liquid cooler. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the single-phase liquid cooler in the embodiment of this utility model;

[0023] Figure 2 As an embodiment of this utility model Figure 1 Sectional view along line AA in the middle;

[0024] Figure 3 This is a schematic diagram of the single-phase liquid cooler cover when it is opened in an embodiment of this utility model;

[0025] Figure 4 This is a structural schematic diagram of the single-phase liquid cooler from another perspective in an embodiment of this utility model;

[0026] Figure 5 As an embodiment of this utility model Figure 1 A magnified schematic diagram of the structure at point B in the diagram;

[0027] Figure 6 As an embodiment of this utility model Figure 2 A magnified schematic diagram of the structure at point C.

[0028] Explanation of reference numerals in the attached drawings: 1. Cabinet; 11. Primary chamber; 111. Upper wide chamber; 112. Lower narrow chamber; 12. Secondary chamber; 13. Level gauge; 14. Liquid replenishment valve; 2. Heat exchange mechanism; 21. Inlet water pipe; 21a. Thermometer; 22. Outlet water pipe; 23. Heat exchanger; 24. Liquid drive device; 3. Cover; 31. Lock; 32. Handle; 33. Gas spring. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] like Figures 1 to 6 The single-phase liquid cooler shown includes a cabinet 1, a heat exchange mechanism 2, and a cover 3. Please refer to the details. Figure 1 and Figure 2 In embodiments of this utility model, the cabinet 1 can be manufactured as follows: Figure 1 The rectangular structure shown can be formed by welding profiles and sheet metal; please refer to the following for details. Figure 2 In an embodiment of this utility model, the cabinet 1 has a primary chamber 11 and at least one secondary chamber 12 that are isolated from each other. The primary chamber 11 is used to place coolant and immerse the heat source. It should be noted that in an embodiment of this utility model, the boiling point of the coolant placed in the primary chamber 11 is higher than 100 degrees Celsius, so that the coolant will not evaporate during the heat dissipation process, and the heat source is completely immersed in the coolant. It should also be noted that in an embodiment of this utility model, the heat source can be a supercomputer or other equipment that needs to dissipate heat.

[0033] Please continue to refer to Figure 2In this embodiment of the invention, the heat exchange mechanism 2 is disposed within the secondary chamber 12, and the heat exchange mechanism 2 includes an inlet pipe 21 communicating with the primary chamber 11, an outlet pipe 22 communicating with the primary chamber 11, a heat exchanger 23 connecting the inlet pipe 21 and the outlet pipe 22, and a liquid driving device 24. It should be noted that in this embodiment of the invention, the liquid driving device 24 can be a pump, which is used to draw the coolant from the primary chamber 11 into the heat exchanger 23, and then return it to the primary chamber 11 through the heat exchanger 23 to form a circulation. The heat exchanger 23 can have various structural forms, including a plate heat exchanger 23 and other existing structural forms.

[0034] like Figure 2 and Figure 3 As shown in the embodiment of the present invention, the cover 3 is connected to the cabinet 1, and the cabinet 1 has an opening in at least one primary chamber 11. The cover 3 is used to seal the opening of the cover 3. The cover 3 is used to maintain the airtightness of the primary chamber 11. At the same time, in the embodiment of the present invention, the cover 3 can be opened for injecting coolant and placing heat sources that need to be cooled.

[0035] When performing the actual operation, please refer to... Figure 2 In this embodiment of the invention, the heat exchange mechanism 2 drives the coolant in the primary chamber 11 to the heat exchanger 23 for heat exchange before injecting it back into the primary chamber 11 to form a cooling circulation loop. This arrangement allows the heat emitted by the heat source to be carried away by the coolant and then enter the heat exchanger 23 for heat exchange with the outside. At this point, the temperature of the coolant in the heat exchanger 23 has decreased, and it then enters the primary chamber 11 to continue cooling the heat source.

[0036] In the above embodiments, by placing coolant in the primary chamber 11 and immersing the heat source, and by setting a heat exchange mechanism 2 in the secondary chamber 12 that communicates with the primary chamber 11, the coolant achieves heat exchange through the circulation of the heat exchanger 23. Compared with the prior art, the single-phase circulation cooling method in this application, which keeps the coolant in liquid form, has the following advantages: on the one hand, the air pressure inside the cabinet 1 is relatively low, and the risk of leakage is low; on the other hand, due to the single-phase circulation cooling, there is no need for frequent liquid replenishment operations, thereby ensuring the safe and long-term reliable operation of the liquid cooler.

[0037] Based on the above embodiments, in order to ensure operational reliability, such as Figure 2As shown, there are two secondary chambers 12, symmetrically arranged on both sides of the primary chamber 11. This symmetrical structure improves the uniformity of heat dissipation. Similarly, in this embodiment, there are two heat exchange mechanisms 2, each placed within one of the two secondary chambers 12. The two heat exchange mechanisms 2 ensure the supercomputer can operate without downtime. Therefore, in this embodiment, one of the heat exchange mechanisms 2 serves as a backup. That is, while one heat exchange mechanism 2 is running, the other is on standby. When the running heat exchange mechanism 2 malfunctions and requires maintenance, the other heat exchange mechanism 2 can be activated as a replacement, thus ensuring that the normal heat dissipation of the supercomputer is not affected.

[0038] Furthermore, in embodiments of this utility model, to further improve heat dissipation performance, such as... Figure 2 As shown, the primary chamber 11 has an inverted U-shaped structure that is wider at the top and narrower at the bottom in its width direction. It includes an upper wide cavity 111 and a lower narrow cavity 112 that are interconnected. The opening at the top of the upper wide cavity 111 is adapted to the cover 3, and the width of the lower narrow cavity 112 is not less than that of the heat source to be immersed. With the upper wide and lower narrow structure, since the coolant flows upward when heated, the upper part has a larger volume due to the upper wide cavity 111. The higher-temperature coolant has more space in the upper wide cavity 111. This structure can transfer more heat to the upper part, improving the smoothness of the coolant flow from the bottom to the top. Moreover, the upper wide and lower narrow structure also facilitates the placement of heat sources such as supercomputers, improving the convenience of operation.

[0039] In the embodiments of this utility model, please continue to refer to... Figure 2 The secondary chamber 12 is located within the space formed by the upper wide chamber 111, the lower narrow chamber 112, and the outer wall of the cabinet 1. The water inlet pipe 21 is connected to the upper wide chamber 111, and the water outlet pipe 22 is connected to the lower narrow chamber 112. Specifically, in this embodiment of the invention, the water inlet pipe 21 is connected to the bottom wall of the upper wide chamber 111, and the water outlet pipe 22 is connected to the bottom of the side wall of the lower narrow chamber 112. This structural design allows for more comprehensive extraction of the coolant with higher temperature from the upper part, improving heat exchange efficiency. Furthermore, the coolant with the lowest temperature after heat exchange is injected into the bottom of the lower narrow chamber 112, forming a complete circulation loop from bottom to top.

[0040] In embodiments of this utility model, to further improve the reliability of heat dissipation in the liquid cooler, such as... Figure 2As shown, a level gauge 13 is installed in the primary chamber 11, and thermometers 21a are installed on both the inlet pipe 21 and the outlet pipe 22. An alarm is also included, electrically connected to the level gauge 13 and the thermometers 21a. The alarm is configured to sound an alarm when the liquid level measured by the level gauge 13 is lower than a set value or when the difference between the thermometers 21a on the inlet pipe 21 and the outlet pipe 22 is greater than a set value. The level gauge 13 allows for real-time monitoring of the coolant level, facilitating timely detection of leaks, insufficient coolant, or when the coolant level in the liquid coolant cabinet is lower than the height of the cooling circulation loop. The thermometers 21a on the inlet and outlet pipes 21 and 22 allow for real-time monitoring of the coolant temperature, thereby improving the reliability of heat dissipation.

[0041] Please refer to Figure 4 In this embodiment of the invention, to facilitate the replenishment, replacement, or drainage of coolant, a replenishment valve 14 communicating with the outside is also provided at the bottom of the primary chamber 11. In this embodiment of the invention, the replenishment valve 14 can be equipped with a solenoid valve. When the level gauge 13 detects that the liquid level has dropped to a height where circulation convection is impossible, an alarm is issued, and the coolant is replenished through the replenishment valve 14 to a level sufficient to ensure proper cooling. Figure 2 The height of the circulating cooling circuit is shown in the diagram. It should also be noted that the replenishing valve 14 is located at the bottom of the primary chamber 11 and can also be used for draining coolant, ensuring complete drainage and reliability during coolant replacement. Furthermore, the solenoid valve on the replenishing valve 14 automatically opens when the level gauge 13 detects insufficient coolant level, further guaranteeing cooling reliability.

[0042] Furthermore, in this embodiment of the invention, the bottom of the secondary chamber 12 is open to the outside for communication with an external cooling medium, and the boiling point of the coolant placed in the primary chamber 11 is not less than 100 degrees Celsius. It should be noted that the external cooling medium can be air or a flowing cooling medium, such as water. This structural design can further improve the heat exchange effect of the heat exchanger 23.

[0043] Regarding the specific structure of the cover 3, please refer to some embodiments of this utility model. Figure 2 , Figure 3 as well as Figure 5 and Figure 6One end of the cover 3 is hinged to the cabinet 1, and the other end of the cover 3 has a latch 31 that cooperates with the cabinet 1. This design allows one end of the cover 3 to be lifted when the latch 31 is unlocked, and the cover 3 to be reliably fixed by the latch 31 when closed. Furthermore, in this embodiment of the invention, to improve the ease of operation of the cover 3, a handle 32 is provided on the latch 31 side of the cover 3, and gas springs 33 are rotatably connected to the cabinet 1 on both sides of the cover 3. The gas springs 33 can keep the cover 3 open when it is open, thus facilitating the placement or inspection of items by the operator.

[0044] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A single-phase liquid-cooled cabinet, characterized by, include: The cabinet has a primary chamber and at least one secondary chamber that are isolated from each other. The primary chamber is used to hold coolant and immerse a heat source. A heat exchange mechanism is disposed in the secondary chamber, and the heat exchange mechanism has an inlet pipe communicating with the primary chamber, an outlet pipe communicating with the primary chamber, and a heat exchanger and a liquid driving device connected between the inlet pipe and the outlet pipe. A cover is attached to the cabinet, the cabinet having an opening in at least the primary chamber, and the cover is used to seal the opening of the cover. The heat exchange mechanism is used to drive the coolant in the primary chamber to the heat exchanger for heat exchange and then inject it back into the primary chamber to form a cooling circulation loop.

2. The single-phase liquid cooler according to claim 1, characterized in that, The secondary chambers are two in number and are symmetrically arranged on both sides of the primary chamber.

3. The single-phase liquid cooler according to claim 2, characterized in that, The heat exchange mechanism has two parts, and each part is placed in one of the two secondary chambers.

4. The single-phase liquid cooler according to claim 3, characterized in that, One of the two heat exchange mechanisms is kept as a backup.

5. The single-phase liquid cooler according to claim 1, characterized in that, The primary chamber forms an inverted U-shaped structure that is wider at the top and narrower at the bottom in its width direction, including an upper wide cavity and a lower narrow cavity that are interconnected. The opening at the top of the upper wide cavity is adapted to the cover body, and the width of the lower narrow cavity is not less than that of the heat source to be immersed.

6. The single-phase liquid cooler according to claim 5, characterized in that, The secondary chamber is located within the space formed by the upper wide chamber, the lower narrow chamber, and the outer wall of the cabinet. The water inlet pipe is connected to the upper wide chamber, and the water outlet pipe is connected to the lower narrow chamber.

7. The single-phase liquid cooler according to claim 1, characterized in that, The primary chamber is also equipped with a level gauge, and both the inlet and outlet water pipes are equipped with thermometers. An alarm is also included that is electrically connected to the level gauge and the thermometer. The alarm is configured to sound an alarm when the level gauge measures a liquid level that is less than a set value or when the difference between the thermometer reading on the inlet water pipe and the thermometer reading on the outlet water pipe is greater than a set value.

8. The single-phase liquid cooler according to claim 1, characterized in that, The bottom of the primary chamber is also equipped with a replenishment valve that communicates with the outside.

9. The single-phase liquid cooler according to claim 1, characterized in that, The bottom of the secondary chamber is open to the outside and is used to communicate with the external cooling medium. The boiling point of the coolant placed in the primary chamber is not less than 100 degrees Celsius.

10. The single-phase liquid cooler according to claim 1, characterized in that, One end of the cover is hinged to the cabinet, and the other end of the cover has a latch that cooperates with the cabinet. The cover has a handle on the latch side, and the cover also has gas springs on both sides that are rotatably connected to the cabinet.

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