Gas-liquid mixing single-cycle heat exchange immersed liquid cooling equipment

By using gas-liquid mixed single-circulation heat exchange immersive liquid cooling equipment in the liquid cooling system in the data center, the problems of large heat loss, complex deployment, frequent maintenance and inability to ensure the internal temperature uniformity of the server in the existing liquid cooling system are solved, and a more efficient and simpler cooling solution is achieved.

CN222803268UActive Publication Date: 2025-04-25BEIJING FENGFU INTELLIGENT CHAIN TECH CO LTD
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Patent Information

Application Number
CN202421445629.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-21
Publication Date
2025-04-25
Estimated Expiration
2034-06-21

AI Technical Summary

Technical Problem

The existing liquid cooling systems have problems in the data center with large heat losses, complex deployment, frequent maintenance and inability to ensure internal temperature uniformity of the server.

Method used

The gas-liquid mixing single-circulation heat exchange immersion liquid cooling equipment is adopted. By mixing low-temperature coolant and nitrogen in the gas-liquid mixing chamber, the mixture of inert gas and liquid is used to achieve all the heating blind spots of the coolant reaching the server, ensuring the temperature uniformity of the server heating components.

Benefits of technology

Reduces heat loss, simplifies deployment and maintenance, ensures temperature uniformity within the server, and improves cooling efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of liquid cooling equipment, and discloses gas-liquid mixing single-cycle heat exchange immersed liquid cooling equipment, which comprises an equipment space and a refrigeration space, the equipment space is provided with a cooling tower or a dry cooler and a nitrogen making machine, the refrigeration space is provided with a server mounting groove, and the server mounting groove is provided with a gas-liquid separator. A flow guide plate is arranged at the position, close to the bottom, in the server installation groove, a server installation cavity is formed above the flow guide plate, a gas-liquid mixing cavity is formed below the flow guide plate, a plurality of through holes communicated with the server installation cavity are formed in the flow guide plate, a first pipeline is arranged between the gas-liquid mixing cavity and a water outlet of the cooling tower or the dry cooler, and a second pipeline is arranged between the gas-liquid mixing cavity and the water outlet of the dry cooler. A liquid outlet cavity is formed in the server mounting groove, the liquid outlet cavity communicates with the upper portion of the server mounting cavity, and a filter plate is arranged at the liquid inlet end of the liquid outlet cavity; the gas-liquid mixing single-cycle heat exchange immersed liquid cooling equipment provided by the utility model solves the problem that the existing cooling system cannot ensure the temperature uniformity in a server.
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Description

Technical Field

[0001] The utility model relates to the technical field of liquid cooling equipment, in particular to a gas-liquid mixed single-cycle heat exchange immersion type liquid cooling equipment. Background Art

[0002] At present, data centers often use liquid cooling systems to dissipate heat from electronic equipment in computer rooms. The servers in the computer rooms of data centers are equipped with cooling dispensing units (CDUs). The liquid cooling system dissipates heat from the servers through the cooling dispensing units. This process requires two heat exchanges, resulting in large heat losses. In addition, there will be two circulation loops in the two cycles, making pipeline deployment more complicated. Water needs to be used as a heat exchange medium, which requires periodic maintenance. In addition, liquid cooling cannot dissipate all the heat generated by the server. The liquid easily forms a heat accumulation zone inside the server, causing the temperature of some important components to be too high, and the temperature uniformity of the server's heat-generating components cannot be guaranteed. Utility Model Content

[0003] The utility model aims to provide a gas-liquid mixed single-cycle heat exchange immersion liquid cooling device to solve at least one of the above problems existing in the prior art.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A gas-liquid mixed single-cycle heat exchange immersion liquid cooling device, comprising an equipment space and a refrigeration space, wherein the equipment space is provided with a cooling tower or a dry cooler and a nitrogen generator, the refrigeration space is provided with a server mounting slot, a guide plate is provided near the bottom of the server mounting slot, the server mounting chamber is located above the guide plate, the gas-liquid mixing chamber is located below the guide plate, a plurality of through holes connected to the server mounting chamber are provided on the guide plate, a first pipe is provided between the gas-liquid mixing chamber and the water outlet of the cooling tower or the dry cooler, a liquid outlet chamber is provided on the server mounting slot, the liquid outlet chamber is connected to the upper part of the server mounting chamber, a filter plate is provided at the liquid inlet end of the liquid outlet chamber, a second pipe is provided between the liquid outlet chamber and the water inlet of the cooling tower or the dry cooler, and the gas-liquid mixing chamber is connected to the nitrogen generator via a third pipe.

[0006] In this technical solution, the low-temperature coolant is transported to the gas-liquid mixing chamber through the first pipeline. At the same time, the nitrogen generated by the nitrogen generator is transported to the gas-liquid mixing chamber through the third pipeline. In the gas-liquid mixing chamber, the nitrogen (inert gas) and the low-temperature coolant are dispersed and mixed and then enter the server installation chamber through the through holes on the guide plate to cool the server heating components in the server installation chamber. During the cooling process, the high-temperature coolant accumulates in the upper part of the server installation chamber, and then enters the liquid outlet chamber through the filter plate, and flows back to the cooling tower or dry cooler through the second pipeline. The above technical solution uses a cooling tower or dry cooler, a single cycle, and a waterless solution, which is more convenient to deploy and maintain, has less heat loss, and is simpler to deploy. The existing method of directly immersing the server in coolant to cool it is unable to reach some heating dead corners in the flow channel inside the server due to the influence of the kinematic viscosity of the pure liquid, and the temperature uniformity inside the server cannot be guaranteed. In the present technical solution, the coolant and nitrogen (inert gas) are mixed in the gas-liquid mixing chamber. The mixture of inert gas and liquid can enable the low-temperature liquid to reach various heating dead corners of the server, thereby ensuring the temperature uniformity of the heating components of the server.

[0007] Furthermore, in order to further improve the heat exchange effect, a plate heat exchanger is provided on the first pipeline, the water outlet of the cooling tower is connected to the water inlet of the plate heat exchanger through the first pipeline, and the water outlet of the plate heat exchanger is connected to the gas-liquid mixing chamber through the first pipeline.

[0008] Furthermore, the plate heat exchanger is connected to a compressor. In extreme weather conditions with an ambient temperature of 45 degrees, the compressor can enable the system to operate reliably, and has the low PUE advantage of liquid cooling, and will not significantly increase the annual average PUE.

[0009] Furthermore, in order to better achieve heat dissipation of the environment in the refrigeration space, it includes a box body, a partition is provided in the box body, the equipment space and the refrigeration space are located on both sides of the partition, and a negative pressure fan is provided on the partition, and the negative pressure fan discharges the hot air in the refrigeration space.

[0010] Furthermore, in order to facilitate the lifting of the server installation slot into the refrigeration space and improve the convenience of installation, lifting rails are symmetrically arranged in the refrigeration space, and a traveling frame is provided on the lifting rails. The traveling frame is provided with traveling wheels, a traveling motor and a lifting motor. The traveling motor drives the traveling wheels to move along the lifting rails. A winding roller is provided on the output shaft of the lifting motor. A pull rope is wound around the winding roller, and the end of the pull rope is connected to the hanging position of the server installation slot.

[0011] Furthermore, in order to facilitate the connection between the equipment in the refrigeration space and the power supply, a PDU socket is provided on the box body, and the PDU socket is located in the refrigeration space.

[0012] Furthermore, in order to provide air cooling for other electrical equipment, an air cooling cabinet is provided in the refrigeration space.

[0013] Furthermore, in order to facilitate the on-site installation of the entire device, the box body includes a frame structure and a movable plate detachably fixedly mounted on the frame structure.

[0014] Furthermore, in order to ensure the closedness of the server installation slot, a cover plate is rotatably connected to the top of the server installation slot.

[0015] Furthermore, a plurality of server installation positions are provided in the server installation cavity, and adjacent server installation positions are separated by partition plates.

[0016] The beneficial effects of the utility model are as follows: in this technical solution, the low-temperature coolant is transported to the gas-liquid mixing chamber through the first pipeline, and at the same time, the nitrogen generated by the nitrogen generator is transported to the gas-liquid mixing chamber through the third pipeline. In the gas-liquid mixing chamber, the nitrogen (inert gas) and the low-temperature coolant are dispersed and mixed and then enter the server installation chamber through the through holes on the guide plate to cool the server heating components in the server installation chamber. During the cooling process, the high-temperature coolant accumulates in the upper part of the server installation chamber, and then enters the liquid outlet chamber through the filter plate, and flows back to the cooling tower or dry cooler through the second pipeline. The above technical solution uses a cooling tower or dry cooler, a single cycle, and a waterless solution, which is more convenient to deploy and maintain, has less heat loss, and is simpler to deploy. The existing method of directly immersing the server in coolant to cool it is unable to reach some heating dead corners in the flow channel inside the server due to the influence of the kinematic viscosity of the pure liquid, and the temperature uniformity inside the server cannot be guaranteed. In the present technical solution, the coolant and nitrogen (inert gas) are mixed in the gas-liquid mixing chamber. The mixture of inert gas and liquid can enable the low-temperature liquid to reach various heating dead corners of the server, thereby ensuring the temperature uniformity of the heating components of the server. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a principle block diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the hidden components of the utility model;

[0020] Figure 4 for Figure 3 A partial enlarged view of the middle A;

[0021] Figure 5 This is a structural schematic diagram of the server installation slot in the utility model from the first perspective;

[0022] Figure 6 This is a structural schematic diagram of the server installation slot in the utility model from a second viewing angle;

[0023] Figure 7 It is a schematic diagram of the local structure of the hoisting track part in the utility model.

[0024] In the figure: equipment space 1; refrigeration space 2; cooling tower 3; nitrogen generator 4; server installation slot 5; guide plate 6; server installation cavity 7; gas-liquid mixing cavity 8; through hole 9; first pipeline 10; liquid outlet cavity 11; filter plate 12; second pipeline 13; box body 15; partition 16; negative pressure fan 17; lifting rail 18; walking frame 19; walking wheel 20; PDU socket 21; air cooling cabinet 22; movable plate 23; cover plate 24; partition plate 25; server 26; reinforcement structure 27; lifting motor 28; winding roller 29. DETAILED DESCRIPTION

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the utility model will be briefly introduced below in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the utility model, but does not constitute a limitation of the utility model.

[0026] Embodiment 1:

[0027] like Figure 1-Figure 7 As shown, this embodiment provides a gas-liquid mixed single-cycle heat exchange immersion liquid cooling device, including an equipment space 1 and a refrigeration space 2, the equipment space 1 is provided with a cooling tower 3 or a dry cooler and a nitrogen generator 4, the refrigeration space 2 is provided with a server installation slot 5, a guide plate 6 is provided near the bottom of the server installation slot 5, the upper part of the guide plate 6 is a server installation chamber 7, the lower part of the guide plate 6 is a gas-liquid mixing chamber 8, the guide plate 6 is provided with a plurality of through holes 9 connected with the server installation chamber 7, a first pipe 10 is provided between the gas-liquid mixing chamber 8 and the water outlet of the cooling tower 3 or the dry cooler, a liquid outlet chamber 11 is provided on the server installation slot 5, the liquid outlet chamber 11 is connected with the upper part of the server installation chamber 7, a filter plate 12 is provided at the liquid inlet end of the liquid outlet chamber 11, a second pipe 13 is provided between the liquid outlet chamber 11 and the water inlet of the cooling tower 3 or the dry cooler, and the gas-liquid mixing chamber 8 is connected with the nitrogen generator 4 through a third pipe.

[0028] In this technical solution, the low-temperature coolant is transported to the gas-liquid mixing chamber 8 through the first pipe 10. At the same time, the nitrogen generated by the nitrogen generator 4 is transported to the gas-liquid mixing chamber 8 through the third pipe. In the gas-liquid mixing chamber 8, the nitrogen (inert gas) and the low-temperature coolant are dispersed and mixed and then enter the server installation chamber 7 through the through hole 9 on the guide plate 6 to cool the heat-generating components of the server 26 in the server installation chamber 7. During the cooling process, the high-temperature coolant accumulates in the upper part of the server installation chamber 7, and then enters the liquid outlet chamber 11 through the filter plate 12, and flows back to the cooling tower 3 or the dry cooler through the second pipe 13. The above technical solution uses a cooling tower 3 or a dry cooler, a single cycle, and a waterless solution, which is more convenient to deploy and maintain, has less heat loss, and is simpler to deploy. The existing method of directly immersing the server in coolant to cool it is unable to reach some heating dead corners in the flow channel inside the server due to the influence of the kinematic viscosity of the pure liquid, and the temperature uniformity inside the server cannot be guaranteed. In the present technical solution, the coolant and nitrogen (inert gas) are mixed in the gas-liquid mixing chamber 8. The mixture of inert gas and liquid can enable the low-temperature liquid to reach various heating dead corners of the server, thereby ensuring the temperature uniformity of the heating components of the server.

[0029] Embodiment 2:

[0030] This embodiment is optimized based on the above-mentioned embodiment 1.

[0031] In order to further improve the heat exchange effect, a plate heat exchanger is provided on the first pipe 10 , the water outlet of the cooling tower 3 is connected to the water inlet of the plate heat exchanger through the first pipe 10 , and the water outlet of the plate heat exchanger is connected to the gas-liquid mixing chamber 8 through the first pipe 10 .

[0032] Embodiment 3:

[0033] This embodiment is optimized based on the above-mentioned embodiment 2.

[0034] The plate heat exchanger is connected to a compressor. In extreme weather conditions with an ambient temperature of 45 degrees, the compressor can enable the system to operate reliably and has the low PUE advantage of liquid cooling, which will not significantly increase the annual average PUE.

[0035] Embodiment 4:

[0036] This embodiment is optimized based on the above-mentioned embodiment 1.

[0037] In order to better achieve heat dissipation of the environment in the refrigeration space 2, a box body 15 is included, a partition 16 is arranged in the box body 15, the equipment space 1 and the refrigeration space 2 are located on both sides of the partition 16, and a negative pressure fan 17 is arranged on the partition 16. The negative pressure fan 17 discharges the hot air in the refrigeration space 2.

[0038] Embodiment 5:

[0039] This embodiment is optimized based on the above-mentioned embodiment 1.

[0040] In order to facilitate the lifting of the server installation slot 5 into the refrigeration space 2 and improve the convenience of installation, a lifting rail 18 is symmetrically arranged in the refrigeration space 2. The lifting rail 18 is an I-beam. A walking frame 19 is provided on the lifting rail 18. The walking frame 19 is provided with a walking wheel 20, a walking motor and a lifting motor 28. The walking motor drives the walking wheel 20 to move along the lifting rail 18. A winding roller 29 is provided on the output shaft of the lifting motor 28. A pull rope is wound around the winding roller 29, and the end of the pull rope is connected to the hanging position of the server installation slot 5.

[0041] Embodiment 6:

[0042] This embodiment is optimized based on the above-mentioned embodiment 4.

[0043] In order to facilitate the connection between the equipment in the refrigeration space 2 and the power supply, a PDU socket 21 is provided on the box body 15, and the PDU socket 21 is located in the refrigeration space 2.

[0044] Embodiment 7:

[0045] This embodiment is optimized based on the above-mentioned embodiment 1.

[0046] In order to cool other electrical equipment by air, an air cooling cabinet 22 is provided in the refrigeration space 2 .

[0047] Embodiment 8:

[0048] This embodiment is optimized based on the above-mentioned embodiment 4.

[0049] In order to facilitate the on-site installation of the entire device, the box body 15 includes a frame structure and a movable plate 23 detachably fixedly mounted on the frame structure.

[0050] Embodiment 9:

[0051] This embodiment is optimized based on the above-mentioned embodiment 1.

[0052] In order to ensure the closedness of the server installation slot 5 , a cover plate 24 is rotatably connected to the top of the server installation slot 5 .

[0053] Embodiment 10:

[0054] This embodiment is optimized based on the above-mentioned embodiment 1.

[0055] A plurality of server installation positions are arranged in the server installation cavity 7, and adjacent server installation positions are separated by partition plates 25, and servers 26 are installed at the server installation positions. In order to ensure the structural strength of the server installation slot 5, a reinforcement structure 27 is also arranged outside the server installation slot 5.

[0056] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A gas-liquid mixed single cycle heat exchange immersion liquid cooling equipment, characterized in that: It includes an equipment space and a refrigeration space, wherein the equipment space is provided with a cooling tower or a dry cooler and a nitrogen generator, the refrigeration space is provided with a server installation slot, a guide plate is provided near the bottom of the server installation slot, the server installation chamber is located above the guide plate, the gas-liquid mixing chamber is located below the guide plate, a plurality of through holes connected with the server installation chamber are provided on the guide plate, a first pipe is provided between the gas-liquid mixing chamber and the water outlet of the cooling tower or the dry cooler, a liquid outlet chamber is provided on the server installation slot, the liquid outlet chamber is connected with the upper part of the server installation chamber, a filter plate is provided at the liquid inlet end of the liquid outlet chamber, a second pipe is provided between the liquid outlet chamber and the water inlet of the cooling tower or the dry cooler, and the gas-liquid mixing chamber is connected with the nitrogen generator via a third pipe.

2. The gas-liquid mixed single cycle heat exchange immersion liquid cooling equipment according to claim 1, characterized in that: A plate heat exchanger is arranged on the first pipeline, the water outlet of the cooling tower is connected to the water inlet of the plate heat exchanger through the first pipeline, and the water outlet of the plate heat exchanger is connected to the gas-liquid mixing chamber through the first pipeline.

3. The gas-liquid mixed single cycle heat exchange immersion liquid cooling equipment according to claim 2, characterized in that: The plate heat exchanger is connected to a compressor.

4. The gas-liquid mixed single cycle heat exchange immersion liquid cooling equipment according to claim 1, characterized in that: It comprises a box body, a partition is arranged in the box body, the equipment space and the refrigeration space are located on both sides of the partition, a negative pressure fan is arranged on the partition, and the negative pressure fan discharges the hot air in the refrigeration space.

5. The gas-liquid mixed single cycle heat exchange immersion liquid cooling equipment according to claim 1, characterized in that: A hoisting track is symmetrically arranged in the refrigeration space, a traveling frame is arranged on the hoisting track, a traveling wheel, a traveling motor and a hoisting motor are arranged on the traveling frame, the traveling motor drives the traveling wheel to travel along the hoisting track, a winding roller is arranged on the output shaft of the hoisting motor, a pull rope is wound around the winding roller, and an end of the pull rope is connected to the hanging position of the server installation slot.

6. The gas-liquid mixed single cycle heat exchange immersion liquid cooling equipment according to claim 4, characterized in that: The box body is provided with a PDU socket, and the PDU socket is located in the refrigeration space.

7. The gas-liquid mixed single cycle heat exchange immersion liquid cooling equipment according to claim 1, characterized in that: An air cooling cabinet is arranged in the refrigeration space.

8. The gas-liquid mixed single cycle heat exchange immersion liquid cooling device according to claim 4, characterized in that: The box body comprises a frame structure and a movable plate which is detachably fixedly mounted on the frame structure.

9. The gas-liquid mixed single cycle heat exchange immersion liquid cooling equipment according to claim 1, characterized in that: A cover plate is rotatably connected to the top of the server installation slot.

10. The gas-liquid mixed single cycle heat exchange immersion liquid cooling equipment according to claim 1, characterized in that: A plurality of server installation positions are arranged in the server installation cavity, and adjacent server installation positions are separated by partition plates.