Liquid cooling system

Abstract

The embodiment of the utility model provides a liquid cooling system which comprises a cooling capacity distribution module, the cooling capacity distribution module is provided with a plurality of heat exchanger units, each heat exchanger unit comprises a heat exchanger, a primary side liquid inlet pipeline and a primary side liquid return pipeline, and the primary side liquid inlet pipeline and the primary side liquid return pipeline are communicated with a heat dissipation module and the primary side of the heat exchanger to form a circulation pipeline; the secondary side liquid supply pipeline and the secondary side liquid return pipeline are communicated with the liquid cooling server and the secondary side of the heat exchanger to form a circulating pipeline; the primary side liquid inlet pipelines, the primary side liquid return pipelines, the secondary side liquid supply pipelines and the secondary side liquid return pipelines are connected in parallel through double valves respectively, so that when any part breaks down or any point leaks, online maintenance can be carried out under the state that tail end equipment does not stop, and a heat exchanger unit can be replaced online. The liquid cooling system is high in flexibility, redundancy and maintainability.

Description

A liquid cooling system Technical Field

[0001] This application relates to the field of heat dissipation technology for electrical components, and more specifically, to a liquid cooling system. Background Technology

[0002] The data center liquid cooling system consists of the cooling object, secondary side piping system, heat exchange unit (CDU), primary side piping system, Manifold, main control system, etc., and can achieve efficient heat dissipation of the cold plate system.

[0003] Heat exchange unit (CDU): The CDU system is powered by a water pump to provide the cooling medium. It transfers the heat from the secondary-side ICT equipment to the primary side within a plate heat exchanger, where it is carried away by primary-side heat dissipation equipment such as cooling towers or chillers.

[0004] It is evident that CDU (Channel Cooling Unit) equipment is the core component of a data center liquid cooling system. However, current CDUs on the market are all single-channel liquid supply systems, which does not meet the requirements for online maintenance. This means that any component failure in a CDU necessitates system shutdown for repair, making routine maintenance extremely inconvenient. Secondly, large and medium-sized projects typically involve significant heat exchange, requiring multiple plate heat exchangers. Current CDU equipment on the market only has one heat exchanger, failing to allow for customized configuration based on project load. Simply piling up multiple CDUs to meet requirements increases the overall project cost. Summary of the Invention

[0005] This application provides a liquid cooling system to solve the problems of existing liquid cooling systems that generally use a single-path liquid supply and return system, where failure or leakage at any location can cause the entire equipment to become unusable and daily maintenance is inconvenient.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] A liquid cooling system includes a liquid-cooled server, a heat dissipation module, and a cooling capacity distribution module;

[0008] The cooling capacity distribution module includes several heat exchanger units. Each heat exchanger unit includes a heat exchanger, a primary-side liquid inlet pipe and a primary-side liquid return pipe that form a circulation pipeline connected to the heat dissipation module and the primary side of the heat exchanger, and a secondary-side liquid supply pipe and a secondary-side liquid return pipe that form a circulation pipeline connected to the liquid-cooled server and the secondary side of the heat exchanger. The primary-side liquid inlet pipes, the primary-side liquid return pipes, the secondary-side liquid supply pipes, and the secondary-side liquid return pipes are respectively connected in parallel via dual valves.

[0009] Optionally, a first valve is provided on any of the primary side inlet pipes, a second valve is provided on any of the primary side return pipes, a third valve is provided on any of the secondary side supply pipes, and a fourth valve is provided on any of the secondary side return pipes.

[0010] Optionally, the cooling capacity distribution module further includes:

[0011] The primary side heat dissipation equipment liquid supply pipeline has one end connected in series with the pipeline formed by parallel connection of each of the primary side liquid inlet pipelines, and the other end connected to the liquid supply end of the heat dissipation module.

[0012] The primary side heat dissipation equipment has a return liquid pipeline, one end of which is connected in series with the pipeline formed by the parallel connection of each of the primary side return liquid pipelines, and the other end is connected to the return liquid end of the heat dissipation module.

[0013] Optionally, the cooling capacity distribution module further includes a fifth valve located on the liquid supply pipeline of the primary side heat dissipation equipment.

[0014] Optionally, the cooling capacity distribution module further includes a sixth valve located on the return liquid pipeline of the primary side heat dissipation equipment.

[0015] Optionally, the cooling capacity distribution module further includes:

[0016] The secondary server liquid inlet pipeline has one end connected in series with the pipeline formed by the parallel connection of each of the secondary liquid supply pipelines, and the other end connected to the liquid inlet end of the liquid-cooled server.

[0017] The secondary-side server return liquid pipeline has one end connected in series with the pipeline formed by the parallel connection of each of the secondary-side return liquid pipelines, and the other end connected to the return liquid end of the liquid-cooled server.

[0018] Optionally, the cooling capacity distribution module further includes:

[0019] A first transmission device, a seventh valve, and an eighth valve are provided on the return pipeline of the secondary side server, with the seventh valve and the eighth valve located on both sides of the first transmission device.

[0020] Optionally, the cooling capacity distribution module further includes:

[0021] The ninth valve is installed on the liquid inlet pipeline of the secondary side server.

[0022] Optionally, the liquid supply pipeline of the primary side heat dissipation device and the liquid return pipeline of the primary side heat dissipation device are two sets respectively;

[0023] The secondary side server inlet pipeline and the secondary side server return pipeline are two sets of each.

[0024] Optionally, the heat dissipation module includes a cooling tower and a water pump, the cooling tower and the water pump being connected to the primary side liquid inlet pipeline respectively.

[0025] The liquid cooling system provided in this application includes a liquid-cooled server, a heat dissipation module, and a cooling capacity distribution module. The cooling capacity distribution module includes several heat exchanger units. Each heat exchanger unit includes a heat exchanger, a primary-side liquid inlet pipe and a primary-side liquid return pipe that form a circulation pipeline connected to the heat dissipation module and the primary side of the heat exchanger, and a secondary-side liquid supply pipe and a secondary-side liquid return pipe that form a circulation pipeline connected to the secondary side of the liquid-cooled server and the heat exchanger. The primary-side liquid inlet pipes, the primary-side liquid return pipes, the secondary-side liquid supply pipes, and the secondary-side liquid return pipes are respectively connected in parallel via dual valves.

[0026] The liquid cooling system provided in this application embodiment has the following technical advantages compared to the prior art:

[0027] The liquid cooling system includes a cooling capacity distribution module with several heat exchanger units. Each heat exchanger unit includes a heat exchanger, a primary-side liquid inlet pipe, and a primary-side liquid return pipe. The primary-side liquid inlet and return pipes are connected to the heat dissipation module and the primary side of the heat exchanger to form a circulation pipeline. The secondary-side liquid supply and return pipes are connected to the liquid cooling server and the secondary side of the heat exchanger to form a circulation pipeline. The primary-side liquid inlet pipes, primary-side liquid return pipes, secondary-side liquid supply pipes, and secondary-side liquid return pipes are connected in parallel via dual valves. This allows for online maintenance and online replacement of heat exchanger units in case of failure of any component or leakage at any point. The liquid cooling system has strong flexibility, redundancy, and ease of maintenance. Attached Figure Description

[0028] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0029] Figure 1 is a schematic diagram of a liquid cooling system provided in an embodiment of this application.

[0030] The following labels are shown in the attached diagram:

[0031] Heat exchanger 1, primary side liquid inlet pipe 2, primary side liquid return pipe 3, secondary side liquid supply pipe 4, secondary side liquid return pipe 5, first valve 6, second valve 7, third valve 8, fourth valve 9, primary side heat dissipation equipment liquid supply pipe 10, primary side heat dissipation equipment liquid return pipe 11, fifth valve 12, sixth valve 13, secondary side server liquid inlet pipe 14, secondary side server liquid return pipe 15, first transmission device 16, seventh valve 17, eighth valve 18, ninth valve 19. Detailed Implementation

[0032] This utility model discloses a liquid cooling system to solve the problems of existing liquid cooling systems, which generally use a single-path liquid supply and return system, and where failure or leakage at any location can cause the entire equipment to become unusable and daily maintenance is inconvenient.

[0033] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0034] Please refer to Figure 1, which is a schematic diagram of the structure of a liquid cooling system provided in an embodiment of this application.

[0035] In one specific implementation, the liquid cooling system includes a liquid-cooled server, a heat dissipation module, and a cooling capacity distribution module.

[0036] The cooling capacity distribution module includes several heat exchanger units 1. Each heat exchanger unit 1 includes a heat exchanger 1, a primary side liquid inlet pipe 2 and a primary side liquid return pipe 3 that form a circulation pipeline connected to the heat dissipation module and the primary side of the heat exchanger 1, and a secondary side liquid supply pipe 4 and a secondary side liquid return pipe 5 that form a circulation pipeline connected to the liquid cooling server and the secondary side of the heat exchanger 1. The primary side liquid inlet pipes 2, the primary side liquid return pipes 3, the secondary side liquid supply pipes 4, and the secondary side liquid return pipes 5 are respectively connected in parallel via double valves.

[0037] Each heat exchanger unit 1 has its primary side connected to the heat dissipation module and its secondary side connected to the liquid-cooled server. A secondary-side pump drives the high-temperature return water into the secondary-side circulation pipeline, which then enters each heat exchanger unit 1 to indirectly exchange heat with the low-temperature water on the primary side. This process reduces the high-temperature water on the secondary side to the low-temperature water required by the liquid-cooled server and other terminal equipment. Specifically, the primary-side inlet pipeline 2 is connected to the liquid supply end of the heat dissipation module, and the primary-side return pipeline 3 is connected to the return end of the heat dissipation module; the secondary-side supply pipeline 4 is connected to the liquid supply end of the liquid-cooled server, and the secondary-side return pipeline 5 is connected to the return end of the liquid-cooled server.

[0038] It is understandable that the pipes of several heat exchanger units 1 are connected in parallel. Taking a cooling capacity distribution module with 4 heat exchanger units 1 as an example, each heat exchanger unit 1 has a primary side inlet pipe 2, a primary side return pipe 3, a secondary side supply pipe 4, and a secondary side return pipe 5. Among them, the 4 primary side inlet pipes 2 are connected in parallel through the primary side main inlet pipe, and two valves are installed between two adjacent primary side inlet pipes 2 on the primary side main inlet pipe. Similarly, the 4 primary side return pipes 3 are connected in parallel through the primary side main return pipe, specifically, two valves are installed between two adjacent primary side return pipes 3 on the primary side main return pipe. Four secondary-side liquid supply lines 4 are connected in parallel via a secondary-side main liquid inlet line. Specifically, two valves are installed between two adjacent secondary-side liquid supply lines 4 on the secondary-side main liquid inlet line. Four secondary-side liquid return lines 5 are connected in parallel via a secondary-side main liquid return line. Specifically, two valves are installed between two adjacent secondary-side liquid return lines 5 on the secondary-side main liquid return line. The valves mentioned above are control valves. When any component fails or leakage occurs at any point, the system can be shut down through the valves. Online maintenance can be performed without shutting down the terminal equipment, and online replacement of system components is possible. The above liquid cooling system has strong flexibility, redundancy, and ease of maintenance.

[0039] The liquid-cooled server has a server rack, which is connected to the secondary side liquid supply line 4 and the secondary side liquid return line 5 respectively; the heat dissipation module includes a cooling tower and a water pump, and the heat exchanger unit 1 forms a primary side loop through the primary side liquid inlet line 2, the primary side liquid return line 3, the cooling tower and the water pump.

[0040] Specifically, a first valve 6 is provided on any primary side inlet pipe 2, a second valve 7 is provided on any primary side return pipe 3, a third valve 8 is provided on any secondary side supply pipe 4, and a fourth valve 9 is provided on any secondary side return pipe 5. This arrangement allows for the shut-off of leaks at any point on the pipelines via the corresponding valves, enabling online maintenance without shutting down the terminal equipment. The first valve 6, second valve 7, third valve 8, and fourth valve 9 can have the same structure for ease of installation. Furthermore, each valve can be configured as a control valve, such as a solenoid valve, to facilitate intelligent control. In other embodiments, appropriate valves can be provided as needed, as long as the same technical effect is achieved.

[0041] Furthermore, the cooling capacity distribution module also includes:

[0042] The primary side heat dissipation equipment liquid supply pipeline 10 has one end connected in series with the pipeline after each primary side liquid inlet pipeline 2 is connected in parallel, and the other end is connected to the liquid supply end of the heat dissipation module.

[0043] The primary side heat dissipation equipment return liquid pipeline 11 has one end connected in series with the pipeline after each primary side return liquid pipeline 3 is connected in parallel, and the other end is connected to the return liquid end of the heat dissipation module.

[0044] One end of the primary side heat dissipation equipment liquid supply pipe 10 is connected to the liquid supply end of the heat dissipation module, and the other end is connected in series with the pipes that are connected in parallel with each primary side liquid inlet pipe 2. That is, the primary side heat dissipation equipment liquid supply pipe 10 is connected in series with the primary side main liquid inlet pipe. One end of the primary side heat dissipation equipment return pipe 11 is connected to the return end of the heat dissipation module, and the other end is connected in series with the pipes that are connected in parallel with each primary side return pipe 3. That is, the primary side heat dissipation equipment return pipe 11 is connected in series with the primary side main return pipe.

[0045] Meanwhile, in order to further effectively cut off leakage in each pipeline of the system, a fifth valve 12 is installed on the liquid supply pipeline 10 of the primary side heat dissipation equipment, and a sixth valve 13 is installed on the liquid return pipeline 11 of the primary side heat dissipation equipment. It can be understood that the fifth valve 12 and the sixth valve 13 are also set in the same way, such as being set as control valves, so that online maintenance can be performed without shutting down the terminal equipment.

[0046] In another embodiment, the cooling capacity distribution module further includes:

[0047] The secondary server liquid inlet pipe 14 has one end connected in series with the pipes that are connected in parallel with each of the secondary liquid supply pipes 4, and the other end connected to the liquid inlet end of the liquid-cooled server.

[0048] The secondary server return liquid pipeline 15 has one end connected in series with the pipeline formed by parallel connection of each secondary server return liquid pipeline 5, and the other end connected to the return liquid end of the liquid-cooled server.

[0049] One end of the secondary server liquid inlet pipe 14 is connected to the liquid inlet of the liquid-cooled server, and the other end is connected in series with the pipeline formed by parallel connection of each secondary side liquid supply pipe 4. That is, the secondary server liquid inlet pipe 14 is connected in series with the secondary side main liquid inlet pipe. One end of the secondary server liquid return pipe 15 is connected to the liquid return of the liquid-cooled server, and the other end is connected in series with the pipeline formed by parallel connection of each secondary side liquid return pipe 5. That is, the secondary server liquid return pipe 15 is connected in series with the secondary side main liquid return pipe. This is to effectively cut off leakage in each pipe of the system.

[0050] Furthermore, a first transmission device 16, a seventh valve 17, and an eighth valve 18 are respectively installed on the secondary server return pipeline 15. The seventh valve 17 and the eighth valve 18 are respectively located on both sides of the first transmission device 16 so that the pipeline can be effectively shut off in a timely manner when a leak occurs. At the same time, a ninth valve 19 is installed on the secondary server inlet pipeline 14 to further effectively shut off the pipeline in the event of a leak.

[0051] To improve system safety, the primary-side heat dissipation equipment supply pipe 10 and the primary-side heat dissipation equipment return pipe 11 are each in two sets; the secondary-side server inlet pipe 14 and the secondary-side server return pipe 15 are each in two sets. Preferably, the first set of the primary-side heat dissipation equipment supply pipe 10, primary-side heat dissipation equipment return pipe 11, secondary-side server inlet pipe 14, and secondary-side server return pipe 15 is located at the position corresponding to the first heat exchanger unit among the four heat exchanger units, and the second set of the primary-side heat dissipation equipment supply pipe 10, primary-side heat dissipation equipment return pipe 11, secondary-side server inlet pipe 14, and secondary-side server return pipe 15 is located at the position corresponding to the fourth heat exchanger unit among the four heat exchanger units, so that the system is reasonably distributed and easy to maintain.

[0052] The above system adopts a modular structure. The heat exchanger unit 1, the secondary server inlet pipeline 14, and the secondary server return pipeline 15 can be replaced with modules of different specifications and models according to different project requirements, or modules can be added or removed, such as heat exchanger unit 1, pump group, or valve and instrument module. At the same time, the installation position of each module is designed to facilitate replacement and maintenance, which has strong flexibility, redundancy and easy maintenance.

[0053] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0054] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A liquid cooling system, characterized in that, The system includes a liquid-cooled server, a heat dissipation module, and a cooling capacity distribution module. The cooling capacity distribution module includes several heat exchanger units. Each heat exchanger unit includes a heat exchanger, a primary-side liquid inlet pipe and a primary-side liquid return pipe that form a circulation pipeline connected to the heat dissipation module and the primary side of the heat exchanger, and a secondary-side liquid supply pipe and a secondary-side liquid return pipe that form a circulation pipeline connected to the secondary side of the liquid-cooled server and the heat exchanger. The primary-side liquid inlet pipes, the primary-side liquid return pipes, the secondary-side liquid supply pipes, and the secondary-side liquid return pipes are connected in parallel via dual valves.

2. The liquid cooling system according to claim 1, characterized in that, A first valve is provided on any of the primary side inlet pipes, a second valve is provided on any of the primary side return pipes, a third valve is provided on any of the secondary side supply pipes, and a fourth valve is provided on any of the secondary side return pipes.

3. The liquid cooling system according to claim 1, characterized in that, The cooling capacity distribution module further includes: a primary-side heat dissipation equipment liquid supply pipeline, one end of which is connected in series with a pipeline formed by parallel connection of each of the primary-side liquid inlet pipelines, and the other end of which is connected to the liquid supply end of the heat dissipation module; and a primary-side heat dissipation equipment liquid return pipeline, one end of which is connected in series with a pipeline formed by parallel connection of each of the primary-side liquid return pipelines, and the other end of which is connected to the liquid return end of the heat dissipation module.

4. The liquid cooling system according to claim 3, characterized in that, The cooling capacity distribution module also includes a fifth valve located on the liquid supply pipeline of the primary heat dissipation equipment.

5. The liquid cooling system according to claim 3, characterized in that, The cooling capacity distribution module also includes a sixth valve located on the return liquid pipeline of the primary side heat dissipation equipment.

6. The liquid cooling system according to claim 3, characterized in that, The cooling capacity distribution module further includes: a secondary-side server liquid inlet pipe, one end of which is connected in series with a pipe formed by paralleling each of the secondary-side liquid supply pipes, and the other end of which is connected to the liquid inlet end of the liquid-cooled server; and a secondary-side server liquid return pipe, one end of which is connected in series with a pipe formed by paralleling each of the secondary-side liquid return pipes, and the other end of which is connected to the liquid return end of the liquid-cooled server.

7. The liquid cooling system according to claim 6, characterized in that, The cooling capacity distribution module further includes: a first transmission device, a seventh valve, and an eighth valve located on the return liquid pipeline of the secondary server, wherein the seventh valve and the eighth valve are respectively located on both sides of the first transmission device.

8. The liquid cooling system according to claim 7, characterized in that, The cooling capacity distribution module also includes a ninth valve located on the liquid inlet pipeline of the secondary server.

9. The liquid cooling system according to claim 6, characterized in that, The primary-side heat dissipation equipment has two sets of liquid supply pipes and two sets of liquid return pipes; the secondary-side server has two sets of liquid inlet pipes and two sets of liquid return pipes.

10. The liquid cooling system according to claim 1, characterized in that, The heat dissipation module includes a cooling tower and a water pump, which are respectively connected to the primary side liquid inlet pipeline.

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