Non-stop water changing system for liquid cooling host

Abstract

The utility model discloses a non-stop water changing system for a liquid cooling host, and belongs to the technical field of heat exchange systems of liquid cooling hosts. The system comprises a water supply pipe and a water return pipe in the liquid cooling system, and a pure water tank, a pressure gauge is arranged on the water return pipe, the water return pipe is connected with the pure water tank through a water replenishing pipe, and a water replenishing electric valve is arranged on the water replenishing pipe; the water supply pipe is connected with a water drainage pipe, and the water drainage pipe is sequentially provided with a water drainage electric valve and a water changing switch valve. The opening and closing of the drainage electric valve and the water replenishing electric valve are controlled by the pipeline pressure detected by the pressure gauge. According to the utility model, the pure water medium in the closed liquid cooling system can be replaced without influencing the operation of the liquid cooling host and the system, so that the usability of the operation of the data center and the system is greatly ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange systems for liquid-cooled mainframes, in particular to a non-stop water exchange system for liquid-cooled mainframes. Background Art

[0002] With the rapid development of artificial intelligence, big data, and cloud computing, computing power has become a core driver of digital transformation across all industries. At the same time, its importance has become increasingly prominent. With the explosive growth in computing power demand, general-purpose computing, intelligent computing, and supercomputing data centers are carrying an increasing number of complex computing tasks. These data centers consume extremely high amounts of energy and place extremely high demands on fast and stable heat dissipation. Considering both stable heat dissipation and energy conservation, liquid cooling solutions have become an inevitable choice.

[0003] In liquid cooling solutions, water remains the dominant coolant. Ensuring the purity of the pure water medium is a key concern for liquid-cooled data centers. When the pure water quality deteriorates, replacing it without impacting the stable operation of the existing system remains a pressing challenge for data centers.

[0004] Existing technology primarily addresses the issue of gas in the pipelines, which can occur during long-term operation of closed liquid cooling systems due to evaporation of the liquid. By adding a pressure gauge and an exhaust valve to the pipeline, the pressure gauge is used to monitor the pipeline pressure. When the pressure drops below a set threshold, the constant-pressure water replenishment device activates, replenishing the pipeline with water, and exhausting the gas through the exhaust valve. When the pipeline pressure exceeds the set threshold, the constant-pressure water replenishment device stops, terminating the water replenishment.

[0005] Figure 1 This is the currently common constant-pressure water replenishment solution. When the pressure gauge detects that the pressure in the pipeline is lower than 1.3 bar, the electric valve will automatically open slowly. At this time, water will be replenished from the pure water tank to the return water pipeline. During the water replenishment process, the pressure gauge will continue to detect the pipeline pressure. When the pipeline pressure rises to 1.5 bar, the electric valve will automatically close and the water replenishment is completed.

[0006] The long-term operation of pure water media in the closed liquid cooling system of the data center causes the water quality to deteriorate, which may affect the stable operation of the system. Regular full water replacement will cause system operation interruption and affect the overall operation of the system.

[0007] Existing technical solutions haven't yet addressed the issue of deteriorating pure water quality in closed systems due to prolonged operation. The common practice is to manually shut down the data center's liquid cooling system and related equipment, have maintenance personnel completely replace the cooling medium, and then restart the related systems and hosts after the water replacement is complete. This has the following drawbacks:

[0008] (1) The need to shut down the liquid cooling host and related systems in the data center greatly reduces the availability of the data center;

[0009] (2) Shutting down the liquid-cooled host and related systems may cause safety issues such as the host or system being unable to start or recover.

[0010] In view of this, the present utility model is proposed. Utility Model Content

[0011] In order to solve the problems of the prior art, the present invention provides a non-stop water replacement system for a liquid-cooled host. The technical solution is as follows:

[0012] A non-stop water exchange system for a liquid-cooled host computer comprises: a water supply pipe and a return pipe in the liquid cooling system, and a pure water tank; a pressure gauge is provided on the return pipe, the return pipe is connected to the pure water tank via a make-up pipe, and a make-up water electric valve is provided on the make-up water pipe; a drain pipe is connected to the water supply pipe, and a drain electric valve and a water exchange switch valve are provided on the drain pipe in sequence; the opening and closing of the drain electric valve and the make-up water electric valve are controlled by the pipeline pressure detected by the pressure gauge.

[0013] Furthermore, the water supply pipe is provided with an automatic exhaust valve for automatically exhausting the gas in the liquid cooling system.

[0014] Furthermore, the return water pipe is provided with an automatic exhaust valve for automatically exhausting the gas in the liquid cooling system.

[0015] Furthermore, the end of the drain pipe is connected to a floor drain.

[0016] Furthermore, a flow meter is provided on the drain pipe for measuring the flow rate during the draining process.

[0017] Furthermore, a sampling faucet is provided on the drain pipe for extracting liquid samples for detection and analysis.

[0018] Furthermore, the water changing operation is started by opening the water changing switch valve.

[0019] Furthermore, during the water changing operation, when the pipeline pressure detected by the pressure gauge is not less than 1.5 bar, the pressure gauge controls the water drain electric valve to open.

[0020] Furthermore, during the water change operation, when the pipeline pressure detected by the pressure gauge is less than 1.45 bar, the pressure gauge controls the water supply electric valve to open.

[0021] Furthermore, during the water change operation, the openings of the water drain electric valve and the water replenishment electric valve are controlled to maintain the pipeline pressure detected by the pressure gauge within the range of 1.4 bar to 1.45 bar.

[0022] The technical solution provided by the embodiment of the present utility model can replace the pure water medium in the closed liquid cooling system without affecting the operation of the liquid cooling host and the system, thereby greatly ensuring the availability of the data center and the system operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 It is a water replenishment principle diagram in the prior art;

[0025] Figure 2 This is a structural diagram of a non-stop water replacement system for a liquid-cooled host provided by the utility model. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] The present invention provides a non-stop water replacement system for a liquid-cooled host. Figure 2 , including: water supply pipe 1, return pipe 2 and pure water tank 3.

[0028] The water supply pipe 1 and the return pipe 2 are the water supply pipes and return pipes in the liquid cooling system. As an important part of the liquid cooling system, the water supply pipe 1 is responsible for transporting the cooling liquid to various parts that need cooling, and the return pipe 2 recovers the liquid after heat exchange so that the cooling cycle can be carried out again.

[0029] Both the water supply pipe 1 and the return pipe 2 are provided with automatic exhaust valves 5, which can automatically discharge the gas in the liquid cooling system to prevent air blockage from affecting the flow of the coolant. For the water supply pipe 1, the removal of gas can ensure that the cooling liquid flows smoothly to the parts that need cooling, and prevent problems such as poor water flow and unstable pressure caused by gas accumulation, thereby ensuring the efficiency and stability of the cooling effect. The automatic exhaust valve is provided on the return pipe 2 to prevent gas from entering the system circulation with the returning coolant and affecting the subsequent cooling process. Such a design helps to maintain the good operating state of the liquid cooling system and improve the reliability and service life of the system.

[0030] A pressure gauge 6 is provided on the return pipe 2 for real-time monitoring of the pressure of the liquid cooling system. If the return pipe pressure is too low (less than 1.45 bar), it may indicate coolant leakage, abnormal operation of the pump or other problems in the system, and water replenishment operation is required; if the return pipe pressure is too high (greater than 1.5 bar), it may indicate abnormal coolant flow or other fault conditions, and water drainage operation is required.

[0031] The pressure gauge 6 can also prompt people to troubleshoot problems in a timely manner, ensuring that the liquid cooling system can operate continuously and stably, and providing reliable cooling protection for the equipment.

[0032] The return water pipe 2 is connected to the pure water tank 3 via the water supply pipe 4, and a water supply electric valve 7 is provided on the water supply pipe 4. The pure water tank 3 serves to store and supply coolant in the liquid cooling system. The coolant in the pure water tank 3 can flow into the return water pipe 2 through the water supply pipe 4 and then be replenished to the entire liquid cooling system. The water supply electric valve 7 provided on the water supply pipe 4 serves to precisely control the replenishment of coolant. The water supply electric valve can automatically open or close according to the needs of the system. When the system detects that the coolant is insufficient, the electric valve opens, allowing the coolant in the pure water tank to flow in; when the coolant reaches the appropriate amount, the electric valve closes and replenishment stops. This design not only ensures the stable operation of the liquid cooling system, but also avoids the waste caused by excessive coolant replenishment and possible system pressure problems. At the same time, the automated control of the electric valve improves the reliability and operational convenience of the system and reduces the need for manual intervention.

[0033] The water supply pipe 1 is connected to a drain pipe 8 , the end of which is connected to a floor drain, and a drain electric valve 9 and a water exchange switch valve 11 are sequentially arranged on the drain pipe 8 .

[0034] The end of the drain pipe 8 is connected to the floor drain to ensure that when the liquid needs to be discharged, it can be safely guided to a suitable discharge location to avoid affecting the surrounding environment.

[0035] The electric drain valve 9 on the drain pipe 8 automatically controls the drain process. When liquid needs to be drained, the valve automatically opens according to system instructions, enabling fast and accurate draining. The water change valve 11 is specifically designed to control water changes. When the system's coolant needs to be replaced, this valve can be opened and closed to control the process.

[0036] The opening and closing of the drain valve 9 and the fill valve 7 are controlled by the pipeline pressure detected by the pressure gauge 6. During water exchange, when the pipeline pressure is at least 1.5 bar, the drain valve 9 will begin to open slowly; when the pipeline pressure is less than 1.45 bar, the fill valve 7 will gradually open. During water exchange, the opening of the drain valve 9 and the fill valve 7 is controlled so that the pipeline pressure is always maintained within the range of 1.4 bar to 1.45 bar.

[0037] The drain pipe 8 may also be provided with a flow meter 10, which can measure the flow rate during the draining process and provide the operator with accurate data on the draining situation so as to better understand the system status.

[0038] The drain pipe 8 may also be provided with a sampling tap 12, which allows the operator to extract liquid samples for testing and analysis at any time to ensure that the quality and performance of the coolant meet the system requirements.

[0039] The utility model is a non-stop water changing system for liquid-cooled mainframes. When it is necessary to replace the pure water medium without stopping, the water changing switch valve 11 on the drain pipe 8 will be opened first; at this time, the pressure gauge 6 will monitor the pipeline pressure in real time to ensure the safety and accuracy during the operation. Once the pipeline pressure is not less than 1.5 bar, the drain electric valve 9 will begin to open slowly; and when the pipeline pressure drops to less than 1.45 bar, the water supply electric valve 4 will be controlled to open gradually. During the entire process, the pressure gauge 6 will continue to monitor the pipeline pressure and finely adjust the opening of the drain electric valve 9 and the water supply electric valve 4 according to the pressure changes to ensure that the pressure is always maintained within the range of 1.4 bar to 1.45 bar, thereby smoothly realizing the non-stop water supply work of the closed liquid cooling system. This optimization measure not only improves the stability of the system, but also ensures the accuracy and efficiency of the water supply operation. After the water change is completed, the maintenance personnel manually close the water changing switch valve 11, marking the successful completion of the entire water change process.

[0040] The serial numbers of the above embodiments of the present invention are for description only and do not represent the advantages or disadvantages of the embodiments.

[0041] Those skilled in the art will understand that all or part of the steps to implement the above embodiments may be accomplished by hardware, or by a program to instruct the relevant hardware, and the program may be stored in a computer-readable storage medium, which may be a read-only memory, a disk, or an optical disk, etc.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A non-stop water changing system for a liquid-cooled host, characterized in that: include: The water supply pipe and return pipe, and the pure water tank in the liquid cooling system; a pressure gauge is provided on the return pipe, the return pipe is connected to the pure water tank through a make-up pipe, and a make-up water electric valve is provided on the make-up water pipe; the water supply pipe is connected to a drain pipe, and a drain electric valve and a water change switch valve are provided on the drain pipe in sequence; the opening and closing of the drain electric valve and the make-up water electric valve are controlled by the pipeline pressure detected by the pressure gauge.

2. The non-stop water changing system for a liquid-cooled host according to claim 1 is characterized in that: The water supply pipe is provided with an automatic exhaust valve for automatically exhausting the gas in the liquid cooling system.

3. The non-stop water changing system for a liquid-cooled host according to claim 1 is characterized in that: The return water pipe is provided with an automatic exhaust valve for automatically exhausting the gas in the liquid cooling system.

4. The non-stop water changing system for a liquid-cooled host according to claim 1, characterized in that: The end of the drain pipe is connected to the floor drain.

5. The non-stop water changing system for a liquid-cooled host according to claim 1 is characterized in that: The drain pipe is provided with a flow meter for measuring the flow rate during the draining process.

6. The non-stop water changing system for a liquid-cooled host according to claim 1, characterized in that: The drain pipe is provided with a sampling tap for extracting liquid samples for detection and analysis.

7. The non-stop water changing system for a liquid-cooled host according to claim 1, characterized in that: The water changing operation is started by opening the water changing switch valve.

8. The non-stop water changing system for a liquid-cooled host according to claim 7, characterized in that: During the water changing operation, when the pipeline pressure detected by the pressure gauge is not less than 1.5 bar, the pressure gauge controls the water drain electric valve to open.

9. The non-stop water changing system for a liquid-cooled host according to claim 7, characterized in that: During the water change operation, when the pipeline pressure detected by the pressure gauge is less than 1.45 bar, the pressure gauge controls the water supply electric valve to open.

10. The non-stop water changing system for a liquid-cooled host according to claim 7, characterized in that: During the water change operation, the openings of the drain electric valve and the water replenishment electric valve are controlled to maintain the pipeline pressure detected by the pressure gauge within the range of 1.4 bar to 1.45 bar.

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