Server liquid cooling test line body

Abstract

The invention discloses a server liquid cooling test line body, which comprises a waterproof groove, a liquid cooling secondary side pipe network, CDU equipment and liquid cooling test equipment, and the liquid cooling test equipment comprises pressure maintaining equipment, liquid injection equipment, drainage drying nitrogen injection equipment and integrated equipment. According to the server liquid cooling test line body, the pressure maintaining device, the liquid injection device and the water draining, drying and nitrogen injection device of the liquid cooling test device are separately arranged at different positions, three liquid cooling test procedures of air tightness test, flushing and water draining, drying and nitrogen injection can be carried out at the same time, the utilization rate of the liquid cooling test device is improved to the maximum extent, and the working efficiency is improved. Therefore, the efficiency of the whole-process testing of the liquid-cooled product is improved. Besides, the pressure maintaining device and the liquid injection device are arranged at one end of the waterproof groove, and the water draining, drying and nitrogen injection device is arranged at the other end of the waterproof groove, so that the liquid cooling product can be turned over without repeated paths in the testing process, the shortest turning path is realized, and the liquid cooling product is prevented from being carried back and forth.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid-cooled servers, and in particular to a server liquid-cooled test line capable of improving the testing efficiency of liquid-cooled products. Background Art

[0002] Liquid cooling supports explosive computing power through efficient heat dissipation while reducing energy consumption and carbon emissions. Therefore, liquid cooling products (including liquid-cooled server nodes and liquid-cooled server cabinets) have become a preferred choice for data centers. The liquid cooling product market is expected to grow at an annual rate of over 30% by 2027. Liquid cooling technology is gradually becoming the mainstream cooling solution for high-power chips (such as AI GPUs and high-performance CPUs).

[0003] To ensure that liquid-cooled products meet customer quality standards before leaving the factory, they must be tested. These tests include air-tightness testing, flushing, product functionality testing, and drainage, drying, and nitrogen injection. Liquid-cooled products have numerous test items and stringent testing requirements. Traditionally, integrated liquid-cooled product testing procedures have been used to separately perform the three liquid-cooling test steps: air-tightness testing, flushing, and drainage, drying, and nitrogen injection. During testing, the liquid-cooled test equipment performs each test step individually and cannot perform all three simultaneously. Consequently, this results in low liquid-cooling test equipment utilization and low liquid-cooling product testing efficiency. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a server liquid cooling test line to solve the problems of low utilization rate of liquid cooling test equipment and low efficiency of liquid cooling product testing in the prior art.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A server liquid cooling test line, which includes a waterproof tank, a liquid cooling secondary side pipe network, a CDU device and a liquid cooling test device, wherein the liquid cooling test equipment includes a pressure maintaining device, a liquid injection device, a drainage, drying and nitrogen injection device and an integrated device; the liquid cooling secondary side pipe network is arranged in the waterproof tank; the CDU device is connected to the liquid cooling product through the liquid cooling secondary side pipe network, and is used to provide recooling and circulation power for the liquid cooling secondary side; the pressure maintaining device is used to inject compressed air into the liquid cooling plate pipeline of the liquid cooling product for air tightness testing; the liquid injection device is used to inject pure water into the liquid cooling plate pipeline of the liquid cooling product for flushing; the drainage, drying and nitrogen injection device is used to fill the liquid cooling plate pipeline of the liquid cooling product with high-temperature air for drainage and drying, and is used to inject nitrogen into the liquid cooling plate pipeline of the liquid cooling product; the integrated device is used to provide compressed air to the pressure maintaining device, pure water to the liquid injection device, and compressed air and nitrogen to the drainage, drying and nitrogen injection device.

[0007] Preferably, the liquid cooling secondary side pipe network includes a cold water pipe, a hot water pipe and a drain pipe. The drain pipe is installed at the bottom of the waterproof tank. The CDU equipment is connected to the cold water pipe and the hot water pipe respectively through pipes. The cold water pipe is connected to the liquid inlet end of the liquid cooling plate pipeline of the liquid cooling product through a cold water transfer pipe, and the hot water pipe is connected to the liquid outlet end of the liquid cooling plate pipeline of the liquid cooling product through a hot water transfer pipe.

[0008] Preferably, the cold water pipe and the hot water pipe are both fixed in the waterproof groove by clamps.

[0009] Preferably, a cold water pipe joint is installed on the cold water pipe, and the cold water pipe joint is connected to the liquid inlet end of the liquid cooling plate pipeline of the liquid cooling product through a cold water transfer pipe; a hot water pipe joint is installed on the hot water pipe, and the hot water pipe joint is connected to the liquid outlet end of the liquid cooling plate pipeline of the liquid cooling product through a hot water transfer pipe.

[0010] Preferably, the cold water pipe and the hot water pipe have different appearance colors, the cold water pipe and the cold water transfer pipe have the same appearance colors, and the hot water pipe and the hot water transfer pipe have the same appearance colors.

[0011] Preferably, the appearance color of the cold water pipe is blue, and the appearance color of the hot water pipe is red.

[0012] Preferably, the cold water pipe joint and the hot water pipe joint are oriented perpendicular to the liquid cooling product.

[0013] Preferably, a water-immersing rope connected to a liquid injection device is installed in the waterproof tank, and the liquid injection device sends an alarm signal when detecting liquid accumulation in the waterproof tank through the water-immersing rope.

[0014] Preferably, the liquid-cooled secondary side pipe network further includes a circulation loop pipe, which is used to short-circuit the cold water pipe and the hot water pipe, and is provided with a valve for adjusting the opening of the circulation loop pipe.

[0015] Preferably, the pressure maintaining equipment and the liquid injection equipment are arranged at one end of the waterproof tank, the drainage, drying and nitrogen injection equipment is arranged at the other end of the waterproof tank, and a plurality of baking positions are provided on both sides of the waterproof tank.

[0016] The beneficial technical effect of the present invention is that the above-mentioned server liquid cooling test line includes liquid cooling test equipment, and the pressure maintaining equipment, liquid injection equipment, drainage, drying and nitrogen injection equipment of the liquid cooling test equipment are arranged separately in different positions. The three liquid cooling test processes of air tightness testing, flushing, drainage, drying and nitrogen injection can be carried out simultaneously, which maximizes the utilization rate of the liquid cooling test equipment and thus provides the efficiency of the full process testing of liquid cooling products. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1A top view of a server liquid cooling test line in one embodiment of the present invention;

[0018] Figure 2 for Figure 1 A partial enlarged view of point A in the middle;

[0019] Figure 3 for Figure 1 A partial enlarged view of point B in the middle.

[0020] Description of reference numerals:

[0021] 10-Waterproof trough, 20-Liquid cooling secondary side pipe network, 21-Cold water pipe, 211-Cold water pipe joint, 212-Cold water transfer pipe, 22-Hot water pipe, 221-Hot water pipe joint, 222-Hot water transfer pipe, 23-Drain pipe, 24-Clamp, 25-Circulation loop pipe, 30-CDU equipment, 40-Pressure maintaining equipment, 41-First air inlet and outlet pipe group, 42-Second air inlet and outlet pipe group, 43-Pressure maintaining equipment exhaust port, 50-Liquid injection equipment, 51-First water inlet and outlet pipe group, 52-Second water inlet and outlet pipe group, 53-Liquid injection equipment drain port, 60-Drainage, drying and nitrogen injection equipment, 61-Third air inlet and outlet pipe group, 62-First nitrogen pipe, 63-Fourth air inlet and outlet pipe group, 64-Second nitrogen pipe, 65-Drainage, drying and nitrogen injection equipment exhaust port, 70-Integrated equipment, 71-Main exhaust and drainage pipeline, 80-Bake-up position DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to more clearly understand the objectives, technical solutions and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments.

[0023] like Figure 1-3 As shown, in one embodiment of the present invention, the server liquid cooling test line includes a waterproof tank 10, a liquid cooling secondary side pipe network 20, a CDU (Coolant Distribution Unit) device 30 and a liquid cooling test device, and the liquid cooling test device includes a pressure maintaining device 40, a liquid injection device 50, a drainage, drying and nitrogen injection device 60 and an integrated device 70, and the pressure maintaining device 40, the liquid injection device 50, the drainage, drying and nitrogen injection device 60 are arranged separately in different positions.

[0024] In this embodiment, the pressure-maintaining device 40 and the liquid injection device 50 are disposed at one end of the waterproof tank 10, the drain, drying, and nitrogen injection device 60 is disposed at the other end of the waterproof tank 10, and a plurality of baking stations 80 are provided on both sides of the waterproof tank 10. The liquid-cooled products on the baking stations 80 are connected to the liquid-cooled secondary pipe network. The integrated device 70 is disposed on the side of one end of the waterproof tank 10 near the drain, drying, and nitrogen injection device 60. The number of CDU devices 30 is two, and two CDU devices 30 are disposed on both sides of one end of the waterproof tank 10 near the drain, drying, and nitrogen injection device 60. Of course, in other embodiments, the number and installation positions of the pressure-maintaining device 40, the liquid injection device 50, the drain, drying, and nitrogen injection device 60, and the integrated device 70 can be adjusted accordingly according to actual conditions, and the number and installation positions of the CDU devices 30 can also be adjusted accordingly according to actual conditions.

[0025] The integrated device 70 is used to provide compressed air to the pressure-maintaining device 40, and the pressure-maintaining device 40 is used to inject compressed air into the liquid cooling plate pipeline of the liquid cooling product to perform an air tightness test, wherein the liquid cooling product includes a liquid cooling server node and a liquid cooling server cabinet. Specifically, the integrated device 70 is connected to the pressure-maintaining device 40 through the second air inlet and outlet pipe group 42, and the second air inlet and outlet pipe group 42 includes an air inlet pipe and an air outlet pipe. The compressed air in the integrated device 70 is transported from the air inlet pipe of the second air inlet and outlet pipe group 42 to the inside of the pressure-maintaining device 40, and then returns to the integrated device 70 through the air outlet pipe of the second air inlet and outlet pipe group 42, realizing a circulating supply of compressed air. The pressure-maintaining device 40 is connected to the liquid cooling plate pipeline of the liquid cooling product through the first air inlet and outlet pipe group 41, and the first air inlet and outlet pipe group 41 includes an air inlet pipe and an air outlet pipe. When conducting an air tightness test, first open the valve on the air inlet pipe of the first air inlet and outlet pipe group 41, and the pressure maintaining device 40 injects compressed air into the liquid cooling plate pipeline of the liquid cooling product through the air inlet pipe of the first air inlet and outlet pipe group 41. At the same time, the compressed air in the liquid cooling plate pipeline returns to the pressure maintaining device 40 through the air outlet pipe of the first air inlet and outlet pipe group 41 for real-time pressure detection. When the gas pressure in the liquid cooling plate pipeline reaches the preset pressure, close the valve on the air inlet pipe of the first air inlet and outlet pipe group 41 to stop the compressed air injection; after waiting for a period of time, if the gas pressure in the liquid cooling plate pipeline decays within the preset range, it indicates that the air tightness is qualified, otherwise it indicates that the air tightness is unqualified; then open the valve on the exhaust port 43 of the pressure maintaining device to discharge the compressed air in the liquid cooling plate pipeline of the liquid cooling product into the exhaust and drainage main pipeline 71, and discharge it into the sewer through the exhaust and drainage main pipeline 71.

[0026] The integrated device 70 is used to provide pure water to the liquid injection device 50, which is used to inject pure water into the liquid cooling plate pipeline of the liquid cooling product for flushing. Specifically, the integrated device 70 is connected to the liquid injection device 50 via a second water inlet and outlet pipe assembly 52. ​​The second water inlet and outlet pipe assembly 52 includes an inlet pipe and an outlet pipe. The pure water in the integrated device 70 is transported from the inlet pipe of the second water inlet and outlet pipe assembly 52 to the interior of the liquid injection device 50, and then returns to the integrated device 70 through the outlet pipe of the second water inlet and outlet pipe assembly 52, realizing a pure water circulation supply. The liquid injection device 50 is connected to the liquid cooling plate pipeline of the liquid cooling product via a first water inlet and outlet pipe assembly 51. The first water inlet and outlet pipe assembly 51 includes an inlet pipe and an outlet pipe. During flushing, the valve on the water inlet pipe of the first water inlet and outlet pipe group 51 is opened, and the liquid injection device 50 injects pure water into the liquid cooling plate pipeline of the liquid cooling product through the water inlet pipe of the first water inlet and outlet pipe group 51 to continuously flush the liquid cooling plate pipeline. The flushed water returns to the liquid injection device 50 through the water outlet pipe of the first water inlet and outlet pipe group 51 for sampling and testing. At the same time, the flushed water is discharged to the exhaust and drainage main pipeline 71 through the drain port 53 of the liquid injection device, and is discharged into the sewer through the exhaust and drainage main pipeline 71; the liquid injection device 50 tests various indicators of the flushed water (PH, turbidity, conductivity, etc.). If the various indicators of the flushed water are within the preset range, it means that the cleanliness of the liquid cooling plate pipeline of the liquid cooling product is qualified.

[0027] The integrated device 70 is used to provide compressed air and nitrogen to the drainage drying and nitrogen injection device 60. The drainage drying and nitrogen injection device 60 is used to fill the liquid cooling plate pipeline of the liquid cooling product with high-temperature air for drainage drying, and is used to inject nitrogen into the liquid cooling plate pipeline of the liquid cooling product. Specifically, the integrated device 70 is connected to the drainage drying and nitrogen injection device 60 through the fourth inlet and outlet pipe group 63. The fourth inlet and outlet pipe group 63 includes an inlet pipe and an outlet pipe. The compressed air in the integrated device 70 is transported from the inlet pipe of the fourth inlet and outlet pipe group 63 to the inside of the drainage drying and nitrogen injection device 60, and then returns to the integrated device 70 through the outlet pipe of the fourth inlet and outlet pipe group 63, realizing a circulation supply of compressed air; the integrated device 70 is connected to the drainage drying and nitrogen injection device 60 through the second nitrogen pipe 64 to realize nitrogen supply. The drainage drying and nitrogen injection equipment 60 is connected to the liquid cooling plate pipeline of the liquid cooling product through the third inlet and outlet pipe group 61, and the drainage drying and nitrogen injection equipment 60 is connected to the liquid cooling plate pipeline of the liquid cooling product through the first nitrogen pipe 62, wherein the third inlet and outlet pipe group 61 includes an inlet pipe and an outlet pipe. When draining, drying and injecting nitrogen, open the valve on the air inlet pipe of the third air inlet and outlet pipe group 61, and the draining, drying and nitrogen injection equipment 60 continuously injects high-temperature air into the liquid cooling plate pipeline of the liquid cooling product through the air inlet pipe of the third air inlet and outlet pipe group 61. The pure water in the liquid cooling plate pipeline is discharged to the draining, drying and nitrogen injection equipment 60 together with the gas through the air outlet pipe of the third air inlet and outlet pipe group 61, and then discharged to the exhaust and drainage main pipeline 71 through the exhaust port 65 of the draining, drying and nitrogen injection equipment, and finally discharged into the sewer through the exhaust and drainage main pipeline 71; the residual water in the liquid cooling plate pipeline of the liquid cooling product will also evaporate with continuous inflation; after the liquid cooling plate pipeline of the liquid cooling product is completely dried, open the valve on the first nitrogen pipe 62 and inject nitrogen into the liquid cooling plate pipeline of the liquid cooling product.

[0028] The liquid-cooled secondary side pipe network 20 is arranged in the waterproof tank 10, and the CDU device 30 is connected to the liquid-cooled product through the liquid-cooled secondary side pipe network 20. The CDU device 30 is used to provide re-cooling and circulation power for the liquid-cooled secondary side. Specifically, when the liquid-cooled product undergoes functional testing (baking), the hot water flowing out of the liquid-cooled plate pipeline of the liquid-cooled product enters the CDU device 30 through the liquid-cooled secondary side pipe network 20. The plate heat exchanger inside the CDU device 30 will convert the hot water (for example, 50°C) into cold water (for example, 40°C), and provide water pressure (1-2 bar) through the circulation pump inside the CDU device 30, so that the hot and cold water circulate in the entire liquid-cooled secondary side pipe network 20, taking away the heat generated by the functional test, and continuously dissipating heat to the liquid-cooled product.

[0029] The specific process of using the server liquid cooling test line in this embodiment to conduct a full-process test on the liquid cooling product is as follows:

[0030] (1) First, connect the liquid cooling product to the pressure maintaining device 40 for air tightness test. Specifically, the integrated device 70 provides compressed air to the pressure maintaining device 40 through the second air inlet and outlet pipe group 42, and the pressure maintaining device 40 injects compressed air into the liquid cooling plate pipeline of the liquid cooling product through the first air inlet and outlet pipe group 41 for air tightness test: After waiting for a period of time, if the gas pressure in the liquid cooling plate pipeline decays within the range, it indicates that the air tightness is qualified; otherwise, it indicates that the air tightness is unqualified.

[0031] (2) After the air tightness test is completed, the liquid-cooled product is transferred to the liquid injection device 50 for flushing. Specifically, the integrated device 70 provides pure water to the liquid injection device 50 through the second water inlet and outlet pipe group 52. The liquid injection device 50 injects pure water into the liquid cooling plate pipeline of the liquid cooling product through the first water inlet and outlet pipe group 51 to continuously flush the liquid cooling plate pipeline. The flushed water returns to the liquid injection device 50 through the outlet pipe of the first water inlet and outlet pipe group 51 for sampling and testing. If the various indicators of the flushed water (PH, turbidity, conductivity, etc.) are within the preset range, it means that the cleanliness of the liquid cooling plate pipeline of the liquid cooling product is qualified.

[0032] (3) After the flushing is completed, the liquid-cooled product is transferred to the baking position 80 on both sides of the liquid-cooled secondary side pipe network 20 for functional testing (baking). During the functional test, the hot and cold water inside the liquid cooling plate pipe of the liquid-cooled product continuously flows to remove the heat generated by the functional test.

[0033] (4) After the functional test is completed, the liquid cooling product is transferred to the drainage, drying and nitrogen injection equipment 60 for drainage, drying and nitrogen injection. Specifically, the integrated equipment 70 provides compressed air to the drainage, drying and nitrogen injection equipment 60 through the fourth inlet and outlet pipe group 63, and the integrated equipment 70 provides nitrogen to the drainage, drying and nitrogen injection equipment 60 through the second nitrogen pipe 64. The drainage, drying and nitrogen injection equipment 60 continuously charges high-temperature air to the liquid cooling plate pipeline of the liquid cooling product through the inlet pipe of the third inlet and outlet pipe group 61, and the pure water in the liquid cooling plate pipeline is discharged together with the gas. The discharged gas and water are discharged into the sewer through the exhaust and drainage main pipeline 71. The residual water in the liquid cooling plate pipeline of the liquid cooling product will also evaporate with the continuous charging. After the liquid cooling plate pipeline of the liquid cooling product is completely dry, the drainage, drying and nitrogen injection equipment 60 charges nitrogen to the liquid cooling plate pipeline of the liquid cooling product, and all tests are completed.

[0034] The server liquid cooling test line in this embodiment includes a liquid cooling test device. The pressure maintaining device 40, the liquid injection device 50, and the drainage, drying, and nitrogen injection device 60 of the liquid cooling test device are separately arranged in different positions. The three liquid cooling test processes of air tightness testing, flushing, and drainage, drying, and nitrogen injection can be carried out simultaneously, maximizing the utilization rate of the liquid cooling test equipment and thus improving the efficiency of the full-process testing of the liquid cooling product. In addition, the pressure maintaining device 40 and the liquid injection device 50 are arranged at one end of the waterproof tank 10, and the drainage, drying, and nitrogen injection device 60 is arranged at the other end of the waterproof tank 10, so that the turnover of the liquid cooling product during the test process has no repeated path, achieving the shortest turnover path and avoiding the back and forth transportation of the liquid cooling product.

[0035] See again Figure 2-3 As shown, in a preferred embodiment of the present invention, the liquid cooling secondary side pipe network 20 includes a cold water pipe 21, a hot water pipe 22 and a drain pipe 23. The drain pipe 23 is installed at the bottom of the waterproof tank 10. The CDU equipment 30 is connected to the cold water pipe 21 and the hot water pipe 22 through pipes respectively. The cold water pipe 21 is connected to the liquid inlet end of the liquid cooling plate pipeline of the liquid cooling product through the cold water transfer pipe 212, and the hot water pipe 22 is connected to the liquid outlet end of the liquid cooling plate pipeline of the liquid cooling product through the hot water transfer pipe 222.

[0036] When the liquid-cooled product is undergoing functional testing (baking), the hot water flowing out of the liquid outlet of the liquid cooling plate pipeline of the liquid cooling product enters the CDU device 30 through the hot water pipe 22. The plate heat exchanger inside the CDU device 30 will convert the hot water (for example, 50°C) into cold water (for example, 40°C), and the circulating pump inside the CDU device 30 will provide water pressure (1-2 bar), so that the cold water will re-enter the liquid cooling plate pipeline of the liquid cooling product through the cold water pipe 21, so that the hot and cold water can circulate in the liquid cooling plate pipeline of the liquid cooling product, taking away the heat generated by the functional test and continuously dissipating heat to the liquid cooling product. The drain pipe 23 is installed at the bottom of the waterproof tank 10. When the liquid cooling secondary side pipe network 20 leaks, the liquid is discharged in time through the drain pipe 23 at the bottom of the waterproof tank 10 to avoid liquid accumulation in the tank.

[0037] See again Figure 2-3 As shown, in a preferred embodiment of the present invention, the cold water pipe 21 and the hot water pipe 22 are both fixed in the waterproof tank 10 by a clamp 24. Of course, in other embodiments, the cold water pipe 21 and the hot water pipe 22 can also be fixed in the waterproof tank 10 by other connection methods such as welding.

[0038] See again Figure 2-3As shown, in a preferred embodiment of the present invention, a cold water pipe joint 211 is installed on the cold water pipe 21, and the cold water pipe joint 211 is connected to the liquid inlet end of the liquid cooling plate pipeline of the liquid cooling product through a cold water transfer pipe 212; a hot water pipe joint 221 is installed on the hot water pipe 22, and the hot water pipe joint is connected to the liquid outlet end of the liquid cooling plate pipeline of the liquid cooling product through a hot water transfer pipe 222.

[0039] In this embodiment, the cold water pipe connector 211 uses a chuck 50.5 interface, which is easy to install and disassemble. Different cold water transfer pipes 212 can be replaced at any time, and the opening and closing of the interface is controlled by a ball valve, ensuring that leakage will not occur during the replacement process. The hot water pipe connector 221 also uses a chuck 50.5 interface, which is easy to install and disassemble. Different hot water transfer pipes 222 can be replaced at any time, and the opening and closing of the interface is controlled by a ball valve, ensuring that leakage will not occur during the replacement process, thereby reducing the risk of leakage. Of course, in other embodiments, the cold water pipe connector 211 and the hot water pipe connector 221 can also use interfaces of other specifications.

[0040] The interfaces at one end of the cold water transfer tube 212 and the hot water transfer tube 222 connected to the liquid cooling product can be customized to match different test interfaces of the liquid cooling product.

[0041] See again Figure 2-3 As shown, in a preferred embodiment of the present invention, the cold water pipe 21 and the hot water pipe 22 have different appearance colors, the cold water pipe 21 and the cold water transfer pipe 212 have the same appearance color, and the hot water pipe 22 and the hot water transfer pipe 222 have the same appearance color. In this embodiment, the appearance color of the cold water pipe 21 is blue, and the appearance color of the hot water pipe 22 is red. Of course, in other embodiments, the appearance color of the cold water pipe 21 is red or other colors, and the appearance color of the hot water pipe 22 is selected to be different from the appearance color of the cold water pipe 21, such as yellow. By customizing the appearance colors of the cold water pipe 21, the hot water pipe 22, the cold water transfer pipe 212, and the hot water transfer pipe 222, the installer can be guided by the colors when connecting the pipes, which can avoid connecting the cold and hot water pipes in reverse.

[0042] See again Figure 2-3 As shown, in a preferred embodiment of the present invention, the cold water pipe joint 211 and the hot water pipe joint 221 are oriented perpendicular to the liquid-cooled product. When leakage occurs at the joint, the liquid will not be sprayed onto the liquid-cooled product, minimizing leakage losses.

[0043] See again Figure 2-3As shown, in a preferred embodiment of the present invention, the liquid-cooled secondary pipe network 20 further includes a circulation loop pipe 25, which is used to short-circuit the cold water pipe 21 and the hot water pipe 22. A valve for adjusting the opening of the circulation loop pipe is provided on the circulation loop pipe 25. The circulation loop pipe 25 short-circuits the cold water pipe 21 and the hot water pipe 22. Adjusting the opening of the circulation loop pipe 25 by adjusting the valve balances the flow and pressure of the cold water pipe 21 and the hot water pipe 22, ensuring stable system operation.

[0044] In a preferred embodiment of the present invention, a water-immersion cord connected to a liquid injection device 50 is installed within the waterproof tank 10. When the liquid injection device 50 detects liquid accumulation in the waterproof tank 10 via the water-immersion cord, it issues an alarm signal to alert the line manager to take appropriate action. Of course, in other embodiments, other types of water sensors may be used in place of the water-immersion cord to detect liquid accumulation within the waterproof tank 10.

[0045] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Those skilled in the art may make various equivalent changes and improvements based on the above embodiment. Any equivalent changes or modifications made within the scope of the claims shall fall within the scope of protection of the present invention.

Claims

1. A server liquid cooling test line, characterized by: It includes a waterproof tank, a liquid-cooled secondary side pipe network, a CDU device and a liquid-cooled testing device, wherein the liquid-cooled testing device includes a pressure maintaining device, a liquid injection device, a drainage, drying and nitrogen injection device and an integrated device; the liquid-cooled secondary side pipe network is arranged in the waterproof tank; the CDU device is connected to the liquid-cooled product through the liquid-cooled secondary side pipe network, and is used to provide re-cooling and circulation power for the liquid-cooled secondary side; the pressure maintaining device is used to inject compressed air into the liquid-cooled plate pipeline of the liquid-cooled product for air tightness testing; the liquid injection device is used to inject pure water into the liquid-cooled plate pipeline of the liquid-cooled product for flushing; the drainage, drying and nitrogen injection device is used to fill the liquid-cooled plate pipeline of the liquid-cooled product with high-temperature air for drainage and drying, and to inject nitrogen into the liquid-cooled plate pipeline of the liquid-cooled product; the integrated device is used to provide compressed air to the pressure maintaining device, pure water to the liquid injection device, and compressed air and nitrogen to the drainage, drying and nitrogen injection device.

2. The server liquid cooling test line according to claim 1, characterized in that: The liquid cooling secondary side pipe network includes a cold water pipe, a hot water pipe and a drain pipe. The drain pipe is installed at the bottom of the waterproof tank. The CDU equipment is connected to the cold water pipe and the hot water pipe respectively through pipes. The cold water pipe is connected to the liquid inlet end of the liquid cooling plate pipeline of the liquid cooling product through a cold water transfer pipe. The hot water pipe is connected to the liquid outlet end of the liquid cooling plate pipeline of the liquid cooling product through a hot water transfer pipe.

3. The server liquid cooling test line according to claim 2, characterized in that: The cold water pipe and the hot water pipe are both fixed in the waterproof groove by clamps.

4. The server liquid cooling test line according to claim 2, wherein: A cold water pipe joint is installed on the cold water pipe, and the cold water pipe joint is connected to the liquid inlet end of the liquid cooling plate pipeline of the liquid cooling product through a cold water transfer pipe; a hot water pipe joint is installed on the hot water pipe, and the hot water pipe joint is connected to the liquid outlet end of the liquid cooling plate pipeline of the liquid cooling product through a hot water transfer pipe.

5. The server liquid cooling test line according to claim 4, characterized in that: The cold water pipe and the hot water pipe have different appearance colors, the cold water pipe and the cold water transfer pipe have the same appearance colors, and the hot water pipe and the hot water transfer pipe have the same appearance colors.

6. The server liquid cooling test line according to claim 5, characterized in that: The cold water pipe has a blue appearance, and the hot water pipe has a red appearance.

7. The server liquid cooling test line according to claim 4, characterized in that: The cold water pipe joint and the hot water pipe joint are oriented perpendicular to the liquid cooling product.

8. The server liquid cooling test line according to claim 4, characterized in that: A water-immersion rope connected to a liquid injection device is installed in the waterproof tank, and the liquid injection device sends an alarm signal when detecting liquid accumulation in the waterproof tank through the water-immersion rope.

9. The server liquid cooling test line according to claim 4, characterized in that: The liquid cooling secondary side pipe network also includes a circulation loop pipe, which is used to short-circuit the cold water pipe and the hot water pipe. The circulation loop pipe is provided with a valve for adjusting the opening of the circulation loop pipe.

10. The server liquid cooling test line according to any one of claims 1 to 9, characterized in that: The pressure maintaining equipment and the liquid injection equipment are arranged at one end of the waterproof tank, the drainage, drying and nitrogen injection equipment is arranged at the other end of the waterproof tank, and a plurality of baking machine positions are arranged on both sides of the waterproof tank.

Images