Ring-type secondary-side liquid-cooling loop system, liquid-cooled micro-module, and fluid replacement method

Abstract

The present application relates to the technical field of liquid-cooled server cabinets, and discloses a ring-type secondary-side liquid-cooling loop system, a liquid-cooled micro-module, and a fluid replacement method. The ring-type secondary-side liquid-cooling loop system comprises a main fluid return loop, a main fluid supply loop, a fluid replacement inlet line, and a fluid replacement outlet line; the main fluid return loop is provided with a plurality of cabinet fluid outlet branches and heat exchange unit fluid return branches; the main fluid supply loop is provided with a plurality of cabinet fluid inlet branches configured for connecting to a liquid-cooled cabinet and heat exchange unit fluid supply branches configured for connecting to a heat exchange unit; one end of the fluid replacement inlet line is connected to the main fluid return loop, and the fluid replacement inlet line is provided with a fluid replacement pump configured for providing power; and one end of the fluid replacement outlet line is connected to the main fluid supply loop, and the fluid replacement outlet line is provided with a first control valve configured for controlling the opening and closing of the fluid replacement outlet line. The ring-type secondary-side liquid-cooling loop system provided by the present application is capable of performing online coolant replacement, effectively improving operational efficiency, and preventing adverse effects caused by coolant deterioration.

Description

A liquid-cooled secondary-side ring network system, a liquid-cooled micro-module, and a solution displacement method

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 202410994626.2, filed on July 24, 2024, entitled "A Liquid-Cooled Secondary Side Ring Network System, a Liquid-Cooled Micromodule and a Solution Replacement Method", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of server liquid-cooled cabinet technology, and more specifically, to a liquid-cooled secondary-side ring network system. Furthermore, this application also relates to a liquid-cooled micromodule comprising the aforementioned liquid-cooled secondary-side ring network system. This application further relates to a solution displacement method applied to the aforementioned liquid-cooled secondary-side ring network system. Background Technology

[0004] Currently, the energy consumption required for high-performance computing tasks and massive data processing is increasing, while the demand for heat dissipation is also rising. In particular, the rise of large models and AIGC (Artificial Intelligence Generated Content) has placed higher demands on the heat dissipation efficiency of hardware facilities such as servers for training, computing, and inference of massive amounts of data. Traditional air-cooling technology can no longer meet the heat dissipation needs of servers with higher power.

[0005] Current liquid cooling technology for data centers lacks corresponding design standards, leading to inconsistent on-site construction practices. This often results in issues such as excessive welds, poor welding quality, coolant deterioration, cold plate blockage or corrosion, and in more serious cases, insufficient heat dissipation by the cold plates, causing localized overheating and server crashes. Furthermore, the failure to replace deteriorated coolant promptly exacerbates corrosion of the cold plates and other structures, further impacting cooling efficiency. Summary of the Invention

[0006] In view of this, the purpose of this application is to provide a liquid-cooled secondary-side ring network system that can replace the coolant online, effectively improve working efficiency, and avoid adverse effects caused by coolant deterioration.

[0007] Another objective of this application is to provide a liquid-cooled micro-module comprising the above-described liquid-cooled secondary-side ring network system and a solution displacement method applied to the above-described liquid-cooled secondary-side ring network system.

[0008] To achieve the above objectives, this application provides the following technical solution:

[0009] A liquid-cooled secondary-side ring network system, comprising:

[0010] The main return loop is equipped with several cabinet liquid outlet branches for connecting to the liquid cooling cabinet and heat exchange unit return branches for connecting to the heat exchange unit.

[0011] The main liquid supply loop is equipped with several cabinet liquid inlet branches for connecting to the liquid cooling cabinet and heat exchange unit liquid supply branches for connecting to the heat exchange unit.

[0012] The replacement fluid inflow pipeline is connected at one end to the main return fluid loop and at the other end to the first container for holding the replacement fluid; the replacement fluid inflow pipeline is equipped with a solution replacement pump for providing power; the solution replacement pump is used to draw the replacement fluid in the first container to the main return fluid loop;

[0013] The displacement fluid outlet pipeline has one end connected to the main fluid supply loop and the other end connected to a second container for collecting the liquid flowing out of the main fluid supply loop. The displacement fluid outlet pipeline is equipped with a first control valve for controlling the opening and closing of the displacement fluid outlet pipeline.

[0014] On the one hand, the displacement fluid inflow pipeline is connected to the end of the main return liquid loop that is far from the return liquid branch of the heat exchange unit;

[0015] The displacement fluid outlet pipe is connected to the end of the main return fluid loop that is furthest from the heat exchange unit supply branch.

[0016] On the other hand, the main liquid supply loop is equipped with a pH probe for detecting the pH value of the liquid inside, a conductivity probe for detecting the conductivity of the liquid inside the main liquid supply loop, a turbidimeter for detecting the turbidity of the liquid inside the main liquid supply loop, a corrosion rate probe for detecting the corrosion of the liquid inside the main liquid supply loop, a controller, and an alarm.

[0017] When at least one of the following information fails to meet the preset requirements: pH information detected by the pH probe, conductivity information detected by the conductivity probe, turbidity information detected by the turbidity meter, or corrosion rate information detected by the corrosion rate probe, the controller will activate the alarm to issue a warning message.

[0018] On the other hand, it also includes a display for connecting to the controller, which displays pH information detected by the pH probe, conductivity information detected by the conductivity probe, turbidity information detected by the turbidity meter, and corrosion rate information detected by the corrosion rate probe.

[0019] On the other hand, the main return loop is equipped with a first vent hole and a first drain hole, and the main supply loop is equipped with a second vent hole and a second drain hole.

[0020] The replacement fluid inflow pipe is connected to the first drain hole, and the replacement fluid outflow pipe is connected to the second drain hole.

[0021] On the other hand, both the main return loop and the main supply loop include a first pipe section, which includes:

[0022] The first main body is provided with a first pull-out tee, and the two ends of the first main body are respectively provided with a first main body chuck and a first butterfly valve;

[0023] The first elbow connecting pipe is connected to the first main body;

[0024] The first elbow connecting pipe in the first pipe section of the main return loop is connected to the liquid outlet branch of the cabinet that connects to the liquid cooling cabinet;

[0025] The first elbow connecting pipe in the first section of the main liquid supply loop is connected to the liquid inlet branch of the liquid cooling cabinet.

[0026] On the other hand, both the main return loop and the main supply loop include a second pipe section, which includes:

[0027] The second main body is equipped with a second pull-out tee, and the two ends of the second main body are respectively equipped with a second main body chuck and a second butterfly valve;

[0028] The second elbow connecting pipe is connected to the second main body;

[0029] The second elbow connecting pipe in the second pipe section of the main return loop is connected to the return liquid branch of the heat exchange unit that connects to the heat exchange unit;

[0030] The second elbow connecting pipe in the second pipe section of the main liquid supply loop is connected to the liquid supply branch of the heat exchange unit that connects to the heat exchange unit.

[0031] On the other hand, it also includes an inter-row air conditioner installed between adjacent liquid cooling cabinets (1), and both the main return liquid loop and the main supply liquid loop include a third pipe section, which is installed at the position corresponding to the inter-row air conditioner.

[0032] On the other hand, the first pipe section is equipped with one first switch control valve or two first switch control valves spaced apart, with the two first switch control valves located at both ends of the first pipe section where they are connected to the cabinet liquid outlet branch or the cabinet liquid inlet branch.

[0033] The second pipe section is equipped with one second switch control valve or two second switch control valves spaced apart. The two second switch control valves are respectively located at both ends of the second pipe section where they are connected to the liquid supply branch or the liquid outlet branch of the heat exchange unit.

[0034] On the other hand, the main return loop is a first rectangular loop, which is formed by a first connecting pipe and a fourth pipe section arranged opposite to each other. The first connecting pipe is provided with a first pipe section, a second pipe section and a third pipe section; the two ends of the fourth pipe section are respectively connected to the two first connecting pipes.

[0035] The main liquid supply loop is a second rectangular loop, which is formed by a second connecting pipe and a fifth pipe section arranged opposite to each other. The second connecting pipe is provided with a first pipe section, a second pipe section and a third pipe section; the two ends of the fifth pipe section are respectively connected to the two second connecting pipes.

[0036] On the other hand, both the fourth and fifth pipe sections are U-shaped structures. The fourth pipe section is equipped with a first vent hole and a first drain hole, while the fifth pipe section is equipped with a second vent hole and a second drain hole.

[0037] On the other hand, the heat exchange unit liquid supply branch is located at one end of the first connecting pipe that is connected to the fourth pipe section, and the heat exchange liquid outlet branch is located at one end of the second connecting pipe that is connected to the fifth pipe section.

[0038] The first connecting pipe is equipped with multiple cabinet liquid outlet branches, the second connecting pipe is equipped with multiple cabinet liquid inlet branches, multiple liquid-cooled cabinets are distributed along the extension direction of the first or second connecting pipe, and an inter-row air conditioner is installed in the space between adjacent liquid-cooled cabinets.

[0039] On the other hand, the first, second, third, fourth, and fifth pipe sections are all standard parts.

[0040] On the other hand, the pipe diameters of the main return loop and the main supply loop are less than or equal to 101.6 mm, and any two adjacent pipe sections in the first, second, third, and fourth pipe sections are connected by quick-release chucks and clamps.

[0041] Alternatively, the diameter of the main return loop and the main supply loop is greater than 101.6 mm, and any two adjacent pipe sections in the first, second, third, and fourth pipe sections are connected by flanges.

[0042] On the other hand, both the cabinet liquid outlet branch and the cabinet liquid inlet branch are equipped with three-piece dual-control ball valves;

[0043] When disassembling a liquid-cooled cabinet, close the three-piece dual-control ball valves on the liquid outlet branch and the liquid inlet branch connected to the same liquid-cooled cabinet.

[0044] On the other hand, the liquid inlet branch of the cabinet is equipped with a first pressure sensor and an electric regulating valve;

[0045] The cabinet's liquid outlet branch is equipped with a second pressure sensor and an electric switch valve.

[0046] On the other hand, a water collection tray and a leakage detection device are installed on the outer periphery of the main liquid supply loop and the main liquid return loop;

[0047] When the leakage detection device detects leakage, it controls the electric switch valve on the corresponding cabinet outlet branch to close.

[0048] On the other hand, the main liquid supply loop is located around the main liquid return loop, and the main liquid supply loop and the main liquid return loop are located in the same installation plane.

[0049] On the other hand, the liquid-cooled secondary ring network system is installed under the raised floor or inside the ceiling.

[0050] A liquid-cooled micro-module includes a cabinet body, a liquid-cooled cabinet, an in-row air conditioner, a heat exchange unit, and a liquid-cooled secondary-side ring network system of any one of the above.

[0051] A solution displacement method is applied to the liquid-cooled secondary side ring network system of any of the above; the main liquid supply loop of the liquid-cooled secondary side ring network is equipped with a pH probe for detecting the pH value of the liquid inside, a conductivity probe for detecting the conductivity of the liquid in the main liquid supply loop, a turbidimeter for detecting the turbidity of the liquid in the main liquid supply loop, and a corrosion rate probe for detecting the corrosion of the liquid in the main liquid supply loop.

[0052] Solution displacement methods include:

[0053] Acquire pH information detected by the pH probe, conductivity information detected by the conductivity probe, turbidity information detected by the turbidimeter, and corrosion rate information detected by the corrosion rate probe;

[0054] Determine if the following conditions are met simultaneously: pH information is within a preset pH range, conductivity information is within a preset conductivity range, turbidity information is within a preset turbidity range, and corrosion rate information is within a preset corrosion rate range. If all three conditions are met simultaneously, the coolant in the current main return loop and main supply loop meets the requirements. If none of these conditions are met simultaneously, proceed to the next step.

[0055] The solution displacement pump is started and the first control valve is opened to draw the displacement fluid in the first container into the main return loop. The original coolant in the main supply loop and the main return loop is discharged into the second container through the displacement fluid outlet pipe.

[0056] The beneficial effects of the solution provided in this application are as follows:

[0057] During the use of the liquid-cooled secondary side ring network system provided in this application, the coolant in the main liquid supply loop enters the cooling flow path inside the liquid-cooled cabinet through the cabinet inlet branch. After cooling the liquid-cooled cabinet, the coolant flows back to the main return loop through the cabinet outlet branch. The coolant in the main return loop flows into the heat exchange flow path in the heat exchange unit through the heat exchange unit supply branch and flows through the external equipment for heat exchange, thereby cooling the coolant. After cooling, the coolant enters the heat exchange unit and flows back to the main inlet loop through the heat exchange unit return branch.

[0058] Specifically, an external device can be installed outside the heat exchange unit. The external device is used to connect to the main return loop and the main inlet loop through the return liquid branch and the supply liquid branch of the heat exchange unit. The coolant in the main return loop flows out to the external device through the return liquid branch of the heat exchange unit and undergoes heat exchange in the external device to cool down the coolant. The cooled coolant flows back to the main inlet loop through the supply liquid branch of the heat exchange unit to realize the circulation of coolant in the main return loop and the main inlet loop.

[0059] In practical use, when it is necessary to replace the coolant in the main return loop and the main inlet loop, the liquid-cooled secondary side loop system can be kept in operation. The solution displacement pump and the first control valve are opened, and the displacement fluid in the first container is drawn into the main return loop, increasing the coolant flow rate. As new displacement fluid is continuously drawn into the main return loop, the coolant in the main return loop and the main inlet loop is forced through the displacement fluid outlet pipe and flows into the second container, completing the replacement of the original coolant in the main return loop and the main inlet loop. The replacement process does not require stopping the normal operation of the liquid-cooled secondary side loop system, enabling online coolant replacement.

[0060] In addition, this application also provides a liquid-cooled micro-module including the above-mentioned liquid-cooled secondary side ring network system and a solution replacement method applied to the above-mentioned liquid-cooled secondary side ring network system. Attached Figure Description

[0061] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0062] Figure 1 is a schematic diagram of an embodiment of the liquid-cooled secondary side ring network system provided in this application;

[0063] Figure 2 is a top view schematic diagram of an embodiment of the liquid-cooled secondary side ring network system provided in this application;

[0064] Figure 3 is an isometric view of an embodiment of the liquid-cooled secondary-side ring network system provided in this application;

[0065] Figure 4 is a schematic diagram of the main return loop, the main supply loop and related connecting pipelines;

[0066] Figure 5 is a partial enlarged view of some of the structures in Figure 4;

[0067] Figure 6 is a schematic diagram of a three-piece dual-control ball valve;

[0068] Figure 7 is a schematic diagram of the structure of the first pipe section;

[0069] Figure 8 is a side view of the first pipe section;

[0070] Figure 9 is a schematic diagram of the second pipe section;

[0071] Figure 10 is a side view of the second pipe section;

[0072] Figure 11 is a schematic diagram of the third pipe section;

[0073] Figure 12 is a structural schematic diagram of the fourth and fifth pipe sections;

[0074] Figure 13 is a schematic flowchart of the solution replacement method provided in this application.

[0075] In Figures 1-13: 1-Liquid-cooled cabinet, 2-Inter-row air conditioner, 3-Heat exchange unit; 10-Main return loop; 20-Main supply loop; 100-First pipe section; 101-First main pipe body, 102-First pull-out tee, 103-First elbow connecting pipe, 104-First main pipe chuck, 105-First branch pipe chuck, 106-First butterfly valve; 200-Second pipe section; 201-Second main pipe body, 202-Second pull-out tee, 203-Second elbow connecting pipe, 204-Second main pipe chuck, 205-Second branch pipe chuck, 206-Second butterfly valve; 300-Third pipe section; 301-Third main pipe body, 302-Third main pipe chuck; 400-Fourth pipe section; 401-Fourth main pipe body, 402-Fourth elbow connecting pipe, 403-Fourth main pipe chuck, 404-First vent valve, 405-First drain valve; 500-Fifth pipe section; 501-Fifth main pipe body, 502-Third elbow connecting pipe, 503-Fifth main pipe chuck, 504-Second vent valve, 505-Second drain valve; 601-Cabinet liquid outlet branch, 602-Cabinet liquid inlet branch, 603-Heat exchange unit liquid return branch, 604-Heat exchange unit liquid supply branch; 701-Displacement fluid inflow pipe, 702-Displacement fluid outflow pipe, 703-Solution displacement pump, 704-First control valve, 705-Pump on / off valve; 801-pH probe, 802-Conductivity probe, 803-Turbidimeter, 804-Corrosion rate probe; 901 - Three-piece dual-control ball valve, 902 - First pressure sensor, 903 - Electric switching valve, 904 - Second pressure sensor, 905 - Electric regulating valve. Specific Implementation

[0076] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0077] The core of this application is to provide a liquid-cooled secondary-side ring network system that can replace the coolant online, effectively improving working efficiency and avoiding adverse effects caused by coolant deterioration.

[0078] Another objective of this application is to provide a liquid-cooled micro-module comprising the above-described liquid-cooled secondary-side ring network system and a solution displacement method applied to the above-described liquid-cooled secondary-side ring network system.

[0079] Some embodiments of this application disclose a liquid-cooled secondary-side ring network system applied to a cabinet liquid-cooling system. The liquid-cooled secondary-side ring network system includes a main return loop 10, a main supply loop 20, a displacement fluid inflow pipe 701, and a displacement fluid outflow pipe 702. The main return loop 10 is provided with a plurality of cabinet outlet branches 601 for connecting to the liquid-cooled cabinet 1 and heat exchange unit return branches 603 for connecting to the heat exchange unit 3. The main supply loop 20 is provided with a plurality of cabinet inlet branches 602 for connecting to the liquid-cooled cabinet 1 and heat exchange unit supply branches 603 for connecting to the heat exchange unit 3. 04; One end of the displacement fluid inflow pipe 701 is connected to the main return fluid loop 10, and the other end is connected to the first container for holding the displacement fluid; the displacement fluid inflow pipe 701 is equipped with a solution displacement pump 703 for providing power; the solution displacement pump 703 is used to draw the displacement fluid in the first container to the main inlet loop; one end of the displacement fluid outflow pipe 702 is connected to the main supply fluid loop 20, and the other end is connected to the second container for collecting the liquid flowing out of the main supply fluid loop 20; the displacement fluid outflow pipe 702 is equipped with a first control valve 704 for controlling the opening and closing of the displacement fluid outflow pipe 702.

[0080] It should be noted that, in some embodiments of this application, the heat exchange unit 3 can be used to isolate the liquid-cooled secondary ring network system of this application from the primary ring network.

[0081] It should be noted that, in order to control the start and stop of the solution displacement pump 703, as shown in Figure 5, a pump switch valve 705 can be installed in the displacement fluid inflow pipeline 701. The start and stop of the solution displacement pump 703 can be controlled by controlling the opening and closing of the pump switch valve 705. In actual use, when the pump switch valve 705 is opened, the solution displacement pump 703 starts; when the pump switch valve 705 is closed, the solution displacement pump 703 stops working.

[0082] In some embodiments of this application, the first control valve 704 can be configured as an angle differential pressure bypass valve or as other valve body structures that meet the requirements. The specific configuration will be determined according to the actual situation and will not be elaborated here.

[0083] In practical use, the setting value of the angle differential pressure bypass valve is determined according to the liquid supply pressure of the liquid cooling secondary side system. The normal supply pressure is 3 bar, and the angle differential pressure bypass valve is set to 3 bar. When the angle differential pressure bypass valve detects that the supply side pressure is greater than 3 bar, the angle differential pressure bypass valve opens to drain the system. The drain side is connected to the solution recovery tank, and the inlet side is connected to the second container. During solution replacement, it is necessary to maintain the liquid level in the second container to prevent the solution replacement pump 703 from drawing in air.

[0084] In the process of using the liquid-cooled secondary side ring network system provided in some embodiments of this application, the coolant in the main liquid supply loop 20 enters the cooling flow path inside the liquid-cooled cabinet 1 through the cabinet inlet branch 602 to cool the liquid-cooled cabinet 1. After cooling the liquid-cooled cabinet 1, the coolant flows back to the main return loop 10 through the cabinet outlet branch 601. The coolant in the main return loop 10 flows into the heat exchange flow path in the heat exchange unit 3 through the heat exchange unit return branch 603, and flows through the external equipment for heat exchange, so that the coolant is cooled down. The cooled coolant enters the heat exchange unit 3 and flows back to the main liquid supply loop 20 through the heat exchange unit supply branch 604.

[0085] Specifically, an external device can be installed outside the heat exchange unit 3. The external device is used to connect to the main liquid supply loop 20 and the main liquid return loop 10 through the heat exchange unit return liquid branch 603 and the heat exchange unit supply liquid branch 604. The coolant in the main liquid return loop 10 flows out to the external device through the heat exchange unit return liquid branch 603 and undergoes heat exchange in the external device to cool down the coolant. After cooling down, the coolant flows back to the main liquid supply loop 20 through the heat exchange unit supply liquid branch 604, so as to realize the circulation of coolant in the main liquid supply loop 20 and the main liquid return loop 10.

[0086] In actual use, when it is necessary to replace the coolant in the main supply loop 20 and the main return loop 10, the liquid cooling secondary side ring network system can be kept in working condition. The solution replacement pump 703 is turned on, and the replacement liquid in the first container is drawn into the main return loop 10, increasing the coolant flow rate in the main return loop 10. As new replacement liquid is continuously drawn into the main return loop 10, the coolant in the main supply loop 20 and the main return loop 10 is squeezed into the replacement liquid outlet pipe 702. The first control valve 704 of the replacement liquid outlet pipe 702 is an angle differential pressure bypass valve. After the pressure in the replacement liquid outlet pipe 702 reaches the opening pressure of the angle differential pressure bypass valve, the angle differential pressure bypass valve will automatically open, allowing the coolant in the main supply loop 20 and the main return loop 10 to flow out into the second container, completing the replacement of the original coolant in the main supply loop 20 and the main return loop 10.

[0087] In some embodiments of this application, during the replacement of coolant in the main supply loop 20 and the main return loop 10, the completion of the replacement process can be determined based on the working time of the solution replacement pump 703. Alternatively, a relevant detection structure can be set to detect the coolant in the main supply loop 20 and the main return loop 10. During the replacement process, the replacement ends when the detection structure meets the requirements. Of course, other methods for determining whether the replacement has ended can also be used, depending on the actual situation, and will not be elaborated here.

[0088] In some embodiments of this application, the displacement fluid inflow pipe 701 is connected to one end of the main return liquid loop 10 away from the heat exchange unit return liquid branch 603; the displacement fluid outflow pipe 702 is connected to one end of the main return liquid loop 10 away from the heat exchange unit supply liquid branch 604.

[0089] As shown in Figure 4, in the actual setup process, the displacement fluid inflow pipe 701 and displacement fluid outflow pipe 702 are set at the end of the main return loop 10 and the main supply loop 20 away from the heat exchange unit 3. When the displacement fluid in the first container is drawn into the main return loop 10, since the connection position of the displacement fluid inflow pipe 701 and the main return loop 10 is far from the position of the main return loop 10 connected to the external equipment, the displacement fluid newly entering the main return loop 10 can have a long flow distance in the main return loop 10, so as to fully replace the coolant in the main return loop 10 and the main supply loop 20.

[0090] Furthermore, as shown in Figures 1-4, the main return loop 10 is provided with a first vent hole and a first drain hole, and the main supply loop 20 is provided with a second vent hole and a second drain hole; the displacement fluid inflow pipe 701 is connected to the first drain hole, and the displacement fluid outflow pipe 702 is connected to the second drain hole.

[0091] In some embodiments of this application, the intermediate replacement fluid inflow pipe 701 is directly connected to the first drain hole that was originally provided on the original main return fluid loop 10, and the replacement fluid outflow pipe 702 is directly connected to the second drain hole that was originally provided on the original main supply fluid loop 20, avoiding the need to open new connection interfaces; this can effectively simplify the connection operation steps and reduce the difficulty of operation.

[0092] In addition, during actual use, when it is not necessary to replace the coolant in the main return loop 10 and the main supply loop 20, the replacement fluid inflow pipe 701 can guide the sludge flowing out of the first drain hole, making it convenient to collect the sludge flowing out of the first drain hole; at the same time, the replacement fluid outflow pipe 702 can guide the sludge flowing out of the second drain hole, making it convenient to collect the sludge flowing out of the second drain hole.

[0093] On the other hand, after the replacement fluid inlet pipe 701 guides the sewage flowing out of the first drain hole and the replacement fluid outlet pipe 702 guides the sewage flowing out of the second drain hole, in order to avoid the sewage from contaminating the replacement fluid inlet pipe 701 and the replacement fluid outlet pipe 702, the replacement fluid inlet pipe 701 and the replacement fluid outlet pipe 702 can also be cleaned. During the cleaning process, the replacement fluid inlet pipe 701 and the replacement fluid outlet pipe 702 can be dismantled, depending on the actual situation.

[0094] Based on the above embodiments, in order to obtain the quality information of the coolant in the main return loop 10 and the main supply loop 20 in a timely manner, as shown in Figure 5, the main supply loop 20 can be equipped with a pH probe 801 for detecting the pH value of the liquid inside, a conductivity probe 802 for detecting the conductivity of the liquid inside the main supply loop 20, a turbidimeter 803 for detecting the turbidity of the liquid inside the main supply loop 20, a corrosion rate probe 804 for detecting the corrosion of the liquid inside the main supply loop 20, a controller, and an alarm. When at least one of the pH information detected by the pH probe 801, the conductivity information detected by the conductivity probe 802, the turbidity information detected by the turbidimeter 803, and the corrosion rate information detected by the corrosion rate probe 804 fails to meet the preset requirements, the controller controls the alarm to issue an alarm message.

[0095] It should be noted that, in some embodiments of this application, the number of pH probe 801, conductivity probe 802, turbidity meter 803, and corrosion rate probe 804 can each be set to one. However, considering the accuracy of the detection process, multiple pH probes 801, multiple conductivity probes 802, multiple turbidity meters 803, and multiple corrosion rate probes 804 can also be set, and these probes can be distributed at different positions within the main return loop 10 and the main supply loop 20. In actual use, the average value of the data detected by multiple pH probes 801 is taken as the detected pH information, and the average value of the data detected by multiple conductivity probes 802 is taken as the detected conductivity information. The system uses the average value of data detected by multiple turbidity meters 803 as the turbidity information and the average value of data detected by multiple corrosion rate probes 804 as the corrosion information. The controller stores preset pH range, conductivity range, turbidity range, and corrosion range. When at least one of the following conditions is met, it is determined that there is a problem with the quality of the coolant in the main return loop 10 and the main supply loop 20, and the coolant in the main return loop 10 and the main supply loop 20 needs to be replaced. The specific judgment conditions include: the detected pH information is not within the preset pH range, the detected conductivity information is not within the preset conductivity range, the detected turbidity information is not within the preset turbidity range, and the detected corrosion information is not within the preset corrosion range.

[0096] It should be noted that, in some embodiments of this application, the warning device mentioned may be a warning light, a buzzer, or a warning program in an external device used to display warning information. The specific device is determined according to the actual situation and will not be elaborated here.

[0097] On the other hand, when at least one of the pH information detected by the pH probe 801, the conductivity information detected by the conductivity probe 802, the turbidity information detected by the turbidity meter 803, and the corrosion rate information detected by the corrosion rate probe 804 fails to meet the preset requirements, the controller can directly control the solution replacement pump 703 to start and control the first control valve 704 to open, automatically performing the replacement operation of the coolant in the main return loop 10 and the main supply loop 20.

[0098] Of course, you can also set a start switch for the replacement operation of coolant in the main return loop 10 and the main supply loop 20, such as a control button. The replacement operation of coolant in the main return loop 10 and the main supply loop 20 will only be performed when the above start switch is turned on. The specific method depends on the actual situation and will not be elaborated here.

[0099] Based on the above embodiments, the liquid-cooled secondary side ring network system may also include a display for connecting to the controller. The display is used to display the pH information detected by the pH probe 801, the conductivity information detected by the conductivity probe 802, the turbidity information detected by the turbidity meter 803, and the corrosion rate information detected by the corrosion rate probe 804.

[0100] In actual use, the pH information detected by pH probe 801, the conductivity information detected by conductivity probe 802, the turbidity information detected by turbidity meter 803, and the corrosion rate information detected by corrosion rate probe 804 can be directly observed on the display, which makes it convenient for the operator to observe the quality information of coolant in the main return loop 10 and the main supply loop 20 in real time.

[0101] Specifically, when the coolant in the main return loop 10 and the main supply loop 20 is being replaced, the real-time flow information of the replacement fluid flowing into the pipe 701 and the real-time flow information of the replacement fluid flowing out of the pipe 702 can also be displayed on the monitor. The specific details are determined according to the actual situation and will not be elaborated here.

[0102] In some embodiments of this application, both the main return loop 10 and the main supply loop 20 include a first pipe section 100. The first pipe section 100 includes a first main pipe body 101 and a first elbow connecting pipe 103. The first main pipe body 101 is provided with a first pull-out tee 102. The two ends of the first main pipe body 101 are respectively provided with a first main pipe chuck 104 and a first butterfly valve 106. The first elbow connecting pipe 103 is connected to the first main pipe body 101. The first elbow connecting pipe 103 located in the first pipe section 100 of the main return loop 10 is connected to the cabinet liquid outlet branch 601 connected to the liquid-cooled cabinet 1. The first elbow connecting pipe 103 located in the first pipe section 100 of the main supply loop 20 is connected to the cabinet liquid inlet branch 602 connected to the liquid-cooled cabinet 1.

[0103] As shown in Figures 7 and 8, the first elbow connecting pipe 103 is equipped with a first branch pipe clamp 105, and the cabinet liquid outlet branch 601 or the cabinet liquid inlet branch 602 is connected to the first elbow connecting pipe 103 through the first branch pipe clamp 105.

[0104] As shown in Figures 9 and 10, both the main return loop 10 and the main supply loop 20 include a second pipe section 200. The second pipe section 200 includes a second main pipe body 201 and a second elbow connecting pipe 203. The second main pipe body 201 is provided with a second pull-out tee 202. The two ends of the second main pipe body 201 are respectively provided with a second main pipe chuck 204 and a second butterfly valve 206. The second elbow connecting pipe 203 is connected to the second main pipe body 201. The second elbow connecting pipe 203 in the second pipe section 200 of the main return loop 10 is connected to the heat exchange unit return branch 603 of the heat exchange unit 3. The second elbow connecting pipe 203 in the second pipe section 200 of the main supply loop 20 is connected to the heat exchange unit supply branch 604 of the heat exchange unit 3.

[0105] The second elbow connecting pipe 203 is provided with a second branch pipe clamp 205, and the heat exchange unit return liquid branch 603 or the heat exchange unit supply liquid branch 604 is connected to the second elbow connecting pipe 203 through the second branch pipe clamp 205.

[0106] As shown in Figure 11, both the main return loop 10 and the main supply loop 20 include a third pipe section 300, which is located between two adjacent first pipe sections 100. The third pipe section 300 includes a third main pipe body 301 and a third main pipe chuck 302. The third main pipe body 301 is used to connect two first pipe sections 100, or to connect a first pipe section 100 and a second pipe section 200, as shown in Figure 1. A third pipe section 300 is provided between every two connected first pipe sections 100.

[0107] In actual use, the first pipe section 100 is equipped with one first switch control valve or two first switch control valves spaced apart. The two first switch control valves are respectively located at both ends of the first pipe section 100 where they are connected to the cabinet liquid outlet branch 601 or the cabinet liquid inlet branch 602.

[0108] When a first pipe section 100 is equipped with a first switch control valve, if maintenance is required on the liquid-cooled cabinet 1 connected to the first pipe section 100, the first switch control valves on both sides of two adjacent liquid-cooled cabinets 1 need to be closed, and then the operation of the two adjacent liquid-cooled cabinets 1 needs to be stopped. When a first pipe section 100 is equipped with two first switch control valves, if maintenance is required on the liquid-cooled cabinet 1 connected to the first pipe section 100, the first switch control valves on both sides of the same liquid-cooled cabinet 1 need to be closed, and then the operation of the designated single liquid-cooled cabinet 1 needs to be stopped.

[0109] The second pipe section 200 is equipped with one second switch control valve or two second switch control valves spaced apart. The two second switch control valves are respectively located at both ends of the second pipe section 200 where they are connected to the heat exchange unit return liquid branch 603 or the heat exchange unit supply liquid branch 604.

[0110] When a second pipe section 200 is equipped with one second switch control valve, if maintenance is required on the heat exchange unit 3 connected to the second pipe section 200, the second switch control valves on both sides of the two adjacent heat exchange units 3 need to be closed, and then the operation of the two adjacent heat exchange units 3 needs to be stopped. When a second pipe section 200 is equipped with two second switch control valves, if maintenance is required on the heat exchange unit 3 connected to the second pipe section 200, the second switch control valves on both sides of the same heat exchange unit 3 need to be closed, and then the operation of the specified single heat exchange unit 3 needs to be stopped.

[0111] In some embodiments of this application, by setting a first switch control valve in the first pipe section 100 and a second switch control valve in the second pipe section 200, it is possible to repair one liquid cooling cabinet 1 or two adjacent liquid cooling cabinets 1 individually during the operation of the liquid cooling secondary side ring network system; and to repair one heat exchange unit 3 individually or two adjacent heat exchange units 3 individually, so as to avoid affecting the normal operation of other liquid cooling cabinets 1 or heat exchange units 3.

[0112] Based on the above embodiments, the main return loop 10 can be a first rectangular loop, which is formed by a first connecting pipe and a fourth pipe segment 400 arranged opposite each other. The first connecting pipe is provided with a first pipe segment 100, a second pipe segment 200 and a third pipe segment 300. The two ends of the fourth pipe segment 400 are respectively connected to the two first connecting pipes. The main supply loop 20 is a second rectangular loop, which is formed by a second connecting pipe and a fifth pipe segment 500 arranged opposite each other. The second connecting pipe is provided with a first pipe segment 100, a second pipe segment 200 and a third pipe segment 300. The two ends of the fifth pipe segment 500 are respectively connected to the two second connecting pipes.

[0113] It should be noted that when the main return loop 10 and the main supply loop 20 are arranged in an overlapping manner, the fourth pipe section 400 and the fifth pipe section 500 can be set as the same standard part of the same size, further reducing the types of standard parts.

[0114] The fourth pipe section 400 includes a fourth main pipe body 401, a fourth elbow connecting pipe 402, a fourth main pipe chuck 403, a first vent valve 404, and a first drain valve 405; the fifth pipe section 500 includes a fifth main pipe body 501, a third elbow connecting pipe 502, a fifth main pipe chuck 503, a second vent valve 504, and a second drain valve 505.

[0115] In the actual installation process, in order to facilitate processing and reduce costs, the first pipe section 100, the second pipe section 200, the third pipe section 300, the fourth pipe section 400 and the fifth pipe section 500 can all be set as standard parts. In the actual assembly process, the types of pipe sections are reduced, the assembly difficulty is reduced and the assembly is convenient.

[0116] As shown in Figures 1, 2, and 4, the first connecting pipe is provided with multiple cabinet liquid outlet branches 601, and the second connecting pipe is provided with multiple cabinet liquid inlet branches 602. Multiple liquid-cooled cabinets 1 are distributed along the extension direction of the first or second connecting pipe, and an inter-row air conditioner 2 is provided in the space between adjacent liquid-cooled cabinets 1. As shown in Figures 1 and 2, IT is the liquid-cooled cabinet 1, AC is the inter-row air conditioner 2, CDU1 is one of the heat exchange units 3, CDU2 is another heat exchange unit 3, and CDU is a heat exchange unit 3. In the first rectangular loop, the cabinet liquid outlet branches 601 on the two first connecting pipes are symmetrically arranged, and in the second rectangular loop, the cabinet liquid inlet branches 602 on the two second connecting pipes are symmetrically arranged, as shown in Figures 1 and 2. From one end to the other, the first connecting pipe and the second connecting pipe are arranged in sequence: heat exchange unit 3, two parallel liquid-cooled cabinets 1, inter-row air conditioner 2, two parallel liquid-cooled cabinets 1, inter-row air conditioner 2, two parallel liquid-cooled cabinets 1, inter-row air conditioner 2, two parallel liquid-cooled cabinets 1, inter-row air conditioner 2, and one liquid-cooled cabinet 1.

[0117] As shown in Figure 3, to make the spatial layout of multiple liquid-cooled cabinets 1, inter-row air conditioners 2, and heat exchange units 3 more reasonable, the total length of the ring network section connected to the liquid-cooled cabinet 1 can be the same as the width of the liquid-cooled cabinet 1, generally 600mm or 800mm; the length of the ring network section connected to the heat exchange unit 3 can be the same as the width of the heat exchange unit 3, generally 600mm; the total length of the branchless ring network pipe can generally be the same as the width of the air-cooled cabinet or inter-row air conditioner 2, generally 600mm. When the liquid-cooled cabinet 1 in the micro-module needs to be expanded online, it is only necessary to close the valves of the supply and return main pipes on both sides of the ring network section connected to the cabinet. Online expansion will not affect the operation of other liquid-cooled cabinets 1 and other equipment.

[0118] It should be noted that, specifically, the bending angles of the first elbow connecting pipe 103, the second elbow connecting pipe 203, the third elbow connecting pipe 502, and the fourth elbow connecting pipe 402 are all 90 degrees. Of course, other bending angles that meet the requirements can also be used, depending on the actual situation, which will not be elaborated here.

[0119] In some embodiments of this application, the heat exchange unit return branch 603 is located at one end of the first connecting pipe that is connected to the fourth pipe section 400, and the heat exchange unit supply branch 604 is located at one end of the second connecting pipe that is connected to the fifth pipe section 500. By placing the heat exchange unit 3 at the end position, maintenance can be easily carried out.

[0120] As shown in Figure 12, the fourth pipe section 400 and the fifth pipe section 500 can both be set as U-shaped structures. The fourth pipe section 400 is provided with a first vent hole and a first drain hole, and the fifth pipe section 500 is provided with a second vent hole and a second drain hole. The fourth pipe section 400 is provided at both ends of the length direction of the main return loop 10, and the fifth pipe section 500 is provided at both ends of the length direction of the main supply loop 20.

[0121] Both ends of the main return loop 10 have a first vent hole and a first drain hole at the fourth pipe section 400 along its length, and both ends of the main supply loop 20 have a second vent hole and a second drain hole at the fifth pipe section 500 along its length. During actual installation, the main return loop 10 and main supply loop 20 may be tilted due to uneven ground or installation errors. In cases where the tilt angle is uncertain, having a first vent hole and a first drain hole at the fourth pipe section 400 along the length of the main return loop 10, and a second vent hole and a second drain hole at the fifth pipe section 500 along the length of the main supply loop 20, ensures that gas and waste liquid within the main return loop 10 and main supply loop 20 can be smoothly discharged. Furthermore, the identical pipe structures at both ends of the main return loop 10 and the main supply loop 20 reduce the types of standard parts required, further lowering costs and installation difficulty.

[0122] As shown in Figure 12, the end of the fourth pipe section 400 is provided with a fourth main pipe chuck 403, which can be connected to the second pipe section 200, the first pipe section 100, or the third pipe section 300 through the fourth main pipe chuck 403 during actual use; the end of the fifth pipe section 500 is provided with a fifth pipe chuck, which can be connected to the second pipe section 200, the first pipe section 100, or the third pipe section 300 through the fifth main pipe chuck 503 during actual use.

[0123] During actual assembly, when the diameter of the main return loop 10 and the main supply loop 20 is less than or equal to 101.6 mm, any two adjacent pipe sections 100, 200, 300, 400, and 500 are connected by quick-release chucks and clamps.

[0124] In some embodiments of this application, quick-release chucks, clamps, etc., are used for connection, which can effectively improve connection efficiency. The main body of the first pipe section 100, the second pipe section 200, the third pipe section 300, the fourth pipe section 400, and the fifth pipe section 500 can all be made of stainless steel.

[0125] When the diameter of the main return loop 10 and the main supply loop 20 is greater than 101.6 mm, any two adjacent pipe sections 100, 200, 300 and 400 are connected by flanges.

[0126] In some embodiments of this application, as shown in FIG5, both the cabinet liquid outlet branch 601 and the cabinet liquid inlet branch 602 are equipped with three-piece dual-control ball valves 901. When the liquid-cooled cabinet 1 is disassembled, the three-piece dual-control ball valves 901 on the cabinet liquid outlet branch 601 and the cabinet liquid inlet branch 602 connected to the same liquid-cooled cabinet 1 are closed.

[0127] The specific structure of the three-piece dual-control ball valve 901 is shown in Figure 6. When maintenance of the liquid-cooled cabinet is required, close the three-piece dual-control ball valve 901, open the threaded ball valve in the three-piece dual-control ball valve 901, and drain the liquid remaining in the valve; then the liquid-cooled cabinet 1 can be disassembled, repaired, or replaced.

[0128] In some embodiments of this application, the cabinet liquid outlet branch 601 is equipped with a second pressure sensor 904 and an electric switching valve 905; the cabinet liquid inlet branch 602 is equipped with a first pressure sensor 902 and an electric regulating valve 903; wherein, the first pressure sensor 902 is used to detect the liquid flow pressure in the cabinet liquid inlet branch 602, and the electric regulating valve 903 is used to adjust the opening degree of the cabinet liquid inlet branch 602, which can be used to regulate the flow rate; the second pressure sensor 904 is used to detect the liquid flow pressure in the cabinet liquid outlet branch 601, and the electric switching valve 905 is used to control the opening and closing of the cabinet liquid outlet branch 601.

[0129] In actual use, the first pressure sensor 902 transmits the detected first pressure information to the relevant controller, and the second pressure sensor 904 transmits the detected second pressure information to the controller. The controller calculates the pressure difference between the first and second pressure information based on the received first and second pressure information. When the pressure difference between the first and second pressure information is greater than the preset pressure difference range, the opening of the electric regulating valve 905 needs to be reduced. When the pressure difference between the first and second pressure information is less than the preset pressure difference range, the opening of the electric regulating valve 905 needs to be increased.

[0130] In some embodiments of this application, by setting a first pressure sensor 902, a second pressure sensor 904, an electric regulating valve 905, and an electric switching valve 903, the pressure information of the cabinet liquid outlet branch 601 and the cabinet liquid inlet branch 602 can be monitored in real time to avoid situations where the pressure does not meet the requirements, and the pressure can be adjusted in a timely manner when the differential pressure information does not meet the requirements.

[0131] In some embodiments of this application, as shown in Figures 1 to 4, the main liquid supply loop 20 is arranged around the outer periphery of the main liquid return loop 10, and the main liquid supply loop 20 and the main liquid return loop 10 are located in the same mounting plane; this can effectively reduce the space occupied by the liquid cooling secondary side ring network system in the vertical direction.

[0132] On the other hand, a water collection tray and a leakage detection device can be installed around the main liquid supply loop 20 and the main liquid return loop 10; when the leakage detection device detects leakage information, it controls the electric switch valve 903 on the cabinet liquid outlet branch 601 at the corresponding position to close.

[0133] In actual use, multiple different leak detection devices can be set for different connecting pipe sections in the main liquid supply loop 20 and the main liquid return loop 10. Each leak detection device is equipped with corresponding location information. The leak detection device at the corresponding location transmits the leak information to the controller. The controller obtains the location of the leaking pipe section based on the location of the leak detection device that sent the leak information, so as to repair or replace the leaking pipe section in a timely manner.

[0134] In addition to the liquid-cooled secondary side ring network system described above, this application also provides a liquid-cooled micro-module including a cabinet body, a liquid-cooled cabinet 1, an inter-row air conditioner 2, a heat exchange unit 3, and the liquid-cooled secondary side ring network system disclosed in the above embodiments. For the structure of other parts of the liquid-cooled micro-module, please refer to the relevant technology, which will not be described in detail here.

[0135] In some embodiments of this application, the liquid-cooled micro-module mentioned can be a liquid-cooled micro-module used to cool and reduce the temperature of the server, or it can be other liquid-cooled micro-modules that meet the requirements. The specific choice depends on the actual situation and will not be elaborated here.

[0136] In actual installation, the liquid-cooled secondary side ring network system is not limited to being placed under the raised floor. When there is no raised floor, it can be placed in the ceiling space directly above the cold aisle. A water collection tray is set under the liquid-cooled secondary side ring network system, and a leak detection rope is laid to detect leaks.

[0137] In addition to the liquid-cooled secondary-side ring network system disclosed in the above embodiments, this application also provides a solution replacement method applied to the liquid-cooled secondary-side ring network system disclosed in the above embodiments. The main liquid supply loop 20 of the liquid-cooled secondary-side ring network is equipped with a pH probe 801 for detecting the pH value of the liquid inside it, a conductivity probe 802 for detecting the conductivity of the liquid in the main liquid supply loop 20, a turbidimeter 803 for detecting the turbidity of the liquid in the main liquid supply loop 20, and a corrosion rate probe 804 for detecting the corrosion of the liquid in the main liquid supply loop 20.

[0138] In some embodiments of this application, the solution displacement method includes:

[0139] Step S1: Obtain the pH information detected by pH probe 801, the conductivity information detected by conductivity probe 802, the turbidity information detected by turbidimeter 803, and the corrosion rate information detected by corrosion rate probe 804.

[0140] Step S2: Determine whether the following conditions are met simultaneously: pH information is within a preset pH range, conductivity information is within a preset conductivity range, turbidity information is within a preset turbidity range, and corrosion rate information is within a preset corrosion rate range. If these conditions are met simultaneously, the coolant in the main return loop 10 and the main supply loop 20 meets the requirements. If these conditions are not met simultaneously, proceed to step S3.

[0141] Step S3: Control the solution replacement pump 703 to start and control the first control valve 704 to open, so as to draw the replacement liquid in the first container to the main return liquid loop 10. The original coolant in the main supply liquid loop 20 and the main return liquid loop 10 is discharged into the second container through the replacement liquid outflow pipe 702.

[0142] In the above solution displacement method, after step S3, the following is also included:

[0143] Step S4: Determine whether the working time of the solution displacement pump 703 has reached the preset time. If the working time of the solution displacement pump 703 has reached the preset time, control the solution displacement pump 703 to stop working and close the first control valve 704. If the working time of the solution displacement pump 703 has not reached the preset time, return to step S3 above.

[0144] In some embodiments of this application, the working time of the solution replacement pump 703 is used to determine whether the original coolant in the main supply loop 20 and the main return loop 10 has been completely replaced.

[0145] Due to limitations in the flow rate of the original coolant in the main supply loop 20 and the main return loop 10, and also due to the influence of the pipeline length of the main supply loop 20 and the main return loop 10, the method of determining whether the original coolant in the main supply loop 20 and the main return loop 10 has been completely replaced by simply relying on the working time of the solution replacement pump 703 is not very accurate. Therefore, step S3 can be followed by:

[0146] Step S5: Determine whether the following conditions are met simultaneously: pH information is within a preset pH range, conductivity information is within a preset conductivity range, turbidity information is within a preset turbidity range, and corrosion rate information is within a preset corrosion rate range. If these conditions are met simultaneously, the solution replacement pump 703 is stopped, and the first control valve 704 is closed. If these conditions are not met simultaneously, the process returns to step S3.

[0147] It should be noted that in step S5, during the process of determining whether the pH information, conductivity information, turbidity information, and corrosion rate information are simultaneously within the preset pH range, the detected pH information, conductivity information, turbidity information, and corrosion rate information cannot be instantaneous values. The state in which the pH information, conductivity information, turbidity information, and corrosion rate information are simultaneously within the preset pH range, conductivity information, turbidity information, and corrosion rate information are simultaneously within the preset corrosion rate range needs to be maintained for a certain period of time before it can be determined that the replacement is complete.

[0148] In some embodiments of this application, an alarm can also be installed in the liquid-cooled secondary side ring network. In actual use, the solution replacement method includes:

[0149] Step S1: Obtain the pH information detected by pH probe 801, the conductivity information detected by conductivity probe 802, the turbidity information detected by turbidimeter 803, and the corrosion rate information detected by corrosion rate probe 804.

[0150] Step S2: Determine whether the following conditions are met simultaneously: pH information is within a preset pH range, conductivity information is within a preset conductivity range, turbidity information is within a preset turbidity range, and corrosion rate information is within a preset corrosion rate range. If these conditions are met simultaneously, the coolant in the main return loop 10 and the main supply loop 20 meets the requirements. If these conditions are not met simultaneously, proceed to step S201.

[0151] Step S201: Control the alarm to issue a warning message;

[0152] Step S3: Control the solution replacement pump 703 to start and control the first control valve 704 to open, so as to draw the replacement liquid in the first container to the main return liquid loop 10. The original coolant in the main supply liquid loop 20 and the main return liquid loop 10 is discharged into the second container through the replacement liquid outflow pipe 702.

[0153] Step S6: Determine whether the following conditions are met simultaneously: pH information is within a preset pH range, conductivity information is within a preset conductivity range, turbidity information is within a preset turbidity range, and corrosion rate information is within a preset corrosion rate range. If these conditions are met simultaneously, control the solution replacement pump 703 to stop working, close the first control valve 704, and control the alarm to stop issuing warning information. If these conditions are not met simultaneously, return to step S3.

[0154] The embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. Any combination of embodiments provided in this application is within the protection scope of this invention and will not be elaborated upon here.

[0155] The liquid-cooled secondary-side ring network system, liquid-cooled micro-module, and solution replacement method provided in this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of this application.

Claims

1. A liquid-cooled secondary side ring network system, characterized by, The application relates to a liquid cooling system, which comprises: a main liquid return loop (10) provided with a plurality of cabinet liquid outlet branches (601) configured to be connected with a liquid cooling cabinet (1) and a heat exchange unit liquid return branch (603) configured to be connected with a heat exchange unit (3); a main liquid supply loop (20) provided with a plurality of cabinet liquid inlet branches (602) configured to be connected with the liquid cooling cabinet (1) and a heat exchange unit liquid supply branch (604) configured to be connected with the heat exchange unit (3); a displacement liquid inflow pipeline (701) having one end connected with the main liquid return loop (10) and the other end connected with a first container configured to store displacement liquid; the displacement liquid inflow pipeline (701) is provided with a solution displacement pump (703) configured to provide power; the solution displacement pump (703) is configured to draw the displacement liquid in the first container to the main liquid return loop (10); a displacement liquid outflow pipeline (702) having one end connected with the main liquid supply loop (20) and the other end connected with a second container configured to receive liquid flowing out of the main liquid supply loop (20); the displacement liquid outflow pipeline (702) is provided with a first control valve (704) configured to control the opening and closing of the displacement liquid outflow pipeline (702).

2. The liquid-cooled secondary side ring network system of claim 1, wherein, The displacement liquid inflow pipeline (701) is connected to one end of the main liquid return loop (10) away from the heat exchange unit liquid return branch (603); The displacement liquid outflow pipeline (702) is connected to one end of the main liquid supply loop (20) away from the heat exchange unit liquid supply branch (604).

3. The liquid-cooled secondary side ring network system of claim 1, wherein, The main liquid supply loop (20) is provided with a PH probe (801) configured to detect the PH value of liquid inside the main liquid supply loop (20), a conductivity probe (802) configured to detect the conductivity of liquid in the main liquid supply loop (20), a turbidity meter (803) configured to detect the turbidity of liquid in the main liquid supply loop (20), a corrosion rate probe (804) configured to detect the corrosion condition of liquid in the main liquid supply loop (20), a controller and a warning device; When at least one of the PH information detected by the PH probe (801), the conductivity information detected by the conductivity probe (802), the turbidity information detected by the turbidity meter (803) and the corrosion rate information detected by the corrosion rate probe (804) does not meet the preset requirement, the controller controls the warning device to issue warning information.

4. The liquid-cooled secondary side ring network system of claim 3, wherein, The application further comprises a display configured to be connected with the controller, and the display is configured to display the PH information detected by the PH probe (801), the conductivity information detected by the conductivity probe (802), the turbidity information detected by the turbidity meter (803) and the corrosion rate information detected by the corrosion rate probe (804).

5. The liquid-cooled secondary side ring network system of claim 1, wherein, The main liquid return loop (10) is provided with a first exhaust hole and a first pollution hole, and the main liquid supply loop (20) is provided with a second exhaust hole and a second pollution hole; The displacement liquid inflow pipeline (701) is connected to the first pollution hole, and the displacement liquid outflow pipeline (702) is connected to the second pollution hole.

6. The liquid cooled secondary side ring network system of any of claims 1-5, wherein, The main liquid return loop (10) and the main liquid supply loop (20) each comprise a first pipe section (100), which comprises: A first main pipe body (101) is provided with a first drawn tee (102), and two ends of the first main pipe body (101) are respectively provided with a first main pipe chuck (104) and a first butterfly valve (106); A first elbow connecting pipe (103) is in communication with the first main pipe body (101); The first elbow connecting pipe (103) in the first pipe section (100) in the main liquid return loop (10) is connected with the cabinet liquid outlet branch (601) connecting the liquid cooling cabinet (1); The first elbow connecting pipe (103) in the first pipe section (100) in the main liquid supply loop (20) is connected with the cabinet liquid inlet branch (602) connecting the liquid cooling cabinet (1).

7. The liquid-cooled secondary side ring network system of claim 6, wherein, The main liquid return loop (10) and the main liquid supply loop (20) each comprise a second pipe section (200), which comprises: A second main pipe body (201) is provided with a second drawn tee (202), and two ends of the second main pipe body (201) are respectively provided with a second main pipe chuck (204) and a second butterfly valve (206); A second elbow connecting pipe (203) is in communication with the second main pipe body (201); The second elbow connecting pipe (203) in the second pipe section (200) in the main liquid return loop (10) is connected with the heat exchange unit liquid return branch (603) connecting the heat exchange unit (3); The second elbow connecting pipe (203) in the second pipe section (200) in the main liquid supply loop (20) is connected with the heat exchange unit liquid supply branch (604) connecting the heat exchange unit (3).

8. The liquid-cooled secondary side ring network system of claim 7, wherein, It also comprises an inter-row air conditioner arranged between adjacent liquid cooling cabinets (1), and the main liquid return loop (10) and the main liquid supply loop (20) each comprise a third pipe section (300) arranged at a position corresponding to the inter-row air conditioner.

9. The liquid-cooled secondary side ring network system of claim 7, wherein, The first pipe section (100) is provided with one first switch control valve or two first switch control valves arranged at intervals, and the two first switch control valves are arranged at two ends of the first pipe section (100) at positions connected with the cabinet liquid outlet branch (601) or the cabinet liquid inlet branch (602); The second pipe section (200) is provided with one second switch control valve or two second switch control valves arranged at intervals, and the two second switch control valves are arranged at two ends of the second pipe section (200) at positions connected with the heat exchange unit liquid return branch (603) or the heat exchange unit liquid supply branch (604).

10. The liquid-cooled secondary side ring network system of claim 8, wherein, The main liquid return loop (10) is a first rectangular loop, which is formed by oppositely arranged first connecting pipes and oppositely arranged fourth pipe sections (400), and the first connecting pipes are provided with the first pipe section (100), the second pipe section (200) and the third pipe section (300); two ends of the fourth pipe section (400) are respectively connected to two first connecting pipes; The main liquid supply loop (20) is a second rectangular loop formed by oppositely arranged second connecting pipelines and oppositely arranged fifth pipe sections (500), the second connecting pipelines are provided with the first pipe section (100), the second pipe section (200) and the third pipe section (300), and the two ends of the fifth pipe section (500) are connected to two second connecting pipelines.

11. The liquid-cooled secondary side ring network system of claim 10, wherein, The fourth pipe section (400) and the fifth pipe section (500) are both U-shaped structures, the fourth pipe section (400) is provided with a first exhaust hole and a first blowdown hole, and the fifth pipe section (500) is provided with a second exhaust hole and a second blowdown hole.

12. The liquid-cooled secondary side ring network system of claim 10, wherein, The heat exchange unit liquid return branch (603) is arranged at one end of the first connecting pipeline connected with the fourth pipe section (400), and the heat exchange unit liquid supply branch (604) is arranged at one end of the second connecting pipeline connected with the fifth pipe section (500). The first connecting pipeline is provided with a plurality of cabinet liquid outlet branches (601), the second connecting pipeline is provided with a plurality of cabinet liquid inlet branches (602), a plurality of liquid cooling cabinets (1) are distributed along the extension direction of the first connecting pipeline or the second connecting pipeline, and an inter-row air conditioner (2) is arranged in the space between adjacent liquid cooling cabinets (1).

13. The liquid-cooled secondary side ring network system of claim 10, wherein, The first pipe section (100), the second pipe section (200), the third pipe section (300), the fourth pipe section (400) and the fifth pipe section (500) are all standard parts.

14. The liquid-cooled secondary side ring network system of claim 10, wherein, The pipe diameters of the main liquid return loop (10) and the main liquid supply loop (20) are less than or equal to 101.6 mm, and any two adjacent ones of the first pipe section (100), the second pipe section (200), the third pipe section (300) and the fourth pipe section (400) are connected by a quick-mount chuck and a clamp. Alternatively, the pipe diameters of the main liquid return loop (10) and the main liquid supply loop (20) are greater than 101.6 mm, and any two adjacent ones of the first pipe section (100), the second pipe section (200), the third pipe section (300) and the fourth pipe section (400) are connected by a flange.

15. The liquid cooled secondary side ring network system of any of claims 1-5, wherein, The cabinet liquid outlet branch (601) and the cabinet liquid inlet branch (602) are both provided with a three-piece double-control ball valve (901). When the liquid cooling cabinet (1) is disassembled, the three-piece double-control ball valves (901) on the cabinet liquid outlet branch (601) and the cabinet liquid inlet branch (602) connected with the same liquid cooling cabinet (1) are closed.

16. The liquid cooled secondary side ring network system of any of claims 1-5, wherein, The cabinet liquid inlet branch (602) is provided with a first pressure sensor (902) and an electric regulating valve (905). The cabinet liquid outlet branch (601) is provided with a second pressure sensor (904) and an electric on-off valve (903).

17. The liquid-cooled secondary side ring network system of claim 16, wherein, The main liquid supply loop (20) and the main liquid return loop (10) are provided with a water collecting disc and a liquid leakage detection part outside the periphery thereof. When the liquid leakage detection part detects liquid leakage information, the electric on-off valve (903) on the cabinet liquid inlet branch (602) at the corresponding position is closed.

18. The liquid cooled secondary side ring network system of any of claims 1-5, wherein, The main liquid supply loop (20) is arranged outside the main liquid return loop (10) and in the same installation plane.

19. The liquid cooled secondary side ring network system of any of claims 1-5, wherein, The liquid cooling secondary side ring network system is installed in the lower part of the overhead floor or in the ceiling.

20. A liquid-cooled micro-module, characterized by The liquid cooling secondary side ring network system comprises a cabinet main body, a liquid cooling cabinet (1), an inter-row air conditioner (2), a heat exchange unit (3), and the liquid cooling secondary side ring network system of any one of claims 1-19.

21. A solution replacement method, characterized by, The liquid cooling secondary side ring network system of any one of claims 1-18 is applied to the liquid cooling secondary side ring network system; the main liquid supply loop (20) of the liquid cooling secondary side ring network system is provided with a PH probe (801) configured to detect the PH value of the liquid inside, a conductivity probe (802) configured to detect the conductivity of the liquid in the main liquid supply loop (20), a turbidity meter (803) configured to detect the turbidity of the liquid in the main liquid supply loop (20), and a corrosion rate probe (804) configured to detect the corrosion condition of the liquid in the main liquid supply loop (20). The solution replacement method comprises: The PH information detected by the PH probe (801), the conductivity information detected by the conductivity probe (802), the turbidity information detected by the turbidity meter (803), and the corrosion rate information detected by the corrosion rate probe (804) are obtained. It is determined whether the PH information is within the preset PH range, the conductivity information is within the preset conductivity range, the turbidity information is within the preset turbidity range, and the corrosion rate information is within the preset corrosion rate range simultaneously. If the PH information is within the preset PH range, the conductivity information is within the preset conductivity range, the turbidity information is within the preset turbidity range, and the corrosion rate information is within the preset corrosion rate range simultaneously, the cooling liquid in the current main liquid return loop (10) and the main liquid supply loop (20) meets the requirements. If the PH information is not within the preset PH range, the conductivity information is not within the preset conductivity range, the turbidity information is not within the preset turbidity range, and the corrosion rate information is not within the preset corrosion rate range, the next step is entered. The solution replacement pump (703) is started, and the first control valve (704) is opened to draw the replacement liquid in the first container to the main liquid return loop (10). The original cooling liquid in the main liquid supply loop (20) and the main liquid return loop (10) is discharged to the second container through the replacement liquid outflow pipeline (702).

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