Liquid distribution module, cooling capacity distribution unit, liquid cooling system and data center

Abstract

The invention relates to the technical field of cooling, in particular to a liquid distribution module, a cooling capacity distribution unit, a liquid cooling system and a data center. The liquid distribution module comprises a shell and a device group; the inner space of the shell comprises a containing cavity, a liquid supplementing cavity and a device cavity which are isolated from one another, at least one part of the containing cavity forms a liquid storage area used for storing liquid, and the liquid storage area is used for being connected into an external liquid path; the shell comprises a liquid supplementing port communicated with the liquid supplementing cavity, a liquid injection port communicated with the device cavity and a liquid outlet port, and the liquid injection port is used for externally supplying liquid; the device group comprises a pump body accommodated in the device cavity, a first three-way valve group and a second three-way valve group, three ports of the first three-way valve group are respectively connected with the liquid supplementing cavity, an inlet of the pump body and the liquid injection port, and three ports of the second three-way valve group are respectively connected with the liquid storage area, an outlet of the pump body and the liquid outlet port. The system architecture of the cooling capacity distribution unit can be simplified, and modular installation and maintenance can be achieved.

Description

Technical Field

[0001] This application relates to the field of cooling technology, and in particular to a liquid distribution module, a cooling capacity distribution unit, a liquid cooling system, and a data center. Background Technology

[0002] As data centers continue to expand in scale, their high-performance computing capabilities also need to be improved. Traditional data centers are equipped with cooling dispensing units (CDUs) to distribute cooling capacity. One side of the CDU connects to an external cooling source, while the other side extends to the servers to dissipate heat.

[0003] Cooling distribution systems are typically installed at the customer's site. However, the cabinet layout of traditional cooling distribution systems requires a large amount of space for liquid replenishment components, making subsequent unit installation and maintenance very difficult. Summary of the Invention

[0004] This application provides a liquid distribution module, a cooling capacity distribution unit, a liquid cooling system, and a data center, which can simplify the system architecture and enable modular installation and maintenance.

[0005] In a first aspect, this application provides a liquid distribution module, which includes a housing and a device assembly. The internal space of the housing includes a containment cavity, a replenishment cavity, and a device cavity that are isolated from each other. At least a portion of the containment cavity constitutes a liquid storage area for storing liquid, and the liquid storage area is used to connect to an external liquid circuit. The housing includes a replenishment port communicating with the replenishment cavity, an injection port communicating with the device cavity, and an outlet port, and the injection port is used to supply liquid externally. The device assembly includes a pump body housed in the device cavity, a first three-way valve assembly, and a second three-way valve assembly. The three ports of the first three-way valve assembly are respectively connected to the replenishment cavity, the inlet of the pump body, and the injection port. The three ports of the second three-way valve assembly are respectively connected to the liquid storage area, the outlet of the pump body, and the outlet port.

[0006] The aforementioned liquid distribution module controls the first three-way valve group to connect the injection port and the pump body, and to close the connection between the first three-way valve group and the replenishment chamber. It also controls the second three-way valve group to connect the pump body and the outlet port, and to close the connection between the second three-way valve group and the storage area. Coolant entering through the injection port is transported to the outlet port via the pump body and the second three-way valve group. Coolant output from the outlet port is then transported to the replenishment port through an external pipeline, entering the replenishment chamber, thus achieving liquid injection. Alternatively, the module controls the first three-way valve group to connect the replenishment chamber and the pump body, and to close the connection between the first three-way valve group and the injection port. The second three-way valve group connects the pump body and the storage area, and to close the connection between the second three-way valve group and the replenishment chamber. Coolant in the replenishment chamber is transported to the storage area via the pump body and the second three-way valve group, thus replenishing the storage area. This liquid distribution module integrates injection and replenishment functions, enabling connectivity between different chamber pipelines while reducing potential leaks in the liquid path layout. It facilitates centralized component maintenance, reduces troubleshooting time and difficulty, and improves maintenance efficiency. The liquid distribution module can be assembled as a whole into the application's liquid circuit, enabling modular installation and maintenance. Compared to traditional technologies that require separate storage tanks and replenishment tanks for the liquid circuit, this liquid distribution module simplifies the structure, reduces costs, and minimizes the space required for related structures and pipeline connections. This facilitates on-site assembly for customers with limited space, and makes subsequent maintenance more convenient. It also helps optimize the processing time for unit problems and improves customer satisfaction.

[0007] In one embodiment, the liquid distribution module includes an elastic membrane disposed within a receiving cavity to form an expansion zone isolated from the liquid storage area. The expansion zone is filled with inert gas, and the housing includes a gas supply port communicating with the expansion zone. The pressure within the expansion zone can be changed by adjusting the amount of expanding gas, and this pressure change alters the state of the elastic membrane. When the pressure in the liquid storage area is too high, the elastic membrane can be pushed convex towards the expansion zone to release and buffer the pressure. When the pressure in the liquid storage area is too low, inert gas can be introduced into the expansion zone to push the elastic membrane convex towards the liquid storage area, compressing the space in the liquid storage area and increasing the pressure thereon. The elastic membrane has a simpler structure, is easier to install and maintain, reduces the structural complexity of the device, and minimizes the space occupied by the system.

[0008] In one embodiment, at least a portion of the liquid storage zone is located below the expansion zone in a direction perpendicular to the ground. The cooling medium in the liquid storage zone can be contained within the liquid storage zone under the influence of gravity and is less likely to enter the expansion zone. If the elastic membrane between the expansion zone and the liquid storage zone does not contact the cooling medium in the liquid storage zone, the deformation of the elastic membrane only needs to overcome its own gravity, and the pressure buffering effect achieved through the elastic deformation of the elastic modulus is more easily realized.

[0009] In one embodiment, the device assembly includes a liquid level observation structure disposed outside the housing and connected to the expansion zone. If the cooling medium in the reservoir enters the expansion zone due to a ruptured elastic membrane, this liquid level observation structure can be used to observe the situation, allowing for timely replacement and maintenance.

[0010] In one embodiment, the device assembly further includes a liquid replenishment conduit, which is disposed outside the housing and connected between the liquid outlet port and the liquid replenishment port. When liquid needs to be injected into the liquid replenishment chamber, the cooling medium can be delivered from the liquid inlet port to the liquid replenishment port through the liquid replenishment conduit.

[0011] In one embodiment, the device assembly further includes a one-way valve connected between the liquid reservoir and the second three-way valve assembly. The one-way valve directs the coolant from the second three-way valve assembly to the liquid reservoir. The one-way valve restricts the flow of the coolant to the liquid reservoir via the second three-way valve assembly, ensuring the direction and pressure of liquid flow and preventing backflow that could affect the safety of the devices in the pipeline.

[0012] In one embodiment, the device group includes at least two liquid level observation structures. At least one liquid level observation structure is used to observe the liquid level in the storage area and at least one liquid level observation structure is used to observe the liquid level in the replenishment area, so as to monitor in a timely manner whether the cooling working fluid in the replenishment chamber and the storage area is sufficient, and to ensure the timeliness of replenishment and injection.

[0013] In one embodiment, at least two liquid level observation structures include a first transparent tube and a second transparent tube disposed outside the housing; the two ends of the first transparent tube are connected to a liquid replenishment chamber to form a communicating vessel structure, and the two ends of the second transparent tube are connected to a liquid storage area to form a communicating vessel structure. The cooling medium in the chamber can enter the transparent observation tube, and the liquid level of the cooling medium in the chamber can be monitored by observing the transparent observation tube.

[0014] In one embodiment, the bottom surface of the replenishment chamber is higher than the bottom surface of the storage area in a direction perpendicular to the ground. When the replenishment chamber supplies liquid to the storage area, it can utilize the gravitational potential energy of the liquid to improve the supply efficiency.

[0015] In one embodiment, the device assembly includes a safety valve housed within a device cavity, with its two ends connected to a liquid reservoir and a replenishment chamber, respectively. The safety valve is used to stabilize the system pressure and prevent accidents or damage caused by excessive system pressure.

[0016] In one embodiment, the device assembly includes a pressure relief valve housed within a device cavity, with its two ends connected to a receiving cavity and a replenishment cavity, respectively. The pressure relief valve is used to stabilize the system pressure and prevent excessive system pressure from causing accidents or damage. The liquid distribution module can be equipped with a separate safety valve, a separate pressure relief valve, or both a safety valve and a pressure relief valve simultaneously.

[0017] In one embodiment, at least one of the liquid outlet port, liquid replenishment port, and liquid injection port is provided with a quick-connect interface, which facilitates the connection of these ports with external pipelines and improves the convenience of disassembly, replacement, and offline maintenance of the liquid distribution module as a whole.

[0018] Secondly, this application provides a cooling capacity distribution unit, which includes a heat exchanger, a primary cooling circuit, and a secondary cooling circuit. The primary cooling circuit is used to connect to a refrigeration unit, and the secondary cooling circuit is used to dissipate heat from the load. The secondary cooling circuit includes any of the liquid distribution modules provided in the first aspect above, with a liquid storage area connected in series in the secondary cooling circuit. The cooling medium in the primary cooling circuit can exchange heat with the cooling medium in the secondary cooling circuit at the heat exchanger, thereby reducing the temperature of the cooling medium in the secondary circuit and improving the efficiency of heat dissipation from the load. The liquid distribution module integrates liquid injection and storage functions and can be modularly assembled in the secondary cooling circuit, making installation and maintenance more convenient. It can also reduce the size of the cooling capacity distribution unit and improve the ease of installation at the customer's site.

[0019] Thirdly, this application provides a liquid cooling system, which includes a refrigeration unit and a cooling capacity distribution unit as described in the second aspect above. The refrigeration unit is connected to the primary cooling circuit. The refrigeration unit provides a lower-temperature cooling medium to the primary cooling circuit of the cooling capacity distribution unit. The cooling medium in the secondary cooling circuit of the cooling capacity distribution unit can exchange heat with the even lower-temperature cooling medium in the primary cooling circuit through a heat exchanger, thereby reducing the temperature of the cooling medium in the secondary cooling circuit for liquid cooling heat dissipation of the load. Since the cooling capacity distribution unit occupies little space and is easy to install and maintain, it improves the convenience of installation and maintenance of the liquid cooling system and expands its application range.

[0020] Fourthly, this application provides a data center including a load and the liquid cooling system provided in the third aspect above, wherein the secondary cooling circuit of the liquid cooling system provides liquid cooling heat dissipation for the load. This liquid cooling system occupies less space, is easier and more convenient to assemble at the customer's site, and can improve the processing time for optimizing unit issues, thereby increasing customer satisfaction. Attached Figure Description

[0021] Figure 1 This is a data center cooling system architecture in the prior art;

[0022] Figure 2 A schematic diagram of a data center cooling system provided in an embodiment of this application;

[0023] Figure 3a This is a schematic diagram of the structure of a cooling capacity distribution unit provided in an embodiment of this application;

[0024] Figure 3b This is a schematic diagram of the structure of a cooling capacity distribution unit provided in an embodiment of this application;

[0025] Figure 4 This is a partial structural schematic diagram of a cooling capacity distribution unit provided in an embodiment of this application;

[0026] Figure 5a This is a schematic diagram of the liquid injection operation of a cooling capacity distribution unit provided in an embodiment of this application;

[0027] Figure 5b This is a schematic diagram of the liquid replenishment operation of a cold energy distribution unit provided in an embodiment of this application;

[0028] Figure 6a This is a partial structural schematic diagram of a cooling capacity distribution unit provided in an embodiment of this application;

[0029] Figure 6b This is a partial structural schematic diagram of a cooling capacity distribution unit provided in an embodiment of this application;

[0030] Figure 6c This is a partial structural schematic diagram of a cooling capacity distribution unit provided in an embodiment of this application;

[0031] Figure 6d This is a partial structural schematic diagram of a cooling capacity distribution unit provided in an embodiment of this application;

[0032] Figure 7 This is a schematic diagram of the structure of a cooling capacity distribution unit provided in an embodiment of this application;

[0033] Figure 8 This is a partial structural schematic diagram of a cooling capacity distribution unit provided in an embodiment of this application;

[0034] Figure 9 This is a partial structural schematic diagram of a cooling capacity distribution unit provided in an embodiment of this application.

[0035] Figure label:

[0036] 01-Heat exchanger; 02-Circulating water pump; 03-Expansion tank; 04-Replenishment tank; 05-Replenishment pump; 06-Storage tank; 07-Injection pump;

[0037] 100 - Cooling system; 200 - Server;

[0038] 10 - Cooling capacity distribution unit; 20 - Refrigeration unit;

[0039] 1- Primary cooling circuit; 11- Primary liquid delivery line; 111- Primary filter bypass line; 12- Primary return line; 2- Secondary cooling circuit; 21- Secondary liquid delivery line; 211- Secondary filter bypass line; 22- Secondary return line; 221- Sub-return line; 23- Liquid distribution module; 231- Housing; 232- Partition; 2331- Pump body; 2332- First three-way valve assembly; 2333- Second three-way valve assembly; 234- Makeup line; 235- Safety valve; 236- Pressure relief valve; 237- Liquid level observation structure; 238- Elastic membrane; 24- Expansion tank; 25- Secondary bypass line; 3- Heat exchanger; 31- First heat exchange channel; 32- Second heat exchange channel;

[0040] B - Circulating water pump; D1 - Liquid replenishment port; D2 - Liquid injection port; D3 - Liquid outlet port; D41 - First port; D42 - Second port; D5 - Drainage port; D6 - Bypass port; D7 - Overflow port; D8 - Gas replenishment port; F - Check valve; Q1 - Receiving cavity; Q11 - Liquid storage area; Q12 - Expansion area; Q2 - Liquid replenishment cavity; Q3 - Device cavity;

[0041] b1, b2, b3 - Vibration damping tubes; d1 - Primary side conductivity detection device; d2 - Secondary side conductivity detection device; g1 - Primary side filter; g2 - Secondary side filter; f11, f14, f21, f24 - Manual two-way valves; f12 - Primary side vent valve; f13 - Primary side water valve; f22 - One-way valve assembly; f23 - Secondary side vent valve; f25 - Bypass valve; p11 - Primary side inlet pressure detection device; j - Flow meter; p12 - Primary... Side filter outlet pressure detection device; p13 - primary side liquid outlet pressure detection device; p21 - secondary side liquid return pressure detection device; p22 - circulating water pump outlet pressure detection device; p23 - secondary side filter inlet pressure detection device; p24 - secondary side liquid supply pressure detection device; t11 - primary side liquid inlet temperature detection device; t12 - primary side liquid outlet temperature detection device; t21 - secondary side liquid return temperature detection device; t22 - secondary side liquid supply temperature detection device. Detailed Implementation

[0042] Cooling distribution systems are used to distribute coolant in small, medium, and large-scale communication data center server rooms. For example... Figure 1As shown, the existing cooling capacity distribution system includes primary side piping and secondary side piping, with heat exchange between them via a heat exchanger 01. The primary side piping connects to the cooling tower of the cooling system, while the secondary side piping extends into the computer room to dissipate heat from servers or other loads. The cooling capacity distribution system uses a circulating water pump 02 to directly supply cooling water to the load, absorbing heat from the load and then removing the heat from the load side via the heat exchanger 01 through the primary side piping. The cooling capacity distribution system also includes an expansion tank 03, which uses an air bladder to manage the pressure stability of the system piping. When the system pressure is too low, a replenishment tank 04 and a replenishment pump 05 can be used to replenish the liquid in the storage tank 06 in the piping. The replenishment tank 04 is replenished via an injection pump 07. In the cabinet layout of the cooling distribution system, the expansion tank 03, replenishment tank 04, storage tank 06, and related pumps and pipelines occupy the core component space of the cabinet. Since the cooling distribution system is generally installed at the customer's site, it makes the later installation and maintenance of the unit very difficult and affects the problem handling time (service-level agreement, SLA) for handling unit problems.

[0043] Based on this, embodiments of this application provide a liquid distribution module, a cooling capacity distribution unit, a liquid cooling system, and a data center. The liquid cooling distribution module integrates the structure and function of liquid replenishment and liquid storage, which can save space and improve installation and maintenance efficiency.

[0044] To make the objectives, technical solutions, and advantages of this application clearer, the application will now be described in further detail with reference to the accompanying drawings.

[0045] The terminology used in the following embodiments is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used in the specification and appended claims of this application, the singular expressions “a,” “an,” “the,” “the,” “the,” and “this” are intended to also include expressions such as “one or more” unless the context clearly indicates otherwise.

[0046] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0047] Figure 2 This is a schematic diagram of a data center cooling architecture provided as an embodiment of this application. Figure 2 As shown, the server 200 in the data center is equipped with a cooling system 100. The server 200 is installed in the computer room, and the cooling system 100 is used to dissipate heat from the server 200. The cooling system 100 includes a cooling capacity distribution unit 10 located in the computer room and a refrigeration unit 20 located outside the computer room. The refrigeration unit 20 can be a cooling tower or other device capable of providing a cooling medium. The cooling capacity distribution unit 10 and the refrigeration unit 20 are connected to form a primary circulation pipeline, and the cooling capacity distribution unit 10 and the server 200 are connected to form a secondary circulation pipeline. Heat exchange between the cooling medium in the primary circulation pipeline and the cooling medium in the secondary circulation pipeline can achieve heat dissipation from the server 200.

[0048] In one embodiment, a computer room air conditioner (CRAC) is also installed in the computer room to work with the cooling system 100 to provide good heat dissipation for the server 200 and improve the computing power of the data center.

[0049] In this embodiment, server 200 serves as the load for cooling system 100. The cooling system 100 provided in this application can also be used in other scenarios requiring liquid cooling, where the device to be cooled in the application scenario serves as the load for cooling system 100.

[0050] The architecture of the cooling capacity distribution unit 10 provided in this application embodiment can be referred to Figure 3a As shown. The cooling distribution unit 10 includes a heat exchanger 3, a primary cooling circuit 1, and a secondary cooling circuit 2. Based on Figure 2 The data center cooling architecture shown has a primary cooling loop 1 for connecting the cooling unit 20 and a secondary cooling loop 2 for dissipating heat from the server 200. Here, the primary cooling loop 1 can be considered as at least a portion of the primary circulation piping between the cooling capacity distribution unit 10 and the cooling unit 20, and the secondary cooling loop 2 can be considered as at least a portion of the secondary circulation piping between the cooling capacity distribution unit 10 and the server 200. Both the primary cooling loop 1 and the secondary cooling loop 2 are used to circulate cooling media, and the cooling media in the primary cooling loop 1 and the secondary cooling loop 2 can exchange heat at the heat exchanger 3 through the structure of the heat exchanger 3.

[0051] The primary cooling circuit 1 carries a first fluid with a lower temperature, which can be water. The secondary cooling circuit 2 carries a second fluid with a higher temperature, which can also be water. The first fluid is the cooling medium output from the cooling unit 20, which has a lower temperature. The second fluid is the cooling medium needed to cool the server 200; after absorbing heat from the server 200, the second fluid has a higher temperature, while the first fluid's temperature is lower than the second fluid's temperature. During operation, the second fluid circulates to absorb heat from the load side, and the first fluid cools the second fluid.

[0052] In one embodiment, the heat exchanger 3 includes a first heat exchange channel 31 and a second heat exchange channel 32 that are isolated from each other. The first heat exchange channel 31 is used for the flow of cooling medium in the primary cooling circuit 1, and the second heat exchange channel 32 is used for the flow of cooling medium in the secondary cooling circuit 2. The cooling medium in the primary cooling circuit 1 can exchange heat with the cooling medium in the secondary cooling circuit 2. The cooling medium in the secondary cooling circuit 2 can exchange heat with the air in the computer room through the air-cooled pipes to cool the interior of the computer room, thereby dissipating heat from the server 200.

[0053] To ensure sufficient heat exchange between the first fluid and the second fluid, the flow direction of the first fluid in the first heat exchange channel 31 is opposite to that of the second fluid in the second heat exchange channel 32. This counter-current configuration allows for adequate heat exchange between the first and second fluids.

[0054] Please continue to refer to Figure 3a As shown in the embodiment of this application, the primary cooling circuit 1 of the cooling capacity distribution unit 10 includes a primary liquid supply pipe 11 and a primary liquid return pipe 12. The primary liquid supply pipe 11 is connected to the outlet of the cooling unit 20 and the inlet of the first heat exchange channel 31 of the heat exchanger 3. The primary liquid return pipe 12 is connected to the outlet of the first heat exchange channel 31 of the heat exchanger 3 and the inlet of the cooling unit 20. The secondary cooling circuit 2 includes a secondary liquid supply pipe 21 and a secondary liquid return pipe 22. The secondary liquid supply pipe 21 is connected to the outlet of the second heat exchange channel 32 of the heat exchanger 3 and the inlet of the load. The secondary liquid return pipe 22 is connected to the outlet of the load and the inlet of the second heat exchange channel 32 of the heat exchanger 3.

[0055] The cooling capacity distribution unit 10 also includes a liquid distribution module 23, which is exemplarily configured on the secondary side return liquid pipeline 22 for distributing the cooling working fluid in the secondary side cooling circuit 2.

[0056] In some embodiments, such as Figure 3aAs shown, the liquid distribution module 23 integrates liquid storage and replenishment functions, used for temporarily storing and replenishing the cooling medium in the secondary cooling circuit 2. To ensure the pressure of the cooling medium flow in the secondary cooling circuit 2, the cooling capacity distribution unit 10 is also equipped with an expansion tank 24, which is connected to the liquid distribution module 23.

[0057] Figure 3b The present application provides an architecture for a cooling capacity distribution unit 10, wherein different functional devices are configured at different positions on both sides of the cooling capacity distribution unit 10 to cooperate in realizing the control of the cooling capacity distribution unit 10.

[0058] like Figure 3bAs shown, in the primary side cooling circuit 1, the primary side liquid supply pipeline 11, along the direction of supplying the first fluid from the refrigeration unit 20 to the heat exchanger 3, is sequentially equipped with a manual two-way valve f11, a primary side inlet liquid temperature detection device t11, a primary side inlet liquid pressure detection device p11, a primary side filter g1, a primary side filter outlet pressure detection device p12, and a primary side exhaust valve f12. The inlet and outlet of the primary side filter g1 are respectively equipped with inlet and outlet control valves. A manual valve is installed between the inlet and control valve of the primary side filter g1, and a manual valve is also installed between the outlet and control valve of the primary side filter g1. The primary side liquid supply pipeline 11 is also equipped with a primary side filter bypass pipeline 111 connected in parallel to the inlet and outlet of the primary side filter g1. In the primary-side return liquid line 12 of the primary-side cooling circuit 1, along the direction of the first fluid returning from the heat exchanger 3 to the refrigeration unit 20, a primary-side water valve f13, a primary-side outlet pressure detection device p13, a primary-side outlet temperature detection device t12, and a manual two-way valve f14 are installed on the primary-side return liquid line 12. A primary-side conductivity detection device d1 is installed between the primary-side supply liquid line 11 and the primary-side return liquid line 12. The primary-side filter g1 can filter impurities in the first fluid, reducing impurities entering the heat exchanger 3 and preventing impurities from reducing the heat exchange efficiency of the heat exchanger 3. The primary-side filter bypass line 111 can bypass the primary-side filter g1 when filtration is not required, improving the flow efficiency of the primary-side cooling circuit 1. The primary-side inlet liquid temperature detection device t11 and the primary-side outlet liquid temperature detection device t12 can monitor the temperature of the first fluid entering and leaving the heat exchanger 3 to ensure that the first fluid between the primary-side cooling circuit 1 and the heat exchanger 3 meets the heat exchange temperature requirements. The primary side inlet pressure detection device p11, the primary side filter outlet pressure detection device p12, and the primary side outlet pressure detection device p13 are used to monitor the liquid pressure at different locations in the primary side cooling circuit 1 to ensure stable operation of the liquid circuit. The primary side vent valve f12 can release accumulated gas in the primary side cooling circuit 1 as needed, maintaining liquid cooling pressure balance and improving operating efficiency. The manual two-way valve f11, the primary side water valve f13, the manual two-way valve f14, the control valves on both sides of the primary side filter g1, and the control valve on the primary side filter bypass pipe 111 can adjust the liquid flow state in the primary side circuit 1 as needed. The primary side conductivity detection device d1 can monitor the conductivity of the first fluid in the primary side cooling circuit 1 to determine whether the water quality of the first fluid meets the cooling requirements.

[0059] like Figure 3bAs shown, in the secondary side cooling circuit 2, the liquid distribution module 23 and the heat exchanger 3 are connected by two parallel sub-return pipes 221 in the secondary side return liquid pipeline 22. One sub-return pipe 221 is in use and the other is on standby, ensuring reliable pipeline operation. Along the direction of the load supplying the second fluid to the heat exchanger 3, a manual two-way valve f21, a secondary side return liquid pressure detection device p21, and a secondary side return liquid temperature detection device t21 are sequentially installed on the secondary side return liquid pipeline 22 between the load and the liquid distribution module 23. Along the flow direction of the second fluid within the sub-return liquid pipeline 221, each sub-return liquid pipeline 221 is sequentially equipped with a shock absorber b1, a circulating water pump B, a one-way valve group f22, and a shock absorber b2. A control valve is installed between the circulating water pump B and the shock absorber b1, and a manual valve is installed between the circulating water pump B and the control valve. A control valve is installed between the one-way valve f22 and the shock absorber b2. A circulating water pump outlet pressure detection device p22 is installed between the outlet of the two sub-return pipes 221 and the heat exchanger 3. In the secondary side cooling circuit 2, along the direction of the second fluid delivery from the heat exchanger 3 to the load, the secondary side supply pipe 21 is sequentially equipped with a secondary side exhaust valve f23, a secondary side filter inlet pressure detection device p23, a secondary side filter g2, a flow meter j, a secondary side outlet temperature detection device t22, a secondary side supply pressure detection device p24, and a manual two-way valve f24. The inlet and outlet of the secondary side filter g2 are respectively equipped with inlet and outlet control valves. A manual valve is installed between the inlet and control valve of the secondary side filter g2, and a manual valve is also installed between the outlet and control valve of the secondary side filter g2. The secondary side supply pipe 21 is also equipped with a secondary side filter bypass pipe 211 connected in parallel to the inlet and outlet of the secondary side filter g2. The secondary cooling circuit 2 also includes a secondary bypass pipe 25. One end of the secondary bypass pipe 25 is connected to the secondary liquid supply pipe 21 between the secondary exhaust valve f23 and the secondary filter inlet pressure detection device p23, and the other end is connected to the liquid distribution module 23. The secondary bypass pipe 25 is equipped with a shock absorber b3 and a bypass valve f25. A secondary conductivity detection device d2 is installed between the secondary liquid supply pipe 21 and the liquid distribution module 23. The secondary filter g2 can filter impurities in the second fluid, reducing impurities entering the load and preventing impurities from affecting load operation. The secondary filter bypass pipe 211 can bypass the secondary filter g2 when filtration is not required, improving the flow efficiency of the secondary cooling circuit 2. The secondary return liquid temperature detection device t21 and the secondary supply liquid temperature detection device t22 can monitor the temperature of the second fluid entering and leaving the load, ensuring that the second fluid between the secondary cooling circuit 2 and the heat exchanger 3 meets the heat exchange temperature requirements. The secondary side inlet pressure detection device p12, the circulating water pump outlet pressure detection device p22, the secondary side filter outlet pressure detection device p23, and the secondary side outlet pressure detection device p24 are used to monitor the liquid pressure at different locations in the secondary side cooling circuit 2 to ensure the stable operation of the liquid circuit.The secondary-side exhaust valve f23 can release the gas accumulated in the secondary-side cooling circuit 2 as needed, maintaining liquid cooling pressure balance and improving operating efficiency. The manual two-way valve f21, one-way valve group f22, manual two-way valve f24, control valves on both sides of the secondary-side filter g2, control valve on the secondary-side filter bypass pipe 211, and secondary-side bypass valve f25 can adjust the liquid flow state in the secondary-side circuit 2 as needed. The secondary-side conductivity detection device d2 can monitor the conductivity of the second fluid in the secondary-side cooling circuit 2 to determine whether the water quality of the second fluid meets the cooling requirements.

[0060] It should be understood that Figure 3b The architecture and related components of the cooling capacity distribution unit 10 shown are merely a structural example. Different pipe connection methods, component types, and placement positions can be adjusted as needed, and will not be illustrated here. The cooling capacity distribution unit 10 provided in this application embodiment can also have auxiliary pipes and components added or removed in practical applications to meet liquid flow requirements.

[0061] Figure 4 A partially simplified architecture of the secondary cooling circuit 2 of a cooling capacity distribution unit 10 is shown. This partial architecture includes a liquid distribution module 23, which integrates liquid replenishment and liquid storage functions in the embodiments of this application.

[0062] like Figure 4 As shown, the liquid distribution module 23 includes a housing 231 and a device assembly. The internal space of the housing 231 includes a separately separated receiving cavity Q1, a replenishment cavity Q2, and a device cavity Q3. At least a portion of the receiving cavity Q1 constitutes a liquid storage area Q11 for storing liquid, which is used to connect to an external liquid path. This external liquid path can be the liquid path formed by the secondary return liquid line 22. The replenishment cavity Q2 receives externally replenished cooling medium, which can be delivered to the liquid storage area Q11 as needed. The device cavity Q3 provides mounting space for at least a portion of the devices in the device assembly.

[0063] In one embodiment, the housing 231 includes a replenishment port D1 communicating with the replenishment chamber Q2, an injection port D2 communicating with the device cavity Q3, and an outlet port D3. The injection port D2 is used for external liquid supply. The device assembly includes a pump body 2331 housed within the device cavity Q3, a first three-way valve assembly 2332, and a second three-way valve assembly 2333. The three ports of the first three-way valve assembly 2332 are respectively connected to the replenishment chamber Q2, the inlet of the pump body 2331, and the injection port D2. The three ports of the second three-way valve assembly 2333 are respectively connected to the storage area Q11, the outlet of the pump body 2331, and the outlet port D3. The first three-way valve assembly 2332 can switch the connection relationship of the three ports, thereby changing the liquid flow direction between the storage chamber Q2, the pump body 2331, and the injection port D2. The second three-way valve assembly 2333 can switch the connection relationship of the three ports, thereby changing the liquid flow direction between the storage area Q11, the pump body 2331, and the outlet port D3. With the cooperation of the first three-way valve group 2332 and the second three-way valve group 2333, the functions of injecting external liquid into the replenishment chamber Q2 and allowing the liquid in the replenishment chamber Q2 to flow into the storage area Q11 can be realized.

[0064] The three ports of the first three-way valve group 2332 are respectively connected to the replenishment chamber Q2, the injection port D2, and the pump body 2331 through pipelines. The three ports of the second three-way valve 2333 are respectively connected to the storage area Q11, the pump body 2331, and the outlet port D3 through pipelines. This part of the pipeline is also housed in the device cavity Q3.

[0065] The liquid distribution module 23 provided in this application embodiment integrates functions. The liquid storage area Q11 of the receiving cavity Q1 can be used for liquid storage, and the liquid replenishment cavity Q2 can be used for liquid replenishment. The structures for liquid replenishment and liquid storage are integrated within the housing 231, and at least a portion of the device assembly is housed within the housing 231. This allows for connectivity between different chamber pipelines while reducing leak points in the liquid circuit layout, facilitating centralized device maintenance, reducing troubleshooting time and difficulty, and improving maintenance efficiency. The liquid distribution module 23 can be assembled as a whole into the application's liquid circuit, enabling modular installation and maintenance. Compared to traditional technologies that require separate liquid storage and replenishment tanks for the secondary side circuit of the cooling capacity distribution unit 10, this liquid distribution module 23 simplifies the structure, reduces costs, and minimizes the space required for connecting related structures and pipelines. This facilitates on-site assembly for customers with limited space, and makes subsequent maintenance more convenient. It also helps optimize the processing time for unit problems and improves customer satisfaction.

[0066] In one embodiment, such as Figure 4 As shown, the liquid distribution module 23 includes multiple partitions 232, which can divide the internal space of the housing 231 into a receiving cavity Q1, a replenishment cavity Q2, and a device cavity Q3.

[0067] In one embodiment, such as Figure 4 As shown, in the secondary cooling circuit 2 of the cold energy distribution unit 10, the expansion tank 24 can be connected to the liquid replenishment chamber Q2 and the liquid storage area Q11 respectively, and the liquid in the expansion tank 24 can be discharged into at least one of the liquid replenishment chamber Q2 and the liquid storage area Q11.

[0068] In one embodiment, such as Figure 4 As shown, the housing 231 includes a first port D41, a second port D42, a drain port D5, and a bypass port D6, all connected to the liquid storage area Q11. The liquid storage area Q11 is connected to the secondary side return liquid pipeline 22 via the first port D41 and the second port D42. Based on the two sub-return liquid pipelines 221, two second ports D42 are also provided, each connected to one of the two sub-return liquid pipelines 221. The drain port D5 is used to drain excess liquid from the liquid storage area Q11 when necessary, and the bypass port D6 is connected to the secondary side bypass pipeline 25. The drain port D5 is generally connected to the bottom of the liquid storage area Q11 facing the ground, facilitating the outflow of liquid from the liquid storage area Q11 under gravity.

[0069] In one embodiment, such as Figure 4 As shown, the housing 231 includes an overflow port D7 that communicates with the replenishment chamber Q2. When there is excess liquid in the replenishment chamber Q2, it can overflow from the overflow port D7. The overflow port D7 is generally connected to the top of the replenishment chamber Q2 away from the ground. The overflow port D7 can be connected to a pipe to discharge the liquid, ensuring that the liquid in the replenishment chamber Q2 overflows only in case of excess.

[0070] In one embodiment, to facilitate quick connection of the liquid distribution module 23 to the pipeline, at least one of the liquid outlet port D3, liquid replenishment port D1, and liquid injection port D2 of the housing 231 is provided with a quick-connect interface, which facilitates the connection of these ports to external pipelines. As a structural example, the connection between the quick-connect interface and the external pipeline can be achieved by a threaded connection, which facilitates the overall disassembly, replacement, and offline maintenance of the liquid distribution module 23.

[0071] The first port D41 and the secondary side return pipe 22, the second port D42 and the sub-return pipe 221, and the bypass port D6 and the secondary side bypass pipe 25 can also be connected by quick-connect interfaces.

[0072] Next, combined Figure 5a and Figure 5b As shown, the working principle of the liquid distribution module 23 in the cooling capacity distribution unit 10 provided in this application embodiment is analyzed. The arrows, represented by dashed lines, indicate the flow direction of the cooling medium distributed by the liquid distribution module 23.

[0073] like Figure 5aAs shown, during the liquid injection operation into the liquid distribution module 23, an external cooling medium needs to be supplied to the replenishment chamber Q2. The injection port D2 is connected to an external cold source. An external pipeline is installed outside the housing 231 to connect the outlet port D3 and the replenishment port D1. The first three-way valve group 2332 is controlled to connect the injection port D2 and the pump body 2331, and to close the connection between the first three-way valve group 2332 and the replenishment chamber Q2. The second three-way valve group 2333 is controlled to connect the pump body 2331 and the outlet port D3, and to close the connection between the second three-way valve group 2333 and the storage area Q11. The cooling medium entering through the injection port D2 is transported to the outlet port D3 via the pump body 2331 and the second three-way valve group 2333. Then, the cooling medium output from the outlet port D3 is transported to the replenishment port D1 through the external pipeline and enters the replenishment chamber Q2, thus realizing the liquid injection.

[0074] like Figure 5b As shown, when replenishing the liquid in the liquid distribution module 23, the cooling medium in the replenishment chamber Q2 needs to be transported to the storage area Q11. The first three-way valve group 2332 is controlled to connect the replenishment chamber Q2 and the pump body 2331, and to close the connection between the first three-way valve group 2332 and the injection port D2. The second three-way valve group 2333 is controlled to connect the pump body 2331 and the storage area Q11, and to close the connection between the second three-way valve group 2333 and the replenishment chamber Q2. The cooling medium in the replenishment chamber Q2 is then transported to the storage area Q11 via the pump body 2331 and the second three-way valve group 2333, thus replenishing the storage area Q11.

[0075] It should be understood that the conduction state and port function of the aforementioned valve assembly can be adjusted as needed to meet different flow requirements of the liquid circuit. In some emergency situations, cooling medium can also be directly injected into the replenishment chamber Q2 or the storage area Q11. For example, controlling the first three-way valve assembly 2332 to connect the injection port D2 and the replenishment chamber Q2 allows cooling medium to be supplied to the replenishment chamber Q2 through the injection port D2. As another example, controlling the second three-way valve assembly 2333 to connect the outlet port D3 and the storage area Q11 changes the function of the outlet port D3, allowing cooling medium to be injected directly into the storage area Q11 through the outlet port D3. For example, the three ports of the first three-way valve group 2332 are connected to the injection port D2, the replenishment chamber Q2, and the pump body 2331, respectively. The three ports of the second three-way valve group 2333 are connected to the pump body 2331, the outlet port D3, and the storage area Q11, respectively. When the injection port D2 is connected to an external cold source and the outlet port D3 is connected to the replenishment port D1, the cooling medium can be injected into the replenishment chamber Q2 through the replenishment port D1 and the first three-way valve group 2332, respectively. The second three-way valve group 2333 can supply liquid to the storage area Q11 and the outlet port D3 at the same time.

[0076] The cooling capacity distribution unit 10 provided in this application integrates the liquid replenishment device and the liquid storage device into the housing 231 through the liquid distribution module 23. The liquid replenishment chamber Q2 and the liquid storage area Q11 can be injected and replenished under different working conditions through the cooperation of valve group and pipeline. Under the premise of realizing the normal liquid injection and replenishment needs of the secondary cooling circuit 2, modular maintenance and installation can be realized, reducing hardware costs and space, and also facilitating the installation and maintenance of the system.

[0077] In some embodiments, in conjunction with the above Figure 4 as well as Figure 5a , Figure 5b The liquid distribution module 23 shown has a bottom surface of the replenishment chamber Q2 that is higher than the bottom surface of the storage area Q11, so that part of the liquid in the replenishment chamber Q2 is higher than part of the liquid in the storage area Q11. When the replenishment chamber Q2 supplies liquid to the storage area Q11, it can utilize the gravitational potential energy of the liquid to improve the liquid supply efficiency.

[0078] In one specific structure, the port of the replenishment chamber Q2 used to connect to the first three-way valve group 2332 is higher than the port of the storage area Q11 used to connect to the second three-way valve group 2333, and the liquid has greater gravitational potential energy at the port of the replenishment chamber Q2 used to connect to the first three-way valve group 2332.

[0079] Combination Figure 5a In the liquid injection scenario shown, the pipe connecting the outlet port D3 and the replenishment port D1 can be an integral part of the liquid distribution module 23. That is, the liquid distribution module 23 has its own built-in pipe connecting the outlet port D3 and the replenishment port D1, and this pipe is always connected between the outlet port D3 and the replenishment port D1 under any operating condition. Alternatively, the pipe connecting the outlet port D3 and the replenishment port D1 can be an external pipe, connected only when the liquid distribution module 23 needs liquid injection. Under other operating conditions, this external pipe can be removed, further improving the structural simplicity of the liquid distribution module 23.

[0080] In one embodiment, such as Figure 6a The liquid distribution module 23 shown includes a replenishment pipe 234, which is disposed outside the housing 231 and connected between the outlet port D3 and the replenishment port D1. Figure 5a During the liquid injection operation shown, the cooling medium can be transported from the liquid injection port D3 to the liquid replenishment port D1 through the liquid replenishment pipe 234.

[0081] In one embodiment, the replenishment of the cooling medium from the replenishment chamber Q2 to the storage area Q11 is unidirectional; that is, the cooling medium can only flow from the replenishment chamber Q2 to the storage area Q11, and cannot flow from the storage area Q11 to the replenishment chamber Q2. This ensures the direction and pressure of liquid flow and prevents backflow from affecting the safety of devices in the pipeline. Figure 6b The liquid distribution module 23 shown includes a one-way valve F connected between the liquid storage area Q11 and the second three-way valve assembly 2333. The one-way valve F restricts the flow direction of the cooling medium flowing through the pipe between the second three-way valve assembly 2333 and the liquid storage area Q11 to flow from the second three-way valve assembly 2333 to the liquid storage area Q11.

[0082] In one embodiment, the liquid distribution module 23 is equipped with a safety valve 235 for stabilizing the system pressure and preventing accidents or damage caused by excessive system pressure. Figure 6c As shown, a safety valve 235 is installed in the device cavity Q3, and the two ends of the safety valve 235 are connected to the liquid replenishment cavity Q2 and the liquid storage area Q11, respectively.

[0083] In one embodiment, the liquid distribution module 23 is equipped with a pressure relief valve 236, which is also used to stabilize the system pressure and prevent accidents or damage caused by excessive system pressure. Figure 6c As shown, a pressure relief valve 236 is installed in the device cavity Q3, and its two ends are connected to the liquid replenishment cavity Q2 and the liquid storage area Q11, respectively. To improve ease of operation, the pressure relief valve 236 can be an electrically operated pressure relief valve.

[0084] Combination Figure 6c As shown, the liquid distribution module 23 can be equipped with a safety valve 235 alone, a pressure relief valve 236 alone, or both a safety valve 235 and a pressure relief valve 236 simultaneously. The safety valve 235 has a relatively fast pressure relief action, featuring a sudden full opening. The electric pressure relief valve 236 opens proportionally as the pressure exceeds the opening force, with a certain opening time.

[0085] In one embodiment, both the replenishment chamber Q2 and the storage area Q11 of the liquid distribution module 23 contain cooling medium. The replenishment chamber Q2 needs to store sufficient liquid to replenish the cooling medium in the storage area Q11 when needed, and the storage area Q11 needs to store sufficient liquid to replenish the cooling medium in the secondary return line 22 when needed. To monitor in a timely manner whether the cooling medium in the replenishment chamber Q2 and the storage area Q11 is sufficient, such as... Figure 6d As shown, the device group includes at least two liquid level observation structures 237, at least one liquid level observation structure 237 for observing the liquid level in the liquid storage area Q11, and at least one liquid level observation structure 237 for observing the liquid level in the liquid replenishment chamber Q2.

[0086] The liquid level observation structure 237 can be of different types of liquid level gauges, such as pressure level gauges, radar level gauges, etc., or it can be a transparent window structure that can be visually observed. As a structural example, in the liquid distribution module 23 provided in this application embodiment, the liquid level observation structure 237 is a transparent observation tube. The two ends of the transparent observation tube are respectively connected to the chamber to be observed, and the ports connected at the two ends are at different heights from the ground. In application, the transparent observation tube and the chamber are connected to form a communicating vessel, and the cooling medium in the chamber can enter the transparent observation tube. The liquid level of the cooling medium in the chamber can be monitored by observing the transparent observation tube.

[0087] As a structural example, the above-mentioned at least two liquid level observation structures 237 include a first transparent tube and a second transparent tube disposed outside the housing 231, wherein the two ends of the first transparent tube are connected to the liquid replenishment chamber Q2 to form a communicating vessel structure, and the two ends of the second transparent tube are connected to the liquid storage area Q11 to form a communicating vessel structure.

[0088] This application embodiment also provides another cooling capacity distribution unit 10, such as Figure 7 As shown, the liquid distribution module 23 integrates liquid storage, replenishment, and pressure regulation functions, used for temporarily storing, replenishing, and balancing the pressure of the cooling medium in the secondary cooling circuit 2. Figure 3b Compared to the cold energy distribution unit 10 shown, this architecture eliminates the liquid storage tank 24 and related components, further reducing the number of components and the space occupied by the system.

[0089] Figure 8 It shows Figure 7 The secondary cooling circuit 2 has a partial architecture, which includes a liquid distribution module 23. The liquid distribution module 23 provided in this application embodiment integrates liquid replenishment, liquid storage and pressure balancing functions.

[0090] like Figure 8 As shown, the liquid distribution module 23 includes a housing 231 and a device assembly. The internal space of the housing 231 includes a separately isolated receiving cavity Q1, a replenishment cavity Q2, and a device cavity Q3. The liquid distribution module 23 includes an elastic membrane 238, which is disposed within the receiving cavity Q1 to form an expansion zone Q12 isolated from the liquid storage zone Q11. Specifically, the two sides of the elastic membrane 238 are the liquid storage zone Q11 and the expansion zone Q12, respectively. The liquid storage zone Q11 is used to connect to the secondary side return liquid pipeline 22, and the expansion zone Q12 is used to fill with inert gas. The elastic membrane 238 has good elasticity, and its deformation can also change the spatial size of the liquid storage zone Q11 and the expansion zone Q12.

[0091] The housing 231 includes a gas supply port D8 that communicates with the expansion zone Q12. Inert gas can be supplied to the expansion zone Q12 through the gas supply port D8 when needed. Of course, the pressure of the inert gas in the expansion zone Q12 can also be detected through the gas supply port D8.

[0092] In practical operation, the pressure within expansion zone Q12 can be altered by controlling the amount of expanding gas. This pressure change in expansion zone Q12 alters the state of the elastic membrane 238. When the pressure in storage zone Q11 is too high, the elastic membrane 238 can be pushed convex towards expansion zone Q12 to release and buffer the pressure. When the pressure in storage zone Q11 is too low, inert gas can be injected into expansion zone Q12 to push the elastic membrane 238 convex towards storage zone Q11, compressing the space in storage zone Q11 and increasing the pressure in storage zone Q11.

[0093] Compared to traditional pressure buffer devices in the form of liquid storage tanks 24, the elastic diaphragm 238 can achieve the function of regulating the liquid circuit pressure within the liquid distribution module 23. The elastic diaphragm 238 has a simpler structure, is easier to install and maintain, and not only reduces the structure of the components but also reduces the space occupied by the system.

[0094] The elastic membrane 238 may be at risk of rupture during repeated elastic deformation. If the elastic membrane 238 ruptures, the space between the expansion region Q12 and the liquid storage region Q11 becomes connected, impairing the liquid buffering function. In some embodiments, rupture of the elastic membrane 238 may cause the cooling medium in the liquid storage region Q11 to enter the expansion region Q12. To monitor the state of the elastic membrane 238 in real time, the device assembly includes a liquid observation structure 237 for observing the expansion region Q12. The liquid observation structure 237 is disposed outside the housing 231 and communicates with the expansion region Q12.

[0095] The liquid level observation structure 237 can also be different types of liquid level gauges, such as pressure level gauges, radar level gauges, etc., or it can be a structure such as a transparent window that can be visually observed. As a structural example, the liquid level observation structure 237 is a transparent observation tube, with its two ends connected to the expansion zone Q12, and the ports at the two ends being at different heights from the ground. In application, the transparent observation tube and the expansion zone Q12 are connected to form a communicating vessel, allowing the cooling medium in the expansion zone Q12 to enter the transparent observation tube. If the cooling medium in the storage zone Q11 enters the expansion zone Q12 due to damage to the elastic membrane 238, it can be observed through the liquid level observation structure 237, allowing for timely replacement and maintenance.

[0096] If the elastic membrane 238 is damaged, causing the cooling medium in the storage area Q11 to enter the expansion area Q12, the first port D41 and the second port D42 on the housing 231 can be closed, and then the drain port D5 can be opened to drain the cooling medium. Then the elastic membrane 238 in the receiving cavity Q1 can be replaced or repaired.

[0097] In one embodiment, at least a portion of the liquid storage region Q11 is located below the expansion region Q12 in a direction perpendicular to the ground. The cooling medium in the liquid storage region Q11 can be contained within the liquid storage region Q11 under the influence of gravity and is less likely to enter the expansion region Q12. If the elastic membrane 238 between the expansion region Q12 and the liquid storage region Q11 does not contact the cooling medium in the liquid storage region Q11, the deformation of the elastic membrane 238 only needs to overcome its own gravity. The pressure buffering effect achieved by the elastic deformation of the elastic membrane 238 is more easily realized.

[0098] exist Figure 8 and Figure 9 In the liquid distribution module 23 shown, the expansion zone Q12 and the liquid storage zone Q11 are arranged adjacent to each other in a direction perpendicular to the ground. The liquid storage zone Q11 is located below the expansion zone Q12. Even if the elastic membrane 238 is damaged, the cooling medium in the liquid storage zone Q11 will not easily enter the expansion zone Q12 due to gravity.

[0099] In summary, the liquid distribution module 23 provided in this application embodiment is applied as an integral structure in the secondary cooling circuit 2 of the cold energy distribution unit 10, enabling modular installation and maintenance. The liquid distribution module 23 integrates liquid storage and replenishment functions through different chambers within the housing 231, replacing the structures used for liquid storage and replenishment. This reduces system components and piping, saving costs and space while minimizing leaks, simplifying installation and maintenance, and enabling rapid installation and troubleshooting at the customer's site. In some embodiments, the pressure equalization function is integrated into the liquid distribution module 23 via an elastic membrane 238, reducing the need for an expansion tank, further reducing the number of system components and simplifying the architecture, thereby improving installation and maintenance efficiency.

[0100] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A liquid dispensing module, characterized in that, The liquid dispensing module includes a housing and a component assembly; The internal space of the housing includes a separately isolated receiving cavity, a liquid replenishment cavity, and a device cavity. At least a portion of the receiving cavity constitutes a liquid storage area for storing liquid, and the liquid storage area is used to connect to an external liquid circuit. The housing includes a replenishment port communicating with the replenishment chamber, an injection port communicating with the device cavity, and an outlet port, wherein the injection port is used for external liquid supply; The device assembly includes a pump body, a first three-way valve assembly, and a second three-way valve assembly housed within the device cavity. The three ports of the first three-way valve assembly are respectively connected to the replenishment chamber, the inlet of the pump body, and the injection port. The three ports of the second three-way valve assembly are respectively connected to the storage area, the outlet of the pump body, and the outlet port.

2. The liquid dispensing module as described in claim 1, characterized in that, The liquid distribution module includes an elastic membrane disposed within the receiving cavity to form an expansion zone isolated from the liquid storage area within the receiving cavity. The expansion zone is used to fill with inert gas, and the housing includes a gas replenishment port communicating with the expansion zone.

3. The liquid dispensing module as described in claim 2, characterized in that, At least a portion of the liquid storage area is located below the expansion area in a direction perpendicular to the ground.

4. The liquid dispensing module as described in claim 3, characterized in that, The device group includes a liquid observation structure disposed outside the housing and connected to the expansion region.

5. The liquid dispensing module as described in any one of claims 1-4, characterized in that, The device assembly also includes a liquid replenishment pipe, which is disposed outside the housing and connected between the liquid outlet port and the liquid replenishment port.

6. The liquid dispensing module according to any one of claims 1-5, characterized in that, The device group also includes a one-way valve, which is connected between the liquid storage area and the second three-way valve group.

7. The liquid dispensing module as described in any one of claims 1-6, characterized in that, The device group includes at least two liquid level observation structures, at least one of which is used to observe the liquid level in the storage area and at least one of which is used to observe the liquid level in the replenishment area.

8. The liquid dispensing module as described in claim 7, characterized in that, The at least two liquid level observation structures include a first transparent tube and a second transparent tube disposed outside the shell; The two ends of the first transparent tube are connected to the liquid replenishment chamber to form a communicating vessel structure, and the two ends of the second transparent tube are connected to the liquid storage area to form a communicating vessel structure.

9. The liquid dispensing module as described in any one of claims 1-8, characterized in that, The bottom surface of the replenishment chamber is higher than the bottom surface of the storage area in a direction perpendicular to the ground.

10. The liquid dispensing module according to any one of claims 1-9, characterized in that, The device assembly includes a safety valve housed within the device cavity, with its two ends connected to the liquid storage area and the liquid replenishment chamber, respectively.

11. The liquid dispensing module according to any one of claims 1-10, characterized in that, The device assembly includes a pressure relief valve housed within the device cavity, with its two ends connected to the receiving cavity and the replenishing cavity, respectively.

12. The liquid dispensing module according to any one of claims 1-11, characterized in that, At least one of the liquid outlet port, the liquid replenishment port, and the liquid injection port is provided with a quick-connect interface.

13. A cooling capacity distribution unit, characterized in that, The cooling distribution unit includes a heat exchanger, a primary cooling circuit, and a secondary cooling circuit. The primary cooling circuit is used to connect to the cooling system, and the secondary cooling circuit is used to dissipate heat from the server. The secondary circuit includes a liquid distribution module as described in any one of claims 1-12, and the liquid storage area is connected in series in the secondary cooling circuit.

14. A liquid cooling system, characterized in that, It includes a refrigeration unit and a cooling capacity distribution unit as described in claim 13, wherein the refrigeration unit is connected to the primary cooling circuit.

15. A data center, characterized in that, Includes a load and a liquid cooling system as described in claim 14, wherein the secondary cooling circuit is used to provide liquid cooling heat dissipation for the load.

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