Cooling system, control method, device, equipment and storage medium of cooling system

Abstract

The present application discloses a cooling system, a control method, a device, an equipment and a storage medium for the cooling system, and relates to the field of computer technology. The system includes multiple cold sources, multiple cabinets, multiple wind walls, and N fluid distribution units CDU, where N is a positive integer greater than 1; each of the multiple cold sources is respectively connected to at least one of the multiple wind walls, and different cold sources are connected to different wind walls, and the cold source is used to provide air cooling for the cabinet through the wind wall; each of the multiple cold sources is respectively connected to at least one CDU of the N CDUs, and different cold sources are connected to the same or different CDUs, and the cold source is used to provide liquid cooling for the cabinet through the CDU; each of the N CDUs is respectively connected to multiple cabinets through supply and return pipelines, and the supply and return pipelines are pipelines used to realize liquid supply and return to the cabinet. The cooling stability of the above system is good.

Description

Technical Field

[0001] The present application relates to the field of computer technology, and in particular to a cooling system, a control method, a device, a equipment and a storage medium for the cooling system. Background Art

[0002] In order to cool the cabinet, two methods are usually used: air cooling and liquid cooling. Air cooling is achieved by providing cold air to the cabinet through an air wall (for example, the air wall is an air conditioner, and the air conditioner is used to blow cold air to the cabinet). Liquid cooling is achieved by delivering cooling water to the cabinet through a CDU (Coolant Distribution Unit).

[0003] In the related art, liquid cooling is generally achieved through a large-scale cooling system. For example, multiple cold sources connected in series can simultaneously provide cooling for multiple CDUs connected in series. Multiple CDUs connected in series can also simultaneously provide cooling for multiple sets of cabinets connected in series. There is generally a ring network structure between the CDU and the multiple sets of cabinets. This system is also called a centralized ring network liquid cooling system (refer to Figure 1 ).

[0004] However, this method inevitably leads to the problem of unstable cooling. When one of the multiple nodes in the ring network structure fails, it is very likely to cause the entire cooling system to fail. Therefore, the cooling stability is poor. Summary of the invention

[0005] The embodiments of the present application provide a cooling system, a control method, a device, a equipment and a storage medium for the cooling system. The technical solution provided by the present application includes the following aspects.

[0006] According to one aspect of an embodiment of the present application, a cooling system is provided, the system comprising a plurality of cooling sources, a plurality of cabinets, a plurality of wind walls, and N CDUs, where N is a positive integer greater than 1;

[0007] Each of the multiple cold sources is respectively connected to at least one of the multiple wind walls, different cold sources are connected to different wind walls, and the cold source is used to provide air cooling for the cabinet through the wind wall;

[0008] Each of the multiple cold sources is respectively connected to at least one CDU among the N CDUs, and different cold sources are connected to the same or different CDUs, and the cold source is used to provide liquid cooling for the cabinet through the CDU;

[0009] Each of the N CDUs is connected to the plurality of cabinets via a supply and return pipeline, and the supply and return pipeline is a pipeline used to supply liquid to and return liquid to the cabinet.

[0010] According to one aspect of an embodiment of the present application, a control method for a cooling system is provided, wherein the system includes multiple cold sources, multiple cabinets, multiple wind walls, and N CDUs, where N is a positive integer greater than 1, and the method includes the following steps.

[0011] Controlling the multiple cold sources to provide a second cooling medium for wind walls respectively connected to the multiple cold sources, wherein the wind walls are used to provide air cooling for the cabinet;

[0012] Controlling the plurality of cold sources to provide the second cooling medium to the CDUs respectively connected to the plurality of cold sources;

[0013] Control the N CDUs, provide a first cooling medium to the multiple cabinets respectively connected to each of the N CDUs through supply and return pipelines, the second cooling medium is used to cool the first cooling medium through the CDU, the supply and return pipelines are pipelines for realizing liquid supply and liquid return for the cabinets, and the CDU is used to provide liquid cooling for the cabinets.

[0014] According to one aspect of an embodiment of the present application, a control device for a cooling system is provided, wherein the system includes multiple cold sources, multiple cabinets, multiple wind walls, and N CDUs, where N is a positive integer greater than 1, and the device includes the following modules.

[0015] A first control module, used for controlling the plurality of cold sources, and providing a second cooling medium for wind walls respectively connected to the plurality of cold sources, wherein the wind walls are used for providing air cooling for the cabinet;

[0016] A second control module, used for controlling the plurality of cold sources to provide the second cooling medium to the CDUs respectively connected to the plurality of cold sources;

[0017] The third control module is used to control the N CDUs, and to provide a first cooling medium to the multiple cabinets respectively connected to each of the N CDUs through supply and return pipelines, and the second cooling medium is used to cool the first cooling medium through the CDU. The supply and return pipelines are pipelines for realizing liquid supply and liquid return for the cabinets, and the CDU is used to provide liquid cooling for the cabinets.

[0018] According to one aspect of an embodiment of the present application, a computer device is provided, the computer device comprising a processor and a memory, the memory storing a computer program, the computer program being loaded and executed by the processor to implement the control method of the above-mentioned cooling system.

[0019] According to one aspect of an embodiment of the present application, a computer-readable storage medium is provided, in which a computer program is stored. The computer program is loaded and executed by a processor to implement the control method of the above-mentioned cooling system.

[0020] According to one aspect of an embodiment of the present application, a computer program product is provided. The computer program product includes a computer program. The computer program is loaded and executed by a processor to implement the control method of the above-mentioned cooling system.

[0021] The technical solution provided in the embodiments of the present application can bring the following beneficial effects.

[0022] Compared with the cooling system with a ring network structure in the related art, the cooling system proposed in the present application connects each CDU and each cabinet separately, and realizes independent cooling for each cabinet through the supply and return pipelines. In addition, for each cabinet, there are at least two CDUs to provide liquid cooling for it. When one of the CDUs fails, there is another CDU to provide cooling for it. Therefore, the cooling stability of the cooling system proposed in the present application is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of a cooling system provided by the related art;

[0024] Figure 2 is a schematic diagram of a cooling system provided by an embodiment of the present application;

[0025] Figure 3 is a schematic diagram of a cooling system provided by another embodiment of the present application;

[0026] Figure 4 is a schematic diagram of a supply and return pipeline provided by an embodiment of the present application;

[0027] Figure 5 is a schematic diagram of a supply and return pipeline provided by another embodiment of the present application;

[0028] Figure 6 is a schematic diagram of a CDU secondary side system provided by an embodiment of the present application;

[0029] Figure 7 is a schematic diagram of a CDU secondary side system provided by another embodiment of the present application;

[0030] Figure 8 is a schematic diagram of a communicating vessel provided by an embodiment of the present application;

[0031] Fig. 9 is a schematic diagram of an internal water replenishment system provided by an embodiment of the present application;

[0032] Fig.10 is a schematic diagram of a liquid cooling cabinet provided by an embodiment of the present application;

[0033] Fig.11 is a schematic diagram of a configuration scheme of a liquid cooling cabinet provided by an embodiment of the present application;

[0034] Fig.12 is a schematic diagram of an anti-spraying device provided by an embodiment of the present application;

[0035] Fig.13a is a schematic diagram of an anti-spraying device provided by another embodiment of the present application;

[0036] Fig.13b is a schematic diagram of an anti-spraying device provided in yet another embodiment of the present application;

[0037] Fig.14 is a schematic diagram of a control method for a cooling system provided by an embodiment of the present application;

[0038] Fig.15 is a schematic diagram of a leakage position provided by an embodiment of the present application;

[0039] Fig.16 This is a comparison chart of heat dissipation coefficients of air cooling and liquid cooling provided by an embodiment of the present application;

[0040] Fig.17 is a block diagram of a control device for a cooling system provided by an embodiment of the present application;

[0041] Fig.18 It is a structural block diagram of a computer device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0042] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0043] Before introducing the technical solution of the present application, a brief description is given of the cooling system and cooling method in the related technology.

[0044] IDC (Internet Data Centre) computer room is an infrastructure to ensure the long-term, reliable and stable operation of the server. It usually controls the temperature of the computer room, increases power distribution redundancy, isolates the computer room from the external environment, etc. to ensure that the server has a good operating environment. In terms of controlling the temperature of the computer room, the server in the IDC computer room in the relevant technology uses air cooling, that is, the server fan takes in cold air from the IDC computer room to dissipate heat for internal chips, motherboards, memory and other components. The heated air is discharged back to the IDC computer room by the server, and the computer room air conditioner cools the hot air to a suitable temperature and re-sends it into the computer room to the server air inlet. As for how to cool the hot air to cold air, it involves the following multiple solutions.

[0045] The first solution is to use air cooling for the server and air cooling for the chilled water system in the computer room.

[0046] For example, in an MDC (Modular Data Center) computer room, a centralized chilled water station will be set up in the computer room building. The station contains multiple chillers. After the chilled water is produced by the chiller, it is transported to the heat exchange unit of the MDC module (usually the inter-row air conditioner) through a water pump. The hot air in the MDC exchanges heat with the inter-row air conditioner to obtain cold air. The chilled water after heat exchange returns to the chiller. The heat dissipation of the chiller requires cooling water sent by the cooling tower. After the low-temperature cooling water enters the chiller, it exchanges heat with the condenser of the chiller to take out the heat, and finally the cooling tower discharges the heat to the outside.

[0047] The second solution is to use air cooling for the server and an indirect evaporative cooling system for the computer room.

[0048] For example, in the architecture used in the TBLOCK computer room, each computer room is equipped with 9 indirect evaporative cooling air conditioners. The hot air generated by the servers in the computer room passes through the return air duct and returns to the indirect evaporative cooling air conditioner. The air is then cooled to a suitable temperature through heat exchange between the air conditioner and the outside world and sent back to the server air inlet.

[0049] The third solution is to use liquid cooling for the server and air cooling for the computer room’s chilled water system.

[0050] For example, the chilled water system is similar to air cooling, with cold air delivered to the MDC cold channel through the row air conditioner. The difference is that the server is liquid-cooled, and cold water is produced by an air-cooled CDU. The circulating water pump in the CDU supplies cold water to the server for heat dissipation. The heated circulating water returns to the CDU and the cold air in the cold channel takes away the heat. This solution is mostly used in scenarios where the infrastructure does not have the conditions for transformation and the server needs practical liquid cooling. This solution has poor energy efficiency and is not feasible for large-scale deployment.

[0051] The fourth solution is liquid cooling of the server and liquid cooling of the computer room’s chilled water system.

[0052] The difference from the first solution is that the CDU is no longer air-cooled, but a liquid-cooled CDU equipped with a liquid-liquid heat exchanger, and the chilled water system directly removes the heat from the server. This solution can significantly reduce the heat load on the air-cooled side and is feasible for large-scale deployment. However, due to the need for the chiller to take into account air cooling, the chilled water temperature cannot be set too high, resulting in low system energy efficiency.

[0053] The above four solutions are all liquid cooling transformation and adaptation based on the existing infrastructure. In the related technology, for the newly built data center liquid cooling room, the architecture design is as follows: the fifth solution.

[0054] The fifth solution is to use liquid cooling for the server and liquid cooling system for the computer room.

[0055] Similar to the fourth solution, it is divided into primary and secondary sides, with the CDU board as the boundary, and the cycle involved in server heat dissipation is the secondary side cycle. The main difference is that this solution is usually decoupled from air cooling, and the primary side cold source no longer provides the low-temperature chilled water required for air cooling, while the cold water temperature required for server heat dissipation is higher. Compared with the fourth solution, the chiller can be discarded and the cooling tower can be used to directly produce cold water, thereby improving energy efficiency. In related technologies, newly built liquid cooling water systems (primary and secondary sides) are all large water systems, such as Figure 1 As shown, there are widespread systemic risks (i.e., a single point failure can cause the entire system to collapse), poor reliability, and high operational pressure.

[0056] The problems existing in the technical solutions mentioned in the related art include the following aspects.

[0057] On the one hand, since liquid cooling has better heat dissipation efficiency than air cooling, the server can achieve lower shell temperature through liquid cooling, thereby increasing the operating frequency and achieving the purpose of improving computing power. Therefore, consider replacing air cooling.

[0058] On the other hand, the output of IT (Internet Technology) is low. Compared with air cooling, the power demand of liquid cooling for power support equipment (air conditioning, power distribution loss, etc.) is lower than that of air cooling, so it can increase the IT power output of the computer room and allow more servers to be installed in the computer room.

[0059] On the other hand, the energy consumption is high and the natural cooling capacity is poor. In the related art, the computer room is mostly maintained by compressor cooling, and the power support equipment (air conditioning, power distribution loss, etc.) has high energy consumption. Since the liquid-cooled server does not require low-temperature chilled water, the cooling tower can be directly used for natural cooling and heat dissipation, and the large-scale chiller in the computer room in the related art can be discarded.

[0060] On the other hand, the computer room occupies a large area. Since liquid cooling breaks through the heat dissipation bottleneck of air cooling, the server power density is higher, so compared with air cooling computer rooms, liquid cooling computer rooms occupy a smaller area, saving land resources and improving space utilization.

[0061] In addition, the noise is loud. Air-cooled servers use built-in fans to dissipate heat, which produces a lot of noise pollution (up to 90dBA), which harms the health of operation and maintenance personnel. Liquid-cooled servers have eliminated most of the built-in fans, which can reduce the noise level and are more friendly to operation and maintenance.

[0062] Finally, long-term high temperature causes component aging. The internal components of air-cooled servers run at high temperatures for a long time, which accelerates aging, shortens the life of the equipment, and increases the failure rate. Liquid-cooled server components can be kept at a low level, reducing failures caused by aging.

[0063] Considering these problems in the related art, the cooling system proposed in this application not only realizes the combination of air cooling and liquid cooling, but also connects each CDU and each cabinet separately, and realizes separate cooling for each cabinet through the supply and return pipeline. In addition, for each cabinet, there are at least two CDUs to provide liquid cooling for it. When one of the CDUs fails, there is another CDU to provide cooling for it. Therefore, the cooling stability of the cooling system proposed in this application is good. Please refer to the explanation of the following embodiment for details.

[0064] Please refer to Figure 2 , which shows a schematic diagram of a cooling system provided by an embodiment of the present application.

[0065] In some embodiments, the system includes multiple cold sources, multiple cabinets, multiple wind walls, and N CDUs, where N is a positive integer greater than 1.

[0066] For example, the number of cold sources, cabinets, wind walls, and CDUs is 2. Figure 2 As shown, the system 200 includes multiple cold sources (such as a first cold source 210 and a second cold source 220), multiple cabinets (such as a first cabinet 270 and a second cabinet 280), multiple wind walls (such as a first wind wall 230 and a second wind wall 240), and N CDUs (such as a first CDU 250 and a second CDU 260), where N is a positive integer greater than 1.

[0067] Exemplarily, the present application does not limit the number of cold sources, cabinets, and wind walls. Exemplarily, the number of cold sources and wind walls is N.

[0068] In some embodiments, CDU is an important component for distributing cooling capacity in fields such as data centers and communications industries that require refrigeration equipment. The device, which is mainly composed of a circulating pump, a frequency converter, a filter, a heat exchanger, an electronic control unit, a sensor unit, connecting pipes and valves, transfers the heat of the equipment to the secondary cooling loop water circulation system through the built-in heat exchanger of the CDU. It is the core of the liquid cooling solution, responsible for the utilization of the cold source and the heat dissipation of the heat source, and serves as a bridge between the primary and secondary sides. It can be configured as needed to save heat dissipation power consumption to the maximum extent.

[0069] Exemplarily, the CDU includes a heat exchange component (such as a plate heat exchanger or a shell heat exchanger). The heat exchange component includes two channels, wherein the first heat exchange channel is connected to both ends of the cold source, and the second heat exchange channel is connected to both ends of the cabinet. Exemplarily, heat exchange is achieved between the two channels. Exemplarily, the first heat exchange channel includes a cooling medium provided by the cold source, such as cooling water. There is also a cooling medium in the second heat exchange channel (different from the cooling medium in the first heat exchange channel), and the cooling medium can also be called a heat exchange medium. Exemplarily, the cooling water provided by the cold source passes through the heat exchange component, so that the cooling medium in the second heat exchange channel is cooled, and the cooling medium in the second heat exchange channel passes through the circulation pipeline to achieve cooling of the cabinet. Exemplarily, the pipeline where the first heat exchange channel is located and the pipeline where the second heat exchange channel is located are independent of each other, and the cooling media inside the two are different, and they do not circulate and are independent of each other.

[0070] Exemplarily, the pipe where the first heat exchange channel in the heat exchange assembly of the CDU is located is called the primary side of the CDU, and the pipe where the second heat exchange channel is located is called the secondary side of the CDU. Exemplarily, the primary side of the CDU may include a cold source, and may also include or exclude a wind wall. Exemplarily, the secondary side of the CDU includes a cabinet and other components connected to the second heat exchange channel inside the CDU.

[0071] In some embodiments, each of the multiple cold sources is respectively connected to at least one of the multiple wind walls, different cold sources are connected to different wind walls, and the cold sources are used to provide air cooling for the cabinet through the wind walls.

[0072] In some embodiments, the cold source is a device for providing a cooling medium. Exemplarily, the cold source is a cooling tower. Exemplarily, the cold source provides cooling medium to the primary side of the CDU and the wind wall respectively. Exemplarily, the pipelines for the cold source to provide cooling medium to the primary side of the CDU and the wind wall are parallel pipelines.

[0073] In some embodiments, taking a cooling tower as an example, the cooling source includes a water outlet main pipe and a water inlet main pipe. The cooling medium provided by the water outlet main pipe of the cooling tower performs heat exchange with the wind wall and the CDU respectively, and the temperature of the cooling medium entering the water inlet main pipe of the cooling tower (water inlet temperature) is greater than the temperature of the cooling medium provided by the water outlet main pipe of the cooling tower (water outlet temperature).

[0074] In some embodiments, since the cooling tower is installed outdoors, when the outdoor temperature is low, the outlet water temperature of the cooling tower is also low. At this time, the cooling medium provided by the cooling tower can also be called a natural cooling source. The natural cooling source is brought by natural cooling. Natural cooling is a cooling method that uses the fluid circulation process generated by the change of density with temperature to remove heat. This method is a spontaneous process that uses heat exchange, convection, thermal radiation and other transfer forms to allow an object to discharge heat to the ambient medium, reduce the temperature of the object, and finally reach the same temperature as the ambient temperature.

[0075] In some embodiments, the cooling tower comprises a dry heat exchanger and a wet heat exchanger, wherein the dry heat exchanger and the wet heat exchanger are connected in series. Exemplarily, the wet heat exchanger is a wet coil. Exemplarily, the dry heat exchanger is a dry fin heat exchanger.

[0076] Exemplarily, the wind wall side includes a surface cooler and an evaporator. Exemplarily, the surface cooler is a natural cooling surface cooler. Exemplarily, the internal air can be cooled to form cold air through the action of the surface cooler. In other embodiments, the wind wall side also includes an indoor fan and an air outlet. Exemplarily, the indoor fan and the air outlet help transfer the internal cold air to the room, so that the wind wall provides air cooling to the outside.

[0077] Exemplarily, when the cooling tower includes a dry heat exchanger and a wet heat exchanger, the cooling tower can also be called a dry-wet combined cooling tower in the form of a water system in series. Among them, the wet coil is mainly used in summer, at which time the dry fin heat exchanger is also used synchronously to improve the heat dissipation capacity of the cooling tower, reduce the power of the fan motor, and play a role in defogging. The same is true in winter. Exemplarily, the evaporator is arranged on the air outlet side of the surface cooler, and the evaporator is used to provide air cooling.

[0078] In other embodiments, the cold source in the present application is also referred to as an integrated cold source (a cold source that realizes both air cooling and liquid cooling). Exemplarily, the integrated cold source is composed of a closed cooling tower and a wind wall. Exemplarily, the heat exchange medium circulating in the heat exchange tube of the closed cooling tower is not water in the related art, but a refrigerant that is easy to condense and gasify at room temperature, such as Freon. The gaseous refrigerant is condensed into a liquid in the closed cooling tower, and the liquid refrigerant is pressurized by the refrigerant pump, and a part of the liquid refrigerant is throttled by the expansion valve to form a gas-liquid two-phase refrigerant. It evaporates in the evaporator of the wind wall and exchanges heat with the hot return air from the cabinet. The hot return air is cooled by the evaporator coil and then re-sent to the cabinet. Another part of the liquid refrigerant is throttled by another expansion valve to form a gas-liquid two-phase refrigerant, which evaporates in the plate exchange or shell and tube heat exchanger or other heat exchangers with similar functions in the CDU, exchanges heat with the heat exchange medium on the secondary side, and takes away the liquid cooling load of the cabinet.

[0079] Since the primary closed cooling tower is placed outdoors, if the heat exchange medium in the cooling tower heat exchange coil and connecting pipes is water, there is a risk of freezing in winter; if the heat exchange medium is a certain concentration of ethylene glycol solution or other antifreeze liquid, there is a risk of low heat exchange efficiency and corrosion of the heat exchange medium to the coil, pipes and other water components. If the heat exchange medium in the closed cooling tower heat exchange coil and connecting pipes is refrigerant, there is no problem of freezing in the heat exchange coil and connecting pipe in winter because the freezing point of the refrigerant is very low under specific pressure conditions. In addition, since the refrigerant undergoes phase change heat transfer in the heat exchanger, the heat exchange efficiency will increase, the heat exchange area of ​​the closed cooling tower, wind wall and CDU heat exchanger can be reduced, and the diameter of the connecting pipe can also be reduced, which can also reduce the initial investment of the equipment.

[0080] For example, the closed cooling tower includes a fan, an evaporating tube row, a tube-fin dry cooler, fillers, a spray pump, a primary water pump, a water valve, and pipelines. The closed cooling tower is placed outdoors to provide lower temperature water to the wind wall and CDU.

[0081] For example, when the outdoor wet-bulb temperature is high (e.g., higher than the first temperature threshold), the spray pump is turned on, and the high-temperature return water from the wind wall and CDU flows through the tube-fin dry cooler and the evaporator tube row, and is cooled into water with a lower temperature, which is then transported to the wind wall and CDU by the primary side water pump for refrigeration. At this time, the heat exchange of the cooling tower mainly depends on the evaporator tube row.

[0082] For example, when the outdoor dry bulb temperature is low (such as lower than the first temperature threshold), the spray pump is turned off, and the high-temperature return water from the wind wall and CDU flows through the tube-fin dry cooler and the evaporator tube row, and is cooled into water with a lower temperature, which is then transported to the wind wall and CDU by the primary side water pump for refrigeration. At this time, the heat exchange of the cooling tower mainly relies on the tube-fin dry cooler.

[0083] Exemplarily, the wind wall includes a compressor, a surface cooler, a plate heat exchanger (evaporator), a plate heat exchanger (condenser), an expansion valve, an indoor filter, a water valve, pipes, a fan and an air valve (optional), which is placed inside the cabinet to provide air-cooled cooling capacity to the cabinet.

[0084] Exemplarily, when the water supply temperature of the cooling tower is high (such as higher than the second temperature threshold), the compressor system in the wind wall is turned on, and the low-temperature and low-pressure refrigerant evaporates in the evaporator plate exchanger, so that the temperature of the water supply flowing through the evaporator plate exchanger is reduced. The water supply with reduced temperature enters the surface cooler and exchanges heat with the high-temperature return air in the cabinet. After the water temperature rises, it enters the compressor system condenser plate exchanger, is heated by the high-temperature and high-pressure refrigerant, and then returns to the cooling tower again.

[0085] Of course, the technical solution provided in the embodiment of the present application is based on the outlet water temperature of the cooling tower to achieve different cooling modes.

[0086] In some embodiments, the mode of the system is determined according to the temperature of the water outlet main of the cooling tower, and the modes include mechanical refrigeration mode, natural refrigeration mode, and mixed refrigeration mode; the system is adjusted according to the mode of the system.

[0087] In some embodiments, when the temperature of the water outlet main is greater than or equal to a first value, it is determined that the mode of the system is a mechanical refrigeration mode. Exemplarily, when the temperature of the water outlet main is high, natural refrigeration cannot be used, and the mechanical refrigeration mode is directly enabled. Exemplarily, the mechanical refrigeration mode here can be understood as not requiring the use of an outdoor natural cold source, and requiring mechanical refrigeration entirely by a compressor. At this time, the outdoor temperature is high, and an outdoor natural cold source cannot be used.

[0088] In some embodiments, when the temperature of the water outlet main is less than or equal to the third value, it is determined that the mode of the system is in the natural cooling mode. Exemplarily, when the temperature of the water outlet main is very low, only the outdoor cold source can be used for natural cooling, and there is no need to activate the compressor system. That is, only the natural cooling of the outdoor cold source is used, and no mechanical cooling of the compressor system is required. Exemplarily, the natural cooling mode here can be understood as fully utilizing the outdoor natural cold source, and no mechanical cooling by the compressor is required. At this time, the outdoor temperature is low, and the outdoor natural cold source can be fully utilized.

[0089] In some embodiments, when the temperature of the water outlet main is less than or equal to the second value, it is determined that the mode of the system is a hybrid refrigeration mode. Exemplarily, when the temperature of the water outlet main is not very high, it can play a role of natural refrigeration to a certain extent, and the hybrid refrigeration mode needs to be enabled. That is, both natural refrigeration using an outdoor cold source and mechanical refrigeration using a compressor system. Exemplarily, the hybrid refrigeration mode here can be understood as both utilizing an outdoor natural cold source and requiring mechanical refrigeration by a compressor.

[0090] In some embodiments, the first value is greater than or equal to the second value, and the second value is greater than the third value.

[0091] In some embodiments, the heat dissipation corresponding to the CDU and the wind wall is determined. Exemplarily, the return air temperature and humidity and the supply air temperature and humidity of the wind wall are obtained; the inlet and outlet air enthalpy difference is determined according to the return air temperature and humidity and the supply air temperature and humidity of the wind wall; the heat dissipation of the wind wall is determined based on the inlet and outlet air enthalpy difference and the air volume of the wind wall. Exemplarily, the wind wall used to provide air cooling is also called the wind wall side. The wind wall side calculates the return air temperature and humidity (based on the measured value obtained by the sensor) and the target supply air temperature and humidity (based on the measured value obtained by the sensor), and the corresponding air physical parameter table can be consulted to obtain the corresponding inlet and outlet air enthalpy difference. Exemplarily, the heat dissipation of the wind wall is determined based on the inlet and outlet air enthalpy difference, the air volume of the wind wall, and the air density. Exemplarily, the product of the inlet and outlet air enthalpy difference, the air volume of the wind wall, and the air density is determined as the heat dissipation of the wind wall. Exemplarily, the air volume of the wind wall can be determined according to the air volume corresponding to the speed of the fan in the wind wall.

[0092] In some embodiments, the heat dissipation of the CDU is calculated based on the inlet and outlet water temperature difference on the secondary side, the specific volume corresponding to the average temperature of the inlet and outlet water (obtained by looking up the corresponding physical property parameter table), the density corresponding to the average temperature of the inlet and outlet water (obtained by looking up the corresponding physical property parameter table), the water flow rate (measured value of a water flow meter), and the heat transfer coefficient (heat transfer efficiency of the primary and secondary sides). Exemplarily, the product of the inlet and outlet water temperature difference on the secondary side, the specific volume corresponding to the average temperature of the inlet and outlet water (obtained by looking up the corresponding physical property parameter table), the density corresponding to the average temperature of the inlet and outlet water (obtained by looking up the corresponding physical property parameter table), the water flow rate (measured value of a water flow meter), and the heat transfer coefficient (heat transfer efficiency of the primary and secondary sides) is determined as the heat dissipation of the CDU.

[0093] Exemplarily, the total heat dissipation that the cooling tower needs to provide is equal to the heat dissipation of the wind wall + the heat dissipation of the CDU.

[0094] In some embodiments, in order to maximize the water supply efficiency, the water supply of the cooling tower to the wind wall and CDU is adjusted according to the total heat dissipation required to be provided by the cooling tower. Exemplarily, the water supply target value is determined according to the total heat dissipation required to be provided by the cooling tower, the inlet and outlet water temperature difference of the cooling tower, the specific volume corresponding to the average inlet and outlet water temperature, and the density corresponding to the average inlet and outlet water temperature; the speed of the water pump is adjusted so that the water supply of the cooling tower is equal to the water supply target value. Exemplarily, the target total water flow rate is obtained according to the total heat dissipation / the inlet and outlet water temperature difference of the cooling tower / the specific volume corresponding to the average inlet and outlet water temperature of the cooling tower (obtained by checking the corresponding physical property parameter table) / the density corresponding to the average inlet and outlet water temperature of the cooling tower (obtained by checking the corresponding physical property parameter table). Exemplarily, the target total water flow rate is equal to the water supply target value. Exemplarily, the speed of the water pump of the cooling tower is adjusted so that the water supply of the cooling tower is equal to the water supply target value.

[0095] Exemplarily, each cold source is connected to a wind wall. Exemplarily, if Figure 2 As shown, in the system 200, the first cooling source 210 is connected to the first wind wall 230, and the second cooling source 220 is connected to the second wind wall 240. Exemplarily, the first cooling source 210 and the second cooling source 220 are connected to different wind walls.

[0096] Exemplarily, each of the multiple cold sources is connected to at least two of the multiple wind walls, different cold sources are connected to different wind walls, and the cold sources are used to provide air cooling for the cabinets through the wind walls.

[0097] Exemplarily, for the same wind wall, one or more cold sources are allowed to provide cooling for it.

[0098] In some embodiments, each of the multiple cold sources is respectively connected to at least one CDU among the N CDUs, and different cold sources are connected to the same or different CDUs, and the cold sources are used to provide liquid cooling for the cabinets through the CDU.

[0099] Exemplarily, each of the multiple cold sources is connected to one CDU in the N CDUs, and the CDUs connected to different cold sources may be the same. Exemplarily, there are at least two cold sources and one CDU connected simultaneously. Exemplarily, each of the multiple cold sources is connected to multiple CDUs in the N CDUs respectively, and the CDUs connected to different cold sources may be the same.

[0100] Exemplarily, each of the multiple cold sources is connected to one of the N CDUs, and different cold sources are connected to different CDUs. Exemplarily, each of the multiple cold sources is connected to multiple CDUs in the N CDUs, respectively, and different cold sources are connected to different CDUs. Exemplarily, there is a cold source connected to two CDUs at the same time. Exemplarily, there is a cold source connected to two CDUs at the same time. Exemplarily, when the cold source is used as a public cold source, the cold source can be used as a backup cold source. When a cold source connected to the CDU fails, another backup cold source can be switched to provide cooling for the CDU. Exemplarily, no matter which CDU fails, the public backup cold source can be switched to provide cooling for it.

[0101] For example, Figure 2 As shown, in the system 200, the first cold source 210 is connected to the first CDU 250, and the second cold source 220 is connected to the second CDU 260. Exemplarily, the CDUs to which the first cold source 210 and the second cold source 220 are connected are the same or different.

[0102] In some embodiments, each of the N CDUs is connected to a plurality of cabinets through a supply and return pipeline, and the supply and return pipeline is a pipeline used to supply and return liquid to the cabinets.

[0103] Exemplarily, a CDU is connected to a cabinet via a pair of supply and return pipes. Exemplarily, the pair of supply and return pipes includes a liquid supply pipe and a liquid return pipe. Exemplarily, the CDU provides cooling medium to the cabinet via the liquid supply pipe, and the cooling medium flows back to the CDU via the liquid return pipe after heat exchange with the cabinet.

[0104] For example, Figure 2 As shown, in the system 200 , the first CDU 250 is connected to the first cabinet 270 via a pair of supply and return pipes, and the first CDU 250 is connected to the second cabinet 280 via another pair of supply and return pipes.

[0105] For example, Figure 2 As shown, in the system 200 , the CDU 260 is connected to the first cabinet 270 via a pair of supply and return pipes, and the CDU 260 is connected to the second cabinet 280 via another pair of supply and return pipes.

[0106] In some embodiments, Figure 3 , which is a schematic diagram of a cooling system provided by another embodiment of the present application. Figure 3 As shown, the cooling system includes four groups of cooling submodules, each group of cooling submodules (such as cooling submodule 310) includes two integrated cold sources, two wind walls, two CDUs and a group of cabinets (including cabinets 01 to 08 and a network cabinet). Each group of cooling submodules is equivalent to a separate cooling system in this application. Exemplarily, the four cooling submodules are used to provide cooling for four different groups of cabinets.

[0107] The cooling system proposed in this application not only realizes the combination of air cooling and liquid cooling, but also connects each CDU to each cabinet separately, and realizes independent cooling for each cabinet through the supply and return pipeline. In addition, for each cabinet, there are at least two CDUs to provide liquid cooling for it. When one of the CDUs fails, another CDU will provide cooling for it. This is conducive to ensuring the stability of cooling.

[0108] In some embodiments, for the nth CDU among N CDUs, the nth CDU includes a heat exchange component, the supply and return pipelines include a liquid supply main pipeline, at least one liquid supply branch pipeline, at least one liquid supply branch pipeline, a liquid return main pipeline, at least one liquid return branch pipeline, and at least one liquid return branch pipeline. The at least one liquid supply branch pipeline includes a liquid supply branch pipeline corresponding to at least one liquid supply branch pipeline, and the at least one liquid return branch pipeline includes a liquid return branch pipeline corresponding to at least one liquid return branch pipeline. n is a positive integer less than or equal to N.

[0109] Exemplarily, the nth CDU (hereinafter referred to as CDU) includes, in addition to the heat exchange component and the supply and return pipeline, a circulating water pump and a static pressure gas header. Exemplarily, the heat exchange component is a liquid-liquid plate heat exchanger. Exemplarily, the static pressure gas header is a pipeline for centrally collecting return water, arranging the return water entering the circulating water pump, and preventing the occurrence of bubbles, uneven water flow, etc.

[0110] In some embodiments, one end of the main liquid supply pipeline is connected to the heat exchange component, and the other end is connected to a plurality of branch liquid supply pipelines.

[0111] Exemplarily, the supply and return pipelines in the present application adopt a design of a main branch (Coolant Re-Distribution Unit, CRU) and a re-branch. Exemplarily, one end of the main liquid supply pipeline is connected to the heat exchange component, and the other end is connected to the liquid supply branch pipeline. Exemplarily, one main liquid supply pipeline can be connected to multiple liquid supply branch pipelines. Exemplarily, each liquid supply branch pipeline can also be divided into multiple liquid supply branch pipelines.

[0112] In some embodiments, the main liquid supply pipeline is connected to at least one liquid supply branch pipeline, and each of the at least one liquid supply branch pipeline is connected to a corresponding liquid supply branch pipeline. By way of example, the present application does not limit the number of liquid supply branch pipelines corresponding to each liquid supply branch pipeline, such as each liquid supply branch pipeline corresponds to at least two liquid supply branch pipelines.

[0113] In some embodiments, the nth CDU also includes: a redistribution liquid supply branch line connected to the liquid supply main line, and a redistribution liquid return branch line connected to the liquid return main line; the redistribution liquid supply branch line is connected to one end of an RDU (Re-Distribution Unit, distribution cabinet), and the RDU is used to provide liquid cooling for other cabinets except multiple cabinets; the redistribution liquid return branch line is connected to the other end of the RDU.

[0114] In some embodiments, the nth CDU also includes an RDU. Exemplarily, each CDU includes an RDU. Exemplarily, the cooling system includes N CDUs and N RDUs, one CDU is connected to an RDU, and each CDU is connected to a different RDU.

[0115] Exemplarily, the main liquid supply pipeline on the secondary side of the CDU has three branch pipelines, including a first liquid supply branch pipeline, a second liquid supply branch pipeline, and a third liquid supply branch pipeline. Exemplarily, the first liquid supply branch pipeline has five liquid supply branch pipelines. Exemplarily, the second liquid supply branch pipeline has five liquid supply branch pipelines. Exemplarily, the third liquid supply branch pipeline is connected to the distribution cabinet and further divided into multiple liquid supply branch pipelines. Exemplarily, the third liquid supply pipe branch is also the above-mentioned redistribution liquid supply branch pipeline, which is used to connect the distribution cabinet to achieve the expansion of the cabinet and to provide cooling for more cabinets.

[0116] Exemplarily, the RDU is connected to other cabinets separately. Exemplarily, one RDU is connected to each cabinet in other cabinets separately, and cooling is provided to each cabinet separately. The connection method here refers to the connection between CDU and cabinet. Exemplarily, the RDU is also connected to each cabinet in other cabinets through supply and return pipelines. Exemplarily, the connecting pipelines between the RDU and other cabinets are also considered as branch pipelines, including liquid supply branch pipelines and liquid return branch pipelines.

[0117] In some embodiments, one end of each of the plurality of cabinets is connected to one of the at least one liquid supply branch pipelines. Exemplarily, the liquid supply branch pipeline here should be interpreted as a higher level, and when the CDU and the cabinet are connected, the liquid supply branch pipeline inside the CDU is connected to the cabinet through a branch hose outside, and this branch hose is also considered to be a liquid supply branch pipeline, that is, it includes the connecting pipeline between the CDU and the cabinet.

[0118] In some embodiments, the other end of the heat exchange component is in communication with the main liquid return line.

[0119] In some embodiments, the liquid return main pipeline is connected to at least one liquid return branch pipeline, and each liquid return branch pipeline in at least one liquid return branch pipeline is connected to the liquid return branch pipeline corresponding to the liquid return branch pipeline. By way of example, the present application does not limit the number of liquid return branch pipelines corresponding to each return branch pipeline, such as each liquid return branch pipeline corresponds to at least two liquid supply branch pipelines. By way of example, the design of the liquid return part is consistent with the design of the liquid supply part, such as the number of liquid return branch pipelines is consistent with the number of liquid supply branch pipelines, and the number of liquid return branch pipelines corresponding to each liquid return branch pipeline and the number of liquid supply branch pipelines corresponding to each corresponding liquid supply branch pipeline are consistent.

[0120] In some embodiments, the other end of each of the plurality of cabinets is connected to one of the at least one liquid return branch pipeline.

[0121] In some embodiments, the number of liquid supply branch pipelines and the number of liquid return branch pipelines in the nth CDU are respectively greater than or equal to the number of cabinets.

[0122] Exemplarily, if the multiple cabinets include a total of 9 cabinets, the number of liquid supply branch pipes in the nth CDU should be at least 9, and the number of liquid return branch pipes should also be at least 9. Exemplarily, the liquid supply branch pipes and the liquid return branch pipes correspond one to one, and the number of the two is the same. Exemplarily, the number of liquid supply branch pipes and the number of liquid return branch pipes in the nth CDU are respectively greater than or equal to the number of cabinets. This is to take into account that when one pair of liquid supply and return branch pipes fails, other branch pipes can be temporarily switched to provide cooling for the cabinet as an emergency consideration.

[0123] Exemplarily, the type and quantity of the secondary side return liquid pipelines correspond to the type and quantity of the supply liquid pipelines, and the return liquid main pipeline has three branches: the first return liquid branch pipeline, the second return liquid branch pipeline, and the third return liquid branch pipeline. Exemplarily, the first return liquid branch pipeline has four return liquid branch pipelines. Exemplarily, the second return liquid branch pipeline has five return liquid branch pipelines. Exemplarily, the third return liquid branch pipeline is connected to the distribution cabinet and is further divided into multiple return liquid branch pipelines. Each pair of supply and return liquid branches can directly supply cooling liquid to a single server without setting up a loop. Exemplarily, the third return liquid pipe branch is also the above-mentioned redistribution return liquid branch pipeline.

[0124] In some embodiments, the system also includes a first control valve group, which is arranged in at least one of the following: a liquid supply branch pipeline, a liquid return branch pipeline; the first control valve group is used to control whether liquid cooling is provided for a cabinet connected to the liquid supply branch pipeline or the liquid return branch pipeline.

[0125] Exemplarily, a first control valve group is provided in each liquid supply branch pipeline, but a first control valve group is not provided in each liquid return branch pipeline, for realizing control of whether each liquid supply branch pipeline provides cooling to the cabinet connected thereto. Exemplarily, a first control valve group is provided in each liquid return branch pipeline, but a first control valve group is not provided in each liquid supply branch pipeline, for realizing control of whether each liquid return branch pipeline provides cooling to the cabinet connected thereto. Exemplarily, a first control valve group is provided in each liquid supply branch pipeline and each liquid return branch pipeline, for realizing control of whether each pair of liquid supply and return branch pipelines provides cooling to the cabinet connected thereto.

[0126] Exemplarily, the first control valve group includes at least one of a solenoid valve and a manual butterfly valve.

[0127] In some embodiments, the system also includes a second control valve group, which is arranged in at least one of the following: a redistribution liquid supply branch line, a redistribution liquid return branch line; the second control valve group is used to control whether to enable the RDU to provide liquid cooling for other cabinets.

[0128] Exemplarily, a second control valve group is provided in the redistribution liquid supply branch line, but a second control valve group is not provided in the redistribution liquid return branch line, which is used to control whether the RDU connected to the redistribution liquid supply branch line provides liquid cooling for other cabinets. Exemplarily, a second control valve group is provided in the redistribution liquid return branch line, but a second control valve group is not provided in the redistribution liquid supply branch line, which is used to control whether the RDU connected to the redistribution liquid return branch line provides liquid cooling for other cabinets. Exemplarily, a second control valve group is provided in both the redistribution liquid supply branch line and the redistribution liquid return branch line, which is used to control whether the RDU connected to the redistribution liquid supply branch line and the redistribution liquid return branch line provides liquid cooling for other cabinets.

[0129] Exemplarily, the second control valve group includes at least one of a solenoid valve and a manual butterfly valve. Exemplarily, when the cabinets requiring cooling exceed the cabinets connected to the CDU body, the RDU needs to be activated to increase the number of branches, in which case the second control valve group is opened.

[0130] Exemplarily, the return liquid branch pipeline (such as the first return liquid branch pipeline and the second return liquid branch pipeline) are equipped with electric regulating valves, flow meters, and water pressure sensors. The control panel controls the opening and closing degree of the electric regulating valve and adjusts the flow rate on the branch pipeline according to the feedback from the flow meter, pressure sensor, and temperature sensor. Electric valves are installed on the return liquid and supply liquid branch pipelines, which can automatically control the opening and closing of a single branch pipeline. Manual butterfly valves are installed on the redistribution liquid supply branch pipeline and the redistribution return liquid branch pipeline (such as the third return liquid branch pipeline and the third supply liquid branch pipeline) to manually close or open the liquid supply to the distribution cabinet. Temperature sensors and water pressure sensors are installed on the main liquid supply pipeline, and the control panel can automatically obtain the temperature and pressure of the coolant.

[0131] For example, Figure 4 , is a schematic diagram of a supply and return pipeline provided in one embodiment of the present application. Figure 4 In the figure, the first liquid supply branch pipeline 1, the liquid supply main pipeline 2, the second liquid supply branch pipeline 3, the liquid return main pipeline 4, the third liquid supply branch pipeline 5, the third liquid return branch pipeline 6, the liquid supply branch pipeline 7, the electric regulating valve 8, the flow meter 9, the second liquid return branch pipeline 10, the first liquid return branch pipeline 11, and the liquid return branch pipeline 12.

[0132] For example, Figure 5 , is a schematic diagram of a supply and return pipeline provided in another embodiment of the present application. Figure 5 Among them, water pressure sensor 13, temperature sensor 14, electric valve 15, manual butterfly valve 16.

[0133] In some embodiments, the liquid supply branch pipes and liquid return branch pipes respectively included in N CDUs form a pipe network; the liquid supply branch pipe and liquid return branch pipe in the nth CDU respectively connected to the two ends of the same cabinet are a pair of liquid supply and return branch pipes in the nth CDU, and each cabinet corresponds to N pairs of liquid supply and return branch pipes from N CDUs that provide liquid cooling for the cabinet. Exemplarily, when there are 2 CDUs, each cabinet corresponds to 2 pairs of liquid supply and return branch pipes from 2 CDUs that provide liquid cooling for the cabinet.

[0134] For example, Figure 6 , is a schematic diagram of a secondary side system provided by another embodiment of the present application. Figure 6As shown, the liquid supply branch pipelines and liquid return branch pipelines respectively included in the N CDUs form a second pipe network 620. Exemplarily, the liquid supply branch pipelines and liquid return branch pipelines respectively included in the N RDUs for other cabinets also form a first pipe network 610. Exemplarily, the pipelines in the pipe network are not interconnected.

[0135] Exemplarily, the CDU is connected to the cabinet via a branch hose. Exemplarily, each branch hose is used to connect a branch line (including a return branch line and a supply branch line) and the cabinet to which the branch line points. Exemplarily, the branch hose connected to the branch line is also considered to be part of the branch line, and is collectively referred to as a branch line.

[0136] For example, Figure 7 The secondary side system shown mainly includes CDU, RDU, liquid cooling cabinet (ie cabinet) and branch hose. Exemplarily, CDU is arranged in a row, and a single row includes at least two CDUs, which can support both cold standby and hot standby scenarios (see the explanation of the following embodiment, which will not be repeated here). Exemplarily, the CDU liquid supply mode has two strategies: flow and pressure difference, which can provide stable liquid supply temperature and pressure. RDU is used in combination with CDU, and two columns (one column of CDU and one column of RDU) can form an IT module unit with closed hot / cold channels. Both CDU and RDU are connected to the server cabinet through a rubber hose, and CDU is connected to RDU through a metal bellows. The liquid is then distributed to the corresponding server cabinet (ie the above cabinet) through RDU. CDU and RDU are arranged on the elevated floor, and all pipelines are laid under the floor according to a certain level and fixed on the aluminum profile bracket.

[0137] For example, each supply and return branch pipe in the CDU and RDU is equipped with an electric valve, and the rubber hose is connected to the valve through a heavy-duty clamp and leads to the corresponding server cabinet, that is, a single cabinet is equipped with N-input and N-output supply / return branch pipes (when the number of CDUs N is 2, it is double-input and double-output). The electric valve can be quickly closed after receiving a command to isolate the server cabinet on this branch from the liquid cooling system.

[0138] In some embodiments, the cabinet includes a liquid supply port and a liquid outlet, and the system further includes a first connecting vessel and a second connecting vessel.

[0139] In some embodiments, the first communicating vessel is used to connect the liquid supply port of the cabinet and N liquid supply branch pipelines, and the N liquid supply branch pipelines include a liquid supply branch pipeline that connects each CDU in the N CDUs to the cabinet respectively.

[0140] For example, when the number N of CDUs is 2, the structure of the first communicating vessel is as follows: Figure 8 As shown. For example, the Figure 8 The connecting vessel 800 shown is used to merge two liquid supply branch pipelines into one liquid inlet pipeline connected to the liquid supply port.

[0141] In some embodiments, the second communicating vessel is used to connect the liquid outlet of the cabinet and N liquid return branch pipelines, and the N liquid return branch pipelines include a liquid return branch pipeline that connects each CDU in the N CDUs to the cabinet respectively.

[0142] For example, when the number N of CDUs is 2, the structure of the second communicating vessel is as follows: Figure 8 As shown. For example, the Figure 8 The connecting vessel 800 shown is also used to divide a liquid outlet pipeline connected to the liquid outlet into two pipelines, which are respectively connected to two liquid return branch pipelines.

[0143] Exemplarily, when N is 2, the first communicating vessel or the second communicating vessel is a tee.

[0144] For example, two liquid supply branches are connected to the liquid supply port of the cabinet's Manifold (cabinet water distribution unit) after being joined through a tee, and the same is true for the liquid return branch. Figure 8 As shown, the supply / return liquid branch pipe and the three-way are connected by an interlocking ball valve 810, which has the function of rapid closing and separation and prevents liquid leakage.

[0145] In some embodiments, the system further comprises a fluid insufflation port and a water tank, the water tank is in communication with the CDU, and the fluid insufflation port is in communication with the CDU.

[0146] In case of regular water replenishment, the replenishment port is used for an external water replenishment system to replenish the first cooling medium for the water tank.

[0147] In case of system leakage, the refill port is used for the external water replenishment system to replenish the primary cooling medium for the CDU.

[0148] In some embodiments, the pipeline of the external liquid supply system (i.e., the external water replenishment system) is connected to the quick liquid replenishment port (i.e., the liquid replenishment port) and maintains a certain working pressure of more than 200Kpa. The working fluid (i.e., the first cooling medium) flows through the solenoid valve and the one-way valve, and when the system pressure is lower than the pressure threshold (such as 0.3bar), the system is replenished with liquid. Otherwise, only the water tank is replenished with water. When the system pressure is lower than the pressure threshold, it is considered to be a system leakage, and the CDU is replenished directly. When the system pressure is higher than the pressure threshold, it is considered to be regular water replenishment, and the water tank is replenished with liquid.

[0149] For example, Fig. 9 , which is a schematic diagram of the internal water replenishment system included in the cooling system of the present application. The internal water replenishment system includes a quick liquid replenishment port 910 (also known as a liquid replenishment port), a first solenoid valve 930 and a one-way valve 940. The internal water replenishment system is connected to the CDU, Fig. 9 Not fully shown.

[0150] In some embodiments, when the control system determines that the system needs to be replenished, the solenoid valve is quickly opened, and the external liquid supply system replenishes the working fluid into the system. Fig. 9 As shown, the first solenoid valve 930 is opened quickly, and the external liquid supply system replenishes the working fluid into the system.

[0151] In some embodiments, if the pressure of the external liquid supply system is lower than the internal pressure of the system + the opening pressure of the one-way valve, the one-way valve is closed and the working fluid in the system cannot flow back. Fig. 9 As shown, the one-way valve 940 is closed, and the working fluid inside the system cannot flow back.

[0152] When the first cooling medium in the water tank has not been replaced for a period exceeding a first threshold, the refill port is used for an external water refill system to replace the first cooling medium in the water tank, and the water tank is used to store the first cooling medium for the CDU. The first cooling medium is the cooling medium required by the CDU to provide liquid cooling for multiple cabinets.

[0153] In some embodiments, when the liquid medium in the water tank is stored for a first threshold time (settable), the system will automatically open the quick refill port, close the solenoid valve, open the solenoid valve above the water tank to inject fresh liquid medium into the water tank, and open the drain port (automatic valve) below the water tank to discharge the stationary medium. After the replacement is completed, the quick refill port and the drain port are closed. In this way, the water quality deterioration caused by stagnant water in the water tank is prevented. For example, Fig. 9 As shown, close the first solenoid valve 930, open the second solenoid valve 950 above the water tank to inject fresh liquid working medium into the water tank 920, and open the drain port (automatic valve) below the water tank 920 to discharge the stationary working medium. After the replacement is completed, close the quick liquid replenishment port 910 and close the drain port.

[0154] In some embodiments, the system further comprises at least one of the following: a liquid receiving tray, a water retaining baffle.

[0155] The liquid collection tray is used to collect the first cooling medium leaked from the cabinet. The first cooling medium is the cooling medium required by the CDU to provide liquid cooling for the cabinet, such as water, Freon or other cooling medium. For example, if a server (cabinet) leaks, the liquid collection tray is responsible for collecting the leaked liquid and guiding it to the liquid collection tray under the cabinet, which can effectively prevent the leaking server from interfering with the normally operating servers below.

[0156] The water retaining baffle is used to shield the cabinet to prevent the first cooling medium from splashing on the cabinet. Exemplarily, a Manifold water retaining baffle is configured to prevent splashing on the server when the Manifold quick connector fails.

[0157] In some embodiments, the cabinet is equipped with a cable management rack, which is used to place the network cables of the cabinet to achieve front network access. Exemplarily, the cabinet supports front network access, and the cabinet has a 100mm deep cable management rack. Exemplarily, the cabinet is equipped with a cable management rack, which allows the network cables of the cabinet to be inside the cable management rack, so it is a cabinet that supports front network access. Front network access means that the network cables are in front of the cabinet. In the related art, the network cables need to be wrapped around the back of the cabinet, which is the rear network access. The technical solution provided in the embodiment of the present application allows the network card of the network switch to be placed in front and installed on the front side of the cold channel. Compared with the tail installation position in the related art, the temperature is lower, which reduces the cost of the network card. In addition, the network wiring is more reasonable, avoiding front and back crossing, reducing wiring costs, and being more friendly to operation and maintenance.

[0158] In other embodiments, the cabinet depth is 1400 mm to support longer server deployments.

[0159] For example, Fig.10 As shown, the left side view of the liquid cooling cabinet is Fig.10 (a) The right side view of the liquid cooling cabinet is Fig.10 (b) The three-dimensional image of the liquid cooling cabinet is Fig.10 (c). For example, Fig.11 Shown is a schematic diagram of the configuration scheme of the liquid cooling cabinet.

[0160] In some embodiments, the system further comprises an anti-spraying device, the anti-spraying device comprises a mounting seat, a blocking member and a protective cover, and the anti-spraying device is arranged in at least one of the following: a liquid supply main line and a liquid return main line.

[0161] The anti-spray device provided in the present application is installed on the main pipe of the liquid cooling cabinet, and the main pipe of the liquid cooling cabinet is divided into a liquid supply main pipe and a liquid return main pipe, that is, the anti-spray device provided in the present application can be installed on the liquid supply main pipe, and the anti-spray device provided in the present application can also be installed on the liquid return main pipe. Furthermore, the anti-spray device provided in the present application is mainly divided into two types of movement: translation and rotation. Fig.12 shown.

[0162] Exemplarily, the main liquid supply line and the main liquid return line are respectively arranged in a vertically installed manner in the liquid cooling cabinet, and the main liquid supply line and the main liquid return line respectively include a tube body and a plurality of male end connectors arranged at intervals on the tube body (the male end connector has a self-sealing function, that is, the male end connector is separated from the female end connector, and the male end connector can cut off its own flow channel with the cooperation of the movable valve core and the sealing structure inside it). The tube body can be used to connect the external liquid cooling pipeline to form a complete liquid cooling circulation loop, and the male end connector can be used to connect the female end connector of the aforementioned branch pipeline. The function of the main liquid supply line is to divert the low-temperature coolant transported from the external liquid cooling pipeline to each branch pipeline, and the branch pipeline transports the low-temperature coolant to the liquid cooling terminal (such as a cold plate) that dissipates heat for the equipment (such as a server) to meet the continuous heat dissipation requirements of the equipment. The function of the main liquid return line is to collect the high-temperature coolant flowing out of each liquid cooling terminal and transport it to the external liquid cooling pipeline to realize the return of water to the liquid cooling system.

[0163] Exemplarily, the anti-spraying device is arranged in the main liquid supply line. Exemplarily, the anti-spraying device is arranged in the main liquid return line.

[0164] In some embodiments, the mounting seat is used to be mounted on the male end interface of the main pipeline. In some embodiments, the blocking member is used to form a sealed space for the male end interface with the mounting seat and the protective cover. In some embodiments, the protective cover is used to expose the male end interface after rotation so as to communicate with the female end interface of the branch pipeline. In some embodiments, the main pipeline is a liquid supply main pipeline or a liquid return main pipeline. When the main pipeline is a liquid supply main pipeline, the branch pipeline is a liquid supply branch pipeline. When the main pipeline is a liquid return main pipeline, the branch pipeline is a liquid return branch pipeline.

[0165] Exemplarily, the anti-spray device includes three parts: a mounting seat, a blocking member and a protective cover. Fig.13a FIG. 1 is a schematic diagram of an anti-spraying device provided by another embodiment of the present application. Fig.13b In the figure, there is an anti-spray device 1310. The mounting seat and the blocking member move in a translational form, and the blocking member and the protective cover move in a rotational form. The mounting seat is installed on a corresponding male end connector on the tube body in a sleeve installation manner, and the mounting seat can be fixedly connected to the tube body to prevent the mounting seat from swinging and shifting. The mounting seat includes a water receiving portion and a sliding portion, the sliding portion is sleeved on the male end connector, and the sliding portion is provided with sliders on opposite sides of the male end connector. The extension direction of the slider is consistent with the height extension direction of the tube body (the tube body is placed vertically), the water receiving portion is connected to the sliding portion, and the water receiving portion is located below the male end connector. The blocking member is a semi-enclosed structure, such as Fig.13a The left and right sides and the front side of the blocking member are closed and the top, bottom and rear side are open. The top of the blocking member is closed by a protective cover, so that the liquid blocked by the blocking member can be prevented from flying out from the top of the blocking member and splashing onto the equipment in the liquid cooling cabinet. Fig.13a As shown, the blocking member is provided with a slide groove used in conjunction with the above-mentioned slider, so that the blocking member and the sliding part can be slidably connected through the slide groove and the slider, and then the blocking member can realize reciprocating motion on the sliding part in a sliding manner. And the blocking member is connected to the mounting seat through a tension spring to form a closed space with the sliding part and the water receiving part to cover the male end connector to prevent liquid from being sprayed from the male end connector onto the server device. At the same time, the top protective cover can be rotated left and right through the torsion spring to expose the top opening and expose the male end connector, so that the female end connector of the branch pipeline can be plugged into the male end connector to realize fluid conduction of the pipeline. Among them, the water receiving part is provided with a water receiving trough and a water guide member, the water receiving trough is used to temporarily store the liquid sprayed from the male end connector blocked by the blocking member, and the water guide member is connected to the water receiving trough to discharge the liquid temporarily stored in the water receiving trough to avoid overflow of the water receiving trough.

[0166] In some embodiments, a cabinet is equipped with two CDUs, each CDU corresponds to a cold source, and each cold source corresponds to a cabinet. This structure is considered to be a 2N architecture, and the CDU corresponds to the integrated cold source one by one. In this case, the CDU is considered to be a single-pump design, and only the redundancy of the system is considered, that is, when the water pump of the CDU fails and needs to be repaired, the CDU needs to be completely shut down, and the system becomes cold standby operation. In other embodiments, when the CDU is a dual-pump, that is, when one water pump fails and needs to be repaired, the other water pump will take over the work, so that the CDU does not need to be completely shut down, and the impact on the system is reduced.

[0167] In some embodiments, the heat exchange component in the CDU uses a 3-fluid heat exchanger instead of a 2-fluid heat exchanger. Exemplarily, the heat exchange component of the CDU is a 2-fluid heat exchanger, that is, the secondary side circulating water is heat exchanged with one primary side circulating water. Exemplarily, when the heat exchange component in the CDU uses a 3-fluid heat exchanger, that is, the secondary side circulating water is heat exchanged with two primary side circulating waters at the same time, this solution can make the CDU become a one-to-many mode to achieve the following N+1, N+2 or cross-corresponding architecture mode.

[0168] In some embodiments, the cooling system adopts N+1, N+2 or cross-corresponding architecture. Exemplarily, the CDU system is a 2N configuration. Although the redundancy is high, the initial investment is also high. With the upgrade of products, reliability and device quality, redundancy can be appropriately reduced to replace economic efficiency. Therefore, configuring N+1 or cross-corresponding architecture can achieve this goal. This solution aims to enable all CDUs to share an integrated cold source as a backup machine (N+1) or share each other's integrated cold source within the system (cross-corresponding architecture) through the CDU's 3-fluid heat exchanger. That is, one or more sets of cold sources are separately taken out as a common cold source for all CDUs, or a backup cold source.

[0169] In some embodiments, the CRU of the CDU is external. The internal supply and return pipeline design of the CDU can be arranged outside the CDU to replace the pipeline network. However, this solution will reduce the product attributes of the CDU and increase a certain amount of on-site engineering.

[0170] In some embodiments, one integrated cooling source is connected to one wind wall or N wind walls. For example, the primary-side integrated cooling source is connected to two wind walls, and the computer room can flexibly configure different numbers of wind walls according to different air cooling ratio requirements.

[0171] The heat dissipation capacity of liquid cooling in the cooling system provided in the embodiment of the present application can reach 10000 W / m2K, which is 50 to 1000 times that of air cooling (10~200 W / m2K). Therefore, under the same heat dissipation power, the use of liquid cooling can also make the chip reach a lower temperature, so that the chip can run at a higher frequency and output more computing power.

[0172] In addition, the cooling system proposed in this application has lower energy consumption and longer natural cooling time. Due to the significant improvement in heat dissipation efficiency, the infrastructure can abandon the compressor refrigeration mode widely used in air-cooled data centers in related technologies, so that the secondary side circulating water can directly exchange heat with the primary side. Based on the weather in x (dry bulb 36°C, wet bulb 32°C), the peak PUE (Power Usage Effectiveness, computer room energy consumption index) can be reduced from 1.40 of the air cooling system to 1.15, a decrease of 18%. The average annual PUE was reduced from 1.25 to 1.10, a decrease of 12%. Fig.16 The figure shows a comparison of the heat dissipation coefficients of air cooling and liquid cooling.

[0173] Furthermore, the cooling system proposed in this application increases IT output. Each T-BLOCK is equipped with 2500KVA of power resources. After calculation, the T-BLOCK using the liquid cooling system will produce 2000kW of IT capacity, which is 16% higher than the 1728kW of air cooling. This allows the computer room to be equipped with more servers with higher power.

[0174] Furthermore, the cooling system proposed in this application reduces the floor space occupied. Since the power density of the liquid-cooled server is greatly improved, the number of cabinets in a T-BLOCK is reduced from 192 to 88, and the floor space occupied by the computer room can be reduced by 20%.

[0175] Furthermore, the noise level of the cooling system proposed in this application is reduced. In the related art, the noise pollution of the air-cooled computer room can reach 90dbA, which poses a great threat to the health of operation and maintenance personnel. The noise level of the computer room using liquid cooling can be reduced to below 60dbA (the number of server fans is reduced, and the air cooling load of the computer room is reduced), which significantly improves the overall operation and maintenance environment.

[0176] In addition, the cooling system proposed in this application reduces the temperature of components and increases their lifespan. In the related art, the temperature of air-cooled server components is 10-20°C higher than that of liquid-cooled components, and components age quickly. After using a liquid cooling system, the aging speed can be slowed down, the probability of server failure can be reduced, and the lifespan can be extended.

[0177] Finally, the overall TCO (Total Cost Ownership) of the cooling system proposed in this application is reduced. Although the initial investment in liquid cooling infrastructure has increased (from 15,000 yuan / KWit for air cooling to 20,000 yuan / KWit), and the initial investment cost of a single module (1MW) has increased by about 58 million yuan, due to the additional output of IT and the reduction in energy consumption (the annual average PUE is reduced by 0.15, which can save about 4.6 million kWh of energy consumption in the infrastructure part, and roughly calculated at 0.6 yuan / kWh, it can reduce the electricity bill by about 2.8 million / year), considering the significant reduction in the investment cost of the server after removing the air cooling fan, the 5-year TCO of the liquid cooling system is expected to be reduced by about 10%.

[0178] In some embodiments, the cooling system is controlled based on the control method of the cooling system in the embodiment of the present application. The execution subject of the method is a computer device. Exemplarily, the computer device includes at least one of a terminal device and a server.

[0179] In some embodiments, the terminal device includes, but is not limited to, mobile phones, tablet computers, intelligent voice interaction devices, wearable devices, multimedia playback devices, PCs (Personal Computers), vehicle-mounted terminals, smart home appliances, controllers and other electronic devices. The client of the target application can be installed in the terminal device. Optionally, the target application can be an application that needs to be downloaded and installed, or it can be a point-and-click application, which is not limited in this embodiment of the present application. In an embodiment of the present application, the target application is an application for executing a control method for a cooling system, and the target application has a control function. Exemplarily, the target application can be a control application, such as a cabinet cooling control application, etc., which is not limited in this application.

[0180] The server is used to provide background services for the client of the target application in the terminal device. For example, the server can be an independent physical server, or a server cluster or distributed system composed of multiple physical servers, or a cloud server that provides basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communications, middleware services, domain name services, security services, CDN (Content Delivery Network), and big data and artificial intelligence platforms, but is not limited to these.

[0181] The terminal device and the server can communicate with each other through a network, which can be a wired network or a wireless network.

[0182] In the control method of the cooling system provided in the embodiment of the present application, the execution subject of each step may be a computer device, which refers to an electronic device with data calculation, processing and storage capabilities. The computer device may be a terminal device or a server.

[0183] Furthermore, the computer device mentioned in the embodiment of the present application includes a first computer device and a second computer device. That is, the control of the cooling system is completed by two computer devices. Exemplarily, the first computer device is used to control the primary side of the CDU, and the second computer device is used to control the secondary side of the CDU.

[0184] In some embodiments, the first computer device and the second computer device may be the same device or different devices.

[0185] In some embodiments, when the first computer device and the second computer device are the same device (referred to as computer device), the computer device may be a CDU in the above-mentioned cooling system, or be arranged in the CDU, or may be a cold source in the above-mentioned cooling system, or be arranged in the cold source.

[0186] In some embodiments, when the first computer device and the second computer device are different devices (referred to as computer devices), the first computer device may be a cold source in the above-mentioned cooling system, or be arranged in the cold source, and the second computer device may be a CDU in the above-mentioned cooling system, or be arranged in the CDU.

[0187] Please refer to Fig.14 , which shows a flow chart of a control method for a cooling system provided by an embodiment of the present application, wherein the system includes multiple cooling sources, multiple cabinets, multiple wind walls, and N CDUs, where N is a positive integer greater than 1. The execution subject of the method may be the computer device described above. The method may include at least one of the following steps (1410-1430).

[0188] Step 1410, controlling multiple cold sources to provide a second cooling medium for wind walls respectively connected to the multiple cold sources, the wind walls being used to provide air cooling for the cabinet.

[0189] Exemplarily, the cooling medium in the circulation pipeline inside the primary side of the CDU is the second cooling medium, such as water, Freon, etc. Exemplarily, the valve for opening the cold source to supply cooling to the wind wall is controlled to provide the second cooling medium for the wind wall connected to multiple cold sources respectively.

[0190] For technical details not mentioned in the method of this application, please refer to the explanations of other embodiments in the context, and no further description will be given.

[0191] Step 1420: Control multiple cooling sources to provide a second cooling medium for the CDUs respectively connected to the multiple cooling sources.

[0192] Exemplarily, a valve for supplying cooling to the CDU through a cold source is controlled to be opened, so as to provide the second cooling medium to the CDUs respectively connected to the plurality of cold sources.

[0193] Step 1430: Control N CDUs to provide a first cooling medium to a plurality of cabinets respectively connected to each of the N CDUs through a supply and return pipeline, and a second cooling medium is used to cool the first cooling medium through the CDU, the supply and return pipeline is a pipeline used to realize liquid supply and liquid return to the cabinet, and the CDU is used to provide liquid cooling for the cabinet. Exemplarily, the first cooling medium and the second cooling medium are the same or different cooling media.

[0194] Exemplarily, the cooling medium in the circulation pipeline inside the secondary side of the CDU is a first cooling medium, such as water, Freon, etc.

[0195] Exemplarily, a valve for the CDU to supply cooling to the cabinet is controlled to be opened, so as to provide the first cooling medium to the cabinets respectively connected to the plurality of CDUs.

[0196] In some embodiments, when in the first mode, N CDUs are controlled to provide a first cooling medium to a plurality of cabinets respectively connected to each of the N CDUs through supply and return pipes.

[0197] Exemplarily, the first mode is the hot standby mode. This operating mode is the state when the system is running normally and stably. Taking N as 2 as an example, two CDUs supply cooling water to the terminal IT server at the same time, and the corresponding integrated cold sources (one CDU corresponds to one integrated cold source) are turned on normally. The cooling water converges under the cabinet through a three-way connector, and the two-way water supply is changed to one way to enter the manifold in the cabinet (manifold is the cabinet water distribution unit). The water inlet of the server is inserted into the quick-connect female connector on the manifold to complete the access of cooling water. After the server uses the cooling water, the hot water that comes out is changed from 1 way to 2 ways of return water according to the same principle (that is, entering the manifold and then passing through the three-way connector), and returns to their respective CDUs. During hot standby operation, the water supply of each cabinet is in a 2N redundant state (that is, at least two CDUs). That is, if one CDU suddenly fails, there is another CDU to ensure the operation of the system.

[0198] In some embodiments, in the second mode, a preset CDU among the N CDUs is controlled to provide a first cooling medium to a plurality of cabinets respectively connected to the preset CDU through a supply and return pipeline, and the first mode and the second mode are different modes. Exemplarily, the preset CDU is a pre-set CDU among the N CDUs, or a CDU other than the N CDUs.

[0199] For example, the second mode is the cold standby mode. This operation mode is the state of maintenance and abnormal operation, that is, only one CDU (the preset CDU) supplies cooling water to the terminal IT server, and the CDU under maintenance, shutdown, and abnormal operation does not participate in the secondary side water circulation (the corresponding valve is closed), and only one water line enters the three-way connector under the cabinet. At this time, the water supply of the cabinet has no redundancy.

[0200] In some embodiments, according to the cabinet type of each cabinet in multiple cabinets, a liquid supply branch pipeline for providing the first cooling medium to the cabinet is determined, and the liquid supply branch pipeline is used to connect with the cabinet, and the flow rate of the first cooling medium provided in different liquid supply branch pipelines is different.

[0201] Exemplarily, the cabinet type refers to the type of server installed in the cabinet. The cabinet in this application refers to a cabinet used to place a server. Exemplarily, cooling the cabinet can also be understood as cooling the server. Exemplarily, different types of servers have different heat dissipation conditions and different powers. Therefore, it is necessary to divide the cabinets according to the type of server. Cabinets where servers of the same type are located can be controlled together using the same liquid supply branch pipeline. This method can improve the cooling efficiency and improve the cooling accuracy.

[0202] Exemplarily, a flow regulating mechanism is set inside the CDU and RDU, and the server cabinets (that is, the above-mentioned multiple cabinets) can be divided into several partitions according to actual conditions, and independent liquid supply control can be performed to improve the flow uniformity between the server cabinets. Exemplarily, 2 CDUs are operated with 8 server cabinets. The 4 cabinets close to the CDU are the same type of servers with high power density, and the 4 cabinets far away from the CDU are another type of servers with low power density. Exemplarily, these 8 cabinets are divided into two zones, which are respectively connected to two different flow regulating mechanisms inside the CDU. Each regulating mechanism is equipped with a flow meter and a regulating valve, and real-time adjustment is performed according to the actual required flow of each group of cabinets. Exemplarily, these 8 cabinets are divided into two zones, which are respectively connected to two different liquid supply branch pipelines inside the CDU. Exemplarily, the liquid supply conditions of the liquid supply branch pipelines belonging to the same liquid supply branch pipeline are the same.

[0203] In some embodiments, N CDUs are connected to a plurality of cabinets via a pipe network, and the pipe network includes N pairs of liquid supply and return branch pipes from the N CDUs corresponding to each cabinet.

[0204] In some embodiments, based on N CDUs, pipe networks, and multiple cabinets, the leakage location of the system is determined. Fig.15 As shown, the leakage location of the system is at least one of the area inside the CDU (that is, there is a water leakage in a CDU), the cabinet area (that is, there is a water leakage in a cabinet), and the pipe network area.

[0205] Exemplarily, there is water leakage in the area of ​​the CDU. Exemplarily, for the nth CDU among the N CDUs, if at least two of the following conditions are met: the leakage rope of the nth CDU is soaked, the pressure value of the nth CDU is lower than the second threshold, the liquid level of the water tank connected to the nth CDU is lower than the third threshold, and the nth CDU starts external liquid replenishment, the leakage position of the system is determined to be the nth CDU, where n is a positive integer less than or equal to N.

[0206] The first one is to determine the leakage position of the system as the nth CDU when the leakage rope of the nth CDU is wet, the pressure value of the nth CDU is lower than the second threshold, and the liquid level of the water tank connected to the nth CDU is lower than the third threshold.

[0207] The second method is to determine the leakage position of the system as the nth CDU when the leakage rope of the nth CDU is wet, the pressure value of the nth CDU is lower than the second threshold, and the nth CDU starts external fluid replenishment.

[0208] The third type is to determine the leakage position of the system as the nth CDU when the leakage rope of the nth CDU is wet, the liquid level of the water tank connected to the nth CDU is lower than the third threshold, and the nth CDU starts external liquid replenishment.

[0209] The fourth type is to determine the leakage position of the system as the nth CDU when the leakage rope of the nth CDU is wet, the pressure value of the nth CDU is lower than the second threshold, the liquid level of the water tank connected to the nth CDU is lower than the third threshold, and the nth CDU starts external fluid replenishment.

[0210] Exemplarily, the cabinet area is leaking. Exemplarily, for the i-th cabinet among the multiple cabinets, when the leakage rope of the i-th cabinet is wetted, and at least one of the liquid supply pressure value of the i-th cabinet is lower than the fourth threshold value and the liquid return pressure value of the i-th cabinet is lower than the fifth threshold value is satisfied, the leakage position of the system is determined to be the i-th cabinet, where i is a positive integer.

[0211] The first one is to determine that the leakage position of the system is the i-th cabinet when the leakage rope of the i-th cabinet is wet and the liquid supply pressure value of the i-th cabinet is lower than the fourth threshold.

[0212] The second type is to determine that the leakage position of the system is the i-th cabinet when the leakage rope of the i-th cabinet is wet and the return liquid pressure value of the i-th cabinet is lower than the fifth threshold.

[0213] The third type is to determine that the leakage position of the system is the i-th cabinet when the leakage rope of the i-th cabinet is wet, the liquid supply pressure value of the i-th cabinet is lower than the fourth threshold, and the liquid return pressure value of the i-th cabinet is lower than the fifth threshold.

[0214] Exemplarily, the pipe network area is leaking. Exemplarily, when at least one of the following conditions is met: the leakage rope of the pipe network is wetted, the leakage rope of a cabinet among the multiple cabinets is wetted, and the cumulative liquid supply pressure value of a cabinet among the multiple cabinets is lower than a sixth threshold, the leakage location of the system is determined to be the pipe network.

[0215] The first one is to determine the leakage location of the system as the pipe network when the leakage rope of the pipe network and the leakage rope of the cabinet are soaked.

[0216] The second type is to determine that the leakage location of the system is the pipe network when the leakage rope of the pipe network is soaked and the accumulated liquid supply pressure value of a cabinet among multiple cabinets is lower than the sixth threshold.

[0217] The third type is to determine that the leakage location of the system is the pipeline network when the leakage rope of the pipeline network is wet, the leakage rope of a cabinet among multiple cabinets is wet, and the cumulative liquid supply pressure value of a cabinet among multiple cabinets is lower than the sixth threshold.

[0218] Exemplarily, the triggering logic of the accumulated liquid supply pressure value is to compare the pressure reduction rate of the liquid supply manifold or liquid return manifold of each cabinet, and the cabinet with the fastest pressure drop has a liquid leak.

[0219] For example, any of the first to sixth thresholds mentioned in this application is a preset value, and this application does not limit the specific value. Other thresholds are also preset in advance.

[0220] The following is an embodiment of the device of the present application, which can be used to execute the embodiment of the method of the present application. For details not disclosed in the embodiment of the device of the present application, please refer to the embodiment of the method of the present application.

[0221] Please refer to Fig.17 , which shows a block diagram of a control device for a cooling system provided by an embodiment of the present application, wherein the system includes multiple cooling sources, multiple cabinets, multiple wind walls, and N CDUs, where N is a positive integer greater than 1. Fig.17 As shown, the device 1700 may include: a first control module 1710 , a second control module 1720 and a third control module 1730 .

[0222] The first control module 1710 is used to control the multiple cold sources and provide a second cooling medium for the wind walls respectively connected to the multiple cold sources, and the wind walls are used to provide air cooling for the cabinet.

[0223] The second control module 1720 is used to control the multiple cold sources and provide the second cooling medium to the CDUs respectively connected to the multiple cold sources.

[0224] The third control module 1730 is used to control the N CDUs, and provide a first cooling medium to the multiple cabinets respectively connected to each of the N CDUs through supply and return pipelines, and the second cooling medium is used to cool the first cooling medium through the CDU. The supply and return pipelines are pipelines for realizing liquid supply and liquid return for the cabinets, and the CDU is used to provide liquid cooling for the cabinets.

[0225] In some embodiments, the third control module 1730 is used to control the N CDUs to provide the first cooling medium through the supply and return pipelines for the plurality of cabinets respectively connected to each of the N CDUs when in the first mode; or

[0226] In the second mode, a preset CDU among the N CDUs is controlled to provide the first cooling medium to the multiple cabinets respectively connected to the preset CDU through the supply and return pipelines, and the first mode and the second mode are different modes.

[0227] In some embodiments, the nth CDU among the N CDUs includes a heat exchange component, the supply and return pipeline includes a liquid supply main pipeline connected to one end of the heat exchange component and at least one liquid supply branch pipeline connected to the liquid supply main pipeline, and n is a positive integer less than or equal to N.

[0228] In some embodiments, the third control module 1730 is used to determine a liquid supply branch pipeline for providing the first cooling medium to each cabinet according to the cabinet type of each cabinet in the multiple cabinets, and the liquid supply branch pipeline is used to be connected to the cabinet, and the flow rate of the first cooling medium provided in different liquid supply branch pipelines is different.

[0229] In some embodiments, the N CDUs are connected to the multiple cabinets via a pipe network, and the pipe network includes N pairs of liquid supply and return branch pipes from the N CDUs corresponding to each cabinet.

[0230] In some embodiments, the third control module 1730 is used to determine the leakage location of the system based on the N CDUs, the pipe network, and the multiple cabinets.

[0231] In some embodiments, the third control module 1730 is used to determine, for the nth CDU among the N CDUs, that the leakage rope of the nth CDU is soaked, and that the pressure value of the nth CDU is lower than the second threshold, the liquid level of the water tank connected to the nth CDU is lower than the third threshold, and the nth CDU starts external liquid replenishment, to determine that the leakage location of the system is the nth CDU, where n is a positive integer less than or equal to N; or, for the i-th cabinet among the multiple cabinets, when the leakage rope of the nth CDU is wet, and the pressure value of the nth CDU is lower than the second threshold, the liquid level of the water tank connected to the nth CDU is lower than the third threshold, and the nth CDU starts external liquid replenishment. When the leakage rope of the ith cabinet is wetted, and at least one of the liquid supply pressure value of the ith cabinet is lower than the fourth threshold and the liquid return pressure value of the ith cabinet is lower than the fifth threshold, the leakage location of the system is determined to be the ith cabinet, where i is a positive integer; or, when the leakage rope of the pipeline network is wetted, and at least one of the leakage rope of a cabinet among the multiple cabinets is wetted and the cumulative liquid supply pressure value of a cabinet among the multiple cabinets is lower than the sixth threshold, the leakage location of the system is determined to be the pipeline network.

[0232] It should be noted that the device provided in the above embodiment, when implementing its functions, is only illustrated by the division of the above functional modules. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the content structure of the device is divided into different functional modules to complete all or part of the functions described above. In addition, the device and method embodiments provided in the above embodiment belong to the same concept, and the specific implementation process is detailed in the method embodiment, which will not be repeated here.

[0233] The present application also provides a computer device, which may be the above-mentioned computer device. The computer device includes: a processor and a memory, wherein a computer program is stored in the memory; the processor is used to execute the computer program in the memory to implement the control method of the cooling system provided by the above-mentioned method embodiments. In some embodiments, the computer device may also be referred to as a control device.

[0234] For example, Fig.18 It is a structural block diagram of a computer device provided by an exemplary embodiment of the present application.

[0235] Typically, the computer device 1800 includes a processor 1801 and a memory 1802 .

[0236] Processor 1801 may include one or more processing cores, such as a 4-core processor, an 8-core processor, etc. Processor 1801 may be implemented in at least one hardware form of digital signal processing (DSP), field-programmable gate array (FPGA), and programmable logic array (PLA). Processor 1801 may also include a main processor and a coprocessor. The main processor is a processor for processing data in the awake state, also known as a central processing unit (CPU); the coprocessor is a low-power processor for processing data in the standby state. In some embodiments, processor 1801 may be integrated with a graphics processing unit (GPU), which is responsible for rendering and drawing the content to be displayed on the display screen. In some embodiments, processor 1801 may also include an artificial intelligence (AI) processor, which is used to process computing operations related to machine learning.

[0237] The memory 1802 may include one or more computer-readable storage media, which may be non-transitory. The memory 1802 may also include a high-speed random access memory, and a non-volatile memory, such as one or more disk storage devices, flash memory storage devices. In some embodiments, the non-transitory computer-readable storage medium in the memory 1802 is used to store at least one instruction, which is used to be executed by the processor 1801 to implement the control method of the cooling system provided in the method embodiment of the present application.

[0238] In some embodiments, the computer device 1800 may also optionally include: an input interface 1803 and an output interface 1804. The processor 1801, the memory 1802, and the input interface 1803 and the output interface 1804 may be connected via a bus or a signal line. Each peripheral device may be connected to the input interface 1803 and the output interface 1804 via a bus, a signal line or a circuit board. The input interface 1803 and the output interface 1804 may be used to connect at least one peripheral device related to input / output (I / O) to the processor 1801 and the memory 1802. In some embodiments, the processor 1801, the memory 1802, the input interface 1803, and the output interface 1804 are integrated on the same chip or circuit board; in some other embodiments, any one or two of the processor 1801, the memory 1802, the input interface 1803, and the output interface 1804 may be implemented on a separate chip or circuit board, which is not limited in the embodiments of the present application.

[0239] Those skilled in the art will appreciate that the structure shown above does not constitute a limitation on the computer device 1800 , and may include more or fewer components than shown in the figure, or combine certain components, or adopt a different component arrangement.

[0240] In an exemplary embodiment, a computer-readable storage medium is also provided, in which a computer program is stored, and when the computer program is executed by a processor, the control method of the cooling system described above is implemented. Optionally, the computer-readable storage medium may include: ROM (Read-Only Memory), RAM (Random Access Memory), SSD (Solid State Drives) or an optical disk, etc. Among them, the random access memory may include ReRAM (Resistance Random Access Memory) and DRAM (Dynamic Random Access Memory).

[0241] In an exemplary embodiment, a computer program product is also provided, the computer program product comprising a computer program, the computer program being stored in a computer-readable storage medium. A processor of a computer device reads the computer program from the computer-readable storage medium, and the processor executes the computer program, so that the terminal device executes the control method of the cooling system.

[0242] It should be noted that the relevant data collection and processing in this application should be strictly in accordance with the requirements of relevant national laws and regulations when applied in examples, and the informed consent or separate consent of the personal information subject should be obtained, and subsequent data use and processing should be carried out within the scope of authorization of laws and regulations and the personal information subject.

[0243] It should be understood that the "multiple" mentioned in this article refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. In addition, the step numbers described in this article only illustrate a possible execution sequence between the steps. In some other embodiments, the above steps may not be executed in the order of the numbers, such as two steps with different numbers are executed at the same time, or two steps with different numbers are executed in the opposite order to the diagram. The embodiments of the present application are not limited to this.

[0244] The above description is only an exemplary embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A cooling system, characterized in that: The system includes multiple cold sources, multiple cabinets, multiple wind walls, and N CDUs, where N is a positive integer greater than 1; Each of the multiple cold sources is respectively connected to at least one of the multiple wind walls, different cold sources are connected to different wind walls, and the cold source is used to provide air cooling for the cabinet through the wind wall; Each of the multiple cold sources is respectively connected to at least one CDU among the N CDUs, and different cold sources are connected to the same or different CDUs, and the cold source is used to provide liquid cooling for the cabinet through the CDU; Each of the N CDUs is connected to the multiple cabinets respectively through supply and return pipelines, and the supply and return pipelines are pipelines used to realize liquid supply and liquid return for the cabinets. The liquid supply branch pipeline and liquid return branch pipeline in the nth CDU of the N CDUs respectively connected to the two ends of the same cabinet are a pair of supply and return liquid branch pipelines in the nth CDU, and each cabinet corresponds to N pairs of supply and return liquid branch pipelines from the N CDUs for providing liquid cooling for the cabinet, n is a positive integer less than or equal to N, and each pair of supply and return liquid branch pipelines is used for one CDU among the multiple CDUs to provide liquid cooling for one cabinet among the multiple cabinets separately. In the event that one of the N CDUs fails, the other CDUs among the N CDUs except the failed CDU are used to provide liquid cooling for the multiple cabinets.

2. The system according to claim 1, characterized in that For the nth CDU among the N CDUs, the nth CDU includes a heat exchange component, the supply and return pipeline includes a liquid supply main pipeline, at least one liquid supply branch pipeline, at least one liquid supply branch pipeline, a liquid return main pipeline, at least one liquid return branch pipeline, and at least one liquid return branch pipeline, the at least one liquid supply branch pipeline includes liquid supply branch pipelines corresponding to the at least one liquid supply branch pipeline, and the at least one liquid return branch pipeline includes liquid return branch pipelines corresponding to the at least one liquid return branch pipeline, and n is a positive integer less than or equal to N; One end of the heat exchange component is in communication with the main liquid supply line; The main liquid supply pipeline is connected to the at least one branch liquid supply pipeline, and each branch liquid supply pipeline in the at least one branch liquid supply pipeline is connected to the branch liquid supply pipeline corresponding to the branch liquid supply pipeline; One end of each of the plurality of cabinets is connected to one of the at least one liquid supply branch pipeline; The other end of the heat exchange component is in communication with the liquid return main line; The liquid return main pipeline is connected to the at least one liquid return branch pipeline respectively, and each liquid return branch pipeline in the at least one liquid return branch pipeline is connected to the liquid return branch pipeline corresponding to the liquid return branch pipeline respectively; The other end of each of the plurality of cabinets is connected to one of the at least one liquid return branch pipeline; The number of the liquid supply branch pipelines and the number of the liquid return branch pipelines in the nth CDU are respectively greater than or equal to the number of the cabinets.

3. The system according to claim 2, characterized in that The system further comprises a first control valve group, wherein the first control valve group is arranged in at least one of the following: the liquid supply branch pipeline, the liquid return branch pipeline; The first control valve group is used to control whether to provide liquid cooling for the cabinet connected to the liquid supply branch pipeline or the liquid return branch pipeline.

4. The system according to claim 2 or 3, characterized in that: The nth CDU further comprises: a redistribution liquid supply sub-pipeline in communication with the liquid supply main line, and a redistribution liquid return sub-pipeline in communication with the liquid return main line; The redistribution liquid supply branch pipeline is connected to one end of the distribution cabinet RDU, and the RDU is used to provide liquid cooling for other cabinets except the multiple cabinets; The redistribution liquid return sub-pipeline is communicated with the other end of the RDU.

5. The system according to claim 4, characterized in that The system further comprises a second control valve group, wherein the second control valve group is arranged in at least one of: the redistribution liquid supply sub-pipeline, the redistribution liquid return sub-pipeline; The second control valve group is used to control whether to enable the RDU to provide liquid cooling for the other cabinets.

6. The system according to claim 2 or 3, characterized in that: The liquid supply branch pipelines and the liquid return branch pipelines respectively included in the N CDUs form a pipeline network.

7. The system according to claim 2 or 3, characterized in that: The cabinet includes a liquid supply port and a liquid outlet, and the system also includes a first communicating vessel and a second communicating vessel; The first communicating vessel is used to connect the liquid supply port of the cabinet and N liquid supply branch pipelines, wherein the N liquid supply branch pipelines include a liquid supply branch pipeline respectively connected between each CDU in the N CDUs and the cabinet; The second communicating vessel is used to connect the liquid outlet of the cabinet and N liquid return branch pipelines, wherein the N liquid return branch pipelines include a liquid return branch pipeline respectively connecting each CDU in the N CDUs with the cabinet.

8. The system according to claim 2 or 3, characterized in that: The system further comprises an anti-spraying device, the anti-spraying device comprising a mounting seat, a blocking member and a protective cover, the anti-spraying device being arranged in at least one of the following: the main liquid supply line and the main liquid return line; The mounting seat is used to be mounted on the male end interface of the main pipeline; The blocking member is used to form a sealed space for the male end interface together with the mounting seat and the protective cover; The protective cover is used to expose the male end interface after rotation so as to communicate with the female end interface of the branch pipeline; Wherein, the main pipeline is the liquid supply main pipeline or the liquid return main pipeline. When the main pipeline is the liquid supply main pipeline, the branch pipeline is the liquid supply branch pipeline. When the main pipeline is the liquid return main pipeline, the branch pipeline is the liquid return branch pipeline.

9. The system according to any one of claims 1 to 3, characterized in that: The system further comprises at least one of the following: a liquid receiving tray, a water retaining baffle; The liquid receiving tray is used to collect the first cooling medium leaked from the cabinet, where the first cooling medium is the cooling medium required by the CDU to provide liquid cooling for the cabinet; The water-blocking baffle is used to shield the cabinet to prevent the first cooling medium from splashing on the cabinet.

10. The system according to any one of claims 1 to 3, characterized in that: The system further comprises a fluid inlet and a water tank, wherein the water tank is in communication with the CDU, and the fluid inlet is in communication with the CDU; In case of regular water replenishment, the liquid replenishment port is used for an external water replenishment system to replenish the first cooling medium for the water tank; or, In case of leakage in the system, the liquid replenishment port is used for an external water replenishment system to replenish the first cooling medium for the CDU; or, In the case where the first cooling medium in the water tank has not been replaced for a period exceeding a first threshold, the liquid replenishment port is used for an external water replenishment system to replace the first cooling medium in the water tank, and the water tank is used to store the first cooling medium for the CDU; The first cooling medium is the cooling medium required by the CDU to provide liquid cooling for the multiple cabinets.

11. The system according to any one of claims 1 to 3, characterized in that: The cabinet is equipped with a cable management rack, and the cable management rack is used to place the network cables of the cabinet to achieve front-end network cable outlet.

12. A method for controlling a cooling system, characterized in that: The system includes multiple cold sources, multiple cabinets, multiple wind walls, and N CDUs, where N is a positive integer greater than 1. The method includes: Controlling the multiple cold sources to provide a second cooling medium for wind walls respectively connected to the multiple cold sources, wherein the wind walls are used to provide air cooling for the cabinet; Controlling the plurality of cold sources to provide the second cooling medium to the CDUs respectively connected to the plurality of cold sources; Control the N CDUs, provide a first cooling medium to the multiple cabinets respectively connected to each CDU in the N CDUs through supply and return pipelines, the second cooling medium is used to cool the first cooling medium through the CDU, the supply and return pipelines are pipelines used to realize liquid supply and liquid return for the cabinets, the CDU is used to provide liquid cooling for the cabinets, the liquid supply branch pipeline and liquid return branch pipeline in the nth CDU of the N CDUs respectively connected to the two ends of the same cabinet are a pair of liquid supply and return branch pipelines in the nth CDU, each cabinet corresponds to N pairs of liquid supply and return branch pipelines from the N CDUs for providing liquid cooling for the cabinet, n is a positive integer less than or equal to N, each pair of liquid supply and return branch pipelines is used for one CDU among the multiple CDUs to separately cool one cabinet among the multiple cabinets, and in the event that one CDU among the N CDUs fails, the other CDUs among the N CDUs except the failed CDU are used to provide liquid cooling for the multiple cabinets.

13. The method according to claim 12, characterized in that The controlling the N CDUs to provide the first cooling medium to the plurality of cabinets respectively connected to each of the N CDUs through a supply and return pipeline includes: In the case of being in the first mode, controlling the N CDUs to provide the first cooling medium to the plurality of cabinets respectively connected to each of the N CDUs through the supply and return pipelines; or, In the second mode, a preset CDU among the N CDUs is controlled to provide the first cooling medium to the multiple cabinets respectively connected to the preset CDU through the supply and return pipelines, and the first mode and the second mode are different modes.

14. The method according to claim 12 or 13, characterized in that The nth CDU of the N CDUs includes a heat exchange assembly, the supply and return pipeline includes a liquid supply main pipeline connected to one end of the heat exchange assembly and at least one liquid supply branch pipeline connected to the liquid supply main pipeline, n is a positive integer less than or equal to N, and the method further includes: According to the cabinet type of each cabinet in the multiple cabinets, a liquid supply branch pipeline for providing the first cooling medium to the cabinet is determined, and the liquid supply branch pipeline is used to connect with the cabinet, and the flow rate of the first cooling medium provided in different liquid supply branch pipelines is different.

15. The method according to claim 12 or 13, characterized in that The N CDUs are connected to the plurality of cabinets via a pipe network, wherein the pipe network includes N pairs of liquid supply and return branch pipes from the N CDUs corresponding to each cabinet, and the method further includes: A liquid leakage location of the system is determined based on the N CDUs, the pipe network, and the plurality of cabinets.

16. The method according to claim 15, characterized in that The determining the leakage location of the system based on the N CDUs, the pipe network, and the plurality of cabinets includes: For the nth CDU among the N CDUs, if at least two of the following conditions are met: the leakage rope of the nth CDU is wet, the pressure value of the nth CDU is lower than the second threshold, the liquid level of the water tank connected to the nth CDU is lower than the third threshold, and the nth CDU starts external liquid replenishment, the leakage position of the system is determined to be the nth CDU, where n is a positive integer less than or equal to N; or, For the i-th cabinet among the multiple cabinets, if the leakage rope of the i-th cabinet is wet, and at least one of the liquid supply pressure value of the i-th cabinet is lower than the fourth threshold value and the liquid return pressure value of the i-th cabinet is lower than the fifth threshold value is satisfied, the leakage position of the system is determined to be the i-th cabinet, where i is a positive integer; or, When the leakage rope of the pipe network is wetted, the leakage rope of a cabinet among the multiple cabinets is wetted, and the accumulated liquid supply pressure value of a cabinet among the multiple cabinets is lower than at least one of the sixth threshold values, the leakage location of the system is determined to be the pipe network.

17. A control device for a cooling system, characterized in that: The system includes multiple cold sources, multiple cabinets, multiple wind walls, and N CDUs, where N is a positive integer greater than 1. The device includes: A first control module, used for controlling the plurality of cold sources, and providing a second cooling medium for wind walls respectively connected to the plurality of cold sources, wherein the wind walls are used for providing air cooling for the cabinet; A second control module, used for controlling the plurality of cold sources to provide the second cooling medium to the CDUs respectively connected to the plurality of cold sources; The third control module is used to control the N CDUs, and provide a first cooling medium to the multiple cabinets respectively connected to each CDU in the N CDUs through supply and return pipelines, and the second cooling medium is used to cool the first cooling medium through the CDU. The supply and return pipelines are pipelines used to realize liquid supply and liquid return for the cabinets. The CDU is used to provide liquid cooling for the cabinets. The liquid supply branch pipeline and liquid return branch pipeline in the nth CDU of the N CDUs respectively connected to the two ends of the same cabinet are a pair of supply and return liquid branch pipelines in the nth CDU. Each cabinet corresponds to N pairs of supply and return liquid branch pipelines from the N CDUs for providing liquid cooling for the cabinet, n is a positive integer less than or equal to N, and each pair of supply and return liquid branch pipelines is used for one CDU among the multiple CDUs to separately cool one of the multiple cabinets. In the event that one of the N CDUs fails, the other CDUs among the N CDUs except the failed CDU are used to provide liquid cooling for the multiple cabinets.

18. A computer device, characterized in that: The computer device includes a processor and a memory, wherein a computer program is stored in the memory, and the computer program is loaded and executed by the processor to implement the control method of the cooling system according to any one of claims 12 to 16.

19. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and the computer program is loaded and executed by a processor to implement the control method of the cooling system according to any one of claims 12 to 16.

20. A computer program product, characterized in that The computer program product comprises a computer program, and the computer program is loaded and executed by a processor to implement the control method of the cooling system according to any one of claims 12 to 16.

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