Ring network cooling device, method for linkage control of ring network cooling device and data center

Abstract

This disclosure relates to a ring network cooling device configured to cool equipment in a data center on the secondary side of a liquid cooling system. The ring network cooling device includes a first ring network serving as a primary ring network, divided into multiple working sections. Each working section is configured to cool corresponding equipment. The device also includes a second ring network serving as a backup ring network, configured to continue cooling the corresponding equipment in place of one or more working sections of the first ring network when one or more of those sections are affected by a fault. The affected working sections of the first ring network are deactivated. This disclosure also relates to a method for coordinated control of the ring network cooling device and a data center.

Description

Technical Field

[0001] This disclosure relates to the field of cooling technology, and more specifically to a ring network cooling device, a method for linkage control of the ring network cooling device, and a data center. Background Technology

[0002] With the rapid development of the Internet, cloud computing, and big data, the demand for data centers is constantly increasing.

[0003] Liquid cooling technology, as an energy-saving technology highly compatible with data centers, is leading the trend in data center development and construction. However, unlike traditional data center cooling technologies, liquid cooling systems suffer from a serious "single point of failure" problem in the water supply link when supplying cooling to the end-server racks: the water supply link from the secondary ring network -> manifold -> server is a single-path water supply. When a leak occurs at any point in the secondary ring network, manifold, or the pipeline from the ring network to the manifold on the rack side, the water path of that rack needs to be isolated, resulting in an undesirable cooling interruption. This necessitates interrupting or prematurely transferring IT services, such as transferring running data to servers in other racks, posing a significant challenge to the business continuity of the data center.

[0004] Regarding liquid cooling systems for data centers, several solutions are known from existing technologies.

[0005] Chinese patent application CN220798864U discloses a cooling system for a data center, the data center including a liquid-cooled server; wherein, the cooling system includes a liquid cooling system and an air-cooled system; the liquid cooling system includes a compressor, a first cooler, and a plate heat exchanger forming a refrigerant circulation loop; the plate heat exchanger includes a first branch and a second branch, the first branch for circulating refrigerant; the second branch for circulating coolant, and the second branch is connected to the liquid-cooled plate of the liquid-cooled server; the air-cooled system includes a second cooler forming a refrigerant circulation loop, a refrigerant driving device, a throttling device, and an evaporator; the inlet of the second cooler is connected to the outlet of the first branch of the plate heat exchanger.

[0006] Chinese patent application CN118158983A discloses a novel liquid cooling system for data centers based on phase change fluids. The system includes: a primary phase change fluid circulation subsystem, a secondary phase change fluid circulation subsystem, and a heat exchange device located between them; the secondary phase change fluid circulation subsystem exchanges heat with the servers in the data center; the primary and secondary phase change fluid circulation subsystems exchange heat through the heat exchange device; the primary phase change fluid circulation subsystem exchanges heat with the external environment through a cooling tower; and the primary and secondary phase change fluid circulation subsystems are respectively equipped with a primary-side disperser and a secondary-side disperser for online dispersion of the phase change fluid.

[0007] International patent application WO2024149390A1 discloses an immersion liquid cooling system, which includes a liquid cooling device and a refrigeration device, which exchange heat through a heat exchanger. The liquid cooling device includes a liquid cooling cabinet and a cooling capacity distribution unit. The cooling capacity distribution unit includes a heat exchanger and a liquid cooling circulation pump. A first medium outlet of the heat exchanger is connected to the liquid inlet of the liquid cooling cabinet, and a first medium inlet of the heat exchanger is connected to the liquid return outlet of the liquid cooling cabinet. The liquid cooling circulation pump is connected in series between the heat exchanger and the liquid cooling cabinet. The refrigeration device includes a refrigeration circulation pump, a condenser, a throttling device, and a compressor connected in parallel with the refrigeration circulation pump, connected in series between a second medium outlet and a second medium inlet of the heat exchanger. Either the compressor or the refrigeration circulation pump can be operated selectively. Summary of the Invention

[0008] The purpose of this disclosure is to provide a ring network cooling device that increases the operational reliability of data center liquid cooling systems through redundant design. Furthermore, this ring network cooling device provides emergency personnel with a convenient and reliable emergency response solution during operational contingencies.

[0009] Another object of this disclosure is to provide a method for linkage control of a ring network cooling device and a data center including the ring network cooling device.

[0010] The first aspect of this disclosure relates to a ring network cooling device configured to cool equipment in a data center on the secondary side of a liquid cooling system. The ring network cooling device includes a first ring network serving as a primary ring network, divided into multiple working sections. Each working section is configured to cool corresponding equipment. The device further includes a second ring network serving as a backup ring network, configured to continue cooling the corresponding equipment in place of one or more working sections of the first ring network when one or more working sections of the first ring network are affected by a fault. The affected working sections of the first ring network are deactivated.

[0011] Existing data center liquid cooling systems employ a single-path water supply architecture on the cooling link from the secondary ring network to the servers, posing a risk of service interruption due to lack of redundancy in extreme scenarios. In this disclosure, when one or more working sections of the first ring network, such as a section or multiple pipelines, are affected by a fault, such as a leak, a second ring network can be used to replace the affected working section. Furthermore, the affected working section of the first ring network can be shut down and isolated from other normally functioning working sections. The design scheme of this disclosure provides an additional second ring network in addition to the first ring network, thereby achieving dual-path coolant supply and increasing the operational reliability of the liquid cooling system. The technical solution according to this disclosure provides a richer and more reliable handling solution for liquid cooling emergency situations in extreme scenarios. It should be noted that in this disclosure, a fault in a working section can be caused by a specific event at that working section that reduces its cooling capacity to the point that it cannot meet the cooling requirements of the equipment to be cooled; this specific event can be a leak, blockage, etc.

[0012] In some implementations, each working section may be associated with multiple devices to be cooled and may be configured to cool the multiple devices to be cooled. Thus, when one or more working sections are affected by a fault, a second ring network may take over from the affected working section to continue cooling the multiple devices associated with the working section.

[0013] In some embodiments, a first isolation device is provided on the first ring network. The first isolation device is arranged such that it is located at both ends or sides of each working section. When a working section is affected by a fault, the first isolation device associated with the affected working section can be closed to deactivate the affected working section and thereby isolate it from the remaining normal working sections of the first ring network. Here, each working section is separated from the others by a corresponding first isolation device. Therefore, instead of providing a separate first isolation device for each piece of equipment to be cooled, as in the prior art, only a corresponding first isolation device needs to be provided for each working section. When each working section is associated with multiple pieces of equipment to be cooled, as described above, the number of first isolation devices can be significantly reduced compared to the case without a second ring network as disclosed herein. For example, if each working section is associated with five pieces of equipment to be cooled, the number of first isolation devices can be greatly reduced. The first isolation device can be configured, for example, as an isolation valve, especially a manual isolation valve. Since the isolation valve itself is a risk point that can cause ring network leakage and other faults, the multi-equipment double isolation device isolation architecture implemented by the technical solution disclosed in this paper also effectively increases the operational stability of the first ring network, thereby increasing the overall operational stability of the entire system.

[0014] In some implementations, the piping of the first ring network and the piping of the second ring network differ in terms of piping geometry and / or materials. Since the second ring network may only meet the operational capacity of the affected sections, such as cooling performance, it can be designed to be less capable than the first ring network. For example, the piping of the first ring network may employ different piping geometries and / or materials than that of the second ring network. This allows for reduced costs and / or increased design possibilities for the second ring network to meet different cost and / or design requirements.

[0015] In some implementations, the pipe diameter of the second ring network is smaller than that of the first ring network. This reduces the cost of the second ring network and accommodates different space requirements. Because the pipe diameter of the second ring network is smaller, and thus the pipes can be constructed more finely, the second ring network can be placed in locations with limited installation space, or in other words, requires less installation space. Therefore, flexible layout of the second ring network is possible.

[0016] In some implementations, the pipe diameter of the second ring network is determined based on the number of devices to be cooled corresponding to the working section. Therefore, the pipe diameter of the second ring network can be designed according to actual needs, thereby avoiding performance waste or enabling a dedicated design specific to the number of devices.

[0017] In some embodiments, the pipe diameter of the second ring network can be determined such that it meets the flow rate and / or resistance requirements of the corresponding equipment to be cooled, which are compatible with at least two working sections of the first ring network. Thus, the pipe diameter of the second ring network can have operating performance matching that of at least two working sections of the first ring network. When a fault such as a leak occurs in the first isolation device between two working sections, causing damage to the operating performance of the two adjacent working sections, the second ring network can immediately take over the operation of these two working sections, while the pipe diameter of the second ring network can simultaneously meet the flow rate and / or resistance requirements of the corresponding equipment to be cooled, which are compatible with these two working sections.

[0018] In some embodiments, a flow-diverting or flow-collecting device can be installed on the equipment to be cooled. This device can divert the flow to the equipment during incoming flow or collect the flow during return flow. The flow-diverting or flow-collecting device is fluidly connected to a first and second ring network in a disconnectable manner, allowing it to isolate the supply and return flow from the first or second ring network to the equipment as needed. Thus, the flow-diverting or flow-collecting device can achieve bilateral isolation for both the first and second ring networks, unlike traditional single-sided isolation. When a leak occurs in the piping on one side of the flow-diverting or flow-collecting device, such as the piping of the first ring network, the first ring network can be isolated, and the coolant supply can continue through the piping on the other side, such as the piping of the second ring network, unaffected by the leaking side.

[0019] In some embodiments, the diversion or collection device may be provided with a corresponding second isolation device at the corresponding connection part that communicates with the first ring network or the second ring network, so that the fluid connection between the diversion or collection device and the first ring network or the second ring network can be isolated by the corresponding second isolation device.

[0020] In some embodiments, the corresponding second partition device may be configured as one of the following:

[0021] A separate isolation valve that can be connected to a flow divider or flow combiner;

[0022] The built-in isolation valve can be integrated into the diversion or collection device.

[0023] Quick connectors allow for isolation by pulling out the quick connector;

[0024] Interlocking ball valves can achieve isolation by separating the interlocking ball valve. Therefore, different interface types and isolation valve combinations can be used to achieve the bilateral isolation function of flow diversion or combination devices, depending on the requirements.

[0025] In some embodiments, the combination of the second isolation device on the first ring network side located at the connection portion communicating with the first ring network and the second isolation device on the second ring network side located at the connection portion communicating with the second ring network can take one of the following combinations:

[0026] The second isolation device on the first ring network side and the second isolation device on the second ring network side are both constructed as separate isolation valves;

[0027] The second isolation device on the first ring network side and the second isolation device on the second ring network side are both constructed as self-contained isolation valves.

[0028] The second isolation device on the first ring network side is constructed with a built-in isolation valve, while the second isolation device on the second ring network side is constructed with a quick connector.

[0029] The second isolation device on the first ring network side is constructed as an interlocking ball valve, while the second isolation device on the second ring network side is constructed as a quick connector.

[0030] The second isolation device on the first ring network side is constructed as an interlocked ball valve, while the second isolation device on the second ring network side is constructed as a self-contained isolation valve.

[0031] The second isolation device on the first ring network side and the second isolation device on the second ring network side are both constructed as quick connectors;

[0032] The second isolation device on the first ring network side is constructed as a quick connector, while the second isolation device on the second ring network side is constructed as a built-in isolation valve. Therefore, one of the preferred combinations of the second isolation devices described above can be used to achieve the bilateral isolation function of the diversion or collection device.

[0033] In some embodiments, the first and second ring networks may each include a supply ring network and a return ring network, and the ring network cooling device is equipped with a flow distribution unit configured for...

[0034] Traffic is directly distributed to the first ring network, and indirectly distributed to the second ring network via the first ring network; or

[0035] Traffic is directly distributed to the first and second ring networks. Therefore, the traffic distribution unit can be selectively configured to perform direct and indirect traffic distribution to the first and second ring networks according to actual needs.

[0036] In some embodiments, when the flow distribution unit is configured to directly distribute flow to the first ring network and indirectly distribute flow to the second ring network via the first ring network, a first connection structure for the supply and return mains of the supply and return ring networks in the second ring network is provided between the corresponding supply and return ring networks in the first ring network and the supply and return ring networks in the second ring network. Thus, the connection point of the supply and return mains of the second ring network can be located on the first ring network.

[0037] In some embodiments, the connection point of the first connection structure located on the first ring network is disposed between the flow distribution unit and the first isolation device of the first ring network closest to the flow distribution unit.

[0038] In some embodiments, a first switching device for connecting or disconnecting the first connection structure and / or a first regulating device for adjusting the flow rate of the first connection structure are provided on the first connection structure. Thus, a first switching device for connecting or disconnecting or a first regulating device for adjusting the flow rate can be provided between the first ring network and the second ring network as needed.

[0039] In some embodiments, the first adjusting device is disposed in a sub-connection structure within the first connection structure that connects the supply ring network of the first ring network and the supply ring network of the second ring network, and / or

[0040] The first switching device is disposed in a separate sub-connection structure within the first connection structure, which connects the return loops of the first and second ring networks. This allows for advantageous supply and return control between the first and second ring networks.

[0041] In some embodiments, when the flow distribution unit is configured to directly distribute flow to the first and second ring networks, the second connection structure of the supply and return mains for the supply and return ring networks in the second ring network can be configured as a bypass line of the flow distribution unit to the main line leading to the first ring network. This allows for an advantageous arrangement of the connection points of the supply and return mains for the supply and return ring networks in the second ring network within the flow distribution unit.

[0042] In some embodiments, a second switching device for connecting or disconnecting the second connection structure and / or a second regulating device for adjusting the flow rate of the second connection structure may be provided on the second connection structure. Thus, a second switching device for connecting or disconnecting or a second regulating device for adjusting the flow rate can be provided in the flow distribution unit as needed.

[0043] In some embodiments, the second regulating device is disposed in a sub-bypass pipe that connects the main supply pipe of the flow distribution unit and the supply loop network of the second loop network in a second connection structure configured as a bypass pipe, and / or

[0044] The second switching device is installed in a secondary bypass pipe within the second connection structure, which is configured as a bypass pipe, connecting the return main pipe of the flow distribution unit and the return ring network of the second ring network. This allows for advantageous supply and return control of the second ring network within the flow distribution unit.

[0045] In some embodiments, the flow distribution unit may include a pump device positioned downstream of the connection point between the additional sub-bypass line for return flow of the second connection structure and the main return flow line of the flow distribution unit, along the return flow direction. Thus, when a second switching device is provided in the additional sub-bypass line for return flow of the second connection structure, the pump device can be said to be directly downstream of the second switching device in the return flow direction, i.e., the second switching device is located on the inlet side of the pump device. Therefore, when the second switching device is opened, it is immediately in a fully open state, which ensures that the inlet pressure of the pump device remains stable, thereby maintaining normal operation of the pump device. If, for example, a second regulating device for adjusting flow rate is provided instead of a second switching device in the additional sub-bypass line for return flow of the second connection structure, a throttling effect can occur when the coolant flows through, for example, the second regulating device in a partially open state. This leads to unstable inlet pressure of the pump device. Therefore, by providing a second switching device in the additional sub-bypass line for return flow of the second connection structure, the operation of the pump device can be avoided, for example, due to the partially open state of the second regulating device.

[0046] In some embodiments, the corresponding first or second switching device can be configured as a solenoid valve, and the corresponding first or second regulating device can be configured as an electric regulating valve. This allows for advantageous configurations of the first or second switching device and the first or second regulating device.

[0047] The second aspect of this disclosure relates to a method for linkage control of a ring network cooling device, said ring network cooling device being a ring network cooling device according to any embodiment of this disclosure, wherein...

[0048] The second isolation device on the current splitter or current collector is linked to the first switching device and the first regulating device located between the first ring network and the second ring network for coordinated control; or

[0049] The second isolation device on the diversion or collection device is linked with the second switching device and the second regulating device in the bypass pipeline of the flow distribution unit for coordinated control.

[0050] In some embodiments, when the second isolation device connected to the second ring network on the current splitter or collector is opened, the first or second switching device is opened in conjunction with it, and the first or second regulating device is opened in stages. This allows for advantageous inflow control and loop control of the second ring network.

[0051] In some embodiments, the first or second regulating device is activated in stages according to the number of shunt or collector devices that are activated. This allows for advantageous control of the first or second regulating device.

[0052] A third aspect of this disclosure also relates to a data center including a ring network cooling device according to any embodiment of this disclosure.

[0053] The technical features mentioned above, those to be mentioned below, and those shown individually in the accompanying drawings can be combined arbitrarily, provided that the combined technical features are not contradictory. All feasible combinations of features are the technical content explicitly described herein. Any one of the multiple sub-features contained in the same statement can be applied independently, without necessarily being applied together with other sub-features. Attached Figure Description

[0054] The present disclosure will be further described below with reference to the illustrative drawings and exemplary embodiments. Wherein:

[0055] Figure 1 This is a schematic diagram of the architecture of a conventional ring network cooling device in existing technology.

[0056] Figure 2 This is a schematic diagram of the architecture of a ring network cooling device according to a first embodiment of the present disclosure.

[0057] Figure 3 This is a schematic diagram of different combinations of the flow distribution or flow collection devices of the ring network cooling device according to this disclosure;

[0058] Figure 4 This is a schematic diagram of the architecture of a ring network cooling device according to a second embodiment of the present disclosure.

[0059] Figure 5 yes Figure 4 A schematic diagram of the layout structure within the flow distribution unit of the ring network cooling device. Detailed Implementation

[0060] Figure 1This is a schematic diagram of a conventional ring network cooling device in the prior art. This conventional ring network cooling device contains only one first ring network 1, which consists of a supply ring network 11 and a return ring network 12. The conventional ring network cooling device also includes a flow distribution unit 8 for distributing flow to the ring network, a conventional flow splitting or combining device for splitting or combining the flow of the devices 6 to be cooled, and a first isolation device 5, particularly an isolation valve, configured to isolate the ring network for each device 6 to be cooled. Here, the conventional flow splitting or combining device can be configured as a conventional inlet flow splitter and a conventional return flow collector, depending on the inlet and outlet conditions.

[0061] In this document, the device 6 to be cooled can be a server rack. Of course, in other embodiments, the device 6 to be cooled can also be other equipment in a data center. When the device 6 to be cooled is a server rack... Figure 1 The conventional ring network cooling system's cabinet-isolation valve architecture can be referred to as a single-cabinet double-isolation valve system. Furthermore, such as... Figure 1 As shown, there are a relatively large number of isolation valves on the first ring network 1. Furthermore, in this paper, water can be used as the coolant for cooling the equipment. Of course, other forms of coolant, such as cooling oil, are also conceivable.

[0062] for Figure 1 The common failure modes of this type of ring network cooling device can be roughly categorized into the following two types:

[0063] - First type of failure: The isolation valve of the cabinet on the first ring network 1 malfunctions or there is a leak in the adjacent pipe; or

[0064] - The second type of failure: the pipes or their interfaces and valves at the back end of the ring network and the front end of the diversion or collection device 7 are faulty or leaking.

[0065] For both types of failures mentioned above, the isolation valves on both sides of the corresponding fault point must be closed before troubleshooting. Closing the isolation valves will affect at least one or two server racks (one or two is for...). Figure 1 The single-cabinet dual-valve isolation architecture shown (or a dual-cabinet isolation architecture, affecting 2 to 4 cabinets) is affected by water supply interruptions, leading to service disruptions. Therefore, in the case of a conventional ring network cooling system, a failure can cause service interruptions.

[0066] In addition, from Figure 1As can be clearly seen, in the conventional first ring network 1, to ensure the normal operation of the remaining parts when a part of the first ring network 1 is affected by a fault, a set of isolation valves is installed for each piece of equipment 6 to be cooled. These isolation valves are respectively arranged in the supply ring network 11 and the return ring network 12 of the first ring network 1. This results in a large number of isolation valves being arranged in the conventional first ring network 1. However, the isolation valves themselves are risk points that can cause ring network leaks and other faults. Figure 1 The first ring network 1 of this conventional ring network cooling device has low operational stability.

[0067] To address the aforementioned issues, this disclosure innovatively proposes a ring network cooling device employing a dual-ring network architecture.

[0068] Figure 2 This is a schematic diagram of the architecture of a ring network cooling device according to a first embodiment of the present disclosure. The ring network cooling device includes a first ring network 1 serving as the main ring network. The first ring network 1 is divided into multiple working sections 10, each working section 10 configured to cool a corresponding device 6 to be cooled, such as a corresponding cabinet. Each working section 10 is associated with and configured to cool the multiple devices 6 to be cooled. For example, in… Figure 2 In the illustrated embodiment, each work section 10 is paired with five devices 6 to be cooled, such as five cabinets.

[0069] In addition to the first ring network 1, the ring network cooling device also includes a second ring network 2 as a backup ring network. The second ring network 2 is configured to continue cooling the corresponding equipment 6 in place of the affected working sections 10 of the first ring network 1 when one or more working sections 10 of the first ring network 1 are affected by a fault, wherein the affected working sections 10 of the first ring network 1 are deactivated. When the two fault types mentioned above occur, the ring network cooling device with a dual-ring network architecture according to this disclosure can be supplied with power through the second ring network 2, and then the affected working sections 10 on the first ring network 1 can be deactivated, thus ensuring uninterrupted cooling of the cabinet. That is, when the affected working sections 10 of the first ring network 1 are deactivated, the second ring network 2 continues to cool the corresponding equipment 6 (originally cooled by the affected working sections 10), thus avoiding service interruption as in the prior art. Here, the impact of a fault on working section 10 includes not only the situation described in this article where a fault occurs on or within working section 10 of the first ring network 1, but also the situation where a fault occurs in the pipeline connected to working section 10, thereby causing working section 10 to also malfunction. In this article, the term "ring network" refers to a pipe network with a ring structure, especially a pipeline.

[0070] Here, as Figure 2 As shown, in order to isolate and deactivate one or more working sections 10 of the first ring network 1 when a fault occurs, a first isolation device 5 is provided on the first ring network 1. The first isolation device 5 is arranged such that it is located at both ends of each working section 10. When a working section 10 is affected by a fault, the first isolation device 5 corresponding to the affected working section 10 can be closed to deactivate the affected working section 10 and thereby isolate it from the remaining normal working sections 10 of the first ring network 1. Here, the first isolation device 5 can be configured as an isolation valve, particularly a manual isolation valve. When a working section 10 is affected by a fault, the manual isolation valves at both ends of that working section 10 can be manually closed, thereby deactivating the corresponding affected working section 10. When either of the above two fault scenarios occurs, the ring network cooling device with a dual-ring network architecture can supply power through the second ring network 2, and then close the isolation valve on the first ring network 1, thereby ensuring the continuity of business.

[0071] Similar to the first ring network 1, the second ring network 2 also includes a supply ring network 21, particularly a supply line, and a return ring network 22, particularly a return line. Likewise, in the first ring network 1, for each working section 10, isolation valves appear in groups; that is, for each working section 10, there is a group of isolation valves at each end, respectively arranged in the supply ring network 11, particularly the supply line, and the return ring network 12, particularly the return line. In this document, the first isolation device 5 of the first ring network 1 is arranged in groups on the supply ring network 11 and the return ring network 12.

[0072] exist Figure 2 As mentioned above, each work section 10 is paired with five server racks, and each work section 10 is also isolated using double isolation valves. Therefore, in Figure 2 The ring network cooling device shown contains a five-rack dual-valve isolation architecture. Of course, in other embodiments, each working section 10 can also be paired with multiple other racks, such as three, four, six, seven, or eight racks. Therefore, multi-rack dual-valve isolation can be achieved through the ring network cooling device according to this disclosure. Figure 1 Compared to the single-cabinet dual-valve isolation architecture shown, the multi-cabinet dual-valve isolation architecture can effectively reduce the number of isolation valves on the first ring network 1. Since the isolation valves themselves are risk points that can cause ring network leakage and other faults, the multi-cabinet dual-valve isolation architecture implemented by the technical solution of this disclosure also effectively increases the operational stability of the first ring network 1, thereby increasing the overall operational stability of the entire system.

[0073] According to the first embodiment, the pipe diameter of the first ring network 1 of the ring network cooling device can be the same as that of a conventional ring network cooling device, while the pipe diameter of the second ring network 2 is related to the number of cabinets that can be partitioned. Therefore, the pipe diameter of the second ring network 2 can usually be smaller than that of the first ring network 1. Assuming the first ring network 1 is a five-rack (X=5, where X is the number of racks configured for each work section 10) rack partition architecture, i.e., each work section 10 is configured with five racks, the following situation may occur: the first partition device 5 between two work sections 10 may experience leakage or other malfunctions, which will impair the performance of the two adjacent work sections 10. As a result, for the five (X=5) rack partition architecture, the ten racks corresponding to the two work sections 10 cannot be effectively cooled by the first ring network 1. At this time, the pipe diameter of the second ring network 2 needs to meet the flow rate and / or resistance requirements of the corresponding equipment 6 to be cooled in conjunction with the two work sections 10. Therefore, for the five (X=5) rack partition architecture, the pipe diameter requirement of the second ring network 2 needs to meet the flow rate and resistance requirements of ten (N=2X) racks. Of course, in order to provide greater redundancy, in other embodiments, the pipe diameter of the second ring network 2 can be determined such that the pipe diameter of the second ring network 2 meets the flow and / or resistance requirements of the corresponding equipment 6 to be cooled, which are matched with three, four or more working sections 10 of the first ring network 1.

[0074] Besides the geometric structure such as pipe diameter, the material of the second ring network 2 can also be different from that of the first ring network 1. For the material of the second ring network 2, a material that is weaker in performance but lower in cost compared to the material of the first ring network 1 can be selected to obtain a better cost performance.

[0075] like Figure 2 As shown, a flow divider or collector 7 is installed on the device 6 to be cooled, such as a cabinet. The flow divider or collector 7 can divide the flow to the device 6 under incoming flow conditions or collect the flow under returning flow conditions. The flow divider or collector 7 is fluidly connected to the first ring network 1 and the second ring network 2 in an isolating manner, thereby enabling the flow divider or collector 7 to isolate the supply and return flow of the first ring network 1 or the second ring network 2 to the device 6 to be cooled as needed, thus achieving a so-called double-sided isolation. The flow divider or collector 7 can be configured as an incoming flow divider 71 and a returning flow collector 72 according to the incoming and returning operating conditions. Here, these incoming flow dividers 71 and returning flow collectors 72 also have a double-sided isolation function. The first ring network 1 and the second ring network 2 are arranged on both sides of the flow divider or collector 7. In addition to the first isolation device 5, in some cases, valves can also be installed on the connecting pipes (branch pipes) between the first ring network 1 and the flow divider or collector 7 installed on the cabinet.

[0076] To ensure uninterrupted cooling of the equipment 6 to be cooled and thus guarantee business continuity, it is necessary to ensure that fault points, such as leaks, on the first ring network 1 and the second ring network 2 do not affect each other. This can be achieved using the aforementioned splitter or collector device 7 with bilateral isolation function. When the first ring network 1 is used for supply and return, the splitter or collector device 7 on the cabinet can isolate the supply and return of the second ring network 2; when the second ring network 2 is used for supply and return, the corresponding splitter or collector device 7 in the cabinet needs to isolate the supply and return of the first ring network 1.

[0077] For example, refer to Figure 2 When a fault occurs in the working section 10 in the lower left corner of the diagram, or in the cabinet group (five (X=5) cabinets), on the pipeline of the first ring network 1, and it is necessary to close the isolation valve of the working section 10 or the cabinet group on the first ring network 1, Figure 2 The cabinet group in the lower left corner is supplied with power through the second ring network 2, while other normal working sections 10, or cabinet groups, can continue to be supplied with power through the first ring network 1.

[0078] The following uses Figure 3 The specific structure of the current splitting or current collecting device 7 will be explained in detail. Figure 3 This is a schematic diagram of different combinations of the diversion or collection device 7 of the ring network cooling device according to this disclosure;

[0079] As described above, in the ring network cooling device with a dual-ring network architecture on the liquid cooling secondary side of this disclosure, the diversion or collection device 7 needs to have the ability to isolate both sides. When a leak occurs in the pipeline on one side, it can be isolated and the flow can be supplied through the other side without being affected by the leaking pipeline.

[0080] Therefore, the diversion or collection device 7 is provided with a corresponding second isolation device 70 at the corresponding connection part communicating with the first ring network 1 or the second ring network 2. The fluid connection between the diversion or collection device 7 and the first ring network 1 or the second ring network 2 can be isolated by the corresponding second isolation device 70. The corresponding second isolation device 70 is constructed in one of the following ways: a separate isolation valve 701, which can be connected to the diversion or collection device 7; a self-contained isolation valve 702, which can be integrally set on the diversion or collection device 7; a quick connector 703, which can achieve isolation by pulling out the quick connector 703; or an interlocking ball valve 704, which can achieve isolation by separating the interlocking ball valve 704.

[0081] The bilaterally separable splitter or collector 7 can, for example, have seven different combinations, five of which are as follows: Figure 3As shown. The default lower end is connected to the first ring network 1. Form 1: Both the second isolation device 70 on the first ring network side and the second isolation device 70 on the second ring network side are constructed as separate isolation valves 701; for example, a common diversion or collection device 7 has isolation valves connected to both sides. Form 2: Both the second isolation device 70 on the first ring network side and the second isolation device 70 on the second ring network side are constructed as self-contained isolation valves 702; for example, a diversion or collection device 7 with isolation valves on both sides. This type of diversion or collection device 7 requires the isolation valves to be combined with the diversion or collection device 7 by welding or other methods during its fabrication. Form 3: The second isolation device 70 on the first ring network side is constructed as a self-contained isolation valve 702, while the second isolation device 70 on the second ring network side is constructed as a quick connector 703; for example, one end of the diversion or collection device 7 ( Figure 3 The lower end (middle) is the built-in isolation valve 702, and the other end ( Figure 3 The upper part (middle) is a quick connector 703, which can achieve pipeline isolation by pulling out the quick connector 703. Form four: The second isolation device 70 on the first ring network side is constructed as an interlocking ball valve 704, while the second isolation device 70 on the second ring network side is constructed as a quick connector 703; for example, the lower end is an interlocking ball valve 704, and the upper end is a quick connector 703. Pipeline isolation is achieved by separating the interlocking ball valve 704 and pulling out the quick connector 703. Form five: The second isolation device 70 on the first ring network side is constructed as an interlocking ball valve 704, while the second isolation device 70 on the second ring network side is constructed as a built-in isolation valve 702; for example, the lower end is an interlocking ball valve 704, and the upper end is a built-in isolation valve 702 of the diversion or collection device 7. In embodiments not shown, there are two other forms. Form six involves both the second isolation device 70 on the first ring network side and the second isolation device 70 on the second ring network side being constructed as quick connectors 703; for example, both the upper and lower ends are quick connectors 703, and pipeline isolation is achieved by pulling out the quick connectors 703 on both sides. Form seven involves the second isolation device 70 on the first ring network side being constructed as a quick connector 703, while the second isolation device 70 on the second ring network side is constructed as a built-in isolation valve 702; for example, the lower end is a quick connector 703, and pipeline isolation is achieved by pulling out the quick connector 703 at the lower end, while the upper end is a built-in isolation valve 702 of the diversion or collection device 7. Thus, the bilateral isolation function of the diversion or collection device 7 can be achieved through different interface forms and isolation valve combinations: a combination of a common interface (joint or clamp connection) and an isolation valve, a quick connector 703, an interlocking ball valve 704, welding and an isolation valve, etc. For example, when the corresponding second isolation device 70 is configured as a separate isolation valve 701, the separate isolation valve 701 is connected to the diversion or collection device 7 by a live joint structure or a clamp connection structure.

[0082] To distribute traffic to the first ring network 1 and the second ring network 2, the ring network cooling device is also equipped with a traffic distribution unit 8. Now, let's return to... Figure 2 The flow distribution method of the ring network cooling device according to the first embodiment will be described in detail.

[0083] exist Figure 2 In the first embodiment shown, the flow distribution unit 8 is configured to directly distribute flow to the first ring network 1 and indirectly distribute flow to the second ring network 2 via the first ring network 1. In this case, the first connection structure 30 for the supply and return mains of the supply ring network 21 and return ring network 22 in the second ring network 2 is provided between the corresponding supply ring network 11 and return ring network 12 in the first ring network 1 and the supply ring network 21 and return ring network 22 in the second ring network 2. Figure 2 As shown, the connection point of the first connection structure 30 located on the first ring network 1 is positioned between the flow distribution unit 8 and the first isolation device 5 closest to the flow distribution unit 8 in the first ring network 1. The first connection structure 30 is equipped with a first switching device 31 (e.g., a solenoid valve) for connecting or disconnecting the first connection structure 30, and a first regulating device 32 (e.g., an electric regulating valve) for regulating the flow of the first connection structure 30. Figure 2 As clearly seen, the first regulating device 32, configured as an electric regulating valve, can be located in the sub-connecting structure 33 within the first connecting structure 30, which connects the supply loop 11 of the first loop network 1 and the supply loop 21 of the second loop network 2. Conversely, the first switching device 31, configured as a solenoid valve, is located in another sub-connecting structure 34 within the first connecting structure 30, which connects the return loop 12 of the first loop network 1 and the return loop 22 of the second loop network 2. Of course, in other embodiments, the positions of the first switching device 31 and the first regulating device 32 can be interchanged. Furthermore, in other embodiments, only the first switching device 31 or only the first regulating device 32 may be provided; that is, the first switching device 31 and the first regulating device 32 can be selectively provided according to requirements.

[0084] The following uses Figure 4 and Figure 5 A second embodiment of the ring network cooling device according to this disclosure will be described. Figure 4 This is a schematic diagram of the architecture of a ring network cooling device according to a second embodiment of the present disclosure. Figure 5 yes Figure 4 A schematic diagram of the arrangement structure within the flow distribution unit 8 of the ring network cooling device.

[0085] The second embodiment of the ring network cooling device according to this disclosure is constructed substantially the same as the first embodiment of the ring network cooling device in all respects except for the flow distribution method. Therefore, the above description of the ring network cooling device according to the first embodiment, except for the flow distribution method, can be applied to the ring network cooling device according to the second embodiment.

[0086] The following section provides a detailed explanation of different traffic allocation methods. For example... Figure 4 and Figure 5 As can be seen, the flow distribution unit 8 of the ring network cooling device according to the second embodiment is configured to directly distribute the flow to the first ring network 1 and the second ring network 2. At this time, the second connection structure 40 for the supply and return main pipes of the supply ring network 21 and return ring network 22 in the second ring network 2 is configured as a bypass pipe of the flow distribution unit 8 for the main pipe leading to the first ring network 1. A second switching device 41, such as a solenoid valve, for connecting or disconnecting the second connection structure 40, and a second regulating device 42, such as an electric regulating valve, for regulating the flow of the second connection structure 40, are provided on the second connection structure 40. A second regulating device 42, configured as an electrically operated regulating valve, is disposed in a sub-bypass pipe 43 within a second connection structure 40, which is configured as a bypass pipe, connecting the main supply line 81 of the flow distribution unit 8 and the supply loop network 21 of the second loop network 2. A second switching device 41, configured as a solenoid valve, is disposed in another sub-bypass pipe 44 within the second connection structure 40, which is configured as a bypass pipe, connecting the return line 82 of the flow distribution unit 8 and the return loop network 22 of the second loop network 2. Furthermore, the flow distribution unit 8 includes a pump device 9, which is disposed downstream of the connection point between the other sub-bypass pipe 44 for return flow and the return line 82 of the flow distribution unit 8, along the return direction on the return line 82 of the flow distribution unit 8. In this case, the second switching device 41, configured as a solenoid valve, can be disposed on the inlet side of the pump device 9, thereby preventing the operation of the pump device 9 from being affected by a half-open state, as described above. Of course, in other embodiments, the arrangement positions of the second switching device 41 and the second regulating device 42 can be interchanged. Furthermore, in other embodiments, only the second switching device 41 or only the second adjusting device 42 may be provided; that is, the second switching device 41 and the second adjusting device 42 can be selectively provided according to requirements. However, the preferred embodiment is as follows: Figure 4 and Figure 5 The arrangement structure shown is shown.

[0087] The following describes the linkage control method for a dual-ring network architecture. For example... Figure 2The dual-ring network architecture shown in the diagram involves the second isolation device 70 (e.g., an isolation valve) on the diversion or collection device 7 being linked with the first switching device 31, which is configured as a solenoid valve, and the first regulating device 32, which is configured as an electric regulating valve, for control purposes. For example... Figure 4 The dual-ring network architecture shown features a second isolation device 70 (e.g., an isolation valve) on the diversion or collection device 7, which is linked to a second switching device 41 (a solenoid valve) and a second regulating device 42 (an electric regulating valve) within the flow distribution unit 8. When any second isolation device 70 (e.g., an isolation valve) on the diversion or collection device 7 connected to the second ring network 2 is opened, especially manually, the solenoid valve opens in tandem. The electric regulating valve opens in steps according to the number of second isolation devices 70 (e.g., isolation valves) opened on the diversion or collection device 7 (the user can set the opening degree for each step as needed). Opening the second isolation device 70 means that the pipeline connected through the second isolation device 70 (a separate isolation valve, a built-in isolation valve, a quick connector, or an interlocking ball valve) is in a connected (i.e., non-isolated) state.

[0088] It should be noted that the terminology used herein is for illustrative purposes only and is not intended to limit the disclosure. The singular forms “a” and “the one” as used herein should include the plural forms unless the context explicitly states otherwise. It is understood that the terms “comprising” and “including,” and other similar terms, when used in the application documents, specifically describe the presence of the stated operation, element, and / or component, without excluding the presence or addition of one or more other operations, elements, components, and / or combinations thereof. The term “and / or” as used herein includes all arbitrary combinations of one or more of the associated listed items. In the description of the drawings, similar reference numerals always denote similar elements.

[0089] The thickness of the elements in the accompanying drawings may be exaggerated for clarity. It is also understood that if an element is described as being on, coupled to, or connected to another element, then the element may be directly formed on, coupled to, or connected to the other element, or there may be one or more intermediate elements between them. Conversely, if the expressions "directly on," "directly coupled to," and "directly connected to" are used herein, it indicates that there is no intermediate element. Other terms used to describe relationships between elements should be interpreted similarly, such as "between" and "directly between," "attached" and "directly attached," "adjacent" and "directly adjacent," etc.

[0090] Terms such as “top,” “bottom,” “above,” “below,” “over,” “under,” etc., are used to describe the relationship of one element, layer, or region relative to another element, layer, or region, as shown in the accompanying drawings. It is understood that these terms should also encompass other orientations of the device in addition to those described in the accompanying drawings.

[0091] It is understood that although the terms "first," "second," etc., may be used herein to describe different elements, these elements should not be limited by these terms. These terms are merely used to distinguish one element from another. Thus, a first element may be referred to as a second element without departing from the teachings of this disclosure.

[0092] It can also be considered that all the exemplary embodiments disclosed herein can be arbitrarily combined with each other. Furthermore, all individual technical features in this application can be arbitrarily combined with each other, as long as the combined technical features are not contradictory. All technically feasible combinations of features are the technical content described in this application.

[0093] Finally, it should be noted that the above embodiments are merely for understanding this disclosure and do not constitute a limitation on the scope of protection of this disclosure. Those skilled in the art can make modifications based on the above embodiments, and these modifications will not depart from the scope of protection of this disclosure.

Claims

1. Ring net cooling device, which is configured for cooling equipment (6) of a data center to be cooled on the secondary side of a liquid cooling system of the data center, wherein The ring network cooling device includes a first ring network (1) serving as the main ring network, which is divided into multiple working sections (10). Each working section is configured to cool the corresponding equipment to be cooled. Its features are, The ring network cooling device further includes a second ring network (2) as a backup ring network. The second ring network is configured to continue cooling the corresponding equipment to be cooled in place of the faulty working sections of the first ring network when one or more working sections of the first ring network are affected by a fault. The faulty working sections of the first ring network are deactivated. The first and second ring networks each include a supply ring network (11, 21) and a return ring network (12, 22), and the ring network cooling device is equipped with a flow distribution unit (8) configured for... Traffic is directly distributed to the first ring network, and indirectly distributed to the second ring network via the first ring network; or Traffic is directly allocated to the first and second ring networks.

2. The ring network cooling device according to claim 1, characterized in that, Each working section is associated with and configured to cool multiple devices.

3. The ring network cooling device according to claim 1 or 2, characterized in that, A first isolation device (5) is provided on the first ring network. The first isolation device is arranged such that a first isolation device is provided at both ends of each working section. When a working section is affected by a fault, the first isolation device matched with the working section affected by the fault can be closed to deactivate the working section affected by the fault and thereby isolate the working section affected by the fault from the other normal working sections of the first ring network.

4. The ring network cooling device according to claim 1 or 2, characterized in that, The piping of the first ring network and the piping of the second ring network differ in terms of piping geometry and / or materials.

5. The ring network cooling device according to claim 4, characterized in that, The pipe diameter of the second ring network is smaller than that of the pipe diameter of the first ring network.

6. The ring network cooling device according to claim 4, characterized in that, The pipe diameter of the second ring network is determined according to the number of corresponding devices to be cooled that are matched with the working section.

7. The ring network cooling device according to claim 6, characterized in that, The pipe diameter of the second ring network is determined such that it meets the flow rate and / or resistance requirements of the corresponding equipment to be cooled, which are compatible with at least two working sections of the first ring network.

8. The ring network cooling device according to claim 1 or 2, characterized in that, A flow splitting or collecting device (7) is provided on the equipment to be cooled. The flow splitting or collecting device can split the flow of the equipment to be cooled in the case of incoming flow or collect the flow in the case of return flow. The flow splitting or collecting device is fluidly connected to the first ring network and the second ring network in a disconnectable manner, so that the flow splitting or collecting device can disconnect the supply and return flow of the first ring network or the second ring network to the equipment to be cooled as needed.

9. The ring network cooling device according to claim 8, characterized in that, The diversion or collection device is provided with a corresponding second isolation device (70) at the corresponding connection part that connects to the first ring network or the second ring network. The fluid connection between the diversion or collection device and the first ring network or the second ring network can be isolated by the corresponding second isolation device.

10. The ring network cooling device according to claim 9, characterized in that, The corresponding second partition device is constructed in one of the following ways: A separate isolation valve (701) that can be connected to a flow divider or flow collector; The integrated isolation valve (702) can be integrated into the diversion or collection device. Quick connector (703) allows for isolation by pulling out the quick connector; Interlocking ball valve (704) can achieve isolation by separating the interlocking ball valve.

11. The ring network cooling device according to claim 10, characterized in that, The combination of the second isolation device on the first ring network side at the connection point connecting to the first ring network and the second isolation device on the second ring network side at the connection point connecting to the second ring network can take one of the following combinations: The second isolation device on the first ring network side and the second isolation device on the second ring network side are both constructed as separate isolation valves; The second isolation device on the first ring network side and the second isolation device on the second ring network side are both constructed as self-contained isolation valves. The second isolation device on the first ring network side is constructed with a built-in isolation valve, while the second isolation device on the second ring network side is constructed with a quick connector. The second isolation device on the first ring network side is constructed as an interlocking ball valve, while the second isolation device on the second ring network side is constructed as a quick connector. The second isolation device on the first ring network side is constructed as an interlocked ball valve, while the second isolation device on the second ring network side is constructed as a self-contained isolation valve. The second isolation device on the first ring network side and the second isolation device on the second ring network side are both constructed as quick connectors; The second isolation device on the first ring network side is constructed as a quick connector, while the second isolation device on the second ring network side is constructed as a built-in isolation valve.

12. The ring network cooling device according to claim 3, characterized in that, When the flow distribution unit is configured to directly distribute flow to the first ring network and indirectly distribute flow to the second ring network via the first ring network, the first connection structure (30) for the supply and return main pipes of the supply ring network and return ring network in the second ring network is set between the corresponding supply ring network and return ring network in the first ring network and the supply ring network and return ring network in the second ring network.

13. The ring network cooling device according to claim 12, characterized in that, The connection point of the first connection structure located on the first ring network is set between the flow distribution unit and the first isolation device of the first ring network that is closest to the flow distribution unit.

14. The ring network cooling device according to claim 12, characterized in that, The first connection structure is provided with a first switching device (31) for connecting or disconnecting the first connection structure and / or a first regulating device (32) for regulating the flow of the first connection structure.

15. The ring network cooling device according to claim 14, characterized in that, The first adjusting device is disposed in the sub-connection structure (33) within the first connection structure that connects the supply ring network of the first ring network and the supply ring network of the second ring network, and / or The first switching device is located in another sub-connection structure (34) within the first connection structure, which connects the return ring network of the first ring network and the return ring network of the second ring network.

16. The ring network cooling device according to claim 1, characterized in that, When the flow distribution unit is configured to directly distribute flow to the first ring network and the second ring network, the second connection structure (40) for the supply and return main pipes of the supply ring network and the return ring network in the second ring network is configured as a bypass pipe of the flow distribution unit for the main pipe leading to the first ring network.

17. The ring network cooling device according to claim 16, characterized in that, The second connection structure is provided with a second switching device (41) for connecting or disconnecting the second connection structure and / or a second regulating device (42) for regulating the flow of the second connection structure.

18. The ring network cooling device according to claim 17, characterized in that, The second regulating device is disposed in a sub-bypass pipe (43) that connects the main supply pipe (81) of the flow distribution unit and the supply ring network of the second ring network in the second connection structure configured as a bypass pipe, and / or The second switching device is installed in another sub-bypass pipe (44) that connects the return main pipe (82) of the flow distribution unit and the return ring network of the second ring network in the second connection structure which is configured as a bypass pipe.

19. The ring network cooling device according to claim 18, characterized in that, The flow distribution unit includes a pump device (9) which is located downstream of the connection point between the additional sub-bypass pipeline for return flow of the second connection structure and the return main pipeline of the flow distribution unit along the return direction on the return main pipeline of the flow distribution unit.

20. The ring network cooling device according to claim 14 or 17, characterized in that, The corresponding first or second switching device is constructed as a solenoid valve, while the corresponding first or second regulating device is constructed as an electric regulating valve.

21. A method for linkage control of a ring network cooling device, wherein the ring network cooling device is a ring network cooling device according to any one of claims 1 to 20, wherein, The second isolation device on the diversion or collection device is linked to the first switching device and the first regulating device located between the first ring network and the second ring network for coordinated control. or The second isolation device on the diversion or collection device is linked with the second switching device and the second regulating device in the bypass pipeline of the flow distribution unit for coordinated control.

22. The method according to claim 21, characterized in that, When the second isolation device connected to the second ring network on the diversion or collection device is opened, the first or second switching device will be opened in conjunction with it, and the first or second regulating device will be opened step by step.

23. The method according to claim 22, characterized in that, The first or second regulating device is opened in stages according to the number of diverting or collecting devices that are activated.

24. A data center comprising a ring network cooling device according to any one of claims 1 to 20.

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