Cabinet cooling system, cooling device and server device

Abstract

The invention relates to a cabinet cooling system, a cooling device and a server device. The cabinet cooling system comprises a cabinet heat exchange pipeline and a pressure stabilizing liquid storage tank. And the cabinet heat exchange pipeline is used for being matched with the cooling capacity supply system for heat exchange, is matched with the cabinet and is used for cooling the cabinet. And the pressure-stabilizing liquid storage tank is communicated with the cabinet heat exchange pipeline. Wherein the pressure stabilizing liquid storage tank is used for being communicated with preset pressure, and the preset pressure is smaller than 150 kPa. On the basis of the arrangement, the pressure value in the cabinet heat exchange pipeline is smaller than 150 kilopascals through communication of the pressure stabilizing liquid storage tank, and in the range, the pressure value in the cabinet heat exchange pipeline can be smaller than the pressure value when the cabinet heat exchange pipeline is closed, so that the range of the leakage influence can be reduced, and the protection effect on other cabinets is achieved. In addition, the pressure-stabilizing liquid storage tank can also absorb the volume change of the cooling liquid caused by temperature change, so that the pressure fluctuation of the system is prevented from being too large, and the normal operation of the system is ensured.

Description

Technical Field

[0001] This application relates to the field of cooling, and more particularly to a cabinet cooling system, cooling device, and server device. Background Technology

[0002] Liquid cooling technology using water-cooled plates is a highly efficient heat dissipation method, particularly suitable for applications requiring efficient cooling, such as high-performance computing (HPC) and data centers. This technology consists of several key components, including a cooling supply system, a cooling distribution unit (CDU), a rack cooling system, water-cooled plates, pumps, and temperature and pressure sensors. Each component plays a specific role, working together to ensure the system's efficient operation.

[0003] However, server rack cooling systems are typically designed with closed-loop piping. This configuration allows for better control of the coolant temperature flowing through the servers, improving cooling efficiency. Simultaneously, the closed system effectively prevents external contaminants from entering, ensuring coolant quality and extending equipment lifespan. However, to ensure effective coolant circulation and heat removal through the water-cooling plates, the system needs to maintain a certain pressure. This pressure typically ranges from 150 to 350 kPa, depending on the system. Under this high-pressure environment, leaks can not only cause coolant to spray out and damage server hardware, but also create a large shockwave due to the sudden release of coolant, affecting the safety of surrounding equipment. Especially in densely populated data centers, a single leak can affect multiple rack slots or even the entire rack, causing significant damage. Summary of the Invention

[0004] The purpose of this application is to provide a cabinet cooling system, a cooling device, and a server device.

[0005] According to a first aspect of the embodiments of this application, a rack cooling system is provided for use with a rack and a cooling supply system, the rack cooling system comprising:

[0006] The cabinet heat exchange piping is used to cooperate with the cooling supply system for heat exchange and is configured to cooperate with the cabinet for cooling the cabinet.

[0007] A pressure-stabilizing liquid storage tank is used to store coolant, and the pressure-stabilizing liquid storage tank is connected to the heat exchange pipeline of the cabinet;

[0008] The pressure-stabilizing storage tank is used to connect to a preset pressure, wherein the preset pressure is less than a first preset threshold and greater than a second preset threshold.

[0009] In some embodiments, the first preset threshold is less than 150 kPa; and / or, the second preset threshold is greater than 0 kPa.

[0010] In some embodiments, the cabinet cooling system includes a liquid suction pump connected to the cabinet heat exchange pipeline and located between the cabinet and the pressure-stabilizing liquid storage tank, for generating negative pressure in the cabinet heat exchange pipeline.

[0011] In some embodiments, the cabinet cooling system further includes an auxiliary channel, on which a valve device is provided. The auxiliary channel is connected in parallel with the liquid suction pump, and when the valve device is opened, the auxiliary channel is connected to the cabinet heat exchange pipeline.

[0012] The cabinet cooling system includes a normal state and a leakage state;

[0013] When the cabinet cooling system is in normal condition, the valve device is opened, and the auxiliary channel is connected to the cabinet heat exchange pipeline and the pressure-stabilizing liquid storage tank.

[0014] When the cabinet cooling system is leaking, the valve device closes and the auxiliary channel is disconnected from the cabinet heat exchange pipeline.

[0015] In some embodiments, the cabinet heat exchange piping includes a main channel and multiple cabinet channels that are interconnected, and the pressure-stabilizing liquid storage tank is connected to the main channel.

[0016] Multiple cabinet access channels are connected in parallel, and each cabinet access channel is used to cooperate with one or more cabinets;

[0017] The liquid suction pump is installed in the cabinet channel or the main channel and is used to allow the coolant to flow from the cabinet channel to the pressure-stabilizing storage tank.

[0018] In some embodiments, when there are multiple suction pumps, at least one of the suction pumps is located in the cabinet passageway.

[0019] In some embodiments, the cabinet cooling system further includes multiple auxiliary channels and multiple valve devices. Each auxiliary channel is provided with a valve device, and each suction pump is equipped with the auxiliary channel and the valve device. The auxiliary channels are connected in parallel with the suction pumps. When the valve device is opened, the auxiliary channel is connected to the cabinet heat exchange pipeline.

[0020] In some embodiments, the cabinet cooling system further includes a plurality of cabinet liquid supply pumps, which are respectively connected to the cabinet channel, and each cabinet liquid supply pump is used to supply liquid to the cabinet it is paired with.

[0021] In some embodiments, the cabinet cooling system further includes a leakage sensor and a controller, the leakage sensor being connected to the controller and disposed in the cabinet, the leakage sensor being used to acquire leakage signals of the cabinet heat exchange pipeline;

[0022] The controller is connected to the suction pump and is used to receive the leakage signal and send a working signal to the suction pump.

[0023] In some embodiments, the cabinet cooling system further includes an auxiliary channel, on which a valve device is provided, and the auxiliary channel is connected in parallel with the liquid suction pump;

[0024] The controller is connected to the valve device, and the controller is used to receive the leakage signal and send a working signal to the valve device.

[0025] In some embodiments, the pressure-stabilizing liquid storage tank is connected to the atmosphere.

[0026] In some embodiments, the pressure-stabilizing liquid storage tank includes a liquid storage space, the liquid storage space including a top and a bottom, the coolant flowing out from the bottom of the liquid storage space to the heat exchange pipeline of the cabinet, and flowing into the liquid storage space from the top of the heat exchange pipeline of the cabinet.

[0027] According to a second aspect of the embodiments of this application, a cooling device is provided, the cooling device including the cabinet cooling system described in any of the above embodiments.

[0028] In some embodiments, the cooling device further includes a cooling supply system and a heat exchanger. The cooling supply system includes a supply pipeline and a cooling section. The cooling section is connected to the supply pipeline and is used to reduce the heat of the coolant in the supply pipeline.

[0029] The cooling supply system and the cabinet cooling system are respectively connected to the heat exchanger for heat exchange.

[0030] In some embodiments, the cooling unit includes a dry cooler and / or a cooling tower connected to the supply line and used to reduce the heat of the coolant in the supply line.

[0031] According to a third aspect of the present application, a cabinet cooling system control method is provided, the cabinet cooling system control method comprising: a cabinet cooling system as described in the above embodiments, as well as a liquid suction pump, an auxiliary channel, a valve device, a leakage sensor, and a controller;

[0032] The suction pump is connected to the heat exchange pipeline of the cabinet and is located between the cabinet and the pressure-stabilized liquid storage tank. A valve device is provided on the auxiliary channel. The auxiliary channel is connected in parallel with the suction pump. When the valve device is opened, the auxiliary channel is connected to the heat exchange pipeline of the cabinet.

[0033] The leakage sensor is used to acquire leakage signals of the heat exchange pipeline of the cabinet. The leakage signal includes a first signal and a second signal, wherein the first signal indicates that the heat exchange pipeline of the cabinet is not leaking, and the second signal indicates that the heat exchange pipeline of the cabinet is leaking.

[0034] When the controller receives the first signal, it sends an open signal to the valve device and a close signal to the suction pump; when the controller receives the second signal, it sends a close signal to the valve device and an open signal to the suction pump.

[0035] According to a fourth aspect of the embodiments of this application, a server apparatus is provided, the server apparatus including a cooling device as described in any of the above embodiments, wherein the server rack and the cooling device are configured in cooperation.

[0036] In some embodiments, the heat exchange piping of the cabinet is attached to the cabinet and used for heat exchange with the cabinet; or, the cabinet is provided with a coolant channel, and the heat exchange piping of the cabinet is connected to the coolant channel.

[0037] The beneficial technical effects of the technical solutions provided in this application are:

[0038] This application incorporates a pressure-stabilizing reservoir on the heat exchange piping of the server rack. Based on this configuration, the connection of the reservoir ensures that the pressure within the heat exchange piping is less than a first preset threshold, and greater than a second preset threshold. The first preset threshold is the pressure maintained within the closed system, while the second preset threshold is the pressure that allows the coolant to flow normally within the heat exchange piping. Within this range, the internal pressure of the heat exchange piping is lower than the pressure when the piping is closed, thus reducing the extent of leakage and protecting other server racks. Furthermore, the reservoir can absorb coolant volume changes caused by temperature variations, preventing excessive system pressure fluctuations and ensuring normal system operation. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a schematic diagram of a cooling device according to an embodiment of this application.

[0041] Figure 2 This is a schematic diagram of another cooling device according to an embodiment of this application.

[0042] Figure 3 This is a schematic diagram of the structure of another cooling device according to an embodiment of this application.

[0043] Figure 4 This is a schematic diagram of another cooling device according to an embodiment of the present application.

[0044] Figure 5 This is a schematic diagram of another cooling device according to an embodiment of the present application.

[0045] Figure 6 This is a schematic diagram of another cooling device according to an embodiment of the present application.

[0046] Explanation of reference numerals in the attached figures:

[0047] Cooling device 10

[0048] Rack cooling system 100

[0049] 110 rack heat exchange pipes

[0050] Main Road Passage 111

[0051] Cabinet access channel 112

[0052] 120 pressure-stabilizing liquid storage tank

[0053] Liquid storage space 121

[0054] Suction pump 130

[0055] Auxiliary channel 140

[0056] Valve device 150

[0057] Cabinet liquid supply pump 160

[0058] Leakage sensor 170

[0059] 200 cooling supply system

[0060] Supply line 210

[0061] Cooling section 220

[0062] 230 cold liquid supply pump

[0063] Heat exchanger 300

[0064] 400 racks Detailed Implementation

[0065] The technical solutions in the embodiments (or "implementations") of this application will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0066] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movements between components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0067] Liquid cooling technology using water-cooled plates is a highly efficient heat dissipation method, particularly suitable for applications requiring efficient cooling, such as high-performance computing (HPC) and data centers. This technology consists of several key components, including a cooling supply system 200, a cooling distribution unit (CDU), a rack cooling system 100, water-cooled plates, and pumps. Each component plays a specific role, working together to ensure the system's efficient operation.

[0068] The cooling supply system 200 is responsible for generating cryogenic coolant and is the foundation of the entire cooling system. It typically consists of components such as chillers, dry coolers, and cooling towers. The cooling distribution unit is a key device connecting the cooling supply system 200 and the rack cooling system 100, responsible for regulating and distributing the coolant. Its main functions include receiving cryogenic coolant, adjusting coolant parameters, distributing coolant, and monitoring and controlling it. The rack cooling system 100 is responsible for distributing coolant from the cooling distribution unit to each server node and returning heated coolant to the cooling distribution unit. Its main components include main pipes, branch pipes, connectors, filters, and safety relief valves. Water-cooled plates are installed on the server nodes, directly contacting heat-generating components (such as CPUs and GPUs), transferring heat to the coolant through heat conduction. Pumps are key devices that drive the coolant circulation within the system and can be located within the cooling supply system 200 and the rack cooling system 100.

[0069] However, server rack cooling systems are typically configured with closed-loop piping. This configuration allows for better control of the coolant temperature flowing through the servers, improving cooling efficiency. Simultaneously, the closed system effectively prevents external contaminants from entering, ensuring coolant quality and extending equipment lifespan. However, to ensure effective coolant circulation and heat removal through the water-cooling plates, the system needs to maintain a certain pressure. This pressure typically ranges from 150 to 350 kPa, depending on the system. Under this high-pressure environment, leaks can not only cause coolant to spray out at the ruptured pipe, damaging server hardware, but also create a large shockwave due to the sudden release of coolant, affecting the safety of surrounding equipment. Especially in densely populated data centers, a single leak can affect multiple racks or even the entire rack, causing significant damage.

[0070] refer to Figure 1 As shown, this scheme typically features a cooling supply system 200 on one side and a rack cooling system 100 on the other. The cooling supply system 200 and the rack cooling system 100 exchange heat via a heat exchanger 300. The cooling supply system 200 includes a supply pipe 210, a cooling section 220, and a cooling liquid supply pump 230. The cooling section 220 and the cooling liquid supply pump 230 are connected to the supply pipe 210. The cooling section 220 reduces the heat of the coolant in the supply pipe 210, and the cooling liquid supply pump 230 provides kinetic energy to the coolant in the supply pipe 210. The rack cooling system 100 includes a rack heat exchange pipe 110 and a rack cooling liquid supply pump 160. The rack cooling liquid supply pump 160 is connected to the rack heat exchange pipe 110 and provides power to the coolant in the rack heat exchange pipe 110. The rack heat exchange pipe 110 is configured in conjunction with the rack 400.

[0071] The cabinet cooling system 100 is designed to be enclosed. When the cabinet cooling system 100 leaks, due to the high internal pressure, the sudden release of the internal coolant creates a large shock wave, which may damage several adjacent cabinets 400, resulting in significant losses.

[0072] refer to Figure 2As shown, this application proposes a cooling device 10, which includes a rack cooling system 100 and a cooling supply system 200. The rack cooling system 100 includes rack heat exchange pipes 110 and a pressure-stabilizing liquid storage tank 120. The rack heat exchange pipes 110 are used to exchange heat with the cooling supply system 200 and are configured to cool the rack 400. That is, the rack heat exchange pipes 110 extend into the rack 400 and are fitted to the computing units inside the rack 400. Alternatively, the rack 400 may have a coolant channel (not shown in the figure), and the rack heat exchange pipes 110 may be connected to the coolant channel. Anything that can remove heat from the rack 400 is within the scope of protection of this application. Furthermore, the rack 400 typically houses a data processing unit (such as a CPU, GPU, etc.).

[0073] In addition, a pressure-stabilizing reservoir 120 is used to store coolant and is connected to the heat exchange piping 110 of the server rack. That is, the pressure-stabilizing reservoir 120 is installed in the passage of the heat exchange piping 110 of the server rack. The pressure-stabilizing reservoir 120 is used to connect to a preset pressure, where the preset pressure is less than a first preset threshold and greater than a second preset threshold. It should be noted that the first preset value is the pressure maintained inside the closed system, and the second preset threshold is the pressure value that allows the coolant inside the heat exchange piping 110 to flow normally. Furthermore, the pressure-stabilizing reservoir 120 can be connected to a pressure-stabilizing device, which provides a specific pressure value to the pressure-stabilizing reservoir 120, or adjusts the pressure in the reservoir space 121 according to the real-time pressure inside the pressure-stabilizing reservoir 120 to maintain it at a stable level. For example, the pressure value within the heat exchange pipe 110 of the cabinet can be 140 kPa, 130 kPa, 120 kPa, 110 kPa, 100 kPa, 90 kPa, etc., under the action of the pressure stabilizing device. Alternatively, the connected pressure stabilizing device can fluctuate within a certain range, such as between 90 kPa and 140 kPa. As long as it is less than the first preset threshold and the preset pressure is greater than the second preset threshold, it is within the protection scope of this application.

[0074] Based on the above settings, within the aforementioned range, the internal pressure of the rack heat exchange pipe 110 can be lower than the pressure when the rack heat exchange pipe 110 is closed. Simultaneously, the coolant inside the rack heat exchange pipe 110 can flow normally. The rack cooling system 100 includes a normal state and a leakage state. When the rack cooling system 100 is in the normal state, because the internal pressure of the rack heat exchange pipe 110 in this embodiment is lower than the pressure when the rack heat exchange pipe 110 is closed, the coolant pressure on the inner wall of the rack heat exchange pipe 110 is reduced, thereby reducing the risk of damage. When the rack cooling system 100 is in the leakage state, because the internal pressure of the rack heat exchange pipe 110 is lower than the pressure when the rack heat exchange pipe 110 is closed, the scope of coolant leakage can be reduced, thus protecting other racks 400. In addition, the pressure-stabilizing liquid storage tank 120 can also absorb the changes in coolant volume caused by temperature changes, preventing excessive pressure fluctuations in the heat exchange pipes 110 of the cabinet, thereby ensuring the normal operation of the system.

[0075] Based on the above settings, the pressure-stabilizing liquid storage tank 120 can ensure that the pressure value within the heat exchange pipeline 110 of the cabinet is less than 150 kPa, and / or greater than 0 kPa. That is, the first preset threshold is less than 150 kPa; and / or, the second preset threshold is greater than 0 kPa. It should be noted that "greater than 0 kPa" here means that the power output of the cabinet supply pump 160 is greater than zero, that is, the coolant can circulate under the drive of the cabinet supply pump 160. For example, the pressure value within the heat exchange pipeline 110 of the cabinet under the action of the pressure stabilizing device can be 140 kPa, 130 kPa, 120 kPa, 110 kPa, 100 kPa, 90 kPa, 80 kPa, 70 kPa, 60 kPa, 50 kPa, 40 kPa, 30 kPa, 20 kPa, 10 kPa, or 0 kPa.

[0076] In this embodiment, preferably, the pressure-stabilizing liquid storage tank 120 can be directly connected to the atmosphere. That is, the pressure-stabilizing liquid storage tank 120 is connected to a pressure of approximately 101.325 kPa, and at the same time, atmospheric air enters the pressure-stabilizing liquid storage tank 120. With this configuration, there is no need to prepare a stable environment for the heat exchange pipes 110 of the cabinet; direct connection with the atmosphere can reduce the pressure value of the heat exchange pipes 110 of the cabinet. This solution is simple and convenient, and can greatly reduce the cost of the device.

[0077] Based on the above configuration, the pressure-stabilizing liquid storage tank 120 includes a liquid storage space 121, which has a top and a bottom. Coolant flows from the bottom of the liquid storage space 121 to the heat exchange pipes 110 of the cabinet, and then flows from the top of the heat exchange pipes 110 into the liquid storage space 121. Furthermore, the liquid storage space 121 is equipped with a maximum water level line. Additionally, the top or side wall of the liquid storage space 121 typically has a vent or vent valve, which is above the maximum water level line, for communication with the atmosphere.

[0078] When the heat exchange pipe 110 of the cabinet is connected to the pressure-stabilizing liquid storage tank 120, when the temperature of the coolant in the heat exchange pipe 110 rises and its volume expands, the excess coolant is pushed into the coolant portion of the storage space 121. Simultaneously, the air in the gas portion is compressed to maintain stable pressure within the system. Furthermore, when the temperature of the coolant in the heat exchange pipe 110 decreases and its volume contracts, the coolant in the storage space 121 flows back into the system to replenish the coolant lost due to the volume contraction. The air in the gas portion is released to maintain stable pressure within the system.

[0079] Furthermore, the cabinet heat exchange pipes 110 flow into the liquid storage space 121 from the top. This effectively draws air from the heat exchange pipes 110 into the liquid storage tank. The air naturally rises to the top of the tank and is discharged through the vent or vent valve. On the other hand, top-flowing coolant avoids significant disturbances to the liquid level in the tank, helping to maintain level stability, and reduces bubble formation. If the coolant flowed from the bottom, bubbles might form upon entering the tank, increasing system instability and reducing cooling efficiency.

[0080] Meanwhile, the coolant flows from the bottom of the reservoir 121 to the heat exchange pipes 110 of the cabinet. On one hand, as the coolant flows out from the bottom, most of the air has been removed, ensuring that only pure coolant enters the system. On the other hand, the coolant flowing from the bottom ensures that the liquid level in the reservoir remains stable, avoiding problems caused by level fluctuations. Furthermore, the coolant flowing from the bottom ensures a more uniform pressure distribution within the system, preventing problems caused by pressure fluctuations, such as pump cavitation and pipe vibration.

[0081] In one embodiment, reference Figure 3 As shown, the cabinet cooling system 100 includes a suction pump 130, which is connected to the cabinet heat exchange pipeline 110 and located between the cabinet 400 and the pressure-stabilizing liquid storage tank 120, and is used to generate negative pressure in the cabinet heat exchange pipeline 110.

[0082] It should be noted that the suction pump 130 can be a centrifugal pump, diaphragm pump, piston pump, or gear pump. Taking a centrifugal pump as an example, the principle of generating negative pressure is that when the impeller of the centrifugal pump rotates, the impeller blades draw coolant into the pump chamber from the pump inlet (suction port). Due to the rotation of the impeller, the coolant in the pump chamber is pushed to the outer edge, forming a low-pressure area, thereby generating negative pressure.

[0083] It should be noted that, in this embodiment, the cabinet cooling system 100 includes a normal state and a leakage state.

[0084] When the rack cooling system 100 is in normal operation, the suction pump 130 can be kept either off or running at low power. It should be noted that when the suction pump 130 is off, coolant can flow, but it will encounter some resistance within the pump. When the suction pump 130 is off, the resistance to coolant flow in the rack heat exchange pipes 110 will be relatively high, but no additional power is needed to maintain coolant circulation in this mode. When the suction pump 130 is running at low power, it can provide some power to compensate for some or all of the resistance it generates in the rack heat exchange pipes 110. For example, if the suction pump 130 generates a resistance of 10 kPa in the rack heat exchange pipes 110, and simultaneously operates at low power to generate 10 kPa of power, the pressure in the rack heat exchange pipes 110 will remain constant, thus maintaining normal coolant circulation within the rack heat exchange pipes 110.

[0085] When the cabinet cooling system 100 is leaking, the suction pump 130 keeps running at high power to generate negative pressure in the cabinet heat exchange pipe 110, thereby making it difficult for the coolant in the cabinet heat exchange pipe 110 to flow out of the cabinet heat exchange pipe 110 or reducing the speed at which it flows out of the cabinet heat exchange pipe 110, thereby reducing the damage to the cabinet 400.

[0086] In one embodiment, reference Figure 4 As shown, the rack cooling system 100 also includes an auxiliary channel 140, on which a valve device 150 is installed. The auxiliary channel 140 is connected in parallel with the liquid suction pump 130, and when the valve device 150 is opened, the auxiliary channel 140 is connected to the rack heat exchange pipeline 110. It should be noted that the valve device 150 here can be a one-way valve, a solenoid valve, etc., and this application does not impose any restrictions.

[0087] Similarly, in this embodiment, the cabinet cooling system 100 also includes a normal state and a leakage state.

[0088] When the rack cooling system 100 is in normal operation, the valve device 150 is opened, and the auxiliary channel 140 is connected to the rack heat exchange pipeline 110 and the pressure-stabilizing liquid storage tank 120. That is, the coolant in the rack heat exchange pipeline 110 can directly bypass the suction pump 130 through the auxiliary channel 140, thereby reducing the resistance generated by the suction pump 130.

[0089] When the cabinet cooling system 100 is leaking, valve device 150 closes, and auxiliary channel 140 is disconnected from cabinet heat exchange piping 110. At this time, suction pump 130 operates at high power, while auxiliary channel 140 is blocked. This creates negative pressure in cabinet heat exchange piping 110 under the action of suction pump 130, making it difficult for coolant to flow out or reducing the outflow rate, thereby minimizing damage to cabinet 400. It should be noted that when valve device 150 is a solenoid valve, it can be directly closed, i.e., cutting off auxiliary channel 140. When valve device 150 is a check valve, it can be either closed or opened. Both methods prevent coolant from being drawn back from auxiliary channel 140 to suction pump 130 when suction pump 130 is open.

[0090] refer to Figure 3 , Figure 4 , Figure 5 as well as Figure 6 As shown, the cabinet heat exchange piping 110 includes a main channel 111 and multiple cabinet channels 112 that are interconnected. The pressure-stabilizing liquid storage tank 120 is connected to the main channel 111. The multiple cabinet channels 112 are arranged in parallel, and each cabinet channel 112 is used to cooperate with one or more cabinets 400. The liquid suction pump 130 is arranged in the cabinet channel 112 or the main channel 111 and is used to make the coolant flow from the cabinet channel 112 to the pressure-stabilizing liquid storage tank 120. The pipes of the cabinet channel 112 are attached to the cabinet 400 and are used to exchange heat with the cabinet 400; or, the cabinet 400 is provided with a coolant channel (not shown in the figure), and the pipes of the cabinet channel 112 are connected to the coolant channel.

[0091] In one embodiment, the number of suction pumps 130 can be set to one, and the suction pump 130 is disposed between the cabinet 400 and the pressure-stabilized liquid storage tank 120.

[0092] The suction pump 130 can be installed on any one of the main channel 111 or multiple cabinet channels 112. That is, the suction pump 130 can be installed on a branch channel where a single cabinet 400 is located, or on the main channel where multiple cabinets 400 converge. When the suction pump 130 is installed on a cabinet channel 112 where a single cabinet 400 is located, the cabinet 400 corresponding to that branch channel can house core components, such as the control center. Alternatively, it can be installed separately for cabinet channels 112 where leakage is more likely to occur based on past experience. This arrangement is more targeted and can improve the accuracy of leakage protection. When the suction pump 130 is installed on the main channel 111 where multiple cabinets 400 converge, the suction pump 130 can act on multiple cabinets 400 simultaneously, that is, the suction pump 130 can simultaneously generate negative pressure in the cabinet heat exchange pipes 110 of multiple cabinets 400. This arrangement allows a single liquid suction pump 130 to control the entire heat exchange pipeline 110 of the cabinet. Especially when multiple cabinets 400 experience leakage, it can generate negative pressure on the heat exchange pipeline 110 of multiple cabinets 400 at once.

[0093] Furthermore, in one embodiment, when there are multiple suction pumps 130, at least one suction pump 130 is located in the cabinet passage 112.

[0094] For example, refer to Figure 6 As shown, there are multiple suction pumps 130, with each cabinet channel 112 equipped with a suction pump 130. The suction pumps 130 are located between the cabinet 400 and the pressure-stabilized liquid storage tank 120. Figure 6 In the illustrated embodiment, the cabinet heat exchange piping 110 includes three cabinet channels 112. Each of the three cabinet channels 112 is connected to the cabinet 400 and is equipped with a liquid suction pump 130.

[0095] Based on the above configuration, this embodiment provides a corresponding suction pump 130 for each rack 400. When a leak occurs in the heat exchange pipe 110 of one rack 400, its negative pressure can be adjusted individually without affecting the corresponding adjacent racks 400. For example, when a leak occurs in the pipe of one rack passage 112, the negative pressure of that rack passage 112 can be adjusted individually by turning on the suction pump 130 on that rack passage 112, thus without affecting the racks 400 on the other two adjacent rack passages 112.

[0096] In this embodiment, when there are multiple suction pumps 130, the total resistance to the coolant within the cabinet heat exchange pipes 110 is very large due to the excessive number of suction pumps 130 installed in the heat exchange pipes 110. Furthermore, operating multiple suction pumps 130 simultaneously at low power would consume a large amount of energy. (Reference) Figure 6As shown in this embodiment, multiple auxiliary channels 140 and multiple valve devices 150 are provided in the cabinet cooling system 100. Each auxiliary channel 140 is provided with a valve device 150, and each suction pump 130 is equipped with an auxiliary channel 140 and a valve device 150. Furthermore, the auxiliary channel 140 and the suction pump 130 are connected in parallel. When the valve device 150 is opened, the auxiliary channel 140 is connected to the cabinet heat exchange pipeline 110.

[0097] Based on the above configuration, each suction pump 130 is equipped with an auxiliary channel 140 and a valve device 150. When the cabinet cooling system 100 is in normal condition, the coolant flows through the auxiliary channel 140, thereby reducing the resistance of the coolant in the cabinet heat exchange pipeline 110 and enabling it to operate normally.

[0098] In this embodiment, the cabinet cooling system 100 may also be equipped with multiple cabinet liquid supply pumps 160, which are respectively connected to the cabinet heat exchange pipeline 110. Each cabinet 400 is equipped with a cabinet liquid supply pump 160, and each cabinet liquid supply pump 160 is used to supply liquid to the cabinet 400 it is paired with.

[0099] In this embodiment, each cabinet 400 is equipped with a separate cabinet liquid supply pump 160 on its branch line. This arrangement allows the separate cabinet liquid supply pump 160 to be shut down while the suction pump 130 is turned on in the event of a leak, thereby increasing the negative pressure at the cabinet 400 and minimizing the damage caused by the leak.

[0100] In one embodiment, reference Figure 5 and Figure 6 As shown, the rack cooling system 100 also includes a leakage sensor 170 and a controller (not shown in the figure). The leakage sensor 170 is connected to the controller and is disposed in the rack 400. The leakage sensor 170 is used to acquire leakage signals of the rack heat exchange pipes 110. The leakage signals here include a first signal and a second signal, wherein the first signal indicates that the rack heat exchange pipes 110 are not leaking, and the second signal indicates that the rack heat exchange pipes 110 are leaking. Alternatively, in other embodiments, the first signal indicates that the leakage value of the rack heat exchange pipes 110 is less than a preset value, and the second signal indicates that the leakage value of the rack heat exchange pipes 110 is greater than the preset value.

[0101] The controller is connected to the suction pump 130. The controller is used to receive leakage signals and send operating signals to the suction pump 130. It should be noted that the connection between the controller and the suction pump 130 can be a communication connection or an electrical connection between the two, and this application does not impose any restrictions.

[0102] Based on the above settings, when the leakage sensor 170 transmits the first signal, the controller controls the suction pump 130 to shut down, or the controller controls the suction pump 130 to operate at low power. When the leakage sensor 170 transmits the second signal, the controller controls the suction pump 130 to operate at high power, so that the cabinet heat exchange pipe 110 is in a negative pressure state, thereby making it difficult for the coolant in the cabinet heat exchange pipe 110 to flow out or reducing the flow rate, thereby reducing the risk of damage to the cabinet 400.

[0103] In this embodiment, reference continues to be made to Figure 5 and Figure 6 As shown, the controller can also be connected to the valve device 150. The controller is used to receive leakage signals and send working signals to the valve device 150. It should be noted that the connection between the controller and the valve device 150 can be a communication connection or an electrical connection, and this application does not impose any restrictions.

[0104] In this embodiment, the controller is connected to the valve device 150. Therefore, when the leakage sensor 170 transmits the first signal, the controller controls the suction pump 130 to close and simultaneously controls the valve device 150 to open. At this time, the heat exchange pipe 110 of the cabinet flows back through the auxiliary channel 140, thereby reducing the resistance within the heat exchange pipe 110. When the leakage sensor 170 transmits the second signal, the controller controls the suction pump 130 to operate at high power. At the same time, the controller controls the valve device 150 to close. At this time, the coolant in the heat exchange pipe 110 of the cabinet flows through the suction pump 130, which puts the heat exchange pipe 110 of the cabinet under negative pressure. This makes it difficult for the coolant in the heat exchange pipe 110 to flow out or reduces the flow rate, thereby reducing the risk of damage to the cabinet 400.

[0105] In one embodiment, reference Figures 2-6 As shown, the cooling device 10 also includes a cooling supply system 200 and a heat exchanger 300. The cooling supply system 200 includes a supply pipe 210 and a cooling section 220. The cooling section 220 is connected to the supply pipe 210 and is used to reduce the heat of the coolant in the supply pipe 210. The cooling supply system 200 and the rack cooling system 100 are respectively connected to the heat exchanger 300 for heat exchange. The cooling supply system 200 can continuously cool the rack cooling system 100, thereby enabling the rack 400, which works in conjunction with the rack cooling system 100, to be continuously cooled, ensuring the normal operation of the rack 400.

[0106] It should be noted that the cooling section 220 includes refrigeration devices such as dry coolers or cooling towers. Dry coolers cool the coolant flowing through the heat exchanger through forced air convection. A dry cooler typically contains a set of coils within which the coolant flows, while an external fan forces air through the coils, cooling the coolant through heat exchange between the air and the coolant. Cooling towers cool the coolant flowing through the heat exchanger through water evaporation. Cooling towers typically contain a packing material or spray system. The coolant is dispersed into fine water droplets by the spray system, exchanging heat with the air passing through the packing material. The evaporation of the water carries away heat, thus cooling the coolant.

[0107] Meanwhile, the heat exchanger 300 here can be a plate heat exchanger. A plate heat exchanger achieves heat exchange between two fluids through a series of parallel metal plates, with the two fluids flowing in opposite directions in the channels formed between the plates, thus achieving efficient heat transfer. This plate heat exchanger has four inlets and outlets, two for the hot fluid and two for the cold fluid. The supply line 210 and the cabinet heat exchange line 110 are respectively connected to the four inlets and outlets of the plate heat exchanger for heat exchange.

[0108] In addition to the aforementioned cooling device 10, this application also proposes a control method for a cabinet cooling system 100. The components used in the control method for the cabinet cooling system 100 include a cabinet heat exchange pipeline 110, a pressure-stabilizing liquid storage tank 120, a liquid suction pump 130, an auxiliary channel 140, a valve device 150, a leakage sensor 170, and a controller.

[0109] Meanwhile, the connection relationship between the various components is as follows: the suction pump 130 is connected to the heat exchange pipeline 110 of the cabinet and is located between the cabinet 400 and the pressure-stabilizing liquid storage tank 120. A valve device 150 is provided on the auxiliary channel 140. The auxiliary channel 140 is connected in parallel with the suction pump 130. When the valve device 150 is opened, the auxiliary channel 140 is connected to the heat exchange pipeline 110 of the cabinet.

[0110] The leakage sensor 170 is used to acquire leakage signals of the heat exchange pipe 110 in the cabinet. The leakage signals include a first signal and a second signal, wherein the first signal indicates that the heat exchange pipe 110 in the cabinet is not leaking, and the second signal indicates that the heat exchange pipe 110 in the cabinet is leaking.

[0111] When the controller receives the first signal, it sends an open signal to the valve device 150 and a close signal to the suction pump 130. Upon receiving the open signal, the valve device 150 is in the open state. Simultaneously, upon receiving the close signal, the suction pump 130 is in the closed state. At this time, the heat exchange piping 110 in the cabinet returns through the auxiliary channel 140, thereby reducing the resistance within the heat exchange piping 110.

[0112] When the controller receives the second signal, it sends a closing signal to the valve device 150 and an opening signal to the suction pump 130. Upon receiving the signals, the valve device 150 is in the closed state, meaning the auxiliary channel 140 is closed. Simultaneously, the suction pump 130 is in the open state upon receiving the signal. At this time, the coolant in the cabinet heat exchange pipe 110 flows through the suction pump 130, which creates a negative pressure in the cabinet heat exchange pipe 110. This makes it difficult for the coolant to flow out of the cabinet heat exchange pipe 110, or reduces the outflow rate, thereby minimizing potential damage to the cabinet 400.

[0113] This application also proposes a server device that includes the rack cooling system 100 as described in the above embodiments. Since the server device includes the rack cooling system 100, it also possesses the advantages and functions of the rack cooling system 100.

[0114] It should be noted that the technical solutions or features described in the above embodiments can be combined or complemented by each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A cabinet cooling system for use with a cabinet and a cooling supply system, characterized in that, The cabinet cooling system includes: The cabinet heat exchange piping is used to cooperate with the cooling supply system for heat exchange and is configured to cooperate with the cabinet for cooling the cabinet. A pressure-stabilizing liquid storage tank is used to store coolant, and the pressure-stabilizing liquid storage tank is connected to the heat exchange pipeline of the cabinet; The pressure-stabilizing storage tank is used to connect to a preset pressure, wherein the preset pressure is less than a first preset threshold and greater than a second preset threshold.

2. The cabinet cooling system as described in claim 1, characterized in that, The first preset threshold is less than 150 kPa; and / or the second preset threshold is greater than 0 kPa.

3. The cabinet cooling system as described in claim 1, characterized in that, The cabinet cooling system includes a liquid suction pump, which is connected to the cabinet heat exchange pipeline and located between the cabinet and the pressure-stabilizing liquid storage tank, and is used to generate negative pressure in the cabinet heat exchange pipeline.

4. The cabinet cooling system as described in claim 3, characterized in that, The cabinet cooling system also includes an auxiliary channel, on which a valve device is installed. The auxiliary channel is connected in parallel with the liquid suction pump, and when the valve device is opened, the auxiliary channel is connected to the cabinet heat exchange pipeline. The cabinet cooling system includes a normal state and a leakage state; When the cabinet cooling system is in normal condition, the valve device is opened, and the auxiliary channel is connected to the cabinet heat exchange pipeline and the pressure stabilizing liquid storage tank. When the cabinet cooling system is leaking, the valve device closes and the auxiliary channel is disconnected from the cabinet heat exchange pipeline.

5. The cabinet cooling system as described in claim 3, characterized in that, The heat exchange pipeline of the cabinet includes a main channel and multiple cabinet channels that are interconnected. The pressure-stabilizing liquid storage tank is connected to the main channel. The multiple cabinet channels are arranged in parallel. Each cabinet channel is used to cooperate with one or more cabinets. The liquid suction pump is installed in the cabinet channel or the main channel and is used to allow the coolant to flow from the cabinet channel to the pressure-stabilizing storage tank.

6. The cabinet cooling system as described in claim 5, characterized in that, When there are multiple suction pumps, at least one suction pump is located in the cabinet passageway.

7. The cabinet cooling system as described in claim 4, characterized in that, The cabinet cooling system also includes multiple auxiliary channels and multiple valve devices. Each auxiliary channel is equipped with a valve device, and each liquid suction pump is equipped with the auxiliary channel and the valve device. Furthermore, the auxiliary channel and the liquid suction pump are connected in parallel. When the valve device is opened, the auxiliary channel is connected to the heat exchange pipeline of the cabinet.

8. The cabinet cooling system as described in any one of claims 5 and 6, characterized in that, The cabinet cooling system also includes multiple cabinet liquid supply pumps, which are respectively connected to the cabinet channel. Each cabinet liquid supply pump is used to supply liquid to the cabinet it is paired with.

9. The cabinet cooling system as described in claim 3, characterized in that, The cabinet cooling system also includes a leakage sensor and a controller. The leakage sensor is connected to the controller and is installed in the cabinet. The leakage sensor is used to acquire leakage signals in the cabinet's heat exchange pipes. The controller is connected to the suction pump and is used to receive the leakage signal and send a working signal to the suction pump.

10. The cabinet cooling system as described in claim 9, characterized in that, The cabinet cooling system also includes an auxiliary channel, on which a valve device is installed, and the auxiliary channel is connected in parallel with the liquid suction pump. The controller is connected to the valve device, and the controller is used to receive the leakage signal and send a working signal to the valve device.

11. The cabinet cooling system as described in claim 1, characterized in that, The pressure-stabilizing liquid storage tank is connected to the atmosphere.

12. The cabinet cooling system as described in claim 1, characterized in that, The pressure-stabilizing liquid storage tank includes a liquid storage space, which includes a top and a bottom. The coolant flows out from the bottom of the liquid storage space to the heat exchange pipeline of the cabinet, and flows into the liquid storage space from the top of the heat exchange pipeline of the cabinet.

13. A cooling device, characterized in that, The cooling device includes the cabinet cooling system as described in any one of claims 1-12.

14. The cooling device as claimed in claim 13, characterized in that, The cooling device further includes a cooling supply system and a heat exchanger. The cooling supply system includes a supply pipeline and a cooling section. The cooling section is connected to the supply pipeline and is used to reduce the heat of the coolant in the supply pipeline. The cooling supply system and the cabinet cooling system are respectively connected to the heat exchanger for heat exchange.

15. The cooling device as claimed in claim 14, characterized in that, The cooling unit includes a dry cooler and / or a cooling tower, which is connected to the supply pipeline and is used to reduce the heat of the coolant in the supply pipeline.

16. A server device, characterized in that, The server device includes a server rack and a cooling device as described in any one of claims 13-15, wherein the server rack and the cooling device are configured in conjunction.

17. The server apparatus as claimed in claim 16, characterized in that, The heat exchange piping of the cabinet is attached to the cabinet and is used for heat exchange with the cabinet; or, the cabinet is provided with a coolant channel, and the heat exchange piping of the cabinet is connected to the coolant channel.

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