Liquid cooling system and control method thereof

Abstract

The present application provides a liquid cooling system and a control method for the liquid cooling system. The liquid cooling system includes: a first liquid cooling device, including a first refrigeration module and a first flow path, the first refrigeration module being configured to cool a first fluid in the first flow path, the first fluid being configured to cool a heat generating device; a second liquid cooling device, including a second refrigeration module and a second flow path, the second refrigeration module being configured to cool a second fluid in the second flow path, the second fluid being configured to cool an indoor space; a heat exchanger, connected between the first flow path and the second flow path; and a liquid cooling system operation device, including a heat exchanger control unit, the heat exchanger control unit being configured to operably connect or disconnect the heat exchanger from the first flow path and / or operably connect or disconnect the heat exchanger from the second flow path, so that the first flow path and the second flow path have a heat exchange state and a thermal isolation state.

Description

Technical Field

[0001] The present application relates to a liquid cooling system and a control method for the liquid cooling system. Background Art

[0002] Heat generating devices, such as electrical devices, widely have heat fault problems, which directly affect the efficiency of the heat generating devices themselves and their performance of serving society safely. Especially some large-scale centralized heat generating devices need to operate without shutdown throughout the year. At this time, the reliability of the operation of the heat generating devices is particularly important.

[0003] In the related art, liquid cooling units are generally used to cool large-scale centralized heat generating devices. The liquid cooling units have complex structures, diverse internal components, and the devices are prone to failure. In order to ensure the heat dissipation of the centralized heat generating devices, multiple modules are provided inside the liquid cooling units. When operating, not all the modules are turned on, and a spare module is used to cope with the occurrence of failures. When the liquid cooling unit in the related art fails and cannot be started, only power-off maintenance can be carried out. However, the heat generating device cannot stop operating and keeps generating heat, and the heat generating device is easily damaged due to high temperature.

[0004] The above statements are only used to provide background technical information related to the present application, and do not necessarily constitute prior art. Summary of the Invention

[0005] The purpose of the present application is to provide a liquid cooling system and a control method for the liquid cooling system, which are beneficial to reducing the possibility of damage to the heat generating device due to high temperature.

[0006] The first aspect of the present application provides a liquid cooling system, including:

[0007] A first liquid cooling device, including a first refrigeration module and a first flow path. The first refrigeration module is configured to cool a first fluid in the first flow path. The first flow path includes a first inlet flow path for delivering the first fluid to the first refrigeration module and a first outlet flow path for outputting the first fluid from the first refrigeration module. The first fluid is configured to cool a heat generating device;

[0008] A second liquid cooling device, including a second refrigeration module and a second flow path. The second refrigeration module is configured to cool a second fluid in the second flow path. The second flow path includes a second inlet flow path for delivering the second fluid to the second refrigeration module and a second outlet flow path for outputting the second fluid from the second refrigeration module. The second fluid is configured to cool the indoor space;

[0009] A heat exchanger, connected between the first flow path and the second flow path; and

[0010] A liquid cooling system control device includes a heat exchanger control unit configured to operably connect or disconnect the heat exchanger from the first flow path and / or operably connect or disconnect the heat exchanger from the second flow path, so that the first flow path and the second flow path have a heat exchange state and a thermal isolation state. In the heat exchange state, the first flow path and the second flow path are connected to the heat exchanger so that the first fluid and the second fluid exchange heat in the heat exchanger. In the isolation state, at least one of the first flow path and the second flow path is disconnected from the heat exchanger so that the first fluid and the second fluid are thermally isolated.

[0011] In the liquid cooling system of some embodiments, the heat exchanger is connected between the first inlet flow path and the second outlet flow path.

[0012] In the liquid cooling system of some embodiments, the second liquid cooling device is configured to cool the indoor space where the heat generating device is located.

[0013] In the liquid cooling system of some embodiments,

[0014] The heat exchanger includes a first heat exchange flow path, a second heat exchange flow path, a first heat exchanger port and a second heat exchanger port communicating with the first heat exchange flow path, and a third heat exchanger port and a fourth heat exchanger port communicating with the second heat exchange flow path;

[0015] The heat exchanger control unit includes at least one of a first control valve, a second control valve, a third control valve, and a fourth control valve. The first control valve is connected between the first heat exchanger port and the first flow path to control the connection or disconnection between the first heat exchanger port and the first flow path. The second control valve is connected between the second heat exchanger port and the first flow path to control the connection or disconnection between the second heat exchanger port and the first flow path. The third control valve is connected between the third heat exchanger port and the second flow path to control the connection or disconnection between the third heat exchanger port and the second flow path. The fourth control valve is connected between the fourth heat exchanger port and the second flow path to control the connection or disconnection between the fourth heat exchanger port and the second flow path.

[0016] In the liquid cooling system of some embodiments,

[0017] The first liquid cooling device includes at least one first refrigeration module, and the first refrigeration module includes at least one first refrigerant circulation flow path configured to cool the first fluid;

[0018] The second liquid cooling device includes at least one second refrigeration module, and the second refrigeration module includes at least one second refrigerant circulation flow path configured to cool the second fluid.

[0019] In the liquid cooling system of some embodiments,

[0020] at least one of the first refrigeration modules is the same as at least one of the second refrigeration modules; and / or

[0021] at least one of the first refrigerant circulation paths is the same as at least one of the second refrigerant circulation paths.

[0022] In the liquid cooling system of some embodiments,

[0023] the first liquid cooling device includes more than two of the first refrigeration modules, and the more than two first refrigeration modules are connected in parallel; and / or

[0024] the first refrigeration module includes more than two of the first refrigerant circulation paths, and the more than two first refrigerant circulation paths are connected in parallel; and / or

[0025] the second liquid cooling device includes more than two of the second refrigeration modules, and the more than two second refrigeration modules are connected in parallel; and / or

[0026] the second refrigeration module includes more than two of the second refrigerant circulation paths, and the more than two second refrigerant circulation paths are connected in parallel.

[0027] In the liquid cooling system of some embodiments,

[0028] the first liquid cooling device includes more than two of the first refrigeration modules, and at least two of the first refrigeration modules are the same; and / or

[0029] the first refrigeration module includes more than two of the first refrigerant circulation paths, and at least two of the first refrigerant circulation paths are the same; and / or

[0030] the second liquid cooling device includes more than two of the second refrigeration modules, and at least two of the second refrigeration modules are the same; and / or

[0031] the second refrigeration module includes more than two of the second refrigerant circulation paths, and at least two of the second refrigerant circulation paths are the same.

[0032] In the liquid cooling system of some embodiments,

[0033] The first liquid cooling device includes more than two of the first refrigeration modules. The first flow path includes a first delivery portion and more than two first heat exchange portions corresponding to the more than two first refrigeration modules. The first heat exchange portions are configured to perform heat exchange with the corresponding first refrigeration modules to cool the first fluid. The liquid cooling system control device includes a first refrigeration module control unit, which is disposed between each of the heat exchange portions and the delivery portion and is configured to control the connection or disconnection between the first heat exchange portions and the first delivery portion; and / or

[0034] The second liquid cooling device includes more than two of the second refrigeration modules. The second flow path includes a second delivery portion and more than two second heat exchange portions corresponding to the more than two second refrigeration modules. The second heat exchange portions are configured to perform heat exchange with the corresponding second refrigeration modules to cool the second fluid. The liquid cooling system control device includes a second refrigeration module control unit, which is disposed between each of the heat exchange portions and the delivery portion and is configured to control the connection or disconnection between the second heat exchange portions and the second delivery portion.

[0035] In the liquid cooling system of some embodiments, the number of the first refrigeration modules is greater than the number of the second refrigeration modules.

[0036] In the liquid cooling system of some embodiments,

[0037] The first liquid cooling device includes four of the first refrigeration modules;

[0038] Each of the first refrigeration modules includes two of the first refrigerant circulation paths;

[0039] The second liquid cooling device includes one of the second refrigeration modules;

[0040] Each of the second refrigeration modules includes two of the second refrigerant circulation paths.

[0041] In the liquid cooling system of some embodiments,

[0042] The first liquid cooling device includes a first hydraulic module. The first hydraulic module includes a first liquid delivery flow path and a first liquid return flow path. The first liquid delivery flow path is connected in series to the first inlet flow path, and the first liquid return flow path is connected in series to the first outlet flow path. The first hydraulic module includes a first pump, and the first pump is disposed on the first liquid delivery flow path or the first liquid return flow path and is configured to drive the first fluid to flow in the first flow path; and / or

[0043] The second liquid cooling device includes a second hydraulic module, the second hydraulic module includes a second liquid supply flow path and a second liquid return flow path, the second liquid supply flow path is connected in series to the second inlet flow path, the second liquid return flow path is connected in series to the second outlet flow path, the second hydraulic module includes a second pump, and the second pump is arranged on the second liquid supply flow path or the second liquid return flow path and is configured to drive the second fluid to flow in the second flow path.

[0044] In the liquid cooling system of some embodiments, the first hydraulic module and the second hydraulic module are the same.

[0045] In the liquid cooling system of some embodiments, the liquid cooling system further includes a control device, and the control device is in signal connection with the liquid cooling system operation device and is configured to control the operation of the liquid cooling system operation device.

[0046] The second aspect of the present application provides a control method for the liquid cooling system described in the first aspect of the present application, including:

[0047] When both the first liquid cooling device and the second liquid cooling device are in an operating state, operate the heat exchanger control unit to make the first flow path and the second flow path in the heat isolation state;

[0048] When one of the first liquid cooling device and the second liquid cooling device is in an operating state and the other is in a stopped operating state, operate the heat exchanger control unit to make the first flow path and the second flow path in the heat exchange state.

[0049] In the control method of some embodiments,

[0050] The heat exchanger includes a first heat exchange flow path, a second heat exchange flow path, a first heat exchanger port and a second heat exchanger port communicated with the first heat exchange flow path, and a third heat exchanger port and a fourth heat exchanger port communicated with the second heat exchange flow path;

[0051] The heat exchanger control unit includes at least one of a first control valve 411, a second control valve 412, a third control valve 413 and a fourth control valve 414. The first control valve 411 is connected between the first heat exchanger port and the first flow path to control the connection or disconnection between the first heat exchanger port and the first flow path. The second control valve 412 is connected between the second heat exchanger port and the first flow path to control the connection or disconnection between the second heat exchanger port and the first flow path. The third control valve 413 is connected between the third heat exchanger port and the second flow path to control the connection or disconnection between the third heat exchanger port and the second flow path. The fourth control valve 414 is connected between the fourth heat exchanger port and the second flow path to control the connection or disconnection between the fourth heat exchanger port and the second flow path;

[0052] The control method includes:

[0053] Operating the heat exchanger control unit to put the first flow path and the second flow path in the thermal isolation state includes closing the first control valve 411, the second control valve 412, the third control valve 413, and the fourth control valve 414;

[0054] Operating the heat exchanger control unit to put the first flow path and the second flow path in the heat exchange state includes opening the first control valve 411, the second control valve 412, the third control valve 413, and the fourth control valve 414.

[0055] In the control method of some embodiments,

[0056] The first liquid cooling device includes at least one first refrigeration module, the first refrigeration module includes at least one first refrigerant circulation flow path, and the first refrigerant circulation flow path is configured to cool the first fluid;

[0057] The second liquid cooling device includes at least one second refrigeration module, the second refrigeration module includes at least one second refrigerant circulation flow path, and the second refrigerant circulation flow path is configured to cool the second fluid;

[0058] Wherein, the control method includes:

[0059] The first liquid cooling device includes more than two of the first refrigeration modules. When the first liquid cooling device is in an operating state, some of the more than two first refrigeration modules are in an operating state, and the rest are in a standby state; and / or

[0060] The first refrigeration module includes more than two of the first refrigerant circulation flow paths. When the first liquid cooling device is in an operating state, some of the more than two first refrigerant circulation flow paths are in an operating state, and the rest are in a standby state; and / or

[0061] The second liquid cooling device includes more than two of the second refrigeration modules. When the second liquid cooling device is in an operating state, some of the more than two second refrigeration modules are in an operating state, and the rest are in a standby state; and / or

[0062] The second refrigeration module includes more than two of the second refrigerant circulation flow paths. When the second liquid cooling device is in an operating state, some of the more than two second refrigerant circulation flow paths are in an operating state, and the rest are in a standby state.

[0063] In the control method of some embodiments,

[0064] The first liquid cooling device includes more than two of the first refrigeration modules. When the first liquid cooling device switches from the stopped operating state to the operating state, the first refrigeration module with the shorter total operating time among the more than two first refrigeration modules is preferentially in the operating state; and / or

[0065] The first refrigeration module includes more than two of the first refrigerant circulation paths. When the first liquid cooling device switches from the stopped operating state to the operating state, the first refrigerant circulation path with the shorter total operating time among the more than two first refrigerant circulation paths is preferentially in the operating state; and / or

[0066] The second liquid cooling device includes more than two of the second refrigeration modules. When the second liquid cooling device switches from the stopped operating state to the operating state, the second refrigeration module with the shorter total operating time among the more than two second refrigeration modules is preferentially in the operating state; and / or

[0067] The second refrigeration module includes more than two of the second refrigerant circulation paths. When the second liquid cooling device switches from the stopped operating state to the operating state, the second refrigerant circulation path with the shorter total operating time among the more than two second refrigerant circulation paths is preferentially in the operating state.

[0068] In the control method of some embodiments,

[0069] The first liquid cooling device includes more than two of the first refrigeration modules. When the operating time of the first liquid cooling device exceeds a first predetermined time, at least one of the first refrigeration modules in the operating state is switched to the standby state, and at least one of the first refrigeration modules in the standby state is switched to the operating state; and / or

[0070] The first refrigeration module includes more than two of the first refrigerant circulation paths. When the operating time of the first liquid cooling device exceeds a second predetermined time, at least one of the first refrigerant circulation paths in the operating state is switched to the standby state, and at least one of the first refrigerant circulation paths in the standby state is switched to the operating state; and / or

[0071] The second liquid cooling device includes more than two of the second refrigeration modules. When the operating time of the second liquid cooling device exceeds a third predetermined time, at least one of the second refrigeration modules in the operating state is switched to the standby state, and at least one of the second refrigeration modules in the standby state is switched to the operating state; and / or

[0072] The second refrigeration module includes more than two of the second refrigerant circulation flow paths. When the operation duration of the second liquid cooling device exceeds a fourth predetermined duration, at least one of the second refrigerant circulation flow paths in an operating state is switched to a standby state, and at least one of the second refrigerant circulation flow paths in a standby state is switched to an operating state.

[0073] Based on the liquid cooling system and the control method of the liquid cooling system provided by the present application, when both the first liquid cooling device and the second liquid cooling device are in an operating state, the heat exchanger control unit can be manipulated to make the first flow path and the second flow path in a thermally isolated state; and when one of the first liquid cooling device and the second liquid cooling device is in an operating state and the other is in a stopped operating state, the heat exchanger control unit can be manipulated to make the first flow path and the second flow path in a heat exchange state. Therefore, the first liquid cooling device and the second liquid cooling device can be used as backups for each other, which is beneficial to providing a refrigeration function by the second liquid cooling device when the first liquid cooling device is in a stopped operating state, thereby facilitating the cooling of the heat generating device and avoiding equipment paralysis.

[0074] Through the following detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings, other features and advantages of the present application will become clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0075] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0076] Figure 1 It is a schematic diagram of the principle of the liquid cooling system according to an embodiment of the present application.

[0077] Figure 2 is Figure 1 A schematic diagram of the principle of the first refrigeration module of the first liquid cooling device of the illustrated embodiment.

[0078] Figure 3 is Figure 1 A schematic diagram of the principle of the first hydraulic module of the first liquid cooling device of the illustrated embodiment.

[0079] Figure 4 It is a schematic diagram of the control principle of the control method of the liquid cooling system according to an embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0080] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part rather than all of the embodiments of the present application. The following description of at least one exemplary embodiment is actually illustrative only and in no way limits the present application and its application or use. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0081] Unless otherwise specifically stated, the relative arrangements, numerical expressions and values of the components and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods and devices should be regarded as part of the specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0082] In the description of the present application, it should be understood that the use of terms such as "first" and "second" to define components is only for the convenience of differentiating the corresponding components. Without further statement, the above terms have no special meaning and thus cannot be construed as limiting the protection scope of the present application.

[0083] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the orientation words is usually based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus cannot be construed as limiting the protection scope of the present application; the orientation words "inside" and "outside" refer to the inside and outside relative to the contour of each component itself.

[0084] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0085] As Figures 1 to 3 shown, the embodiment of the present application provides a liquid cooling system. The liquid cooling system includes a first liquid cooling device 100, a second liquid cooling device 200, a heat exchanger 300 and a liquid cooling system control device.

[0086] The first liquid cooling device 100 includes a first refrigeration module 110 and a first flow path 130. The first refrigeration module 110 is configured to cool a first fluid within the first flow path 130. The first flow path 130 includes a first inlet flow path 131 for delivering the first fluid to the first refrigeration module 110 and a first outlet flow path 132 for outputting the first fluid from the first refrigeration module 110. The first fluid is configured to cool a heat generating device.

[0087] The second liquid cooling device 200 includes a second refrigeration module 210 and a second flow path 230. The second refrigeration module 210 is configured to cool a second fluid within the second flow path 230. The second flow path 230 includes a second inlet flow path 231 for delivering the second fluid to the second refrigeration module 210 and a second outlet flow path 232 for outputting the second fluid from the second refrigeration module 210. The second fluid is configured to cool an indoor space.

[0088] The heat exchanger 300 is connected between the first flow path 130 and the second flow path 230.

[0089] The liquid cooling system control device includes a heat exchanger control unit. The heat exchanger control unit is configured to operably connect or disconnect the heat exchanger 300 from the first flow path 130 and / or operably connect or disconnect the heat exchanger 300 from the second flow path 230, so that the first flow path 130 and the second flow path 230 have a heat exchange state and a thermal isolation state. In the heat exchange state, the first flow path 130 and the second flow path 230 are connected to the heat exchanger 300 so that the first fluid and the second fluid exchange heat within the heat exchanger 300. In the isolation state, at least one of the first flow path 130 and the second flow path 230 is disconnected from the heat exchanger 300, so that the first fluid and the second fluid are thermally isolated.

[0090] Based on the liquid cooling system and the control method of the liquid cooling system provided by the present application, when both the first liquid cooling device 100 and the second liquid cooling device 200 are in an operating state, the heat exchanger control unit can be manipulated to make the first flow path 130 and the second flow path 230 in a thermal isolation state; and when one of the first liquid cooling device 100 and the second liquid cooling device 200 is in an operating state and the other is in a stopped operating state, the heat exchanger control unit can be manipulated to make the first flow path 130 and the second flow path 230 in a heat exchange state. Therefore, the first liquid cooling device 100 and the second liquid cooling device 200 can be used as backups for each other, which is beneficial to providing a refrigeration function by the second liquid cooling device 200 when the first liquid cooling device 100 is in a stopped operating state, thereby facilitating the cooling of the heat generating device and avoiding equipment paralysis.

[0091] The first fluid and the second fluid can be the same or different. For example, both the first fluid and the second fluid can be water.

[0092] As Figure 1As shown, in the liquid cooling system of some embodiments, the heat exchanger 300 is connected between the first inflow channel 131 and the second outflow channel 232.

[0093] In the liquid cooling system of some embodiments, the second liquid cooling device 200 is configured to cool the indoor space where the heat generating device is located.

[0094] As Figure 1 shown, in the liquid cooling system of some embodiments, the heat exchanger 300 includes a first heat exchange channel, a second heat exchange channel, a first heat exchanger port and a second heat exchanger port communicating with the first heat exchange channel, and a third heat exchanger port and a fourth heat exchanger port communicating with the second heat exchange channel. The heat exchanger control unit includes at least one of a first control valve 411, a second control valve 412, a third control valve 413, and a fourth control valve 414. The first control valve 411 is connected between the first heat exchanger port and the first channel 130 to control the connection or disconnection between the first heat exchanger port and the first channel 130. The second control valve 412 is connected between the second heat exchanger port and the first channel 130 to control the connection or disconnection between the second heat exchanger port and the first channel 130. The third control valve 413 is connected between the third heat exchanger port and the second channel 230 to control the connection or disconnection between the third heat exchanger port and the second channel 230. The fourth control valve 414 is connected between the fourth heat exchanger port and the second channel 230 to control the connection or disconnection between the fourth heat exchanger port and the second channel 230.

[0095] As Figure 1 and Figure 2 shown, in the liquid cooling system of some embodiments, the first liquid cooling device 100 includes at least one first refrigeration module 110, and the first refrigeration module 110 includes at least one first refrigerant circulation channel 111, and the first refrigerant circulation channel 111 is configured to cool the first fluid. The second liquid cooling device 200 includes at least one second refrigeration module 210, and the second refrigeration module 210 includes at least one second refrigerant circulation channel, and the second refrigerant circulation channel is configured to cool the second fluid.

[0096] As Figure 1 and Figure 2 shown, in the liquid cooling system of some embodiments, at least one first refrigeration module 110 is the same as at least one second refrigeration module 210; and / or at least one first refrigerant circulation channel 111 is the same as at least one second refrigerant circulation channel.

[0097] As Figure 1 and Figure 2As shown, in the liquid cooling system of some embodiments, the first liquid cooling device 100 includes more than two first refrigeration modules 110, and the more than two first refrigeration modules 110 are connected in parallel; and / or the first refrigeration module 110 includes more than two first refrigerant circulation flow paths 111, and the more than two first refrigerant circulation flow paths 111 are connected in parallel; and / or the second liquid cooling device 200 includes more than two second refrigeration modules 210, and the more than two second refrigeration modules 210 are connected in parallel; and / or the second refrigeration module 210 includes more than two second refrigerant circulation flow paths, and the more than two second refrigerant circulation flow paths are connected in parallel.

[0098] As Figure 1 and Figure 2 As shown, in the liquid cooling system of some embodiments, the first liquid cooling device 100 includes more than two first refrigeration modules 110, and at least two of the first refrigeration modules 110 are the same; and / or the first refrigeration module 110 includes more than two first refrigerant circulation flow paths 111, and at least two of the first refrigerant circulation flow paths 111 are the same; and / or the second liquid cooling device 200 includes more than two second refrigeration modules 210, and at least two of the second refrigeration modules 210 are the same; and / or the second refrigeration module 210 includes more than two second refrigerant circulation flow paths, and at least two of the second refrigerant circulation flow paths are the same.

[0099] As Figure 1 As shown, in the liquid cooling system of some embodiments, the first liquid cooling device 100 includes more than two first refrigeration modules 110. The first flow path 130 includes a first conveying portion and more than two first heat exchange portions corresponding to the more than two first refrigeration modules 110. The first heat exchange portions are configured to perform heat exchange with the corresponding first refrigeration modules 110 to cool the first fluid. The liquid cooling system control device includes a first refrigeration module control unit. The first refrigeration module control unit is disposed between each heat exchange portion and the conveying portion and is configured to control the connection or disconnection between the first heat exchange portion and the first conveying portion; and / or the second liquid cooling device 200 includes more than two second refrigeration modules 210. The second flow path 230 includes a second conveying portion and more than two second heat exchange portions corresponding to the more than two second refrigeration modules 210. The second heat exchange portions are configured to perform heat exchange with the corresponding second refrigeration modules 210 to cool the second fluid. The liquid cooling system control device includes a second refrigeration module control unit. The second refrigeration module control unit is disposed between each heat exchange portion and the conveying portion and is configured to control the connection or disconnection between the second heat exchange portion and the second conveying portion.

[0100] As Figure 1 As shown, the first refrigeration module control unit includes a fifth control valve 421 and a sixth control valve 422, and the second refrigeration module control unit includes a seventh control valve 431 and an eighth control valve 432. The types of the fifth to eighth control valves can be set as needed. For example, they can be globe valves, butterfly valves, ball valves, etc.

[0101] As Figure 1 shown, in the liquid cooling system of some embodiments, the number of the first refrigeration modules 110 is greater than that of the second refrigeration modules 210.

[0102] As Figure 1 shown, in the liquid cooling system of some embodiments, the first liquid cooling device 100 includes four first refrigeration modules 110; each first refrigeration module 110 includes two first refrigerant circulation flow paths 111; the second liquid cooling device 200 includes one second refrigeration module 210; and each second refrigeration module 210 includes two second refrigerant circulation flow paths.

[0103] In the embodiments of the present application, each liquid cooling device of the liquid cooling unit can adopt a multi-refrigeration module design, and each refrigeration module can adopt a multi-refrigerant circulation flow path design, so as to facilitate increasing the operation reliability of the liquid cooling unit. In addition, the first liquid cooling device 100 and the second liquid cooling device of the liquid cooling unit can be used as spares for each other. When one of them fails, the other can obtain cold energy through the heat exchanger 300, and temporarily use the other liquid cooling device to cool the centralized important heat-generating equipment, which is beneficial to improving the reliability of the working system including the heat-generating equipment.

[0104] As Figure 1 shown, in the liquid cooling system of some embodiments, the first liquid cooling device 100 includes a first hydraulic module 120. The first hydraulic module 120 includes a first liquid supply flow path 1239 and a first liquid return flow path 1219. The first liquid supply flow path 1239 is connected in series to the first inlet flow path 131, and the first liquid return flow path 1219 is connected in series to the first outlet flow path 132. The first hydraulic module 120 includes a first pump 1227. The first pump 1227 is arranged on the first liquid supply flow path 1239 or the first liquid return flow path 1219 and is configured to drive the first fluid to flow in the first flow path 130; and / or the second liquid cooling device 200 includes a second hydraulic module 220. The second hydraulic module 220 includes a second liquid supply flow path and a second liquid return flow path. The second liquid supply flow path is connected in series to the second inlet flow path 231, and the second liquid return flow path is connected in series to the second outlet flow path 232. The second hydraulic module 220 includes a second pump. The second pump is arranged on the second liquid supply flow path or the second liquid return flow path and is configured to drive the second fluid to flow in the second flow path 230.

[0105] As Figure 1 shown, in the liquid cooling system of some embodiments, the first hydraulic module 120 and the second hydraulic module 220 are the same.

[0106] In the liquid cooling system of some embodiments, the liquid cooling system further includes a control device. The control device is in signal connection with the liquid cooling system operating device and is configured to control the operation of the liquid cooling system operating device.

[0107] The control device can be implemented, for example, as a general-purpose processor, a programmable logic controller (PLC), a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or any suitable combination thereof for performing the functions described in the present disclosure.

[0108] The embodiment of the present application further provides a control method for the liquid cooling system in the foregoing embodiment. The control method includes: when both the first liquid cooling device 100 and the second liquid cooling device 200 are in an operating state, operating the heat exchanger control unit to make the first flow path 130 and the second flow path 230 in a thermally isolated state; when one of the first liquid cooling device 100 and the second liquid cooling device 200 is in an operating state and the other is in a stopped operating state, operating the heat exchanger control unit to make the first flow path 130 and the second flow path 230 in a heat exchange state.

[0109] The control method of the embodiment of the present application has the advantages that the liquid cooling system of the embodiment of the present application has.

[0110] In the control method of some embodiments, the heat exchanger 300 includes a first heat exchange flow path, a second heat exchange flow path, a first heat exchanger port and a second heat exchanger port communicating with the first heat exchange flow path, and a third heat exchanger port and a fourth heat exchanger port communicating with the second heat exchange flow path; the heat exchanger control unit includes at least one of a first control valve 411, a second control valve 412, a third control valve 413, and a fourth control valve 414. The first control valve 411 is connected between the first heat exchanger port and the first flow path 130 to control the connection or disconnection between the first heat exchanger port and the first flow path 130. The second control valve 412 is connected between the second heat exchanger port and the first flow path 130 to control the connection or disconnection between the second heat exchanger port and the first flow path 130. The third control valve 413 is connected between the third heat exchanger port and the second flow path 230 to control the connection or disconnection between the third heat exchanger port and the second flow path 230. The fourth control valve 414 is connected between the fourth heat exchanger port and the second flow path 230 to control the connection or disconnection between the fourth heat exchanger port and the second flow path 230.

[0111] The control method includes: operating the heat exchanger control unit to put the first flow path 130 and the second flow path 230 in a thermally isolated state, including closing the first control valve 411, the second control valve 412, the third control valve 413, and the fourth control valve 414; operating the heat exchanger control unit to put the first flow path 130 and the second flow path 230 in a heat exchange state, including opening the first control valve 411, the second control valve 412, the third control valve 413, and the fourth control valve 414.

[0112] In the control method of some embodiments, the first liquid cooling device 100 includes at least one first refrigeration module 110, the first refrigeration module 110 includes at least one first refrigerant circulation flow path 111, and the first refrigerant circulation flow path 111 is configured to cool the first fluid; the second liquid cooling device 200 includes at least one second refrigeration module 210, the second refrigeration module 210 includes at least one second refrigerant circulation flow path, and the second refrigerant circulation flow path is configured to cool the second fluid.

[0113] Wherein, the control method includes: the first liquid cooling device 100 includes more than two first refrigeration modules 110, when the first liquid cooling device 100 is in an operating state, a part of the more than two first refrigeration modules 110 is in an operating state, and the rest is in a standby state; and / or the first refrigeration module 110 includes more than two first refrigerant circulation flow paths 111, when the first liquid cooling device 100 is in an operating state, a part of the more than two first refrigerant circulation flow paths 111 is in an operating state, and the rest is in a standby state; and / or the second liquid cooling device 200 includes more than two second refrigeration modules 210, when the second liquid cooling device 200 is in an operating state, a part of the more than two second refrigeration modules 210 is in an operating state, and the rest is in a standby state; and / or the second refrigeration module 210 includes more than two second refrigerant circulation flow paths, when the second liquid cooling device 200 is in an operating state, a part of the more than two second refrigerant circulation flow paths is in an operating state, and the rest is in a standby state.

[0114] In the control method of some embodiments, the first liquid cooling device 100 includes more than two first refrigeration modules 110. When the first liquid cooling device 100 is switched from the stopped state to the operating state, the first refrigeration module 110 with the shorter total operating time among the more than two first refrigeration modules 110 is preferentially put into the operating state; and / or the first refrigeration module 110 includes more than two first refrigerant circulation paths 111. When the first liquid cooling device 100 is switched from the stopped state to the operating state, the first refrigerant circulation path 111 with the shorter total operating time among the more than two first refrigerant circulation paths 111 is preferentially put into the operating state; and / or the second liquid cooling device 200 includes more than two second refrigeration modules 210. When the second liquid cooling device 200 is switched from the stopped state to the operating state, the second refrigeration module 210 with the shorter total operating time among the more than two second refrigeration modules 210 is preferentially put into the operating state; and / or the second refrigeration module 210 includes more than two second refrigerant circulation paths. When the second liquid cooling device 200 is switched from the stopped state to the operating state, the second refrigerant circulation path with the shorter total operating time among the more than two second refrigerant circulation paths is preferentially put into the operating state.

[0115] In the control method of some embodiments, the first liquid cooling device 100 includes more than two first refrigeration modules 110. When the operating time of the first liquid cooling device 100 exceeds the first predetermined time, at least one first refrigeration module 110 in the operating state is switched to the standby state, and at least one first refrigeration module 110 in the standby state is switched to the operating state; and / or the first refrigeration module 110 includes more than two first refrigerant circulation paths 111. When the operating time of the first liquid cooling device 100 exceeds the second predetermined time, at least one first refrigerant circulation path 111 in the operating state is switched to the standby state, and at least one first refrigerant circulation path 111 in the standby state is switched to the operating state; and / or the second liquid cooling device 200 includes more than two second refrigeration modules 210. When the operating time of the second liquid cooling device 200 exceeds the third predetermined time, at least one second refrigeration module 210 in the operating state is switched to the standby state, and at least one second refrigeration module 210 in the standby state is switched to the operating state; and / or the second refrigeration module 210 includes more than two second refrigerant circulation paths. When the operating time of the second liquid cooling device 200 exceeds the fourth predetermined time, at least one second refrigerant circulation path in the operating state is switched to the standby state, and at least one second refrigerant circulation path in the standby state is switched to the operating state.

[0116] Among them, the first to fourth predetermined times can be partially the same, can be all the same, or can be all different.

[0117] The following combines Figures 1 to 4 to further illustrate the liquid cooling system and the control method of the liquid cooling system of the embodiments of the present application.

[0118] The liquid cooling system has two liquid cooling devices, namely the first liquid cooling device 100 (hereinafter also referred to as System A) and the second liquid cooling device 200 (hereinafter also referred to as System B).

[0119] The first fluid of System A is water, which is led to the tube sheet in the large-scale centralized heating equipment through the pipe network 140 for cooling the heating equipment. This System A includes four first refrigeration modules 110 and one first hydraulic module 120. Each of the first refrigeration modules 110 includes two first refrigerant circulation flow paths 111. The two first refrigerant circulation flow paths 111 of the first refrigeration module 110 are backed up to each other. Usually, only one first refrigerant circulation flow path 111 is opened, and the four first refrigeration modules 110 are backed up to each other. Usually, only three first refrigeration modules 110 are opened.

[0120] The second fluid of System B is water, which is led to the indoor unit used to cool the indoor space corresponding to the large-scale equipment environment, so as to cool the indoor space; this System A includes one second refrigeration module 210 and one second hydraulic module 220. The second refrigeration module 210 includes two second refrigerant circulation flow paths, and the two second refrigerant circulation flow paths are backed up to each other. Usually, only one second refrigerant circulation flow path is opened.

[0121] There is a heat exchanger 300 between the first flow path 130 of System A and the second flow path 230 of System B. The heat exchanger 300 is, for example, a plate heat exchanger. The heat exchanger control unit includes a first control valve 411, a second control valve 412, a third control valve 413, and a fourth control valve 414. The first control valve 411, the second control valve 412, the third control valve 413, and the fourth control valve 414 are all butterfly valves, which are usually in the closed state. When System B cannot operate, the butterfly valves connected to the respective ports of the plate heat exchanger are opened. At this time, both the first flow path 130 and the second flow path 230 communicate with the heat exchanger 300, and System A can lead to the indoor unit in the indoor space where the large-scale equipment is located. Similarly, when System A cannot operate, System B can also be used to cool the large-scale centralized heating equipment.

[0122] The four first refrigeration modules 110 in System A are exactly the same, and the internal structures of Modules Two, Three, and Four are no longer shown; the structural configurations of the second refrigeration module 210 and the second hydraulic module 220 of System B are respectively similar to those of the first refrigeration module 110 and the first hydraulic module 210 of System A. Therefore, only in Figure 2 and Figure 3Examples of the first refrigeration module 110 and the first hydraulic module 210 are respectively shown. For the composition and principle of the second refrigeration module 210 and the second hydraulic module 220, reference can be respectively made to the drawings and related descriptions of the first refrigeration module 110 and the first hydraulic module 210. Only the examples of the first refrigeration module 110 and the first hydraulic module 210 will be described below, and the second refrigeration module 210 and the second hydraulic module 220 will not be described repeatedly.

[0123] As Figure 2 shown, the first refrigeration module 110 includes two parallel first refrigerant circulation flow paths 111.

[0124] The first refrigerant circulation flow path 111 mainly includes devices such as a refrigeration compressor 11101, a condenser 11102, a condenser fan 11107, a shell-and-tube evaporator 11104, and a surface cooler 11106. The first refrigerant circulation flow path 111 also includes a gas-liquid separator 11105, a condenser temperature sensor 11108, a low-pressure switch 11109, a high-pressure switch 11110, an exhaust temperature sensor 11111, etc.

[0125] The first refrigeration module 110 also includes a balance butterfly valve 112, a switch two-way valve 113, a switch two-way valve 114, a maintenance butterfly valve 115, an automatic exhaust valve 116, a drain ball valve 117, and a drain ball valve 118 to achieve the related functions shown in the first refrigeration module 110.

[0126] The first hydraulic module 120 mainly includes a first pump 1227, a filter 1229, sensors, valves, etc.

[0127] As Figure 3 shown in the exemplary first hydraulic module 120, the first hydraulic module 120 includes a first liquid delivery flow path 1239 and a first liquid return flow path 1219. On the first liquid delivery flow path 1239, a butterfly valve 1221, a water pressure gauge 1222, a water pressure sensor 1223, a water pressure sensor 1224, a check valve 1225, a butterfly valve 1226, a first pump 1227, a butterfly valve 1228, a filter 1229, a water pressure sensor 1230, a water pressure gauge 1231, a water pressure sensor 1232, a temperature sensor 1233, a temperature sensor 1234, a thermometer 1235, and a control valve 1236 are sequentially arranged. On the first liquid return flow path 1219, a manual exhaust valve 1201, an automatic exhaust valve 1202, an automatic exhaust valve 1203, a butterfly valve 1204, a fine filter 1205, a butterfly valve 1206, a temperature sensor 1207, a thermometer 1208, a temperature sensor 1209, a water pressure sensor 1210, and a water pressure sensor 1211 are sequentially arranged.

[0128] When System A is in operation, the first fluid, which serves as the secondary refrigerant, exchanges heat and cools down in the first refrigeration module 110. The first pump 1227 in the hydraulic module controls the flow rate of the first fluid, and sends the stable low-temperature first fluid through the first flow path 130 and the pipe network 140 to the tube sheet in the large-scale centralized heating equipment to cool down the heating equipment.

[0129] As Figure 4 shown, System A has four first refrigeration modules 110 and one first hydraulic module 120. The four first refrigeration modules 110 can operate in a mode of three in use and one in standby. That is, when System A starts up and runs, only three first refrigeration modules 110 operate. One first refrigeration module 110 does not operate. When one of the three operating first refrigeration modules 110 fails, the remaining one first refrigeration module 110 is started. To ensure the rationality of the operation of the four first refrigeration modules 110, every time System A starts up, the three first refrigeration modules 110 with shorter running time are preferentially started. When System A does not shut down all the time, one first refrigeration module 110 can be forced to rotate after running for three months (the running time can be set by the user). There are two first refrigerant circulation paths 111 in the first refrigeration module 110. Usually, only one first refrigerant circulation path 111 is opened. When the heat dissipation of the centralized heating equipment is large, it is judged whether the temperature of the first fluid provided by the temperature sensor at the outlet of the first hydraulic module 120 is too high. If it is too high, both first refrigerant circulation paths 111 can be fully opened.

[0130] The second fluid of System B, which serves as the secondary refrigerant, is sent to the indoor unit used to cool down the environment of large equipment. This System B includes a second liquid cooling device 210 and a second hydraulic module 220. The structures of the second liquid cooling device 210 and the second hydraulic module 220 are respectively the same as those of the first liquid cooling device 110 and the first hydraulic module 120 of System A. The second liquid cooling device 210 includes two second refrigerant circulation paths. Usually, only one second refrigerant circulation path is opened. When one second refrigerant circulation path fails, the other second refrigerant circulation path is opened. When System B starts up, the second refrigerant circulation path with shorter running time is preferentially opened. When System B does not shut down all the time, the second refrigerant circulation path is forced to rotate after running for three months (the running time can be set by the user).

[0131] There is a plate heat exchanger between the first flow path 130 of system A and the second flow path 230 of system B. Butterfly valves (corresponding to the first to fourth control valves 411 to 414) are provided at each heat exchanger port of the heat exchanger. Each butterfly valve is normally in a closed state. When system B cannot operate, the butterfly valves connected to the plate heat exchanger are opened. At this time, the first flow path 130 and the second flow path 230 are respectively communicated with the plate heat exchanger, and the first fluid in the first flow path 130 and the second fluid in the second flow path 230 can perform heat exchange, and the cold energy of system A can also be transferred to the indoor unit in the large equipment without affecting the cooling of the space of the large equipment. Similarly, when system A cannot operate, system B can also cool the large centralized heating equipment through the plate heat exchanger.

[0132] Those skilled in the art can understand that in the above method of the specific embodiment, the writing order of each step does not mean a strict execution order and does not constitute any limitation on the implementation process. The specific execution order of each step should be determined by its function and possible internal logic.

[0133] The descriptions of the above embodiments tend to emphasize the differences between the embodiments. Their similarities or similarities can be referred to each other. For the sake of brevity, they will not be repeated herein.

[0134] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and not to limit them; although the present application has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that it is still possible to modify the specific implementation manners of the present application or perform equivalent replacements for some technical features, and they should all be covered within the scope of the technical solutions claimed in the present application.

Claims

1. A liquid cooling system, characterized in that, Comprising: A first liquid cooling device (100), comprising a first refrigeration module (110) and a first flow path (130), the first refrigeration module (110) being configured to cool a first fluid within the first flow path (130), the first flow path (130) comprising a first inlet flow path (131) for delivering the first fluid to the first refrigeration module (110) and a first outlet flow path (132) for outputting the first fluid from the first refrigeration module (110), the first fluid being configured to cool a heat generating device; A second liquid cooling device (200), comprising a second refrigeration module (210) and a second flow path (230), the second refrigeration module (210) being configured to cool a second fluid within the second flow path (230), the second flow path (230) comprising a second inlet flow path (231) for delivering the second fluid to the second refrigeration module (210) and a second outlet flow path (232) for outputting the second fluid from the second refrigeration module (210), the second fluid being configured to cool an indoor space; A heat exchanger (300), connected between the first flow path (130) and the second flow path (230); And A liquid cooling system control device, comprising a heat exchanger control unit configured to operably connect or disconnect the heat exchanger (300) from the first flow path (130) and / or operably connect or disconnect the heat exchanger (300) from the second flow path (230), such that the first flow path (130) and the second flow path (230) have a heat exchange state and a thermal isolation state. In the heat exchange state, the first flow path (130) and the second flow path (230) are connected to the heat exchanger (300) so that the first fluid and the second fluid exchange heat within the heat exchanger (300). In the isolation state, at least one of the first flow path (130) and the second flow path (230) is disconnected from the heat exchanger (300) so that the first fluid and the second fluid are thermally isolated.

2. The liquid cooling system according to claim 1, wherein The heat exchanger (300) is connected between the first inlet flow path (131) and the second outlet flow path (232).

3. The liquid cooling system according to claim 1, wherein The second liquid cooling device (200) is configured to cool the indoor space where the heat generating device is located.

4. The liquid cooling system according to claim 1, wherein The heat exchanger (300) comprises a first heat exchange flow path, a second heat exchange flow path, a first heat exchanger port and a second heat exchanger port communicating with the first heat exchange flow path, and a third heat exchanger port and a fourth heat exchanger port communicating with the second heat exchange flow path; The heat exchanger control unit includes at least one of a first control valve (411), a second control valve (412), a third control valve (413), and a fourth control valve (414). The first control valve (411) is connected between the first heat exchanger port and the first flow path (130) to control the connection or disconnection between the first heat exchanger port and the first flow path (130). The second control valve (412) is connected between the second heat exchanger port and the first flow path (130) to control the connection or disconnection between the second heat exchanger port and the first flow path (130). The third control valve (413) is connected between the third heat exchanger port and the second flow path (230) to control the connection or disconnection between the third heat exchanger port and the second flow path (230). The fourth control valve (414) is connected between the fourth heat exchanger port and the second flow path (230) to control the connection or disconnection between the fourth heat exchanger port and the second flow path (230).

5. The liquid cooling system according to claim 1, wherein, The first liquid cooling device (100) includes at least one first refrigeration module (110). The first refrigeration module (110) includes at least one first refrigerant circulation flow path (111), and the first refrigerant circulation flow path (111) is configured to cool the first fluid; The second liquid cooling device (200) includes at least one second refrigeration module (210). The second refrigeration module (210) includes at least one second refrigerant circulation flow path, and the second refrigerant circulation flow path is configured to cool the second fluid.

6. The liquid cooling system according to claim 5, wherein, At least one of the first refrigeration modules (110) is the same as at least one of the second refrigeration modules (210); and / or At least one of the first refrigerant circulation flow paths (111) is the same as at least one of the second refrigerant circulation flow paths.

7. The liquid cooling system according to claim 5, wherein, The first liquid cooling device (100) includes more than two of the first refrigeration modules (110), and the more than two first refrigeration modules (110) are connected in parallel; and / or The first refrigeration module (110) includes more than two of the first refrigerant circulation flow paths (111), and the more than two first refrigerant circulation flow paths (111) are connected in parallel; and / or The second liquid cooling device (200) includes more than two of the second refrigeration modules (210), and the more than two second refrigeration modules (210) are connected in parallel; and / or The second refrigeration module (210) includes more than two of the second refrigerant circulation flow paths, and the more than two second refrigerant circulation flow paths are connected in parallel.

8. The liquid cooling system according to claim 5, wherein, The first liquid cooling device (100) includes more than two of the first refrigeration modules (110), and at least two of the first refrigeration modules (110) are the same; and / or The first cooling module (110) includes more than two of the first refrigerant circulation flow paths (111), and at least two of the first refrigerant circulation flow paths (111) are the same; and / or The second liquid cooling device (200) includes more than two of the second cooling modules (210), and at least two of the second cooling modules (210) are the same; and / or The second cooling module (210) includes more than two of the second refrigerant circulation flow paths, and at least two of the second refrigerant circulation flow paths are the same.

9. The liquid cooling system according to claim 5, wherein The first liquid cooling device (100) includes more than two of the first cooling modules (110), the first flow path (130) includes a first conveying portion and more than two first heat exchange portions corresponding to the more than two first cooling modules (110), the first heat exchange portions are configured to perform heat exchange with the corresponding first cooling modules (110) to cool the first fluid, the liquid cooling system control device includes a first cooling module control unit, the first cooling module control unit is disposed between each of the heat exchange portions and the conveying portion, and is configured to control the connection or disconnection between the first heat exchange portions and the first conveying portion; and / or The second liquid cooling device (200) includes more than two of the second cooling modules (210), the second flow path (230) includes a second conveying portion and more than two second heat exchange portions corresponding to the more than two second cooling modules (210), the second heat exchange portions are configured to perform heat exchange with the corresponding second cooling modules (210) to cool the second fluid, the liquid cooling system control device includes a second cooling module control unit, the second cooling module control unit is disposed between each of the heat exchange portions and the conveying portion, and is configured to control the connection or disconnection between the second heat exchange portions and the second conveying portion.

10. The liquid cooling system according to claim 5, characterized in that, The number of the first cooling modules (110) is greater than the number of the second cooling modules (210).

11. The liquid cooling system according to claim 5, wherein The first liquid cooling device (100) includes four of the first cooling modules (110); The first cooling module (110) includes two of the first refrigerant circulation flow paths (111); The second liquid cooling device (200) includes one of the second cooling modules (210); The second cooling module (210) includes two of the second refrigerant circulation flow paths.

12. The liquid cooling system according to claim 1, wherein The first liquid cooling device (100) includes a first hydraulic module (120). The first hydraulic module (120) includes a first liquid supply flow path (1239) and a first liquid return flow path (1219). The first liquid supply flow path (1239) is connected in series to the first inlet flow path (131), and the first liquid return flow path (1219) is connected in series to the first outlet flow path (132). The first hydraulic module (120) includes a first pump (1227). The first pump (1227) is disposed on the first liquid supply flow path (1239) or the first liquid return flow path (1219) and is configured to drive the first fluid to flow within the first flow path (130); and / or The second liquid cooling device (200) includes a second hydraulic module (220). The second hydraulic module (220) includes a second liquid supply flow path and a second liquid return flow path. The second liquid supply flow path is connected in series to the second inlet flow path (231), and the second liquid return flow path is connected in series to the second outlet flow path (232). The second hydraulic module (220) includes a second pump. The second pump is disposed on the second liquid supply flow path or the second liquid return flow path and is configured to drive the second fluid to flow within the second flow path (230).

13. The liquid cooling system according to claim 12, wherein The first hydraulic module (120) and the second hydraulic module (220) are the same.

14. The liquid cooling system according to any one of claims 1 to 13, characterized in that, It further includes a control device. The control device is in signal connection with the liquid cooling system operating device and is configured to control the operation of the liquid cooling system operating device.

15. A control method for the liquid cooling system according to any one of claims 1 to 14, characterized in that, Comprising: When both the first liquid cooling device (100) and the second liquid cooling device (200) are in an operating state, operate the heat exchanger control unit to bring the first flow path (130) and the second flow path (230) into the thermal isolation state; When one of the first liquid cooling device (100) and the second liquid cooling device (200) is in an operating state and the other is in a stopped operating state, operate the heat exchanger control unit to bring the first flow path (130) and the second flow path (230) into the heat exchange state.

16. The control method according to claim 15, wherein The heat exchanger (300) includes a first heat exchange flow path, a second heat exchange flow path, a first heat exchanger port and a second heat exchanger port communicating with the first heat exchange flow path, and a third heat exchanger port and a fourth heat exchanger port communicating with the second heat exchange flow path; The heat exchanger control unit includes at least one of a first control valve (411), a second control valve (412), a third control valve (413), and a fourth control valve (414). The first control valve (411) is connected between the first heat exchanger port and the first flow path (130) to control the connection or disconnection between the first heat exchanger port and the first flow path (130). The second control valve (412) is connected between the second heat exchanger port and the first flow path (130) to control the connection or disconnection between the second heat exchanger port and the first flow path (130). The third control valve (413) is connected between the third heat exchanger port and the second flow path (230) to control the connection or disconnection between the third heat exchanger port and the second flow path (230). The fourth control valve (414) is connected between the fourth heat exchanger port and the second flow path (230) to control the connection or disconnection between the fourth heat exchanger port and the second flow path (230); The control method includes: Operating the heat exchanger control unit to place the first flow path (130) and the second flow path (230) in the thermal isolation state includes closing the first control valve (411), the second control valve (412), the third control valve (413), and the fourth control valve (414); Operating the heat exchanger control unit to place the first flow path (130) and the second flow path (230) in the heat exchange state includes opening the first control valve (411), the second control valve (412), the third control valve (413), and the fourth control valve (414).

17. The control method according to claim 15, wherein The first liquid cooling device (100) includes at least one first refrigeration module (110). The first refrigeration module (110) includes at least one first refrigerant circulation flow path (111), and the first refrigerant circulation flow path (111) is configured to cool the first fluid; The second liquid cooling device (200) includes at least one second refrigeration module (210). The second refrigeration module (210) includes at least one second refrigerant circulation flow path, and the second refrigerant circulation flow path is configured to cool the second fluid; Wherein, the control method includes: The first liquid cooling device (100) includes more than two of the first refrigeration modules (110). When the first liquid cooling device (100) is in an operating state, a part of the more than two first refrigeration modules (110) is in an operating state, and the rest are in a standby state; and / or The first refrigeration module (110) includes more than two of the first refrigerant circulation flow paths (111). When the first liquid cooling device (100) is in an operating state, a part of the more than two first refrigerant circulation flow paths (111) is in an operating state, and the rest are in a standby state; and / or The second liquid cooling device (200) includes more than two of the second refrigeration modules (210). When the second liquid cooling device (200) is in an operating state, a part of the more than two second refrigeration modules (210) is in an operating state, and the rest are in a standby state; and / or The second refrigeration module (210) includes more than two of the second refrigerant circulation flow paths. When the second liquid cooling device (200) is in an operating state, a part of the more than two second refrigerant circulation flow paths is in an operating state, and the rest are in a standby state.

18. The control method according to claim 17, wherein The first liquid cooling device (100) includes more than two of the first refrigeration modules (110). When the first liquid cooling device (100) is switched from a stopped operating state to an operating state, the first refrigeration module (110) with the shorter total operating time among the more than two first refrigeration modules (110) is preferentially in an operating state; and / or The first refrigeration module (110) includes more than two of the first refrigerant circulation flow paths (111). When the first liquid cooling device (100) is switched from a stopped operating state to an operating state, the first refrigerant circulation flow path (111) with the shorter total operating time among the more than two first refrigerant circulation flow paths (111) is preferentially in an operating state; and / or The second liquid cooling device (200) includes more than two of the second refrigeration modules (210). When the second liquid cooling device (200) is switched from a stopped operating state to an operating state, the second refrigeration module (210) with the shorter total operating time among the more than two second refrigeration modules (210) is preferentially in an operating state; and / or The second refrigeration module (210) includes more than two of the second refrigerant circulation flow paths. When the second liquid cooling device (200) is switched from a stopped operating state to an operating state, the second refrigerant circulation flow path with the shorter total operating time among the more than two second refrigerant circulation flow paths is preferentially in an operating state.

19. The control method according to claim 16, wherein The first liquid cooling device (100) includes more than two of the first refrigeration modules (110). When the operating time of the first liquid cooling device (100) exceeds a first predetermined time, at least one of the first refrigeration modules (110) in an operating state is switched to a standby state, and at least one of the first refrigeration modules (110) in a standby state is switched to an operating state; and / or The first refrigeration module (110) includes more than two first refrigerant circulation flow paths (111). When the operating time of the first liquid cooling device (100) exceeds a second predetermined time, at least one of the first refrigerant circulation flow paths (111) in an operating state is switched to a standby state, and at least one of the first refrigerant circulation flow paths (111) in a standby state is switched to an operating state; and / or The second liquid cooling device (200) includes more than two of the second refrigeration modules (210). When the operating duration of the second liquid cooling device (200) exceeds a third predetermined duration, at least one of the second refrigeration modules (210) in the operating state is switched to the standby state, and at least one of the second refrigeration modules (210) in the standby state is switched to the operating state; and / or The second refrigeration module (210) includes more than two second refrigerant circulation flow paths. When the operating duration of the second liquid cooling device (200) exceeds a fourth predetermined duration, at least one of the second refrigerant circulation flow paths in the operating state is switched to the standby state, and at least one of the second refrigerant circulation flow paths in the standby state is switched to the operating state.

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