CN116940087A

CN116940087A - Liquid cooling system and control method of liquid cooling system

Info

Publication number: CN116940087A
Application number: CN202311087919.4A
Authority: CN
Inventors: 曹吉; 王严杰; 孙宝茹; 黄志聪; 龙志健
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2023-08-28
Filing date: 2023-08-28
Publication date: 2023-10-24

Abstract

The application provides a liquid cooling system and a control method of the liquid cooling system. The liquid cooling system includes: the first liquid cooling device comprises a first refrigeration module and a first flow path, wherein the first refrigeration module is configured to cool first fluid in the first flow path, and the first fluid is configured to cool the heating equipment; a second liquid cooling device including a second refrigeration module and a second flow path, the second refrigeration module configured to cool a second fluid within the second flow path, the second fluid configured to cool the indoor space; a heat exchanger connected between the first flow path and the second flow path; and a liquid cooling system operating device including a heat exchanger control section configured to operatively connect or disconnect the heat exchanger with the first flow path and/or to operatively connect or disconnect the heat exchanger with the second flow path so that the first flow path and the second flow path have a heat exchange state and a heat isolation state.

Description

Liquid cooling system and control method of liquid cooling system

Technical Field

The present application relates to a liquid cooling system and a control method of the liquid cooling system.

Background

The widespread problem of thermal failure of heat-generating devices, such as electrical devices, directly affects the efficiency of the heat-generating device itself and the performance of the safety service to society. Particularly, some large-scale centralized heating equipment needs to be operated without stopping the machine all the year round, and the reliability of the operation of the heating equipment is particularly important.

In the related art, a liquid cooling unit is generally adopted for cooling aiming at large-scale centralized heating equipment. The liquid cooling unit has complex structure, various internal components of the liquid cooling unit and easy failure of devices. In order to ensure the heat dissipation of the concentrated heating equipment, a plurality of modules are arranged in the liquid cooling unit, and all the modules are not completely started during operation, so that one module can be used for coping with faults. When the liquid cooling unit in the related art fails and can not be started, the unit can only be powered off for maintenance. However, the heating equipment cannot stop running, and is always heating, and the heating equipment is easy to damage due to high temperature.

The above statements are merely to provide background information related to the present disclosure and may not necessarily constitute prior art.

Disclosure of Invention

The application aims to provide a liquid cooling system and a control method of the liquid cooling system, which are beneficial to reducing the possibility of damage of heating equipment due to high temperature.

A first aspect of the present application provides a liquid cooling system comprising:

a first liquid cooling apparatus comprising a first refrigeration module configured to cool a first fluid within the first flow path, the first flow path comprising 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 configured to cool a heat generating device;

A second liquid cooling device including a second refrigeration module configured to cool a second fluid within the second flow path, the second flow path including 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 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 operating device comprising a heat exchanger control configured to operatively communicate or disconnect the heat exchanger from the first flow path and/or to operatively communicate or disconnect the heat exchanger from the second flow path such that the first flow path and the second flow path have a heat exchange state in which the first flow path and the second flow path communicate with the heat exchanger to thermally exchange the first fluid with the second fluid within the heat exchanger and a thermally isolated state in which at least one of the first flow path and the second flow path is disconnected from the heat exchanger to thermally isolate the first fluid from the second fluid.

In some embodiments, the heat exchanger is connected between the first inlet flow path and the second outlet flow path.

In some embodiments, the second liquid cooling device is configured to cool an indoor space in which the heat generating apparatus is located.

In the liquid cooling system of some embodiments,

the heat exchanger comprises a first heat exchange flow path, a second heat exchange flow path, a first heat exchanger port and a second heat exchanger port which are communicated with the first heat exchange flow path, and a third heat exchanger port and a fourth heat exchanger port which are communicated with the second heat exchange flow path;

the heat exchanger control part comprises at least one of a first control valve, a second control valve, a third control valve and a fourth control valve, wherein the first control valve is connected between the first heat exchanger port and the first flow path to control the first heat exchanger port to be communicated with or disconnected from the first flow path, the second control valve is connected between the second heat exchanger port and the first flow path to control the second heat exchanger port to be communicated with or disconnected from the first flow path, the third control valve is connected between the third heat exchanger port and the second flow path to control the third heat exchanger port to be communicated with or disconnected from the second flow path, and the fourth control valve is connected between the fourth heat exchanger port and the second flow path to control the fourth heat exchanger port to be communicated with or disconnected from the second flow path.

In the liquid cooling system of some embodiments,

the first liquid cooling device comprises at least one first refrigeration module comprising at least one first refrigerant circulation flow path configured to cool the first fluid;

the second liquid cooling device includes at least one second refrigeration module including at least one second refrigerant circulation flow path configured to cool the second fluid.

In the liquid cooling system of some embodiments,

at least one of the first refrigeration modules is identical to at least one of the second refrigeration modules; and/or

At least one of the first refrigerant circulation flow paths is identical to at least one of the second refrigerant circulation flow paths.

In the liquid cooling system of some embodiments,

the first liquid cooling device comprises more than two first refrigerating modules which are connected in parallel; and/or

The first refrigeration module comprises more than two first refrigerant circulation flow paths which are connected in parallel; and/or

The second liquid cooling device comprises more than two second refrigerating modules which are connected in parallel; and/or

The second refrigeration module comprises more than two second refrigerant circulation flow paths, and the more than two second refrigerant circulation flow paths are connected in parallel.

In the liquid cooling system of some embodiments,

the first liquid cooling device comprises more than two first refrigeration modules, and at least two first refrigeration modules are identical; and/or

The first refrigeration module comprises more than two first refrigerant circulation flow paths, and at least two first refrigerant circulation flow paths are identical; and/or

The second liquid cooling device comprises more than two second refrigerating modules, and at least two second refrigerating modules are identical; and/or

The second refrigeration module comprises more than two second refrigerant circulation flow paths, and at least two second refrigerant circulation flow paths are identical.

In the liquid cooling system of some embodiments,

the first liquid cooling device comprises more than two first refrigerating modules, the first flow path comprises a first conveying part and more than two first heat exchange parts corresponding to the more than two first refrigerating modules, the first heat exchange parts are configured to exchange heat with the corresponding first refrigerating modules to cool the first fluid, the liquid cooling system operating device comprises a first refrigerating module control part, the first refrigerating module control part is arranged between each heat exchange part and the conveying part and is configured to control the first heat exchange parts to be communicated with or disconnected from the first conveying part; and/or

The second liquid cooling device comprises more than two second refrigerating modules, the second flow path comprises a second conveying part and more than two second heat exchange parts corresponding to the more than two second refrigerating modules, the second heat exchange parts are configured to exchange heat with the corresponding second refrigerating modules to cool the second fluid, the liquid cooling system operating device comprises a second refrigerating module control part, the second refrigerating module control part is arranged between each heat exchange part and the conveying part and is configured to control the second heat exchange parts to be communicated with or disconnected from the second conveying part.

In some embodiments, the number of first refrigeration modules is greater than the number of second refrigeration modules.

In the liquid cooling system of some embodiments,

the first liquid cooling device comprises four first refrigeration modules;

the first refrigeration module comprises two first refrigerant circulation flow paths;

the second liquid cooling device comprises a second refrigerating module;

the second refrigeration module comprises two second refrigerant circulation flow paths.

In the liquid cooling system of some embodiments,

the first liquid cooling device comprises a first hydraulic module, the first hydraulic module comprises a first liquid feeding flow path and a first return flow path, the first liquid feeding flow path is connected in series with the first inflow flow path, the first return flow path is connected in series with the first outflow flow path, the first hydraulic module comprises a first pump, and the first pump is arranged on the first liquid feeding flow path or the first return flow path and is configured to drive the first fluid to flow in the first flow path; and/or

The second liquid cooling device comprises a second hydraulic module, the second hydraulic module comprises a second liquid feeding flow path and a second return flow path, the second liquid feeding flow path is connected in series with the second inflow flow path, the second return flow path is connected in series with the second outflow flow path, the second hydraulic module comprises a second pump, the second pump is arranged on the second liquid feeding flow path or the second return flow path and is configured to drive the second fluid to flow in the second flow path.

In some embodiments, the first hydraulic module and the second hydraulic module are the same.

In some embodiments, the liquid cooling system further comprises a control device, wherein the control device is in signal connection with the liquid cooling system operating device and is configured to control the liquid cooling system operating device to act.

A second aspect of the present application provides a method for controlling a liquid cooling system according to the first aspect of the present application, including:

operating the heat exchanger control to place the first and second flow paths in the thermally isolated state when both the first and second liquid cooling devices are in an operational state;

When one of the first liquid cooling device and the second liquid cooling device is in an operation state and the other is in a stop operation state, the heat exchanger control portion is operated so that the first flow path and the second flow path are in the heat exchange state.

In the control method of some embodiments of the present invention,

the heat exchanger control part 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 first heat exchanger port to be communicated with or disconnected from 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 second heat exchanger port to be communicated with or disconnected from 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 third heat exchanger port to be communicated with or disconnected from the second flow path, and the fourth control valve 414 is connected between the fourth heat exchanger port and the second flow path to control the fourth heat exchanger port to be communicated with or disconnected from the second flow path;

The control method comprises the following steps:

operating the heat exchanger control to place the first and second flow paths in the thermally isolated state includes closing the first, second, third, and fourth control valves 411, 412, 413, 414;

manipulating the heat exchanger control to place the first and second flow paths in the heat exchange state includes opening the first, second, third, and fourth control valves 411, 412, 413, and 414.

In the control method of some embodiments of the present invention,

the second liquid cooling device includes at least one second refrigeration module including at least one second refrigerant circulation flow path configured to cool the second fluid;

the control method comprises the following steps:

the first liquid cooling device comprises more than two first refrigerating modules, when the first liquid cooling device is in an operating state, one part of the more than two first refrigerating modules is in an operating state, and the rest part of the more than two first refrigerating modules is in a standby state; and/or

The first refrigeration module comprises more than two first refrigerant circulation flow paths, when the first liquid cooling device is in an operation state, one part of the more than two first refrigerant circulation flow paths is in an operation state, and the other part of the more than two first refrigerant circulation flow paths are in a standby state; and/or

The second liquid cooling device comprises more than two second refrigerating modules, when the second liquid cooling device is in an operating state, one part of the more than two second refrigerating modules is in an operating state, and the rest part of the more than two second refrigerating modules is in a standby state; and/or

The second refrigeration module comprises more than two second refrigerant circulation flow paths, and when the second liquid cooling device is in an operation state, one part of the more than two second refrigerant circulation flow paths is in an operation state, and the other part of the more than two second refrigerant circulation flow paths are in a standby state.

In the control method of some embodiments of the present invention,

the first liquid cooling device comprises more than two first refrigerating modules, and when the first liquid cooling device is switched from a stop operation state to an operation state, the first refrigerating modules with the total operation time length in the more than two first refrigerating modules are preferentially in the operation state; and/or

The first refrigeration module comprises more than two first refrigerant circulation flow paths, and when the first liquid cooling device is switched from a stop operation state to an operation state, the first refrigerant circulation flow paths with the total operation time length in the more than two first refrigerant circulation flow paths are preferentially in the operation state; and/or

The second liquid cooling device comprises more than two second refrigerating modules, and when the second liquid cooling device is switched from a stop operation state to an operation state, the second refrigerating modules with the total operation time length in the more than two second refrigerating modules are preferentially in the operation state; and/or

The second refrigeration module comprises more than two second refrigerant circulation flow paths, and when the second liquid cooling device is switched from a stop operation state to an operation state, the second refrigerant circulation flow paths with the length shorter than that of the total operation in the more than two second refrigerant circulation flow paths are preferentially in the operation state.

In the control method of some embodiments of the present invention,

the first liquid cooling device comprises more than two first refrigerating modules, when the operation time of the first liquid cooling device exceeds a first preset time, at least one first refrigerating module in an operation state is switched to a standby state, and at least one first refrigerating module in the standby state is switched to the operation state; and/or

The first refrigeration module comprises more than two first refrigerant circulation flow paths, when the operation time of the first liquid cooling device exceeds a second preset time, at least one first refrigerant circulation flow path in an operation state is switched to a standby state, and at least one first refrigerant circulation flow path in the standby state is switched to the operation state; and/or

The second liquid cooling device comprises more than two second refrigerating modules, when the operation time of the second liquid cooling device exceeds a third preset time, at least one second refrigerating module in an operation state is switched to a standby state, and at least one second refrigerating module in the standby state is switched to the operation state; and/or

The second refrigeration module comprises more than two second refrigerant circulation flow paths, when the operation time of the second liquid cooling device exceeds a fourth preset time, at least one second refrigerant circulation flow path in an operation state is switched to a standby state, and at least one second refrigerant circulation flow path in the standby state is switched to the operation state.

Based on the liquid cooling system and the control method of the liquid cooling system, when the first liquid cooling device and the second liquid cooling device are in an operation state, the heat exchanger control part is controlled so that the first flow path and the second flow path are in a heat isolation state; when one of the first liquid cooling device and the second liquid cooling device is in an operation state and the other is in a stop operation state, the heat exchanger control part is operated to enable the first flow path and the second flow path to be in a heat exchange state, so that the first liquid cooling device and the second liquid cooling device can be mutually standby, the second liquid cooling device is beneficial to providing a refrigerating function when the first liquid cooling device is in the stop operation state, and therefore cooling of heating equipment is beneficial to guaranteeing and equipment paralysis is avoided.

Other features of the present application and its advantages will become apparent from the following detailed description of exemplary embodiments of the application, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:

fig. 1 is a schematic diagram of a liquid cooling system according to an embodiment of the present application.

Fig. 2 is a schematic diagram of a first cooling module of the first liquid cooling apparatus according to the embodiment shown in fig. 1.

Fig. 3 is a schematic diagram of a first hydraulic module of the first liquid cooling apparatus according to the embodiment shown in fig. 1.

Fig. 4 is a schematic diagram illustrating a control principle of a control method of a liquid cooling system according to an embodiment of the application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, 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 figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present application, it should be understood that the terms "first," "second," and the like are used for defining the components, and are merely for convenience in distinguishing the corresponding components, and the terms are not meant to have any special meaning unless otherwise indicated, so that the scope of the present application is not to be construed as being limited.

In the description of the present application, it should be understood that the azimuth or positional relationship indicated by the azimuth word is generally based on the azimuth or positional relationship shown in the drawings, and is merely for convenience of describing the present application and simplifying the description, and the azimuth word does not indicate or imply that the device or element to be referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

In addition, the technical features of the different embodiments of the present application described below may be combined with each other as long as they do not collide with each other.

As shown in fig. 1 to 3, an 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 operating device.

The first liquid cooling apparatus 100 includes a first cooling 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 inflow flow path 131 for delivering the first fluid to the first refrigeration module 110 and a first outflow flow path 132 for outputting the first fluid from the first refrigeration module 110. The first fluid is configured to cool the heat generating device.

The second liquid cooling apparatus 200 includes a second cooling module 210 and a second flow path 230. The second refrigeration module 210 is configured to cool the second fluid within the second flow path 230. The second flow path 230 includes a second inflow flow path 231 for delivering the second fluid to the second refrigeration module 210 and a second outflow flow path 232 for outputting the second fluid from the second refrigeration module 210. The second fluid is configured to cool the indoor space.

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

The liquid cooling system operating device comprises a heat exchanger control part. The heat exchanger control is configured to operatively connect or disconnect the heat exchanger 300 to the first flow path 130 and/or to operatively connect or disconnect the heat exchanger 300 to 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 heat isolation state. In the heat exchange state, the first and second flow paths 130 and 230 communicate with the heat exchanger 300 to heat exchange the first and second fluids within the heat exchanger 300. In the isolated state, at least one of the first and second flow paths 130, 230 is disconnected from the heat exchanger 300 to thermally isolate the first fluid from the second fluid.

Based on the liquid cooling system and the control method of the liquid cooling system provided by the application, when the first liquid cooling device 100 and the second liquid cooling device 200 are in the running state, the heat exchanger control part is operated to enable the first flow path 130 and the second flow path 230 to be in the heat isolation state; and when one of the first liquid cooling device 100 and the second liquid cooling device 200 is in the operation state and the other is in the operation stop state, the heat exchanger control part is operated to enable the first flow path 130 and the second flow path 230 to be in the heat exchange state, so that the first liquid cooling device 100 and the second liquid cooling device 200 can be mutually standby, the refrigeration function is provided by the second liquid cooling device 200 when the first liquid cooling device 100 is in the operation stop state, and the cooling of the heating equipment is guaranteed, and the equipment paralysis is avoided.

The first fluid and the second fluid may be the same or different, e.g., the first fluid and the second fluid may each be water.

As shown in fig. 1, in some embodiments of the liquid cooling system, the heat exchanger 300 is connected between the first inlet flow path 131 and the second outlet flow path 232.

In some embodiments of the liquid cooling system, the second liquid cooling device 200 is configured to cool an indoor space in which the heat generating apparatus is located.

As shown in fig. 1, in the liquid cooling system of some embodiments, the heat exchanger 300 includes a first heat exchange flow path, a second heat exchange flow path, first and second heat exchanger ports in communication with the first heat exchange flow path, and third and fourth heat exchanger ports in communication with the second heat exchange flow path. The heat exchanger control comprises 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 first heat exchanger port to be connected to or disconnected from the first flow path 130. A second control valve 412 is connected between the second heat exchanger port and the first flow path 130 to control the second heat exchanger port to be connected to or disconnected from the first flow path 130. A third control valve 413 is connected between the third heat exchanger port and the second flow path 230 to control the connection or disconnection of the third heat exchanger port to the second flow path 230. A fourth control valve 414 is connected between the fourth heat exchanger port and the second flow path 230 to control the fourth heat exchanger port to be connected to or disconnected from the second flow path 230.

As shown in fig. 1 and 2, in the liquid cooling system of some embodiments, the first liquid cooling device 100 includes at least one first cooling module 110, the first cooling module 110 includes at least one first refrigerant circulation flow path 111, and the first refrigerant circulation flow path 111 is configured to cool a first fluid. The second liquid cooling device 200 includes at least one second refrigeration module 210, the second refrigeration module 210 including at least one second refrigerant circulation flow path configured to cool a second fluid.

As shown in fig. 1 and 2, in the liquid cooling system of some embodiments, at least one first refrigeration module 110 is identical to at least one second refrigeration module 210; and/or the at least one first refrigerant circulation flow path 111 is identical to the at least one second refrigerant circulation flow path.

As shown in fig. 1 and 2, in the liquid cooling system of some embodiments, the first liquid cooling device 100 includes more than two first cooling modules 110, and the more than two first cooling modules 110 are connected in parallel; and/or the first refrigeration module 110 includes more than two first refrigerant circulation channels 111, the more than two first refrigerant circulation channels 111 being connected in parallel; and/or the second liquid cooling device 200 comprises more than two second refrigeration modules 210, and 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 channels, which are connected in parallel.

As shown in fig. 1 and 2, in the liquid cooling system of some embodiments, the first liquid cooling apparatus 100 includes more than two first cooling modules 110, and at least two first cooling modules 110 are the same; and/or the first refrigeration module 110 includes more than two first refrigerant circulation channels 111, at least two first refrigerant circulation channels 111 being identical; and/or the second liquid cooling device 200 comprises more than two second refrigeration modules 210, at least two second refrigeration modules 210 being identical; and/or the second refrigeration module 210 includes more than two second refrigerant circulation channels, at least two of which are identical.

As shown in fig. 1, in the liquid cooling system of some embodiments, the first liquid cooling apparatus 100 includes two or more first cooling modules 110, the first flow path 130 includes a first conveying portion and two or more first heat exchanging portions corresponding to the two or more first cooling modules 110, the first heat exchanging portions are configured to exchange heat with the corresponding first cooling modules 110 to cool a first fluid, the liquid cooling system operating apparatus includes a first cooling module control portion, and the first cooling module control portion is disposed between each heat exchanging portion and the conveying portion and configured to control the first heat exchanging portion to be connected to or disconnected from the first conveying portion; and/or the second liquid cooling apparatus 200 includes two or more second cooling modules 210, the second flow path 230 includes a second conveying portion and two or more second heat exchanging portions corresponding to the two or more second cooling modules 210, the second heat exchanging portions are configured to exchange heat with the corresponding second cooling modules 210 to cool the second fluid, and the liquid cooling system operating apparatus includes a second cooling module control portion disposed between each of the heat exchanging portions and the conveying portion and configured to control the second heat exchanging portions to be connected to or disconnected from the second conveying portion.

As shown in fig. 1, the first refrigeration module control part includes a fifth control valve 421 and a sixth control valve 422, and the second refrigeration module control part includes a seventh control valve 421 and an eighth control valve 422. The fifth to eighth control valves may be set as needed, and may be, for example, stop valves, butterfly valves, ball valves, and the like.

As shown in fig. 1, in the liquid cooling system of some embodiments, the number of first refrigeration modules 110 is greater than the number of second refrigeration modules 210.

As shown in fig. 1, in the liquid cooling system of some embodiments, the first liquid cooling apparatus 100 includes four first cooling modules 110; the first refrigeration module 110 includes two first refrigerant circulation passages 111; the second liquid cooling device 200 includes a second cooling module 210; the second refrigeration module 210 includes two second refrigerant circulation flow paths.

In the embodiment of the application, each liquid cooling device of the liquid cooling unit can adopt a multi-refrigerating module design, and each refrigerating module can adopt a multi-refrigerant circulating flow path design, thereby being beneficial to 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 mutually standby, when one of the first liquid cooling device and the second liquid cooling device fails, the other liquid cooling device can obtain cold energy through the heat exchanger 300, and the other liquid cooling device is temporarily adopted to cool the concentrated important heating equipment, so that the reliability of a working system comprising the heating equipment is improved.

As shown in fig. 1, 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 feeding flow path 1239 and a first liquid return flow path 1219, the first liquid feeding flow path 1239 is connected in series to the first inlet flow path 131, 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, and the first pump 1227 is disposed on the first liquid feeding 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 feed flow path and a second liquid return flow path, the second liquid feed flow path is connected in series with the second inlet flow path 231, the second liquid return flow path is connected in series with the second outlet flow path 232, the second hydraulic module 220 includes a second pump disposed on the second liquid feed flow path or the second liquid return flow path and configured to drive the second fluid to flow in the second flow path 230.

As shown in fig. 1, in some embodiments of the liquid cooling system, the first hydraulic module 120 and the second hydraulic module 220 are identical.

In some embodiments, the liquid cooling system further comprises a control device, the control device is in signal connection with the liquid cooling system operating device and configured to control the liquid cooling system operating device to operate.

The control device may be implemented, for example, as a general purpose processor, a programmable logic controller (Programmable Logic Controller, abbreviated as PLC), a digital signal processor (Digital Signal Processor, abbreviated as DSP), an application specific integrated circuit (Application Specific Integrated Circuit, abbreviated as ASIC), a Field-programmable gate array (Field-Programmable Gate Array, abbreviated as FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or any suitable combination thereof for performing the functions described in the present disclosure.

The embodiment of the application also provides a control method of the liquid cooling system in the previous embodiment. The control method comprises the following steps: when the first liquid cooling device 100 and the second liquid cooling device 200 are both in the operation state, the heat exchanger control part is operated to make the first flow path 130 and the second flow path 230 in the heat isolation state; when one of the first liquid cooling apparatus 100 and the second liquid cooling apparatus 200 is in the operation state and the other is in the stop operation state, the heat exchanger control portion is operated so that the first flow path 130 and the second flow path 230 are in the heat exchange state.

The control method of the embodiment of the application has the advantages of the liquid cooling system of the embodiment of the application.

In the control method of some embodiments, the heat exchanger 300 includes a first heat exchange flow path, a second heat exchange flow path, first and second heat exchanger ports in communication with the first heat exchange flow path, and third and fourth heat exchanger ports in communication with the second heat exchange flow path; the heat exchanger control part 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 being connected between the first heat exchanger port and the first flow path 130 to control the first heat exchanger port to be connected to or disconnected from the first flow path 130, the second control valve 412 being connected between the second heat exchanger port and the first flow path 130 to control the second heat exchanger port to be connected to or disconnected from the first flow path 130, the third control valve 413 being connected between the third heat exchanger port and the second flow path 230 to control the third heat exchanger port to be connected to or disconnected from the second flow path 230, the fourth control valve 414 being connected between the fourth heat exchanger port and the second flow path 230 to control the fourth heat exchanger port to be connected to or disconnected from the second flow path 230.

The control method comprises the following steps: operating the heat exchanger control to place the first and second flow paths 130, 230 in a thermally isolated state includes closing the first, second, third, and fourth control valves 411, 412, 413, 414; operating the heat exchanger control to place the first and second flow paths 130, 230 in a heat exchange state includes opening the first, second, third, and fourth control valves 411, 412, 413, 414.

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

The control method comprises the following steps: the first liquid cooling device 100 includes more than two first cooling modules 110, when the first liquid cooling device 100 is in an operation state, a part of the more than two first cooling modules 110 are in an operation state, and the rest part is in a standby state; and/or the first refrigeration module 110 includes two or more first refrigerant circulation channels 111, and when the first liquid cooling device 100 is in the operation state, a part of the two or more first refrigerant circulation channels 111 is in the operation state, and the rest is in the standby state; and/or the second liquid cooling device 200 includes more than two second cooling modules 210, when the second liquid cooling device 200 is in an operation state, a part of the more than two second cooling modules 210 are in an operation state, and the rest part is in a standby state; and/or the second refrigeration module 210 includes two or more second refrigerant circulation channels, and when the second liquid cooling device 200 is in the operation state, a part of the two or more second refrigerant circulation channels is in the operation state, and the rest is in the standby state.

In the control method of some embodiments, the first liquid cooling device 100 includes more than two first refrigeration modules 110, and when the first liquid cooling device 100 is switched from the inactive state to the active state, the first refrigeration module 110 with the total duration of the more than two first refrigeration modules 110 is preferentially in the active state; and/or the first refrigeration module 110 includes more than two first refrigerant circulation channels 111, and when the first liquid cooling device 100 is switched from the inactive state to the active state, the first refrigerant circulation channels 111 with the total operation time length in the more than two first refrigerant circulation channels 111 are preferably in the active state; and/or the second liquid cooling device 200 comprises more than two second refrigerating modules 210, when the second liquid cooling device 200 is switched from the operation stopping state to the operation state, the second refrigerating modules 210 with the total operation time length in the more than two second refrigerating modules 210 are preferably in the operation state; and/or the second refrigeration module 210 includes more than two second refrigerant circulation channels, and when the second liquid cooling device 200 is switched from the inactive state to the active state, the second refrigerant circulation channels with the total operation time length in the more than two second refrigerant circulation channels are preferably in the active state.

In some embodiments of the control method, the first liquid cooling device 100 includes more than two first cooling modules 110, when the operation duration of the first liquid cooling device 100 exceeds a first predetermined duration, at least one first cooling module 110 in an operation state is switched to a standby state, and at least one first cooling module 110 in the standby state is switched to the operation state; and/or the first refrigeration module 110 includes more than two first refrigerant circulation channels 111, when the operation duration of the first liquid cooling device 100 exceeds the second predetermined duration, at least one first refrigerant circulation channel 111 in the operation state is switched to the standby state, and at least one first refrigerant circulation channel 111 in the standby state is switched to the operation state; and/or the second liquid cooling device 200 includes more than two second cooling modules 210, when the operation duration of the second liquid cooling device 200 exceeds a third predetermined duration, at least one second cooling module 210 in an operation state is switched to a standby state, and at least one second cooling module 210 in the standby state is switched to the operation state; and/or the second refrigeration module 210 includes more than two second refrigerant circulation channels, when the operation duration of the second liquid cooling device 200 exceeds the fourth predetermined duration, at least one second refrigerant circulation channel in the operation state is switched to the standby state, and at least one second refrigerant circulation channel in the standby state is switched to the operation state.

The first to fourth predetermined periods of time may be partially the same, may be all the same, or may be all different.

The liquid cooling system and the control method of the liquid cooling system according to the embodiment of the present application are further described below with reference to fig. 1 to 4.

The liquid cooling system includes two liquid cooling apparatuses, i.e., a first liquid cooling apparatus 100 (hereinafter, also referred to as a system a) and a second liquid cooling apparatus 200 (hereinafter, also referred to as a system B).

The first fluid of system a is water, which is passed through tube sheet 140 to a tube sheet in a large centralized heat generating apparatus for cooling the heat generating apparatus. The system a includes four first refrigeration modules 110 and one first hydraulic module 120. Wherein each first refrigeration module 110 includes two first refrigerant circulation flow paths 111. The two first refrigerant circulation channels 111 of the first refrigeration modules 110 are backed up each other, only one first refrigerant circulation channel 111 is ordinarily opened, the four first refrigeration modules 110 are mutually backed up, and only three first refrigeration modules 110 are ordinarily opened.

The second fluid of the system B is water and is led to an indoor unit for cooling the indoor space corresponding to the large equipment environment, so that the indoor space is cooled; the system a includes a second refrigeration module 210 and a second hydraulic module 220. The second refrigeration module 210 includes two second refrigerant circulation paths, and the two second refrigerant circulation paths are backed up, and only one second refrigerant circulation path is normally opened.

Between the first flow path 130 of the system a and the second flow path 230 of the system B there is a heat exchanger 300, which heat exchanger 300 is for example a plate heat exchanger. The heat exchanger control comprises 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, and are normally in a closed state, when the system B cannot operate, the butterfly valves connected to the ports of the plate heat exchanger are opened, and at this time, the first flow path 130 and the second flow path 230 are both communicated with the heat exchanger 300, and the system a can be led to an indoor unit of an indoor space where a large-scale device is located. Similarly, when the system A cannot operate, the system B can also be used for cooling the large-scale centralized heating equipment.

The four first refrigeration modules 110 in the system A are identical, and the internal structures of the second, third and fourth modules are not reflected any more; the structural configuration of the second refrigeration module 210 and the second hydraulic module 220 of the system B is similar to the first refrigeration module 110 and the first hydraulic module 210 of the system a, respectively, and thus, only examples of the first refrigeration module 110 and the first hydraulic module 210 are shown in fig. 2 and 3, respectively, and the composition and principle of the second refrigeration module 210 and the second hydraulic module 220 may be referred to the drawings and the related description of the first refrigeration module 110 and the first hydraulic module 210, respectively. The following description will be given of only examples of the first cooling module 110 and the first hydraulic module 210, and the second cooling module 210 and the second hydraulic module 220 will not be repeated.

As shown in fig. 2, the first refrigeration module 110 includes two first refrigerant circulation passages 111 connected in parallel.

The first refrigerant circulation path 111 mainly includes a refrigeration compressor 11101, a condenser 11102, a condensing fan 11107, a shell-and-tube evaporator 11104, a surface cooler 11106, and the like. The first refrigerant circulation flow path 111 further includes a vapor-liquid separator 11105, a condenser bulb 11108, a low-pressure switch 11109, a high-pressure switch 11110, an exhaust bulb 11111, and the like.

The first refrigeration module 110 further includes a balance butterfly valve 112, an on-off two-way valve 113, an on-off 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 perform the related functions shown in the first refrigeration module 110.

First hydraulic module 120 primarily includes a first pump 1227, a filter 1229, sensors, valves, and the like.

In the exemplary first hydraulic module 120 shown in fig. 3, the first hydraulic module 120 includes a first feed flow path 1239 and a first return flow path 1219. The first liquid sending passage 1239 is provided with 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 in this order. The first circuit flow path 1219 is provided with a manual air release valve 1201, an automatic air release valve 1202, an automatic air release 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 in this order.

When the system A is in an operation state, the first fluid first refrigeration module 110 serving as the secondary refrigerant exchanges heat and cools, the first pump 1227 in the hydraulic module controls the flow of the first fluid, and the stable low-temperature first fluid is led to a tube plate in the large-scale centralized heating equipment through the first flow path 130 and the tube network 140 to cool the heating equipment.

As shown in fig. 4, the system a has four first refrigeration modules 110 and one first hydraulic module 120, and the four first refrigeration modules 110 can be operated in a three-purpose one-standby mode. I.e., when the system a is powered on, only three first refrigeration modules 110 are operated. One first cooling module 110 is not operated, and when one first cooling module 110 is failed among the three first cooling modules 110 operated, the remaining one first cooling module 110 is turned on. In order to ensure the operation reasonability of the four first refrigeration modules 110, three first refrigeration modules 110 with short operation time are preferentially started each time the system A is started. When system a is not powered down at all times, then three months of operation (the run time user may set) may force a rotation of one first refrigeration module 110. In the first refrigeration module 110, only one first refrigerant circulation flow path 111 is normally opened, and when the heat dissipation capacity of the concentrated heat generating device is large, whether the temperature of the provided first fluid is too high or not is judged by the temperature sensor at the outlet of the first hydraulic module 120, and if the temperature is too high, the two first refrigerant circulation flow paths 111 can be fully opened.

The second fluid of the system B is taken as a secondary refrigerant and is led to an indoor unit for cooling the environment of the large-scale equipment; the system B includes a second liquid cooling device 210 and a second hydraulic module 220. The second liquid cooling device 210 and one second hydraulic module 220 are configured in accordance with the first liquid cooling device 110 and one first hydraulic module 120, respectively, of system a. The second liquid cooling device 210 includes two second refrigerant circulation channels, and normally only one second refrigerant circulation channel is opened. And when one second refrigerant circulation flow path fails, the other second refrigerant circulation flow path is started. When the system B is started, the second refrigerant circulation flow path with short operation time is preferentially started. When the system B is not shut down all the time, the system B is operated for three months (the operation time can be set by a user) to forcedly rotate the second refrigerant circulation flow path.

A plate heat exchanger is arranged between the first flow path 130 of the system A and the second flow path 230 of the system B, butterfly valves (corresponding to the first control valve 411 to the fourth control valve 414) are arranged at the ports of each heat exchanger of the heat exchanger, each butterfly valve is normally in a closed state, when the system B cannot operate, each butterfly valve connected with the plate heat exchanger is opened, at the moment, the first flow path 130 and the second flow path 230 are respectively communicated with the plate heat exchanger, the first fluid in the first flow path 130 and the second fluid in the second flow path 230 can exchange heat, and the cold energy of the system A can be transferred to an indoor unit in large equipment. The cooling of the large equipment space is not affected. When the same system A cannot operate, the system B can also cool the large-scale centralized heating equipment through the plate heat exchanger.

It will be appreciated by those skilled in the art that in the above-described method of the specific embodiment, the written order of steps is not meant to imply a strict order of execution but rather should be construed according to the function and possibly inherent logic of the steps.

The foregoing description of various embodiments is intended to highlight differences between the various embodiments, which are the same or similar and are referred to each other for brevity and are not repeated herein.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application and not for limiting the same; while the application has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications and equivalents of some of the features of the specific embodiments of the present application may be made, and they are all included in the scope of the present application as claimed.

Claims

1. A liquid cooling system, comprising:

a first liquid cooling apparatus (100) comprising a first refrigeration module (110) and a first flow path (130), the first refrigeration module (110) 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 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) 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 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 operating device comprising a heat exchanger control configured to operatively connect or disconnect the heat exchanger (300) with the first flow path (130) and/or to operatively connect or disconnect the heat exchanger (300) with the second flow path (230) such that the first flow path (130) and the second flow path (230) have a heat exchange state in which the first flow path (130) and the second flow path (230) communicate with the heat exchanger (300) to thermally exchange the first fluid with the second fluid within the heat exchanger (300) and a thermally isolated state in which at least one of the first flow path (130) and the second flow path (230) is disconnected from the heat exchanger (300) to thermally isolate the first fluid from the second fluid.

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 an indoor space in which the heat generating apparatus is located.

4. The liquid cooling system according to claim 1, wherein,

the heat exchanger (300) includes a first heat exchange flow path, a second heat exchange flow path, first and second heat exchanger ports in communication with the first heat exchange flow path, and third and fourth heat exchanger ports in communication with the second heat exchange flow path;

the heat exchanger control part comprises 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), wherein the first control valve (411) is connected between the first heat exchanger port and the first flow path (130) to control the first heat exchanger port to be communicated with or disconnected from 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 second heat exchanger port to be communicated with or disconnected from 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 third heat exchanger port to be communicated with or disconnected from the second flow path (230), and the fourth control valve (414) is connected between the fourth heat exchanger port and the second flow path (230) to control the fourth heat exchanger port to be communicated with or disconnected from the second flow path (230).

5. The liquid cooling system according to claim 1, wherein,

the first liquid cooling device (100) comprises at least one first refrigeration module (110), the first refrigeration module (110) comprising at least one first refrigerant circulation flow path (111), the first refrigerant circulation flow path (111) being configured to cool the first fluid;

the second liquid cooling device (200) comprises at least one second refrigeration module (210), the second refrigeration module (210) comprising at least one second refrigerant circulation flow path configured to cool the second fluid.

6. The liquid cooling system according to claim 1, wherein,

at least one of said first refrigeration modules (110) is identical to at least one of said second refrigeration modules (210); and/or

At least one of the first refrigerant circulation flow paths (111) is identical to 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) comprises 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) comprises 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) comprises more than two second refrigerating modules (210), and the more than two second refrigerating modules (210) are connected in parallel; and/or

The second refrigeration module (210) comprises more than two 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) comprises more than two first refrigeration modules (110), and at least two first refrigeration modules (110) are identical; and/or

The first refrigeration module (110) comprises more than two first refrigerant circulation flow paths (111), and at least two first refrigerant circulation flow paths (111) are identical; and/or

The second liquid cooling device (200) comprises more than two second refrigerating modules (210), and at least two second refrigerating modules (210) are identical; and/or

The second refrigeration module (210) comprises more than two second refrigerant circulation flow paths, and at least two second refrigerant circulation flow paths are identical.

9. The liquid cooling system according to claim 5, wherein,

the first liquid cooling device (100) comprises more than two first refrigerating modules (110), the first flow path (130) comprises a first conveying part and more than two first heat exchanging parts corresponding to the more than two first refrigerating modules (110), the first heat exchanging parts are configured to exchange heat with the corresponding first refrigerating modules (110) to cool the first fluid, the liquid cooling system operating device comprises a first refrigerating module control part, and the first refrigerating module control part is arranged between each heat exchanging part and the conveying part and is configured to control the first heat exchanging parts to be communicated with or disconnected from the first conveying part; and/or

The second liquid cooling device (200) comprises more than two second refrigerating modules (210), the second flow path (230) comprises a second conveying part and more than two second heat exchanging parts corresponding to the more than two second refrigerating modules (210), the second heat exchanging parts are configured to exchange heat with the corresponding second refrigerating modules (210) to cool the second fluid, the liquid cooling system operating device comprises a second refrigerating module control part, the second refrigerating module control part is arranged between each heat exchanging part and the conveying part, and the second heat exchanging parts are configured to be controlled to be communicated with or disconnected from the second conveying part.

10. The liquid cooling system of claim 5, wherein the number of first refrigeration modules (110) is greater than the number of second refrigeration modules (210).

11. The liquid cooling system according to claim 5, wherein,

the first liquid cooling device (100) comprises four first refrigeration modules (110);

the first refrigeration module (110) comprises two first refrigerant circulation flow paths (111);

said second liquid cooling means (200) comprising one of said second refrigeration modules (210);

the second refrigeration 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) comprises a first hydraulic module (120), the first hydraulic module (120) comprises a first liquid feeding flow path (1239) and a first return flow path (1219), the first liquid feeding flow path (1239) is connected in series with the first inflow flow path (131), the first return flow path (1219) is connected in series with the first outflow flow path (132), the first hydraulic module (120) comprises a first pump (1227), and the first pump (1227) is arranged on the first liquid feeding flow path (1239) or the first 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) comprises a second hydraulic module (220), the second hydraulic module (220) comprises a second liquid feeding flow path and a second return flow path, the second liquid feeding flow path is connected in series with the second inflow flow path (231), the second return flow path is connected in series with the second outflow flow path (232), the second hydraulic module (220) comprises a second pump, and the second pump is arranged on the second liquid feeding flow path or the second return flow path and is configured to drive the second fluid to flow in the second flow path (230).

13. The liquid cooling system of a heat generating device of claim 12, wherein the first hydraulic module (120) and the second hydraulic module (220) are identical.

14. The liquid cooling system of a heat generating apparatus according to any one of claims 1 to 13, further comprising a control device in signal connection with the liquid cooling system operating device configured to control an operation of the liquid cooling system operating device.

15. A method of controlling a liquid cooling system according to any one of claims 1 to 14, comprising:

operating the heat exchanger control to place the first flow path (130) and the second flow path (230) in the thermally isolated state when both the first liquid cooling device (100) and the second liquid cooling device (200) are in an operating 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 state, the heat exchanger control unit is operated so that the first flow path (130) and the second flow path (230) are in the heat exchange state.

16. The control method according to claim 15, wherein,

The heat exchanger control part comprises 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), wherein the first control valve (411) is connected between the first heat exchanger port and the first flow path (130) to control the first heat exchanger port to be communicated with or disconnected from 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 second heat exchanger port to be communicated with or disconnected from 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 third heat exchanger port to be communicated with or disconnected from the second flow path (230), and the fourth control valve (414) is connected between the fourth heat exchanger port and the second flow path (230) to control the fourth heat exchanger port to be communicated with or disconnected from the second flow path (230);

the control method comprises the following steps:

manipulating the heat exchanger control to place the first flow path (130) and the second flow path (230) in the thermally isolated state includes closing the first control valve (411), the second control valve (412), the third control valve (413), and the fourth control valve (414);

Manipulating the heat exchanger control 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 second liquid cooling device (200) comprises at least one second refrigeration module (210), the second refrigeration module (210) comprising at least one second refrigerant circulation flow path configured to cool the second fluid;

the control method comprises the following steps:

the first liquid cooling device (100) comprises more than two first refrigerating modules (110), when the first liquid cooling device (100) is in an operation state, one part of the more than two first refrigerating modules (110) is in an operation state, and the rest part of the more than two first refrigerating modules is in a standby state; and/or

The first refrigeration module (110) comprises more than two first refrigerant circulation flow paths (111), and when the first liquid cooling device (100) is in an operation state, one part of the more than two first refrigerant circulation flow paths (111) is in an operation state, and the rest part is in a standby state; and/or

The second liquid cooling device (200) comprises more than two second refrigerating modules (210), when the second liquid cooling device (200) is in an operating state, one part of the more than two second refrigerating modules (210) is in an operating state, and the rest part of the more than two second refrigerating modules is in a standby state; and/or

The second refrigeration module (210) comprises more than two second refrigerant circulation flow paths, and when the second liquid cooling device (200) is in an operation state, one part of the more than two second refrigerant circulation flow paths is in an operation state, and the rest part of the more than two second refrigerant circulation flow paths are in a standby state.

18. The control method according to claim 17, characterized in that,

the first liquid cooling device (100) comprises more than two first refrigerating modules (110), and when the first liquid cooling device (100) is switched from a stop operation state to an operation state, the first refrigerating modules (110) with the total operation time length in the more than two first refrigerating modules (110) are preferentially in the operation state; and/or

The first refrigeration module (110) comprises more than two first refrigerant circulation flow paths (111), and when the first liquid cooling device (100) is switched from a stop operation state to an operation state, the first refrigerant circulation flow paths (111) with the total operation time length in the more than two first refrigerant circulation flow paths (111) are preferentially in the operation state; and/or

The second liquid cooling device (200) comprises more than two second refrigerating modules (210), and when the second liquid cooling device (200) is switched from a stop operation state to an operation state, the second refrigerating modules (210) with the total operation time length in the more than two second refrigerating modules (210) are preferentially in the operation state; and/or

The second refrigeration module (210) comprises more than two second refrigerant circulation flow paths, and when the second liquid cooling device (200) is switched from a stop operation state to an operation state, the second refrigerant circulation flow paths with the total operation time length in the more than two second refrigerant circulation flow paths are preferentially in the operation state.

19. The control method according to claim 16, characterized in that,

the first liquid cooling device (100) comprises more than two first refrigerating modules (110), when the operation time of the first liquid cooling device (100) exceeds a first preset time, at least one first refrigerating module (110) in an operation state is switched to a standby state, and at least one first refrigerating module (110) in the standby state is switched to the operation state; and/or

The first refrigeration module (110) comprises more than two first refrigerant circulation flow paths (111), when the operation time of the first liquid cooling device (100) exceeds a second preset time, at least one first refrigerant circulation flow path (111) in an operation state is switched to a standby state, and at least one first refrigerant circulation flow path (111) in the standby state is switched to the operation state; and/or

The second liquid cooling device (200) comprises more than two second refrigerating modules (210), when the operation time of the second liquid cooling device (200) exceeds a third preset time, at least one second refrigerating module (210) in an operation state is switched to a standby state, and at least one second refrigerating module (210) in the standby state is switched to the operation state; and/or

The second refrigeration module (210) comprises more than two second refrigerant circulation flow paths, when the operation time of the second liquid cooling device (200) exceeds a fourth preset time, at least one second refrigerant circulation flow path in an operation state is switched to a standby state, and at least one second refrigerant circulation flow path in the standby state is switched to the operation state.