Data center liquid cooling heat exchange system, server, and data center liquid cooling heat exchange method

Abstract

The embodiments of the present application provide a data center liquid cooling heat exchange system, a server, and a data center liquid cooling heat exchange method. The data center liquid cooling heat exchange system includes: a first heat exchange pipeline; a second heat exchange pipeline; an intermediate heat exchanger, wherein the first heat exchange pipeline and the second heat exchange pipeline are both connected to the intermediate heat exchanger, and the first heat exchange pipeline and the second heat exchange pipeline exchange heat through the intermediate heat exchanger; a circulating pump assembly, wherein the circulating pump assembly is arranged on the second heat exchange pipeline, and the circulating pump assembly includes multiple circulating pumps and a circulating control valve, and the circulating control valve is used to control the series and parallel relationship between the circulating pumps; a pressure-stabilizing and liquid-infusion assembly, wherein the pressure-stabilizing and liquid-infusion assembly is connected to the second heat exchange pipeline, and the pressure-stabilizing and liquid-infusion assembly is used to pressurize or depressurize the second heat exchange pipeline. The present application solves the problem in the related art that the dual-pump parallel connection method cannot meet the scenario requirements.

Description

Technical Field

[0001] The embodiments of the present application relate to the server field, and more specifically, to a data center liquid cooling heat exchange system, a server, and a data center liquid cooling heat exchange method. Background Art

[0002] Currently, air cooling has reached a bottleneck in its ability to dissipate heat for high-power density chips, making liquid cooling a must. Among liquid cooling technologies, cold plate liquid cooling is a common method.

[0003] Cold plate liquid cooling technology removes heat from heat-generating components within the server (primarily chips, but also memory and other heat-generating components) by circulating coolant through the secondary side of the liquid cooling system. To ensure coolant cleanliness and improve the reliability of the liquid cooling system, the heat absorbed by the secondary side coolant is exchanged through the heat exchanger of the liquid cooling heat exchange unit (also known as the cooling distribution unit). The heat is ultimately removed by circulating water on the primary side and dissipated to the outdoor environment through the cooling source equipment.

[0004] Current cooling distribution units typically use a dual-pump parallel circulation system. While a single pump can generally meet demand, dual pumps offer backup and failover capabilities. However, this dual-pump parallel system cannot meet pressure differential requirements under conditions such as large pressure differentials. Furthermore, its flexibility is limited, and it can only meet requirements for small pressure differentials and low flow rates. Summary of the Invention

[0005] The embodiments of the present application provide a data center liquid cooling heat exchange system, a server, and a data center liquid cooling heat exchange method, so as to at least solve the problem that the dual-pump parallel connection method in the related art cannot meet the scenario requirements.

[0006] According to one embodiment of the present application, a data center liquid cooling heat exchange system is provided, including: a first heat exchange pipeline; a second heat exchange pipeline; an intermediate heat exchanger, the first heat exchange pipeline and the second heat exchange pipeline are both connected to the intermediate heat exchanger, and the first heat exchange pipeline and the second heat exchange pipeline exchange heat through the intermediate heat exchanger; a circulating pump assembly, the circulating pump assembly is arranged on the second heat exchange pipeline, the circulating pump assembly includes multiple circulating pumps and a circulating control valve, and the circulating control valve is used to control the series and parallel relationship between the circulating pumps; a pressure-stabilizing fluid infusion assembly, the pressure-stabilizing fluid infusion assembly is connected to the second heat exchange pipeline, and the pressure-stabilizing fluid infusion assembly is used to pressurize or depressurize the second heat exchange pipeline.

[0007] In an exemplary embodiment, all circulation pumps include a first circulation pump and a second circulation pump, and the first circulation pump, the circulation control valve and the second circulation pump are sequentially arranged on the second heat exchange pipeline, and the circulation pump assembly also includes: a first branch, both ends of the first branch are connected to the first heat exchange pipeline, and are connected in parallel with the first circulation pump and the circulation control valve; a second branch, both ends of the second branch are connected to the first heat exchange pipeline, and are connected in parallel with the circulation control valve and the second circulation pump.

[0008] In an exemplary embodiment, the circulation pump assembly further includes at least one one-way valve, and the first branch and / or the second branch are provided with a one-way valve.

[0009] In an exemplary embodiment, the pressure-stabilizing fluid infusion component includes: a main circuit, which is connected to the second heat exchange pipeline and can be connected to the external liquid supply pipeline; a liquid storage tank, whose two connecting ports are connected to the main circuit through the first connecting pipeline and the second connecting pipeline respectively, and the connection between the first connecting pipeline and the main circuit is closer to the second heat exchange pipeline than the connection between the second connecting pipeline and the main circuit; a fluid infusion pump, which is located on the main circuit and is connected in parallel with the liquid storage tank.

[0010] In an exemplary embodiment, the pressure-stabilizing fluid infusion component further includes a fluid infusion control valve, which is provided at least one of the segment between the first connecting pipeline and the second heat exchange pipeline on the main pipeline and the second connecting pipeline.

[0011] In an exemplary embodiment, the pressure-stabilizing fluid infusion assembly further includes a pressure relief control valve, which is located on the first connecting pipeline.

[0012] In an exemplary embodiment, along the flow direction of the medium in the second heat exchange pipeline, the intermediate heat exchanger, the pressure stabilizing and liquid replenishing component and the circulation pump component are arranged in sequence.

[0013] In an exemplary embodiment, the data center liquid cooling heat exchange system also includes: an inlet pressure detection component, which is located at the inlet end of the second heat exchange pipeline and can detect the pressure conditions at the inlet of the second heat exchange pipeline; an outlet pressure detection component, which is located at the outlet end of the second heat exchange pipeline and can detect the pressure conditions at the outlet of the second heat exchange pipeline.

[0014] In an exemplary embodiment, the data center liquid cooling heat exchange system further includes: a constant pressure detection component, which is located at the inlet end of the circulation pump assembly and can detect the pressure condition at the inlet end of the circulation pump assembly.

[0015] In an exemplary embodiment, the data center liquid cooling heat exchange system also includes: a first control valve, which is located on the first heat exchange pipeline and can control the on-off and flow rate of the first heat exchange pipeline; an outlet temperature detection component, which is located at the outlet end of the second heat exchange pipeline and can detect the temperature at the outlet of the second heat exchange pipeline.

[0016] In an exemplary embodiment, the data center liquid cooling heat exchange system further includes a safety valve and an expansion tank, and both the safety valve and the expansion tank are in communication with the second heat exchange pipeline.

[0017] In an exemplary embodiment, the data center liquid cooling heat exchange system further includes a filter assembly, and the first heat exchange pipeline and / or the second heat exchange pipeline are provided with the filter assembly.

[0018] In an exemplary embodiment, the filter assembly includes a filter branch and a communication branch, the filter branch and the communication branch are arranged in parallel, and both the filter branch and the communication branch are provided with a filter control valve.

[0019] In an exemplary embodiment, the data center liquid cooling heat exchange system also includes: a flow detection element, a flow detection element is provided on the first heat exchange pipeline and / or the second heat exchange pipeline; and / or a temperature detection element, a temperature detection element is provided on the first heat exchange pipeline and / or the second heat exchange pipeline; and / or an automatic exhaust valve, an automatic exhaust valve is provided on the first heat exchange pipeline and / or the second heat exchange pipeline; and / or a buffer tank, a buffer tank is provided on the first heat exchange pipeline and / or the second heat exchange pipeline; and / or a drainage pipeline, the drainage pipeline is connected to the first heat exchange pipeline and / or the second heat exchange pipeline; and / or a liquid storage tank overflow pipe, the liquid storage tank overflow pipe is connected to the pressure stabilizing and replenishing component.

[0020] In an exemplary embodiment, the data center liquid cooling heat exchange system also includes a bypass branch, both ends of which are connected to the first heat exchange pipeline, and the bypass branch is connected in parallel with the intermediate heat exchanger, the circulation pump assembly and the pressure stabilizing liquid replenishment assembly.

[0021] According to another embodiment of the present application, a server is provided, comprising the above-mentioned data center liquid cooling heat exchange system.

[0022] According to another embodiment of the present application, a data center liquid cooling heat exchange method is provided, which adopts the above-mentioned data center liquid cooling heat exchange system. The data center liquid cooling heat exchange method includes a circulation pump system control process, and the circulation pump system control process includes: the circulation pump component controls the state of the circulation control valve according to the pressure difference and flow conditions of the second heat exchange pipeline to change the series and parallel relationship between the circulation pumps; when the pressure difference of the second heat exchange pipeline is less than or equal to the predetermined pressure difference, and the flow rate is less than or equal to the predetermined flow rate, the circulation control valve is closed, the circulation pumps are connected in parallel, and at least one circulation pump is turned off; when the pressure difference of the second heat exchange pipeline is less than or equal to the predetermined pressure difference, and the flow rate is greater than the predetermined flow rate, the circulation control valve is closed, the circulation pumps are connected in parallel, and the circulation pump is turned on; when the pressure difference of the second heat exchange pipeline is greater than the predetermined pressure difference, and the flow rate is greater than the predetermined flow rate, the circulation control valve is opened, the circulation pumps are connected in series, and the circulation pump is turned on.

[0023] In an exemplary embodiment, when the pressure difference of the second heat exchange pipeline is less than or equal to the predetermined pressure difference and the flow rate is less than or equal to the predetermined flow rate, the circulation control valve is closed, and the circulation pumps are connected in parallel, the circulation pumps are switched on.

[0024] In an exemplary embodiment, the circulation pump system control process further includes: calculating the pressure difference of the second heat exchange pipeline according to the pressure values ​​detected by the inlet pressure detection component and the outlet pressure detection component.

[0025] In an exemplary embodiment, the data center liquid cooling heat exchange method also includes a pressure-stabilizing fluid replenishment system control process, which includes: during automatic fluid replenishment, the fluid replenishment control valve is opened, and when the pressure value detected by the constant pressure detection component is less than the predetermined constant pressure, the fluid replenishment pump is turned on and the medium in the liquid storage tank is pumped into the second heat exchange pipeline until the pressure value detected by the constant pressure detection component is greater than or equal to the predetermined constant pressure, and the fluid replenishment pump is turned off.

[0026] In an exemplary embodiment, the pressure stabilizing fluid replenishment system control process further includes: when the pressure value detected by the constant pressure detection component is greater than the predetermined pressure relief pressure, the pressure relief control valve opens, and the medium in the second heat exchange pipeline flows into the liquid storage tank.

[0027] In an exemplary embodiment, the control process of the pressure-stabilizing fluid replenishment system also includes: when fluid is replenished to the fluid storage tank from the outside, the fluid replenishment control valve is closed, and after the main line is connected to the external fluid supply pipeline, the pressure relief control valve is opened, the fluid replenishment pump is turned on, and the fluid replenishment pump pumps the external medium into the fluid storage tank.

[0028] In an exemplary embodiment, the control process of the pressure-stabilizing fluid replenishment system also includes: when fluid is replenished from the outside to the second heat exchange pipeline, the fluid replenishment control valve on the main line is opened, and the fluid replenishment control valve and the pressure relief control valve on the second connecting pipeline are both closed. After the main line is connected to the external fluid supply pipeline, the fluid replenishment pump is turned on, and the fluid replenishment pump pumps the external medium into the second heat exchange pipeline.

[0029] In an exemplary embodiment, the data center liquid cooling heat exchange method also includes a secondary side liquid supply temperature control process, and the secondary side liquid supply temperature control process includes: when the temperature value detected by the outlet temperature detection component is greater than the predetermined temperature, the opening of the first control valve increases; when the temperature value detected by the outlet temperature detection component is less than the predetermined temperature, the opening of the first control valve decreases; when the temperature value detected by the outlet temperature detection component is equal to the predetermined temperature, the opening of the first control valve remains unchanged.

[0030] Through the present application, by providing a circulation pump assembly with multiple circulation pumps and circulation control valves, the opening and closing of the circulation control valves can change the series-parallel relationship between the circulation pumps, so that the coordination relationship between the circulation pumps can be changed accordingly as needed. When the pressure difference and flow rate are small, one circulation pump can meet the pressure difference and flow rate requirements. At this time, only one circulation pump can be turned on and the other circulation pumps can be turned off; when the flow rate is large, one circulation pump has reached the highest frequency and still cannot meet the flow rate requirement. At this time, the circulation control valve can be used to form a parallel coordination relationship between the circulation pumps, and then the circulation pumps can be turned on. The circulation pumps produce a parallel effect to achieve the required pressure difference and flow rate; when the pressure difference is large, one circulation pump cannot meet the predetermined pressure difference. At this time, the circulation control valve forms a series coordination relationship between the circulation pumps, and the series effect of the circulation pumps achieves the required large pressure difference. The above-mentioned setting method, through the optimization adjustment of the series-parallel coordination method, broadens the use scenarios of the system while ensuring the operating range requirements and high reliability of the conventional system; it can meet the requirements of the same flow rate as the conventional system but with a larger pressure difference; it can also meet the requirements of the same pressure difference as the conventional system but with a larger flow rate. In actual data center scenarios, this can accommodate liquid-cooled servers with higher resistance, longer secondary ring network pipes, and server rooms located on floors significantly higher than the intermediate heat exchange system, making the device more widely applicable. Furthermore, the pressure-stabilizing and liquid-replenishing components offer a simplified design and comprehensive functionality. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 1 is a schematic structural diagram of a data center liquid cooling and heat exchange system according to the first embodiment of the present application;

[0032] Figure 2 1 is a structural diagram of a data center liquid cooling and heat exchange system according to the second embodiment of the present application;

[0033] Figure 3 1 is a schematic structural diagram of a data center liquid cooling and heat exchange system according to the third embodiment of the present application;

[0034] Figure 4 It is a structural diagram of a data center liquid cooling heat exchange system according to Example 5 of the present application.

[0035] The above drawings include the following reference numerals:

[0036] 10. First heat exchange pipeline; 20. Second heat exchange pipeline; 30. Intermediate heat exchanger; 40. Circulation pump assembly; 41. Circulation pump; 42. Circulation control valve; 43. First branch; 44. Second branch; 45. One-way valve; 50. Pressure-stabilizing fluid replenishment assembly; 51. Main line; 52. Fluid storage tank; 53. First connecting pipeline; 54. Second connecting pipeline; 55. Fluid replenishment pump; 56. Fluid replenishment control valve; 57. Pressure relief control valve ; 60. Inlet pressure detection component; 70. Outlet pressure detection component; 80. Constant pressure detection component; 90. First control valve; 100. Outlet temperature detection component; 110. Safety valve; 120. Expansion tank; 130. Filter assembly; 131. Filter branch; 132. Connecting branch; 140. Flow detection component; 150. Temperature detection component; 160. Automatic exhaust valve; 170. Buffer tank; 180. Bypass branch. DETAILED DESCRIPTION

[0037] The embodiments of the present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0038] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0039] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0040] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above directional words are not used to limit the present invention.

[0041] To address the problem that the dual-pump parallel connection method in related technologies cannot meet scenario requirements, the present invention provides a data center liquid cooling heat exchange system, a server, and a data center liquid cooling heat exchange method. The server has the following data center liquid cooling heat exchange system.

[0042] Example 1

[0043] like Figure 1A data center liquid cooling heat exchange system shown includes a first heat exchange pipeline 10, a second heat exchange pipeline 20, an intermediate heat exchanger 30, a circulation pump assembly 40 and a pressure-stabilizing fluid replenishment assembly 50. The first heat exchange pipeline 10 and the second heat exchange pipeline 20 are both connected to the intermediate heat exchanger 30, and the first heat exchange pipeline 10 and the second heat exchange pipeline 20 exchange heat through the intermediate heat exchanger 30; the circulation pump assembly 40 is arranged on the second heat exchange pipeline 20, and the circulation pump assembly 40 includes multiple circulation pumps 41 and a circulation control valve 42, and the circulation control valve 42 is used to control the series and parallel relationship between the circulation pumps 41; the pressure-stabilizing fluid replenishment assembly 50 is connected to the second heat exchange pipeline 20, and the pressure-stabilizing fluid replenishment assembly 50 is used to pressurize or depressurize the second heat exchange pipeline 20.

[0044] In this embodiment, the circulation pump assembly 40 is provided with multiple circulation pumps 41 and circulation control valves 42. The opening and closing of the circulation control valves 42 can change the series and parallel relationship between the circulation pumps 41, so that the coordination relationship between the circulation pumps 41 can be changed accordingly as needed. When the pressure difference and flow rate are small, one circulation pump 41 can meet the pressure difference and flow rate requirements. In this case, only one circulation pump 41 can be turned on and the other circulation pumps 41 can be turned off. When the flow rate is large, one circulation pump 41 has reached the highest frequency but still cannot meet the flow rate requirement. In this case, the circulation control valves 42 can be used to form a parallel coordination relationship between the circulation pumps 41, and then the circulation pumps 41 can be turned on. The circulation pumps 41 produce a parallel effect to achieve the required pressure difference and flow rate. When the pressure difference is large, one circulation pump 41 cannot meet the predetermined pressure difference. In this case, the circulation control valves 42 form a series coordination relationship between the circulation pumps 41, and the series effect of the circulation pumps 41 can achieve the required large pressure difference. This configuration, through optimized adjustments to the series-parallel configuration, broadens the system's application scenarios while maintaining the conventional system's operating range and high reliability. It can meet requirements for the same flow rate as a conventional system, but with a greater pressure differential, or it can also meet requirements for the same pressure differential as a conventional system, but with a greater flow rate. In actual data center scenarios, this can accommodate liquid-cooled servers with greater resistance, longer secondary ring network piping, and situations where the server room is significantly higher than the floor where the intermediate heat exchange system is located, making the device more widely applicable. Furthermore, the pressure-stabilizing and rehydration assembly 50 features a simplified design and comprehensive functionality.

[0045] This embodiment is described by taking the case where two circulation pumps 41 are provided as an example. The two circulation pumps 41 are respectively a first circulation pump and a second circulation pump. Since the circulation control valve 42 needs to change the series-parallel relationship of the two circulation pumps 41, one circulation control valve 42 is provided and is arranged between the first circulation pump and the second circulation pump, thereby forming a structural form in which the first circulation pump, the circulation control valve 42 and the second circulation pump are arranged in sequence on the second heat exchange pipeline 20.

[0046] On this basis, to achieve series-parallel switching, the circulation pump assembly 40 of this embodiment further includes a first branch 43 and a second branch 44. The first branch 43 is connected to the first heat exchange pipeline 10 at both ends and is connected in parallel with both the first circulation pump and the circulation control valve 42. The second branch 44 is connected to the first heat exchange pipeline 10 at both ends and is connected in parallel with both the circulation control valve 42 and the second circulation pump. In other words, two connection points are formed between the two ends of the first branch 43 and the second heat exchange pipeline 20. The first circulation pump and the circulation control valve 42 are located in the section of the second heat exchange pipeline 20 corresponding to the two connection points of the first branch 43. Similarly, two connection points are formed between the two ends of the second branch 44 and the second heat exchange pipeline 20. The second circulation pump and the circulation control valve 42 are located in the section between the two connection points of the second branch 44 on the second heat exchange pipeline 20. In this way, by coordinating the setting of the circulation control valve 42 between the first circulation pump and the second circulation pump, the series-parallel relationship between the first circulation pump and the second circulation pump can be changed by changing the opening and closing of the circulation control pump.

[0047] It should be noted that the specific number and arrangement of the above-mentioned circulation pumps 41 can be adjusted as needed, for example, more circulation pumps 41, more branches, and more circulation control valves 42 can be provided, and the corresponding pipelines can also be adjusted, as long as the opening and closing of the circulation control valves 42 can control the series and parallel relationship between the circulation pumps 41. At the same time, the change in the series and parallel relationship does not necessarily require that all circulation pumps 41 be changed. The series and parallel relationship of some circulation pumps 41 can be changed, while the series and parallel relationship of some circulation pumps 41 remains unchanged.

[0048] In this embodiment, the circulation pump assembly 40 further includes at least one one-way valve 45, which is provided on the first branch 43 and / or the second branch 44. Since this embodiment has two branches, two one-way valves 45 are provided, one on each of the first branch 43 and the second branch 44. The one-way valves 45 can control the flow direction of the medium, so that the medium can only flow from the inlet end to the outlet end of the second heat exchange pipeline 20 and cannot flow in the opposite direction, thereby ensuring the overall medium flow effect.

[0049] In this embodiment, the pressure-stabilizing and rehydrating assembly 50 includes a main line 51, a liquid reservoir 52, and a rehydrating pump 55. The main line 51 is connected to the second heat exchange line 20 and can be connected to an external liquid supply line. The two connecting ports of the liquid reservoir 52 are connected to the main line 51 through a first connecting line 53 and a second connecting line 54, respectively. The connection between the first connecting line 53 and the main line 51 is closer to the second heat exchange line 20 than the connection between the second connecting line 54 and the main line 51. The rehydrating pump 55 is located on the main line 51 and is connected in parallel with the liquid reservoir 52. In this way, when rehydration is needed, the connection between the first connecting line 53, the second connecting line 54, and the main line 51 can be changed, so that the rehydrating pump 55 can pump the liquid in the liquid reservoir 52 into the second heat exchange line 20, thereby achieving pressure stabilization and rehydration of the second heat exchange line 20. At the same time, since the end of the main line 51 away from the second heat exchange pipeline 20 can be connected to the external liquid supply pipeline, the pressure-stabilizing liquid replenishment component 50 can also realize operations such as external liquid supply to the second heat exchange pipeline 20 or external liquid replenishment to the liquid storage tank 52, so that the design of the pressure-stabilizing liquid replenishment component 50 is simplified and the functions are complete.

[0050] In this embodiment, the pressure-stabilizing fluid replenishment assembly 50 also includes a fluid replenishment control valve 56. The fluid replenishment control valve 56 is provided at least one of the following locations: the section between the first connecting line 53 and the second heat exchange line 20 on the main line 51, and the second connecting line 54. This embodiment includes two fluid replenishment control valves 56, both of which are manual valves and are normally open during normal system operation. One of the two fluid replenishment control valves 56 is provided on the second connecting line 54, and the other is provided on the main line 51. The valves are located between the connection point between the first connecting line 53 and the main line 51 and the connection point between the main line 51 and the second heat exchange line 20, i.e., they are provided on the section of the main line 51 that must flow into the second heat exchange line 20. Generally speaking, the two liquid replenishment control valves 56 act synchronously, that is, they are opened or closed at the same time. However, when the liquid storage tank 52 is replenished from the outside, the two liquid replenishment control valves 56 are in an asynchronous state. In this way, through the cooperation of the liquid replenishment control valves 56, it is possible to realize liquid replenishment to the second heat exchange pipeline 20 through the liquid storage tank 52 during automatic control, and to realize liquid replenishment to the liquid storage tank 52 from the outside, and to realize liquid replenishment directly to the second heat exchange pipeline 20 from the outside, thus achieving multiple goals at one stroke.

[0051] In this embodiment, in addition to the aforementioned fluid infusion control valve 56, the pressure-stabilizing fluid infusion assembly 50 further includes a pressure relief control valve 57, which is located on the first connecting line 53. The use scenario of the pressure relief control valve 57 is opposite to that of the fluid infusion control valve 56. The fluid infusion control valve 56 is used to control the infusion of fluid into the second heat exchange line 20, while the pressure relief control valve 57 is used to control the discharge of the medium in the second heat exchange line 20. In other words, when the pressure in the second heat exchange line 20 is too high, the pressure relief control valve 57 can be opened, and the medium in the second heat exchange line 20 can flow into the liquid storage tank 52 through the pressure relief control valve 57, thereby achieving pressure relief and ensuring safety.

[0052] The aforementioned infusion pump 55 can be provided with only one, and multiple functions can be realized by a single infusion pump 55. In this way, the pressure-stabilized infusion function in all scenarios can be realized by using only a single infusion pump 55 and fewer valve components. This can not only ensure the reliability of the existing pressure-stabilized infusion system, but also simplify the system structure design, facilitate operation and maintenance, and achieve better cost performance.

[0053] In this embodiment, the pressure-stabilizing fluid replenishment assembly 50 and the circulating pump assembly 40 are both disposed downstream of the second heat exchange line 20. That is, along the flow direction of the medium in the second heat exchange line 20, the intermediate heat exchanger 30, the pressure-stabilizing fluid replenishment assembly 50, and the circulating pump assembly 40 are disposed sequentially. This allows the medium to undergo heat exchange through the intermediate heat exchanger 30 before passing through the connection between the pressure-stabilizing fluid replenishment assembly 50 and the second heat exchange line 20, the circulating pump assembly 40, and so on. Of course, one or more of the pressure-stabilizing fluid replenishment assembly 50, the circulating pump assembly 40, and so on can also be disposed upstream of the second heat exchange line 20. For example, along the flow direction of the medium in the second heat exchange line 20, the circulating pump assembly 40, the pressure-stabilizing fluid replenishment assembly 50, and the intermediate heat exchanger 30 can be disposed sequentially. In this case, the pressure at the client end is not the maximum pressure point in the system, providing appropriate protection for the client. Alternatively, the positions of the pressure-stabilizing fluid replenishment assembly 50 and the circulating pump assembly 40 can be interchanged, or other arrangements can be employed.

[0054] In this embodiment, the data center liquid cooling heat exchange system further includes an inlet pressure detection element 60 and an outlet pressure detection element 70. The specific types of the inlet pressure detection element 60 and the outlet pressure detection element 70 can be set as needed. In this embodiment, a pressure sensor is used. The inlet pressure detection element 60 is located at the inlet end of the second heat exchange pipeline 20 and is capable of detecting the pressure at the inlet of the second heat exchange pipeline 20. The outlet pressure detection element 70 is located at the outlet end of the second heat exchange pipeline 20 and is capable of detecting the pressure at the outlet of the second heat exchange pipeline 20. In this way, the pressure difference between the two ends of the second heat exchange pipeline 20 can be calculated by calculating the difference between the pressure values ​​detected by the inlet pressure detection element 60 and the outlet pressure detection element 70. The circulation pump assembly 40 can be controlled accordingly based on the pressure difference, so that the series-parallel relationship between the circulation pumps 41 can meet the requirements.

[0055] In this embodiment, the data center liquid cooling heat exchange system also includes a constant pressure pressure detection component 80. The constant pressure pressure detection component 80 can also use a pressure sensor. The constant pressure pressure detection component 80 is located at the inlet end of the circulation pump assembly 40, that is, located on the section between the connection point between the pressure stabilizing fluid replenishment component 50 and the second heat exchange pipeline 20 and the circulation pump assembly 40. The constant pressure pressure detection component 80 can detect the pressure condition at the inlet end of the circulation pump assembly 40, so that it can be judged whether the second heat exchange pipeline 20 needs fluid replenishment based on the pressure condition at the inlet end of the circulation assembly, thereby automatically controlling whether the pressure stabilizing fluid replenishment component 50 is replenished or not.

[0056] In this embodiment, the data center liquid cooling heat exchange system further includes a first control valve 90 and an outlet temperature detection element 100. The first control valve 90 is an automatic valve located on the first heat exchange pipeline 10 and capable of controlling the on / off state and flow rate of the first heat exchange pipeline 10. The outlet temperature detection element 100 can be a temperature sensor located at the outlet end of the second heat exchange pipeline 20, thereby detecting the temperature at the outlet of the second heat exchange pipeline 20. In this way, the temperature of the second heat exchange pipeline 20 can be determined based on the temperature detected by the outlet temperature detection element 100, that is, the heat exchange state of the second heat exchange pipeline 20 can be determined. The opening of the first control valve 90 on the first heat exchange pipeline 10 can then be controlled based on the heat exchange state, thereby controlling the flow rate of the first control valve 90 and thus controlling the heat exchange between the first heat exchange pipeline 10 and the second heat exchange pipeline 20, ensuring that the temperature of the second heat exchange pipeline 20 after heat exchange meets the requirements.

[0057] In this embodiment, the data center liquid cooling heat exchange system further includes a safety valve 110 and an expansion tank 120. Both safety valve 110 and expansion tank 120 are connected to the second heat exchange pipeline 20. In this embodiment, they are located at the connection point between the pressure-stabilizing and liquid-supplementing assembly 50 and the second heat exchange pipeline 20. Thus, safety valve 110 and expansion tank 120 further ensure the safety of the entire system. It should be noted that the aforementioned pressure relief control valve 57 also ensures system safety, forming a dual protection mechanism with the safety valve 110: the pressure relief control valve 57 serves as the primary protection mechanism, and the safety valve 110 serves as the secondary protection mechanism, thereby ensuring system safety.

[0058] This embodiment also provides a data center liquid cooling heat exchange method, which adopts the above-mentioned data center liquid cooling heat exchange system. The data center liquid cooling heat exchange method includes a circulation pump system control process, and the circulation pump system control process includes: the circulation pump component 40 controls the state of the circulation control valve 42 according to the pressure difference and flow of the second heat exchange pipeline 20 to change the series and parallel relationship between the circulation pumps 41; when the pressure difference of the second heat exchange pipeline 20 is less than or equal to the predetermined pressure difference, and the flow is less than or equal to the predetermined flow, the circulation control valve 42 is closed, the circulation pumps 41 are connected in parallel, and at least one circulation pump 41 is closed; when the pressure difference of the second heat exchange pipeline 20 is less than or equal to the predetermined pressure difference, and the flow is greater than the predetermined flow, the circulation control valve 42 is closed, the circulation pumps 41 are connected in parallel, and the circulation pump 41 is turned on; when the pressure difference of the second heat exchange pipeline 20 is greater than the predetermined pressure difference, and the flow is greater than the predetermined flow, the circulation control valve 42 is opened, the circulation pumps 41 are connected in series, and the circulation pump 41 is turned on.

[0059] Taking the embodiment in which two circulation pumps 41 are provided as an example, when faced with a small pressure difference and a small flow rate, the system determines that one circulation pump 41 can meet the set pressure difference, and the flow rate demand can also be covered by one circulation pump 41. At this time, only one circulation pump 41 can be controlled to be turned on; when faced with a small pressure difference and a large flow rate, the system determines that one circulation pump 41 can meet the set pressure difference, but at this time the circulation pump 41 has reached the highest frequency and cannot meet the flow rate demand. At this time, the system controls the two circulation pumps 41 to be turned on at the same time, so that the two circulation pumps 41 produce a parallel effect to achieve the required pressure difference and flow rate; when faced with a large pressure difference, the system determines that one circulation pump 41 cannot meet the set pressure difference. At this time, the system controls the two circulation pumps 41 to be turned on at the same time, so that the two circulation pumps 41 produce a series effect to achieve the required large pressure difference.

[0060] By combining the aforementioned data center liquid cooling heat exchange system with the aforementioned data center liquid cooling heat exchange method, the system's usage scenarios can be broadened while ensuring the operating range requirements and high reliability of conventional systems; it can meet the needs of the same flow rate but a larger pressure difference as conventional systems; it can also meet the needs of the same pressure difference but a larger flow rate as conventional systems.

[0061] Furthermore, when the pressure differential of the second heat exchange line 20 is less than or equal to a predetermined pressure differential and the flow rate is less than or equal to a predetermined flow rate, the circulation control valve 42 is closed, and the circulation pumps 41 are connected in parallel, the circulation pumps 41 are switched on and off. Taking the embodiment in which two circulation pumps 41 are provided as an example, the first circulation pump and the second circulation pump can be switched on and off sequentially, forming a regular switching operation mode. This allows the two circulation pumps 41 to alternately operate, which, on the one hand, can ensure the status of the circulation pumps 41 and extend their service life, and, on the other hand, can prevent the failure of one circulation pump 41 from affecting production.

[0062] In this embodiment, the circulating pump system control process further includes calculating the pressure difference of the second heat exchange pipeline 20 based on the pressure values ​​detected by the inlet pressure detection element 60 and the outlet pressure detection element 70. At the same time, the flow rate of the second heat exchange pipeline 20 can be detected by the flow detection element 140.

[0063] In this embodiment, the data center liquid cooling heat exchange method also includes a pressure-stabilizing fluid replenishment system control process, and the pressure-stabilizing fluid replenishment system control process includes: during automatic fluid replenishment, the fluid replenishment control valve 56 is opened, and when the pressure value detected by the constant pressure detection component 80 is less than the predetermined constant pressure, the fluid replenishment pump 55 is turned on and the medium in the liquid storage tank 52 is pumped into the second heat exchange pipeline 20 until the pressure value detected by the constant pressure detection component 80 is greater than or equal to the predetermined constant pressure, and the fluid replenishment pump 55 is turned off.

[0064] The control process of the pressure-stabilizing fluid replenishment system also includes: during automatic fluid replenishment, when the pressure value detected by the constant pressure detection component 80 is greater than the predetermined pressure relief pressure, the pressure relief control valve 57 opens, and the medium in the second heat exchange pipeline 20 flows into the liquid storage tank 52.

[0065] The control process of the pressure-stabilizing fluid replenishment system also includes: when fluid is replenished to the fluid storage tank 52 from the outside, the fluid replenishment control valve 56 is closed, and after the main line 51 is connected to the external fluid supply pipeline, the pressure relief control valve 57 is opened, and the fluid replenishment pump 55 is turned on, and the fluid replenishment pump 55 pumps the external medium into the fluid storage tank 52.

[0066] The control process of the pressure-stabilizing fluid replenishment system also includes: when fluid is replenished from the outside to the second heat exchange pipeline 20, the fluid replenishment control valve 56 on the main line 51 is opened, and the fluid replenishment control valve 56 and the pressure relief control valve 57 on the second connecting pipeline 54 are both closed. After the main line 51 is connected to the external fluid supply pipeline, the fluid replenishment pump 55 is turned on, and the fluid replenishment pump 55 pumps the external medium into the second heat exchange pipeline 20.

[0067] Taking the specific structure of this embodiment as an example, the control process of the above-mentioned pressure-stabilizing fluid infusion system mainly includes the following three aspects:

[0068] The first aspect is automatic control: Under normal circumstances, when the unit is automatically operating, both refill control valves 56 are normally open, disconnecting the main line 51 from the external liquid supply line. When the control system detects, through the constant pressure detection element 80, that the current pressure value is less than the predetermined constant pressure setting value, it indicates that the system pressure is insufficient and refilling is required. The refill pump 55 is then turned on, drawing liquid from the liquid storage tank 52 and replenishing it to the second heat exchange line 20. When the current pressure value is greater than or equal to the predetermined constant pressure setting value, it indicates that refilling is not required to the second heat exchange line 20, and the refill pump 55 is turned off. After the refill pump 55 is turned off, during automatic operation, if the pressure fluctuates and increases to a value greater than the predetermined relief pressure, it indicates that the pressure in the second heat exchange line 20 is too high and poses a safety risk. The pressure relief control valve 57 is then opened, and a portion of the medium in the second heat exchange line 20 is released to the liquid storage tank 52 until the system pressure drops to near the predetermined constant pressure, at which point the pressure relief control valve 57 is closed. The system realizes the automatic pressure stabilization and fluid replenishment function through the above operations.

[0069] The second aspect is to replenish the liquid into the liquid storage tank 52 from the outside: when replenishing the liquid into the liquid storage tank 52 from the outside, it is necessary to manually close the two replenishment control valves 56 first, and connect the main line 51 with the external liquid supply pipeline, and then open the replenishment pump 55 and the pressure relief control valve 57 to meet the replenishment needs of the liquid storage tank 52.

[0070] The third aspect is to replenish fluid to the system from the outside, that is, to the second heat exchange pipeline 20: when replenishing fluid to the second heat exchange pipeline 20 from the outside, it is necessary to manually close the fluid replenishment control valve 56 on the second connecting pipeline 54, and open the fluid replenishment control valve 56 on the main pipeline 51, and the pressure relief control valve 57 remains closed. After connecting the main pipeline 51 with the external fluid supply pipeline, the fluid replenishment pump 55 is opened through the manual mode of the controller to realize the need of external fluid replenishment to the system.

[0071] Through the above three aspects, the pressure-stabilizing fluid replenishment component 50 can realize the function of replenishing fluid to the system, and at the same time, it can also realize the function of replenishing fluid to the fluid storage tank 52 and directly replenishing fluid to the second heat exchange pipeline 20. In addition, the pressure-stabilizing fluid replenishment component 50 has a simple structure, a simplified design, reduced complexity, and complete functions.

[0072] In this embodiment, the data center liquid cooling heat exchange method also includes a secondary side liquid supply temperature control process, and the secondary side liquid supply temperature control process includes: when the temperature value detected by the outlet temperature detection component 100 is greater than the predetermined temperature, the opening of the first control valve 90 increases; when the temperature value detected by the outlet temperature detection component 100 is less than the predetermined temperature, the opening of the first control valve 90 decreases; when the temperature value detected by the outlet temperature detection component 100 is equal to the predetermined temperature, the opening of the first control valve 90 remains unchanged.

[0073] The aforementioned secondary-side supply liquid temperature control process allows the primary-side first heat exchange pipeline 10 to adjust its state based on the temperature of the secondary-side second heat exchange pipeline 20, thereby achieving the desired supply liquid temperature and regulating the secondary-side temperature. In actual control, the PID algorithm can be used to precisely control the opening of the first control valve 90 to accurately achieve the desired supply liquid temperature and regulate the secondary-side temperature.

[0074] By optimizing and adjusting both the overall structure and the method described above, the system's usage scenarios are broadened while maintaining the conventional system's operating range and high reliability. It can meet the same flow rate as conventional systems but with a greater pressure differential, or the same pressure differential as conventional systems but with a greater flow rate. In actual data center scenarios, this can cover liquid-cooled servers with greater resistance, or situations where the secondary ring network pipes are longer, and the server room is much higher than the floor where the intermediate heat exchange system is located, making the equipment more widely applicable. Furthermore, it can achieve multiple functions and meet various needs, while maintaining a simple overall structure and minimal complexity, which helps reduce costs and facilitates operation and maintenance.

[0075] Example 2

[0076] The difference from the first embodiment is that the data center liquid cooling heat exchange system of this embodiment further includes a filter assembly 130 .

[0077] Optionally, the first heat exchange pipeline 10 and / or the second heat exchange pipeline 20 is provided with a filter assembly 130. Figure 2 As shown, in this embodiment, filter assemblies 130 are provided on both the first heat exchange pipeline 10 and the second heat exchange pipeline 20. Filter assemblies 130 can filter the medium within the pipelines to ensure the purity of the medium and, in turn, the heat exchange effect. Of course, filter assemblies 130 can also be provided on only one of the first heat exchange pipeline 10 and the second heat exchange pipeline 20.

[0078] The filter assembly 130 of this embodiment includes a filter branch 131 and a connecting branch 132. Both ends of the filter branch 131 and the connecting branch 132 are connected to the heat exchange pipeline. The filter branch 131 and the connecting branch 132 are arranged in parallel, and each of the filter branch 131 and the connecting branch 132 is provided with a filter control valve. Thus, when filtering is required, the filter control valve on the filter branch 131 is opened and the filter control valve on the connecting branch 132 is closed, allowing the medium to pass through the filter branch 131 and the filter and other components disposed thereon, thereby filtering the medium. When filtering is not required, or when the filter branch 131 requires maintenance, the filter control valve on the filter branch 131 is closed and the filter control valve on the connecting branch 132 is opened. At this time, the medium in the heat exchange pipeline can flow normally, thereby enabling on-demand filtration. Furthermore, online maintenance can be performed without affecting normal operation, avoiding downtime for maintenance and improving work efficiency.

[0079] In addition to setting a filter only on the filtering branch 131, a filter can also be set on the connecting branch 132, that is, setting two completely identical branches that are connected in parallel. During normal operation, both branches can be used at the same time or only one of the branches can be used. When one branch needs maintenance, the branch is closed and the other branch is opened to perform maintenance on the branch that needs maintenance.

[0080] Of course, the specific configuration of the filter assembly 130 is not limited to the configuration described above in this embodiment. It can be adjusted accordingly as needed, and the number of branches arranged in parallel can also be increased accordingly as needed.

[0081] Example 3

[0082] The difference from Example 2 is that the data center liquid cooling heat exchange system of this embodiment also includes a flow detection component 140, a temperature detection component 150, an automatic exhaust valve 160 and a buffer tank 170. The flow detection component 140 is provided on the first heat exchange pipeline 10 and / or the second heat exchange pipeline 20; the temperature detection component 150 is provided on the first heat exchange pipeline 10 and / or the second heat exchange pipeline 20; the automatic exhaust valve 160 is provided on the first heat exchange pipeline 10 and / or the second heat exchange pipeline 20; and the buffer tank 170 is provided on the first heat exchange pipeline 10 and / or the second heat exchange pipeline 20.

[0083] like Figure 3As shown, this embodiment is provided with a flow detection element 140 and a temperature detection element 150 on both the first heat exchange pipeline 10 and the second heat exchange pipeline 20. The flow detection element 140 and the temperature detection element 150 can be used as flow sensors and temperature sensors as needed. This not only allows the output speed of the circulating pump 41 to be controlled by flow setting, but also allows the system heat exchange capacity to be calculated for reference by the customer. Since the outlet end of the second heat exchange pipeline 20 is provided with an outlet temperature detection element 100 in the aforementioned embodiment, it is not necessary to additionally provide a temperature detection element 150 at this location; the outlet temperature detection element 100 can be used to detect the outlet temperature.

[0084] In this embodiment, automatic exhaust valves 160 are separately provided on the first heat exchange pipeline 10 and the second heat exchange pipeline 20. At the same time, a buffer tank 170 is only provided on the second heat exchange pipeline 20, and the buffer tank 170 is also provided with an automatic exhaust valve 160, thereby reducing problems such as cavitation, system fluctuation or noise caused by the presence of gas inside the system.

[0085] Of course, the specific settings, settings positions, and settings quantities of the flow detection component 140, temperature detection component 150, automatic exhaust valve 160, and buffer tank 170 can be adjusted accordingly as needed and are not limited to the solution of this embodiment.

[0086] Example 4

[0087] The data center liquid cooling and heat exchange system of this embodiment differs from the third embodiment in that it further includes a drain line and a liquid tank overflow pipe. The drain line is connected to the first heat exchange line 10 and / or the second heat exchange line 20; the liquid tank overflow pipe is connected to the pressure-stabilizing and rehydrating assembly 50. The drain line can specifically include an automatically controlled line or a manually controlled line, thereby enabling control and maintenance of various lines. The liquid tank overflow pipe prevents safety risks such as excessive rehydration in the liquid tank 52, thereby ensuring safety.

[0088] Example 5

[0089] The difference from the third embodiment is that the data center liquid cooling heat exchange system of this embodiment further includes a bypass branch 180 .

[0090] like Figure 4As shown, in this embodiment, both ends of the bypass branch 180 are connected to the first heat exchange pipeline 10, and the bypass branch 180 is connected in parallel with the intermediate heat exchanger 30, the circulation pump assembly 40, and the pressure-stabilizing and liquid-infusing assembly 50. That is, along the flow direction of the medium in the second heat exchange pipeline 20, one connection point between the bypass branch 180 and the second heat exchange pipeline 20 is located on the inlet side of the intermediate heat exchanger 30, while the other connection point between the bypass branch 180 and the second heat exchange pipeline 20 is located on the outlet side of the circulation pump assembly 40. In this way, the bypass branch 180 can almost directly connect the inlet and outlet ends of the second heat exchange pipeline 20, so that the medium does not pass through the intermediate heat exchanger 30, the pressure-stabilizing and liquid-infusing assembly 50, and the circulation pump assembly 40. A control valve can be provided on the bypass branch 180 to adjust the opening and closing of the bypass branch 180 and the opening degree when it is opened, thereby realizing protection of the circulation pump 41 and precise control of the system pressure difference. The positional relationship between the bypass branch 180 and other components and parts, such as the filter assembly 130, the outlet pressure detection component 70, the temperature detection component 150, etc., can be adjusted as needed.

[0091] At the same time, a regulating valve may be connected in series on the second heat exchange pipeline 20 to further reduce the supply and return hydraulic pressure difference required by the user, thereby making the system pressure difference adjustment range wider.

[0092] The control valves, regulating valves and other valves in the above embodiments can be electromagnetic valves, electric ball valves and the like as needed. The term "a plurality" in the above embodiments refers to at least two.

[0093] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0094] 1. Solved the problem that the dual-pump parallel connection method in related technologies cannot meet the scene requirements;

[0095] 2. Through the optimization and adjustment of series and parallel coordination, the system's usage scenarios are broadened while ensuring the conventional system operating range requirements and high reliability;

[0096] 3. It can meet the needs of the same flow rate as the conventional system but with a larger pressure difference;

[0097] 4. It can meet the demand of the same pressure difference as conventional system but with larger flow rate;

[0098] 5. The pressure-stabilizing fluid replenishment component can replenish fluid to the system, and can also replenish fluid to the fluid storage tank and directly replenish fluid to the second heat exchange pipeline;

[0099] 6. The structure of the pressure-stabilizing and fluid-infusion component is simple, reducing complexity;

[0100] 7. The secondary side temperature can be adjusted.

[0101] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0102] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0103] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0104] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. made within the principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A data center liquid cooling heat exchange system, characterized in that: include: a first heat exchange pipeline (10); A second heat exchange pipeline (20); an intermediate heat exchanger (30), wherein the first heat exchange pipeline (10) and the second heat exchange pipeline (20) are both in communication with the intermediate heat exchanger (30), and the first heat exchange pipeline (10) and the second heat exchange pipeline (20) exchange heat through the intermediate heat exchanger (30); a circulation pump assembly (40), the circulation pump assembly (40) being arranged on the second heat exchange pipeline (20), the circulation pump assembly (40) comprising a plurality of circulation pumps (41) and a circulation control valve (42), the circulation control valve (42) being used to control the series and parallel relationship between the circulation pumps (41); a pressure-stabilizing fluid-infusion component (50), the pressure-stabilizing fluid-infusion component (50) being in communication with the second heat exchange pipeline (20), the pressure-stabilizing fluid-infusion component (50) being used to pressurize or depressurize the second heat exchange pipeline (20); When the pressure difference of the second heat exchange pipeline (20) is less than or equal to the predetermined pressure difference, and the flow rate is less than or equal to the predetermined flow rate, the circulation control valve (42) is closed, the circulation pumps (41) are connected in parallel, and at least one of the circulation pumps (41) is closed; When the pressure difference of the second heat exchange pipeline (20) is less than or equal to the predetermined pressure difference and the flow rate is greater than the predetermined flow rate, the circulation control valve (42) is closed, the circulation pumps (41) are connected in parallel, and the circulation pumps (41) are turned on; When the pressure difference of the second heat exchange pipeline (20) is greater than the predetermined pressure difference and the flow rate is greater than the predetermined flow rate, the circulation control valve (42) is opened, the circulation pumps (41) are connected in series, and the circulation pumps (41) are turned on.

2. The data center liquid cooling heat exchange system according to claim 1, characterized in that: All the circulating pumps (41) include a first circulating pump and a second circulating pump, wherein the first circulating pump, the circulating control valve (42) and the second circulating pump are sequentially arranged on the second heat exchange pipeline (20), and the circulating pump assembly (40) further includes: a first branch (43), wherein both ends of the first branch (43) are in communication with the first heat exchange pipeline (10), and are connected in parallel with the first circulation pump and the circulation control valve (42); A second branch (44), both ends of which are in communication with the first heat exchange pipeline (10), and are connected in parallel with the circulation control valve (42) and the second circulation pump.

3. The data center liquid cooling heat exchange system according to claim 2, characterized in that: The circulation pump assembly (40) further comprises at least one one-way valve (45), and the one-way valve (45) is provided on the first branch (43) and / or the second branch (44).

4. The data center liquid cooling heat exchange system according to claim 1, characterized in that: The pressure-stabilizing and fluid-infusing component (50) comprises: a main path (51), the main path (51) being in communication with the second heat exchange pipeline (20) and capable of being in communication with an external liquid supply pipeline; a liquid storage tank (52), wherein two communication ports of the liquid storage tank (52) are respectively connected to the main road (51) through a first communication pipeline (53) and a second communication pipeline (54), and the connection between the first communication pipeline (53) and the main road (51) is closer to the second heat exchange pipeline (20) than the connection between the second communication pipeline (54) and the main road (51); A fluid infusion pump (55), the fluid infusion pump (55) is located on the main path (51) and is connected in parallel with the fluid storage tank (52).

5. The data center liquid cooling heat exchange system according to claim 4, characterized in that: The pressure-stabilizing fluid replenishment component (50) further includes a fluid replenishment control valve (56), and the fluid replenishment control valve (56) is provided at least one of a section between the first connecting pipeline (53) and the second heat exchange pipeline (20) on the main line (51) and a section on the second connecting pipeline (54).

6. The data center liquid cooling heat exchange system according to claim 4, characterized in that: The pressure-stabilizing fluid-infusing assembly (50) further includes a pressure relief control valve (57), and the pressure relief control valve (57) is located on the first connecting pipeline (53).

7. The data center liquid cooling heat exchange system according to claim 1, characterized in that: Along the flow direction of the medium in the second heat exchange pipeline (20), the intermediate heat exchanger (30), the pressure-stabilizing fluid replenishing component (50) and the circulating pump component (40) are arranged in sequence.

8. The data center liquid cooling heat exchange system according to any one of claims 1 to 7, characterized in that: The data center liquid cooling heat exchange system also includes: an inlet pressure detection component (60), the inlet pressure detection component (60) being located at the inlet end of the second heat exchange pipeline (20) and capable of detecting the pressure condition at the inlet of the second heat exchange pipeline (20); An outlet pressure detection component (70) is located at the outlet end of the second heat exchange pipeline (20) and is capable of detecting the pressure condition at the outlet of the second heat exchange pipeline (20).

9. The data center liquid cooling heat exchange system according to any one of claims 1 to 7, characterized in that: The data center liquid cooling heat exchange system also includes: A constant pressure detection component (80) is located at the inlet end of the circulation pump assembly (40) and is capable of detecting the pressure condition at the inlet end of the circulation pump assembly (40).

10. The data center liquid cooling heat exchange system according to any one of claims 1 to 7, characterized in that: The data center liquid cooling heat exchange system also includes: a first control valve (90), the first control valve (90) being located on the first heat exchange pipeline (10) and capable of controlling the on / off state and flow rate of the first heat exchange pipeline (10); An outlet temperature detection component (100) is located at the outlet end of the second heat exchange pipeline (20) and is capable of detecting the temperature condition at the outlet of the second heat exchange pipeline (20).

11. The data center liquid cooling heat exchange system according to any one of claims 1 to 7, characterized in that: The data center liquid cooling heat exchange system further comprises a safety valve (110) and an expansion tank (120), and both the safety valve (110) and the expansion tank (120) are in communication with the second heat exchange pipeline (20).

12. The data center liquid cooling heat exchange system according to any one of claims 1 to 7, characterized in that: The data center liquid cooling heat exchange system further comprises a filter assembly (130), and the first heat exchange pipeline (10) and / or the second heat exchange pipeline (20) is provided with the filter assembly (130).

13. The data center liquid cooling heat exchange system according to claim 12, characterized in that: The filter assembly (130) comprises a filter branch (131) and a communication branch (132), the filter branch (131) and the communication branch (132) being arranged in parallel, and a filter control valve being arranged on both the filter branch (131) and the communication branch (132).

14. The data center liquid cooling heat exchange system according to any one of claims 1 to 7, characterized in that: The data center liquid cooling heat exchange system also includes: A flow detection component (140), the flow detection component (140) being provided on the first heat exchange pipeline (10) and / or the second heat exchange pipeline (20); and / or a temperature detecting element (150), the temperature detecting element (150) being provided on the first heat exchange pipeline (10) and / or the second heat exchange pipeline (20); and / or an automatic exhaust valve (160), the automatic exhaust valve (160) being provided on the first heat exchange pipeline (10) and / or the second heat exchange pipeline (20); and / or a buffer tank (170), the buffer tank (170) being provided on the first heat exchange pipeline (10) and / or the second heat exchange pipeline (20); and / or a liquid discharge pipeline, the liquid discharge pipeline being in communication with the first heat exchange pipeline (10) and / or the second heat exchange pipeline (20); and / or A liquid storage tank overflow pipe, the liquid storage tank overflow pipe is in communication with the pressure-stabilizing fluid infusion assembly (50).

15. The data center liquid cooling heat exchange system according to any one of claims 1 to 7, characterized in that: The data center liquid cooling heat exchange system further includes a bypass branch (180), both ends of which are connected to the first heat exchange pipeline (10), and the bypass branch (180) is connected in parallel with the intermediate heat exchanger (30), the circulating pump assembly (40) and the pressure stabilizing fluid replenishing assembly (50).

16. A server, characterized in that: A data center liquid cooling heat exchange system comprising the system described in any one of claims 1 to 15.

17. A data center liquid cooling heat exchange method, characterized in that: A data center liquid cooling heat exchange system according to any one of claims 1 to 15 is used, wherein the data center liquid cooling heat exchange method includes a circulating pump system control process, and the circulating pump system control process includes: The circulation pump assembly (40) controls the state of the circulation control valve (42) according to the pressure difference and flow rate of the second heat exchange pipeline (20) to change the series and parallel relationship between the circulation pumps (41); When the pressure difference of the second heat exchange pipeline (20) is less than or equal to the predetermined pressure difference, and the flow rate is less than or equal to the predetermined flow rate, the circulation control valve (42) is closed, the circulation pumps (41) are connected in parallel, and at least one of the circulation pumps (41) is closed; When the pressure difference of the second heat exchange pipeline (20) is less than or equal to the predetermined pressure difference and the flow rate is greater than the predetermined flow rate, the circulation control valve (42) is closed, the circulation pumps (41) are connected in parallel, and the circulation pumps (41) are turned on; When the pressure difference of the second heat exchange pipeline (20) is greater than the predetermined pressure difference and the flow rate is greater than the predetermined flow rate, the circulation control valve (42) is opened, the circulation pumps (41) are connected in series, and the circulation pumps (41) are turned on.

18. The data center liquid cooling heat exchange method according to claim 17, characterized in that: When the pressure difference of the second heat exchange pipeline (20) is less than or equal to the predetermined pressure difference, and the flow rate is less than or equal to the predetermined flow rate, the circulation control valve (42) is closed, and when the circulation pumps (41) are connected in parallel, each of the circulation pumps (41) is switched on.

19. The data center liquid cooling heat exchange method according to claim 17, characterized in that: The circulating pump system control process also includes: The pressure difference of the second heat exchange pipeline (20) is calculated based on the pressure values ​​detected by the inlet pressure detection component (60) and the outlet pressure detection component (70).

20. The data center liquid cooling heat exchange method according to any one of claims 17 to 19, characterized in that: The data center liquid cooling heat exchange method further includes a pressure stabilizing fluid replenishment system control process, and the pressure stabilizing fluid replenishment system control process includes: During automatic rehydration, the rehydration control valve (56) is opened, and when the pressure value detected by the constant pressure detection component (80) is less than the predetermined constant pressure, the rehydration pump (55) is turned on and pumps the medium in the liquid storage tank (52) into the second heat exchange pipeline (20), until the pressure value detected by the constant pressure detection component (80) is greater than or equal to the predetermined constant pressure, at which time the rehydration pump (55) is turned off.

21. The data center liquid cooling heat exchange method according to claim 20, characterized in that: The pressure-stabilizing fluid infusion system control process also includes: When the pressure value detected by the constant pressure detection element (80) is greater than the predetermined pressure relief pressure, the pressure relief control valve (57) opens, and the medium in the second heat exchange pipeline (20) flows into the liquid storage tank (52).

22. The data center liquid cooling heat exchange method according to claim 20, characterized in that: The pressure-stabilizing fluid infusion system control process also includes: When the liquid storage tank (52) is replenished from the outside, the liquid replenishment control valve (56) is closed, the main line (51) is connected to the external liquid supply pipeline, the pressure relief control valve (57) is opened, the liquid replenishment pump (55) is turned on, and the liquid replenishment pump (55) pumps the external medium into the liquid storage tank (52).

23. The data center liquid cooling heat exchange method according to claim 20, characterized in that: The pressure-stabilizing fluid infusion system control process also includes: When liquid is replenished from the outside to the second heat exchange pipeline (20), the liquid replenishment control valve (56) on the main pipeline (51) is opened, and the liquid replenishment control valve (56) and the pressure relief control valve (57) on the second connecting pipeline (54) are both closed. After the main pipeline (51) is connected to the external liquid supply pipeline, the liquid replenishment pump (55) is turned on, and the liquid replenishment pump (55) pumps the external medium into the second heat exchange pipeline (20).

24. The data center liquid cooling heat exchange method according to any one of claims 17 to 19, characterized in that: The data center liquid cooling heat exchange method further includes a secondary side liquid supply temperature control process, and the secondary side liquid supply temperature control process includes: When the temperature value detected by the outlet temperature detection element (100) is greater than a predetermined temperature, the opening degree of the first control valve (90) increases; When the temperature value detected by the outlet temperature detection element (100) is lower than a predetermined temperature, the opening degree of the first control valve (90) is reduced; When the temperature value detected by the outlet temperature detection element (100) is equal to a predetermined temperature, the opening degree of the first control valve (90) remains unchanged.

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