Heat exchange system and data machine room

Abstract

According to the heat exchange system and the data machine room, a plurality of first areas and second areas which are sequentially and alternately arranged in the preset direction are arranged in the machine room, and a cabinet set is arranged at the interval position between each first area and the corresponding second area; the first area and the second area are closed ventilation pipelines respectively; the cabinet group comprises a plurality of heat exchange assemblies and a plurality of cabinets, first air inlets of the heat exchange assemblies are communicated with the first area, second air outlets of the cabinets are communicated with the first area, first air outlets of the heat exchange assemblies are communicated with the second area, and second air inlets of the cabinets are communicated with the second area. The cold air cooled by the heat exchange assembly is uniformly guided into the first area, the heat exchange efficiency among the multiple cabinets is kept consistent, and the situation that in the process that the controller monitors the heat exchange efficiency of the cabinets, the cooling efficiency of part of the cabinets cannot meet the use requirement, the use power of the heat exchange assembly is increased, and finally energy waste is caused is avoided.

Description

Technical Field

[0001] This application relates to the technical field of heat exchange systems, and particularly to a heat exchange system and a data center. Background Technology

[0002] In recent years, data center development has trended towards high power density. In large data centers, besides chilled water units, sometimes site limitations prevent the use of chilled water systems, necessitating the use of multiple near-end cooling terminals, which require refrigerant instead of chilled water. Terminal types mainly include room air conditioners, room air ducts, in-row air conditioners, and backplane air conditioners. Room air conditioners and room air ducts effectively meet the needs of users who want to manage infrastructure equipment (air conditioning, power equipment, etc.) separately from IT equipment (servers, network equipment, etc.), but they have disadvantages such as large footprint and high energy consumption (the fans are close to the heat exchangers, and the blown air is affected by the heat exchangers, creating eddy current resistance).

[0003] Existing air conditioning systems cannot guarantee that the cool air can maintain a stable temperature when flowing to the server racks, resulting in uneven heat dissipation efficiency between server racks. Summary of the Invention

[0004] The purpose of this application is to provide a heat exchange system and a data center, which aims to solve the problem of maintaining consistent cooling efficiency across multiple server racks.

[0005] To achieve the above objectives, one aspect of this application provides a heat exchange system for cooling server racks in a computer room, comprising: a plurality of first and second regions arranged alternately in a preset direction within the computer room, and a rack group being provided at the interval between each of the first and second regions;

[0006] The first area and the second area are both enclosed ventilation ducts;

[0007] The rack group includes multiple heat exchange components and multiple racks. The first air inlet of the heat exchange component is connected to the first area, the second air outlet of the rack is connected to the first area, the first air outlet of the heat exchange component is connected to the second area, and the second air inlet of the rack is connected to the second area.

[0008] Optionally, in two adjacent cabinet groups, heat exchange components connected to the same first area are arranged opposite to each other or staggered.

[0009] Optionally, the heat exchange components of the two cabinet groups are arranged opposite to each other, and a first air outlet of the heat exchange component is provided with a first air guiding component. The first air guiding component is used to expand the cold air blown out of the first air outlet so that the airflow blown out by the heat exchange component can flow evenly to the first area.

[0010] Optionally, the heat exchange components of the two rack groups are staggered. The first air outlet of the heat exchange component is provided with a first air guide component, which is used to guide the cold air blown out of the first air outlet to the second air inlet of the corresponding rack.

[0011] Optionally, the first air inlet of the heat exchange component is located on the upper surface of the heat exchange component, the second air outlet of the cabinet is arranged in a horizontal direction, the top of the second area can be connected to the first air inlet of the heat exchange component in the adjacent cabinet group, and a guide fan is provided in the second area to blow hot air out of the second air outlet.

[0012] Optionally, the first airflow guiding component includes a plurality of first airflow guiding plates, which are arranged vertically and inclined to both sides with the central axis of the first air outlet as the center.

[0013] Optionally, the first flow guiding component further includes a plurality of second flow guiding plates, which are arranged in a horizontal direction, and two adjacent second flow guiding plates are inclined to each other to form a flow expansion structure.

[0014] Optionally, a second air outlet is provided at the second air outlet of the cabinet, and the second air outlet is used to evenly diffuse the hot air that has completed heat exchange in the cabinet to the second area.

[0015] Optionally, the heat exchange component is provided with a plurality of first fans at the first air inlet, and the first fans guide the hot air in the second area into the heat exchange component.

[0016] Optionally, the heat exchange assembly includes a heat exchanger, which is connected to a cold source device via a pipeline. An expansion valve is provided at the refrigerant inlet end of the heat exchanger, and a temperature sensor and a pressure sensor are sequentially provided on one side of the refrigerant outlet end of the heat exchanger along the refrigerant flow direction. The expansion valve, temperature sensor, and pressure sensor are respectively connected to a controller.

[0017] To achieve the above objectives, another aspect of the embodiments of this application provides a data center, including a heat exchange system.

[0018] The heat exchange system provided in this application embodiment has the function of uniformly guiding the cold air cooled by the heat exchange components to the first area, and keeping the heat exchange efficiency of multiple cabinets consistent. This avoids the situation where the cooling efficiency of some cabinets cannot meet the usage requirements during the process of the controller monitoring the heat exchange efficiency of the cabinets, which would lead to an increase in the power consumption of the heat exchange components and ultimately energy waste. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A top view of a heat exchange system provided in an embodiment of this application;

[0021] Figure 2 A top view of another heat exchange system provided in an embodiment of this application;

[0022] Figure 3 for Figure 1 A schematic diagram showing the connection between the heat exchange component and the first and second regions;

[0023] Figure 4 for Figure 1 Diagram showing the connection between the central cabinet and the first and second zones;

[0024] Figure 5 A schematic diagram of another second region provided in an embodiment of this application;

[0025] Figure 6 for Figure 5 Diagram showing the connection between the central cabinet and the first and second zones;

[0026] Figure 7 A schematic diagram of a heat exchange component provided in an embodiment of this application;

[0027] Figure 8 This is a schematic cross-sectional view of the heat exchange component provided in an embodiment of this application;

[0028] Figure 9 for Figure 8 Enlarged longitudinal cross-sectional view of the first flow guiding component;

[0029] Figure 10 for Figure 8 Enlarged cross-sectional view of the first flow guiding component.

[0030] Explanation of reference numerals in the attached figures:

[0031] 100. Heat exchange assembly; 101. Heat exchanger; 102. Expansion valve; 103. Temperature sensor; 104. Pressure sensor; 105. First fan;

[0032] 110. First airflow guide assembly; 111. First airflow guide plate; 112. Second airflow guide plate;

[0033] 200. Server rack; 201. Second airflow guide assembly;

[0034] 300, First Region;

[0035] 400, Second Zone; 401, Guide Fan. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.

[0037] Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0038] Figure 1 This is a top view of a heat exchange system provided in an embodiment of this application. (Reference) Figure 1 The computer room is equipped with multiple first areas 300 and second areas 400 arranged alternately in a preset direction, and each first area 300 and second area 400 is equipped with 200 sets of server racks at the interval between them. Figure 3 for Figure 1 A schematic diagram showing the connection between the heat exchange component 100 and the first region 300 and the second region 400; Figure 4 for Figure 1 A schematic diagram showing the connection between the central cabinet 200, the first area 300, and the second area 400. (Reference) Figure 1 , Figure 3 and Figure 4 The first area 300 and the second area 400 are respectively enclosed ventilation ducts; the rack 200 group includes multiple heat exchange components 100 and multiple racks 200. The first air inlet of the heat exchange component 100 is connected to the first area 300, the second air outlet of the rack 200 is connected to the first area 300, the first air outlet of the heat exchange component 100 is connected to the second area 400, and the second air inlet of the rack 200 is connected to the second area 400.

[0039] In related technologies, heat exchangers are typically installed at one end of the rack 200 group. This design results in a higher air temperature on the side of the cold aisle away from the heat exchanger after the heat exchange process is complete, compared to the side closer to the heat exchanger. This temperature difference negatively impacts the cooling efficiency of the rack 200, leading to inconsistent cooling performance. To address this inconsistency, control programs are usually used for adjustment. However, because the cooling efficiency of each rack 200 varies, the control program often increases the heat exchange to ensure sufficient cooling for each rack 200, resulting in energy waste.

[0040] To address this issue, an improvement can be implemented. Specifically, multiple heat exchange components 100 can be distributed on both sides of the first area 300. This significantly reduces the travel distance of the cold air exiting the outlets of the multiple heat exchange components 100. Furthermore, at least two heat exchange components 100 are installed in each group of racks 200 to ensure a more uniform distribution of cold air within the first area 300. This design ensures that the heat exchange efficiency of each rack 200 remains consistent, thus avoiding energy waste caused by inconsistent cooling efficiency. This improvement not only enhances cooling efficiency but also optimizes energy use, making the entire system more efficient and economical.

[0041] Continue to refer to Figure 1 In this embodiment, between two adjacent racks 200 groups, the heat exchange components 100 in each rack 200 group are designed to be arranged opposite each other. Specifically, each heat exchange component 100 may be equipped with a flow guiding component on its first air outlet. This allows the cool air blown from the oppositely arranged first air outlets to spread rapidly within the first area 300, thereby effectively ensuring that the temperature at different locations within the first area 300 remains in a relatively balanced state. In this way, the problem of large differences in cooling efficiency between multiple racks 200 can be significantly reduced, thereby improving the overall cooling effect and the stability of equipment operation.

[0042] Figure 2 A top view of another heat exchange system provided in an embodiment of this application. (Reference) Figure 2The first air outlets of multiple heat exchange components 100 connected to the same first area 300 are configured in a relative and staggered layout. This allows each heat exchange component 100 to independently correspond to at least one rack 200. In this manner, each heat exchange component 100 can provide targeted cooling to its directly corresponding rack 200. This design not only improves cooling efficiency but also significantly reduces the distance the cold air travels during its flow. Due to the shortened cold air flow distance, the chance of the cold air absorbing heat before reaching the rack 200 is greatly reduced, thus avoiding a decrease in cooling efficiency of the rack 200 due to increased cold air temperature. This approach ensures that each rack 200 receives efficient and directional cooling, thereby improving the overall system's cooling performance and energy efficiency ratio.

[0043] Furthermore, to ensure that the heat exchange component 100 can generate efficient heat dissipation for its corresponding cabinet 200 and to further optimize heat dissipation performance, multiple partitions (not shown in the figure) can be installed within the first area 300. These partitions further divide the first area 300 into multiple independent ventilation ducts. In this way, each heat exchange component 100 and its corresponding cabinet 200 can form a separate communication structure. This design effectively prevents turbulence between the cold air generated by multiple heat exchange components 100, thereby avoiding differences in cooling efficiency between cabinets 200 due to turbulence. With this layout, each cabinet 200 can achieve a uniform and efficient cooling effect, ensuring the stable operation of the entire system.

[0044] refer to Figure 3 and Figure 4 The first air inlet of the heat exchange component 100 can be located on the same side as the second air outlet of the cabinet 200, and multiple first fans 105 can be provided on the first air inlet of the heat exchange component 100. The first fans 105 guide the hot air in the second area 400 that has completed heat exchange with the cabinet 200 into the heat exchange component 100, so that the heat exchange component 100 can continuously cool the hot air in the second area 400 and guide it to the first area 300, forming a stable circulating cooling effect.

[0045] Figure 5 A schematic diagram of another second region 400 provided in an embodiment of this application; Figure 6 for Figure 5 A schematic diagram showing the connection between the central cabinet 200, the first area 300, and the second area 400. (Reference) Figure 5The first air inlet of the heat exchange component 100 can be located on the upper surface of the heat exchange component 100. The second air outlet of the cabinet 200 is laterally arranged in the horizontal direction and communicates with the second area 400. The top of the second area 400 can extend laterally with the adjacent heat exchange component 100 and form a communication structure with the first air inlet of the heat exchange component 100. In order to achieve rapid circulation of hot air in the second area 400, a guide fan 401 can be provided in the second area 400. The guide fan 401 guides the hot air blown out of the second air outlet of the cabinet 200 into the second area 400, thereby achieving rapid circulation of hot air in the second area 400.

[0046] The guide fan 401 includes multiple guide fans arranged in a horizontal direction, which divide the internal space of the second area 400 into an upper space and a lower space. The second air outlet of the cabinet 200 is located in the lower space, and the multiple fans can guide the hot air in the lower space to the first air inlet of the heat exchange component 100.

[0047] Furthermore, multiple first fans 105 are connected to the controller, which allows the controller to adjust the operating status of each first fan 105 according to the heat exchange efficiency of each heat exchange component 100. This ensures that the heat exchange efficiency of the heat exchange component 100 reaches the optimal state, avoiding energy waste or poor cooling effect.

[0048] Figure 8 This is a schematic cross-sectional view of the heat exchange component 100 provided in an embodiment of this application. Figure 9 for Figure 8 Enlarged longitudinal cross-sectional view of the first flow guiding component 110. Figure 10 for Figure 8 Enlarged cross-sectional view of the first flow guiding component 110. (Reference) Figure 8 , Figure 9 and Figure 10 The first flow guiding component 110 includes a plurality of first flow guiding plates 111 and a plurality of second flow guiding plates 112. The plurality of first flow guiding plates 111 are arranged in a horizontal direction, and the plurality of second flow guiding plates 112 are arranged in a vertical direction. Two adjacent first flow guiding plates 111 are inclined to each other to form a flow expansion structure.

[0049] A second airflow guide component 201 (not shown in the figure) is provided at the second air outlet of the cabinet 200. The second airflow guide component 201 is used to evenly diffuse the hot air that has completed heat exchange in the cabinet 200 into the second area 400.

[0050] The guide plate of the second flow guiding component 201 can adopt the same structure as either the first guide plate 111 or the second guide plate 112. The second flow guiding component 201 includes multiple guide plates arranged in the horizontal or longitudinal direction. When the guide plate of the second flow guiding component 201 extends in the horizontal direction, the two adjacent guide plates are inclined to each other to form a flow expansion structure, so that the hot air flowing into the second region 400 can flow evenly into the second region 400. When the guide plate of the second flow guiding component 201 extends in the vertical direction, the guide plates located on both sides of the central axis of the second air outlet are inclined in a direction away from the central axis, so as to ensure that the hot air blown out of the second air outlet can flow evenly into the second region 400. The above method can achieve a relatively balanced temperature in each area of ​​the second zone 400, and ensure that the heat exchange efficiency of each heat exchange component 100 remains the same. This further ensures that the cold air that has completed heat exchange through the heat exchange component 100 can flow evenly into the first zone 300, thereby achieving a balanced heat exchange efficiency for each of the 200 overall cabinets and achieving the best energy-saving effect.

[0051] Figure 7 This is a schematic diagram of the heat exchange assembly 100 provided in an embodiment of this application, with reference to... Figure 7 The heat exchange assembly 100 includes a heat exchanger 101, which is connected to a cold source device via a pipeline. An electronic expansion valve 102 is installed at the refrigerant inlet section of the heat exchanger 101. A temperature sensor 103 and a pressure sensor 104 are sequentially installed along the refrigerant flow direction on one side of the refrigerant outlet end of the heat exchanger 101. The expansion valve 102, temperature sensor 103, and pressure sensor 104 are respectively connected to a controller (not shown in the figure). To maximize the heat exchange efficiency of the heat exchange assembly 100 in this embodiment, the controller can determine the heat exchange efficiency of the heat exchanger 101 based on the monitoring signals transmitted by the temperature sensor 103 and pressure sensor 104, and adjust the opening and closing degree of the expansion valve 102 according to the monitoring signals, thereby ensuring that the heat exchange efficiency of the heat exchanger 101 is maximized, further achieving energy saving and emission reduction effects.

[0052] The terms "upper" and "lower" are used to describe the relative positions of the various structures in the accompanying drawings. They are only for clarity of description and are not intended to limit the scope of implementation of this application. Any changes or adjustments to the relative positions without substantially altering the technical content shall also be considered within the scope of implementation of this application.

[0053] It should be noted that, in this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0054] Furthermore, in this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0055] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A heat exchange system for cooling server racks (200) in a computer room, characterized in that, include: The computer room is provided with a plurality of first areas (300) and second areas (400) arranged alternately in a preset direction, and each set of server racks (200) is provided at the interval between the first area (300) and the second area (400); The first area (300) and the second area (400) are respectively enclosed ventilation ducts; The cabinet (200) group includes multiple heat exchange components (100) and multiple cabinets (200). The first air inlet of the heat exchange component (100) is connected to the first area (300), the second air outlet of the cabinet (200) is connected to the first area (300), the first air outlet of the heat exchange component (100) is connected to the second area (400), and the second air inlet of the cabinet (200) is connected to the second area (400).

2. The heat exchange system according to claim 1, characterized in that, In two adjacent cabinet (200) groups, heat exchange components (100) connected to the same first area (300) are arranged opposite to each other or staggered.

3. The heat exchange system according to claim 2, characterized in that, The heat exchange components (100) of the two cabinets (200) are arranged opposite to each other. The first air outlet of the heat exchange component (100) is provided with a first flow guide component (110). The first flow guide component (110) is used to expand the cold air blown out of the first air outlet so that the airflow blown out of the heat exchange component (100) can flow evenly into the first area (300).

4. The heat exchange system according to claim 2, characterized in that, The heat exchange components (100) of the two racks (200) are arranged alternately. The first air outlet of the heat exchange component (100) is provided with a first air guide component (110). The first air guide component (110) is used to guide the cold air blown out of the first air outlet to the second air inlet of the corresponding rack (200).

5. The heat exchange system according to claim 3 or 4, characterized in that, The first air inlet of the heat exchange component (100) is located on the upper surface of the heat exchange component (100), the second air outlet of the cabinet (200) is arranged in the horizontal direction, the top of the second area (400) can be connected to the first air inlet of the heat exchange component (100) in the adjacent cabinet (200) group, and a guide fan (401) is provided in the second area (400) for blowing hot air out of the second air outlet.

6. The heat exchange system according to claim 3 or 4, characterized in that, The first airflow guiding assembly (110) includes a plurality of first airflow guiding plates (111), which are arranged in a vertical direction and are inclined to both sides with the central axis of the first air outlet as the center.

7. The heat exchange system according to claim 6, characterized in that, The first flow guiding component (110) also includes a plurality of second flow guiding plates (112), which are arranged in a horizontal direction, and two adjacent second flow guiding plates (112) are inclined to each other to form a flow expansion structure.

8. The heat exchange system according to claim 3 or 4, characterized in that, A second air outlet is provided at the second air outlet of the cabinet (200), and the second air outlet assembly (201) is used to evenly diffuse the hot air that has completed heat exchange in the cabinet (200) into the second area (400).

9. The heat exchange system according to claim 1, characterized in that, The heat exchange assembly (100) is provided with a plurality of first fans (105) at the first air inlet, and the first fans (105) guide the hot air in the second region (400) into the heat exchange assembly (100).

10. The heat exchange system according to claim 1, characterized in that, The heat exchange assembly (100) includes a heat exchanger (101), which is connected to a cold source device via a pipeline. An expansion valve (102) is provided at the refrigerant inlet end of the heat exchanger (101). A temperature sensor (103) and a pressure sensor (104) are sequentially provided on one side of the refrigerant outlet end of the heat exchanger (101) along the refrigerant flow direction. The expansion valve (102), temperature sensor (103), and pressure sensor (104) are respectively connected to a controller.

11. A data center, characterized in that, Includes the heat exchange system according to any one of claims 1-10.

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