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] The embodiments of the present application relate to the technical field of heat exchange systems, and in particular to a heat exchange system and a data center. Background Art

[0002] In recent years, data center development has been moving toward higher power densities. In addition to chilled water units, large data centers sometimes rely on site constraints, making it impossible to use chilled water systems. Consequently, multiple near-end cooling terminals (CCUs) are required, which use refrigerants instead. These terminals primarily include room air conditioners, room air walls, row air conditioners, and backplane air conditioners. While room air conditioners and room air walls effectively address the need to separate infrastructure equipment (such as air conditioners and power supplies) from IT equipment (such as servers and network equipment), they do have the disadvantages of a larger footprint and higher energy consumption (due to the proximity of the fans to the heat exchanger, which interferes with the airflow and creates eddy current resistance).

[0003] The existing air conditioning system cannot ensure that the cold air can flow to the cabinets at a stable temperature during operation, resulting in uneven heat dissipation efficiency between cabinets. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a heat exchange system and a data center room, aiming to solve the problem of maintaining consistent cooling efficiency for multiple cabinets.

[0005] To achieve the above objectives, an embodiment of the present application provides a heat exchange system for cooling cabinets in a computer room, comprising: a plurality of first areas and second areas alternately arranged in a preset direction are provided in the computer room, and a cabinet group is provided at an interval between each of the first and second areas;

[0006] The first area and the second area are respectively closed ventilation ducts;

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

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

[0009] Optionally, the heat exchange components of the two cabinet groups are arranged relative to each other, and a first guide component is provided on the first air outlet of the heat exchange component. The first guide component is used to form an expansion flow of the cold air blown out of the first air outlet, so that the airflow blown out by the heat exchange component can flow evenly into the first area.

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

[0011] Optionally, the first air inlet of the heat exchange component is arranged on the upper end surface of the heat exchange component, and 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. A guide fan is provided in the second area, and the guide fan is used to blow out the hot air from the second air outlet.

[0012] Optionally, the first guide assembly includes a plurality of first guide plates, the plurality of first guide plates are arranged in a vertical direction, and the first guide plates are arranged tilted toward both sides along the central axis of the first air outlet.

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

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

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

[0016] Optionally, the heat exchange component includes a heat exchanger, which is connected to a cold source device through 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 provided in sequence along the refrigerant flow direction on one side of the refrigerant outlet end of the heat exchanger. The expansion valve, temperature sensor and pressure sensor are respectively connected to the controller.

[0017] To achieve the above-mentioned purpose, another aspect of an embodiment of the present application further provides a data room, including a heat exchange system.

[0018] The heat exchange system provided in the embodiment of the present application has the function of evenly directing the cold air cooled by the heat exchange component to the first area, and maintaining the same heat exchange efficiency among multiple cabinets, thereby avoiding the situation where the cooling efficiency of some cabinets cannot meet the usage requirements during the process of monitoring the heat exchange efficiency of the cabinets by the controller, resulting in an increase in the power usage of the heat exchange component and ultimately energy waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

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

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

[0022] Figure 3 for Figure 1 Schematic diagram of the connection between the middle heat exchange component and the first area and the second area;

[0023] Figure 4 for Figure 1 Schematic diagram of the connection between the middle cabinet and the first and second areas;

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

[0025] Figure 6 for Figure 5 A schematic diagram of the connection between the middle cabinet and the first and second areas;

[0026] Figure 7 A schematic diagram of a heat exchange assembly provided in an embodiment of the present application;

[0027] Figure 8 A schematic cross-sectional view of a heat exchange assembly provided in an embodiment of the present application;

[0028] Figure 9 for Figure 8 An enlarged schematic longitudinal section of the first flow guide assembly;

[0029] Figure 10 for Figure 8 Schematic diagram of an enlarged transverse section of the first guide component.

[0030] Description of reference numerals:

[0031] 100, heat exchange assembly; 101, heat exchanger; 102, expansion valve; 103, temperature sensor; 104, pressure sensor; 105, first fan;

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

[0033] 200, cabinet; 201, second flow guide assembly;

[0034] 300, first area;

[0035] 400. Second area; 401. Diversion fan. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0037] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0038] Figure 1 A top view of a heat exchange system provided in an embodiment of the present application. Figure 1 The computer room is provided with a plurality of first areas 300 and second areas 400 alternately arranged in a preset direction, and a cabinet 200 group is provided at the interval position between each first area 300 and second area 400. Figure 3 for Figure 1 Schematic diagram of the connection between the middle heat exchange component 100, the first area 300 and the second area 400; Figure 4 for Figure 1 Schematic diagram of the connection between the middle cabinet 200, the first area 300 and the second area 400. Figure 1 、 Figure 3 and Figure 4 The first area 300 and the second area 400 are respectively closed 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.

[0039] In the related art, a heat exchange device is usually installed at one end of the cabinet 200 group. This design will result in that after the heat exchange process is completed, when the cold air flows into the cold channel, the air temperature on the side of the cold channel away from the heat exchange device will be higher than the air temperature on the side close to the heat exchange device. This temperature difference will have a negative impact on the cooling efficiency of the cabinet 200, resulting in inconsistent cooling efficiency. In order to cope with this inconsistent cooling efficiency, a control program is usually used to perform adjustment and control. However, since the cooling efficiency of each cabinet 200 is different, the control program will often increase the heat exchange amount in order to ensure that each cabinet 200 can obtain sufficient cooling effect. This practice will lead to energy waste.

[0040] To address this issue, an improvement measure can be taken. Specifically, multiple heat exchange assemblies 100 can be distributed on both sides of the first area 300. In this way, the flow distance of the cold air flowing out of the air outlets of the multiple heat exchange assemblies 100 can be significantly reduced. In addition, at least two heat exchange assemblies 100 are provided in each group of cabinets 200, which can ensure that the cold air in the first area 300 is more evenly distributed. Through this design, the heat exchange efficiency of each cabinet 200 can be kept consistent as much as possible, thereby avoiding the problem of energy waste caused by inconsistent cooling efficiency. This improvement not only improves cooling efficiency, but also optimizes energy use, making the operation of the entire system more efficient and economical.

[0041] Continue to refer Figure 1 In this embodiment, the heat exchange assemblies 100 in each cabinet group 200 are designed to be positioned relative to each other between two adjacent cabinet groups 200. Specifically, a guide assembly may be provided on the first air outlet of each heat exchange assembly 100. This allows the cold air blown out from the opposing first air outlets to quickly diffuse within the first area 300, effectively ensuring that the temperatures at various locations within the first area 300 remain relatively balanced. In this way, the problem of large differences in cooling efficiency between multiple cabinets 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 the present application. Figure 2, the first air outlets of multiple heat exchange components 100 connected to the same first area 300 are configured in a relative and staggered layout. Each heat exchange component 100 can independently correspond to at least one cabinet 200. In this way, each heat exchange component 100 can perform targeted cooling on the cabinet 200 directly corresponding to it. Such a design not only improves the cooling efficiency, but also significantly reduces the distance that the cold air travels during the flow process. Due to the shortening of the cold air circulation distance, the chance of the cold air absorbing heat before reaching the cabinet 200 is greatly reduced, thereby avoiding the reduction in the cooling efficiency of the cabinet 200 due to the increase in the cold air temperature. This method ensures that each cabinet 200 can obtain efficient and targeted cooling effects, thereby improving the cooling performance and energy efficiency of the entire system.

[0043] Furthermore, in order to ensure that the heat exchange component 100 can produce an efficient heat dissipation effect for the corresponding cabinet 200 and further optimize the heat dissipation performance, a plurality of partitions (not shown in the figure) can be set in the first area 300. The function of these partitions is to further divide the first area 300 into a plurality of independent ventilation ducts. In this way, a separate connecting structure can be formed between each heat exchange component 100 and the corresponding cabinet 200. Such a design can effectively prevent turbulence between the cold air generated by multiple heat exchange components 100, thereby avoiding the difference in cooling efficiency between the cabinets 200 due to turbulence. Through this layout, each cabinet 200 can obtain 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 set on the same side of 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 completes 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 refrigeration effect.

[0045] Figure 5 A schematic diagram of another second region 400 provided in an embodiment of the present application; Figure 6 for Figure 5 Schematic diagram of the connection between the middle cabinet 200, the first area 300 and the second area 400. Figure 5The first air inlet of the heat exchange assembly 100 can be located on the upper end surface of the heat exchange assembly 100. The second air outlet of the cabinet 200 is arranged laterally along the horizontal direction and communicates with the second area 400. The top of the second area 400 can extend laterally from the adjacent heat exchange assembly 100 and form a communication structure with the first air inlet of the heat exchange assembly 100. To achieve rapid circulation of hot air within the second area 400, a guide fan 401 can be provided within 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 the hot air within the second area 400.

[0046] The guide fans 401 include multiple fans arranged horizontally, which divide the interior 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 assembly 100.

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

[0048] Figure 8 This is a cross-sectional diagram of a heat exchange assembly 100 provided in an embodiment of the present application. Figure 9 for Figure 8 The enlarged longitudinal cross-sectional view of the first flow guide assembly 110 is shown in FIG. Figure 10 for Figure 8 FIG. 1 is an enlarged schematic diagram of a transverse cross-section of the first flow guide assembly 110. Figure 8 、 Figure 9 and Figure 10 The first guide assembly 110 includes multiple first guide plates 111 and multiple second guide plates 112. The multiple first guide plates 111 are arranged in a horizontal direction, and the multiple second guide plates 112 are arranged in a vertical direction. The two adjacent first guide plates 111 are inclined to each other to form a flow expansion structure.

[0049] A second air guide component 201 (not shown in the figure) is provided at the second air outlet position of the cabinet 200 . The second air 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 guide component 201 can adopt the same structure as either the first guide plate 111 or the second guide plate 112. The second guide component 201 includes multiple guide plates arranged in the horizontal direction or the longitudinal direction. When the guide plate of the second guide component 201 is extended 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 area 400 can flow evenly into the second area 400; when the guide plate of the second guide component 201 is extended in the vertical direction, with the central axis of the second air outlet as the central axis, the guide plates on both sides of the central axis are respectively inclined in the direction away from the central axis to ensure that the hot air blown out of the second air outlet can flow evenly into the second area 400. Through the above method, the temperature in each area of ​​the second area 400 can be relatively balanced, so that the heat exchange efficiency of each heat exchange component 100 can also be maintained at the same state, further ensuring that the cold air that completes the heat exchange through the heat exchange component 100 can flow evenly into the first area 300, so that the heat exchange efficiency of each overall cabinet 200 group is kept balanced, achieving the best energy-saving effect.

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

[0052] Among them, the terms "upper" and "lower" are used to describe the relative position relationship of each structure in the accompanying drawings, which is only for the convenience of description and is not used to limit the scope of implementation of this application. Changes or adjustments to their relative relationships should also be regarded as the scope of implementation of this application without substantially changing the technical content.

[0053] It should be noted that, in this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "below," "below," and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0054] Furthermore, in this application, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," "fixed," and the like should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; they may refer to direct connection or indirect connection through an intermediate medium; they may refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0055] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present 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 any 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 the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A heat exchange system for cooling a cabinet (200) in a machine room, characterized in that: include: The machine room is provided with a plurality of first areas (300) and second areas (400) alternately arranged in sequence along a preset direction, and a cabinet (200) group is provided at an interval position between each first area (300) and second area (400); The first area (300) and the second area (400) are respectively closed ventilation ducts; The cabinet (200) group comprises a plurality of heat exchange components (100) and a plurality of cabinets (200), wherein 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, the 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 cabinet (200) groups are arranged opposite to each other, and a first air guide component (110) is provided on the first air outlet of the heat exchange component (100). The first air guide component (110) is used to form a diffused flow of 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 cabinet (200) groups are arranged in a staggered manner, and a first air guide component (110) is provided on the first air outlet of the heat exchange component (100), and 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 corresponding to the cabinet (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 arranged on the upper end surface of the heat exchange component (100), and the second air outlet of the cabinet (200) is arranged in a 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. A guide fan (401) is provided in the second area (400), and the guide fan (401) is used to blow hot air out of the second air outlet.

6. The heat exchange system according to claim 3 or 4, characterized in that: The first flow guide assembly (110) comprises a plurality of first flow guide plates (111), the plurality of first flow guide plates (111) being arranged in a vertical direction, and the first flow guide plates (111) being arranged tilted toward both sides along the central axis of the first air outlet.

7. The heat exchange system according to claim 6, characterized in that: The first flow guide assembly (110) further comprises a plurality of second flow guide plates (112), wherein the plurality of second flow guide plates (112) are arranged in a horizontal direction, and two adjacent second flow guide plates (112) are arranged to be inclined relative 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 guide component (201) is provided at the second air outlet position of the cabinet (200), and the second air 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).

9. The heat exchange system according to claim 1, characterized in that: A plurality of first fans (105) are provided at the first air inlet of the heat exchange component (100), and the first fans (105) guide the hot air in the second area (400) into the heat exchange component (100).

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

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

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