Heat exchanger and heat exchange equipment

Abstract

The utility model provides a heat exchanger and heat exchange equipment, relates to the technical field of heat exchange, and aims to solve the problem of low heat exchange efficiency of the heat exchanger. The heat exchanger comprises a first surface and a second surface which deviate from each other in the first direction. First ports of air ducts in the heat exchanger are located on the first surface, and second ports of the air ducts are located on the second surface; a pipe set in the heat exchanger is located between the first surface and the second surface, the pipe set comprises a plurality of straight pipes arranged in parallel, each straight pipe extends in the second direction, and the second direction is perpendicular to the first direction; the projection area of the pipe group in the first direction is greater than or equal to the projection area of the pipe group in the third direction; the third direction is perpendicular to the second direction and forms an included angle with the first direction. According to the heat exchanger provided by the utility model, more straight pipes can be arranged in the pipe group, and the heat exchange efficiency between the pipe group and the air flowing through the air duct is better, so that the heat exchange efficiency of the whole heat exchanger can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange, in particular to a heat exchanger and heat exchange equipment. Background Art

[0002] Data centers typically include a computer room and electronic equipment located within it, including communications equipment, storage devices, and power supplies. In practice, some electronic equipment generates significant heat during operation. To maintain a normal temperature range, heat exchangers are often required to dissipate the heat within the computer room.

[0003] A current heat exchanger consists of pipes and multiple fins stacked at intervals. Air ducts are formed between adjacent fins. The pipes contain channels for fluids such as water. The pipes pass through the fins, and as air flows through the ducts, it removes cold air from the fins and pipes, cooling the air. The cooled air is then discharged into the computer room, where it cools the electronic equipment within.

[0004] In current heat exchangers, the layout of pipelines is unreasonable, resulting in low heat exchange efficiency. Therefore, how to improve the heat exchange efficiency of heat exchangers has become a technical problem that needs to be solved urgently. Utility Model Content

[0005] The utility model provides a heat exchanger and heat exchange equipment with high heat exchange efficiency.

[0006] In a first aspect, the present invention provides a heat exchanger, comprising a first surface and a second surface, the first surface and the second surface being arranged in opposite directions along a first direction. The heat exchanger has an air duct, the air duct comprising a first port and a second port, the first port being located on the first surface and the second port being located on the second surface, i.e., the air duct extends through the first surface and the second surface. The heat exchanger also comprises a tube group, the tube group being located between the first surface and the second surface. The tube group comprises a plurality of straight tubes arranged in parallel, the ends of the plurality of straight tubes being connected in sequence, so that the fluid medium in the tube group can flow through each straight tube in the tube group in sequence. Each straight tube passes through the air duct and extends in a second direction, the second direction being perpendicular to the first direction. The projected area of ​​the tube group in the first direction is greater than or equal to the projected area of ​​the tube group in the third direction. The third direction is perpendicular to the second direction and forms an angle with the first direction.

[0007] In the heat exchanger provided by the present invention, when the external air enters the air duct from the first port (or the second port) and is discharged from the second port (or the first port), it can generate heat exchange with the fluid medium circulating in the straight tube, so that the heat exchanger can cool or heat the air. In addition, the projected area of ​​the tube group in the first direction is greater than or equal to the projected area of ​​the tube group in the third direction, so that more straight tubes can be arranged along the third direction, which helps to increase the number of straight tubes arranged in the tube group. Or it can be understood that along the first direction, the distance between the first surface and the second surface will form a significant restriction on the number of straight tubes arranged in the tube group. When the straight tubes in the tube group are arranged along the third direction that is at an angle to the first direction, the restriction on the number of straight tubes arranged by the distance between the first surface and the second surface can be effectively avoided, thereby facilitating an increase in the number of straight tubes arranged in the tube group, thereby increasing the heat exchange efficiency of the heat exchanger.

[0008] In one example, the extension direction of the air duct is parallel to the third direction to increase the flow path of the air duct, thereby increasing the heat exchange efficiency of the heat exchanger. Alternatively, it can be understood that when the extension direction of the air duct is parallel to the first direction, the length of the air duct is approximately the same as the distance between the first surface and the second surface. When the extension direction of the air duct is parallel to the third direction, it helps to increase the length of the air duct, thereby increasing the heat exchange efficiency of the heat exchanger. In addition, the air duct can also flow through all straight tubes in the tube group, which is conducive to achieving a countercurrent or quasi-countercurrent heat exchange method, thereby improving the heat exchange efficiency of the heat exchanger.

[0009] In one example, the tube group includes a plurality of straight tubes arranged along a fourth direction, which is perpendicular to both the first and second directions. In the fourth direction, at least one first straight tube and at least one second straight tube are located at both ends. The distance between at least one first straight tube and the first surface is greater than the distance between at least one first straight tube and the second surface, and the distance between at least one second straight tube and the first surface is less than the distance between at least one second straight tube and the second surface. It is understandable that the first straight tube and the second straight tube determine the projected area of ​​the entire tube group in the first direction. When setting up the tube group, the positions of the other straight tubes can be reasonably arranged based on the positions of the first and second straight tubes, so that the projected area of ​​the tube group in the first direction is greater than or equal to the projected area of ​​the tube group in the third direction, thereby improving the convenience of arranging the other straight tubes.

[0010] In one example, the tube bank includes multiple straight tube units arranged along a third direction, each straight tube unit includes multiple straight tubes, and within each straight tube unit, the multiple straight tubes are arranged along a fourth direction. Within each straight tube unit, the multiple straight tubes are sequentially connected along the fourth direction. The multiple straight tube units are sequentially connected along the third direction. This connection method can reduce temperature differences between different areas within the tube bank and facilitate countercurrent or quasi-countercurrent heat exchange, thereby improving the heat exchange performance of the heat exchanger.

[0011] In one example, the first port is an air outlet, and the second port is an air inlet. The tube assembly includes a liquid inlet and a liquid outlet, with multiple straight tubes sequentially connected between the liquid inlet and the liquid outlet. The liquid inlet is located at the end of the straight tube closest to the first surface, and the liquid outlet is located at the end of the straight tube closest to the second surface. This enables countercurrent or quasi-countercurrent heat exchange, which helps improve the heat exchange performance of the heat exchanger.

[0012] In one example, the heat exchanger further includes a plurality of fins. The fins are stacked along a fourth direction, which is perpendicular to both the first and second directions. The gaps between adjacent fins form an air duct. The fins increase the heat exchange area of ​​the heat exchanger, thereby improving the heat exchange performance. Furthermore, the air duct formed between adjacent fins improves air circulation efficiency and the heat exchange efficiency of the heat exchanger.

[0013] In one example, each fin has a plurality of through holes extending through the thickness thereof, and the straight tubes are passed through the through holes. After the straight tubes are passed through the through holes, a fixed connection between the fins and the straight tubes can be achieved, and good heat transfer efficiency can be achieved between the straight tubes and the fins.

[0014] In one example, along the first direction and the fourth direction, four adjacent through holes form a diamond shape, so as to reasonably restrict the layout position of the straight tube.

[0015] In one example, the heat exchanger includes multiple tube groups, which are arranged sequentially along a fourth direction. The fourth direction is perpendicular to both the first and second directions. The multiple tube groups can effectively improve the heat exchange performance of the heat exchanger.

[0016] In one example, the heat exchanger further includes a liquid inlet main pipe and a liquid outlet main pipe. The liquid inlet main pipe is connected to the liquid inlet of each tube group, and the liquid outlet main pipe is connected to the liquid outlet of each tube group to facilitate effective circulation of the fluid medium in each tube group.

[0017] In a second aspect, the present invention further provides a heat exchange device. The heat exchange device includes a fan and at least one of the aforementioned heat exchangers. The fan is located on the first surface or the second surface and is configured to generate an airflow through the air duct. Furthermore, the airflow is parallel to the third direction.

[0018] In the heat exchange device provided by the present invention, the heat exchange performance of the heat exchange device can be effectively improved by equipping it with the above-mentioned heat exchanger. In addition, the air flow direction can be effectively controlled by the fan to further improve the heat exchange performance of the heat exchange device.

[0019] In a specific configuration, the heat exchange device includes two heat exchangers, which are arranged at an angle. The fan is located at the open end between the two heat exchangers, allowing air to pass through the heat exchanger at an angle to the thickness of the heat exchanger, thereby improving the heat exchange efficiency of the heat exchange device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the three-dimensional structure of a heat exchanger provided in an embodiment of the present utility model;

[0021] Figure 2 for Figure 1 Schematic diagram of the plane structure from the perspective of the central X-axis direction;

[0022] Figure 3 for Figure 1 Schematic diagram of the plane structure from the perspective of the Y axis;

[0023] Figure 4 A schematic diagram of the three-dimensional structure of another heat exchanger provided in an embodiment of the present utility model;

[0024] Figure 5 for Figure 4 Schematic diagram of the plane structure from the perspective of the central X-axis direction;

[0025] Figure 6 for Figure 4 Schematic diagram of the plane structure from the perspective of the Y axis;

[0026] Figure 7 A schematic diagram of the planar structure of another heat exchanger provided in an embodiment of the present utility model;

[0027] Figure 8 A schematic diagram of the planar structure of another heat exchanger provided in an embodiment of the present utility model;

[0028] Figure 9 A schematic diagram of the planar structure of another heat exchanger provided in an embodiment of the present utility model;

[0029] Figure 10 A schematic diagram of the planar structure of another heat exchanger provided in an embodiment of the present utility model;

[0030] Figure 11 A schematic diagram of the planar structure of another heat exchanger provided in an embodiment of the present utility model;

[0031] Figure 12A schematic diagram of the planar structure of another heat exchanger provided in an embodiment of the present utility model;

[0032] Figure 13 A schematic diagram of the planar structure of another heat exchanger provided in an embodiment of the present utility model;

[0033] Figure 14 A schematic diagram of the planar structure of another heat exchanger provided in an embodiment of the present utility model;

[0034] Figure 15 A schematic diagram of the three-dimensional structure of another heat exchanger provided in an embodiment of the present utility model;

[0035] Figure 16 A schematic diagram of the three-dimensional structure of a heat exchange device provided in an embodiment of the present utility model;

[0036] Figure 17 A schematic diagram of a three-dimensional structure of a partial structure of a heat exchange device provided by an embodiment of the present utility model;

[0037] Figure 18 A three-dimensional structural schematic diagram of a partial structure of a heat exchange device provided in an embodiment of the present utility model. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in further detail below with reference to the accompanying drawings.

[0039] In order to facilitate understanding of the heat exchanger provided by the embodiment of the present invention, its application scenario is first introduced below.

[0040] The heat exchanger provided by the embodiment of the present invention can be used in fields such as data centers to dissipate heat from electronic equipment in the data center to ensure the normal operation of the data center.

[0041] For example, in a specific application, a data center may include a computer room and electronic equipment located within the room, such as communications equipment, storage devices, and power supply equipment. In actual applications, some electronic equipment generates a large amount of heat during operation. To keep these electronic devices within a normal temperature range, heat exchangers can be used to cool the electronic equipment or the air within the computer room.

[0042] like Figure 1 As shown, in an example provided by the present invention, a heat exchanger 10 includes a tube group 11 and a plurality of fins 12 .

[0043] Specifically, the plurality of fins 12 are arranged at intervals along the Y-axis direction. Each fin 12 is substantially in the shape of a rectangular plate, and the gap between two adjacent fins 12 forms an air duct 100 for air circulation.

[0044] In addition, it should be noted that Figure 1 In the example provided, only one tube group 11 is shown. In actual applications, more tube groups 11 may be arranged along the Z-axis. For ease of understanding, the following description will first use one tube group 11 as an example. Furthermore, this tube group 11 can also be considered a process. Specifically, this tube group 11 includes an inlet for the fluid medium to enter and an outlet for the fluid medium to exit.

[0045] like Figure 1 and Figure 2 As shown, the pipe group 11 includes a liquid inlet main pipe 011, a liquid outlet main pipe 012 and a plurality of straight pipes 111 arranged in parallel.

[0046] in, Figure 2 is the viewing angle in the Z-axis direction in 1, Figure 1 In the figure, the liquid inlet main pipe 011 and the liquid outlet main pipe 012 in the pipe group 11 are not shown.

[0047] Each straight tube 111 extends along the Y-axis and passes through each fin 12 in sequence. Each fin 12 has a plurality of through holes (not shown in the figure) that pass through the thickness of the fin 12, and the straight tube 111 passes through the fin 12 through the through holes. In addition, one end of each straight tube 111 (such as Figure 2 The right end of each straight pipe 111 is connected to the liquid inlet main pipe 011, and the other end of each straight pipe 111 (such as Figure 2 The left end of the fluid is connected to the outlet pipe 012. Figure 1 and Figure 2 The fluid medium (as indicated by the solid arrow in the middle) can enter the tube group 11 from the liquid inlet 0111 of the liquid inlet main pipe 011, and then be discharged from the liquid outlet 0121 of the liquid outlet main pipe 012 after passing through each straight pipe 111. That is, the fluid medium flows in each straight pipe 111 in a direction parallel to the Y axis.

[0048] When the temperature of the fluid medium flowing through the tube group 11 is low, the cooling capacity of the fluid medium can be transferred to the fins 12 through the tube wall of the straight tube 111. Figure 1 and Figure 2 When the air (shown by the dashed arrows) flows through the air duct 100, heat is exchanged with the fins 12 and the walls of the straight tubes 111, thereby reducing the air temperature. This results in a lower temperature when the air is discharged from the air duct 100. The cooled air is then transported to the computer room to cool the electronic equipment within.

[0049] It should be noted that, in actual applications, the heat exchanger 10 can also provide a heating effect. For example, the fluid medium flowing through the tube group 11 can also have a higher temperature. The lower-temperature air will be heated after flowing through the air duct 100, thereby achieving a heating effect.

[0050] To facilitate understanding of the present invention's technical solution, the following examples illustrate the cooling effect achieved by heat exchanger 10. Specifically, the fluid flowing through tube assembly 11 is relatively low in temperature, while the air entering duct 100 is relatively high in temperature. Therefore, the air cools down after passing through duct 100.

[0051] Please refer to Figure 1 and Figure 3 .in, Figure 3 for Figure 1 The viewing angle along the Y axis.

[0052] The multiple straight tubes 111 in the tube group 11 are typically arranged side by side in a rectangular array. That is, along the Y-axis, the projections of the multiple straight tubes 111 in the tube group 11 on the fins 12 are generally located within the rectangular outline. Therefore, when air flows along the thickness direction (i.e., the X-direction) of the heat exchanger 10, it can flow across the surface of each straight tube 111 in the tube group 11, thereby achieving a good cooling effect.

[0053] In actual applications, the thickness of the heat exchanger 10 (dimension along the X direction) is usually small, so it is difficult to arrange more straight tubes 111 along the thickness direction of the heat exchanger 10. In addition, the extension direction of the air duct 100 is consistent with the thickness direction of the heat exchanger 10. Therefore, the length of the air duct 100 or the air flow path will be relatively small, and the number of straight tubes 111 through which the air flows will also be relatively small, resulting in low heat exchange efficiency. For example, in Figure 1 and Figure 3 In the example provided in , the tube group 11 includes nine straight tubes 111. When air circulates along the X-axis, it can only flow through three rows of straight tubes 111 in sequence. Therefore, the heat exchange efficiency between the air and the straight tubes 111 is low.

[0054] To this end, an embodiment of the present invention provides a heat exchanger 10 with high heat exchange efficiency.

[0055] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0056] In addition, in order to facilitate the understanding of the technical solution of the present invention, a spatial coordinate system is introduced in some of the accompanying drawings in the following examples. The X-axis, Y-axis and Z-axis are all parallel to each other. The X-axis, S-axis and Z-axis are located in the same plane, and the S-axis is at an angle to the X-axis and the Z-axis. In some descriptions, the direction parallel to the X-axis can be considered as the first direction or the thickness direction of the heat exchanger. The direction parallel to the Y-axis can be considered as the second direction or the width direction of the heat exchanger. The direction parallel to the S-axis can be considered as the third direction. The direction parallel to the Z-axis can be considered as the fourth direction or the length direction of the heat exchanger. It should be understood that the vertical or parallel described in the present invention refers to approximately vertical or parallel, not vertical or parallel in a strict sense.

[0057] like Figure 4 As shown, in an example provided by the present invention, the heat exchanger 10 includes a plurality of fins 12 .

[0058] Specifically, the plurality of fins 12 are arranged at intervals along the Y-axis direction. Each fin 12 is substantially in the shape of a rectangular plate, and the gap between two adjacent fins 12 forms an air duct 100 for air circulation.

[0059] The shape and size of each fin 12 are substantially the same, and the edges of each fin 12 are substantially flush, so that the plurality of fins 12 together form a roughly rectangular block structure (such as Figure 4 ).

[0060] For example, along the X-axis, one side of each fin 12 is approximately located on the first surface A1, and the other side of each fin 12 is approximately located on the second surface A2. Alternatively, it can be understood that, from the perspective of the heat exchanger 10 as a whole, the first surface A1 and the second surface A2 are two surfaces of the heat exchanger 10 that are opposite to each other along the X-axis. Furthermore, along the Z-axis, one side of each fin 12 is approximately located on the third surface A3, and the other side of each fin 12 is approximately located on the fourth surface A4. Alternatively, it can be understood that, from the perspective of the heat exchanger 10 as a whole, the third surface A3 and the fourth surface A4 are two surfaces of the heat exchanger 10 that are opposite to each other along the Z-axis.

[0061] The air duct 100 formed between two adjacent fins 12 penetrates the first surface A1, the second surface A2, the third surface A3 and the fourth surface A4. Therefore, external air can enter the air duct 100 from any surface and be discharged from any other surface.

[0062] In actual application, the direction of air flow can be determined according to actual conditions. For example, when air enters the air duct 100 from the second surface A2 and is discharged from the first surface A1, it can be considered that the air duct 100 penetrates the first surface A1 and the second surface A2. In addition, the first port (such as the air outlet) of the air duct 100 is located on the first surface A1, and the second port (such as the air inlet) of the air duct 100 is located on the second surface A2. When the air flows through the air duct 100, it can flow along the X direction, or it can flow along the S axis direction that is at an angle to the X axis direction (such as the S axis direction). Figure 4 In specific applications, the direction of air flow can be adjusted by configuring devices such as fans.

[0063] Of course, in other examples, deflectors or other structural components may be provided on the third surface A3 and the fourth surface A4 to prevent air leakage from the third surface A3 and the fourth surface A4, thereby ensuring air circulation efficiency. Alternatively, a separate deflector may be provided between two adjacent fins 12 to reasonably constrain the shape of the air duct 100, thereby controlling the extension direction of the air duct 100 or the air circulation direction.

[0064] It should be noted that in Figure 4 In the examples provided in the specification, the first surface A1 and the second surface A2 are both approximately planes, and the first surface A1 and the second surface A2 are approximately parallel. In other examples, the first surface A1 and the second surface A2 may also be at an angle, that is, the first surface A1 and the second surface A2 may be opposite to each other along the X-axis direction. In addition, the first surface A1 and the second surface A2 may also be curved surfaces. For example, the edge of the fin 12 may be wavy, or the edges of the multiple fins 12 may not be in a flush positional relationship. Alternatively, the relative positions of two adjacent fins 12 may also be non-parallel, which will not be elaborated here.

[0065] In the example provided by the present invention, the extension direction of the air duct 100 or the flow direction of air in the air duct 100 is parallel to the S-axis direction, which is beneficial to improving the heat exchange efficiency of the heat exchanger 10.

[0066] Specifically, if Figure 1 As shown, when air flows in the air duct 100 along the X-axis direction, the air flow distance or the length of the air duct 100 is consistent with the thickness of the heat exchanger 10 .

[0067] like Figure 4 As shown, when the air flows in the air duct 100 along the S-axis direction, the air circulation distance or the length of the air duct 100 is greater than the thickness of the heat exchanger 10. Therefore, the heat exchange effect between the air and the heat exchanger 10 will be significantly improved, which is beneficial to improving the heat exchange performance of the heat exchanger 10.

[0068] Alternatively, it can be understood that the air temperature gradually decreases as it flows through the air duct 100. When the air flow direction forms an angle with the thickness direction of the heat exchanger 10, the length of the air duct 100 can be extended within the limited thickness dimension. This can further reduce the air temperature, which is conducive to improving the heat exchange effect when the air duct 100 flows.

[0069] like Figure 4 As shown, in the example provided by the present invention, the heat exchanger 10 further includes a tube group 11 .

[0070] Specifically, tube assembly 11 includes multiple parallel straight tubes, each extending along the Y-axis and sequentially passing through each fin 12. Each fin 12 has multiple through-holes (not shown) extending through its thickness. The straight tubes penetrate the fins 12 via the through-holes, providing a secure connection between the straight tubes and the fins 12.

[0071] It should be understood that the above examples illustrate the fins 12 as rectangular sheets. In other examples, the fins 12 may also be polygonal plate-like structures, such as parallelograms or triangles. Alternatively, the fins 12 may be circular, elliptical, or other irregularly shaped plate-like structures. The shape and position of the fins 12 can be appropriately configured according to actual needs, and this will not be elaborated upon here.

[0072] Furthermore, in practical applications, the heat exchanger 10 may not include the fins 12. Specifically, the heat exchanger 10 may include only the tube bank 11, and the space surrounding the tube bank 11 may be considered an open air duct. The primary function of the fins 12 is to provide thermal contact with the tube bank 11, thereby increasing the heat exchange area. Alternatively, the fins 12 may form an air duct for air circulation and have a certain restrictive effect on the direction of air flow.

[0073] In order to facilitate understanding of the technical solution of the present invention, in the following examples, a heat exchanger 10 including rectangular plate-shaped fins 12 will be taken as an example for illustrative description.

[0074] In practical applications, each tube assembly 11 can also be considered a process. Specifically, the tube assembly 11 includes an inlet for the fluid medium to enter and an outlet for the fluid medium to exit. The ends of the multiple straight tubes are sequentially connected, allowing fluids such as water or oil to enter the tube assembly through the inlet, flow through each straight tube in sequence, and exit through the outlet.

[0075] For example, in Figure 4In the example provided in, the tube group 11 includes twelve straight tubes. Specifically, straight tube 111a, straight tube 111b, straight tube 111c, straight tube 111d, straight tube 111e, straight tube 111f, straight tube 111g, straight tube 111h, straight tube 111i, straight tube 111j, straight tube 111k and straight tube 111m are connected in sequence. One end of straight tube 111a can be used as liquid inlet 1101, and one end of straight tube 111m can be used as liquid outlet 1102. It should be noted that the liquid inlet 1101 and the liquid outlet 1102 can be determined according to actual usage. In some cases, the liquid inlet 1101 can be used as the liquid outlet, and the liquid outlet 1102 can be used as the liquid inlet.

[0076] In practical applications, there are many ways to achieve sequential communication between multiple straight pipes.

[0077] As an example, Figure 4 and Figure 5 As shown. Straight pipes 111a and 111b are connected by connecting pipe 112a, and straight pipes 111b and 111c are connected by connecting pipe 112b. Connecting pipes 112a and 112b are both roughly U-shaped pipes. Connecting pipe 112a can be fixedly connected to straight pipes 111a and 111b by welding or other means, or connecting pipe 112a, straight pipe 111a, and straight pipe 111b can also be an integral structure.

[0078] It is understood that in actual applications, the connecting pipes 112a and 112b may also have other shapes and structures, or the connecting pipes 112a and 112b may also be hoses, etc. In other words, the connecting pipes can achieve the connection between two straight pipes, and the present invention does not limit the specific shape and type of the connecting pipes.

[0079] Of course, in Figure 5 Only the connection between the straight pipe 111a, the straight pipe 111b and the straight pipe 111c is shown. In actual application, the other straight pipes can also be similarly arranged according to the connection between the straight pipe 111a, the straight pipe 111b and the straight pipe 111c, which will not be described in detail here.

[0080] In the example provided by the present invention, the heat exchange performance of the heat exchanger 10 can be effectively improved by reasonably setting the position layout of the straight tubes in the tube group 11.

[0081] For example, see Figure 4 and Figure 6 ,in, Figure 6 for Figure 4 The viewing angle along the Y axis.

[0082] The multiple straight tubes in the tube group 11 are arranged in parallel along the S-axis direction, so that the projected area of ​​the tube group 11 in the X-axis direction is larger than the projected area of ​​the tube group 11 in the S-axis direction, thereby improving the heat exchange performance of the heat exchanger 10.

[0083] For example, assume that the diameter of each straight tube is R and the length of each straight tube is L. Along the S-axis, the distance between two adjacent straight tubes is L0. Along the Z-axis, the distance between two adjacent straight tubes is L0. Therefore, without considering the connecting tubes used to connect the straight tubes, the projected area of ​​the tube group 11 in the X-axis direction is L2*L. The projected area of ​​the tube group 11 in the S-axis direction is L1*L. Figure 6 It can be clearly seen that L1<L2, that is, the projection area of ​​the tube group 11 in the X-axis direction is larger than the projection area of ​​the tube group 11 in the S-axis direction.

[0084] In the example provided by the present invention, after the straight tubes in the tube group 11 are arranged along the S-axis direction, the heat exchange performance of the heat exchanger 10 can be improved in at least two aspects.

[0085] First, the number of straight tubes in the tube group 11 can be increased within the limited thickness of the heat exchanger 10 , thereby improving the heat exchange performance of the heat exchanger 10 .

[0086] Secondly, the heat exchange performance of the heat exchanger 10 can be improved in combination with the air flow direction.

[0087] Specifically, in the first aspect, Figure 3 and Figure 6 As shown. Assume that the diameter of each straight tube is R and the length of each straight tube is L. Along the Z axis, the distance between two adjacent straight tubes is L0. And, Figure 3 and Figure 6 In the embodiment, the dimensions of the heat exchanger 10 in the X-axis direction (ie, the thickness dimension) are all the same.

[0088] In addition, Figure 3 In the X-axis direction, the distance between two adjacent straight tubes is L0. Figure 6 In the figure, the distance between two adjacent straight tubes along the S axis is L0.

[0089] exist Figure 3 In the embodiment, the straight tubes in the tube group 11 are arranged at intervals along the X-axis direction. Therefore, only three rows of straight tubes can be arranged along the X-axis direction.

[0090] exist Figure 6 In the embodiment, the straight tubes in the tube group 11 are arranged at intervals along the S-axis direction. The size of the heat exchanger in the S-axis direction is larger than that in the X-axis direction. Therefore, four rows of straight tubes can be arranged along the S-axis direction.

[0091] Therefore, after the straight tubes in the tube group 11 are arranged along the S-axis direction, the number of straight tubes in the tube group 11 can be increased within the limited thickness of the heat exchanger 10, so as to increase the path for the fluid to flow in the tube group 11, thereby improving the heat exchange performance of the heat exchanger 10.

[0092] In the second aspect, please continue to see Figure 3 and Figure 6 .

[0093] exist Figure 3 In the example provided in the figure, the air flow direction is as follows Figure 3 As shown by the dotted arrow, the air flow direction is consistent with the X-axis direction, or the extension direction of the air duct 100 is parallel to the X-axis direction.

[0094] exist Figure 6 In the example provided in the figure, the air flow direction is as follows Figure 6 As shown by the dotted arrow, the air flow direction is consistent with the S-axis direction, or the extension direction of the air duct 100 is parallel to the S-axis direction.

[0095] By comparison Figure 3 and Figure 6 It can be clearly seen that Figure 6 The air flow path is significantly longer than Figure 3 Therefore, in Figure 6 In the example provided in , the air has a lower temperature after flowing through the heat exchanger 10. In addition, when the air circulates, it can also exchange heat with more straight tubes, thereby further reducing its temperature.

[0096] Or understandably, in Figure 3 In the example provided in , the projection area of ​​the tube group 11 in the X-axis direction is L21*L. The projection area of ​​the tube group 11 in the S-axis direction is L11*L. Figure 3 It can be clearly seen that L11>L21, that is, the projection area of ​​the tube group 11 in the X-axis direction is smaller than the projection area of ​​the tube group 11 in the S-axis direction.

[0097] exist Figure 6 In the example provided in , the projected area of ​​the tube group 11 in the S-axis direction is L1*L. The projected area of ​​the tube group 11 in the X-axis direction is L21*L. Figure 3 and Figure 6 It can be clearly seen that L1<L21.

[0098] Right now, Figure 6 The diameter of the air (or air duct) flowing through the tube group 11 is smaller than Figure 3 The diameter of the air (or air duct) flowing through the tube group 11. Figure 3 and Figure 6When the air volume flowing through the tube group 11 is the same, Figure 6 The air in the tube group 11 can have a higher flow rate when flowing through the tube group 11, and therefore has a higher heat exchange effect.

[0099] In summary, in the example provided by the present invention, by arranging the straight tubes in tube group 11 along the S-axis, a greater number of straight tubes can be arranged within a limited thickness dimension, effectively increasing the flow path of the fluid medium in tube group 11 and thus improving the heat exchange performance of heat exchanger 10. Furthermore, when the air flow direction is aligned with the S-axis, a longer flow path can be achieved. This also helps reduce the diameter of the air flowing through tube group 11, helping to increase the air flow rate, thereby effectively improving the heat exchange performance of heat exchanger 10.

[0100] It should be noted that, in specific applications, the angle between the S-axis and the X-axis can be any value between 0° and 90°. In specific applications, the specific angle between the S-axis and the X-axis can be reasonably set according to actual needs, which will not be elaborated here.

[0101] In addition, when the straight tubes in the tube group 11 are laid out, they may not be strictly laid out along the S-axis. In other words, when laying out the straight tubes, it is sufficient to ensure that the projected area of ​​the tube group 11 along the S-axis is minimized.

[0102] Alternatively, in some examples, the projected area of ​​the tube group 11 on the S axis may be substantially the same as the projected area of ​​the tube group 11 on the X axis, that is, the projected area of ​​the tube group 11 on the S axis is not greater than the projected area of ​​the tube group 11 on the X axis.

[0103] like Figure 4 and Figure 5 As shown, in the example provided by the present invention, the tube group 11 includes three rows of straight tubes arranged along the Z-axis. In other examples, the tube group 11 may also include one row, two rows, or more rows of straight tubes arranged along the Z-axis.

[0104] In order to facilitate understanding of the technical solution of the present invention, an example will be given below in which the tube group 11 includes three rows of straight tubes arranged along the Z-axis direction.

[0105] In the example provided by the present invention, the multiple straight tubes in tube group 11 are connected in sequence, so that tube group 11 has a liquid inlet 1101 and a liquid outlet 1102. Without considering the connecting tube used to connect two straight tubes, the flow distance of the fluid medium in the entire tube group is approximately equal to the sum of the lengths of all straight tubes. Therefore, the flow distance of the fluid medium in tube group 11 can be maximized, so that the heat exchanger 10 can achieve a good heat exchange effect.

[0106] Specifically, if Figure 6 As shown, Figure 6 The solid arrows in the figure show the approximate flow path of the fluid medium. After the fluid medium enters straight tube 111a from liquid inlet 1101, it flows sequentially through straight tubes 111b, 111c, and 111d, ultimately being discharged from liquid outlet 1102 at one end of straight tube 111m. During the flow process, the fluid medium continuously exchanges heat with the walls of the straight tubes. Therefore, the temperature of the fluid medium with a lower temperature gradually increases during the flow process. The fluid medium flows through each straight tube in sequence, thus enabling efficient utilization of the cooling capacity of the fluid medium.

[0107] In addition, in the example provided by the present invention, after multiple straight pipes are connected in sequence, a countercurrent or quasi-countercurrent heat exchange method can be realized, which has good heat exchange efficiency.

[0108] Please refer to Figure 3 and Figure 6 .

[0109] exist Figure 3 In the example provided in , the tube group 11 in the heat exchanger 10 adopts a cross-flow architecture.

[0110] For details, please refer to Figure 2 and Figure 3 . The fluid medium can enter the tube group 11 from the liquid inlet 0111 of the liquid inlet main pipe 011, and then be divided into nine paths, respectively flowing through nine straight pipes 111 and then converging into the liquid outlet main pipe 012, and finally discharged from the liquid outlet 0121 of the liquid outlet main pipe 012. That is, the flow distance of the fluid in the tube group 11 is basically the same as the length of a single straight pipe 111. Moreover, from the overall point of view, the flow direction of the fluid medium is basically perpendicular to the flow direction of the air, the heat exchange efficiency is low, and the temperature difference between different areas is large. For example, when the fluid medium flows from right to left in the straight pipe 111, the temperature will gradually increase. Therefore, the temperature of the air close to the right side drops to a greater extent after flowing through the air duct 100, while the temperature of the air close to the left side drops to a lesser extent after flowing through the air duct 100. Therefore, the temperature difference between the air in the left area and the air in the right area is large.

[0111] In addition, from Figure 3 From a central perspective, along the X-axis, the temperature of the air gradually decreases, while the temperature of the fluid remains essentially unchanged. Therefore, the efficiency of heat exchange between the air and the fluid decreases. Specifically, when the air first enters the air duct 100, its temperature is relatively high. Therefore, the temperature difference between the air and the fluid is relatively large, enabling a high level of heat exchange. As the air continues to circulate through the air duct 100 along the X-axis, the air temperature decreases. However, along the X-axis, the temperature of the fluid remains essentially unchanged. Therefore, the temperature difference between the air and the fluid gradually decreases, thereby reducing the efficiency of heat exchange between the air and the fluid.

[0112] exist Figure 6 In the example provided in , the tube group 11 in the heat exchanger 10 adopts a counter-flow or quasi-counter-flow architecture.

[0113] That is, overall, the direction of fluid flow is opposite to that of air flow. Alternatively, the direction of fluid temperature increase is opposite to that of air temperature decrease, resulting in a constant high temperature difference between air and fluid, and better heat exchange efficiency.

[0114] Specifically, the tube group 11 includes multiple ( Figure 6 There are four straight tube units arranged along the S axis, each straight tube unit includes multiple ( Figure 6 (shown in Figure 1), and in each straight tube unit, multiple straight tubes are arranged along the Z-axis. In each straight tube unit, multiple straight tubes are sequentially connected along the Z-axis. Multiple straight tube units are sequentially connected along the S-axis.

[0115] For example, straight tubes 111a, 111b, and 111c can be considered a straight tube unit; straight tubes 111d, 111e, and 111f can be considered a straight tube unit; straight tubes 111g, 111h, and 111i can be considered a straight tube unit; and straight tubes 111j, 111k, and 111m can be considered a straight tube unit. These four straight tube units are arranged sequentially along the S-axis, and within each straight tube unit, the straight tubes are sequentially connected along the Z-axis. Adjacent straight tube units are sequentially connected along the S-axis, creating a good counterflow effect between the air and the medium.

[0116] Specifically, after the fluid medium enters the straight tube 111a from the liquid inlet 1101, it flows through the straight tube 111b, the straight tube 111c and the straight tube 111d in sequence, and is finally discharged from the liquid outlet 1102 at one end of the straight tube 111m. The fluid medium continuously exchanges heat with the air during the circulation process, so the temperature will gradually increase. In other words, along the S-axis direction, the temperature of the fluid medium gradually increases. In addition, during the circulation process, the air continuously exchanges heat with the fluid medium, so the temperature will gradually decrease. In other words, during the entire circulation process of the air along the S-axis direction, a large temperature difference will always be maintained between the air and the fluid medium, which is conducive to improving the heat exchange efficiency between the air and the fluid medium. That is, the heat exchanger 10 has good heat exchange efficiency.

[0117] In specific configurations, the straight tubes in the tube group 11 can be arranged in various positions. In summary, when arranging the straight tubes, it is sufficient to ensure that the projected area of ​​the tube group 11 in the S-axis direction is less than or equal to the projected area of ​​the tube group 11 in the X-axis direction.

[0118] For example, Figure 6As shown, in one example provided by the present invention, a first straight tube 111a and a second straight tube 111j are located at both ends of the tube assembly 11 along the Z-axis. That is, along the Z-axis, the first straight tube 111a and the second straight tube 111j are located at both ends of the entire tube assembly 11. Therefore, the first straight tube 111a and the second straight tube 111j determine the projected area of ​​the entire tube assembly 11 along the X-axis, facilitating the proper positioning of the other straight tubes.

[0119] For example, when setting up other straight tubes, it is only necessary to ensure that the projection area of ​​the tube group 11 in the S-axis direction is less than or equal to the projection area of ​​the tube group 11 in the X-axis direction. Figure 6 In the example provided in FIG, the first straight tube 111 a is the rightmost straight tube in the tube group 11 , and the second straight tube 111 j is the leftmost straight tube in the tube group 11 .

[0120] Furthermore, in the specific configuration, the distance between the first straight tube 111a and the first surface A1 is greater than the distance between the first straight tube 111a and the second surface A2. The distance between the second straight tube 111j and the first surface A1 is smaller than the distance between the second straight tube 111j and the second surface A2. This minimizes the projected area of ​​the entire tube assembly 11 in the S-axis direction.

[0121] When the straight tubes in the tube group 11 are arranged, the relative positions of adjacent straight tubes can be varied.

[0122] For example, Figure 6 As shown, in one example provided by the present invention, straight tubes 111c, 111d, 111e, and 111h form a rhombus. That is, along the X-axis and the Z-axis, four adjacent straight tubes form a rhombus. Of course, in other examples, the four adjacent straight tubes can also form a parallelogram or other shapes, which will not be elaborated here.

[0123] In other embodiments, the rightmost end of the tube group 11 may also be two, three or more straight tubes. The leftmost end of the tube group 11 may also be two, three or more straight tubes.

[0124] For example, Figure 7 As shown, in one example provided by the present invention, straight tube 111a and straight tube 111f are both located at the rightmost end of tube group 11. Of course, this arrangement may increase the projected area of ​​tube group 11 in the S-axis direction; however, the projected area of ​​the entire tube group 11 in the S-axis direction is still smaller than the projected area of ​​tube group 11 in the X-axis direction.

[0125] It should be noted that, in a specific configuration, each fin 12 has a through-hole for the straight tube to pass through. Therefore, the positions of the through-holes in the fin 12 can be arranged in accordance with the positional layout of the straight tubes in the tube assembly 11. For example, in the fin 12, four adjacent through-holes along the X-axis and the Z-axis can form a diamond shape, etc., which will not be further described here.

[0126] In the above example, the heat exchanger 10 includes one tube group 11. In other examples, the heat exchanger 10 may include two, three, or more tube groups 11. The multiple tube groups 11 may be arranged sequentially along the Z-axis. Furthermore, the positional layout and connection of the multiple straight tubes in each tube group 11 may also vary.

[0127] The following will take the heat exchanger 10 including two tube groups as an example to exemplify the position layout and connection of the straight tubes in the tube group.

[0128] like Figures 8 to 10 As shown, the heat exchanger 10 includes two tube groups, namely tube group 11a and tube group 11b, each of which includes eighteen straight tubes 111. Figures 8 to 10 In the figure, the solid arrows indicate the approximate flow direction of the fluid medium, and the dotted arrows indicate the approximate flow direction of the air.

[0129] exist Figures 8 to 10 In the embodiment, the positions and layouts of the straight tubes 111 in the tube group 11a and the tube group 11b are substantially the same. For example, the tube group 11a and the tube group 11b are both located within a substantially parallelogram outline, and the projections of the tube group 11a and the tube group 11b in the S-axis direction do not overlap.

[0130] exist Figures 8 to 10 In the embodiment, the positions of the liquid inlet and the liquid outlet are different, and the connection conditions between the straight pipes or the flow paths of the fluid are different.

[0131] Specifically, in Figure 8 In the embodiment, the liquid inlet 1101a and the liquid outlet 1102a of the tube group 11a are both located on the side close to the tube group 11b. The liquid inlet 1101b and the liquid outlet 1102b of the tube group 11b are both located on the side away from the tube group 11a.

[0132] exist Figure 9 In the embodiment, the liquid inlet 1101a and the liquid outlet 1102a of the tube group 11a are both located on the side away from the tube group 11b. The liquid inlet 1101b and the liquid outlet 1102b of the tube group 11b are both located on the side close to the tube group 11a.

[0133] exist Figure 10In the embodiment, the liquid inlet 1101a and the liquid outlet 1102a of the tube group 11a are both located on the side away from the tube group 11b. The liquid inlet 1101b and the liquid outlet 1102b of the tube group 11b are both located on the side away from the tube group 11a.

[0134] In summary, in Figures 8 to 10 In the example provided, the projections of tube group 11a and tube group 11b along the S-axis do not overlap. Therefore, when air circulates along the S-axis, the airflow through tube group 11a and the airflow through tube group 11b barely intersect. This means that tube groups 11a and 11b are relatively independent of each other. The positions of the liquid inlet and outlet can be flexibly adjusted during specific configurations and are not detailed here.

[0135] In addition, Figures 11 to 14 , the projections of the tube group 11a and the tube group 11b in the S-axis direction overlap.

[0136] Specifically, in Figure 11 The positions and layouts of the straight tubes 111 in tube group 11a and tube group 11b are substantially the same. The liquid inlet 1101a and liquid outlet 1102a of tube group 11a are both located near the side of tube group 11b. The liquid inlet 1101b and liquid outlet 1102b of tube group 11b are both located near the side of tube group 11a.

[0137] exist Figure 12 The positions and layouts of the straight tubes 111 in tube group 11a and tube group 11b are different. Furthermore, the liquid inlet 1101a and liquid outlet 1102a of tube group 11a are both located near the side of tube group 11b. The liquid inlet 1101b and liquid outlet 1102b of tube group 11b are both located near the side of tube group 11a.

[0138] exist Figure 13 The positions and layouts of the straight tubes 111 in tube group 11a and tube group 11b are different. Furthermore, the liquid inlet 1101a and liquid outlet 1102a of tube group 11a are both located near the side of tube group 11b. The liquid inlet 1101b and liquid outlet 1102b of tube group 11b are both located near the side of tube group 11a.

[0139] exist Figure 14 The positions and layouts of the straight tubes 111 in tube group 11a and tube group 11b are different. Furthermore, the liquid inlet 1101a and liquid outlet 1102a of tube group 11a are both located near the side of tube group 11b. The liquid inlet 1101b and liquid outlet 1102b of tube group 11b are both located near the side of tube group 11a.

[0140] In summary, in Figures 8 to 14In the example provided, the projections of tube group 11a and tube group 11b along the S-axis overlap. Therefore, when air circulates along the S-axis, the airflow through tube group 11a and the airflow through tube group 11b can intersect with each other, facilitating effective coordination between tube groups 11a and 11b, thereby achieving a more diverse heat exchange design. In specific configurations, the positions of the liquid inlet and outlet can be flexibly set, which will not be detailed here.

[0141] It will be appreciated that the above examples illustrate the layout of the straight tubes 111 in the heat exchanger 10 using several possible implementations. In specific configurations, the number of tube groups 11 included in the heat exchanger 10, and the number and layout of the straight tubes 111 in each tube group 11, can be flexibly configured based on actual needs and are not further described herein.

[0142] For example, Figure 15 As shown, the heat exchanger 10 may include ten tube groups 11, and the ten tube groups 11 are arranged in sequence along the Z-axis direction.

[0143] In actual application, the heat exchanger 10 can be used independently in scenarios where heat exchange is required, such as data centers, or can be integrated with other devices.

[0144] For example, Figure 16 As shown, the present invention further provides a heat exchange device 20 , which includes two of the above-mentioned heat exchangers 10 .

[0145] Specifically, if Figures 16 to 18 As shown, the heat exchange device 20 further includes a fan 21 and a bracket 22. The two heat exchangers 10 are fixedly connected to the bracket 22, and are arranged at an angle therebetween, so that the two heat exchangers 10 form a herringbone or V shape.

[0146] The fans 21 are located at the open ends of the two heat exchangers 10, while the closed ends of the two heat exchangers 10 are covered by sealing plates 24. The sides between the two heat exchangers 10 are covered by sealing plates 23. Furthermore, sealing plates (not shown) can be placed around the brackets 22 to allow air to enter the heat exchange device 20 from the top and exit from the bottom.

[0147] Figure 16 The dashed arrows in the middle indicate the general direction of air flow. When the fan 21 is running, external air can enter the heat exchange device 20 from the top, flow into the air ducts of the two heat exchangers 10 from the second surface A2, and be discharged from the first surface A1, finally flowing through the fan 21 and being discharged externally.

[0148] That is, air can pass through the heat exchanger 10 in a direction oblique to the thickness of the heat exchanger 10, thereby helping to improve the heat exchange efficiency of the heat exchange device 20. When the air flows through the heat exchanger 10, the air flow direction is consistent with the above-mentioned S-axis direction, which will not be described in detail here.

[0149] In addition, if Figure 18 As shown, the heat exchange device 20 further includes a liquid inlet main pipe 25 and a liquid outlet main pipe 26. The liquid inlet main pipe 25 is connected to the liquid inlet of each tube group in the two heat exchange plates 10, and the liquid outlet main pipe is connected to the liquid outlet of each tube group in the two heat exchange plates 10.

[0150] exist Figure 16 In the example provided in , the heat exchange device 20 includes two heat exchange plates 10 as an example for exemplary description. In other examples, the heat exchange device 20 may also include three or more heat exchange plates 10, which will not be described in detail here.

[0151] In addition, the heat exchange device 20 can be configured in various different types of scenarios requiring cooling during specific applications.

[0152] For example, the heat exchange device 20 can be applied to a data center to dissipate heat from electronic equipment in the data center. It is understood that in specific applications, the application scenario of the cooling system is not limited by the present invention.

[0153] In the various embodiments of the present invention, unless otherwise specified or provided for, the terms and / or descriptions of the different embodiments are consistent and may be referenced to each other. The technical features of the different embodiments may be combined to form new embodiments based on their inherent logical relationships.

[0154] In this utility model, "plurality" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. A and B can be singular or plural.

[0155] It should be understood that the various numbers used in the embodiments of the present invention are merely for ease of description and are not intended to limit the scope of the embodiments of the present invention. The order of the sequence numbers of the above-mentioned processes does not necessarily imply a specific order of execution; the order of execution of the processes should be determined by their functions and internal logic.

Claims

1. A heat exchanger, characterized in that: The invention comprises a first surface and a second surface, wherein the first surface and the second surface are arranged to be opposite to each other along a first direction; An air duct comprising a first port and a second port, wherein the first port is located on the first surface and the second port is located on the second surface; a tube group located between the first surface and the second surface; The tube group includes a plurality of straight tubes arranged in parallel, and the ends of the plurality of straight tubes are connected in sequence; Each of the straight pipes passes through the air duct and extends along a second direction, which is perpendicular to the first direction; The projected area of ​​the tube group in the first direction is greater than or equal to the projected area of ​​the tube group in the third direction; The third direction is perpendicular to the second direction and forms an angle with the first direction.

2. The heat exchanger according to claim 1, characterized in that An extending direction of the air duct is parallel to the third direction.

3. The heat exchanger according to claim 1 or 2, characterized in that: The tube group includes a plurality of straight tubes arranged along a fourth direction, wherein the fourth direction is perpendicular to both the first direction and the second direction; In the fourth direction, it includes at least one first straight tube and at least one second straight tube located at both ends; wherein the distance between the at least one first straight tube and the first surface is greater than the distance between the at least one first straight tube and the second surface; The distance between the at least one second straight tube and the first surface is smaller than the distance between the at least one second straight tube and the second surface.

4. The heat exchanger according to any one of claims 1 to 3, characterized in that The tube group includes a plurality of straight tube units arranged along the third direction, each of the straight tube units includes a plurality of the straight tubes, and in each of the straight tube units, the plurality of straight tubes are arranged along the fourth direction; Wherein, in each of the straight pipe units, a plurality of the straight pipes are connected in sequence along the fourth direction; The plurality of straight pipe units are connected in sequence along the third direction.

5. The heat exchanger according to any one of claims 1 to 4, characterized in that The first port is an air outlet, and the second port is an air inlet; The tube group includes a liquid inlet and a liquid outlet, and the plurality of straight tubes are sequentially connected between the liquid inlet and the liquid outlet; The liquid inlet is located at one end of the straight tube close to the first surface, and the liquid outlet is located at one end of the straight tube close to the second surface.

6. The heat exchanger according to any one of claims 1 to 5, characterized in that The heat exchanger further includes a plurality of fins; The plurality of fins are stacked along a fourth direction, and the fourth direction is perpendicular to both the first direction and the second direction; The gap between two adjacent fins forms the air duct.

7. The heat exchanger according to claim 6, characterized in that Each of the fins has a plurality of through holes extending through the thickness of the fin, and the straight tubes are passed through the through holes.

8. The heat exchanger according to claim 7, characterized in that Along the first direction and the fourth direction, four adjacent through holes form a rhombus.

9. The heat exchanger according to any one of claims 1 to 8, characterized in that The heat exchanger includes a plurality of tube groups, and the plurality of tube groups are arranged in sequence along the fourth direction; The fourth direction is perpendicular to both the first direction and the second direction.

10. The heat exchanger according to claim 9, characterized in that The heat exchanger further comprises a liquid inlet main pipe and a liquid outlet main pipe; The liquid inlet main pipeline is connected to the liquid inlet of each tube group, and the liquid outlet main pipeline is connected to the liquid outlet of each tube group.

11. A heat exchange device, characterized in that: comprising a fan and at least one heat exchanger according to any one of claims 1 to 10; The fan is located on the first surface or the second surface, and is used to generate an airflow flowing through the air duct; Furthermore, the flow direction of the airflow is parallel to the third direction.

12. The heat exchange equipment according to claim 11, characterized in that: The heat exchange device comprises two heat exchangers, and the two heat exchangers are arranged at an angle; The fan is located at the open end between the two heat exchangers.

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