Heat Exchanger

Abstract

The present disclosure provides a heat exchanger, which includes a first pipe and a second pipe; the first pipe includes a plurality of first curved segments connected end to end, the plurality of first curved segments are arranged along a first direction, and the connecting line between the two ends of each first curved segment extends along the first direction; the second curved segment has the same shape as the first curved segment, the plurality of second curved segments are arranged along the first direction, and the plurality of second curved segments are arranged one-to-one with the plurality of first curved segments; in the second direction, the second curved segment is located on the first side of the corresponding first curved segment, and the second direction is perpendicular to the first direction. The heat exchange medium in the second pipe is different from that in the first pipe. The heat exchanger provided by the present disclosure can realize multi-fluid heat exchange.

Description

Technical Field

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

[0002] Heat exchanger is a device that transfers part of the heat of hot fluid to cold fluid, also known as heat exchanger. Heat exchanger plays an important role in chemical, petroleum, power, food and many other industrial production. In chemical production, heat exchanger can be used as heater, cooler, condenser, evaporator and reboiler, etc.

[0003] In the related art, a heat exchanger generally includes a heat exchange pipe, which has an inlet and an outlet. The heat exchange medium enters through the inlet of the heat exchange pipe, and then flows out from the outlet after circulating in the heat exchange pipe to achieve heat exchange with the outside air. In order to improve the heat exchange efficiency of the heat exchange pipe, the heat exchange pipe is generally set to a microchannel structure, that is, the channel equivalent diameter is 10-1000μm. At the same time, in order to save space and cost, the heat exchange pipe is arranged in a serpentine shape, that is, the heat exchange pipe is winding.

[0004] However, in the above structure, since the heat exchange medium in the heat exchange pipe can only achieve two-phase heat exchange with a fluid such as air in a one-in-one-out form, the heat exchange efficiency is still low. Utility Model Content

[0005] The embodiment of the present disclosure provides a heat exchanger that can improve heat exchange efficiency. The technical solution is as follows:

[0006] An embodiment of the present disclosure provides a heat exchanger, which includes a first pipe and a second pipe; the first pipe includes a plurality of first curved segments connected end to end, the plurality of first curved segments are arranged along a first direction, and a connecting line between two ends of each first curved segment extends along the first direction; the second curved segment has the same shape as the first curved segment, the plurality of second curved segments are arranged along the first direction, and the plurality of second curved segments are arranged one-to-one with the plurality of first curved segments; in the second direction, the second curved segment is located on a first side of the corresponding first curved segment, the second direction is perpendicular to the first direction, and the heat exchange medium in the second pipe is different from that in the first pipe.

[0007] In another implementation of the present disclosure, the first curved section includes a first straight pipe section, a first connecting section, a second straight pipe section and a second connecting section connected in sequence, and the first straight pipe section and the second straight pipe section are parallel to each other and are located on the same side of the first connecting section, and the first connecting section and the second connecting section are located on opposite sides of the second straight pipe section; the extension direction of the first straight pipe section and the extension direction of the second straight pipe section are both the second direction.

[0008] In another implementation of the present disclosure, the first connecting segment and the second connecting segment are both U-shaped curved connectors, and the opening direction of the first connecting segment is opposite to the opening direction of the second connecting segment, and the opening direction of the first connecting segment and the opening direction of the second connecting segment are both perpendicular to the first direction.

[0009] In yet another implementation of the present disclosure, the opening size of the first connecting segment is larger than the opening size of the second connecting segment.

[0010] In another implementation of the present disclosure, the second curved section includes a third straight pipe section, a third connecting section, a fourth straight pipe section and a fourth connecting section connected in sequence, and the third straight pipe section and the fourth straight pipe section are both located on the same side of the third connecting section, and the extension direction of the third straight pipe section and the extension direction of the fourth straight pipe section are both the second direction; the third straight pipe section, the third connecting section and the fourth straight pipe section are all located in the space defined by the first straight pipe section, the first connecting section and the second straight pipe section.

[0011] In another implementation of the present disclosure, the third connecting segment and the fourth connecting segment are both U-shaped curved connectors, and the opening direction of the third connecting segment is the same as the opening direction of the first connecting segment, and the opening direction of the fourth connecting segment is the same as the opening direction of the second connecting segment; the third connecting segment is located in the opening of the corresponding first connecting segment, and the second connecting segment is located in the opening of the corresponding fourth connecting segment.

[0012] In another implementation of the present disclosure, the heat exchanger further includes a third pipe, and the third pipe is located on the same side of the second pipe and the first pipe; the heat exchange media in the third pipe, the second pipe and the first pipe are all different.

[0013] In another implementation of the present disclosure, the third pipe includes a plurality of third curved segments connected end to end, the plurality of third curved segments are arranged along the first direction, and the plurality of third curved segments are arranged one-to-one with the plurality of second curved segments, and in the second direction, the third curved segments and the first curved segments are respectively located on opposite sides of the corresponding second curved segments; the third curved segments have the same shape as the second curved segments.

[0014] In yet another implementation of the present disclosure, the first pipe, the second pipe, and the plurality of third pipes are all aluminum pipes or copper pipes.

[0015] In another implementation of the present disclosure, the heat exchanger further includes a plurality of liquid outlet pipes, a plurality of liquid inlet joints, and a plurality of liquid outlet joints, one end of the plurality of liquid outlet pipes being respectively connected to one end of the first pipe, one end of the second pipe, and one end of the third pipe; the plurality of liquid inlet joints being respectively connected to the other end of the first pipe, the other end of the second pipe, and the other end of the third pipe; the plurality of liquid outlet joints respectively correspond one-to-one to the plurality of liquid outlet pipes, and the liquid outlet joints are connected to the other end of the corresponding liquid outlet pipes.

[0016] The technical solution provided by the embodiments of the present disclosure has the following beneficial effects:

[0017] When the heat exchanger provided by the embodiment of the present disclosure is in use, since the heat exchanger includes a first pipe, and the first pipe includes a plurality of first curved sections connected end to end, and the plurality of first curved sections are arranged along a first direction, and the two ends of each of the first curved sections are respectively located on the same side of the first direction, the first pipe can form a serpentine structure through the winding of the plurality of first curved sections, so that the heat exchange area of ​​the heat exchange medium in the first pipe can be increased through the winding structure, thereby improving the heat exchange efficiency.

[0018] Similarly, since the heat exchanger also includes a second pipe, and the second pipe also includes a plurality of second curved segments connected end to end, the plurality of second curved segments are arranged along the first direction, and the plurality of second curved segments are arranged one-to-one with the plurality of first curved segments. In the second direction, the second curved segment is located on one side of the corresponding first curved segment. In this way, a serpentine structure can also be formed by the winding of the plurality of second curved segments, so that the heat exchange area of ​​the heat exchange medium in the second pipe can be increased by the winding structure, thereby improving the heat exchange efficiency.

[0019] Furthermore, since the heat exchange medium in the second pipe is different from that in the first pipe, the heat exchanger can form three-phase heat exchange with fluids such as air by filling the first pipe and the second pipe with different heat exchange media, thereby greatly improving the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 A schematic structural diagram of a heat exchanger provided in an embodiment of the present disclosure.

[0022] Figure 2 A schematic diagram of the structure of a pipeline of a heat exchanger provided in an embodiment of the present disclosure;

[0023] Figure 3 A schematic diagram of the structure of a first pipeline provided in an embodiment of the present disclosure;

[0024] Figure 4 A schematic diagram of the structure of a second pipeline provided in an embodiment of the present disclosure;

[0025] Figure 5 A schematic diagram of a pipeline structure of another heat exchanger provided in an embodiment of the present disclosure;

[0026] Figure 6 A schematic diagram of the structure of a third pipeline provided in an embodiment of the present disclosure.

[0027] The symbols in the figure mean the following:

[0028] 1. first pipeline; 10. first curved section; 101. first straight pipe section; 102. first connecting section; 103. second straight pipe section; 104. second connecting section;

[0029] 2. Second pipeline; 20. Second curved section; 201. Third straight pipe section; 202. Third connecting section; 203. Fourth straight pipe section; 204. Fourth connecting section;

[0030] 3. Third pipeline; 30. Third curved section; 301. Fifth straight pipe section; 302. Fifth connecting section; 303. Sixth straight pipe section; 304. Sixth connecting section; 4. Liquid outlet pipe; 5. Liquid inlet joint; 6. Liquid outlet joint;

[0031] 200. Fin assembly. DETAILED DESCRIPTION

[0032] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0033] The present disclosure provides a heat exchanger, such as Figure 1 As shown, the heat exchanger includes a first pipe 1 , a second pipe 2 , and a fin assembly 200 , and the fin assembly 200 is connected to the outer walls of the first pipe 1 and the second pipe 2 .

[0034] Figure 2 A schematic diagram of the structure of a pipe of a heat exchanger provided in an embodiment of the present disclosure, combined with Figure 2The first pipeline 1 includes a plurality of first curved segments 10 connected end to end, the plurality of first curved segments 10 are arranged along the first direction, and the connecting line between the two ends of each first curved segment 10 extends along the first direction. The second curved segments 20 have the same shape as the first curved segments 10, the plurality of second curved segments 20 are arranged along the first direction, and the plurality of second curved segments 20 are arranged one-to-one with the plurality of first curved segments 10. In the second direction, the second curved segments 20 are located on the first side of the corresponding first curved segments 10, and the second direction is perpendicular to the first direction. The heat exchange medium in the second pipeline 2 is different from that in the first pipeline 1.

[0035] When using the heat exchanger provided by the embodiment of the present disclosure, since the heat exchanger includes a first pipe 1, and the first pipe 1 includes a plurality of first curved sections 10 connected end to end, and the plurality of first curved sections 10 are arranged along a first direction, and the two ends of each first curved section 10 are respectively located on the same side of the first direction, the first pipe 1 can be formed into a serpentine structure through the winding of the plurality of first curved sections 10, so as to increase the heat exchange area of ​​the heat exchange medium in the first pipe 1 through the winding structure, thereby improving the heat exchange efficiency.

[0036] Similarly, since the heat exchanger also includes a second pipe 2, and the second pipe 2 also includes a plurality of second curved sections 20 connected end to end, the plurality of second curved sections 20 are arranged along the first direction, and the plurality of second curved sections 20 are arranged one-to-one with the plurality of first curved sections 10. In the second direction, the second curved sections 20 are located on one side of the corresponding first curved sections 10. In this way, a serpentine structure can also be formed by the winding of the plurality of second curved sections 20, so that the heat exchange area of ​​the heat exchange medium in the second pipe 2 can be increased by the winding structure, thereby improving the heat exchange efficiency.

[0037] Furthermore, since the heat exchange medium in the second pipe 2 is different from that in the first pipe 1, the heat exchanger can form three-phase heat exchange with fluids such as air by filling the first pipe 1 and the second pipe 2 with different heat exchange media, thereby greatly improving the heat exchange efficiency.

[0038] The first direction mentioned above can be found in Figure 2 The direction a in the second direction is Figure 2 The first curved section 10 and the second curved section 20 mentioned above have the same shape, which means that the contours formed by the two curved sections are the same. For example, if the first curved section 10 is U-shaped, then the second curved section 20 is also U-shaped, but the sizes and bending angles of the two may be different.

[0039] Figure 3 A schematic diagram of the structure of a first pipeline provided in an embodiment of the present disclosure is shown in FIG. Figure 3Optionally, the first curved section 10 includes a first straight pipe section 101, a first connecting section 102, a second straight pipe section 103 and a second connecting section 104 which are connected in sequence, and the first straight pipe section 101 and the second straight pipe section 103 are parallel to each other and are both located on the same side of the first connecting section 102, and the first connecting section 102 and the second connecting section 104 are located on opposite sides of the second straight pipe section 103. The extension direction of the first straight pipe section 101 and the extension direction of the second straight pipe section 103 are both the second direction.

[0040] In the above implementation, the first curved section 10 is set to the above structure, so that the first straight pipe section 101 and the second straight pipe section 103 can be connected together through the first connecting section 102, and at the same time, the second straight pipe section 103 is connected to the head end of the next first straight pipe section 101 through the second connecting section 104. The extension direction of the first straight pipe section 101 and the extension direction of the second straight pipe section 103 are both set to the second direction, so that at least part of the first curved section 10 can extend along the second direction, so as to increase the surface area of ​​the first curved section 10, thereby increasing the heat exchange efficiency.

[0041] Of course, the first curved section 10 may also be in other shapes, such as an S-shaped pipe section, a U-shaped pipe section, etc., as long as the first curved section 10 can increase the heat exchange area by bending the pipe section, thereby improving the heat exchange efficiency.

[0042] Optionally, the first connecting segment 102 and the second connecting segment 104 are both U-shaped curved connectors, and the opening direction of the first connecting segment 102 is opposite to the opening direction of the second connecting segment 104, and the opening direction of the first connecting segment 102 and the opening direction of the second connecting segment 104 are both perpendicular to the first direction.

[0043] The first connecting section 102 and the second connecting section 104 are set as U-shaped curved connectors, so that the two joints of the U-shaped curved connector can be respectively connected to the first straight pipe section 101 and the second straight pipe section 103 in the same first curved section 10, thereby realizing that the first connecting section 102 connects the first straight pipe section 101 and the second straight pipe section 103 in the same first curved section 10. At the same time, the second straight pipe section 103 can also be connected to the first straight pipe section 101 in the next adjacent first curved section 10 through the two joints of the U-shaped curved connector.

[0044] Of course, the first connecting section 102 and the second connecting section 104 may also be other structures, such as a straight pipe section with an elbow joint or a V-shaped joint, etc. As long as the first straight pipe section 101 and the second straight pipe section 103 in the same or two adjacent first curved sections 10 can be smoothly connected together, the present disclosure does not limit this.

[0045] Optionally, the opening size of the first connecting section 102 is larger than the opening size of the second connecting section 104 .

[0046] In the above implementation, the opening size of the first connecting segment 102 is larger than that of the second connecting segment 104 , so that the defined space in each first curved segment 10 is large enough to provide arrangement space for the second curved segment 20 .

[0047] The opening size of the first connecting section 102 mentioned above refers to the shortest distance between the two ends of the first connecting section 102 in the second direction. Naturally, the opening size of the second connecting section 104 refers to the shortest distance between the two ends of the second connecting section 104 in the second direction.

[0048] Figure 4 A schematic diagram of the structure of a second pipeline provided in an embodiment of the present disclosure is shown in FIG. Figure 4 Optionally, the second curved section 20 includes a third straight pipe section 201, a third connecting section 202, a fourth straight pipe section 203 and a fourth connecting section 204 connected in sequence, and the third straight pipe section 201 and the fourth straight pipe section 203 are both located on the same side of the third connecting section 202, and the extension direction of the third straight pipe section 201 and the extension direction of the fourth straight pipe section 203 are both the second direction.

[0049] The third straight pipe section 201 , the third connecting section 202 , and the fourth straight pipe section 203 are all located in a space defined by the first straight pipe section 101 , the first connecting section 102 , and the second straight pipe section 103 .

[0050] The second curved section 20 is configured to be a third straight pipe section 201, a third connecting section 202, a fourth straight pipe section 203 and a fourth connecting section 204 connected in sequence, so that the third straight pipe section 201 and the fourth straight pipe section 203 can be connected together through the third connecting section 202, and at the same time, the fourth straight pipe section 203 and the head end of the next third straight pipe section 201 can be connected together through the fourth connecting section 204. The extension direction of the third straight pipe section 201 and the extension direction of the fourth straight pipe section 203 are both configured as the second direction, so that at least a portion of the second curved section 20 can be extended along the second direction, so as to increase the surface area of ​​the second curved section 20, thereby increasing the heat exchange efficiency.

[0051] Optionally, the third connecting segment 202 and the fourth connecting segment 204 are both U-shaped curved connectors, and the opening direction of the third connecting segment 202 is the same as the opening direction of the first connecting segment 102, and the opening direction of the fourth connecting segment 204 is the same as the opening direction of the second connecting segment 104. The third connecting segment 202 is located in the opening of the corresponding first connecting segment 102, and the second connecting segment 104 is located in the opening of the corresponding fourth connecting segment 204.

[0052] In this way, the two joints through the U-shaped bending connector can be connected to the third straight pipe section 201 and the fourth straight pipe section 203 in the same or two adjacent second bending sections 20 respectively.

[0053] Moreover, the second curved section 20 can be arranged according to the curve of the first curved section 10, so that the second pipe 2 can be arranged closely on one side of the first pipe 1, thereby increasing the occupied area of ​​the second pipe 2 and the first pipe 1 in a limited space, thereby improving the heat exchange efficiency. Of course, the third connecting section 202 and the fourth connecting section 204 can also be other structures, such as the V-shaped joint mentioned above.

[0054] See also Figure 5 and Figure 6 Optionally, the heat exchanger further comprises a third pipeline 3, and the third pipeline 3 is located on the same side of the second pipeline 2 and the first pipeline 1. The heat exchange medium in the third pipeline 3, the second pipeline 2 and the first pipeline 1 is different.

[0055] In the above implementation, a third pipe 3 is provided in the heat exchanger, so that the third pipe 3 can be filled with a heat exchange medium different from that in the first pipe 1 and the second pipe 2, so that the heat exchanger can achieve three-phase heat exchange with the external air fluid, thereby further improving the heat exchange efficiency of the heat exchanger.

[0056] The third pipeline 3 is configured as a plurality of third curved segments 30, so that the third pipeline 3 can form a serpentine structure through the winding of the plurality of third curved segments 30, so as to increase the heat exchange area of ​​the heat exchange medium in the second pipeline 2 through the winding structure, thereby improving the heat exchange efficiency.

[0057] Optionally, the third pipe 3 includes a plurality of third curved segments 30 connected end to end, the plurality of third curved segments 30 are arranged along the first direction, and the plurality of third curved segments 30 are arranged one-to-one with the plurality of second curved segments 20, and in the second direction, the third curved segments 30 and the first curved segments 10 are respectively located on opposite sides of the corresponding second curved segments 20. The third curved segments 30 and the second curved segments 20 have the same shape.

[0058] In the above implementation, the third bending section 30 is set to the same shape as the second bending section 20, so that the third bending section 30 can be bent according to the bending of the second bending section 20, so as to facilitate the third pipe 3 to be located on one side of the second pipe 2 just as the second pipe 2 is located on one side of the first pipe 1.

[0059] In this embodiment, the third curved section 30 includes a fifth straight pipe section 301, a fifth connecting section 302, a sixth straight pipe section 303 and a sixth connecting section 304 which are connected in sequence, and the fifth straight pipe section 301 and the sixth straight pipe section 303 are both located on the same side of the fifth connecting section 302, and the extension direction of the fifth straight pipe section 301 and the extension direction of the sixth straight pipe section 303 are both the second direction. The fifth straight pipe section 301, the fifth connecting section 302 and the sixth straight pipe section 303 are all located in the space defined by the third straight pipe section 201, the third connecting section 202 and the fourth straight pipe section 203. Moreover, the fifth connecting section 302 and the sixth connecting section 304 are both U-shaped curved connectors, and the opening direction of the fifth connecting section 302 is the same as the opening direction of the third connecting section 202, and the opening direction of the sixth connecting section 304 is the same as the opening direction of the fourth connecting section 204. The fifth connecting section 302 is located in the opening of the corresponding third connecting section 202, and the fourth connecting section 204 is located in the opening of the corresponding sixth connecting section 304. In this way, the third pipes 3 can be arranged side by side on one side of the second pipe 2, so that more pipes can be arranged in a limited space.

[0060] Optionally, the heat exchanger further includes a plurality of liquid outlet pipes 4, a plurality of liquid inlet joints 5, and a plurality of liquid outlet joints 6, wherein one end of the plurality of liquid outlet pipes 4 is respectively connected to one end of the first pipe 1, one end of the second pipe 2, and one end of the third pipe 3. The plurality of liquid inlet joints 5 are respectively connected to the other end of the first pipe 1, the other end of the second pipe 2, and the other end of the third pipe 3. The plurality of liquid outlet joints 6 correspond to the plurality of liquid outlet pipes 4 one by one, and the liquid outlet joints 6 are connected to the other end of the corresponding liquid outlet pipes 4.

[0061] In the above implementation, different heat exchange media can flow into the first pipeline 1, the second pipeline 2 and multiple third pipelines 3 respectively through the liquid inlet joint 5, and the liquid outlet pipe 4 and the liquid outlet joint 6 can make the different heat exchange media flowing into the first pipeline 1, the second pipeline 2 and multiple third pipelines 3 flow out through the liquid outlet joint 6.

[0062] Optionally, the first pipe 1 , the second pipe 2 and the plurality of third pipes 3 are all aluminum pipes or copper pipes.

[0063] In the above implementation, the first pipe 1, the second pipe 2 and the plurality of third pipes 3 are set as aluminum pipes or copper pipes, so that the heat exchange efficiency of the heat exchanger can be improved by virtue of the good thermal conductivity of the aluminum pipes or copper pipes.

[0064] Optionally, the heat exchanger may further include a fourth pipe, a fifth pipe, etc. The fourth pipe, the fifth pipe, etc. are sequentially arranged at intervals on one side of the third pipe in the second direction, and the arrangement form is the same as the arrangement form in which the second pipe and the third pipe are not arranged on one side of the first pipe. The heat exchange medium in the fourth pipe and the fifth pipe is different from the heat exchange medium in the first pipe 1, the second pipe 2 and the third pipe 3.

[0065] In the above implementation, more pipes are provided, so that the heat exchange medium in the heat exchanger can form multi-phase heat exchange with air fluid and the like by each of the more pipes being filled with different heat exchange media.

[0066] In the disclosed embodiment, the heat exchange medium may be water, tetrafluoroethane, Freon, etc.

[0067] It should be noted that, in the first direction, the distance between two adjacent pipes (see Figure 2 d1 in or Figure 5 The same d2) in FIG. 1 is used so that the same fins can be arranged between the pipes.

[0068] The following briefly introduces the working method of the heat exchanger provided in the embodiment of the present disclosure:

[0069] When the heat exchanger is used, different heat exchange media can be introduced into the first pipe 1, the second pipe 2 and the plurality of third pipes 3 respectively, so that the heat exchanger can realize multi-phase heat exchange and improve heat exchange efficiency.

[0070] The above are only optional embodiments of the present disclosure and are not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure should be included in the protection scope of the present disclosure.

Claims

1. A heat exchanger, characterized in that: The heat exchanger comprises a first pipeline (1) and a second pipeline (2); The first pipe (1) comprises a plurality of first curved sections (10) connected end to end, the plurality of first curved sections (10) are arranged along a first direction, and a line connecting two ends of each first curved section (10) extends along the first direction; The second pipe (2) comprises a plurality of second curved sections (20) connected end to end, the second curved sections (20) having the same shape as the first curved sections (10), the plurality of second curved sections (20) being arranged along the first direction, and the plurality of second curved sections (20) being arranged in one-to-one correspondence with the plurality of first curved sections (10); In the second direction, the second curved section (20) is located on the first side of the corresponding first curved section (10), the second direction is perpendicular to the first direction, and the heat exchange medium in the second pipeline (2) is different from that in the first pipeline (1).

2. The heat exchanger according to claim 1, characterized in that: The first curved section (10) comprises a first straight pipe section (101), a first connecting section (102), a second straight pipe section (103) and a second connecting section (104) which are connected in sequence, and the first straight pipe section (101) and the second straight pipe section (103) are parallel to each other and are both located on the same side of the first connecting section (102), and the first connecting section (102) and the second connecting section (104) are located on opposite sides of the second straight pipe section (103); The extending direction of the first straight pipe section (101) and the extending direction of the second straight pipe section (103) are both the second direction.

3. The heat exchanger according to claim 2, characterized in that: The first connecting section (102) and the second connecting section (104) are both U-shaped curved connectors, and the opening direction of the first connecting section (102) is opposite to the opening direction of the second connecting section (104), and the opening direction of the first connecting section (102) and the opening direction of the second connecting section (104) are both perpendicular to the first direction.

4. The heat exchanger according to claim 3, characterized in that: The opening size of the first connecting section (102) is larger than the opening size of the second connecting section (104).

5. The heat exchanger according to claim 4, characterized in that: The second curved section (20) comprises a third straight pipe section (201), a third connecting section (202), a fourth straight pipe section (203) and a fourth connecting section (204) which are connected in sequence, and the third straight pipe section (201) and the fourth straight pipe section (203) are both located on the same side of the third connecting section (202), and the extension direction of the third straight pipe section (201) and the extension direction of the fourth straight pipe section (203) are both the second direction; The third straight pipe section (201), the third connecting section (202), and the fourth straight pipe section (203) are all located in a space defined by the first straight pipe section (101), the first connecting section (102), and the second straight pipe section (103).

6. The heat exchanger according to claim 5, characterized in that The third connecting section (202) and the fourth connecting section (204) are both U-shaped curved connectors, and the opening direction of the third connecting section (202) is the same as the opening direction of the first connecting section (102), and the opening direction of the fourth connecting section (204) is the same as the opening direction of the second connecting section (104); The third connecting section (202) is located in an opening of the corresponding first connecting section (102), and the second connecting section (104) is located in an opening of the corresponding fourth connecting section (204).

7. The heat exchanger according to any one of claims 1 to 6, characterized in that: The heat exchanger further comprises a third pipe (3), wherein the third pipe (3) is located on the same side of the second pipe (2) and the first pipe (1); The heat exchange media in the third pipeline (3), the second pipeline (2) and the first pipeline (1) are all different.

8. The heat exchanger according to claim 7, characterized in that The third pipe (3) comprises a plurality of third curved sections (30) connected end to end, the plurality of third curved sections (30) are arranged along the first direction, and the plurality of third curved sections (30) are arranged in one-to-one correspondence with the plurality of second curved sections (20), and in the second direction, the third curved sections (30) and the first curved sections (10) are respectively located on opposite sides of the corresponding second curved sections (20); The third curved section (30) has the same shape as the second curved section (20).

9. The heat exchanger according to claim 7, characterized in that: The first pipe (1), the second pipe (2) and the third pipe (3) are all aluminum pipes or copper pipes.

10. The heat exchanger according to claim 7, characterized in that The heat exchanger further comprises a plurality of liquid outlet pipes (4), a plurality of liquid inlet joints (5) and a plurality of liquid outlet joints (6). One end of each of the plurality of liquid outlet pipes (4) is respectively connected to one end of the first pipe (1), one end of the second pipe (2), and one end of the third pipe (3); The plurality of liquid inlet joints (5) are respectively connected to the other end of the first pipeline (1), the other end of the second pipeline (2) and the other end of the third pipeline (3); The plurality of liquid outlet joints (6) correspond to the plurality of liquid outlet pipes (4) one by one, respectively, and the liquid outlet joints (6) are connected to the other end of the corresponding liquid outlet pipe (4).

Images