Heat Exchanger

Abstract

The present invention provides a heat exchanger, comprising: at least two heat exchange tube groups, the heat exchange tube groups comprising at least two heat exchange tubes; a connector, at least two heat exchange tubes are connected through the connector, at least two heat exchange tube groups are connected through the connector, and the two heat exchange tube groups are not connected. The present invention solves the problem of complex structure of the A-type heat exchanger in the prior art.

Description

Technical Field

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

[0002] Most of the A-type structure heat exchanger designs in the prior art are evaporator designs, and are directly bent from the middle of the heat exchanger. The bent part is difficult to process and the overall structure is complex. The bending will also have a certain impact on the heat exchange performance of the heat exchanger. In addition, the heat exchanger is usually arranged in a symmetrical structure, and the flow area of ​​the heat exchange channel from the inlet to the outlet remains unchanged, resulting in poor heat exchange effect. Summary of the invention

[0003] The main purpose of the present invention is to provide a heat exchanger to solve the problem of complex structure of the A-type heat exchanger in the prior art.

[0004] In order to achieve the above-mentioned purpose, the present invention provides a heat exchanger, comprising: at least two heat exchange tube groups, the heat exchange tube group comprising at least two heat exchange tubes; a connecting piece, at least two heat exchange tubes are connected through the connecting piece, at least two heat exchange tube groups are connected through the connecting piece, and the two heat exchange tube groups are not connected.

[0005] Furthermore, the connecting piece includes a plate component and a plurality of connecting parts, the plate component and the connecting parts form a connecting cavity, and each connecting cavity is connected to at least two heat exchange tubes.

[0006] Furthermore, the connecting piece is provided with a heat exchange tube groove for inserting the heat exchange tube.

[0007] Furthermore, the plate member is bent so that a predetermined angle is formed between the two heat exchange tube groups.

[0008] Furthermore, the plate component includes: a first plate component, a second plate component, and a connecting portion arranged between the first plate component and the second plate component.

[0009] Furthermore, the connecting portion is integrally provided with the first plate and the second plate, and the connecting portion protrudes toward the side without the heat exchange tube.

[0010] Furthermore, the connecting portion includes a first extending arm extending and bent from a side of the first plate close to the second plate, and a second extending arm disposed on the second plate and connected to a surface of the first extending arm opposite to each other.

[0011] Furthermore, the first plate component is spaced apart from the second plate component, and the plate component further includes a third plate component, and the first plate component and the second plate component are connected via the third plate component.

[0012] Further, the heat exchange tube and the connecting portion are located on the same side of the plate component; or the heat exchange tube and the plate component are located on the same side of the connecting portion.

[0013] Furthermore, in the same heat exchange tube group, the flow area of ​​the heat exchange tube on the inlet side is different from the flow area of ​​the heat exchange tube on the outlet side.

[0014] Furthermore, in the same heat exchange tube group, ends of at least two heat exchange tubes away from the connecting pieces are staggered with each other.

[0015] By applying the technical solution of the present invention, a connector is provided, and each heat exchange tube group is connected through the connector, but not communicated through the connector. The heat exchange tubes in each heat exchange tube group are communicated with each other through the connector. In this way, the connection function of the connector connects each heat exchange tube group into a whole, so that each heat exchange tube group can exchange heat independently from each other, thereby improving the heat exchange performance of the heat exchanger. The communication function of the connector connects each heat exchange tube into a heat exchange tube group. This dual flow path or other multi-flow path setting method is also conducive to improving the heat exchange performance. The structure of the connector itself is simple and easy to process, which greatly reduces the structural complexity of the heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 The schematic diagram of the structure of the heat exchanger in the first embodiment of the present invention is shown;

[0018] Figure 2 A schematic structural diagram of a heat exchanger in Embodiment 2 of the present invention is shown;

[0019] Figure 3 The schematic diagram of the structure of the heat exchanger in the fourth embodiment of the present invention is shown;

[0020] Figure 4 The structure diagram of the heat exchanger in the fifth embodiment of the present invention is shown;

[0021] Figure 5 A schematic structural diagram of a heat exchanger in Embodiment 6 of the present invention is shown.

[0022] The above drawings include the following reference numerals:

[0023] 10. Heat exchange tube group; 11. Heat exchange tube; 12. Connecting part; 20. Plate member; 21. First plate member; 22. Second plate member; 23. Third plate member; 30. Connecting member. DETAILED DESCRIPTION

[0024] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0026] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.

[0027] In order to solve the problem of complex structure of the A-type heat exchanger in the prior art, the present invention provides a heat exchanger.

[0028] Embodiment 1

[0029] like Figure 1 A heat exchanger shown includes at least two heat exchange tube groups 10 and a connector 30, the heat exchange tube group 10 includes at least two heat exchange tubes 11; at least two heat exchange tubes 11 are connected through the connector 30, at least two heat exchange tube groups 10 are connected through the connector 30, and the two heat exchange tube groups 10 are not connected.

[0030] In this embodiment, the connecting piece 30 is provided, and each heat exchange tube group 10 is connected through the connecting piece 30, but not communicated through the connecting piece 30. The heat exchange tubes 11 in each heat exchange tube group 10 are communicated with each other through the connecting piece 30. In this way, the connecting function of the connecting piece 30 connects each heat exchange tube group 10 into a whole, so that each heat exchange tube group 10 can exchange heat independently from each other, thereby improving the heat exchange performance of the heat exchanger. The connecting function of the connecting piece 30 connects each heat exchange tube 11 into a heat exchange tube group 10. This double flow path or other multi-flow path setting method is also conducive to improving the heat exchange performance. The connecting piece 30 itself has a simple structure and is easy to process, which greatly reduces the structural complexity of the heat exchanger.

[0031] In this embodiment, the connector 30 includes a plate member 20 and a plurality of connecting portions 12 . The plate member 20 and the connecting portions 12 form a connecting cavity, and each connecting cavity is connected to at least two heat exchange tubes 11 .

[0032] Specifically, the connecting portion 12 has a convex bulge, and when the plate member 20 and the connecting portion 12 are attached together, a connecting cavity is formed between the convex bulge and the plate member 20, and a heat exchange tube groove is provided on the connecting portion 12 or the plate member 20, and the heat exchange tube 11 is inserted into the heat exchange tube groove, so that the heat exchange tube 11 is connected to the connecting cavity, and the connecting cavity is simultaneously connected to multiple heat exchange tubes 11 of the same heat exchange tube group 10. The setting of the connecting cavity realizes the mutual communication between the heat exchange tubes 11, so that the fluid can flow between the heat exchange tubes 11 of the same heat exchange tube group 10, thereby performing heat exchange and other processes. Since there are multiple heat exchange tube groups 10, there are also multiple convex bulges, and the connecting cavities formed therefrom are also multiple, and the connecting cavities are separated from each other, and the heat exchange tubes 11 of each heat exchange tube group 10 are connected to the same connecting cavity, thereby realizing the connection and communication functions of the connector 30.

[0033] In this embodiment, the plate member 20 is bent so that a predetermined angle is formed between the two heat exchange tube groups 10. The bent heat exchanger is an A-type structure heat exchanger, so it can meet the use requirements of the A-type structure. Since the plate member 20 itself has a simple structure, the bending process is very convenient, so there is no need to bend the heat exchange tube 11, which simplifies the processing difficulty of the heat exchanger. The specific size of the predetermined angle can be selected accordingly as needed.

[0034] The plate member 20 of this embodiment is formed by bending a plate to form a stamped sheet metal part. The specific structure of the plate member 20 can be set in a variety of ways. In this embodiment, the plate member 20 is an integral part and is formed by directly bending the plate as a whole. The main advantage of this setting method is that it is easy to bend the plate member 20, reducing the complexity of the structure and the difficulty of processing. The plate member 20 of this embodiment is formed by directly extruding and bending the plate through a bending machine and other equipment. Accordingly, in order to form an A-type structure, the heat exchange tube group 10 is connected to the surface of the outer side of the bending of the connecting member 30. In this way, the bending part of the connecting member 30 protrudes toward the inner side of the A-type structure, and also protrudes toward the middle of the two heat exchange tube groups 10. This structure makes the processing of the plate member 20 very convenient, and the required plate member 20 can be obtained by direct processing with a bending machine.

[0035] In this embodiment, the heat exchange tube 11 and the connecting portion 12 are located on the same side of the plate member 20 , and the heat exchange tube groove is provided on the connecting portion 12 .

[0036] In this embodiment, the flow area of ​​the heat exchange tube on the inlet side is different from the flow area of ​​the heat exchange tube on the outlet side in the same heat exchange tube group 10. Preferably, the flow area of ​​the heat exchange tube 11 gradually increases along the direction from the inlet side to the outlet side. Of course, the flow area of ​​the heat exchange tube 11 can also gradually decrease along the direction from the inlet side to the outlet side. The specific method can be selected according to the actual situation.

[0037] Optionally, in the same heat exchange tube group 10 , ends of at least two heat exchange tubes 11 away from the connecting piece 30 are staggered with each other.

[0038] Embodiment 2

[0039] The difference from the first embodiment is that the bending method of the bending part of the plate member 20 is different.

[0040] like Figure 2 In the embodiment shown, the plate member 20 includes a first plate member 21, a second plate member 22, and a connecting portion disposed between the first plate member 21 and the second plate member 22. The first plate member 21, the second plate member 22, and the connecting portion are integrally formed and arranged as a whole piece. The difference is that this embodiment is further processed on the basis of the first embodiment, and the connecting portion is raised toward the side without the heat exchange tube 11, that is, the connecting portion is further bent in a direction away from the inner side of the A-type structure to form an approximately Ω-shaped structure, thereby forming Figure 2 In the form of the A-shaped structure, the bend of the connection part protrudes to the outside of the A-shaped structure, that is, protrudes to the side without the heat exchange tube 11. Although the plate member 20 of this structure is not as easy to process as the plate member 20 in the first embodiment, it can improve the structural stability and structural strength of the plate member 20, which is conducive to the stable operation of the heat exchanger.

[0041] Embodiment 3

[0042] The difference from the first embodiment is that the plate member 20 is provided in a split manner.

[0043] In the present embodiment not shown in the figure, the plate member 20 includes a first plate 21 and a second plate 22 which are processed separately, the first plate 21 is connected to one heat exchange tube group 10, the second plate 22 is connected to another heat exchange tube group 10, the part where the first plate 21 and the second plate 22 are connected to each other is used as a connecting part, and the two are directly connected together at the connecting part by welding or the like, and when connecting, the first plate 21 and the second plate 22 are placed to form an angle other than 180 degrees, and then the two are welded together to complete. This structure has high overall strength and is relatively easy to process.

[0044] Embodiment 4

[0045] The difference from the third embodiment is that the specific structure of the plate member 20 is different.

[0046] Based on the fact that when the first plate 21 and the second plate 22 are directly welded in the third embodiment, the welding area between the two is small, which is inconvenient for welding operation and may even affect the structural strength. Therefore, further improvements are made on the basis of the third embodiment, such as Figure 3As shown, the connecting portion includes a first extending arm extending and bent from the first plate 21 close to the second plate 22, and a second extending arm arranged on the second plate 22 and connected to the surface of the first extending arm opposite to each other. When welding, the welding operation can be performed on the opposite surfaces of the first extending arm and the second extending arm. In this way, the connection area between the first plate 21 and the second plate 22 is increased, the connection strength between the two is improved, and the connection effect is ensured.

[0047] It should be noted that, during welding, the first plate 21 and the second plate 22 can be placed to form an angle other than 180 degrees, and then the two can be welded together; or the first plate 21 and the second plate 22 can be welded and then bent to form an angle other than 180 degrees between the first plate 21 and the second plate 22.

[0048] Embodiment 5

[0049] The difference from the third embodiment is that the specific structure of the plate member 20 is different.

[0050] This embodiment is the same as the fourth embodiment. Based on the fact that the plate member 20 in the third embodiment is not convenient for welding during welding, improvements are made on the basis of the third embodiment. Figure 4 As shown, the connecting member 30 includes a first plate 21 and a second plate 22 which are separately arranged, and also includes a third plate 23 which is separately arranged. The surface of the third plate 23 is connected to the surfaces of the first plate 21 and the second plate 22. In this way, there is no direct connection between the first plate 21 and the second plate 22, but they are indirectly connected through the third plate 23. The third plate 23 is used to improve the connection strength between the various parts of the plate member 20, and the connection effect is ensured. In this embodiment, after the first plate 21 and the second plate 22 are welded to the third plate 23 respectively, the third plate 23 is bent so that the first plate 21 and the second plate 22 form an angle other than 180 degrees; or when welding, the first plate 21 and the second plate 22 are first placed to form an angle other than 180 degrees, and then they are welded to the third plate 23 respectively.

[0051] It should be noted that the above-mentioned embodiments 2 to 5 only list several implementation methods. Of course, further improvements can be made on the basis of the above-mentioned embodiments, or multiple embodiments can be combined, or other structural forms of connectors 30 can be adopted.

[0052] Embodiment 6

[0053] The difference from the first embodiment is that the arrangement positions of the heat exchange tube 11, the connecting portion 12 and the plate member 20 are different.

[0054] like Figure 5As shown, the plate member 20 is provided with a heat exchange tube groove, and the heat exchange tube 11 is inserted into the heat exchange tube groove, thereby penetrating the plate member 20, and the heat exchange tube 11 and the plate member 20 are located on the same side of the connecting portion 12. During processing, the heat exchange tube 11 passes through the plate member 20 and is connected to the connecting portion 12, so that the plate member 20 has a certain supporting effect on the heat exchange tube 11, thereby improving the structural strength.

[0055] It should be noted that, although the configuration in the sixth embodiment is described on the basis of the first embodiment, it is not limited to the first embodiment and can also be applied to other embodiments. Moreover, the first embodiment and the sixth embodiment only list several implementation methods, and further improvements can be made on the basis of the above embodiments, or other connection methods can be adopted.

[0056] It should be noted that, the multiple in the above embodiments refers to at least two.

[0057] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0058] 1. Solve the problem of complex structure of A-type heat exchanger in the prior art;

[0059] 2. The connector has a simple structure and is easy to bend, and will not affect the heat exchange performance of the heat exchange tube group;

[0060] 3. The heat exchange tube groups on both sides of the connector are not connected, and each performs heat exchange independently, thereby improving the heat exchange performance of the heat exchanger;

[0061] 4. The multi-flow path setting is conducive to improving heat exchange performance;

[0062] 5. The asymmetric setting improves the heat transfer performance of the heat exchanger.

[0063] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0064] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0065] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0066] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A heat exchanger, characterized in that: include: At least two heat exchange tube groups (10), wherein the heat exchange tube groups (10) comprise at least two heat exchange tubes (11); A connecting piece (30), wherein the at least two heat exchange tubes (11) are connected via the connecting piece (30), at least two heat exchange tube groups (10) are connected via the connecting piece (30), and the two heat exchange tube groups (10) are not connected; The connecting member (30) comprises a plate member (20) and a plurality of connecting portions (12), the plate member (20) and the connecting portions (12) forming a connecting cavity, each of the connecting cavities being connected to the at least two heat exchange tubes (11); The plate member (20) is bent so that a predetermined angle is formed between the two heat exchange tube groups (10); The plate component (20) comprises: a first plate component (21), a second plate component (22), and a connecting portion arranged between the first plate component (21) and the second plate component (22).

2. The heat exchanger according to claim 1, characterized in that: The connecting piece (30) is provided with a heat exchange tube groove for inserting the heat exchange tube (11).

3. The heat exchanger according to claim 1, characterized in that: The connecting portion is integrally provided with the first plate (21) and the second plate (22), and the connecting portion protrudes toward a side where the heat exchange tube (11) is not present.

4. The heat exchanger according to claim 1, characterized in that: The connecting portion comprises a first extending arm extending and bent from a side of the first plate (21) close to the second plate (22), and a second extending arm arranged on the second plate (22) and connected to a surface of the first extending arm opposite to each other.

5. The heat exchanger according to claim 1, characterized in that: The first plate member (21) and the second plate member (22) are arranged at a distance from each other, and the plate component (20) further comprises a third plate member (23), and the first plate member (21) and the second plate member (22) are connected via the third plate member (23).

6. The heat exchanger according to claim 1, characterized in that The heat exchange tube (11) and the connecting portion (12) are located on the same side of the plate component (20); or the heat exchange tube (11) and the plate component (20) are located on the same side of the connecting portion (12).

7. The heat exchanger according to claim 1, characterized in that In the same heat exchange tube group (10), the flow area of ​​the heat exchange tube on the inlet side is different from the flow area of ​​the heat exchange tube on the outlet side.

8. The heat exchanger according to claim 1, characterized in that In the same heat exchange tube group (10), ends of at least two heat exchange tubes (11) away from the connecting piece (30) are arranged staggered with each other.

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