Heat exchanger

Abstract

The utility model provides a heat exchanger which comprises a heat exchange assembly, the heat exchange assembly comprises two fixed side plates, a first collecting pipe, a second collecting pipe and a plurality of heat exchange pipes, the first collecting pipe and the second collecting pipe are arranged at intervals, and the heat exchange pipes are arranged at intervals in the axial direction of the first collecting pipe and the second collecting pipe. The two ends of each heat exchange pipe communicate with the first collecting pipe and the second collecting pipe correspondingly. The two fixed side plates are arranged at the two ends of the first collecting pipe in the axial direction correspondingly and located on the outer sides of the heat exchange pipes, and at least one fixed side plate is provided with a positioning structure used for being matched with a fixing piece. The heat exchange assembly is matched with the positioning structure through one part of the fixing piece and is wound on the two fixing side plates to be fixed. According to the utility model, by arranging the positioning structure, the connection between the fixing piece and the fixing side plate is more stable, the fixation of the heat exchange assembly is realized, the problem of relative movement of the heat exchange assembly is avoided, and the success rate of integral welding of the heat exchanger is further ensured.

Description

Technical Field

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

[0002] The existing heat exchanger includes a heat exchange component, which includes two fixed side plates, a first header, a second header and a plurality of heat exchange tubes. The first header and the second header are spaced apart, and the plurality of heat exchange tubes are spaced apart axially between the first header and the second header, and both ends of each heat exchange tube are respectively connected to the first header and the second header; the two fixed side plates are respectively arranged at both ends of the first header in the axial direction and are located on the outside of the heat exchange tube. During assembly and welding, the assembly of the heat exchange component cannot be relatively fixed, and relative movement may occur, which may easily lead to welding defects such as cold welding, resulting in a high scrap rate of the heat exchanger. Utility Model Content

[0003] The utility model provides a heat exchanger to solve the problem in the prior art that the heat exchange components cannot be relatively fixed and thus relatively move in a welding furnace.

[0004] In order to solve the above problems, the utility model provides a heat exchanger, including a heat exchange component, the heat exchange component includes two fixed side plates, a first collecting pipe, a second collecting pipe and a plurality of heat exchange tubes, the first collecting pipe and the second collecting pipe are arranged at intervals, the plurality of heat exchange tubes are arranged at intervals in the axial direction of the first collecting pipe and the second collecting pipe, and the two ends of each heat exchange tube are respectively connected with the first collecting pipe and the second collecting pipe; the two fixed side plates are respectively arranged at the two ends of the first collecting pipe in the axial direction and are located on the outside of the heat exchange tube, at least one fixed side plate has a positioning structure for cooperating with a fixing piece; a part of the fixing piece cooperates with the positioning structure to fix the heat exchange component.

[0005] Furthermore, the positioning structure includes a process groove arranged on the side of the fixed side plate; a part of the fixing member is wrapped around the two fixed side plates, and a part of the fixing member is arranged in the process groove to fix the heat exchange component.

[0006] Furthermore, there are at least two groups of heat exchange components, and the two adjacent groups of heat exchange components are respectively a first heat exchange component and a second heat exchange component. The first heat exchange component and the second heat exchange component are arranged side by side, and the fixed side plate of the first heat exchange component and the fixed side plate of the second heat exchange component are correspondingly provided with process grooves. A part of the fixing part is wrapped around the fixed side plate of at least one of the first heat exchange component and the second heat exchange component, and is correspondingly arranged in the process groove to relatively fix the first heat exchange component and the second heat exchange component; the first heat exchange component and the second heat exchange component after being relatively fixed are fixedly connected by welding.

[0007] Furthermore, a portion of each fixing part is respectively wrapped around the fixed side plate of each heat exchange component, and each fixing part is correspondingly arranged in the process groove to fix each heat exchange component individually; or, the fixed side plate of the first heat exchange component and the fixed side plate of the second heat exchange component have a first side that abuts against each other, and the first side is provided with a process groove, and a fixing part is sequentially wrapped around the fixed side plate of the first heat exchange component, the process groove of the first side and the fixed side plate of the second heat exchange component until it passes through all the process grooves and is wrapped and fixed.

[0008] Further, the process groove is a through hole, and the cross section along the direction perpendicular to the axial direction of the first collecting pipe is one of square, arc and trapezoidal; and / or, both fixed side plates have correspondingly arranged process grooves.

[0009] Furthermore, the positioning structure includes a positioning column protruding from the fixed side plate in the thickness direction of the fixed side plate, a part of the fixing member is connected to the positioning column of the heat exchange component, a part of the fixing member is wrapped around the two fixed side plates, and cooperates with the positioning column to fix the heat exchange component.

[0010] Furthermore, the fixed side plate includes a clamping piece; there are at least two groups of heat exchange components, and the two adjacent groups of heat exchange components are respectively a first heat exchange component and a second heat exchange component, and the first heat exchange component and the second heat exchange component are arranged side by side; the clamping piece of the first heat exchange component is clamped and matched with the clamping piece of the second heat exchange component to relatively fix the fixed side plate of the first heat exchange component and the fixed side plate of the second heat exchange component.

[0011] Furthermore, there are at least two groups of heat exchange components, and the two adjacent groups of heat exchange components are respectively a first heat exchange component and a second heat exchange component, and the first heat exchange component and the second heat exchange component are arranged side by side; the positioning structure on the fixed side plate of the first heat exchange component includes a protrusion, and the positioning structure on the fixed side plate of the second heat exchange component includes a snap-in groove, a part of the protrusion extends into the snap-in groove, and cooperates with the inner wall of the snap-in groove to relatively fix the fixed side plate of the first heat exchange component and the fixed side plate of the second heat exchange component.

[0012] Furthermore, there are at least two groups of heat exchange components, and the two adjacent groups of heat exchange components are respectively a first heat exchange component and a second heat exchange component, and the first heat exchange component and the second heat exchange component are arranged side by side and connected; the heat exchanger also includes an external connecting pipe, the external connecting pipe has a fluid inlet and a fluid outlet that are connected to each other, the fluid inlet is connected to the first heat exchange component, and the fluid outlet is connected to the second heat exchange component.

[0013] Furthermore, the positioning structure is made of a high temperature resistant material, and the melting point of the high temperature resistant material is higher than the highest temperature during welding.

[0014] Applying the technical solution of the utility model, the utility model provides a heat exchanger, including a heat exchange component, the heat exchange component includes two fixed side plates, a first header, a second header and a plurality of heat exchange tubes, the first header and the second header are spaced apart, the plurality of heat exchange tubes are spaced apart axially between the first header and the second header, and the two ends of each heat exchange tube are respectively connected to the first header and the second header; the two fixed side plates are respectively arranged at the two ends of the first header in the axial direction and are located on the outside of the heat exchange tube, at least one fixed side plate has a positioning structure for cooperating with a fixing piece; a part of the fixing piece cooperates with the positioning structure to fix the heat exchange component.

[0015] The utility model realizes the fixation of a single heat exchange component by setting a part of the fixing member to be wrapped around the positioning structure; when there are at least two groups of heat exchange components, and the two adjacent groups of heat exchange components are respectively the first heat exchange component and the second heat exchange component, the positioning structure on the fixed side plate of the first heat exchange component and the positioning structure on the fixed side plate of the second heat exchange component are respectively matched with the fixing member, so that the first heat exchange component and the second heat exchange component are connected as one, and the relative fixation of the first heat exchange component and the second heat exchange component is realized, so that when the heat exchanger is welded, the first heat exchange component and the second heat exchange component will not have the problem of relative movement, thereby ensuring the success rate of the overall welding of the multi-layer heat exchanger, and improving the yield rate and processing efficiency of the multi-layer heat exchanger; the heat exchanger proposed by the utility model has a compact structure and a high heat exchange capacity. Through the cooperation of the positioning structure, the assembly before welding is realized, and it can be welded and formed in one time by furnace welding later, thereby improving the production efficiency of the heat exchanger; compared with the method of preliminarily fixing multiple groups of heat exchange components by spot welding in the prior art, the heat exchanger proposed by the utility model simplifies the production process, and the connection between multiple groups of heat exchange components is more firm and reliable, which is suitable for large-scale promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting 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 on the present invention. In the drawings:

[0017] Figure 1 The external structure schematic diagram of the heat exchanger provided by the embodiment of the utility model is shown;

[0018] Figure 2 Shows Figure 1 A local enlarged schematic diagram of the middle A;

[0019] Figure 3 The figure shows the external structure schematic diagram of the heat exchanger provided by the embodiment of the utility model at another angle;

[0020] Figure 4Shows Figure 3 A partial enlarged schematic diagram of point B in the middle;

[0021] Figure 5 A specific structural schematic diagram of a heat exchange component fixed by a fixing member provided in an embodiment of the utility model is shown.

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

[0023] 1. Fixed side plate; 2. First header; 3. Second header; 4. Heat exchange tube; 5. First heat exchange component; 6. Second heat exchange component; 7. Process tank; 8. Positioning column; 9. External connecting pipe; 10. Inlet pipe; 11. Outlet pipe; 12. Fixing parts. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figures 1 to 5 As shown, an embodiment of the utility model provides a heat exchanger, comprising two fixed side plates 1, a first header 2, a second header 3 and a plurality of heat exchange tubes 4, wherein the first header 2 and the second header 3 are spaced apart, and the plurality of heat exchange tubes 4 are spaced apart in the axial direction of the first header 2 and the second header 3, and both ends of each heat exchange tube 4 are respectively connected with the first header 2 and the second header 3; the two fixed side plates 1 are respectively arranged at both ends of the first header 2 in the axial direction and are located on the outside of the heat exchange tube 4, and at least one fixed side plate 1 has a positioning structure for cooperating with a fixing member 12; a part of the fixing member 12 cooperates with the positioning structure to fix the heat exchange component (for example: the heat exchange component cooperates with the positioning structure through a part of the fixing member 12, and is wrapped around the two fixed side plates 1 for fixing).

[0026] For the above embodiment, Figure 5 As shown, the utility model realizes the fixation of a single heat exchange component by arranging at least a part of the fixing member 12 to be wound around the positioning structure.

[0027] In another embodiment of the utility model, the heat exchanger includes at least two groups of heat exchange components, the heat exchange components include a fixed side plate 1, a first collecting pipe 2, a second collecting pipe 3, and a plurality of heat exchange tubes 4 connected to the first collecting pipe 2 and the second collecting pipe 3; the fixed side plate 1 is arranged at one end of the first collecting pipe 2 in the axial direction and is located on the outside of the heat exchange tube 4, and the fixed side plate 1 has a positioning structure; the two adjacent groups of heat exchange components are respectively a first heat exchange component 5 and a second heat exchange component 6; wherein the positioning structure on the fixed side plate 1 of the first heat exchange component 5 and the positioning structure on the fixed side plate 1 of the second heat exchange component 6 are respectively matched with the fixing member 12, so that the first heat exchange component 5 and the second heat exchange component 6 are relatively fixed; the first heat exchange component 5 and the second heat exchange component 6 after being relatively fixed are fixedly connected by welding.

[0028] The embodiment of the utility model sets a positioning structure on the fixed side plate 1 of the first heat exchange component 5 and a positioning structure on the fixed side plate 1 of the second heat exchange component 6, which cooperate with the fixing piece 12 respectively, so that the first heat exchange component 5 and the second heat exchange component 6 are connected as a whole, thereby realizing the relative fixation of the first heat exchange component 5 and the second heat exchange component 6, so that when the heat exchanger is welded, the first heat exchange component 5 and the second heat exchange component 6 will not have the problem of relative movement, thereby ensuring the success rate of the overall welding of the multi-layer heat exchanger, and improving the yield rate and processing efficiency of the multi-layer heat exchanger; the heat exchanger proposed by the utility model has a compact structure and high heat exchange capacity. Through the cooperation of the positioning structure, assembly before welding is realized, and it can be subsequently welded into shape by furnace welding, thereby improving the production efficiency of the heat exchanger; compared with the method of preliminarily fixing multiple groups of heat exchange components by spot welding in the prior art, the heat exchanger proposed by the utility model simplifies the production process, and the connection between the multiple groups of heat exchange components is more firm and reliable, which is suitable for large-scale promotion and use.

[0029] In a specific embodiment of the present invention, the cross-sectional shape of the fixed side plate 1 along the direction perpendicular to the extension direction is L-shaped, which not only ensures that the structural strength of the fixed side plate 1 meets the actual use requirements, but also facilitates the processing and forming of the fixed side plate 1.

[0030] like Figure 1 , Figure 2 and Figure 3 As shown, the positioning structure includes a process groove 7 arranged on the side of the fixed side plate 1; at least a part of the fixing member 12 is wrapped around the two fixed side plates 1, and a part of the fixing member 12 is arranged in the process groove 7 to fix the heat exchange component.

[0031] In a specific embodiment of the present invention, the process tank 7 of the first heat exchange component 5 corresponds to the process tank 7 of the second heat exchange component 6, such as Figure 5As shown, the fixing member 12 is a metal wire, at least a portion of which is wound in the process groove 7 of the first heat exchange component 5 and the process groove 7 of the second heat exchange component 6 to relatively fix the first heat exchange component 5 and the second heat exchange component 6. By arranging the metal wire and the process groove 7 to work together, the reliability of the positioning structure is ensured, and the positioning structure is simplified and easier to assemble.

[0032] In a specific embodiment of the present invention, Figure 5 As shown, the metal wire is iron wire for ease of mass production and procurement.

[0033] Specifically, there are at least two groups of heat exchange components, and the two adjacent groups of heat exchange components are respectively the first heat exchange component 5 and the second heat exchange component 6. The first heat exchange component 5 and the second heat exchange component 6 are arranged side by side, and the fixed side plate 1 of the first heat exchange component 5 and the fixed side plate 1 of the second heat exchange component 6 are correspondingly provided with a process groove 7. A part of the fixing part 12 is wrapped around the fixed side plate 1 of at least one of the first heat exchange component 5 and the second heat exchange component 6, and is correspondingly arranged in the process groove 7 to relatively fix the first heat exchange component 5 and the second heat exchange component 6; the relatively fixed first heat exchange component 5 and the second heat exchange component 6 are fixedly connected by welding.

[0034] like Figure 1 , Figure 2 and Figure 3 As shown, in a specific embodiment of the utility model, the process groove 7 of the first heat exchange component 5 corresponds to the process groove 7 of the second heat exchange component 6, and at least a part of the fixing member 12 is wrapped in the process groove 7 of the first heat exchange component 5 and the process groove 7 of the second heat exchange component 6 to relatively fix the first heat exchange component 5 and the second heat exchange component 6; the fixing member 12 passes through the process groove 7 on the two fixed side plates 1 of the first heat exchange component 5 and the process groove 7 on the two fixed side plates 1 of the second heat exchange component 6. By setting the fixing member 12 to pass through the process groove 7 on the two fixed side plates 1 of the first heat exchange component 5 and the process groove 7 on the two fixed side plates 1 of the second heat exchange component 6, the connection strength of the positioning structure is maximized, and the balance of the fixing force of the first heat exchange component 5 and the second heat exchange component 6 is ensured.

[0035] Optionally, in a specific embodiment of the utility model, the fixing member 12 is a metal wire; the fixed side plate 1 has a plurality of process grooves 7 arranged at intervals; there are a plurality of metal wires, at least a portion of a metal wire is wound in a process groove 7 of the first heat exchange component 5, on the plate surface of the fixed side plate 1 and in a process groove 7 of the second heat exchange component 6 (for example: 8-shaped winding method), so as to wind and fix the first heat exchange component 5 and the second heat exchange component 6; or, there is one metal wire, and a metal wire is wound in sequence through a process groove 7 of the first heat exchange component 5 and a process groove 7 of the second heat exchange component 6, until it passes through all the process grooves 7 of the first heat exchange component 5 and all the process grooves 7 of the second heat exchange component 6 and is then wound and fixed (for example, serpentine winding method). With this arrangement, the relative fixation of the first heat exchange component 5 and the second heat exchange component 6 is achieved with a simple structure, so that when the heat exchanger is welded, the first heat exchange component 5 and the second heat exchange component 6 will not have the problem of relative movement.

[0036] Specifically, a portion of each fixing part 12 is respectively wrapped around the fixed side plate 1 of each heat exchange component, and each fixing part 12 is correspondingly arranged in the process groove 7 to fix each heat exchange component individually; by arranging multiple fixing parts 12, each heat exchange component can be fixed by the fixing part 12 respectively, so that the fixing part 12 is easy to wrap and the processing technology is simple.

[0037] Alternatively, the fixed side plate 1 of the first heat exchange component 5 and the fixed side plate 1 of the second heat exchange component 6 have first sides that abut against each other, the first side is provided with a process groove 7, and a fixing member 12 is sequentially wound around the fixed side plate 1 of the first heat exchange component 5, the process groove 7 of the first side, and the fixed side plate 1 of the second heat exchange component 6 until it passes through all the process grooves 7 and is wound and fixed. By providing one fixing member 12, one fixing member 12 can be wound around multiple heat exchange components, effectively ensuring the relative fixation between the heat exchange components.

[0038] It should be noted that the process tank 7 can be set in one of the first heat exchange component 5 and the second heat exchange component 6, and the specific position and number of the process tank 7 can be flexibly set according to actual use requirements; in addition, by setting the process tank 7 on the first side, it is beneficial to the processing and forming of the process tank 7.

[0039] Optionally, the process groove 7 is a through hole, and the cross section in the direction perpendicular to the axial direction of the first header 2 is one of square, arc and trapezoid; and / or, both the two fixed side plates 1 have corresponding process grooves 7. By setting the cross-sectional shape of the process groove 7 in the direction perpendicular to the axial direction of the first header 2, it is convenient for the process groove 7 to be processed and formed, and for the process groove 7 to be installed with the metal wire; by setting the two fixed side plates 1 to have corresponding process grooves 7, the fixing member 12 (for example, iron wire) can be bundled with the heat exchange component from top to bottom, thereby realizing uniform positioning during furnace welding.

[0040] It should be noted that: in a specific embodiment of the present invention, after the first heat exchange component 5 and the second heat exchange component 6 are fixedly connected by welding, the metal wire is disconnected from the first heat exchange component 5 and the second heat exchange component 6. By setting the metal wire to be disconnected from the first heat exchange component 5 and the second heat exchange component 6 after welding, the lightness of the heat exchanger is ensured; in addition, the metal wire can also be reused, which effectively reduces the cost.

[0041] In a specific embodiment of the present invention, the process grooves 7 on the two fixed side plates 1 can be arranged in parallel and in alignment (that is, the central axes of the two process grooves 7 are collinear); or they can be arranged in parallel and not in alignment; in addition, the process grooves 7 can be arranged on the same side or on different sides of the two fixed side plates 1, and can be flexibly arranged according to the actual bundling requirements of the fixing parts 12.

[0042] The positioning structure includes a positioning column 8 protruding from the fixed side plate 1 in the thickness direction of the fixed side plate 1, a portion of the fixing member 12 is connected to the positioning column 8 of the heat exchange component, a portion of the fixing member 12 is wrapped around the two fixed side plates 1, and cooperates with the positioning column 8 to fix the heat exchange component.

[0043] like Figure 1 and Figure 2 As shown, in a specific embodiment of the present invention, two parts of the fixing member 12 are respectively wound around the positioning column 8 of the first heat exchange component 5 and the positioning column 8 of the second heat exchange component 6; or, at least a part of the fixing member 12 is simultaneously wound around the positioning column 8 of the first heat exchange component 5 and the positioning column 8 of the second heat exchange component 6. By providing the positioning column 8, more possibilities are provided for the winding method of the fixing member 12 (for example, metal wire), thereby improving the strength of the matching between the process groove 7 and the metal wire, and also improving the flexibility and selectivity of the matching between the process groove 7 and the metal wire.

[0044] Optionally, the fixed side plate 1 includes a clamping piece; there are at least two groups of heat exchange components, and the adjacent two groups of heat exchange components are respectively the first heat exchange component 5 and the second heat exchange component 6, and the first heat exchange component 5 and the second heat exchange component 6 are arranged side by side; the clamping piece of the first heat exchange component 5 is engaged with the clamping piece of the second heat exchange component 6 to relatively fix the fixed side plate 1 of the first heat exchange component 5 and the fixed side plate 1 of the second heat exchange component 6. By providing the clamping piece, the detachable fixed cooperation of the positioning structure of the first heat exchange component 5 and the positioning structure of the second heat exchange component 6 is realized by the clamping method.

[0045] It should be noted that: in a specific embodiment of the present invention, the clamping part adopts a clamping and fixing method, that is, the first heat exchange component 5 and the second heat exchange component 6 are relatively clamped and fixed by a clamping mechanism; for example: the clamping part adopts a common metal clip, and the clamping force of the metal clip during elastic deformation cooperates with each other; it is necessary to select a suitable method according to the specific situation. Under normal circumstances, the clamping and clamping method is more suitable for situations where frequent disassembly and assembly are required.

[0046] It is worth noting that: in another specific embodiment of the utility model, the clamping piece can adopt the mortise and tenon joint method commonly seen in ancient wooden structures. The mortise and tenon joint is a simple and effective structure, which connects two workpieces together by processing a raised tenon on one plate and then processing a matching groove on another plate. This structure can provide strong connection strength and is easy to process and install. In addition to the above-mentioned structure, there are many other structures for clamping, such as mortise and tenon joints, mortise and tenon joints, etc. They each have their own characteristics, and the appropriate structure can be selected for connection according to specific usage requirements.

[0047] In addition, in another specific embodiment of the utility model, the clamping piece of the first heat exchange component 5 is clamped together with the plate surface of the fixed side plate 1 of the second heat exchange component 6; and / or, the clamping piece of the second heat exchange component 6 is clamped together with the plate surface of the fixed side plate 1 of the first heat exchange component 5. In this case, the clamping piece can adopt a structure similar to a metal plate clamp (for example: a plate clamp fixedly connected on the first heat exchange component 5 is clamped together with the plate surface of the fixed side plate 1 of the second heat exchange component 6) to facilitate clamping installation.

[0048] Specifically, the positioning structure on the fixed side plate 1 of the first heat exchange component 5 includes a protrusion, and the positioning structure on the fixed side plate 1 of the second heat exchange component 6 includes a clamping groove, a part of the protrusion extends into the clamping groove, and is limitedly matched with the inner wall of the clamping groove to relatively fix the fixed side plate 1 of the first heat exchange component 5 and the fixed side plate 1 of the second heat exchange component 6. By setting the protrusion to limit the inner wall of the clamping groove, a reliable limit connection is achieved with a simple structure; of course, it is foreseeable that: there can be multiple protrusions and clamping grooves, and multiple clamping grooves and multiple protrusions are matched one by one to further improve the connection strength.

[0049] like Figure 1 , Figure 3 and Figure 4 As shown, the heat exchanger also includes an external connecting pipe 9, which has a fluid inlet and a fluid outlet that are interconnected, the fluid inlet is connected to the first heat exchange component 5, and the fluid outlet is connected to the second heat exchange component 6; at least a portion of the external connecting pipe 9 extends along the extension direction of the first header 2 and / or the extension direction of the heat exchange tube 4; the axial direction of the connection end of the external connecting pipe 9 and the first header 2 is perpendicular to the axial direction of the first header 2; and / or, the heat exchanger also includes an inlet pipe 10 and an outlet pipe 11, the inlet pipe 10 is connected to the first header 2 in a group of heat exchange components for the entry of heat transfer medium; the outlet pipe 11 is connected to the first header 2 in a group of heat exchange components for the outflow of heat transfer medium; the axial direction of the connection end of the inlet pipe 10 and the first header 2 is perpendicular to the axial direction of the first header 2; the axial direction of the connection end of the outlet pipe 11 and the first header 2 is perpendicular to the axial direction of the first header 2. By arranging the connecting ends of the inlet pipe 10 and the first collecting pipe 2 and the connecting ends of the outlet pipe 11 and the first collecting pipe 2 to be perpendicular to the axial direction of the first collecting pipe 2, the smoothness of the flow of the heat exchange medium is ensured and the inlet pipe 10 and the outlet pipe 11 occupy less space.

[0050] Optionally, the positioning structure is made of high temperature resistant material, the melting point of which is higher than the highest temperature during welding; and / or, at least two groups of heat exchange components are arranged at intervals and fixedly connected by furnace welding. By setting the positioning structure to be made of high temperature resistant material, the durability and reliability of the positioning structure during welding are further guaranteed, so that the first heat exchange component 5 and the second heat exchange component 6 will not have the problem of relative movement; by setting furnace welding, the production efficiency and yield rate of the heat exchanger are guaranteed, and the firm connection between the two adjacent groups of heat exchange components is guaranteed.

[0051] In a specific embodiment of the present invention, Figure 1 , Figure 3 and Figure 4 As shown, the external connecting pipe 9, the inlet pipe 10 and the outlet pipe 11 are all located on the same side of the heat exchanger, which not only ensures the rapid flow of the heat exchange medium in the heat exchanger, but also facilitates the unified installation of the inlet pipe 10, the external connecting pipe 9 and the outlet pipe 11. It should be noted that in other specific embodiments, the installation positions of the external connecting pipe 9, the inlet pipe 10 and the outlet pipe 11 can be flexibly adjusted according to actual needs.

[0052] Specifically, Figure 1 , Figure 3 and Figure 4As shown, in a specific embodiment of the present invention, the inlet pipe 10 is fixed to the first header 2 of a heat exchange component through a first connection seat, and the outlet pipe 11 is fixed to the first header 2 of another heat exchange component through a second connection seat. By providing the first connection seat and the second connection seat, a mounting base is provided for the inlet pipe 10 and the outlet pipe 11, so that the inlet pipe 10 and the outlet pipe 11 can be stably installed in place.

[0053] In addition, the inlet pipe 10 and the first connecting seat can be an integrated structure, and the outlet pipe 11 and the second connecting seat can also be an integrated structure, thereby further improving the integrity of the heat exchanger structure and facilitating production and manufacturing.

[0054] In summary, the utility model provides a heat exchanger, which cooperates with the fixing member 12 by setting a positioning structure on the fixed side plate 1 of the first heat exchange component 5 and a positioning structure on the fixed side plate 1 of the second heat exchange component 6, so that the first heat exchange component 5 and the second heat exchange component 6 are connected as a whole, thereby realizing the relative fixation of the first heat exchange component 5 and the second heat exchange component 6, so that when the heat exchanger is welded, the first heat exchange component 5 and the second heat exchange component 6 will not have the problem of relative movement, thereby ensuring the success rate of the overall welding of the multi-layer heat exchanger, and improving the yield rate and processing efficiency of the multi-layer heat exchanger; the heat exchanger proposed by the utility model has a compact structure and high heat exchange capacity, and through the cooperation of the positioning structure, it realizes assembly before welding, and can be subsequently welded into shape in one time by furnace welding, thereby improving the production efficiency of the heat exchanger; compared with the method of preliminarily fixing multiple groups of heat exchange components by spot welding in the prior art, the heat exchanger proposed by the utility model simplifies the production process, and the connection between multiple groups of heat exchange components is more firm and reliable, which is suitable for large-scale promotion and use.

[0055] 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.

[0056] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0057] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0058] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0059] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0060] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A heat exchanger, characterized in that: The invention comprises a heat exchange component, wherein the heat exchange component comprises two fixed side plates (1), a first header (2), a second header (3) and a plurality of heat exchange tubes (4); the first header (2) and the second header (3) are arranged at intervals, the plurality of heat exchange tubes (4) are arranged at intervals in the axial direction of the first header (2) and the second header (3), and the two ends of each heat exchange tube (4) are respectively connected to the first header (2) and the second header (3); the two fixed side plates (1) are respectively arranged at the two ends of the first header (2) in the axial direction and are located on the outside of the heat exchange tube (4); at least one of the fixed side plates (1) has a positioning structure for cooperating with a fixing member (12); a part of the fixing member (12) cooperates with the positioning structure to fix the heat exchange component.

2. The heat exchanger according to claim 1, characterized in that: The positioning structure comprises a process groove (7) arranged on the side of the fixed side plate (1); at least a part of the fixing member (12) is wrapped around the two fixed side plates (1), and a part of the fixing member (12) is arranged in the process groove (7) to fix the heat exchange component.

3. The heat exchanger according to claim 2, characterized in that: The heat exchange components are at least two groups, and the two adjacent groups of heat exchange components are respectively a first heat exchange component (5) and a second heat exchange component (6). The first heat exchange component (5) and the second heat exchange component (6) are arranged side by side. The fixed side plate (1) of the first heat exchange component (5) and the fixed side plate (1) of the second heat exchange component (6) are both correspondingly provided with the process groove (7). A part of the fixing member (12) is wound around the fixed side plate (1) of at least one of the first heat exchange component (5) and the second heat exchange component (6), and is correspondingly arranged in the process groove (7) to relatively fix the first heat exchange component (5) and the second heat exchange component (6); after being relatively fixed, the first heat exchange component (5) and the second heat exchange component (6) are fixedly connected by welding.

4. The heat exchanger according to claim 3, characterized in that A portion of each of the fixing parts (12) is respectively wrapped around the fixing side plate (1) of each of the heat exchange components, and each of the fixing parts (12) is correspondingly arranged in the process groove (7) to fix each of the heat exchange components individually; or, the fixing side plate (1) of the first heat exchange component (5) and the fixing side plate (1) of the second heat exchange component (6) have first sides that abut against each other, and the first side is provided with the process groove (7), and one of the fixing parts (12) is sequentially wrapped around the fixing side plate (1) of the first heat exchange component (5), the process groove (7) on the first side, and the fixing side plate (1) of the second heat exchange component (6) until it passes through all of the process grooves (7) and is then wrapped and fixed.

5. The heat exchanger according to any one of claims 2 to 4, characterized in that: The process groove (7) is a through hole, and the cross-section along the direction perpendicular to the axial direction of the first collecting pipe (2) is one of square, arc and trapezoidal; and / or, the two fixed side plates (1) both have the process groove (7) arranged accordingly.

6. The heat exchanger according to claim 1, characterized in that The positioning structure comprises a positioning column (8) protruding from the fixed side plate (1) in the thickness direction of the fixed side plate (1), a portion of the fixing member (12) is connected to the positioning column (8) of the heat exchange component, and a portion of the fixing member (12) is wrapped around the two fixed side plates (1) and cooperates with the positioning column (8) to fix the heat exchange component.

7. The heat exchanger according to claim 1, characterized in that The fixed side plate (1) includes a snap-fit ​​part; the heat exchange components are at least two groups, and the two adjacent groups of heat exchange components are respectively a first heat exchange component (5) and a second heat exchange component (6), and the first heat exchange component (5) and the second heat exchange component (6) are arranged side by side; the snap-fit ​​part of the first heat exchange component (5) and the snap-fit ​​part of the second heat exchange component (6) are snap-fitted to relatively fix the fixed side plate (1) of the first heat exchange component (5) and the fixed side plate (1) of the second heat exchange component (6).

8. The heat exchanger according to claim 1, characterized in that The heat exchange components are at least two groups, and the two adjacent groups of heat exchange components are respectively a first heat exchange component (5) and a second heat exchange component (6), and the first heat exchange component (5) and the second heat exchange component (6) are arranged side by side; the positioning structure on the fixed side plate (1) of the first heat exchange component (5) includes a protruding portion, and the positioning structure on the fixed side plate (1) of the second heat exchange component (6) includes a snap-in groove, a part of the protruding portion extends into the snap-in groove and is limitedly matched with the inner wall of the snap-in groove to relatively fix the fixed side plate (1) of the first heat exchange component (5) and the fixed side plate (1) of the second heat exchange component (6).

9. The heat exchanger according to claim 1, characterized in that: The heat exchange components are at least two groups, and the two adjacent groups of heat exchange components are respectively a first heat exchange component (5) and a second heat exchange component (6), and the first heat exchange component (5) and the second heat exchange component (6) are arranged in parallel and in communication; The heat exchanger further comprises an external connecting pipe (9), wherein the external connecting pipe (9) has a fluid inlet and a fluid outlet which are connected to each other, wherein the fluid inlet is connected to the first heat exchange component (5), and the fluid outlet is connected to the second heat exchange component (6).

10. The heat exchanger according to claim 1, characterized in that The positioning structure is made of high temperature resistant material, and the melting point of the high temperature resistant material is higher than the highest temperature during welding.

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